po: update translations and regenerate POT file and PO files

The leftedge variable is a column number, not an x position.

.gitignore

@@ -16,6 +16,7 @@ core
 /ABOUT-NLS
 /INSTALL
 /aclocal.m4
+/ar-lib
 /autom4te.cache
 /compile
 /config.cache
@@ -34,6 +35,47 @@ core
 /mkinstalldirs
 /stamp-h1
 
+# gettext m4 files.
+/m4/codeset.m4
+/m4/extern-inline.m4
+/m4/fcntl-o.m4
+/m4/gettext.m4
+/m4/glibc2.m4
+/m4/glibc21.m4
+/m4/iconv.m4
+/m4/intdiv0.m4
+/m4/intl.m4
+/m4/intldir.m4
+/m4/intlmacosx.m4
+/m4/intmax.m4
+/m4/inttypes-pri.m4
+/m4/inttypes_h.m4
+/m4/lcmessage.m4
+/m4/lib-ld.m4
+/m4/lib-link.m4
+/m4/lib-prefix.m4
+/m4/lock.m4
+/m4/longlong.m4
+/m4/nls.m4
+/m4/po.m4
+/m4/printf-posix.m4
+/m4/progtest.m4
+/m4/size_max.m4
+/m4/stdint_h.m4
+/m4/threadlib.m4
+/m4/uintmax_t.m4
+/m4/visibility.m4
+/m4/wchar_t.m4
+/m4/wint_t.m4
+/m4/xsize.m4
+
+# gnulib entries
+/gnulib/
+/lib/
+/m4/.gitignore
+/m4/gnulib-cache.m4
+/snippet/
+
 /nano.spec
 /src/nano
 /src/revision.h

ChangeLog

@@ -1,3 +1,143 @@
+Changes between v2.7.5 and v2.8.0:
+----------------------------------
+
+Benno Schulenberg (56):
+      bindings: accept "q" and "x" to exit from help viewer and file browser
+      bindings: group the three search-again shortcuts together
+      bump version numbers and add a news item for the 2.8.0 release
+      docs: mention some more differences with Pico in the Info document
+      files: drop the pointless "[from ./]" from the insert-file prompt
+      files: on second thought... keep the "[from ./]"
+      input: count a manually entered unicode as one character
+      moving: don't try to redraw lines that have gone outside the viewport
+      moving: /do/ redraw the prior line when the viewport hasn't changed
+      moving: the current chunk cannot be beyond the last chunk of a line
+      oops -- that's what you get when you don't test things before pushing
+      painting: don't try to start highlighting before column zero
+      screen: don't push the longer-line indicator ($) to the next row
+      spelling: keep the cursor at end-of-line if it was there
+      startup: add option 'nopauses' to disable pausing after a warning
+      tweaks: add a warning for a condition that should never occur
+      tweaks: avoid a few needless reallocations
+      tweaks: chuck some debugging stuff and some useless asserts
+      tweaks: condense some declarations by reshuffling
+      tweaks: correct some formatting irregularities in the FAQ
+      tweaks: don't loop over an initializer
+      tweaks: don't optimize for the wrong case
+      tweaks: don't turn the mark off before it's needed
+      tweaks: ehm... the warning is more important for the softwrap case
+      tweaks: elide an intermediate variable
+      tweaks: elide a small intermediate buffer
+      tweaks: elide a variable
+      tweaks: elide two variables, and condense some statements
+      tweaks: factor out a bit of common code
+      tweaks: fix compilation with --enable-tiny --enable-help
+      tweaks: frob a couple of comments
+      tweaks: frob some parentheses and other things, to be more consistent
+      tweaks: gettextize a forgotten error message
+      tweaks: make WhereIsNext available in browser in tiny version
+      tweaks: mark a message for translation
+      tweaks: optimize determining the number of columns that a text spans
+      tweaks: reduce the scope of five variables, and frob some comments
+      tweaks: remove a disabled warning, and adjust a translator hint
+      tweaks: rename and shorten a small helper function
+      tweaks: rename a variable and invert its logic
+      tweaks: rename a variable, drop a false assert, and reshuffle a bit
+      tweaks: rename three variables, to better distinguish bytes from columns
+      tweaks: rename two variables, to be more distinctive
+      tweaks: reshuffle some lines and adjust some comments
+      tweaks: reshuffle some more lines and improve four comments
+      tweaks: reshuffle some statements, to avoid double assignments
+      tweaks: reshuffle the bindings to group things more logically
+      tweaks: reshuffle three statements, and shorten a comment
+      tweaks: reshuffle two declarations for a more consistent order
+      tweaks: shorten a bit of logic
+      tweaks: simplify and correct a computation
+      tweaks: suggest a separate color scheme for root
+      tweaks: trim a displayable string in a more efficient manner
+      tweaks: use two extra variables to make it clearer what is being done
+      usage: don't mention +LINE,COLUMN as an option, because it isn't
+      wrapping: add the correct char length when skipping consecutive blanks
+
+David Lawrence Ramsey (52):
+      configure: don't check for the existence of iswspace() anymore
+      display: don't compensate for chunks before firstcolumn
+      display: don't draw more chunks than the screen can hold
+      display: limit an optimization to non-softwrap mode
+      display: make PageUp/PageDown use the correct beginning of the viewport
+      docs: update README.GIT for gnulib-related changes
+      files: revamp the insertion of a file, to be more like pasting text
+      moving: determine the correct leftedge when paging up/down too
+      replacing: fix spotlight() to highlight words properly in softwrap mode
+      softwrap: account for firstcolumn in reset_cursor()
+      softwrap: account for firstcolumn when checking for offscreen current
+      softwrap: account for firstcolumn when scrolling up a line
+      softwrap: account for softwrap in get_page_start()
+      softwrap: account for softwrapped chunks when adding text
+      softwrap: account for softwrap when checking whether current is offscreen
+      softwrap: add two chunk-iterator functions
+      softwrap: adjust firstcolumn when the window width changes
+      softwrap: count softwrapped chunks properly in do_gotolinecolumn()
+      softwrap: count softwrapped chunks properly in do_uncut_text()
+      softwrap: count softwrapped chunks properly in read_file()
+      softwrap: improve End's behavior with softwrapped chunks
+      softwrap: improve Home's behavior with softwrapped lines
+      softwrap: improve Left and Right's behavior with softwrapped chunks
+      softwrap: improve PageUp and PageDown's behavior with softwrapped chunks
+      softwrap: improve Up and Down's behavior with softwrapped chunks
+      softwrap: iterate through softwrapped chunks better in do_mouse()
+      softwrap: iterate through softwrapped chunks in adjust_viewport()
+      softwrap: iterate through softwrapped chunks in edit_scroll()
+      softwrap: move the updating of a softwrapped line to a new function
+      softwrap: prepare for a more flexible viewport
+      softwrap: remove and replace workarounds for firstcolumn
+      softwrap: save and restore firstcolumn when copying text
+      softwrap: save and restore firstcolumn when internally spell-fixing text
+      softwrap: save and restore firstcolumn when replacing text
+      softwrap: save firstcolumn when justifying, restore it when unjustifying
+      speller: fix replacing marked text in the alternate spell checker
+      syntax: nanorc: color also the option "linenumbers" as being valid
+      tweaks: add a parameter to do_home() and do_end()
+      tweaks: fix a comment typo
+      tweaks: mention nano's ability to read from standard input in usage()
+      tweaks: move comments outside of if blocks in break_line()
+      tweaks: prepare for improvements to do_home() and do_end()
+      tweaks: remove cluttering #ifdefs from break_line()
+      tweaks: rename need_horizontal_scroll() to line_needs_update()
+      tweaks: slightly optimize an allocation in display_string()
+      tweaks: stop converting text once we overshoot span columns
+      undo: fix undoing/redoing insertions, since they no longer do partitioning
+      usage: mention the -g/--showcursor option
+      weeding: remove ensure_line_is_visible()
+      weeding: remove maxlines and related code
+      weeding: remove partitioning and related stuff from do_insertfile()
+      weeding: remove partitioning and related stuff from do_justify()
+
+Hans-Bernhard Broeker (1):
+      tweaks: make sure calls to <ctype.h> functions/macros use "unsigned char"
+
+Mike Frysinger (19):
+      add an explicit test for set_escdelay()
+      add support for gnulib
+      assume getopt_long support is always available
+      assume regex.h support is always available
+      configure: require autoconf-2.69/automake-1.14
+      configure: require gettext-0.18.3, and drop our bundled m4 files
+      drop the getdelim/getline fallback functions
+      drop the glib fallback for snprintf/vsnprintf
+      drop the isblank/iswblank fallback functions
+      drop the wchar.h/wctype.h/stdarg.h checks
+      drop various str fallback functions
+      fix build on systems without pwd.h
+      handle builds on systems without termios.h
+      handle deficient signal systems
+      pull in the glob module from gnulib
+      pull in the lstat module from gnulib
+      pull in the nl_langinfo & wcwidth modules from gnulib
+      pull in the sys_wait module from gnulib
+      tweaks: disable gnulib's workaround for the globbing of broken symlinks
+
+
 Changes between v2.7.4 and v2.7.5:
 ----------------------------------
 

Makefile.am

@@ -1,6 +1,6 @@
 AUTOMAKE_OPTIONS = gnu no-dependencies
 
-SUBDIRS = doc m4 po src
+SUBDIRS = doc lib m4 po src
 
 if USE_COLOR
 SUBDIRS += syntax

NEWS

@@ -1,3 +1,19 @@
+2017.03.31 - GNU nano 2.8.0 "Axat" makes it easier to move around in
+		softwrapped lines: the Up and Down keys now step from
+		visual row to visual row instead of jumping between
+		logical lines, and the Home and End keys now move to
+		the start and end of a row, and only when already
+		there, then to the start and end of the logical line.
+		Furthermore, the screen can now scroll per row instead
+		of always per logical line.  On an entirely different
+		front: nano now makes use of gnulib, to make it build
+		on more platforms.  In short: there were many internal
+		changes, not many user-visible ones (apart form the
+		new softwrap navigation).  The conversion to gnulib
+		was done by Mike Frysinger, the softwrap overhaul by
+		David Ramsey.
+
+
 2017.02.23 - GNU nano 2.7.5 "Nijntje" can properly search and replace
 		the \B and \b regex anchors, correctly repaints things
 		when multiline regexes with identical start and end are

README.GIT

@@ -11,10 +11,10 @@ Prerequisites
 To successfully compile GNU nano from git, you'll need the following
 packages:
 
-- autoconf    (version >= 2.61)
-- automake    (version >= 1.7)
-- autopoint   (version >= 0.11.5)
-- gettext     (version >= 0.11.5)
+- autoconf    (version >= 2.69)
+- automake    (version >= 1.14)
+- autopoint   (version >= 0.18.3)
+- gettext     (version >= 0.18.3)
 - git         (version >= 2.7.4)
 - groff       (version >= 1.12)
 - pkg-config  (version >= 0.22)
@@ -24,8 +24,6 @@ packages:
 
 If you want UTF-8 support, you will also need libncursesw5-dev installed
 (version >= 5.7), or libslang2-dev (version >= 2.0) if you use --with-slang.
-If your system doesn't have 'snprintf' or 'vsnprintf' (which the configure
-script will check for), you will also need glib-2.x installed.
 
 These should all be available in your distro's package manager or software
 center, or otherwise on any GNU mirror.

TODO

@@ -8,9 +8,7 @@ Vague musings:
 - Allow indentation of marked text by spaces as well as tabs?
 - Allow indentation to add just enough columns to reach the nearest
   multiple of tabsize, rather than always adding tabsize columns?
-- Allow conversion between different character sets.  Maybe use glib's
-  iconv() if the system's iconv() is inadequate, since we already use
-  glib's vsnprintf() if the system lacks vsnprintf()?
+- Allow conversion between different character sets.
 - Allow setting marks (saved positions, not to be confused with the mark
   set via Ctrl-^) at various lines and/or columns in the buffer, and
   allow movement between them with a single keystroke?

autogen.sh

@@ -1,4 +1,47 @@
 #!/bin/sh
 # Generate configure & friends for GIT users.
 
+gnulib_url="git://git.sv.gnu.org/gnulib.git"
+gnulib_hash="4084b3a1094372b960ce4a97634e08f4538c8bdd"
+
+modules="
+	getdelim
+	getline
+	getopt-gnu
+	glob
+	isblank
+	iswblank
+	lstat
+	nl_langinfo
+	regex
+	sigaction
+	snprintf-posix
+	stdarg
+	strcase
+	strcasestr-simple
+	strnlen
+	sys_wait
+	vsnprintf-posix
+	wchar
+	wctype-h
+	wcwidth
+"
+
+# Make sure the local gnulib git repo is up-to-date.
+if [ ! -d "gnulib" ]; then
+	git clone --depth=123 ${gnulib_url}
+fi
+cd gnulib >/dev/null || exit 1
+curr_hash=$(git log -1 --format=%H)
+if [ "${gnulib_hash}" != "${curr_hash}" ]; then
+	git pull
+	git checkout -f ${gnulib_hash}
+fi
+cd .. >/dev/null || exit 1
+
+rm -rf lib
+./gnulib/gnulib-tool \
+	--import \
+	${modules}
+
 autoreconf -f -i -s

configure.ac

@@ -16,20 +16,30 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see http://www.gnu.org/licenses/.
 
-AC_INIT([GNU nano], [2.7.5], [nano-devel@gnu.org], [nano])
+AC_INIT([GNU nano], [2.8.0], [nano-devel@gnu.org], [nano])
 AC_CONFIG_SRCDIR([src/nano.c])
 AC_CANONICAL_HOST
-AM_INIT_AUTOMAKE
+AM_INIT_AUTOMAKE([1.14])
 AC_CONFIG_HEADERS([config.h])
 
 dnl Make sure the ONCE macros are available.
 
-AC_PREREQ(2.61)
+AC_PREREQ([2.69])
+
+dnl Lie about gnulib features we don't use to speed up & shrink down.
+
+gl_cv_func_printf_directive_n=yes
+gl_cv_func_printf_infinite_long_double=yes
+gl_cv_func_printf_long_double=yes
+gl_cv_func_snprintf_directive_n=yes
+gl_cv_glob_lists_symlinks=yes
 
 dnl Checks for programs.
 
 AC_GNU_SOURCE
 AC_PROG_CC
+gl_EARLY
+gl_INIT
 AC_PROG_LN_S
 AC_ISC_POSIX
 AC_SYS_LARGEFILE
@@ -37,7 +47,7 @@ PKG_PROG_PKG_CONFIG
 
 dnl Internationalization macros.
 
-AM_GNU_GETTEXT_VERSION(0.11.5)
+AM_GNU_GETTEXT_VERSION([0.18.3])
 AM_GNU_GETTEXT([external], [need-ngettext])
 AM_CONDITIONAL(USE_NLS, test x$USE_NLS = xyes)
 
@@ -48,7 +58,7 @@ AC_DEFINE_DIR([PKGDATADIR], [pkgdatadir], [Where data are placed to.])
 
 dnl Checks for header files.
 
-AC_CHECK_HEADERS(getopt.h libintl.h limits.h regex.h sys/param.h wchar.h wctype.h stdarg.h)
+AC_CHECK_HEADERS(libintl.h limits.h pwd.h termios.h sys/param.h)
 
 dnl Checks for options.
 
@@ -71,15 +81,7 @@ fi
 if test "x$enable_color" = xno; then
     AC_DEFINE(DISABLE_COLOR, 1, [Define this to disable syntax highlighting.])
 else
-    if test x$ac_cv_header_regex_h != xyes; then
-	AC_MSG_ERROR([
-*** The header file regex.h was not found.  If you wish to have
-*** color support, this header file is required.  Please either
-*** install C libraries that include the regex.h file, or call
-*** the configure script with --disable-color.])
-    else
-	color_support=yes
-    fi
+    color_support=yes
 fi
 
 AC_ARG_ENABLE(comment,
@@ -467,30 +469,9 @@ int main(void)
 
 dnl Checks for functions.
 
-AC_CHECK_FUNCS(getdelim getline isblank strcasecmp strcasestr strncasecmp strnlen snprintf vsnprintf)
-
 if test "x$enable_utf8" != xno; then
-    AC_CHECK_FUNCS(iswalnum iswblank iswpunct iswspace nl_langinfo mblen mbstowcs mbtowc wctomb wcwidth)
+    AC_CHECK_FUNCS(iswalnum iswpunct mblen mbstowcs mbtowc wctomb)
 fi
-
-if test x$ac_cv_func_snprintf = xno; then
-    AM_PATH_GLIB_2_0(2.0.0,,
-	AC_MSG_ERROR([
-*** snprintf() not found.  GLIB 2.x not found either.
-*** You should install the GLIB 2.x library which can
-*** be found at http://ftp.gtk.org/.]),
-	glib)
-fi
-
-if test x$ac_cv_func_vsnprintf = xno; then
-    AM_PATH_GLIB_2_0(2.0.0,,
-	AC_MSG_ERROR([
-*** vsnprintf() not found.  GLIB 2.x not found either.
-*** You should install the GLIB 2.x library which can
-*** be found at http://ftp.gtk.org/.]),
-	glib)
-fi
-
 dnl Checks for typedefs, structures, and compiler characteristics.
 
 dnl Checks for available flags.
@@ -500,8 +481,6 @@ AX_CHECK_COMPILE_FLAG([-Wall], [CFLAGS="$CFLAGS -Wall"], [], [])
 dnl Checks for library functions.
 
 AC_TYPE_SIGNAL
-AC_FUNC_VPRINTF
-AC_CHECK_FUNCS(getopt_long)
 
 dnl Checks for libraries.
 
@@ -568,6 +547,9 @@ fi
 AC_CHECK_LIB([$CURSES_LIB_NAME], [use_default_colors],
 	     [AC_DEFINE(HAVE_USE_DEFAULT_COLORS, 1, [Define this if your curses library has the use_default_colors() command.])],
 	     [], [$CURSES_LIB])
+AC_CHECK_LIB([$CURSES_LIB_NAME], [set_escdelay],
+	     [AC_DEFINE(HAVE_SET_ESCDELAY, 1, [Define this if your curses library has the set_escdelay() function.])],
+	     [], [$CURSES_LIB])
 AC_CHECK_LIB([$CURSES_LIB_NAME], [key_defined],
 	     [AC_DEFINE(HAVE_KEY_DEFINED, 1, [Define this if your curses library has the key_defined() command.])],
 	     [], [$CURSES_LIB])
@@ -578,25 +560,15 @@ LIBS="$LIBS $CURSES_LIB"
 
 AC_SUBST(CURSES_LIB)
 
-if test "x$GLIB_CFLAGS" != "x"; then
-    CFLAGS="$CFLAGS $GLIB_CFLAGS"
-fi
-if test "x$GLIB_LIBS" != "x"; then
-    LDFLAGS="$LDFLAGS $GLIB_LIBS"
-fi
-
 if test "x$enable_utf8" != xno && \
     test x$CURSES_LIB_WIDE = xyes && \
     test x$ac_cv_func_iswalnum = xyes && \
     test x$ac_cv_func_iswpunct = xyes && \
-    (test x$ac_cv_func_iswblank = xyes || test x$ac_cv_func_iswspace = xyes) && \
-    test x$ac_cv_func_nl_langinfo = xyes && \
     test x$ac_cv_func_mblen = xyes && \
     test x$ac_cv_func_mbstowcs = xyes && \
     test x$ac_cv_func_mbtowc = xyes && \
-    test x$ac_cv_func_wctomb = xyes && \
-    test x$ac_cv_func_wcwidth = xyes; then
-	AC_DEFINE(ENABLE_UTF8, 1, [Define this if your system has sufficient UTF-8 support (a wide curses library, iswalnum(), iswpunct(), iswblank() or iswspace(), nl_langinfo, mblen(), mbstowcs(), mbtowc(), wctomb(), and wcwidth()).])
+    test x$ac_cv_func_wctomb = xyes; then
+	AC_DEFINE(ENABLE_UTF8, 1, [Define this if your system has sufficient UTF-8 support.])
 else
     if test "x$enable_utf8" = xyes; then
 	AC_MSG_ERROR([
@@ -747,6 +719,7 @@ AC_CONFIG_FILES([
 Makefile
 doc/Makefile
 doc/sample.nanorc
+lib/Makefile
 m4/Makefile
 po/Makefile.in
 src/Makefile

doc/faq.html

@@ -82,7 +82,7 @@
 <h2><a name="1.5"></a>1.5. Why the name change from TIP?</h2>
 <blockquote><p>On January 10, 2000, TIP was officially renamed to nano because of a namespace conflict with another program called 'tip'. The original 'tip' program &quot;establishes a full duplex terminal connection to a remote host&quot;, and was included with many older Unix systems (and newer ones like Solaris). The conflict was not noticed at first because there is no 'tip' utility included with most GNU/Linux distributions (where nano was developed).</p></blockquote>
 <h2><a name="1.6"></a>1.6. What is the current version of nano?</h2>
-<blockquote><p>The current version of nano <i>should</i> be <b>2.7.5</b>.  Of course, you should always check the <a href="https://nano-editor.org/">nano homepage</a> to see what the latest and greatest version is.</p></blockquote>
+<blockquote><p>The current version of nano <i>should</i> be <b>2.8.0</b>.  Of course, you should always check the <a href="https://nano-editor.org/">nano homepage</a> to see what the latest and greatest version is.</p></blockquote>
 <h2><a name="1.7"></a>1.7. I want to read the man page without having to download the program!</h2>
 <blockquote><p>Jeez, demanding, aren't we? Okay, look <a href="https://nano-editor.org/dist/latest/nano.1.html">here</a>.</p></blockquote>
 <hr width="100%">
@@ -230,12 +230,13 @@
 <h2><a name="6.1"></a>6.1. Why should I use nano instead of Pico?</h2>
 <blockquote><p>There are many reasons to use nano instead of Pico. A more complete list can be found at the <a href="https://nano-editor.org/">nano homepage</a>.</p></blockquote>
 <h2><a name="6.2"></a>6.2. Why should I use Pico instead of nano?</h2>
-<blockquote><p>Again, check out the <a href="https://nano-editor.org/">nano homepage</a> for a good summary of reasons. It really is a matter of personal preference as to which editor you should use. If you're the type of person who likes using the original version of a program, then Pico is the editor for you. If you don't mind sacrificing mailer integration with Pine, and are looking for a few more features, as well as a 'better' license in terms of adding your own changes, nano is the way to go.</p><p>Note that the last of these no longer applies to the new version of Pine, <a href="http://www.washington.edu/alpine/">Alpine</a>, which is under the Apache License, version 2.0.</p></blockquote>
+<blockquote><p>Again, check out the <a href="https://nano-editor.org/">nano homepage</a> for a good summary of reasons. It really is a matter of personal preference as to which editor you should use. If you're the type of person who likes using the original version of a program, then Pico is the editor for you. If you don't mind sacrificing mailer integration with Pine, and are looking for a few more features, as well as a 'better' license in terms of adding your own changes, nano is the way to go.</p>
+<p>Note that the last of these no longer applies to the new version of Pine, <a href="http://www.washington.edu/alpine/">Alpine</a>, which is under the Apache License, version 2.0.</p></blockquote>
 <h2><a name="6.3"></a>6.3. What is so bad about the older Pine license?</h2>
 <blockquote><p>The U of W license for older versions of Pine and Pico is not considered truly Free Software according to both the Free Software Foundation and the <a href="http://www.debian.org/social_contract#guidelines">Debian Free Software Guidelines</a>. The main problem regards the limitations on distributing derived works: according to UW, you can distribute their software, and you can modify it, but you can not do both, i.e. distribute modified binaries.</p></blockquote>
 <h2><a name="6.4"></a>6.4. Okay, well, what mail program should I use then?</h2>
-<blockquote><p>If you are looking to use a Free Software program similar to Pine, and Emacs is not your thing, you should definitely take a look at <a href="http://www.mutt.org/">mutt</a>. It is a full-screen, console based mail program that actually has a lot more flexibility than Pine, but has a keymap included in the distribution that allows you to use the same keystrokes as Pine would to send and receive mail. It's also under the GNU General Public License, version 2.0.<P>
-Of course, due to the license change you can now use the <A HREF="http://www.washington.edu/alpine/">Alpine distribution</A> of PINE as it is now considered Free Software, but you would be sacrificing many of nano's features to do so.</p></blockquote>
+<blockquote><p>If you are looking to use a Free Software program similar to Pine, and Emacs is not your thing, you should definitely take a look at <a href="http://www.mutt.org/">mutt</a>. It is a full-screen, console based mail program that actually has a lot more flexibility than Pine, but has a keymap included in the distribution that allows you to use the same keystrokes as Pine would to send and receive mail. It's also under the GNU General Public License, version 2.0.</p>
+<p>Of course, due to the license change you can now use the <a href="http://www.washington.edu/alpine/">Alpine distribution</a> of PINE as it is now considered Free Software, but you would be sacrificing many of nano's features to do so.</p></blockquote>
 <hr width="100%">
 
 <h1><a name="7"></a>7. Miscellaneous</h1>
@@ -248,8 +249,8 @@ Of course, due to the license change you can now use the <A HREF="http://www.was
 <blockquote><p>That's fine. Send it <a href="mailto:nano-devel@gnu.org">our way</a>! Better yet, fix a <a href="https://savannah.gnu.org/bugs/?group=nano">bug</a> in the program or implement a <a href="https://nano-editor.org/dist/latest/TODO">cool feature</a> and send us that instead (though cash is fine too).</p></blockquote>
 <h2><a name="7.3"></a>7.3. How do I submit a bug report or patch?</h2>
 <blockquote>
-  <p>The best place to submit bugs is to the <a href="https://savannah.gnu.org/bugs/?group=nano">Savannah bug tracker</a> as you can check whether the bug you are submitting has already been submitted.
-  <p>Please submit patches for nano via the <a href="https://savannah.gnu.org/patch/?group=nano">Savannah project's patch manager</a> for the nano project.</p></blockquote>
+  <p>The best way to submit bugs is through the <a href="https://savannah.gnu.org/bugs/?group=nano">Savannah bug tracker</a>, as you can check whether the bug you are reporting has already been submitted, and it makes it easier for the maintainers to keep track of them.
+  <p>You can submit patches for nano via <a href="https://savannah.gnu.org/patch/?group=nano">Savannah's patch manager</a>.</p></blockquote>
 <h2><a name="7.4"></a>7.4. How do I join the development team?</h2>
 <blockquote><p>The easiest way is to consistently send in good patches that add some needed functionality, fix a bug or two, and/or make the program more optimized/efficient. Then ask nicely and you will probably be added to the Savannah development list and be given write access after a while. There is a lot of responsibility that goes along with being a team member, so don't think it's just something to add to your resume.</p></blockquote>
 <h2><a name="7.5"></a>7.5. Can I have write access to the git tree?</h2>

doc/nano.1

@@ -17,7 +17,7 @@
 .\"   Documentation License along with this program.  If not, see
 .\"   <http://www.gnu.org/licenses/>.
 .\"
-.TH NANO 1 "version 2.7.5" "February 2017"
+.TH NANO 1 "version 2.8.0" "March 2017"
 .\" Please adjust this date whenever revising the manpage.
 
 .SH NAME

doc/nano.texi

@@ -6,8 +6,8 @@
 
 @smallbook
 @set EDITION 0.4
-@set VERSION 2.7.5
-@set UPDATED February 2017
+@set VERSION 2.8.0
+@set UPDATED March 2017
 
 @dircategory Editors
 @direntry
@@ -21,7 +21,7 @@
 @titlepage
 @title GNU @code{nano}
 @subtitle a small and friendly text editor.
-@subtitle version 2.7.5
+@subtitle version 2.8.0
 
 @author Chris Allegretta
 @page
@@ -743,6 +743,10 @@ Don't convert files from DOS/Mac format.
 @item set nohelp
 Don't display the help lists at the bottom of the screen.
 
+@item set nopauses
+Don't pause between warnings at startup.  This means that only
+the last one will be visible (when there are multiple ones).
+
 @item set nonewlines
 Don't add newlines to the ends of files.
 
@@ -1391,7 +1395,7 @@ browser exits.
 @chapter Pico Compatibility
 
 @code{nano} attempts to emulate Pico as closely as possible, but there
-are certain differences between the editors:
+are some differences between the editors:
 
 @table @code
 
@@ -1405,12 +1409,29 @@ ask any more), or Cancel (stop with replacing).
 @item Search and Replace History
 When the option @code{-H} or @code{--historylog} is given (or set in
 the .nanorc file), text entered as search or replace strings is stored.
-These strings can be accessed with the up/down arrow keys.  A retrieved
-string can subsequently be edited.
+These strings can be accessed with the up/down arrow keys, or you can
+type the first few characters and then use Tab to cycle through the
+matching strings.  A retrieved string can subsequently be edited.
 
-@item Writing, Appending, or Prepending Selected Text to Files
-Text selected using the marking key (^^) can be written out, appended,
-or prepended to a new or existing file using the WriteOut key (^O).
+@item Position History
+When the option @code{-P} or @code{--positionlog} is given (or set in
+the .nanorc file), @code{nano} will store the position of the cursor
+when you close a file, and will place the cursor in that position
+again when you later reopen the file.
+
+@item Writing Selected Text to Files
+When using the Write-Out key (^O), text that has been selected using the
+marking key (^^) can not just be written out to a new (or existing) file,
+it can also be appended or prepended to an existing file.
+
+@item Reading Text from a Command
+When using the Read-File key (^R), @code{nano} can not just read a file,
+it can also read the output of a command to be run (^X).
+
+@item File Browser
+In the file browser, @code{nano} does not implement the Add, Copy,
+Rename, and Delete commands that Pico provides.  In @code{nano} the
+browser is just a file browser, not a file manager.
 
 @item Toggles
 Many options which alter the functionality of the program can be

doc/nanorc.5

@@ -17,7 +17,7 @@
 .\"   Documentation License along with this program.  If not, see
 .\"   <http://www.gnu.org/licenses/>.
 .\"
-.TH NANORC 5 "version 2.7.5" "February 2017"
+.TH NANORC 5 "version 2.8.0" "March 2017"
 .\" Please adjust this date whenever revising the manpage.
 
 .SH NAME
@@ -151,6 +151,10 @@ Don't display the two help lines at the bottom of the screen.
 .B set nonewlines
 Don't automatically add a newline to the ends of files.
 .TP
+.B set nopauses
+Don't pause between warnings at startup.  This means that only
+the last one will be visible (when there are multiple ones).
+.TP
 .B set nowrap
 Don't hard-wrap text at all.
 .TP

doc/rnano.1

@@ -16,7 +16,7 @@
 .\"   Documentation License along with this program.  If not, see
 .\"   <http://www.gnu.org/licenses/>.
 .\"
-.TH RNANO 1 "version 2.7.5" "February 2017"
+.TH RNANO 1 "version 2.8.0" "March 2017"
 .\" Please adjust this date whenever revising the manpage.
 
 .SH NAME

doc/sample.nanorc.in

@@ -95,6 +95,10 @@
 ## Don't display the helpful shortcut lists at the bottom of the screen.
 # set nohelp
 
+## Don't pause between warnings at startup.  Which means that only the
+## last one will be readable (when there are multiple ones).
+# set nopauses
+
 ## Don't add newlines to the ends of files.
 # set nonewlines
 
@@ -198,10 +202,16 @@
 ## Paint the interface elements of nano.
 ## These are examples; by default there are no colors.
 # set titlecolor brightwhite,blue
-# set numbercolor cyan
 # set statuscolor brightwhite,green
-# set keycolor green
-# set functioncolor yellow
+# set numbercolor cyan
+# set keycolor cyan
+# set functioncolor green
+## In root's .nanorc you might want to use:
+# set titlecolor brightwhite,red
+# set statuscolor brightwhite,red
+# set numbercolor magenta
+# set keycolor brightmagenta
+# set functioncolor magenta
 
 
 ## Setup of syntax coloring.

m4/Makefile.am

@@ -1,5 +1,36 @@
-EXTRA_DIST = ac_define_dir.m4 codeset.m4 gettext.m4 glib-2.0.m4 \
-		glibc21.m4 iconv.m4 intdiv0.m4 inttypes_h.m4 \
-		inttypes.m4 inttypes-pri.m4 isc-posix.m4 lcmessage.m4 \
-		lib-ld.m4 lib-link.m4 lib-prefix.m4 progtest.m4 \
-		stdint_h.m4 uintmax_t.m4 ulonglong.m4
+EXTRA_DIST = \
+	ac_define_dir.m4 \
+	ax_check_compile_flag.m4 \
+	codeset.m4 \
+	extern-inline.m4 \
+	fcntl-o.m4 \
+	gettext.m4 \
+	glibc21.m4 \
+	glibc2.m4 \
+	gnulib-cache.m4 \
+	iconv.m4 \
+	intdiv0.m4 \
+	intldir.m4 \
+	intl.m4 \
+	intlmacosx.m4 \
+	intmax.m4 \
+	inttypes_h.m4 \
+	inttypes-pri.m4 \
+	lcmessage.m4 \
+	lib-ld.m4 \
+	lib-link.m4 \
+	lib-prefix.m4 \
+	lock.m4 \
+	longlong.m4 \
+	nls.m4 \
+	po.m4 \
+	printf-posix.m4 \
+	progtest.m4 \
+	size_max.m4 \
+	stdint_h.m4 \
+	threadlib.m4 \
+	uintmax_t.m4 \
+	visibility.m4 \
+	wchar_t.m4 \
+	wint_t.m4 \
+	xsize.m4

m4/codeset.m4

@@ -1,23 +0,0 @@
-# codeset.m4 serial AM1 (gettext-0.10.40)
-dnl Copyright (C) 2000-2002 Free Software Foundation, Inc.
-dnl This file is free software, distributed under the terms of the GNU
-dnl General Public License.  As a special exception to the GNU General
-dnl Public License, this file may be distributed as part of a program
-dnl that contains a configuration script generated by Autoconf, under
-dnl the same distribution terms as the rest of that program.
-
-dnl From Bruno Haible.
-
-AC_DEFUN([AM_LANGINFO_CODESET],
-[
-  AC_CACHE_CHECK([for nl_langinfo and CODESET], am_cv_langinfo_codeset,
-    [AC_TRY_LINK([#include <langinfo.h>],
-      [char* cs = nl_langinfo(CODESET);],
-      am_cv_langinfo_codeset=yes,
-      am_cv_langinfo_codeset=no)
-    ])
-  if test $am_cv_langinfo_codeset = yes; then
-    AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
-      [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
-  fi
-])

m4/gettext.m4

@@ -1,587 +0,0 @@
-# gettext.m4 serial 17 (gettext-0.11.5)
-dnl Copyright (C) 1995-2002 Free Software Foundation, Inc.
-dnl This file is free software, distributed under the terms of the GNU
-dnl General Public License.  As a special exception to the GNU General
-dnl Public License, this file may be distributed as part of a program
-dnl that contains a configuration script generated by Autoconf, under
-dnl the same distribution terms as the rest of that program.
-dnl
-dnl This file can can be used in projects which are not available under
-dnl the GNU General Public License or the GNU Library General Public
-dnl License but which still want to provide support for the GNU gettext
-dnl functionality.
-dnl Please note that the actual code of the GNU gettext library is covered
-dnl by the GNU Library General Public License, and the rest of the GNU
-dnl gettext package package is covered by the GNU General Public License.
-dnl They are *not* in the public domain.
-
-dnl Authors:
-dnl   Ulrich Drepper <drepper@cygnus.com>, 1995-2000.
-dnl   Bruno Haible <haible@clisp.cons.org>, 2000-2002.
-
-dnl Macro to add for using GNU gettext.
-
-dnl Usage: AM_GNU_GETTEXT([INTLSYMBOL], [NEEDSYMBOL], [INTLDIR]).
-dnl INTLSYMBOL can be one of 'external', 'no-libtool', 'use-libtool'. The
-dnl    default (if it is not specified or empty) is 'no-libtool'.
-dnl    INTLSYMBOL should be 'external' for packages with no intl directory,
-dnl    and 'no-libtool' or 'use-libtool' for packages with an intl directory.
-dnl    If INTLSYMBOL is 'use-libtool', then a libtool library
-dnl    $(top_builddir)/intl/libintl.la will be created (shared and/or static,
-dnl    depending on --{enable,disable}-{shared,static} and on the presence of
-dnl    AM-DISABLE-SHARED). If INTLSYMBOL is 'no-libtool', a static library
-dnl    $(top_builddir)/intl/libintl.a will be created.
-dnl If NEEDSYMBOL is specified and is 'need-ngettext', then GNU gettext
-dnl    implementations (in libc or libintl) without the ngettext() function
-dnl    will be ignored.  If NEEDSYMBOL is specified and is
-dnl    'need-formatstring-macros', then GNU gettext implementations that don't
-dnl    support the ISO C 99 <inttypes.h> formatstring macros will be ignored.
-dnl INTLDIR is used to find the intl libraries.  If empty,
-dnl    the value `$(top_builddir)/intl/' is used.
-dnl
-dnl The result of the configuration is one of three cases:
-dnl 1) GNU gettext, as included in the intl subdirectory, will be compiled
-dnl    and used.
-dnl    Catalog format: GNU --> install in $(datadir)
-dnl    Catalog extension: .mo after installation, .gmo in source tree
-dnl 2) GNU gettext has been found in the system's C library.
-dnl    Catalog format: GNU --> install in $(datadir)
-dnl    Catalog extension: .mo after installation, .gmo in source tree
-dnl 3) No internationalization, always use English msgid.
-dnl    Catalog format: none
-dnl    Catalog extension: none
-dnl If INTLSYMBOL is 'external', only cases 2 and 3 can occur.
-dnl The use of .gmo is historical (it was needed to avoid overwriting the
-dnl GNU format catalogs when building on a platform with an X/Open gettext),
-dnl but we keep it in order not to force irrelevant filename changes on the
-dnl maintainers.
-dnl
-AC_DEFUN([AM_GNU_GETTEXT],
-[
-  dnl Argument checking.
-  ifelse([$1], [], , [ifelse([$1], [external], , [ifelse([$1], [no-libtool], , [ifelse([$1], [use-libtool], ,
-    [errprint([ERROR: invalid first argument to AM_GNU_GETTEXT
-])])])])])
-  ifelse([$2], [], , [ifelse([$2], [need-ngettext], , [ifelse([$2], [need-formatstring-macros], ,
-    [errprint([ERROR: invalid second argument to AM_GNU_GETTEXT
-])])])])
-  define(gt_included_intl, ifelse([$1], [external], [no], [yes]))
-  define(gt_libtool_suffix_prefix, ifelse([$1], [use-libtool], [l], []))
-
-  AC_REQUIRE([AM_PO_SUBDIRS])dnl
-  ifelse(gt_included_intl, yes, [
-    AC_REQUIRE([AM_INTL_SUBDIR])dnl
-  ])
-
-  dnl Prerequisites of AC_LIB_LINKFLAGS_BODY.
-  AC_REQUIRE([AC_LIB_PREPARE_PREFIX])
-  AC_REQUIRE([AC_LIB_RPATH])
-
-  dnl Sometimes libintl requires libiconv, so first search for libiconv.
-  dnl Ideally we would do this search only after the
-  dnl      if test "$USE_NLS" = "yes"; then
-  dnl        if test "$gt_cv_func_gnugettext_libc" != "yes"; then
-  dnl tests. But if configure.in invokes AM_ICONV after AM_GNU_GETTEXT
-  dnl the configure script would need to contain the same shell code
-  dnl again, outside any 'if'. There are two solutions:
-  dnl - Invoke AM_ICONV_LINKFLAGS_BODY here, outside any 'if'.
-  dnl - Control the expansions in more detail using AC_PROVIDE_IFELSE.
-  dnl Since AC_PROVIDE_IFELSE is only in autoconf >= 2.52 and not
-  dnl documented, we avoid it.
-  ifelse(gt_included_intl, yes, , [
-    AC_REQUIRE([AM_ICONV_LINKFLAGS_BODY])
-  ])
-
-  AC_MSG_CHECKING([whether NLS is requested])
-  dnl Default is enabled NLS
-  AC_ARG_ENABLE(nls,
-    [  --disable-nls           do not use Native Language Support],
-    USE_NLS=$enableval, USE_NLS=yes)
-  AC_MSG_RESULT($USE_NLS)
-  AC_SUBST(USE_NLS)
-
-  ifelse(gt_included_intl, yes, [
-    BUILD_INCLUDED_LIBINTL=no
-    USE_INCLUDED_LIBINTL=no
-  ])
-  LIBINTL=
-  LTLIBINTL=
-  POSUB=
-
-  dnl If we use NLS figure out what method
-  if test "$USE_NLS" = "yes"; then
-    gt_use_preinstalled_gnugettext=no
-    ifelse(gt_included_intl, yes, [
-      AC_MSG_CHECKING([whether included gettext is requested])
-      AC_ARG_WITH(included-gettext,
-        [  --with-included-gettext use the GNU gettext library included here],
-        nls_cv_force_use_gnu_gettext=$withval,
-        nls_cv_force_use_gnu_gettext=no)
-      AC_MSG_RESULT($nls_cv_force_use_gnu_gettext)
-
-      nls_cv_use_gnu_gettext="$nls_cv_force_use_gnu_gettext"
-      if test "$nls_cv_force_use_gnu_gettext" != "yes"; then
-    ])
-        dnl User does not insist on using GNU NLS library.  Figure out what
-        dnl to use.  If GNU gettext is available we use this.  Else we have
-        dnl to fall back to GNU NLS library.
-
-        dnl Add a version number to the cache macros.
-        define([gt_api_version], ifelse([$2], [need-formatstring-macros], 3, ifelse([$2], [need-ngettext], 2, 1)))
-        define([gt_cv_func_gnugettext_libc], [gt_cv_func_gnugettext]gt_api_version[_libc])
-        define([gt_cv_func_gnugettext_libintl], [gt_cv_func_gnugettext]gt_api_version[_libintl])
-
-        AC_CACHE_CHECK([for GNU gettext in libc], gt_cv_func_gnugettext_libc,
-         [AC_TRY_LINK([#include <libintl.h>
-]ifelse([$2], [need-formatstring-macros],
-[#ifndef __GNU_GETTEXT_SUPPORTED_REVISION
-#define __GNU_GETTEXT_SUPPORTED_REVISION(major) ((major) == 0 ? 0 : -1)
-#endif
-changequote(,)dnl
-typedef int array [2 * (__GNU_GETTEXT_SUPPORTED_REVISION(0) >= 1) - 1];
-changequote([,])dnl
-], [])[extern int _nl_msg_cat_cntr;
-extern int *_nl_domain_bindings;],
-            [bindtextdomain ("", "");
-return (int) gettext ("")]ifelse([$2], [need-ngettext], [ + (int) ngettext ("", "", 0)], [])[ + _nl_msg_cat_cntr + *_nl_domain_bindings],
-            gt_cv_func_gnugettext_libc=yes,
-            gt_cv_func_gnugettext_libc=no)])
-
-        if test "$gt_cv_func_gnugettext_libc" != "yes"; then
-          dnl Sometimes libintl requires libiconv, so first search for libiconv.
-          ifelse(gt_included_intl, yes, , [
-            AM_ICONV_LINK
-          ])
-          dnl Search for libintl and define LIBINTL, LTLIBINTL and INCINTL
-          dnl accordingly. Don't use AC_LIB_LINKFLAGS_BODY([intl],[iconv])
-          dnl because that would add "-liconv" to LIBINTL and LTLIBINTL
-          dnl even if libiconv doesn't exist.
-          AC_LIB_LINKFLAGS_BODY([intl])
-          AC_CACHE_CHECK([for GNU gettext in libintl],
-            gt_cv_func_gnugettext_libintl,
-           [gt_save_CPPFLAGS="$CPPFLAGS"
-            CPPFLAGS="$CPPFLAGS $INCINTL"
-            gt_save_LIBS="$LIBS"
-            LIBS="$LIBS $LIBINTL"
-            dnl Now see whether libintl exists and does not depend on libiconv.
-            AC_TRY_LINK([#include <libintl.h>
-]ifelse([$2], [need-formatstring-macros],
-[#ifndef __GNU_GETTEXT_SUPPORTED_REVISION
-#define __GNU_GETTEXT_SUPPORTED_REVISION(major) ((major) == 0 ? 0 : -1)
-#endif
-changequote(,)dnl
-typedef int array [2 * (__GNU_GETTEXT_SUPPORTED_REVISION(0) >= 1) - 1];
-changequote([,])dnl
-], [])[extern int _nl_msg_cat_cntr;
-extern
-#ifdef __cplusplus
-"C"
-#endif
-const char *_nl_expand_alias ();],
-              [bindtextdomain ("", "");
-return (int) gettext ("")]ifelse([$2], [need-ngettext], [ + (int) ngettext ("", "", 0)], [])[ + _nl_msg_cat_cntr + *_nl_expand_alias (0)],
-              gt_cv_func_gnugettext_libintl=yes,
-              gt_cv_func_gnugettext_libintl=no)
-            dnl Now see whether libintl exists and depends on libiconv.
-            if test "$gt_cv_func_gnugettext_libintl" != yes && test -n "$LIBICONV"; then
-              LIBS="$LIBS $LIBICONV"
-              AC_TRY_LINK([#include <libintl.h>
-]ifelse([$2], [need-formatstring-macros],
-[#ifndef __GNU_GETTEXT_SUPPORTED_REVISION
-#define __GNU_GETTEXT_SUPPORTED_REVISION(major) ((major) == 0 ? 0 : -1)
-#endif
-changequote(,)dnl
-typedef int array [2 * (__GNU_GETTEXT_SUPPORTED_REVISION(0) >= 1) - 1];
-changequote([,])dnl
-], [])[extern int _nl_msg_cat_cntr;
-extern
-#ifdef __cplusplus
-"C"
-#endif
-const char *_nl_expand_alias ();],
-                [bindtextdomain ("", "");
-return (int) gettext ("")]ifelse([$2], [need-ngettext], [ + (int) ngettext ("", "", 0)], [])[ + _nl_msg_cat_cntr + *_nl_expand_alias (0)],
-               [LIBINTL="$LIBINTL $LIBICONV"
-                LTLIBINTL="$LTLIBINTL $LTLIBICONV"
-                gt_cv_func_gnugettext_libintl=yes
-               ])
-            fi
-            CPPFLAGS="$gt_save_CPPFLAGS"
-            LIBS="$gt_save_LIBS"])
-        fi
-
-        dnl If an already present or preinstalled GNU gettext() is found,
-        dnl use it.  But if this macro is used in GNU gettext, and GNU
-        dnl gettext is already preinstalled in libintl, we update this
-        dnl libintl.  (Cf. the install rule in intl/Makefile.in.)
-        if test "$gt_cv_func_gnugettext_libc" = "yes" \
-           || { test "$gt_cv_func_gnugettext_libintl" = "yes" \
-                && test "$PACKAGE" != gettext; }; then
-          gt_use_preinstalled_gnugettext=yes
-        else
-          dnl Reset the values set by searching for libintl.
-          LIBINTL=
-          LTLIBINTL=
-          INCINTL=
-        fi
-
-    ifelse(gt_included_intl, yes, [
-        if test "$gt_use_preinstalled_gnugettext" != "yes"; then
-          dnl GNU gettext is not found in the C library.
-          dnl Fall back on included GNU gettext library.
-          nls_cv_use_gnu_gettext=yes
-        fi
-      fi
-
-      if test "$nls_cv_use_gnu_gettext" = "yes"; then
-        dnl Mark actions used to generate GNU NLS library.
-        INTLOBJS="\$(GETTOBJS)"
-        BUILD_INCLUDED_LIBINTL=yes
-        USE_INCLUDED_LIBINTL=yes
-        LIBINTL="ifelse([$3],[],\${top_builddir}/intl,[$3])/libintl.[]gt_libtool_suffix_prefix[]a $LIBICONV"
-        LTLIBINTL="ifelse([$3],[],\${top_builddir}/intl,[$3])/libintl.[]gt_libtool_suffix_prefix[]a $LTLIBICONV"
-        LIBS=`echo " $LIBS " | sed -e 's/ -lintl / /' -e 's/^ //' -e 's/ $//'`
-      fi
-
-      if test "$gt_use_preinstalled_gnugettext" = "yes" \
-         || test "$nls_cv_use_gnu_gettext" = "yes"; then
-        dnl Mark actions to use GNU gettext tools.
-        CATOBJEXT=.gmo
-      fi
-    ])
-
-    if test "$gt_use_preinstalled_gnugettext" = "yes" \
-       || test "$nls_cv_use_gnu_gettext" = "yes"; then
-      AC_DEFINE(ENABLE_NLS, 1,
-        [Define to 1 if translation of program messages to the user's native language
-   is requested.])
-    else
-      USE_NLS=no
-    fi
-  fi
-
-  if test "$USE_NLS" = "yes"; then
-
-    if test "$gt_use_preinstalled_gnugettext" = "yes"; then
-      if test "$gt_cv_func_gnugettext_libintl" = "yes"; then
-        AC_MSG_CHECKING([how to link with libintl])
-        AC_MSG_RESULT([$LIBINTL])
-        AC_LIB_APPENDTOVAR([CPPFLAGS], [$INCINTL])
-      fi
-
-      dnl For backward compatibility. Some packages may be using this.
-      AC_DEFINE(HAVE_GETTEXT, 1,
-       [Define if the GNU gettext() function is already present or preinstalled.])
-      AC_DEFINE(HAVE_DCGETTEXT, 1,
-       [Define if the GNU dcgettext() function is already present or preinstalled.])
-    fi
-
-    dnl We need to process the po/ directory.
-    POSUB=po
-  fi
-
-  ifelse(gt_included_intl, yes, [
-    dnl If this is used in GNU gettext we have to set BUILD_INCLUDED_LIBINTL
-    dnl to 'yes' because some of the testsuite requires it.
-    if test "$PACKAGE" = gettext; then
-      BUILD_INCLUDED_LIBINTL=yes
-    fi
-
-    dnl Make all variables we use known to autoconf.
-    AC_SUBST(BUILD_INCLUDED_LIBINTL)
-    AC_SUBST(USE_INCLUDED_LIBINTL)
-    AC_SUBST(CATOBJEXT)
-    AC_SUBST(INTLOBJS)
-
-    dnl For backward compatibility. Some configure.ins may be using this.
-    nls_cv_header_intl=
-    nls_cv_header_libgt=
-
-    dnl For backward compatibility. Some Makefiles may be using this.
-    DATADIRNAME=share
-    AC_SUBST(DATADIRNAME)
-
-    dnl For backward compatibility. Some Makefiles may be using this.
-    INSTOBJEXT=.mo
-    AC_SUBST(INSTOBJEXT)
-
-    dnl For backward compatibility. Some Makefiles may be using this.
-    GENCAT=gencat
-    AC_SUBST(GENCAT)
-
-    dnl Enable libtool support if the surrounding package wishes it.
-    INTL_LIBTOOL_SUFFIX_PREFIX=gt_libtool_suffix_prefix
-    AC_SUBST(INTL_LIBTOOL_SUFFIX_PREFIX)
-  ])
-
-  dnl For backward compatibility. Some Makefiles may be using this.
-  INTLLIBS="$LIBINTL"
-  AC_SUBST(INTLLIBS)
-
-  dnl Make all documented variables known to autoconf.
-  AC_SUBST(LIBINTL)
-  AC_SUBST(LTLIBINTL)
-  AC_SUBST(POSUB)
-])
-
-
-dnl Checks for all prerequisites of the po subdirectory,
-dnl except for USE_NLS.
-AC_DEFUN([AM_PO_SUBDIRS],
-[
-  AC_REQUIRE([AC_PROG_MAKE_SET])dnl
-  AC_REQUIRE([AC_PROG_INSTALL])dnl
-  AC_REQUIRE([AM_MKINSTALLDIRS])dnl
-
-  dnl Perform the following tests also if --disable-nls has been given,
-  dnl because they are needed for "make dist" to work.
-
-  dnl Search for GNU msgfmt in the PATH.
-  dnl The first test excludes Solaris msgfmt and early GNU msgfmt versions.
-  dnl The second test excludes FreeBSD msgfmt.
-  AM_PATH_PROG_WITH_TEST(MSGFMT, msgfmt,
-    [$ac_dir/$ac_word --statistics /dev/null >/dev/null 2>&1 &&
-     (if $ac_dir/$ac_word --statistics /dev/null 2>&1 >/dev/null | grep usage >/dev/null; then exit 1; else exit 0; fi)],
-    :)
-  AC_PATH_PROG(GMSGFMT, gmsgfmt, $MSGFMT)
-
-  dnl Search for GNU xgettext 0.11 or newer in the PATH.
-  dnl The first test excludes Solaris xgettext and early GNU xgettext versions.
-  dnl The second test excludes FreeBSD xgettext.
-  AM_PATH_PROG_WITH_TEST(XGETTEXT, xgettext,
-    [$ac_dir/$ac_word --omit-header --copyright-holder= /dev/null >/dev/null 2>&1 &&
-     (if $ac_dir/$ac_word --omit-header --copyright-holder= /dev/null 2>&1 >/dev/null | grep usage >/dev/null; then exit 1; else exit 0; fi)],
-    :)
-  dnl Remove leftover from FreeBSD xgettext call.
-  rm -f messages.po
-
-  dnl Search for GNU msgmerge 0.11 or newer in the PATH.
-  AM_PATH_PROG_WITH_TEST(MSGMERGE, msgmerge,
-    [$ac_dir/$ac_word --update -q /dev/null /dev/null >/dev/null 2>&1], :)
-
-  dnl This could go away some day; the PATH_PROG_WITH_TEST already does it.
-  dnl Test whether we really found GNU msgfmt.
-  if test "$GMSGFMT" != ":"; then
-    dnl If it is no GNU msgfmt we define it as : so that the
-    dnl Makefiles still can work.
-    if $GMSGFMT --statistics /dev/null >/dev/null 2>&1 &&
-       (if $GMSGFMT --statistics /dev/null 2>&1 >/dev/null | grep usage >/dev/null; then exit 1; else exit 0; fi); then
-      : ;
-    else
-      GMSGFMT=`echo "$GMSGFMT" | sed -e 's,^.*/,,'`
-      AC_MSG_RESULT(
-        [found $GMSGFMT program is not GNU msgfmt; ignore it])
-      GMSGFMT=":"
-    fi
-  fi
-
-  dnl This could go away some day; the PATH_PROG_WITH_TEST already does it.
-  dnl Test whether we really found GNU xgettext.
-  if test "$XGETTEXT" != ":"; then
-    dnl If it is no GNU xgettext we define it as : so that the
-    dnl Makefiles still can work.
-    if $XGETTEXT --omit-header --copyright-holder= /dev/null >/dev/null 2>&1 &&
-       (if $XGETTEXT --omit-header --copyright-holder= /dev/null 2>&1 >/dev/null | grep usage >/dev/null; then exit 1; else exit 0; fi); then
-      : ;
-    else
-      AC_MSG_RESULT(
-        [found xgettext program is not GNU xgettext; ignore it])
-      XGETTEXT=":"
-    fi
-    dnl Remove leftover from FreeBSD xgettext call.
-    rm -f messages.po
-  fi
-
-  AC_OUTPUT_COMMANDS([
-    for ac_file in $CONFIG_FILES; do
-      # Support "outfile[:infile[:infile...]]"
-      case "$ac_file" in
-        *:*) ac_file=`echo "$ac_file"|sed 's%:.*%%'` ;;
-      esac
-      # PO directories have a Makefile.in generated from Makefile.in.in.
-      case "$ac_file" in */Makefile.in)
-        # Adjust a relative srcdir.
-        ac_dir=`echo "$ac_file"|sed 's%/[^/][^/]*$%%'`
-        ac_dir_suffix="/`echo "$ac_dir"|sed 's%^\./%%'`"
-        ac_dots=`echo "$ac_dir_suffix"|sed 's%/[^/]*%../%g'`
-        # In autoconf-2.13 it is called $ac_given_srcdir.
-        # In autoconf-2.50 it is called $srcdir.
-        test -n "$ac_given_srcdir" || ac_given_srcdir="$srcdir"
-        case "$ac_given_srcdir" in
-          .)  top_srcdir=`echo $ac_dots|sed 's%/$%%'` ;;
-          /*) top_srcdir="$ac_given_srcdir" ;;
-          *)  top_srcdir="$ac_dots$ac_given_srcdir" ;;
-        esac
-        if test -f "$ac_given_srcdir/$ac_dir/POTFILES.in"; then
-          rm -f "$ac_dir/POTFILES"
-          test -n "$as_me" && echo "$as_me: creating $ac_dir/POTFILES" || echo "creating $ac_dir/POTFILES"
-          cat "$ac_given_srcdir/$ac_dir/POTFILES.in" | sed -e "/^#/d" -e "/^[ 	]*\$/d" -e "s,.*,     $top_srcdir/& \\\\," | sed -e "\$s/\(.*\) \\\\/\1/" > "$ac_dir/POTFILES"
-          # ALL_LINGUAS, POFILES, GMOFILES, UPDATEPOFILES, DUMMYPOFILES depend
-          # on $ac_dir but don't depend on user-specified configuration
-          # parameters.
-          if test -f "$ac_given_srcdir/$ac_dir/LINGUAS"; then
-            # The LINGUAS file contains the set of available languages.
-            if test -n "$ALL_LINGUAS"; then
-              test -n "$as_me" && echo "$as_me: setting ALL_LINGUAS in configure.in is obsolete" || echo "setting ALL_LINGUAS in configure.in is obsolete"
-            fi
-            ALL_LINGUAS_=`sed -e "/^#/d" "$ac_given_srcdir/$ac_dir/LINGUAS"`
-            # Hide the ALL_LINGUAS assigment from automake.
-            eval 'ALL_LINGUAS''=$ALL_LINGUAS_'
-          fi
-          case "$ac_given_srcdir" in
-            .) srcdirpre= ;;
-            *) srcdirpre='$(srcdir)/' ;;
-          esac
-          POFILES=
-          GMOFILES=
-          UPDATEPOFILES=
-          DUMMYPOFILES=
-          for lang in $ALL_LINGUAS; do
-            POFILES="$POFILES $srcdirpre$lang.po"
-            GMOFILES="$GMOFILES $srcdirpre$lang.gmo"
-            UPDATEPOFILES="$UPDATEPOFILES $lang.po-update"
-            DUMMYPOFILES="$DUMMYPOFILES $lang.nop"
-          done
-          # CATALOGS depends on both $ac_dir and the user's LINGUAS
-          # environment variable.
-          INST_LINGUAS=
-          if test -n "$ALL_LINGUAS"; then
-            for presentlang in $ALL_LINGUAS; do
-              useit=no
-              if test "%UNSET%" != "$LINGUAS"; then
-                desiredlanguages="$LINGUAS"
-              else
-                desiredlanguages="$ALL_LINGUAS"
-              fi
-              for desiredlang in $desiredlanguages; do
-                # Use the presentlang catalog if desiredlang is
-                #   a. equal to presentlang, or
-                #   b. a variant of presentlang (because in this case,
-                #      presentlang can be used as a fallback for messages
-                #      which are not translated in the desiredlang catalog).
-                case "$desiredlang" in
-                  "$presentlang"*) useit=yes;;
-                esac
-              done
-              if test $useit = yes; then
-                INST_LINGUAS="$INST_LINGUAS $presentlang"
-              fi
-            done
-          fi
-          CATALOGS=
-          if test -n "$INST_LINGUAS"; then
-            for lang in $INST_LINGUAS; do
-              CATALOGS="$CATALOGS $lang.gmo"
-            done
-          fi
-          test -n "$as_me" && echo "$as_me: creating $ac_dir/Makefile" || echo "creating $ac_dir/Makefile"
-          sed -e "/^POTFILES =/r $ac_dir/POTFILES" -e "/^# Makevars/r $ac_given_srcdir/$ac_dir/Makevars" -e "s|@POFILES@|$POFILES|g" -e "s|@GMOFILES@|$GMOFILES|g" -e "s|@UPDATEPOFILES@|$UPDATEPOFILES|g" -e "s|@DUMMYPOFILES@|$DUMMYPOFILES|g" -e "s|@CATALOGS@|$CATALOGS|g" "$ac_dir/Makefile.in" > "$ac_dir/Makefile"
-          for f in "$ac_given_srcdir/$ac_dir"/Rules-*; do
-            if test -f "$f"; then
-              case "$f" in
-                *.orig | *.bak | *~) ;;
-                *) cat "$f" >> "$ac_dir/Makefile" ;;
-              esac
-            fi
-          done
-        fi
-        ;;
-      esac
-    done],
-   [# Capture the value of obsolete ALL_LINGUAS because we need it to compute
-    # POFILES, GMOFILES, UPDATEPOFILES, DUMMYPOFILES, CATALOGS. But hide it
-    # from automake.
-    eval 'ALL_LINGUAS''="$ALL_LINGUAS"'
-    # Capture the value of LINGUAS because we need it to compute CATALOGS.
-    LINGUAS="${LINGUAS-%UNSET%}"
-   ])
-])
-
-
-dnl Checks for all prerequisites of the intl subdirectory,
-dnl except for INTL_LIBTOOL_SUFFIX_PREFIX (and possibly LIBTOOL), INTLOBJS,
-dnl            USE_INCLUDED_LIBINTL, BUILD_INCLUDED_LIBINTL.
-AC_DEFUN([AM_INTL_SUBDIR],
-[
-  AC_REQUIRE([AC_PROG_INSTALL])dnl
-  AC_REQUIRE([AM_MKINSTALLDIRS])dnl
-  AC_REQUIRE([AC_PROG_CC])dnl
-  AC_REQUIRE([AC_CANONICAL_HOST])dnl
-  AC_REQUIRE([AC_PROG_RANLIB])dnl
-  AC_REQUIRE([AC_ISC_POSIX])dnl
-  AC_REQUIRE([AC_HEADER_STDC])dnl
-  AC_REQUIRE([AC_C_CONST])dnl
-  AC_REQUIRE([AC_C_INLINE])dnl
-  AC_REQUIRE([AC_TYPE_OFF_T])dnl
-  AC_REQUIRE([AC_TYPE_SIZE_T])dnl
-  AC_REQUIRE([AC_FUNC_ALLOCA])dnl
-  AC_REQUIRE([AC_FUNC_MMAP])dnl
-  AC_REQUIRE([jm_GLIBC21])dnl
-  AC_REQUIRE([gt_INTDIV0])dnl
-  AC_REQUIRE([jm_AC_TYPE_UINTMAX_T])dnl
-  AC_REQUIRE([gt_HEADER_INTTYPES_H])dnl
-  AC_REQUIRE([gt_INTTYPES_PRI])dnl
-
-  AC_CHECK_HEADERS([argz.h limits.h locale.h nl_types.h malloc.h stddef.h \
-stdlib.h string.h unistd.h sys/param.h])
-  AC_CHECK_FUNCS([feof_unlocked fgets_unlocked getc_unlocked getcwd getegid \
-geteuid getgid getuid mempcpy munmap putenv setenv setlocale stpcpy \
-strcasecmp strdup strtoul tsearch __argz_count __argz_stringify __argz_next])
-
-  AM_ICONV
-  AM_LANGINFO_CODESET
-  if test $ac_cv_header_locale_h = yes; then
-    AM_LC_MESSAGES
-  fi
-
-  dnl intl/plural.c is generated from intl/plural.y. It requires bison,
-  dnl because plural.y uses bison specific features. It requires at least
-  dnl bison-1.26 because earlier versions generate a plural.c that doesn't
-  dnl compile.
-  dnl bison is only needed for the maintainer (who touches plural.y). But in
-  dnl order to avoid separate Makefiles or --enable-maintainer-mode, we put
-  dnl the rule in general Makefile. Now, some people carelessly touch the
-  dnl files or have a broken "make" program, hence the plural.c rule will
-  dnl sometimes fire. To avoid an error, defines BISON to ":" if it is not
-  dnl present or too old.
-  AC_CHECK_PROGS([INTLBISON], [bison])
-  if test -z "$INTLBISON"; then
-    ac_verc_fail=yes
-  else
-    dnl Found it, now check the version.
-    AC_MSG_CHECKING([version of bison])
-changequote(<<,>>)dnl
-    ac_prog_version=`$INTLBISON --version 2>&1 | sed -n 's/^.*GNU Bison.* \([0-9]*\.[0-9.]*\).*$/\1/p'`
-    case $ac_prog_version in
-      '') ac_prog_version="v. ?.??, bad"; ac_verc_fail=yes;;
-      1.2[6-9]* | 1.[3-9][0-9]* | [2-9].*)
-changequote([,])dnl
-         ac_prog_version="$ac_prog_version, ok"; ac_verc_fail=no;;
-      *) ac_prog_version="$ac_prog_version, bad"; ac_verc_fail=yes;;
-    esac
-    AC_MSG_RESULT([$ac_prog_version])
-  fi
-  if test $ac_verc_fail = yes; then
-    INTLBISON=:
-  fi
-])
-
-
-AC_DEFUN([AM_MKINSTALLDIRS],
-[
-  dnl If the AC_CONFIG_AUX_DIR macro for autoconf is used we possibly
-  dnl find the mkinstalldirs script in another subdir but $(top_srcdir).
-  dnl Try to locate is.
-  MKINSTALLDIRS=
-  if test -n "$ac_aux_dir"; then
-    MKINSTALLDIRS="$ac_aux_dir/mkinstalldirs"
-  fi
-  if test -z "$MKINSTALLDIRS"; then
-    MKINSTALLDIRS="\$(top_srcdir)/mkinstalldirs"
-  fi
-  AC_SUBST(MKINSTALLDIRS)
-])
-
-
-dnl Usage: AM_GNU_GETTEXT_VERSION([gettext-version])
-AC_DEFUN([AM_GNU_GETTEXT_VERSION], [])

m4/glib-2.0.m4

@@ -1,215 +0,0 @@
-# Configure paths for GLIB
-# Owen Taylor     1997-2001
-
-dnl AM_PATH_GLIB_2_0([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND [, MODULES]]]])
-dnl Test for GLIB, and define GLIB_CFLAGS and GLIB_LIBS, if gmodule, gobject or 
-dnl gthread is specified in MODULES, pass to pkg-config
-dnl
-AC_DEFUN([AM_PATH_GLIB_2_0],
-[dnl 
-dnl Get the cflags and libraries from pkg-config
-dnl
-AC_ARG_ENABLE(glibtest, [  --disable-glibtest      do not try to compile and run a test GLIB program],
-		    , enable_glibtest=yes)
-
-  pkg_config_args=glib-2.0
-  for module in . $4
-  do
-      case "$module" in
-         gmodule) 
-             pkg_config_args="$pkg_config_args gmodule-2.0"
-         ;;
-         gmodule-no-export) 
-             pkg_config_args="$pkg_config_args gmodule-no-export-2.0"
-         ;;
-         gobject) 
-             pkg_config_args="$pkg_config_args gobject-2.0"
-         ;;
-         gthread) 
-             pkg_config_args="$pkg_config_args gthread-2.0"
-         ;;
-      esac
-  done
-
-  AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
-
-  no_glib=""
-
-  if test x$PKG_CONFIG != xno ; then
-    if $PKG_CONFIG --atleast-pkgconfig-version 0.7 ; then
-      :
-    else
-      echo *** pkg-config too old; version 0.7 or better required.
-      no_glib=yes
-      PKG_CONFIG=no
-    fi
-  else
-    no_glib=yes
-  fi
-
-  min_glib_version=ifelse([$1], ,2.0.0,$1)
-  AC_MSG_CHECKING(for GLIB - version >= $min_glib_version)
-
-  if test x$PKG_CONFIG != xno ; then
-    ## don't try to run the test against uninstalled libtool libs
-    if $PKG_CONFIG --uninstalled $pkg_config_args; then
-	  echo "Will use uninstalled version of GLib found in PKG_CONFIG_PATH"
-	  enable_glibtest=no
-    fi
-
-    if $PKG_CONFIG --atleast-version $min_glib_version $pkg_config_args; then
-	  :
-    else
-	  no_glib=yes
-    fi
-  fi
-
-  if test x"$no_glib" = x ; then
-    GLIB_GENMARSHAL=`$PKG_CONFIG --variable=glib_genmarshal glib-2.0`
-    GOBJECT_QUERY=`$PKG_CONFIG --variable=gobject_query glib-2.0`
-    GLIB_MKENUMS=`$PKG_CONFIG --variable=glib_mkenums glib-2.0`
-
-    GLIB_CFLAGS=`$PKG_CONFIG --cflags $pkg_config_args`
-    GLIB_LIBS=`$PKG_CONFIG --libs $pkg_config_args`
-    glib_config_major_version=`$PKG_CONFIG --modversion glib-2.0 | \
-           sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
-    glib_config_minor_version=`$PKG_CONFIG --modversion glib-2.0 | \
-           sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
-    glib_config_micro_version=`$PKG_CONFIG --modversion glib-2.0 | \
-           sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
-    if test "x$enable_glibtest" = "xyes" ; then
-      ac_save_CFLAGS="$CFLAGS"
-      ac_save_LIBS="$LIBS"
-      CFLAGS="$CFLAGS $GLIB_CFLAGS"
-      LIBS="$GLIB_LIBS $LIBS"
-dnl
-dnl Now check if the installed GLIB is sufficiently new. (Also sanity
-dnl checks the results of pkg-config to some extent)
-dnl
-      rm -f conf.glibtest
-      AC_TRY_RUN([
-#include <glib.h>
-#include <stdio.h>
-#include <stdlib.h>
-
-int 
-main ()
-{
-  int major, minor, micro;
-  char *tmp_version;
-
-  system ("touch conf.glibtest");
-
-  /* HP/UX 9 (%@#!) writes to sscanf strings */
-  tmp_version = g_strdup("$min_glib_version");
-  if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, &micro) != 3) {
-     printf("%s, bad version string\n", "$min_glib_version");
-     exit(1);
-   }
-
-  if ((glib_major_version != $glib_config_major_version) ||
-      (glib_minor_version != $glib_config_minor_version) ||
-      (glib_micro_version != $glib_config_micro_version))
-    {
-      printf("\n*** 'pkg-config --modversion glib-2.0' returned %d.%d.%d, but GLIB (%d.%d.%d)\n", 
-             $glib_config_major_version, $glib_config_minor_version, $glib_config_micro_version,
-             glib_major_version, glib_minor_version, glib_micro_version);
-      printf ("*** was found! If pkg-config was correct, then it is best\n");
-      printf ("*** to remove the old version of GLib. You may also be able to fix the error\n");
-      printf("*** by modifying your LD_LIBRARY_PATH enviroment variable, or by editing\n");
-      printf("*** /etc/ld.so.conf. Make sure you have run ldconfig if that is\n");
-      printf("*** required on your system.\n");
-      printf("*** If pkg-config was wrong, set the environment variable PKG_CONFIG_PATH\n");
-      printf("*** to point to the correct configuration files\n");
-    } 
-  else if ((glib_major_version != GLIB_MAJOR_VERSION) ||
-	   (glib_minor_version != GLIB_MINOR_VERSION) ||
-           (glib_micro_version != GLIB_MICRO_VERSION))
-    {
-      printf("*** GLIB header files (version %d.%d.%d) do not match\n",
-	     GLIB_MAJOR_VERSION, GLIB_MINOR_VERSION, GLIB_MICRO_VERSION);
-      printf("*** library (version %d.%d.%d)\n",
-	     glib_major_version, glib_minor_version, glib_micro_version);
-    }
-  else
-    {
-      if ((glib_major_version > major) ||
-        ((glib_major_version == major) && (glib_minor_version > minor)) ||
-        ((glib_major_version == major) && (glib_minor_version == minor) && (glib_micro_version >= micro)))
-      {
-        return 0;
-       }
-     else
-      {
-        printf("\n*** An old version of GLIB (%d.%d.%d) was found.\n",
-               glib_major_version, glib_minor_version, glib_micro_version);
-        printf("*** You need a version of GLIB newer than %d.%d.%d. The latest version of\n",
-	       major, minor, micro);
-        printf("*** GLIB is always available from ftp://ftp.gtk.org.\n");
-        printf("***\n");
-        printf("*** If you have already installed a sufficiently new version, this error\n");
-        printf("*** probably means that the wrong copy of the pkg-config shell script is\n");
-        printf("*** being found. The easiest way to fix this is to remove the old version\n");
-        printf("*** of GLIB, but you can also set the PKG_CONFIG environment to point to the\n");
-        printf("*** correct copy of pkg-config. (In this case, you will have to\n");
-        printf("*** modify your LD_LIBRARY_PATH enviroment variable, or edit /etc/ld.so.conf\n");
-        printf("*** so that the correct libraries are found at run-time))\n");
-      }
-    }
-  return 1;
-}
-],, no_glib=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
-       CFLAGS="$ac_save_CFLAGS"
-       LIBS="$ac_save_LIBS"
-     fi
-  fi
-  if test "x$no_glib" = x ; then
-     AC_MSG_RESULT(yes (version $glib_config_major_version.$glib_config_minor_version.$glib_config_micro_version))
-     ifelse([$2], , :, [$2])     
-  else
-     AC_MSG_RESULT(no)
-     if test "$PKG_CONFIG" = "no" ; then
-       echo "*** A new enough version of pkg-config was not found."
-       echo "*** See http://www.freedesktop.org/software/pkgconfig/"
-     else
-       if test -f conf.glibtest ; then
-        :
-       else
-          echo "*** Could not run GLIB test program, checking why..."
-          ac_save_CFLAGS="$CFLAGS"
-          ac_save_LIBS="$LIBS"
-          CFLAGS="$CFLAGS $GLIB_CFLAGS"
-          LIBS="$LIBS $GLIB_LIBS"
-          AC_TRY_LINK([
-#include <glib.h>
-#include <stdio.h>
-],      [ return ((glib_major_version) || (glib_minor_version) || (glib_micro_version)); ],
-        [ echo "*** The test program compiled, but did not run. This usually means"
-          echo "*** that the run-time linker is not finding GLIB or finding the wrong"
-          echo "*** version of GLIB. If it is not finding GLIB, you'll need to set your"
-          echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
-          echo "*** to the installed location  Also, make sure you have run ldconfig if that"
-          echo "*** is required on your system"
-	  echo "***"
-          echo "*** If you have an old version installed, it is best to remove it, although"
-          echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH" ],
-        [ echo "*** The test program failed to compile or link. See the file config.log for the"
-          echo "*** exact error that occured. This usually means GLIB is incorrectly installed."])
-          CFLAGS="$ac_save_CFLAGS"
-          LIBS="$ac_save_LIBS"
-       fi
-     fi
-     GLIB_CFLAGS=""
-     GLIB_LIBS=""
-     GLIB_GENMARSHAL=""
-     GOBJECT_QUERY=""
-     GLIB_MKENUMS=""
-     ifelse([$3], , :, [$3])
-  fi
-  AC_SUBST(GLIB_CFLAGS)
-  AC_SUBST(GLIB_LIBS)
-  AC_SUBST(GLIB_GENMARSHAL)
-  AC_SUBST(GOBJECT_QUERY)
-  AC_SUBST(GLIB_MKENUMS)
-  rm -f conf.glibtest
-])

m4/glibc21.m4

@@ -1,32 +0,0 @@
-# glibc21.m4 serial 2 (fileutils-4.1.3, gettext-0.10.40)
-dnl Copyright (C) 2000-2002 Free Software Foundation, Inc.
-dnl This file is free software, distributed under the terms of the GNU
-dnl General Public License.  As a special exception to the GNU General
-dnl Public License, this file may be distributed as part of a program
-dnl that contains a configuration script generated by Autoconf, under
-dnl the same distribution terms as the rest of that program.
-
-# Test for the GNU C Library, version 2.1 or newer.
-# From Bruno Haible.
-
-AC_DEFUN([jm_GLIBC21],
-  [
-    AC_CACHE_CHECK(whether we are using the GNU C Library 2.1 or newer,
-      ac_cv_gnu_library_2_1,
-      [AC_EGREP_CPP([Lucky GNU user],
-	[
-#include <features.h>
-#ifdef __GNU_LIBRARY__
- #if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1) || (__GLIBC__ > 2)
-  Lucky GNU user
- #endif
-#endif
-	],
-	ac_cv_gnu_library_2_1=yes,
-	ac_cv_gnu_library_2_1=no)
-      ]
-    )
-    AC_SUBST(GLIBC21)
-    GLIBC21="$ac_cv_gnu_library_2_1"
-  ]
-)

m4/iconv.m4

@@ -1,103 +0,0 @@
-# iconv.m4 serial AM4 (gettext-0.11.3)
-dnl Copyright (C) 2000-2002 Free Software Foundation, Inc.
-dnl This file is free software, distributed under the terms of the GNU
-dnl General Public License.  As a special exception to the GNU General
-dnl Public License, this file may be distributed as part of a program
-dnl that contains a configuration script generated by Autoconf, under
-dnl the same distribution terms as the rest of that program.
-
-dnl From Bruno Haible.
-
-AC_DEFUN([AM_ICONV_LINKFLAGS_BODY],
-[
-  dnl Prerequisites of AC_LIB_LINKFLAGS_BODY.
-  AC_REQUIRE([AC_LIB_PREPARE_PREFIX])
-  AC_REQUIRE([AC_LIB_RPATH])
-
-  dnl Search for libiconv and define LIBICONV, LTLIBICONV and INCICONV
-  dnl accordingly.
-  AC_LIB_LINKFLAGS_BODY([iconv])
-])
-
-AC_DEFUN([AM_ICONV_LINK],
-[
-  dnl Some systems have iconv in libc, some have it in libiconv (OSF/1 and
-  dnl those with the standalone portable GNU libiconv installed).
-
-  dnl Search for libiconv and define LIBICONV, LTLIBICONV and INCICONV
-  dnl accordingly.
-  AC_REQUIRE([AM_ICONV_LINKFLAGS_BODY])
-
-  dnl Add $INCICONV to CPPFLAGS before performing the following checks,
-  dnl because if the user has installed libiconv and not disabled its use
-  dnl via --without-libiconv-prefix, he wants to use it. The first
-  dnl AC_TRY_LINK will then fail, the second AC_TRY_LINK will succeed.
-  am_save_CPPFLAGS="$CPPFLAGS"
-  AC_LIB_APPENDTOVAR([CPPFLAGS], [$INCICONV])
-
-  AC_CACHE_CHECK(for iconv, am_cv_func_iconv, [
-    am_cv_func_iconv="no, consider installing GNU libiconv"
-    am_cv_lib_iconv=no
-    AC_TRY_LINK([#include <stdlib.h>
-#include <iconv.h>],
-      [iconv_t cd = iconv_open("","");
-       iconv(cd,NULL,NULL,NULL,NULL);
-       iconv_close(cd);],
-      am_cv_func_iconv=yes)
-    if test "$am_cv_func_iconv" != yes; then
-      am_save_LIBS="$LIBS"
-      LIBS="$LIBS $LIBICONV"
-      AC_TRY_LINK([#include <stdlib.h>
-#include <iconv.h>],
-        [iconv_t cd = iconv_open("","");
-         iconv(cd,NULL,NULL,NULL,NULL);
-         iconv_close(cd);],
-        am_cv_lib_iconv=yes
-        am_cv_func_iconv=yes)
-      LIBS="$am_save_LIBS"
-    fi
-  ])
-  if test "$am_cv_func_iconv" = yes; then
-    AC_DEFINE(HAVE_ICONV, 1, [Define if you have the iconv() function.])
-  fi
-  if test "$am_cv_lib_iconv" = yes; then
-    AC_MSG_CHECKING([how to link with libiconv])
-    AC_MSG_RESULT([$LIBICONV])
-  else
-    dnl If $LIBICONV didn't lead to a usable library, we don't need $INCICONV
-    dnl either.
-    CPPFLAGS="$am_save_CPPFLAGS"
-    LIBICONV=
-    LTLIBICONV=
-  fi
-  AC_SUBST(LIBICONV)
-  AC_SUBST(LTLIBICONV)
-])
-
-AC_DEFUN([AM_ICONV],
-[
-  AM_ICONV_LINK
-  if test "$am_cv_func_iconv" = yes; then
-    AC_MSG_CHECKING([for iconv declaration])
-    AC_CACHE_VAL(am_cv_proto_iconv, [
-      AC_TRY_COMPILE([
-#include <stdlib.h>
-#include <iconv.h>
-extern
-#ifdef __cplusplus
-"C"
-#endif
-#if defined(__STDC__) || defined(__cplusplus)
-size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);
-#else
-size_t iconv();
-#endif
-], [], am_cv_proto_iconv_arg1="", am_cv_proto_iconv_arg1="const")
-      am_cv_proto_iconv="extern size_t iconv (iconv_t cd, $am_cv_proto_iconv_arg1 char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);"])
-    am_cv_proto_iconv=`echo "[$]am_cv_proto_iconv" | tr -s ' ' | sed -e 's/( /(/'`
-    AC_MSG_RESULT([$]{ac_t:-
-         }[$]am_cv_proto_iconv)
-    AC_DEFINE_UNQUOTED(ICONV_CONST, $am_cv_proto_iconv_arg1,
-      [Define as const if the declaration of iconv() needs const.])
-  fi
-])

m4/intdiv0.m4

@@ -1,72 +0,0 @@
-# intdiv0.m4 serial 1 (gettext-0.11.3)
-dnl Copyright (C) 2002 Free Software Foundation, Inc.
-dnl This file is free software, distributed under the terms of the GNU
-dnl General Public License.  As a special exception to the GNU General
-dnl Public License, this file may be distributed as part of a program
-dnl that contains a configuration script generated by Autoconf, under
-dnl the same distribution terms as the rest of that program.
-
-dnl From Bruno Haible.
-
-AC_DEFUN([gt_INTDIV0],
-[
-  AC_REQUIRE([AC_PROG_CC])dnl
-  AC_REQUIRE([AC_CANONICAL_HOST])dnl
-
-  AC_CACHE_CHECK([whether integer division by zero raises SIGFPE],
-    gt_cv_int_divbyzero_sigfpe,
-    [
-      AC_TRY_RUN([
-#include <stdlib.h>
-#include <signal.h>
-
-static void
-#ifdef __cplusplus
-sigfpe_handler (int sig)
-#else
-sigfpe_handler (sig) int sig;
-#endif
-{
-  /* Exit with code 0 if SIGFPE, with code 1 if any other signal.  */
-  exit (sig != SIGFPE);
-}
-
-int x = 1;
-int y = 0;
-int z;
-int nan;
-
-int main ()
-{
-  signal (SIGFPE, sigfpe_handler);
-/* IRIX and AIX (when "xlc -qcheck" is used) yield signal SIGTRAP.  */
-#if (defined (__sgi) || defined (_AIX)) && defined (SIGTRAP)
-  signal (SIGTRAP, sigfpe_handler);
-#endif
-/* Linux/SPARC yields signal SIGILL.  */
-#if defined (__sparc__) && defined (__linux__)
-  signal (SIGILL, sigfpe_handler);
-#endif
-
-  z = x / y;
-  nan = y / y;
-  exit (1);
-}
-], gt_cv_int_divbyzero_sigfpe=yes, gt_cv_int_divbyzero_sigfpe=no,
-        [
-          # Guess based on the CPU.
-          case "$host_cpu" in
-            alpha* | i[34567]86 | m68k | s390*)
-              gt_cv_int_divbyzero_sigfpe="guessing yes";;
-            *)
-              gt_cv_int_divbyzero_sigfpe="guessing no";;
-          esac
-        ])
-    ])
-  case "$gt_cv_int_divbyzero_sigfpe" in
-    *yes) value=1;;
-    *) value=0;;
-  esac
-  AC_DEFINE_UNQUOTED(INTDIV0_RAISES_SIGFPE, $value,
-    [Define if integer division by zero raises signal SIGFPE.])
-])

m4/inttypes-pri.m4

@@ -1,32 +0,0 @@
-# inttypes-pri.m4 serial 1 (gettext-0.11.4)
-dnl Copyright (C) 1997-2002 Free Software Foundation, Inc.
-dnl This file is free software, distributed under the terms of the GNU
-dnl General Public License.  As a special exception to the GNU General
-dnl Public License, this file may be distributed as part of a program
-dnl that contains a configuration script generated by Autoconf, under
-dnl the same distribution terms as the rest of that program.
-
-dnl From Bruno Haible.
-
-# Define PRI_MACROS_BROKEN if <inttypes.h> exists and defines the PRI*
-# macros to non-string values.  This is the case on AIX 4.3.3.
-
-AC_DEFUN([gt_INTTYPES_PRI],
-[
-  AC_REQUIRE([gt_HEADER_INTTYPES_H])
-  if test $gt_cv_header_inttypes_h = yes; then
-    AC_CACHE_CHECK([whether the inttypes.h PRIxNN macros are broken],
-      gt_cv_inttypes_pri_broken,
-      [
-        AC_TRY_COMPILE([#include <inttypes.h>
-#ifdef PRId32
-char *p = PRId32;
-#endif
-], [], gt_cv_inttypes_pri_broken=no, gt_cv_inttypes_pri_broken=yes)
-      ])
-  fi
-  if test "$gt_cv_inttypes_pri_broken" = yes; then
-    AC_DEFINE_UNQUOTED(PRI_MACROS_BROKEN, 1,
-      [Define if <inttypes.h> exists and defines unusable PRI* macros.])
-  fi
-])

m4/inttypes.m4

@@ -1,27 +0,0 @@
-# inttypes.m4 serial 1 (gettext-0.11.4)
-dnl Copyright (C) 1997-2002 Free Software Foundation, Inc.
-dnl This file is free software, distributed under the terms of the GNU
-dnl General Public License.  As a special exception to the GNU General
-dnl Public License, this file may be distributed as part of a program
-dnl that contains a configuration script generated by Autoconf, under
-dnl the same distribution terms as the rest of that program.
-
-dnl From Paul Eggert.
-
-# Define HAVE_INTTYPES_H if <inttypes.h> exists and doesn't clash with
-# <sys/types.h>.
-
-AC_DEFUN([gt_HEADER_INTTYPES_H],
-[
-  AC_CACHE_CHECK([for inttypes.h], gt_cv_header_inttypes_h,
-  [
-    AC_TRY_COMPILE(
-      [#include <sys/types.h>
-#include <inttypes.h>],
-      [], gt_cv_header_inttypes_h=yes, gt_cv_header_inttypes_h=no)
-  ])
-  if test $gt_cv_header_inttypes_h = yes; then
-    AC_DEFINE_UNQUOTED(HAVE_INTTYPES_H, 1,
-      [Define if <inttypes.h> exists and doesn't clash with <sys/types.h>.])
-  fi
-])

m4/inttypes_h.m4

@@ -1,28 +0,0 @@
-# inttypes_h.m4 serial 4 (gettext-0.11.4)
-dnl Copyright (C) 1997-2002 Free Software Foundation, Inc.
-dnl This file is free software, distributed under the terms of the GNU
-dnl General Public License.  As a special exception to the GNU General
-dnl Public License, this file may be distributed as part of a program
-dnl that contains a configuration script generated by Autoconf, under
-dnl the same distribution terms as the rest of that program.
-
-dnl From Paul Eggert.
-
-# Define HAVE_INTTYPES_H_WITH_UINTMAX if <inttypes.h> exists,
-# doesn't clash with <sys/types.h>, and declares uintmax_t.
-
-AC_DEFUN([jm_AC_HEADER_INTTYPES_H],
-[
-  AC_CACHE_CHECK([for inttypes.h], jm_ac_cv_header_inttypes_h,
-  [AC_TRY_COMPILE(
-    [#include <sys/types.h>
-#include <inttypes.h>],
-    [uintmax_t i = (uintmax_t) -1;],
-    jm_ac_cv_header_inttypes_h=yes,
-    jm_ac_cv_header_inttypes_h=no)])
-  if test $jm_ac_cv_header_inttypes_h = yes; then
-    AC_DEFINE_UNQUOTED(HAVE_INTTYPES_H_WITH_UINTMAX, 1,
-[Define if <inttypes.h> exists, doesn't clash with <sys/types.h>,
-   and declares uintmax_t. ])
-  fi
-])

m4/isc-posix.m4

@@ -1,26 +0,0 @@
-# isc-posix.m4 serial 2 (gettext-0.11.2)
-dnl Copyright (C) 1995-2002 Free Software Foundation, Inc.
-dnl This file is free software, distributed under the terms of the GNU
-dnl General Public License.  As a special exception to the GNU General
-dnl Public License, this file may be distributed as part of a program
-dnl that contains a configuration script generated by Autoconf, under
-dnl the same distribution terms as the rest of that program.
-
-# This file is not needed with autoconf-2.53 and newer.  Remove it in 2005.
-
-# This test replaces the one in autoconf.
-# Currently this macro should have the same name as the autoconf macro
-# because gettext's gettext.m4 (distributed in the automake package)
-# still uses it.  Otherwise, the use in gettext.m4 makes autoheader
-# give these diagnostics:
-#   configure.in:556: AC_TRY_COMPILE was called before AC_ISC_POSIX
-#   configure.in:556: AC_TRY_RUN was called before AC_ISC_POSIX
-
-undefine([AC_ISC_POSIX])
-
-AC_DEFUN([AC_ISC_POSIX],
-  [
-    dnl This test replaces the obsolescent AC_ISC_POSIX kludge.
-    AC_CHECK_LIB(cposix, strerror, [LIBS="$LIBS -lcposix"])
-  ]
-)

m4/lcmessage.m4

@@ -1,32 +0,0 @@
-# lcmessage.m4 serial 3 (gettext-0.11.3)
-dnl Copyright (C) 1995-2002 Free Software Foundation, Inc.
-dnl This file is free software, distributed under the terms of the GNU
-dnl General Public License.  As a special exception to the GNU General
-dnl Public License, this file may be distributed as part of a program
-dnl that contains a configuration script generated by Autoconf, under
-dnl the same distribution terms as the rest of that program.
-dnl
-dnl This file can can be used in projects which are not available under
-dnl the GNU General Public License or the GNU Library General Public
-dnl License but which still want to provide support for the GNU gettext
-dnl functionality.
-dnl Please note that the actual code of the GNU gettext library is covered
-dnl by the GNU Library General Public License, and the rest of the GNU
-dnl gettext package package is covered by the GNU General Public License.
-dnl They are *not* in the public domain.
-
-dnl Authors:
-dnl   Ulrich Drepper <drepper@cygnus.com>, 1995.
-
-# Check whether LC_MESSAGES is available in <locale.h>.
-
-AC_DEFUN([AM_LC_MESSAGES],
-[
-  AC_CACHE_CHECK([for LC_MESSAGES], am_cv_val_LC_MESSAGES,
-    [AC_TRY_LINK([#include <locale.h>], [return LC_MESSAGES],
-       am_cv_val_LC_MESSAGES=yes, am_cv_val_LC_MESSAGES=no)])
-  if test $am_cv_val_LC_MESSAGES = yes; then
-    AC_DEFINE(HAVE_LC_MESSAGES, 1,
-      [Define if your <locale.h> file defines LC_MESSAGES.])
-  fi
-])

m4/lib-ld.m4

@@ -1,97 +0,0 @@
-# lib-ld.m4 serial 1 (gettext-0.11)
-dnl Copyright (C) 1996-2002 Free Software Foundation, Inc.
-dnl This file is free software, distributed under the terms of the GNU
-dnl General Public License.  As a special exception to the GNU General
-dnl Public License, this file may be distributed as part of a program
-dnl that contains a configuration script generated by Autoconf, under
-dnl the same distribution terms as the rest of that program.
-
-dnl Subroutines of libtool.m4,
-dnl with replacements s/AC_/AC_LIB/ and s/lt_cv/acl_cv/ to avoid collision
-dnl with libtool.m4.
-
-dnl From libtool-1.4. Sets the variable with_gnu_ld to yes or no.
-AC_DEFUN([AC_LIB_PROG_LD_GNU],
-[AC_CACHE_CHECK([if the linker ($LD) is GNU ld], acl_cv_prog_gnu_ld,
-[# I'd rather use --version here, but apparently some GNU ld's only accept -v.
-if $LD -v 2>&1 </dev/null | egrep '(GNU|with BFD)' 1>&5; then
-  acl_cv_prog_gnu_ld=yes
-else
-  acl_cv_prog_gnu_ld=no
-fi])
-with_gnu_ld=$acl_cv_prog_gnu_ld
-])
-
-dnl From libtool-1.4. Sets the variable LD.
-AC_DEFUN([AC_LIB_PROG_LD],
-[AC_ARG_WITH(gnu-ld,
-[  --with-gnu-ld           assume the C compiler uses GNU ld [default=no]],
-test "$withval" = no || with_gnu_ld=yes, with_gnu_ld=no)
-AC_REQUIRE([AC_PROG_CC])dnl
-AC_REQUIRE([AC_CANONICAL_HOST])dnl
-ac_prog=ld
-if test "$GCC" = yes; then
-  # Check if gcc -print-prog-name=ld gives a path.
-  AC_MSG_CHECKING([for ld used by GCC])
-  case $host in
-  *-*-mingw*)
-    # gcc leaves a trailing carriage return which upsets mingw
-    ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;;
-  *)
-    ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;
-  esac
-  case $ac_prog in
-    # Accept absolute paths.
-    [[\\/]* | [A-Za-z]:[\\/]*)]
-      [re_direlt='/[^/][^/]*/\.\./']
-      # Canonicalize the path of ld
-      ac_prog=`echo $ac_prog| sed 's%\\\\%/%g'`
-      while echo $ac_prog | grep "$re_direlt" > /dev/null 2>&1; do
-	ac_prog=`echo $ac_prog| sed "s%$re_direlt%/%"`
-      done
-      test -z "$LD" && LD="$ac_prog"
-      ;;
-  "")
-    # If it fails, then pretend we aren't using GCC.
-    ac_prog=ld
-    ;;
-  *)
-    # If it is relative, then search for the first ld in PATH.
-    with_gnu_ld=unknown
-    ;;
-  esac
-elif test "$with_gnu_ld" = yes; then
-  AC_MSG_CHECKING([for GNU ld])
-else
-  AC_MSG_CHECKING([for non-GNU ld])
-fi
-AC_CACHE_VAL(acl_cv_path_LD,
-[if test -z "$LD"; then
-  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR-:}"
-  for ac_dir in $PATH; do
-    test -z "$ac_dir" && ac_dir=.
-    if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
-      acl_cv_path_LD="$ac_dir/$ac_prog"
-      # Check to see if the program is GNU ld.  I'd rather use --version,
-      # but apparently some GNU ld's only accept -v.
-      # Break only if it was the GNU/non-GNU ld that we prefer.
-      if "$acl_cv_path_LD" -v 2>&1 < /dev/null | egrep '(GNU|with BFD)' > /dev/null; then
-	test "$with_gnu_ld" != no && break
-      else
-	test "$with_gnu_ld" != yes && break
-      fi
-    fi
-  done
-  IFS="$ac_save_ifs"
-else
-  acl_cv_path_LD="$LD" # Let the user override the test with a path.
-fi])
-LD="$acl_cv_path_LD"
-if test -n "$LD"; then
-  AC_MSG_RESULT($LD)
-else
-  AC_MSG_RESULT(no)
-fi
-test -z "$LD" && AC_MSG_ERROR([no acceptable ld found in \$PATH])
-AC_LIB_PROG_LD_GNU
-])

m4/lib-link.m4

@@ -1,554 +0,0 @@
-# lib-link.m4 serial 3 (gettext-0.11.3)
-dnl Copyright (C) 2001-2002 Free Software Foundation, Inc.
-dnl This file is free software, distributed under the terms of the GNU
-dnl General Public License.  As a special exception to the GNU General
-dnl Public License, this file may be distributed as part of a program
-dnl that contains a configuration script generated by Autoconf, under
-dnl the same distribution terms as the rest of that program.
-
-dnl From Bruno Haible.
-
-dnl AC_LIB_LINKFLAGS(name [, dependencies]) searches for libname and
-dnl the libraries corresponding to explicit and implicit dependencies.
-dnl Sets and AC_SUBSTs the LIB${NAME} and LTLIB${NAME} variables and
-dnl augments the CPPFLAGS variable.
-AC_DEFUN([AC_LIB_LINKFLAGS],
-[
-  AC_REQUIRE([AC_LIB_PREPARE_PREFIX])
-  AC_REQUIRE([AC_LIB_RPATH])
-  define([Name],[translit([$1],[./-], [___])])
-  define([NAME],[translit([$1],[abcdefghijklmnopqrstuvwxyz./-],
-                               [ABCDEFGHIJKLMNOPQRSTUVWXYZ___])])
-  AC_CACHE_CHECK([how to link with lib[]$1], [ac_cv_lib[]Name[]_libs], [
-    AC_LIB_LINKFLAGS_BODY([$1], [$2])
-    ac_cv_lib[]Name[]_libs="$LIB[]NAME"
-    ac_cv_lib[]Name[]_ltlibs="$LTLIB[]NAME"
-    ac_cv_lib[]Name[]_cppflags="$INC[]NAME"
-  ])
-  LIB[]NAME="$ac_cv_lib[]Name[]_libs"
-  LTLIB[]NAME="$ac_cv_lib[]Name[]_ltlibs"
-  INC[]NAME="$ac_cv_lib[]Name[]_cppflags"
-  AC_LIB_APPENDTOVAR([CPPFLAGS], [$INC]NAME)
-  AC_SUBST([LIB]NAME)
-  AC_SUBST([LTLIB]NAME)
-  dnl Also set HAVE_LIB[]NAME so that AC_LIB_HAVE_LINKFLAGS can reuse the
-  dnl results of this search when this library appears as a dependency.
-  HAVE_LIB[]NAME=yes
-  undefine([Name])
-  undefine([NAME])
-])
-
-dnl AC_LIB_HAVE_LINKFLAGS(name, dependencies, includes, testcode)
-dnl searches for libname and the libraries corresponding to explicit and
-dnl implicit dependencies, together with the specified include files and
-dnl the ability to compile and link the specified testcode. If found, it
-dnl sets and AC_SUBSTs HAVE_LIB${NAME}=yes and the LIB${NAME} and
-dnl LTLIB${NAME} variables and augments the CPPFLAGS variable, and
-dnl #defines HAVE_LIB${NAME} to 1. Otherwise, it sets and AC_SUBSTs
-dnl HAVE_LIB${NAME}=no and LIB${NAME} and LTLIB${NAME} to empty.
-AC_DEFUN([AC_LIB_HAVE_LINKFLAGS],
-[
-  AC_REQUIRE([AC_LIB_PREPARE_PREFIX])
-  AC_REQUIRE([AC_LIB_RPATH])
-  define([Name],[translit([$1],[./-], [___])])
-  define([NAME],[translit([$1],[abcdefghijklmnopqrstuvwxyz./-],
-                               [ABCDEFGHIJKLMNOPQRSTUVWXYZ___])])
-
-  dnl Search for lib[]Name and define LIB[]NAME, LTLIB[]NAME and INC[]NAME
-  dnl accordingly.
-  AC_LIB_LINKFLAGS_BODY([$1], [$2])
-
-  dnl Add $INC[]NAME to CPPFLAGS before performing the following checks,
-  dnl because if the user has installed lib[]Name and not disabled its use
-  dnl via --without-lib[]Name-prefix, he wants to use it.
-  ac_save_CPPFLAGS="$CPPFLAGS"
-  AC_LIB_APPENDTOVAR([CPPFLAGS], [$INC]NAME)
-
-  AC_CACHE_CHECK([for lib[]$1], [ac_cv_lib[]Name], [
-    ac_save_LIBS="$LIBS"
-    LIBS="$LIBS $LIB[]NAME"
-    AC_TRY_LINK([$3], [$4], [ac_cv_lib[]Name=yes], [ac_cv_lib[]Name=no])
-    LIBS="$ac_save_LIBS"
-  ])
-  if test "$ac_cv_lib[]Name" = yes; then
-    HAVE_LIB[]NAME=yes
-    AC_DEFINE([HAVE_LIB]NAME, 1, [Define if you have the $1 library.])
-    AC_MSG_CHECKING([how to link with lib[]$1])
-    AC_MSG_RESULT([$LIB[]NAME])
-  else
-    HAVE_LIB[]NAME=no
-    dnl If $LIB[]NAME didn't lead to a usable library, we don't need
-    dnl $INC[]NAME either.
-    CPPFLAGS="$ac_save_CPPFLAGS"
-    LIB[]NAME=
-    LTLIB[]NAME=
-  fi
-  AC_SUBST([HAVE_LIB]NAME)
-  AC_SUBST([LIB]NAME)
-  AC_SUBST([LTLIB]NAME)
-  undefine([Name])
-  undefine([NAME])
-])
-
-dnl Determine the platform dependent parameters needed to use rpath:
-dnl libext, shlibext, hardcode_libdir_flag_spec, hardcode_libdir_separator,
-dnl hardcode_direct, hardcode_minus_L,
-dnl sys_lib_search_path_spec, sys_lib_dlsearch_path_spec.
-AC_DEFUN([AC_LIB_RPATH],
-[
-  AC_REQUIRE([AC_PROG_CC])                dnl we use $CC, $GCC, $LDFLAGS
-  AC_REQUIRE([AC_LIB_PROG_LD])            dnl we use $LD, $with_gnu_ld
-  AC_REQUIRE([AC_CANONICAL_HOST])         dnl we use $host
-  AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT]) dnl we use $ac_aux_dir
-  AC_CACHE_CHECK([for shared library run path origin], acl_cv_rpath, [
-    CC="$CC" GCC="$GCC" LDFLAGS="$LDFLAGS" LD="$LD" with_gnu_ld="$with_gnu_ld" \
-    ${CONFIG_SHELL-/bin/sh} "$ac_aux_dir/config.rpath" "$host" > conftest.sh
-    . ./conftest.sh
-    rm -f ./conftest.sh
-    acl_cv_rpath=done
-  ])
-  wl="$acl_cv_wl"
-  libext="$acl_cv_libext"
-  shlibext="$acl_cv_shlibext"
-  hardcode_libdir_flag_spec="$acl_cv_hardcode_libdir_flag_spec"
-  hardcode_libdir_separator="$acl_cv_hardcode_libdir_separator"
-  hardcode_direct="$acl_cv_hardcode_direct"
-  hardcode_minus_L="$acl_cv_hardcode_minus_L"
-  sys_lib_search_path_spec="$acl_cv_sys_lib_search_path_spec"
-  sys_lib_dlsearch_path_spec="$acl_cv_sys_lib_dlsearch_path_spec"
-  dnl Determine whether the user wants rpath handling at all.
-  AC_ARG_ENABLE(rpath,
-    [  --disable-rpath         do not hardcode runtime library paths],
-    :, enable_rpath=yes)
-])
-
-dnl AC_LIB_LINKFLAGS_BODY(name [, dependencies]) searches for libname and
-dnl the libraries corresponding to explicit and implicit dependencies.
-dnl Sets the LIB${NAME}, LTLIB${NAME} and INC${NAME} variables.
-AC_DEFUN([AC_LIB_LINKFLAGS_BODY],
-[
-  define([NAME],[translit([$1],[abcdefghijklmnopqrstuvwxyz./-],
-                               [ABCDEFGHIJKLMNOPQRSTUVWXYZ___])])
-  dnl By default, look in $includedir and $libdir.
-  use_additional=yes
-  AC_LIB_WITH_FINAL_PREFIX([
-    eval additional_includedir=\"$includedir\"
-    eval additional_libdir=\"$libdir\"
-  ])
-  AC_ARG_WITH([lib$1-prefix],
-[  --with-lib$1-prefix[=DIR]  search for lib$1 in DIR/include and DIR/lib
-  --without-lib$1-prefix     don't search for lib$1 in includedir and libdir],
-[
-    if test "X$withval" = "Xno"; then
-      use_additional=no
-    else
-      if test "X$withval" = "X"; then
-        AC_LIB_WITH_FINAL_PREFIX([
-          eval additional_includedir=\"$includedir\"
-          eval additional_libdir=\"$libdir\"
-        ])
-      else
-        additional_includedir="$withval/include"
-        additional_libdir="$withval/lib"
-      fi
-    fi
-])
-  dnl Search the library and its dependencies in $additional_libdir and
-  dnl $LDFLAGS. Using breadth-first-seach.
-  LIB[]NAME=
-  LTLIB[]NAME=
-  INC[]NAME=
-  rpathdirs=
-  ltrpathdirs=
-  names_already_handled=
-  names_next_round='$1 $2'
-  while test -n "$names_next_round"; do
-    names_this_round="$names_next_round"
-    names_next_round=
-    for name in $names_this_round; do
-      already_handled=
-      for n in $names_already_handled; do
-        if test "$n" = "$name"; then
-          already_handled=yes
-          break
-        fi
-      done
-      if test -z "$already_handled"; then
-        names_already_handled="$names_already_handled $name"
-        dnl See if it was already located by an earlier AC_LIB_LINKFLAGS
-        dnl or AC_LIB_HAVE_LINKFLAGS call.
-        uppername=`echo "$name" | sed -e 'y|abcdefghijklmnopqrstuvwxyz./-|ABCDEFGHIJKLMNOPQRSTUVWXYZ___|'`
-        eval value=\"\$HAVE_LIB$uppername\"
-        if test -n "$value"; then
-          if test "$value" = yes; then
-            eval value=\"\$LIB$uppername\"
-            test -z "$value" || LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$value"
-            eval value=\"\$LTLIB$uppername\"
-            test -z "$value" || LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }$value"
-          else
-            dnl An earlier call to AC_LIB_HAVE_LINKFLAGS has determined
-            dnl that this library doesn't exist. So just drop it.
-            :
-          fi
-        else
-          dnl Search the library lib$name in $additional_libdir and $LDFLAGS
-          dnl and the already constructed $LIBNAME/$LTLIBNAME.
-          found_dir=
-          found_la=
-          found_so=
-          found_a=
-          if test $use_additional = yes; then
-            if test -n "$shlibext" && test -f "$additional_libdir/lib$name.$shlibext"; then
-              found_dir="$additional_libdir"
-              found_so="$additional_libdir/lib$name.$shlibext"
-              if test -f "$additional_libdir/lib$name.la"; then
-                found_la="$additional_libdir/lib$name.la"
-              fi
-            else
-              if test -f "$additional_libdir/lib$name.$libext"; then
-                found_dir="$additional_libdir"
-                found_a="$additional_libdir/lib$name.$libext"
-                if test -f "$additional_libdir/lib$name.la"; then
-                  found_la="$additional_libdir/lib$name.la"
-                fi
-              fi
-            fi
-          fi
-          if test "X$found_dir" = "X"; then
-            for x in $LDFLAGS $LTLIB[]NAME; do
-              AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"])
-              case "$x" in
-                -L*)
-                  dir=`echo "X$x" | sed -e 's/^X-L//'`
-                  if test -n "$shlibext" && test -f "$dir/lib$name.$shlibext"; then
-                    found_dir="$dir"
-                    found_so="$dir/lib$name.$shlibext"
-                    if test -f "$dir/lib$name.la"; then
-                      found_la="$dir/lib$name.la"
-                    fi
-                  else
-                    if test -f "$dir/lib$name.$libext"; then
-                      found_dir="$dir"
-                      found_a="$dir/lib$name.$libext"
-                      if test -f "$dir/lib$name.la"; then
-                        found_la="$dir/lib$name.la"
-                      fi
-                    fi
-                  fi
-                  ;;
-              esac
-              if test "X$found_dir" != "X"; then
-                break
-              fi
-            done
-          fi
-          if test "X$found_dir" != "X"; then
-            dnl Found the library.
-            LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-L$found_dir -l$name"
-            if test "X$found_so" != "X"; then
-              dnl Linking with a shared library. We attempt to hardcode its
-              dnl directory into the executable's runpath, unless it's the
-              dnl standard /usr/lib.
-              if test "$enable_rpath" = no || test "X$found_dir" = "X/usr/lib"; then
-                dnl No hardcoding is needed.
-                LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so"
-              else
-                dnl Use an explicit option to hardcode DIR into the resulting
-                dnl binary.
-                dnl Potentially add DIR to ltrpathdirs.
-                dnl The ltrpathdirs will be appended to $LTLIBNAME at the end.
-                haveit=
-                for x in $ltrpathdirs; do
-                  if test "X$x" = "X$found_dir"; then
-                    haveit=yes
-                    break
-                  fi
-                done
-                if test -z "$haveit"; then
-                  ltrpathdirs="$ltrpathdirs $found_dir"
-                fi
-                dnl The hardcoding into $LIBNAME is system dependent.
-                if test "$hardcode_direct" = yes; then
-                  dnl Using DIR/libNAME.so during linking hardcodes DIR into the
-                  dnl resulting binary.
-                  LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so"
-                else
-                  if test -n "$hardcode_libdir_flag_spec" && test "$hardcode_minus_L" = no; then
-                    dnl Use an explicit option to hardcode DIR into the resulting
-                    dnl binary.
-                    LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so"
-                    dnl Potentially add DIR to rpathdirs.
-                    dnl The rpathdirs will be appended to $LIBNAME at the end.
-                    haveit=
-                    for x in $rpathdirs; do
-                      if test "X$x" = "X$found_dir"; then
-                        haveit=yes
-                        break
-                      fi
-                    done
-                    if test -z "$haveit"; then
-                      rpathdirs="$rpathdirs $found_dir"
-                    fi
-                  else
-                    dnl Rely on "-L$found_dir".
-                    dnl But don't add it if it's already contained in the LDFLAGS
-                    dnl or the already constructed $LIBNAME
-                    haveit=
-                    for x in $LDFLAGS $LIB[]NAME; do
-                      AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"])
-                      if test "X$x" = "X-L$found_dir"; then
-                        haveit=yes
-                        break
-                      fi
-                    done
-                    if test -z "$haveit"; then
-                      LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-L$found_dir"
-                    fi
-                    if test "$hardcode_minus_L" != no; then
-                      dnl FIXME: Not sure whether we should use
-                      dnl "-L$found_dir -l$name" or "-L$found_dir $found_so"
-                      dnl here.
-                      LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so"
-                    else
-                      dnl We cannot use $hardcode_runpath_var and LD_RUN_PATH
-                      dnl here, because this doesn't fit in flags passed to the
-                      dnl compiler. So give up. No hardcoding. This affects only
-                      dnl very old systems.
-                      dnl FIXME: Not sure whether we should use
-                      dnl "-L$found_dir -l$name" or "-L$found_dir $found_so"
-                      dnl here.
-                      LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-l$name"
-                    fi
-                  fi
-                fi
-              fi
-            else
-              if test "X$found_a" != "X"; then
-                dnl Linking with a static library.
-                LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_a"
-              else
-                dnl We shouldn't come here, but anyway it's good to have a
-                dnl fallback.
-                LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-L$found_dir -l$name"
-              fi
-            fi
-            dnl Assume the include files are nearby.
-            additional_includedir=
-            case "$found_dir" in
-              */lib | */lib/)
-                basedir=`echo "X$found_dir" | sed -e 's,^X,,' -e 's,/lib/*$,,'`
-                additional_includedir="$basedir/include"
-                ;;
-            esac
-            if test "X$additional_includedir" != "X"; then
-              dnl Potentially add $additional_includedir to $INCNAME.
-              dnl But don't add it
-              dnl   1. if it's the standard /usr/include,
-              dnl   2. if it's /usr/local/include and we are using GCC on Linux,
-              dnl   3. if it's already present in $CPPFLAGS or the already
-              dnl      constructed $INCNAME,
-              dnl   4. if it doesn't exist as a directory.
-              if test "X$additional_includedir" != "X/usr/include"; then
-                haveit=
-                if test "X$additional_includedir" = "X/usr/local/include"; then
-                  if test -n "$GCC"; then
-                    case $host_os in
-                      linux*) haveit=yes;;
-                    esac
-                  fi
-                fi
-                if test -z "$haveit"; then
-                  for x in $CPPFLAGS $INC[]NAME; do
-                    AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"])
-                    if test "X$x" = "X-I$additional_includedir"; then
-                      haveit=yes
-                      break
-                    fi
-                  done
-                  if test -z "$haveit"; then
-                    if test -d "$additional_includedir"; then
-                      dnl Really add $additional_includedir to $INCNAME.
-                      INC[]NAME="${INC[]NAME}${INC[]NAME:+ }-I$additional_includedir"
-                    fi
-                  fi
-                fi
-              fi
-            fi
-            dnl Look for dependencies.
-            if test -n "$found_la"; then
-              dnl Read the .la file. It defines the variables
-              dnl dlname, library_names, old_library, dependency_libs, current,
-              dnl age, revision, installed, dlopen, dlpreopen, libdir.
-              save_libdir="$libdir"
-              case "$found_la" in
-                */* | *\\*) . "$found_la" ;;
-                *) . "./$found_la" ;;
-              esac
-              libdir="$save_libdir"
-              dnl We use only dependency_libs.
-              for dep in $dependency_libs; do
-                case "$dep" in
-                  -L*)
-                    additional_libdir=`echo "X$dep" | sed -e 's/^X-L//'`
-                    dnl Potentially add $additional_libdir to $LIBNAME and $LTLIBNAME.
-                    dnl But don't add it
-                    dnl   1. if it's the standard /usr/lib,
-                    dnl   2. if it's /usr/local/lib and we are using GCC on Linux,
-                    dnl   3. if it's already present in $LDFLAGS or the already
-                    dnl      constructed $LIBNAME,
-                    dnl   4. if it doesn't exist as a directory.
-                    if test "X$additional_libdir" != "X/usr/lib"; then
-                      haveit=
-                      if test "X$additional_libdir" = "X/usr/local/lib"; then
-                        if test -n "$GCC"; then
-                          case $host_os in
-                            linux*) haveit=yes;;
-                          esac
-                        fi
-                      fi
-                      if test -z "$haveit"; then
-                        haveit=
-                        for x in $LDFLAGS $LIB[]NAME; do
-                          AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"])
-                          if test "X$x" = "X-L$additional_libdir"; then
-                            haveit=yes
-                            break
-                          fi
-                        done
-                        if test -z "$haveit"; then
-                          if test -d "$additional_libdir"; then
-                            dnl Really add $additional_libdir to $LIBNAME.
-                            LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-L$additional_libdir"
-                          fi
-                        fi
-                        haveit=
-                        for x in $LDFLAGS $LTLIB[]NAME; do
-                          AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"])
-                          if test "X$x" = "X-L$additional_libdir"; then
-                            haveit=yes
-                            break
-                          fi
-                        done
-                        if test -z "$haveit"; then
-                          if test -d "$additional_libdir"; then
-                            dnl Really add $additional_libdir to $LTLIBNAME.
-                            LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-L$additional_libdir"
-                          fi
-                        fi
-                      fi
-                    fi
-                    ;;
-                  -R*)
-                    dir=`echo "X$dep" | sed -e 's/^X-R//'`
-                    if test "$enable_rpath" != no; then
-                      dnl Potentially add DIR to rpathdirs.
-                      dnl The rpathdirs will be appended to $LIBNAME at the end.
-                      haveit=
-                      for x in $rpathdirs; do
-                        if test "X$x" = "X$dir"; then
-                          haveit=yes
-                          break
-                        fi
-                      done
-                      if test -z "$haveit"; then
-                        rpathdirs="$rpathdirs $dir"
-                      fi
-                      dnl Potentially add DIR to ltrpathdirs.
-                      dnl The ltrpathdirs will be appended to $LTLIBNAME at the end.
-                      haveit=
-                      for x in $ltrpathdirs; do
-                        if test "X$x" = "X$dir"; then
-                          haveit=yes
-                          break
-                        fi
-                      done
-                      if test -z "$haveit"; then
-                        ltrpathdirs="$ltrpathdirs $dir"
-                      fi
-                    fi
-                    ;;
-                  -l*)
-                    dnl Handle this in the next round.
-                    names_next_round="$names_next_round "`echo "X$dep" | sed -e 's/^X-l//'`
-                    ;;
-                  *.la)
-                    dnl Handle this in the next round. Throw away the .la's
-                    dnl directory; it is already contained in a preceding -L
-                    dnl option.
-                    names_next_round="$names_next_round "`echo "X$dep" | sed -e 's,^X.*/,,' -e 's,^lib,,' -e 's,\.la$,,'`
-                    ;;
-                  *)
-                    dnl Most likely an immediate library name.
-                    LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$dep"
-                    LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }$dep"
-                    ;;
-                esac
-              done
-            fi
-          else
-            dnl Didn't find the library; assume it is in the system directories
-            dnl known to the linker and runtime loader. (All the system
-            dnl directories known to the linker should also be known to the
-            dnl runtime loader, otherwise the system is severely misconfigured.)
-            LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-l$name"
-            LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-l$name"
-          fi
-        fi
-      fi
-    done
-  done
-  if test "X$rpathdirs" != "X"; then
-    if test -n "$hardcode_libdir_separator"; then
-      dnl Weird platform: only the last -rpath option counts, the user must
-      dnl pass all path elements in one option. We can arrange that for a
-      dnl single library, but not when more than one $LIBNAMEs are used.
-      alldirs=
-      for found_dir in $rpathdirs; do
-        alldirs="${alldirs}${alldirs:+$hardcode_libdir_separator}$found_dir"
-      done
-      dnl Note: hardcode_libdir_flag_spec uses $libdir and $wl.
-      acl_save_libdir="$libdir"
-      libdir="$alldirs"
-      eval flag=\"$hardcode_libdir_flag_spec\"
-      libdir="$acl_save_libdir"
-      LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$flag"
-    else
-      dnl The -rpath options are cumulative.
-      for found_dir in $rpathdirs; do
-        acl_save_libdir="$libdir"
-        libdir="$found_dir"
-        eval flag=\"$hardcode_libdir_flag_spec\"
-        libdir="$acl_save_libdir"
-        LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$flag"
-      done
-    fi
-  fi
-  if test "X$ltrpathdirs" != "X"; then
-    dnl When using libtool, the option that works for both libraries and
-    dnl executables is -R. The -R options are cumulative.
-    for found_dir in $ltrpathdirs; do
-      LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-R$found_dir"
-    done
-  fi
-])
-
-dnl AC_LIB_APPENDTOVAR(VAR, CONTENTS) appends the elements of CONTENTS to VAR,
-dnl unless already present in VAR.
-dnl Works only for CPPFLAGS, not for LIB* variables because that sometimes
-dnl contains two or three consecutive elements that belong together.
-AC_DEFUN([AC_LIB_APPENDTOVAR],
-[
-  for element in [$2]; do
-    haveit=
-    for x in $[$1]; do
-      AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"])
-      if test "X$x" = "X$element"; then
-        haveit=yes
-        break
-      fi
-    done
-    if test -z "$haveit"; then
-      [$1]="${[$1]}${[$1]:+ }$element"
-    fi
-  done
-])

m4/lib-prefix.m4

@@ -1,148 +0,0 @@
-# lib-prefix.m4 serial 1 (gettext-0.11)
-dnl Copyright (C) 2001-2002 Free Software Foundation, Inc.
-dnl This file is free software, distributed under the terms of the GNU
-dnl General Public License.  As a special exception to the GNU General
-dnl Public License, this file may be distributed as part of a program
-dnl that contains a configuration script generated by Autoconf, under
-dnl the same distribution terms as the rest of that program.
-
-dnl From Bruno Haible.
-
-dnl AC_LIB_PREFIX adds to the CPPFLAGS and LDFLAGS the flags that are needed
-dnl to access previously installed libraries. The basic assumption is that
-dnl a user will want packages to use other packages he previously installed
-dnl with the same --prefix option.
-dnl This macro is not needed if only AC_LIB_LINKFLAGS is used to locate
-dnl libraries, but is otherwise very convenient.
-AC_DEFUN([AC_LIB_PREFIX],
-[
-  AC_BEFORE([$0], [AC_LIB_LINKFLAGS])
-  AC_REQUIRE([AC_PROG_CC])
-  AC_REQUIRE([AC_CANONICAL_HOST])
-  AC_REQUIRE([AC_LIB_PREPARE_PREFIX])
-  dnl By default, look in $includedir and $libdir.
-  use_additional=yes
-  AC_LIB_WITH_FINAL_PREFIX([
-    eval additional_includedir=\"$includedir\"
-    eval additional_libdir=\"$libdir\"
-  ])
-  AC_ARG_WITH([lib-prefix],
-[  --with-lib-prefix[=DIR] search for libraries in DIR/include and DIR/lib
-  --without-lib-prefix    don't search for libraries in includedir and libdir],
-[
-    if test "X$withval" = "Xno"; then
-      use_additional=no
-    else
-      if test "X$withval" = "X"; then
-        AC_LIB_WITH_FINAL_PREFIX([
-          eval additional_includedir=\"$includedir\"
-          eval additional_libdir=\"$libdir\"
-        ])
-      else
-        additional_includedir="$withval/include"
-        additional_libdir="$withval/lib"
-      fi
-    fi
-])
-  if test $use_additional = yes; then
-    dnl Potentially add $additional_includedir to $CPPFLAGS.
-    dnl But don't add it
-    dnl   1. if it's the standard /usr/include,
-    dnl   2. if it's already present in $CPPFLAGS,
-    dnl   3. if it's /usr/local/include and we are using GCC on Linux,
-    dnl   4. if it doesn't exist as a directory.
-    if test "X$additional_includedir" != "X/usr/include"; then
-      haveit=
-      for x in $CPPFLAGS; do
-        AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"])
-        if test "X$x" = "X-I$additional_includedir"; then
-          haveit=yes
-          break
-        fi
-      done
-      if test -z "$haveit"; then
-        if test "X$additional_includedir" = "X/usr/local/include"; then
-          if test -n "$GCC"; then
-            case $host_os in
-              linux*) haveit=yes;;
-            esac
-          fi
-        fi
-        if test -z "$haveit"; then
-          if test -d "$additional_includedir"; then
-            dnl Really add $additional_includedir to $CPPFLAGS.
-            CPPFLAGS="${CPPFLAGS}${CPPFLAGS:+ }-I$additional_includedir"
-          fi
-        fi
-      fi
-    fi
-    dnl Potentially add $additional_libdir to $LDFLAGS.
-    dnl But don't add it
-    dnl   1. if it's the standard /usr/lib,
-    dnl   2. if it's already present in $LDFLAGS,
-    dnl   3. if it's /usr/local/lib and we are using GCC on Linux,
-    dnl   4. if it doesn't exist as a directory.
-    if test "X$additional_libdir" != "X/usr/lib"; then
-      haveit=
-      for x in $LDFLAGS; do
-        AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"])
-        if test "X$x" = "X-L$additional_libdir"; then
-          haveit=yes
-          break
-        fi
-      done
-      if test -z "$haveit"; then
-        if test "X$additional_libdir" = "X/usr/local/lib"; then
-          if test -n "$GCC"; then
-            case $host_os in
-              linux*) haveit=yes;;
-            esac
-          fi
-        fi
-        if test -z "$haveit"; then
-          if test -d "$additional_libdir"; then
-            dnl Really add $additional_libdir to $LDFLAGS.
-            LDFLAGS="${LDFLAGS}${LDFLAGS:+ }-L$additional_libdir"
-          fi
-        fi
-      fi
-    fi
-  fi
-])
-
-dnl AC_LIB_PREPARE_PREFIX creates variables acl_final_prefix,
-dnl acl_final_exec_prefix, containing the values to which $prefix and
-dnl $exec_prefix will expand at the end of the configure script.
-AC_DEFUN([AC_LIB_PREPARE_PREFIX],
-[
-  dnl Unfortunately, prefix and exec_prefix get only finally determined
-  dnl at the end of configure.
-  if test "X$prefix" = "XNONE"; then
-    acl_final_prefix="$ac_default_prefix"
-  else
-    acl_final_prefix="$prefix"
-  fi
-  if test "X$exec_prefix" = "XNONE"; then
-    acl_final_exec_prefix='${prefix}'
-  else
-    acl_final_exec_prefix="$exec_prefix"
-  fi
-  acl_save_prefix="$prefix"
-  prefix="$acl_final_prefix"
-  eval acl_final_exec_prefix=\"$acl_final_exec_prefix\"
-  prefix="$acl_save_prefix"
-])
-
-dnl AC_LIB_WITH_FINAL_PREFIX([statement]) evaluates statement, with the
-dnl variables prefix and exec_prefix bound to the values they will have
-dnl at the end of the configure script.
-AC_DEFUN([AC_LIB_WITH_FINAL_PREFIX],
-[
-  acl_save_prefix="$prefix"
-  prefix="$acl_final_prefix"
-  acl_save_exec_prefix="$exec_prefix"
-  exec_prefix="$acl_final_exec_prefix"
-  $1
-  exec_prefix="$acl_save_exec_prefix"
-  prefix="$acl_save_prefix"
-])

m4/progtest.m4

@@ -1,59 +0,0 @@
-# progtest.m4 serial 2 (gettext-0.10.40)
-dnl Copyright (C) 1996-2002 Free Software Foundation, Inc.
-dnl This file is free software, distributed under the terms of the GNU
-dnl General Public License.  As a special exception to the GNU General
-dnl Public License, this file may be distributed as part of a program
-dnl that contains a configuration script generated by Autoconf, under
-dnl the same distribution terms as the rest of that program.
-dnl
-dnl This file can can be used in projects which are not available under
-dnl the GNU General Public License or the GNU Library General Public
-dnl License but which still want to provide support for the GNU gettext
-dnl functionality.
-dnl Please note that the actual code of the GNU gettext library is covered
-dnl by the GNU Library General Public License, and the rest of the GNU
-dnl gettext package package is covered by the GNU General Public License.
-dnl They are *not* in the public domain.
-
-dnl Authors:
-dnl   Ulrich Drepper <drepper@cygnus.com>, 1996.
-
-# Search path for a program which passes the given test.
-
-dnl AM_PATH_PROG_WITH_TEST(VARIABLE, PROG-TO-CHECK-FOR,
-dnl   TEST-PERFORMED-ON-FOUND_PROGRAM [, VALUE-IF-NOT-FOUND [, PATH]])
-AC_DEFUN([AM_PATH_PROG_WITH_TEST],
-[# Extract the first word of "$2", so it can be a program name with args.
-set dummy $2; ac_word=[$]2
-AC_MSG_CHECKING([for $ac_word])
-AC_CACHE_VAL(ac_cv_path_$1,
-[case "[$]$1" in
-  /*)
-  ac_cv_path_$1="[$]$1" # Let the user override the test with a path.
-  ;;
-  *)
-  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}:"
-  for ac_dir in ifelse([$5], , $PATH, [$5]); do
-    test -z "$ac_dir" && ac_dir=.
-    if test -f $ac_dir/$ac_word; then
-      if [$3]; then
-	ac_cv_path_$1="$ac_dir/$ac_word"
-	break
-      fi
-    fi
-  done
-  IFS="$ac_save_ifs"
-dnl If no 4th arg is given, leave the cache variable unset,
-dnl so AC_PATH_PROGS will keep looking.
-ifelse([$4], , , [  test -z "[$]ac_cv_path_$1" && ac_cv_path_$1="$4"
-])dnl
-  ;;
-esac])dnl
-$1="$ac_cv_path_$1"
-if test ifelse([$4], , [-n "[$]$1"], ["[$]$1" != "$4"]); then
-  AC_MSG_RESULT([$]$1)
-else
-  AC_MSG_RESULT(no)
-fi
-AC_SUBST($1)dnl
-])

m4/stdint_h.m4

@@ -1,28 +0,0 @@
-# stdint_h.m4 serial 2 (gettext-0.11.4)
-dnl Copyright (C) 1997-2002 Free Software Foundation, Inc.
-dnl This file is free software, distributed under the terms of the GNU
-dnl General Public License.  As a special exception to the GNU General
-dnl Public License, this file may be distributed as part of a program
-dnl that contains a configuration script generated by Autoconf, under
-dnl the same distribution terms as the rest of that program.
-
-dnl From Paul Eggert.
-
-# Define HAVE_STDINT_H_WITH_UINTMAX if <stdint.h> exists,
-# doesn't clash with <sys/types.h>, and declares uintmax_t.
-
-AC_DEFUN([jm_AC_HEADER_STDINT_H],
-[
-  AC_CACHE_CHECK([for stdint.h], jm_ac_cv_header_stdint_h,
-  [AC_TRY_COMPILE(
-    [#include <sys/types.h>
-#include <stdint.h>],
-    [uintmax_t i = (uintmax_t) -1;],
-    jm_ac_cv_header_stdint_h=yes,
-    jm_ac_cv_header_stdint_h=no)])
-  if test $jm_ac_cv_header_stdint_h = yes; then
-    AC_DEFINE_UNQUOTED(HAVE_STDINT_H_WITH_UINTMAX, 1,
-[Define if <stdint.h> exists, doesn't clash with <sys/types.h>,
-   and declares uintmax_t. ])
-  fi
-])

m4/uintmax_t.m4

@@ -1,29 +0,0 @@
-# uintmax_t.m4 serial 6 (gettext-0.11)
-dnl Copyright (C) 1997-2002 Free Software Foundation, Inc.
-dnl This file is free software, distributed under the terms of the GNU
-dnl General Public License.  As a special exception to the GNU General
-dnl Public License, this file may be distributed as part of a program
-dnl that contains a configuration script generated by Autoconf, under
-dnl the same distribution terms as the rest of that program.
-
-dnl From Paul Eggert.
-
-AC_PREREQ(2.13)
-
-# Define uintmax_t to `unsigned long' or `unsigned long long'
-# if <inttypes.h> does not exist.
-
-AC_DEFUN([jm_AC_TYPE_UINTMAX_T],
-[
-  AC_REQUIRE([jm_AC_HEADER_INTTYPES_H])
-  AC_REQUIRE([jm_AC_HEADER_STDINT_H])
-  if test $jm_ac_cv_header_inttypes_h = no && test $jm_ac_cv_header_stdint_h = no; then
-    AC_REQUIRE([jm_AC_TYPE_UNSIGNED_LONG_LONG])
-    test $ac_cv_type_unsigned_long_long = yes \
-      && ac_type='unsigned long long' \
-      || ac_type='unsigned long'
-    AC_DEFINE_UNQUOTED(uintmax_t, $ac_type,
-  [Define to unsigned long or unsigned long long
-   if <inttypes.h> and <stdint.h> don't define.])
-  fi
-])

m4/ulonglong.m4

@@ -1,23 +0,0 @@
-# ulonglong.m4 serial 2 (fileutils-4.0.32, gettext-0.10.40)
-dnl Copyright (C) 1999-2002 Free Software Foundation, Inc.
-dnl This file is free software, distributed under the terms of the GNU
-dnl General Public License.  As a special exception to the GNU General
-dnl Public License, this file may be distributed as part of a program
-dnl that contains a configuration script generated by Autoconf, under
-dnl the same distribution terms as the rest of that program.
-
-dnl From Paul Eggert.
-
-AC_DEFUN([jm_AC_TYPE_UNSIGNED_LONG_LONG],
-[
-  AC_CACHE_CHECK([for unsigned long long], ac_cv_type_unsigned_long_long,
-  [AC_TRY_LINK([unsigned long long ull = 1; int i = 63;],
-    [unsigned long long ullmax = (unsigned long long) -1;
-     return ull << i | ull >> i | ullmax / ull | ullmax % ull;],
-    ac_cv_type_unsigned_long_long=yes,
-    ac_cv_type_unsigned_long_long=no)])
-  if test $ac_cv_type_unsigned_long_long = yes; then
-    AC_DEFINE(HAVE_UNSIGNED_LONG_LONG, 1,
-      [Define if you have the unsigned long long type.])
-  fi
-])

po/.gitignore

@@ -1,6 +1,7 @@
 /*.gmo
 
 /Makefile.in.in
+/Makevars.template
 /Rules-quot
 /boldquot.sed
 /en@boldquot.header
@@ -8,4 +9,6 @@
 /insert-header.sin
 /POTFILES
 /quot.sed
+/remove-potcdate.sed
 /remove-potcdate.sin
+/stamp-po

src/Makefile.am

@@ -1,4 +1,5 @@
-AM_CPPFLAGS = -DLOCALEDIR=\"$(localedir)\" -DSYSCONFDIR=\"$(sysconfdir)\"
+AM_CPPFLAGS = -DLOCALEDIR=\"$(localedir)\" -DSYSCONFDIR=\"$(sysconfdir)\" \
+	-I$(top_builddir)/lib -I$(top_srcdir)/lib
 
 CLEANFILES = revision.h
 
@@ -37,7 +38,7 @@ nano_SOURCES =	browser.c \
 		utils.c \
 		winio.c 
 
-nano_LDADD = @GLIB_LIBS@ @LIBINTL@
+nano_LDADD = @LIBINTL@ $(top_builddir)/lib/libgnu.a
 
 install-exec-hook:
 	cd $(DESTDIR)$(bindir) && rm -f rnano && $(LN_S) nano rnano

src/browser.c

@@ -297,7 +297,7 @@ char *do_browser(char *path)
 	    /* If we are moving up one level, remember where we came from, so
 	     * this directory can be highlighted and easily reentered. */
 	    if (strcmp(tail(filelist[selected]), "..") == 0)
-		present_name = striponedir(filelist[selected]);
+		present_name = strip_last_component(filelist[selected]);
 
 	    /* Try opening and reading the selected directory. */
 	    path = mallocstrcpy(path, filelist[selected]);
@@ -353,7 +353,7 @@ char *do_browse_from(const char *inpath)
      * at all.  If so, we'll just pass the current directory to
      * do_browser(). */
     if (stat(path, &st) == -1 || !S_ISDIR(st.st_mode)) {
-	path = free_and_assign(path, striponedir(path));
+	path = free_and_assign(path, strip_last_component(path));
 
 	if (stat(path, &st) == -1 || !S_ISDIR(st.st_mode)) {
 	    char * currentdir = charalloc(PATH_MAX + 1);
@@ -467,6 +467,10 @@ functionptrtype parse_browser_input(int *kbinput)
 		return do_help_void;
 	    case 'E':
 	    case 'e':
+	    case 'Q':
+	    case 'q':
+	    case 'X':
+	    case 'x':
 		return do_exit;
 	    case 'G':
 	    case 'g':
@@ -587,7 +591,7 @@ void browser_refresh(void)
 	/* Make sure info takes up no more than infomaxlen columns. */
 	infolen = strlenpt(info);
 	if (infolen > infomaxlen) {
-	    null_at(&info, actual_x(info, infomaxlen));
+	    info[actual_x(info, infomaxlen)] = '\0';
 	    infolen = infomaxlen;
 	}
 
@@ -781,21 +785,17 @@ void do_last_file(void)
     selected = filelist_len - 1;
 }
 
-/* Strip one directory from the end of path, and return the stripped
- * path.  The returned string is dynamically allocated, and should be
- * freed. */
-char *striponedir(const char *path)
+/* Strip one element from the end of path, and return the stripped path.
+ * The returned string is dynamically allocated, and should be freed. */
+char *strip_last_component(const char *path)
 {
-    char *retval, *tmp;
+    char *copy = mallocstrcpy(NULL, path);
+    char *last_slash = strrchr(copy, '/');
 
-    retval = mallocstrcpy(NULL, path);
+    if (last_slash != NULL)
+	*last_slash = '\0';
 
-    tmp = strrchr(retval, '/');
-
-    if (tmp != NULL)
-	null_at(&retval, tmp - retval);
-
-    return retval;
+    return copy;
 }
 
 #endif /* !DISABLE_BROWSER */

src/chars.c

@@ -26,12 +26,8 @@
 #include <ctype.h>
 
 #ifdef ENABLE_UTF8
-#ifdef HAVE_WCHAR_H
 #include <wchar.h>
-#endif
-#ifdef HAVE_WCTYPE_H
 #include <wctype.h>
-#endif
 
 static bool use_utf8 = FALSE;
 	/* Whether we've enabled UTF-8 support. */
@@ -61,22 +57,6 @@ char *addstrings(char* str1, size_t len1, char* str2, size_t len2)
     return str1;
 }
 
-#ifndef HAVE_ISBLANK
-/* This function is equivalent to isblank(). */
-bool nisblank(int c)
-{
-    return isspace(c) && (c == '\t' || !is_cntrl_char(c));
-}
-#endif
-
-#if !defined(HAVE_ISWBLANK) && defined(ENABLE_UTF8)
-/* This function is equivalent to iswblank(). */
-bool niswblank(wchar_t wc)
-{
-    return iswspace(wc) && (wc == '\t' || !is_cntrl_wchar(wc));
-}
-#endif
-
 /* Return TRUE if the value of c is in byte range, and FALSE otherwise. */
 bool is_byte(int c)
 {
@@ -450,36 +430,12 @@ size_t move_mbright(const char *buf, size_t pos)
     return pos + parse_mbchar(buf + pos, NULL, NULL);
 }
 
-#ifndef HAVE_STRCASECMP
-/* This function is equivalent to strcasecmp(). */
-int nstrcasecmp(const char *s1, const char *s2)
-{
-    return strncasecmp(s1, s2, HIGHEST_POSITIVE);
-}
-#endif
-
 /* This function is equivalent to strcasecmp() for multibyte strings. */
 int mbstrcasecmp(const char *s1, const char *s2)
 {
     return mbstrncasecmp(s1, s2, HIGHEST_POSITIVE);
 }
 
-#ifndef HAVE_STRNCASECMP
-/* This function is equivalent to strncasecmp(). */
-int nstrncasecmp(const char *s1, const char *s2, size_t n)
-{
-    if (s1 == s2)
-	return 0;
-
-    for (; *s1 != '\0' && *s2 != '\0' && n > 0; s1++, s2++, n--) {
-	if (tolower(*s1) != tolower(*s2))
-	    break;
-    }
-
-    return (n > 0) ? tolower(*s1) - tolower(*s2) : 0;
-}
-#endif
-
 /* This function is equivalent to strncasecmp() for multibyte strings. */
 int mbstrncasecmp(const char *s1, const char *s2, size_t n)
 {
@@ -524,28 +480,6 @@ int mbstrncasecmp(const char *s1, const char *s2, size_t n)
 	return strncasecmp(s1, s2, n);
 }
 
-#ifndef HAVE_STRCASESTR
-/* This function is equivalent to strcasestr(). */
-char *nstrcasestr(const char *haystack, const char *needle)
-{
-    size_t needle_len;
-
-    if (*needle == '\0')
-	return (char *)haystack;
-
-    needle_len = strlen(needle);
-
-    while (*haystack != '\0') {
-	if (strncasecmp(haystack, needle, needle_len) == 0)
-	    return (char *)haystack;
-
-	haystack++;
-    }
-
-    return NULL;
-}
-#endif
-
 /* This function is equivalent to strcasestr() for multibyte strings. */
 char *mbstrcasestr(const char *haystack, const char *needle)
 {
@@ -665,19 +599,6 @@ size_t mbstrlen(const char *s)
     return mbstrnlen(s, (size_t)-1);
 }
 
-#ifndef HAVE_STRNLEN
-/* This function is equivalent to strnlen(). */
-size_t nstrnlen(const char *s, size_t maxlen)
-{
-    size_t n = 0;
-
-    for (; *s != '\0' && maxlen > 0; s++, maxlen--, n++)
-	;
-
-    return n;
-}
-#endif
-
 /* This function is equivalent to strnlen() for multibyte strings. */
 size_t mbstrnlen(const char *s, size_t maxlen)
 {
@@ -815,7 +736,7 @@ char *mbrevstrpbrk(const char *s, const char *accept, const char
 bool has_blank_chars(const char *s)
 {
     for (; *s != '\0'; s++) {
-	if (isblank(*s))
+	if (isblank((unsigned char)*s))
 	    return TRUE;
     }
 

src/cut.c

@@ -225,6 +225,7 @@ void do_copy_text(void)
 
     /* Remember the current viewport and cursor position. */
     ssize_t is_edittop_lineno = openfile->edittop->lineno;
+    size_t is_firstcolumn = openfile->firstcolumn;
     ssize_t is_current_lineno = openfile->current->lineno;
     size_t is_current_x = openfile->current_x;
 
@@ -239,6 +240,7 @@ void do_copy_text(void)
     if (mark_set) {
 	/* Restore the viewport and cursor position. */
 	openfile->edittop = fsfromline(is_edittop_lineno);
+	openfile->firstcolumn = is_firstcolumn;
 	openfile->current = fsfromline(is_current_lineno);
 	openfile->current_x = is_current_x;
     }
@@ -257,6 +259,9 @@ void do_cut_till_eof(void)
 void do_uncut_text(void)
 {
     ssize_t was_lineno = openfile->current->lineno;
+	/* The line number where we started the paste. */
+    size_t was_leftedge = 0;
+	/* The leftedge where we started the paste. */
 
     /* If the cutbuffer is empty, there is nothing to do. */
     if (cutbuffer == NULL)
@@ -264,6 +269,9 @@ void do_uncut_text(void)
 
 #ifndef NANO_TINY
     add_undo(PASTE);
+
+    if (ISSET(SOFTWRAP))
+	was_leftedge = (xplustabs() / editwincols) * editwincols;
 #endif
 
     /* Add a copy of the text in the cutbuffer to the current filestruct
@@ -274,7 +282,8 @@ void do_uncut_text(void)
     update_undo(PASTE);
 #endif
 
-    if (openfile->current->lineno - was_lineno < editwinrows)
+    /* If we pasted less than a screenful, don't center the cursor. */
+    if (less_than_a_screenful(was_lineno, was_leftedge))
 	focusing = FALSE;
 
     /* Set the desired x position to where the pasted text ends. */
@@ -286,8 +295,6 @@ void do_uncut_text(void)
     /* Update the cursor position to account for the inserted lines. */
     reset_cursor();
 
-    ensure_line_is_visible();
-
     refresh_needed = TRUE;
 
 #ifndef DISABLE_COLOR

src/files.c

@@ -29,7 +29,9 @@
 #include <fcntl.h>
 #include <errno.h>
 #include <ctype.h>
+#ifdef HAVE_PWD_H
 #include <pwd.h>
+#endif
 #include <libgen.h>
 
 #define LOCKBUFSIZE 8192
@@ -91,7 +93,6 @@ void make_new_buffer(void)
 
     initialize_buffer_text();
 
-    openfile->current_x = 0;
     openfile->placewewant = 0;
     openfile->current_y = 0;
 
@@ -129,6 +130,8 @@ void initialize_buffer_text(void)
     openfile->edittop = openfile->fileage;
     openfile->current = openfile->fileage;
 
+    openfile->firstcolumn = 0;
+    openfile->current_x = 0;
     openfile->totsize = 0;
 }
 
@@ -146,13 +149,9 @@ void set_modified(void)
     if (!ISSET(LOCKING) || openfile->filename[0] == '\0')
 	return;
 
-    if (openfile->lock_filename == NULL) {
-	/* TRANSLATORS: Keep the next ten messages at most 76 characters. */
-//	statusline(ALERT, _("Warning: Modifying a file which is not locked,"
-//			" check directory permission?"));
-	;
-    } else {
+    if (openfile->lock_filename != NULL) {
 	char *fullname = get_full_path(openfile->filename);
+
 	write_lockfile(openfile->lock_filename, fullname, TRUE);
 	free(fullname);
     }
@@ -172,6 +171,7 @@ void set_modified(void)
  * Returns 1 on success, and 0 on failure (but continue anyway). */
 int write_lockfile(const char *lockfilename, const char *origfilename, bool modified)
 {
+#ifdef HAVE_PWD_H
     int cflags, fd;
     FILE *filestream;
     pid_t mypid;
@@ -188,6 +188,7 @@ int write_lockfile(const char *lockfilename, const char *origfilename, bool modi
 
     /* First run things that might fail before blowing away the old state. */
     if ((mypwuid = getpwuid(myuid)) == NULL) {
+	/* TRANSLATORS: Keep the next eight messages at most 76 characters. */
 	statusline(MILD, _("Couldn't determine my identity for lock file "
 				"(getpwuid() failed)"));
 	goto free_the_data;
@@ -287,6 +288,9 @@ int write_lockfile(const char *lockfilename, const char *origfilename, bool modi
   free_the_data:
     free(lockdata);
     return 0;
+#else
+    return 1;
+#endif
 }
 
 /* Delete the lockfile.  Return -1 if unsuccessful, and 1 otherwise. */
@@ -548,6 +552,39 @@ void replace_buffer(const char *filename)
     /* Put current at a place that is certain to exist. */
     openfile->current = openfile->fileage;
 }
+
+#ifndef NANO_TINY
+/* Open the specified file, and if that succeeds, blow away the text of
+ * the current buffer at the given coordinates and read the file
+ * contents into its place. */
+void replace_marked_buffer(const char *filename, filestruct *top, size_t top_x,
+	filestruct *bot, size_t bot_x)
+{
+    FILE *f;
+    int descriptor;
+    bool old_no_newlines = ISSET(NO_NEWLINES);
+    filestruct *trash_top = NULL;
+    filestruct *trash_bot = NULL;
+
+    descriptor = open_file(filename, FALSE, TRUE, &f);
+
+    if (descriptor < 0)
+	return;
+
+    /* Don't add a magicline when replacing text in the buffer. */
+    SET(NO_NEWLINES);
+
+    /* Throw away the text under the mark, and insert the processed file
+     * where the marked text was. */
+    extract_buffer(&trash_top, &trash_bot, top, top_x, bot, bot_x);
+    free_filestruct(trash_top);
+    read_file(f, descriptor, filename, FALSE, TRUE);
+
+    /* Restore the magicline behavior now that we're done fiddling. */
+    if (!old_no_newlines)
+	UNSET(NO_NEWLINES);
+}
+#endif /* !ENABLE_TINY */
 #endif /* !DISABLE_SPELLER */
 
 /* Update the screen to account for the current buffer. */
@@ -591,6 +628,14 @@ void switch_to_prevnext_buffer(bool to_next)
     fprintf(stderr, "filename is %s\n", openfile->filename);
 #endif
 
+#ifndef NANO_TINY
+    /* When not in softwrap mode, make sure firstcolumn is zero.  It might
+     * be nonzero if we had softwrap mode on while in this buffer, and then
+     * turned softwrap mode off while in a different buffer. */
+    if (!ISSET(SOFTWRAP))
+	openfile->firstcolumn = 0;
+#endif
+
     /* Update the screen to account for the current buffer. */
     display_buffer();
 
@@ -686,44 +731,14 @@ int is_file_writable(const char *filename)
     return result;
 }
 
-/* Make a new line of text from the given buf, which is of length buf_len.
- * Then attach this line after prevnode. */
-filestruct *read_line(char *buf, size_t buf_len, filestruct *prevnode)
+/* Encode any NUL bytes in the given line of text, which is of length buf_len,
+ * and return a dynamically allocated copy of the resultant string. */
+char *encode_data(char *buf, size_t buf_len)
 {
-    filestruct *freshline = (filestruct *)nmalloc(sizeof(filestruct));
-
-    /* Convert nulls to newlines.  buf_len is the string's real length. */
     unsunder(buf, buf_len);
     buf[buf_len] = '\0';
 
-    assert(openfile->fileage != NULL && strlen(buf) == buf_len);
-
-#ifndef NANO_TINY
-    /* If file conversion isn't disabled, strip a '\r' from the line. */
-    if (buf_len > 0 && buf[buf_len - 1] == '\r' && !ISSET(NO_CONVERT))
-	buf[buf_len - 1] = '\0';
-#endif
-
-    freshline->data = mallocstrcpy(NULL, buf);
-
-#ifndef DISABLE_COLOR
-    freshline->multidata = NULL;
-#endif
-
-    freshline->prev = prevnode;
-
-    if (prevnode == NULL) {
-	/* Special case: we're inserting into the first line. */
-	freshline->next = openfile->fileage;
-	openfile->fileage = freshline;
-	freshline->lineno = 1;
-    } else {
-	prevnode->next = freshline;
-	freshline->next = NULL;
-	freshline->lineno = prevnode->lineno + 1;
-    }
-
-    return freshline;
+    return mallocstrcpy(NULL, buf);
 }
 
 /* Read an open file into the current buffer.  f should be set to the
@@ -734,6 +749,10 @@ filestruct *read_line(char *buf, size_t buf_len, filestruct *prevnode)
 void read_file(FILE *f, int fd, const char *filename, bool undoable,
 		bool checkwritable)
 {
+    ssize_t was_lineno = openfile->current->lineno;
+	/* The line number where we start the insertion. */
+    size_t was_leftedge = 0;
+	/* The leftedge where we start the insertion. */
     size_t num_lines = 0;
 	/* The number of lines in the file. */
     size_t len = 0;
@@ -744,8 +763,10 @@ void read_file(FILE *f, int fd, const char *filename, bool undoable,
 	/* The buffer in which we assemble each line of the file. */
     size_t bufx = MAX_BUF_SIZE;
 	/* The allocated size of the line buffer; increased as needed. */
-    filestruct *fileptr = openfile->current->prev;
-	/* The line after which to start inserting. */
+    filestruct *topline;
+	/* The top of the new buffer where we store the read file. */
+    filestruct *bottomline;
+	/* The bottom of the new buffer. */
     int input_int;
 	/* The current value we read from the file, whether an input
 	 * character or EOF. */
@@ -761,9 +782,16 @@ void read_file(FILE *f, int fd, const char *filename, bool undoable,
 #ifndef NANO_TINY
     if (undoable)
 	add_undo(INSERT);
+
+    if (ISSET(SOFTWRAP))
+	was_leftedge = (xplustabs() / editwincols) * editwincols;
 #endif
 
-    /* Read the entire file into the filestruct. */
+    /* Create an empty buffer. */
+    topline = make_new_node(NULL);
+    bottomline = topline;
+
+    /* Read the entire file into the new buffer. */
     while ((input_int = getc(f)) != EOF) {
 	input = (char)input_int;
 
@@ -780,14 +808,6 @@ void read_file(FILE *f, int fd, const char *filename, bool undoable,
 		if (format == 0 || format == 2)
 		    format++;
 	    }
-#endif
-	    /* Read in the line properly. */
-	    fileptr = read_line(buf, len, fileptr);
-	    num_lines++;
-
-	    /* Reset the length in preparation for the next line. */
-	    len = 0;
-#ifndef NANO_TINY
 	/* If it's a Mac file ('\r' without '\n' on the first line if we
 	 * think it's a *nix file, or on any line otherwise), and file
 	 * conversion isn't disabled, handle it! */
@@ -798,15 +818,6 @@ void read_file(FILE *f, int fd, const char *filename, bool undoable,
 	     * set format to both DOS and Mac. */
 	    if (format == 0 || format == 1)
 		format += 2;
-
-	    /* Read in the line properly. */
-	    fileptr = read_line(buf, len, fileptr);
-	    num_lines++;
-
-	    /* Store the character after the \r as the first character
-	     * of the next line. */
-	    buf[0] = input;
-	    len = 1;
 #endif
 	} else {
 	    /* Store the character. */
@@ -822,7 +833,30 @@ void read_file(FILE *f, int fd, const char *filename, bool undoable,
 		bufx += MAX_BUF_SIZE;
 		buf = charealloc(buf, bufx);
 	    }
+	    continue;
 	}
+
+#ifndef NANO_TINY
+	/* If it's a DOS or Mac line, strip the '\r' from it. */
+	if (len > 0 && buf[len - 1] == '\r' && !ISSET(NO_CONVERT))
+	    buf[--len] = '\0';
+#endif
+
+	/* Store the data and make a new line. */
+	bottomline->data = encode_data(buf, len);
+	bottomline->next = make_new_node(bottomline);
+	bottomline = bottomline->next;
+	num_lines++;
+
+	/* Reset the length in preparation for the next line. */
+	len = 0;
+
+#ifndef NANO_TINY
+	/* If it happens to be a Mac line, store the character after the \r
+	 * as the first character of the next line. */
+	if (input != '\n')
+	    buf[len++] = input;
+#endif
     }
 
     /* Perhaps this could use some better handling. */
@@ -834,78 +868,43 @@ void read_file(FILE *f, int fd, const char *filename, bool undoable,
 	writable = is_file_writable(filename);
     }
 
-    /* Did we not get a newline and still have stuff to do? */
-    if (len > 0) {
+    /* If the file ended with newline, or it was entirely empty, make the
+     * last line blank.  Otherwise, put the last read data in. */
+    if (len == 0)
+	bottomline->data = mallocstrcpy(NULL, "");
+    else {
+	bool mac_line_needs_newline = FALSE;
+
 #ifndef NANO_TINY
-	/* If file conversion isn't disabled and the last character in
-	 * this file is '\r', set format to Mac if we currently think
-	 * the file is a *nix file, or to both DOS and Mac if we
-	 * currently think the file is a DOS file. */
-	if (buf[len - 1] == '\r' && !ISSET(NO_CONVERT) && format < 2)
-	    format += 2;
+	/* If the final character is '\r', and file conversion isn't disabled,
+	 * set format to Mac if we currently think the file is a *nix file, or
+	 * to DOS-and-Mac if we currently think it is a DOS file. */
+	if (buf[len - 1] == '\r' && !ISSET(NO_CONVERT)) {
+	    if (format < 2)
+		format += 2;
+
+	    /* Strip the carriage return. */
+	    buf[--len] = '\0';
+
+	    /* Indicate we need to put a blank line in after this one. */
+	    mac_line_needs_newline = TRUE;
+	}
 #endif
-	/* Read in the last line properly. */
-	fileptr = read_line(buf, len, fileptr);
+	/* Store the data of the final line. */
+	bottomline->data = encode_data(buf, len);
 	num_lines++;
+
+	if (mac_line_needs_newline) {
+	    bottomline->next = make_new_node(bottomline);
+	    bottomline = bottomline->next;
+	    bottomline->data = mallocstrcpy(NULL, "");
+	}
     }
 
     free(buf);
 
-    /* Attach the file we got to the filestruct.  If we got a file of
-     * zero bytes, don't do anything. */
-    if (num_lines > 0) {
-	/* If the file we got doesn't end in a newline (nor in a Mac return),
-	 * tack its last line onto the beginning of the line at current. */
-	if (len > 0 && (input != '\r' || ISSET(NO_CONVERT))) {
-	    filestruct *dropline = fileptr;
-	    size_t current_len = strlen(openfile->current->data);
-
-	    /* Adjust the current x-coordinate to compensate for the
-	     * change in the current line. */
-	    if (num_lines == 1)
-		openfile->current_x += len;
-	    else
-		openfile->current_x = len;
-
-	    /* Tack the text at fileptr onto the beginning of the text
-	     * at current. */
-	    openfile->current->data = charealloc(openfile->current->data,
-						len + current_len + 1);
-	    charmove(openfile->current->data + len, openfile->current->data,
-			current_len + 1);
-	    strncpy(openfile->current->data, fileptr->data, len);
-
-	    /* Step back one line, and blow away the unterminated line,
-	     * since its text has been copied into current. */
-	    fileptr = fileptr->prev;
-	    delete_node(dropline);
-	}
-
-	if (fileptr == NULL)
-	    /* After inserting a single unterminated line at the top,
-	     * readjust the top-of-file pointer. */
-	    openfile->fileage = openfile->current;
-	else {
-	    /* Attach the line at current after the line at fileptr. */
-	    fileptr->next = openfile->current;
-	    openfile->current->prev = fileptr;
-	}
-
-	/* Renumber, starting with the last line of the file we inserted. */
-	renumber(openfile->current);
-    }
-
-    openfile->totsize += get_totsize(openfile->fileage, openfile->filebot);
-
-    /* If the NO_NEWLINES flag isn't set, and text has been added to
-     * the magicline (i.e. a file that doesn't end in a newline has been
-     * inserted at the end of the current buffer), add a new magicline,
-     * and move the current line down to it. */
-    if (!ISSET(NO_NEWLINES) && openfile->filebot->data[0] != '\0') {
-	new_magicline();
-	openfile->current = openfile->filebot;
-	openfile->current_x = 0;
-    }
+    /* Insert the just read buffer into the current one. */
+    ingraft_buffer(topline);
 
     /* Set the desired x position at the end of what was inserted. */
     openfile->placewewant = xplustabs();
@@ -934,7 +933,8 @@ void read_file(FILE *f, int fd, const char *filename, bool undoable,
 	statusline(HUSH, P_("Read %lu line", "Read %lu lines",
 			(unsigned long)num_lines), (unsigned long)num_lines);
 
-    if (num_lines < editwinrows)
+    /* If we inserted less than a screenful, don't center the cursor. */
+    if (less_than_a_screenful(was_lineno, was_leftedge))
 	focusing = FALSE;
 
 #ifndef NANO_TINY
@@ -1043,9 +1043,8 @@ char *get_next_filename(const char *name, const char *suffix)
 	sprintf(buf + wholenamelen, ".%lu", i);
     }
 
-    /* We get here only if there is no possible save file.  Blank out
-     * the filename to indicate this. */
-    null_at(&buf, 0);
+    /* There is no possible save file: blank out the filename. */
+    *buf = '\0';
 
     return buf;
 }
@@ -1059,7 +1058,7 @@ void do_insertfile(void)
     char *given = mallocstrcpy(NULL, "");
 	/* The last answer the user typed at the statusbar prompt. */
 #ifndef NANO_TINY
-    bool execute = FALSE, right_side_up = FALSE, single_line = FALSE;
+    bool execute = FALSE;
 #endif
 
     /* Display newlines in filenames as ^J. */
@@ -1080,10 +1079,10 @@ void do_insertfile(void)
 	{
 #ifndef DISABLE_MULTIBUFFER
 	    if (ISSET(MULTIBUFFER))
-		msg = _("File to insert into new buffer [from %s] ");
+		msg = _("File to insert into new buffer [from %s]");
 	    else
 #endif
-		msg = _("File to insert [from %s] ");
+		msg = _("File to insert [from %s]");
 	}
 
 	present_path = mallocstrcpy(present_path, "./");
@@ -1098,8 +1097,7 @@ void do_insertfile(void)
 #endif
 		edit_refresh, msg,
 #ifndef DISABLE_OPERATINGDIR
-		operating_dir != NULL && strcmp(operating_dir, ".") != 0 ?
-		operating_dir :
+		operating_dir != NULL ? operating_dir :
 #endif
 		"./");
 
@@ -1109,10 +1107,8 @@ void do_insertfile(void)
 	    statusbar(_("Cancelled"));
 	    break;
 	} else {
-	    filestruct *edittop_save = openfile->edittop;
 	    ssize_t was_current_lineno = openfile->current->lineno;
 	    size_t was_current_x = openfile->current_x;
-	    bool current_was_at_top = FALSE;
 #if !defined(NANO_TINY) || !defined(DISABLE_BROWSER)
 	    functionptrtype func = func_from_key(&i);
 #endif
@@ -1152,29 +1148,6 @@ void do_insertfile(void)
 	    if (i != 0 && (!ISSET(MULTIBUFFER) || i != -2))
 		continue;
 
-#ifndef NANO_TINY
-	    /* Keep track of whether the mark begins inside the
-	     * partition and will need adjustment. */
-	    if (openfile->mark_set) {
-		filestruct *top, *bot;
-		size_t top_x, bot_x;
-
-		mark_order((const filestruct **)&top, &top_x,
-			(const filestruct **)&bot, &bot_x, &right_side_up);
-
-		single_line = (top == bot);
-	    }
-#endif
-	    /* When not inserting into a new buffer, partition the filestruct
-	     * so that it contains no text and hence looks like a new buffer,
-	     * and remember whether the current line is the first on screen. */
-	    if (!ISSET(MULTIBUFFER)) {
-		filepart = partition_filestruct(openfile->current,
-			openfile->current_x, openfile->current,
-			openfile->current_x);
-		current_was_at_top = (openfile->edittop == openfile->fileage);
-	    }
-
 #ifndef NANO_TINY
 	    if (execute) {
 #ifndef DISABLE_MULTIBUFFER
@@ -1223,57 +1196,6 @@ void do_insertfile(void)
 	    } else
 #endif /* !DISABLE_MULTIBUFFER */
 	    {
-		filestruct *top_save = openfile->fileage;
-
-		/* If we were at the top of the edit window before, change the
-		 * saved value of edittop to the start of inserted stuff. */
-		if (current_was_at_top)
-		    edittop_save = openfile->fileage;
-
-		/* Update the current x-coordinate to account for the
-		 * number of characters inserted on the current line.
-		 * If the mark was positioned after the cursor and on the
-		 * same line, adjust the mark's coordinates to compensate
-		 * for the change in this line. */
-		openfile->current_x = strlen(openfile->filebot->data);
-		if (openfile->fileage == openfile->filebot) {
-#ifndef NANO_TINY
-		    if (openfile->mark_set) {
-			openfile->mark_begin = openfile->current;
-			if (!right_side_up)
-			    openfile->mark_begin_x += openfile->current_x;
-		    }
-#endif
-		    openfile->current_x += was_current_x;
-		}
-#ifndef NANO_TINY
-		else if (openfile->mark_set) {
-		    if (!right_side_up) {
-			if (single_line) {
-			    openfile->mark_begin = openfile->current;
-			    openfile->mark_begin_x -= was_current_x;
-			} else
-			    openfile->mark_begin_x -= openfile->current_x;
-		    }
-		}
-#endif
-
-		/* Unpartition the filestruct so that it contains all
-		 * the text again.  Note that we've replaced the
-		 * non-text originally in the partition with the text in
-		 * the inserted file/executed command output. */
-		unpartition_filestruct(&filepart);
-
-		/* Renumber starting with the beginning line of the old
-		 * partition. */
-		renumber(top_save);
-
-		/* Restore the old edittop. */
-		openfile->edittop = edittop_save;
-
-		/* Set the desired x position to the current one. */
-		openfile->placewewant = xplustabs();
-
 		/* Mark the file as modified if it changed. */
 		if (openfile->current->lineno != was_current_lineno ||
 			openfile->current_x != was_current_x)
@@ -1282,8 +1204,6 @@ void do_insertfile(void)
 		/* Update the cursor position to account for inserted lines. */
 		reset_cursor();
 
-		ensure_line_is_visible();
-
 		refresh_needed = TRUE;
 	    }
 
@@ -1319,7 +1239,7 @@ char *get_full_path(const char *origpath)
 	/* How often we've tried climbing back up the tree. */
     struct stat fileinfo;
     char *currentdir, *d_here, *d_there, *d_there_file = NULL;
-    const char *last_slash;
+    char *last_slash;
     bool path_only;
 
     if (origpath == NULL)
@@ -1385,7 +1305,7 @@ char *get_full_path(const char *origpath)
 	    d_there_file = mallocstrcpy(NULL, last_slash + 1);
 
 	/* Remove the filename portion of the answer from d_there. */
-	null_at(&d_there, last_slash - d_there + 1);
+	*(last_slash + 1) = '\0';
 
 	/* Go to the path specified in d_there. */
 	if (chdir(d_there) == -1) {
@@ -1521,7 +1441,7 @@ void init_operating_dir(void)
 
     /* If the operating directory is inaccessible, fail. */
     if (full_operating_dir == NULL || chdir(full_operating_dir) == -1)
-	die("Invalid operating directory\n");
+	die(_("Invalid operating directory\n"));
 
     snuggly_fit(&full_operating_dir);
 }
@@ -2442,6 +2362,7 @@ char *real_dir_from_tilde(const char *buf)
 	    get_homedir();
 	    tilde_dir = mallocstrcpy(NULL, homedir);
 	} else {
+#ifdef HAVE_PWD_H
 	    const struct passwd *userdata;
 
 	    tilde_dir = mallocstrncpy(NULL, buf, i + 1);
@@ -2454,6 +2375,9 @@ char *real_dir_from_tilde(const char *buf)
 	    endpwent();
 	    if (userdata != NULL)
 		tilde_dir = mallocstrcpy(tilde_dir, userdata->pw_dir);
+#else
+	    tilde_dir = strdup("");
+#endif
 	}
 
 	retval = charalloc(strlen(tilde_dir) + strlen(buf + i) + 1);
@@ -2544,12 +2468,14 @@ char **username_tab_completion(const char *buf, size_t *num_matches,
 	size_t buf_len)
 {
     char **matches = NULL;
-    const struct passwd *userdata;
 
     assert(buf != NULL && num_matches != NULL && buf_len > 0);
 
     *num_matches = 0;
 
+#ifdef HAVE_PWD_H
+    const struct passwd *userdata;
+
     while ((userdata = getpwent()) != NULL) {
 	if (strncmp(userdata->pw_name, buf + 1, buf_len - 1) == 0) {
 	    /* Cool, found a match.  Add it to the list.  This makes a
@@ -2570,6 +2496,7 @@ char **username_tab_completion(const char *buf, size_t *num_matches,
 	}
     }
     endpwent();
+#endif
 
     return matches;
 }
@@ -2587,7 +2514,7 @@ char **cwd_tab_completion(const char *buf, bool allow_files, size_t
     const struct dirent *nextdir;
 
     *num_matches = 0;
-    null_at(&dirname, buf_len);
+    dirname[buf_len] = '\0';
 
     /* If there's a / in the name, split out filename and directory parts. */
     slash = strrchr(dirname, '/');

src/global.c

@@ -94,8 +94,6 @@ WINDOW *bottomwin;
 	 * messages, the statusbar prompt, and a list of shortcuts. */
 int editwinrows = 0;
 	/* How many rows does the edit window take up? */
-int maxlines = 0;
-	/* How many file lines can be shown (due to soft wrapping). */
 
 filestruct *cutbuffer = NULL;
 	/* The buffer where we store cut text. */
@@ -124,17 +122,12 @@ char *brackets = NULL;
 	 * can end sentences. */
 char *quotestr = NULL;
 	/* The quoting string.  The default value is set in main(). */
-#ifdef HAVE_REGEX_H
 regex_t quotereg;
 	/* The compiled regular expression from the quoting string. */
 int quoterc;
 	/* Whether it was compiled successfully. */
 char *quoteerr = NULL;
 	/* The error message, if it didn't. */
-#else
-size_t quotelen;
-	/* The length of the quoting string in bytes. */
-#endif
 #endif /* !DISABLE_JUSTIFY */
 
 char *word_chars = NULL;
@@ -212,13 +205,11 @@ poshiststruct *position_history = NULL;
 	/* The cursor position history list. */
 #endif
 
-#ifdef HAVE_REGEX_H
 regex_t search_regexp;
 	/* The compiled regular expression to use in searches. */
 regmatch_t regmatches[10];
 	/* The match positions for parenthetical subexpressions, 10
 	 * maximum, used in regular expression searches. */
-#endif
 
 int hilite_attribute = A_REVERSE;
 	/* The curses attribute we use to highlight something. */
@@ -431,7 +422,7 @@ void assign_keyinfo(sc *s, const char *keystring, const int keycode)
 	if (strcasecmp(keystring, "M-Space") == 0)
 	    s->keycode = (int)' ';
 	else
-	    s->keycode = tolower((int)keystring[2]);
+	    s->keycode = tolower((unsigned char)keystring[2]);
     } else if (keystring[0] == 'F')
 	s->keycode = KEY_F0 + atoi(&keystring[1]);
     else if (!strcasecmp(keystring, "Ins"))
@@ -508,8 +499,10 @@ void shortcut_init(void)
 #ifndef DISABLE_BROWSER
     const char *nano_browser_whereis_msg = N_("Search for a string");
     const char *nano_browser_refresh_msg = N_("Refresh the file list");
+#ifndef NANO_TINY
     const char *nano_browser_lefthand_msg = N_("Go to lefthand column");
     const char *nano_browser_righthand_msg = N_("Go to righthand column");
+#endif
 #endif
     const char *nano_prevpage_msg = N_("Go one screenful up");
     const char *nano_nextpage_msg = N_("Go one screenful down");
@@ -523,9 +516,9 @@ void shortcut_init(void)
 #endif
     const char *nano_replace_msg = N_("Replace a string or a regular expression");
     const char *nano_gotoline_msg = N_("Go to line and column number");
+    const char *nano_whereis_next_msg = N_("Repeat the last search");
 #ifndef NANO_TINY
     const char *nano_mark_msg = N_("Mark text starting from the cursor position");
-    const char *nano_whereis_next_msg = N_("Repeat the last search");
     const char *nano_copy_msg =
 	N_("Copy the current line and store it in the cutbuffer");
     const char *nano_indent_msg = N_("Indent the current line");
@@ -598,15 +591,13 @@ void shortcut_init(void)
     const char *nano_savefile_msg = N_("Save file without prompting");
     const char *nano_findprev_msg = N_("Search next occurrence backward");
     const char *nano_findnext_msg = N_("Search next occurrence forward");
+#endif
     const char *nano_case_msg =
 	N_("Toggle the case sensitivity of the search");
     const char *nano_reverse_msg =
 	N_("Reverse the direction of the search");
-#endif
-#ifdef HAVE_REGEX_H
     const char *nano_regexp_msg =
 	N_("Toggle the use of regular expressions");
-#endif
 #ifndef DISABLE_HISTORIES
     const char *nano_prev_history_msg =
 	N_("Recall the previous search/replace string");
@@ -761,12 +752,22 @@ void shortcut_init(void)
 	gotoline_tag, IFSCHELP(nano_gotoline_msg), BLANKAFTER, VIEW);
 #endif
 
+#ifndef NANO_TINY
+    add_to_funcs(do_undo, MMAIN,
+	N_("Undo"), IFSCHELP(nano_undo_msg), TOGETHER, NOVIEW);
+    add_to_funcs(do_redo, MMAIN,
+	N_("Redo"), IFSCHELP(nano_redo_msg), BLANKAFTER, NOVIEW);
+
+    add_to_funcs(do_mark, MMAIN,
+	N_("Mark Text"), IFSCHELP(nano_mark_msg), TOGETHER, VIEW);
+    add_to_funcs(do_copy_text, MMAIN,
+	N_("Copy Text"), IFSCHELP(nano_copy_msg), BLANKAFTER, NOVIEW);
+#endif
+
     add_to_funcs(case_sens_void, MWHEREIS|MREPLACE,
 	N_("Case Sens"), IFSCHELP(nano_case_msg), TOGETHER, VIEW);
-#ifdef HAVE_REGEX_H
     add_to_funcs(regexp_void, MWHEREIS|MREPLACE,
 	N_("Regexp"), IFSCHELP(nano_regexp_msg), TOGETHER, VIEW);
-#endif
     add_to_funcs(backwards_void, MWHEREIS|MREPLACE,
 	N_("Backwards"), IFSCHELP(nano_reverse_msg), TOGETHER, VIEW);
 
@@ -784,45 +785,23 @@ void shortcut_init(void)
 	gotoline_tag, IFSCHELP(nano_gotoline_msg), BLANKAFTER, VIEW);
 #endif
 
-    add_to_funcs(do_page_up, MMAIN|MHELP,
-	prev_page_tag, IFSCHELP(nano_prevpage_msg), TOGETHER, VIEW);
-    add_to_funcs(do_page_down, MMAIN|MHELP,
-	next_page_tag, IFSCHELP(nano_nextpage_msg), TOGETHER, VIEW);
-
-    add_to_funcs(do_first_line, MMAIN|MHELP|MWHEREIS|MREPLACE|MREPLACEWITH|MGOTOLINE,
-	N_("First Line"), IFSCHELP(nano_firstline_msg), TOGETHER, VIEW);
-    add_to_funcs(do_last_line, MMAIN|MHELP|MWHEREIS|MREPLACE|MREPLACEWITH|MGOTOLINE,
-	N_("Last Line"), IFSCHELP(nano_lastline_msg), BLANKAFTER, VIEW);
-
 #ifndef NANO_TINY
+    add_to_funcs(do_find_bracket, MMAIN,
+	N_("To Bracket"), IFSCHELP(nano_bracket_msg), BLANKAFTER, VIEW);
+
     add_to_funcs(do_research, MMAIN,
 	whereis_next_tag, IFSCHELP(nano_whereis_next_msg), TOGETHER, VIEW);
 
-    add_to_funcs(do_find_bracket, MMAIN,
-	N_("To Bracket"), IFSCHELP(nano_bracket_msg), TOGETHER, VIEW);
-
-    add_to_funcs(do_mark, MMAIN,
-	N_("Mark Text"), IFSCHELP(nano_mark_msg), TOGETHER, VIEW);
-
-    add_to_funcs(do_copy_text, MMAIN,
-	N_("Copy Text"), IFSCHELP(nano_copy_msg), BLANKAFTER, NOVIEW);
-
-    add_to_funcs(do_indent_void, MMAIN,
-	N_("Indent Text"), IFSCHELP(nano_indent_msg), TOGETHER, NOVIEW);
-    add_to_funcs(do_unindent, MMAIN,
-	N_("Unindent Text"), IFSCHELP(nano_unindent_msg), BLANKAFTER, NOVIEW);
-
-    add_to_funcs(do_undo, MMAIN,
-	N_("Undo"), IFSCHELP(nano_undo_msg), TOGETHER, NOVIEW);
-    add_to_funcs(do_redo, MMAIN,
-	N_("Redo"), IFSCHELP(nano_redo_msg), BLANKAFTER, NOVIEW);
+    add_to_funcs(do_findprevious, MMAIN,
+	N_("Previous"), IFSCHELP(nano_findprev_msg), TOGETHER, VIEW);
+    add_to_funcs(do_findnext, MMAIN,
+	N_("Next"), IFSCHELP(nano_findnext_msg), BLANKAFTER, VIEW);
 #endif /* !NANO_TINY */
 
     add_to_funcs(do_left, MMAIN,
 	N_("Back"), IFSCHELP(nano_back_msg), TOGETHER, VIEW);
     add_to_funcs(do_right, MMAIN,
 	N_("Forward"), IFSCHELP(nano_forward_msg), TOGETHER, VIEW);
-
 #ifndef DISABLE_BROWSER
     add_to_funcs(do_left, MBROWSER,
 	N_("Back"), IFSCHELP(nano_backfile_msg), TOGETHER, VIEW);
@@ -835,28 +814,15 @@ void shortcut_init(void)
     add_to_funcs(do_next_word_void, MMAIN,
 	N_("Next Word"), IFSCHELP(nano_nextword_msg), TOGETHER, VIEW);
 
-    add_to_funcs(do_home, MMAIN,
+    add_to_funcs(do_home_void, MMAIN,
 	N_("Home"), IFSCHELP(nano_home_msg), TOGETHER, VIEW);
-    add_to_funcs(do_end, MMAIN,
-	N_("End"), IFSCHELP(nano_end_msg), TOGETHER, VIEW);
+    add_to_funcs(do_end_void, MMAIN,
+	N_("End"), IFSCHELP(nano_end_msg), BLANKAFTER, VIEW);
 
     add_to_funcs(do_up_void, MMAIN|MBROWSER,
 	prev_line_tag, IFSCHELP(nano_prevline_msg), TOGETHER, VIEW);
     add_to_funcs(do_down_void, MMAIN|MBROWSER,
-	next_line_tag, IFSCHELP(nano_nextline_msg), BLANKAFTER, VIEW);
-
-    add_to_funcs(do_prev_block, MMAIN,
-	N_("Prev Block"), IFSCHELP(nano_prevblock_msg), TOGETHER, VIEW);
-    add_to_funcs(do_next_block, MMAIN,
-	N_("Next Block"), IFSCHELP(nano_nextblock_msg), TOGETHER, VIEW);
-
-#ifndef DISABLE_JUSTIFY
-    add_to_funcs(do_para_begin_void, MMAIN|MWHEREIS,
-	N_("Beg of Par"), IFSCHELP(nano_parabegin_msg), TOGETHER, VIEW);
-    add_to_funcs(do_para_end_void, MMAIN|MWHEREIS,
-	N_("End of Par"), IFSCHELP(nano_paraend_msg), TOGETHER, VIEW);
-#endif
-
+	next_line_tag, IFSCHELP(nano_nextline_msg), TOGETHER, VIEW);
 #ifndef NANO_TINY
     add_to_funcs(do_scroll_up, MMAIN,
 	N_("Scroll Up"), IFSCHELP(nano_scrollup_msg), TOGETHER, VIEW);
@@ -864,6 +830,27 @@ void shortcut_init(void)
 	N_("Scroll Down"), IFSCHELP(nano_scrolldown_msg), BLANKAFTER, VIEW);
 #endif
 
+    add_to_funcs(do_prev_block, MMAIN,
+	N_("Prev Block"), IFSCHELP(nano_prevblock_msg), TOGETHER, VIEW);
+    add_to_funcs(do_next_block, MMAIN,
+	N_("Next Block"), IFSCHELP(nano_nextblock_msg), TOGETHER, VIEW);
+#ifndef DISABLE_JUSTIFY
+    add_to_funcs(do_para_begin_void, MMAIN|MWHEREIS,
+	N_("Beg of Par"), IFSCHELP(nano_parabegin_msg), TOGETHER, VIEW);
+    add_to_funcs(do_para_end_void, MMAIN|MWHEREIS,
+	N_("End of Par"), IFSCHELP(nano_paraend_msg), BLANKAFTER, VIEW);
+#endif
+
+    add_to_funcs(do_page_up, MMAIN|MHELP,
+	prev_page_tag, IFSCHELP(nano_prevpage_msg), TOGETHER, VIEW);
+    add_to_funcs(do_page_down, MMAIN|MHELP,
+	next_page_tag, IFSCHELP(nano_nextpage_msg), TOGETHER, VIEW);
+
+    add_to_funcs(do_first_line, MMAIN|MHELP|MWHEREIS|MREPLACE|MREPLACEWITH|MGOTOLINE,
+	N_("First Line"), IFSCHELP(nano_firstline_msg), TOGETHER, VIEW);
+    add_to_funcs(do_last_line, MMAIN|MHELP|MWHEREIS|MREPLACE|MREPLACEWITH|MGOTOLINE,
+	N_("Last Line"), IFSCHELP(nano_lastline_msg), BLANKAFTER, VIEW);
+
 #ifndef DISABLE_MULTIBUFFER
     add_to_funcs(switch_to_prev_buffer_void, MMAIN,
 	N_("Prev File"), IFSCHELP(nano_prevfile_msg), TOGETHER, VIEW);
@@ -928,6 +915,12 @@ void shortcut_init(void)
     add_to_funcs(do_suspend_void, MMAIN,
 	N_("Suspend"), IFSCHELP(nano_suspend_msg), BLANKAFTER, VIEW);
 
+#ifndef NANO_TINY
+    add_to_funcs(do_indent_void, MMAIN,
+	N_("Indent Text"), IFSCHELP(nano_indent_msg), TOGETHER, NOVIEW);
+    add_to_funcs(do_unindent, MMAIN,
+	N_("Unindent Text"), IFSCHELP(nano_unindent_msg), BLANKAFTER, NOVIEW);
+#endif
 #ifdef ENABLE_WORDCOMPLETION
     add_to_funcs(complete_a_word, MMAIN,
 	N_("Complete"), IFSCHELP(nano_completion_msg), TOGETHER, NOVIEW);
@@ -939,11 +932,6 @@ void shortcut_init(void)
 #ifndef NANO_TINY
     add_to_funcs(do_savefile, MMAIN,
 	N_("Save"), IFSCHELP(nano_savefile_msg), BLANKAFTER, NOVIEW);
-
-    add_to_funcs(do_findprevious, MMAIN,
-	N_("Previous"), IFSCHELP(nano_findprev_msg), TOGETHER, VIEW);
-    add_to_funcs(do_findnext, MMAIN,
-	N_("Next"), IFSCHELP(nano_findnext_msg), BLANKAFTER, VIEW);
 #endif
 
 #ifndef DISABLE_HISTORIES
@@ -1018,11 +1006,9 @@ void shortcut_init(void)
     add_to_funcs(discard_buffer, MWRITEFILE,
 	N_("Discard buffer"), IFSCHELP(nano_discard_buffer_msg), BLANKAFTER, NOVIEW);
 
-#if !defined(NANO_TINY) && !defined(DISABLE_BROWSER)
+#ifndef DISABLE_BROWSER
     add_to_funcs(do_research, MBROWSER,
 	whereis_next_tag, IFSCHELP(nano_whereis_next_msg), TOGETHER, VIEW);
-#endif
-#ifndef DISABLE_BROWSER
     add_to_funcs(total_refresh, MBROWSER,
 	refresh_tag, IFSCHELP(nano_browser_refresh_msg), BLANKAFTER, VIEW);
 #ifndef NANO_TINY
@@ -1125,10 +1111,10 @@ void shortcut_init(void)
     }
     add_to_sclist(MMOST, "M-Space", 0, do_prev_word_void, 0);
     add_to_sclist(MMOST, "^Space", 0, do_next_word_void, 0);
-    add_to_sclist((MMOST & ~MBROWSER), "^A", 0, do_home, 0);
-    add_to_sclist((MMOST & ~MBROWSER), "Home", KEY_HOME, do_home, 0);
-    add_to_sclist((MMOST & ~MBROWSER), "^E", 0, do_end, 0);
-    add_to_sclist((MMOST & ~MBROWSER), "End", KEY_END, do_end, 0);
+    add_to_sclist((MMOST & ~MBROWSER), "^A", 0, do_home_void, 0);
+    add_to_sclist((MMOST & ~MBROWSER), "Home", KEY_HOME, do_home_void, 0);
+    add_to_sclist((MMOST & ~MBROWSER), "^E", 0, do_end_void, 0);
+    add_to_sclist((MMOST & ~MBROWSER), "End", KEY_END, do_end_void, 0);
     add_to_sclist(MMAIN|MHELP|MBROWSER, "^P", 0, do_up_void, 0);
     add_to_sclist(MMAIN|MHELP|MBROWSER, "Up", KEY_UP, do_up_void, 0);
     add_to_sclist(MMAIN|MHELP|MBROWSER, "^N", 0, do_down_void, 0);
@@ -1500,9 +1486,9 @@ sc *strtosc(const char *input)
 	     !strcasecmp(input, "nextline"))
 	s->scfunc = do_down_void;
     else if (!strcasecmp(input, "home"))
-	s->scfunc = do_home;
+	s->scfunc = do_home_void;
     else if (!strcasecmp(input, "end"))
-	s->scfunc = do_end;
+	s->scfunc = do_end_void;
     else if (!strcasecmp(input, "pageup") ||
 	     !strcasecmp(input, "prevpage"))
 	s->scfunc = do_page_up;
@@ -1697,11 +1683,9 @@ void thanks_for_all_the_fish(void)
     free(word_chars);
 #ifndef DISABLE_JUSTIFY
     free(quotestr);
-#ifdef HAVE_REGEX_H
     regfree(&quotereg);
     free(quoteerr);
 #endif
-#endif
 #ifndef NANO_TINY
     free(backup_dir);
 #endif

src/help.c

@@ -486,6 +486,10 @@ functionptrtype parse_help_input(int *kbinput)
 		return do_page_up;
 	    case 'E':
 	    case 'e':
+	    case 'Q':
+	    case 'q':
+	    case 'X':
+	    case 'x':
 		return do_exit;
 	}
     }

src/move.c

@@ -44,47 +44,55 @@ void do_last_line(void)
 
     /* Set the last line of the screen as the target for the cursor. */
     openfile->current_y = editwinrows - 1;
-    ensure_line_is_visible();
 
     refresh_needed = TRUE;
     focusing = FALSE;
 }
 
-/* Move up one page. */
+/* Determine the actual current chunk and the target column. */
+void get_edge_and_target(size_t *leftedge, size_t *target_column)
+{
+#ifndef NANO_TINY
+    if (ISSET(SOFTWRAP)) {
+	size_t realspan = strlenpt(openfile->current->data);
+
+	if (openfile->placewewant < realspan)
+	    realspan = openfile->placewewant;
+
+	*leftedge = (realspan / editwincols) * editwincols;
+	*target_column = openfile->placewewant % editwincols;
+    } else
+#endif
+    {
+	*leftedge = 0;
+	*target_column = openfile->placewewant;
+    }
+}
+
+/* Move up nearly one screenful. */
 void do_page_up(void)
 {
-    int i, mustmove, skipped = 0;
-
-    /* If the cursor is less than a page away from the top of the file,
-     * put it at the beginning of the first line. */
-    if (openfile->current->lineno == 1 || (!ISSET(SOFTWRAP) &&
-		openfile->current->lineno <= editwinrows - 2)) {
-	do_first_line();
-	return;
-    }
+    int mustmove = (editwinrows < 3) ? 1 : editwinrows - 2;
+    size_t leftedge, target_column;
 
     /* If we're not in smooth scrolling mode, put the cursor at the
      * beginning of the top line of the edit window, as Pico does. */
     if (!ISSET(SMOOTH_SCROLL)) {
 	openfile->current = openfile->edittop;
-	openfile->placewewant = openfile->current_y = 0;
+	openfile->placewewant = openfile->firstcolumn;
+	openfile->current_y = 0;
     }
 
-    mustmove = (editwinrows < 3) ? 1 : editwinrows - 2;
+    get_edge_and_target(&leftedge, &target_column);
 
-    for (i = mustmove; i - skipped > 0 && openfile->current != openfile->fileage; i--) {
-	openfile->current = openfile->current->prev;
-#ifndef NANO_TINY
-	if (ISSET(SOFTWRAP) && openfile->current) {
-	    skipped += strlenpt(openfile->current->data) / editwincols;
-#ifdef DEBUG
-	    fprintf(stderr, "paging up: i = %d, skipped = %d based on line %ld len %lu\n",
-			i, skipped, (long)openfile->current->lineno, (unsigned long)strlenpt(openfile->current->data));
-#endif
-	}
-#endif
+    /* Move up the required number of lines or chunks.  If we can't, we're
+     * at the top of the file, so put the cursor there and get out. */
+    if (go_back_chunks(mustmove, &openfile->current, &leftedge) > 0) {
+	do_first_line();
+	return;
     }
 
+    openfile->placewewant = leftedge + target_column;
     openfile->current_x = actual_x(openfile->current->data,
 					openfile->placewewant);
 
@@ -93,35 +101,30 @@ void do_page_up(void)
     refresh_needed = TRUE;
 }
 
-/* Move down one page. */
+/* Move down nearly one screenful. */
 void do_page_down(void)
 {
-    int i, mustmove;
-
-    /* If the cursor is less than a page away from the bottom of the file,
-     * put it at the end of the last line. */
-    if (openfile->current->lineno + maxlines - 2 >= openfile->filebot->lineno) {
-	do_last_line();
-	return;
-    }
+    int mustmove = (editwinrows < 3) ? 1 : editwinrows - 2;
+    size_t leftedge, target_column;
 
     /* If we're not in smooth scrolling mode, put the cursor at the
      * beginning of the top line of the edit window, as Pico does. */
     if (!ISSET(SMOOTH_SCROLL)) {
 	openfile->current = openfile->edittop;
-	openfile->placewewant = openfile->current_y = 0;
+	openfile->placewewant = openfile->firstcolumn;
+	openfile->current_y = 0;
     }
 
-    mustmove = (maxlines < 3) ? 1 : maxlines - 2;
-
-    for (i = mustmove; i > 0 && openfile->current != openfile->filebot; i--) {
-	openfile->current = openfile->current->next;
-#ifdef DEBUG
-	fprintf(stderr, "paging down: moving to line %lu\n", (unsigned long)openfile->current->lineno);
-#endif
+    get_edge_and_target(&leftedge, &target_column);
 
+    /* Move down the required number of lines or chunks.  If we can't, we're
+     * at the bottom of the file, so put the cursor there and get out. */
+    if (go_forward_chunks(mustmove, &openfile->current, &leftedge) > 0) {
+	do_last_line();
+	return;
     }
 
+    openfile->placewewant = leftedge + target_column;
     openfile->current_x = actual_x(openfile->current->data,
 					openfile->placewewant);
 
@@ -244,8 +247,6 @@ void do_prev_word(bool allow_punct, bool allow_update)
     filestruct *was_current = openfile->current;
     bool seen_a_word = FALSE, step_forward = FALSE;
 
-    assert(openfile->current != NULL && openfile->current->data != NULL);
-
     /* Move backward until we pass over the start of a word. */
     while (TRUE) {
 	/* If at the head of a line, move to the end of the preceding one. */
@@ -303,8 +304,6 @@ bool do_next_word(bool allow_punct, bool allow_update)
 				openfile->current_x, allow_punct);
     bool seen_space = !started_on_word;
 
-    assert(openfile->current != NULL && openfile->current->data != NULL);
-
     /* Move forward until we reach the start of a word. */
     while (TRUE) {
 	/* If at the end of a line, move to the beginning of the next one. */
@@ -347,193 +346,216 @@ void do_next_word_void(void)
     do_next_word(ISSET(WORD_BOUNDS), TRUE);
 }
 
-/* Make sure that the current line, when it is partially scrolled off the
- * screen in softwrap mode, is scrolled fully into view. */
-void ensure_line_is_visible(void)
-{
-#ifndef NANO_TINY
-    if (ISSET(SOFTWRAP) && strlenpt(openfile->current->data) / editwincols +
-				openfile->current_y >= editwinrows) {
-	adjust_viewport(ISSET(SMOOTH_SCROLL) ? FLOWING : CENTERING);
-	refresh_needed = TRUE;
-    }
-#endif
-}
-
-/* Move to the beginning of the current line.  If the SMART_HOME flag is
- * set, move to the first non-whitespace character of the current line
- * if we aren't already there, or to the beginning of the current line
- * if we are. */
-void do_home(void)
+/* Move to the beginning of the current line (or softwrapped chunk).
+ * If be_clever is TRUE, do a smart home when wanted and possible,
+ * and do a dynamic home when in softwrap mode and it'spossible.
+ * If be_clever is FALSE, just do a simple home. */
+void do_home(bool be_clever)
 {
+    filestruct *was_current = openfile->current;
     size_t was_column = xplustabs();
-
+    bool moved_off_chunk = TRUE;
 #ifndef NANO_TINY
-    if (ISSET(SMART_HOME)) {
-	size_t current_x_save = openfile->current_x;
+    bool moved = FALSE;
+    size_t leftedge_x = 0;
 
-	openfile->current_x = indent_length(openfile->current->data);
+    if (ISSET(SOFTWRAP))
+	leftedge_x = actual_x(openfile->current->data,
+			(was_column / editwincols) * editwincols);
 
-	if (openfile->current_x == current_x_save ||
-		openfile->current->data[openfile->current_x] == '\0')
+    if (ISSET(SMART_HOME) && be_clever) {
+	size_t indent_x = indent_length(openfile->current->data);
+
+	if (openfile->current->data[indent_x] != '\0') {
+	    /* If we're exactly on the indent, move fully home.  Otherwise,
+	     * when not softwrapping or not after the first nonblank chunk,
+	     * move to the first nonblank character. */
+	    if (openfile->current_x == indent_x) {
+		openfile->current_x = 0;
+		moved = TRUE;
+	    } else if (!ISSET(SOFTWRAP) || leftedge_x <= indent_x) {
+		openfile->current_x = indent_x;
+		moved = TRUE;
+	    }
+	}
+    }
+
+    if (!moved && ISSET(SOFTWRAP)) {
+	/* If already at the left edge of the screen, move fully home.
+	 * Otherwise, move to the left edge. */
+	if (openfile->current_x == leftedge_x && be_clever)
 	    openfile->current_x = 0;
-    } else
+	else {
+	    openfile->current_x = leftedge_x;
+	    moved_off_chunk = FALSE;
+	}
+    } else if (!moved)
 #endif
 	openfile->current_x = 0;
 
     openfile->placewewant = xplustabs();
 
-    if (need_horizontal_scroll(was_column, openfile->placewewant))
+    /* If we changed chunk, we might be offscreen.  Otherwise,
+     * update current if the mark is on or we changed "page". */
+    if (ISSET(SOFTWRAP) && moved_off_chunk) {
+	focusing = FALSE;
+	edit_redraw(was_current);
+    } else if (line_needs_update(was_column, openfile->placewewant))
 	update_line(openfile->current, openfile->current_x);
 }
 
-/* Move to the end of the current line. */
-void do_end(void)
+/* Do a (smart or dynamic) home. */
+void do_home_void(void)
 {
-    size_t was_column = xplustabs();
+    do_home(TRUE);
+}
+
+/* Move to the end of the current line (or softwrapped chunk).
+ * If be_clever is TRUE, do a dynamic end when in softwrap mode and
+ * it's possible.  If be_clever is FALSE, just do a simple end. */
+void do_end(bool be_clever)
+{
+    filestruct *was_current = openfile->current;
+    size_t was_column = xplustabs();
+    size_t line_len = strlen(openfile->current->data);
+    bool moved_off_chunk = TRUE;
+
+#ifndef NANO_TINY
+    if (ISSET(SOFTWRAP)) {
+	size_t rightedge_x = actual_x(openfile->current->data,
+			((was_column / editwincols) * editwincols) +
+			(editwincols - 1));
+
+	/* If already at the right edge of the screen, move fully to
+	 * the end of the line.  Otherwise, move to the right edge. */
+	if (openfile->current_x == rightedge_x && be_clever)
+	    openfile->current_x = line_len;
+	else {
+	    openfile->current_x = rightedge_x;
+	    moved_off_chunk = FALSE;
+	}
+    } else
+#endif
+	openfile->current_x = line_len;
 
-    openfile->current_x = strlen(openfile->current->data);
     openfile->placewewant = xplustabs();
 
-    if (need_horizontal_scroll(was_column, openfile->placewewant))
+    /* If we changed chunk, we might be offscreen.  Otherwise,
+     * update current if the mark is on or we changed "page". */
+    if (ISSET(SOFTWRAP) && moved_off_chunk) {
+	focusing = FALSE;
+	edit_redraw(was_current);
+    } else if (line_needs_update(was_column, openfile->placewewant))
 	update_line(openfile->current, openfile->current_x);
-
-    ensure_line_is_visible();
 }
 
-/* If scroll_only is FALSE, move up one line.  If scroll_only is TRUE,
- * scroll up one line without scrolling the cursor. */
+/* Do a (dynamic) end. */
+void do_end_void(void)
+{
+    do_end(TRUE);
+}
+
+/* Move the cursor to the preceding line or chunk.  If scroll_only is TRUE,
+ * also scroll the screen one row, so the cursor stays in the same spot. */
 void do_up(bool scroll_only)
 {
+    filestruct *was_current = openfile->current;
     size_t was_column = xplustabs();
+    size_t leftedge, target_column;
 
-    /* If we're at the top of the file, or if scroll_only is TRUE and
-     * the top of the file is onscreen, get out. */
-    if (openfile->current == openfile->fileage ||
-		(scroll_only && openfile->edittop == openfile->fileage))
+    /* When just scrolling and the top of the file is onscreen, get out. */
+    if (scroll_only && openfile->edittop == openfile->fileage &&
+			openfile->firstcolumn == 0)
 	return;
 
-    assert(ISSET(SOFTWRAP) || openfile->current_y == openfile->current->lineno - openfile->edittop->lineno);
+    get_edge_and_target(&leftedge, &target_column);
 
-    /* Move the current line of the edit window up. */
-    openfile->current = openfile->current->prev;
+    /* If we can't move up one line or chunk, we're at top of file. */
+    if (go_back_chunks(1, &openfile->current, &leftedge) > 0)
+	return;
+
+    openfile->placewewant = leftedge + target_column;
     openfile->current_x = actual_x(openfile->current->data,
 					openfile->placewewant);
 
     /* When the cursor was on the first line of the edit window (or when just
      * scrolling without moving the cursor), scroll the edit window up -- one
      * line if we're in smooth scrolling mode, and half a page otherwise. */
-    if (openfile->current->next == openfile->edittop || scroll_only)
+    if (openfile->current_y == 0 || scroll_only)
 	edit_scroll(UPWARD, (ISSET(SMOOTH_SCROLL) || scroll_only) ?
 				1 : editwinrows / 2 + 1);
 
-    /* If the lines weren't already redrawn, see if they need to be. */
     if (openfile->current_y > 0) {
-	/* Redraw the prior line if it was horizontally scrolled. */
-	if (need_horizontal_scroll(was_column, 0))
+	/* Redraw the prior line if it's not offscreen, and it's not the same
+	 * line as the current one, and the line was horizontally scrolled. */
+	if ((!scroll_only || openfile->current_y < editwinrows - 1) &&
+			openfile->current != was_current &&
+			line_needs_update(was_column, 0))
 	    update_line(openfile->current->next, 0);
 	/* Redraw the current line if it needs to be horizontally scrolled. */
-	if (need_horizontal_scroll(0, xplustabs()))
+	if (line_needs_update(0, xplustabs()))
 	    update_line(openfile->current, openfile->current_x);
     }
 }
 
-/* Move up one line. */
+/* Move up one line or chunk. */
 void do_up_void(void)
 {
     do_up(FALSE);
 }
 
-/* If scroll_only is FALSE, move down one line.  If scroll_only is TRUE,
- * scroll down one line without scrolling the cursor. */
+/* Move the cursor to next line or chunk.  If scroll_only is TRUE, also
+ * scroll the screen one row, so the cursor stays in the same spot. */
 void do_down(bool scroll_only)
 {
-#ifndef NANO_TINY
-    int amount = 0, enough;
-    filestruct *topline;
-#endif
+    filestruct *was_current = openfile->current;
     size_t was_column = xplustabs();
+    size_t leftedge, target_column;
 
-    /* If we're at the bottom of the file, get out. */
-    if (openfile->current == openfile->filebot)
+    get_edge_and_target(&leftedge, &target_column);
+
+    /* If we can't move down one line or chunk, we're at bottom of file. */
+    if (go_forward_chunks(1, &openfile->current, &leftedge) > 0)
 	return;
 
-    assert(ISSET(SOFTWRAP) || openfile->current_y ==
-		openfile->current->lineno - openfile->edittop->lineno);
-    assert(openfile->current->next != NULL);
-
-#ifndef NANO_TINY
-    if (ISSET(SOFTWRAP)) {
-	/* Compute the number of lines to scroll. */
-	amount = strlenpt(openfile->current->data) / editwincols -
-			xplustabs() / editwincols +
-			strlenpt(openfile->current->next->data) / editwincols +
-			openfile->current_y - editwinrows + 2;
-	topline = openfile->edittop;
-	/* Reduce the amount when there are overlong lines at the top. */
-	for (enough = 1; enough < amount; enough++) {
-	    amount -= strlenpt(topline->data) / editwincols;
-	    if (amount > 0)
-		topline = topline->next;
-	    if (amount < enough) {
-		amount = enough;
-		break;
-	    }
-	}
-    }
-#endif
-
-    /* Move to the next line in the file. */
-    openfile->current = openfile->current->next;
+    openfile->placewewant = leftedge + target_column;
     openfile->current_x = actual_x(openfile->current->data,
 					openfile->placewewant);
 
     /* When the cursor was on the last line of the edit window (or when just
      * scrolling without moving the cursor), scroll the edit window down -- one
      * line if we're in smooth scrolling mode, and half a page otherwise. */
-#ifndef NANO_TINY
-    if (openfile->current_y == editwinrows - 1 || amount > 0 || scroll_only) {
-	if (amount < 1 || scroll_only)
-	    amount = 1;
-
+    if (openfile->current_y == editwinrows - 1 || scroll_only)
 	edit_scroll(DOWNWARD, (ISSET(SMOOTH_SCROLL) || scroll_only) ?
-				amount : editwinrows / 2 + 1);
+				1 : editwinrows / 2 + 1);
 
-	if (ISSET(SOFTWRAP)) {
-	    refresh_needed = TRUE;
-	    return;
-	}
-    }
-#else
-    if (openfile->current_y == editwinrows - 1)
-	edit_scroll(DOWNWARD, editwinrows / 2 + 1);
-#endif
-
-    /* If the lines weren't already redrawn, see if they need to be. */
     if (openfile->current_y < editwinrows - 1) {
-	/* Redraw the prior line if it was horizontally scrolled. */
-	if (need_horizontal_scroll(was_column, 0))
+	/* Redraw the prior line if it's not offscreen, and it's not the same
+	 * line as the current one, and the line was horizontally scrolled. */
+	if ((!scroll_only || openfile->current_y > 0) &&
+			openfile->current != was_current &&
+			line_needs_update(was_column, 0))
 	    update_line(openfile->current->prev, 0);
 	/* Redraw the current line if it needs to be horizontally scrolled. */
-	if (need_horizontal_scroll(0, xplustabs()))
+	if (line_needs_update(0, xplustabs()))
 	    update_line(openfile->current, openfile->current_x);
     }
 }
 
-/* Move down one line. */
+/* Move down one line or chunk. */
 void do_down_void(void)
 {
     do_down(FALSE);
 }
 
 #ifndef NANO_TINY
-/* Scroll up one line without scrolling the cursor. */
+/* Scroll up one line or chunk without scrolling the cursor. */
 void do_scroll_up(void)
 {
     do_up(TRUE);
 }
 
-/* Scroll down one line without scrolling the cursor. */
+/* Scroll down one line or chunk without scrolling the cursor. */
 void do_scroll_down(void)
 {
     do_down(TRUE);
@@ -544,18 +566,35 @@ void do_scroll_down(void)
 void do_left(void)
 {
     size_t was_column = xplustabs();
+#ifndef NANO_TINY
+    size_t was_chunk = (was_column / editwincols);
+    filestruct *was_current = openfile->current;
+#endif
 
     if (openfile->current_x > 0)
 	openfile->current_x = move_mbleft(openfile->current->data,
 						openfile->current_x);
     else if (openfile->current != openfile->fileage) {
 	do_up_void();
-	openfile->current_x = strlen(openfile->current->data);
+	do_end(FALSE);
+	return;
     }
 
     openfile->placewewant = xplustabs();
 
-    if (need_horizontal_scroll(was_column, openfile->placewewant))
+#ifndef NANO_TINY
+    /* If we were on the first line of the edit window, and we changed chunk,
+     * we're now above the first line of the edit window, so scroll up. */
+    if (ISSET(SOFTWRAP) && openfile->current_y == 0 &&
+		openfile->current == was_current &&
+		openfile->placewewant / editwincols != was_chunk) {
+	edit_scroll(UPWARD, ISSET(SMOOTH_SCROLL) ? 1 : editwinrows / 2 + 1);
+	return;
+    }
+#endif
+
+    /* Update current if the mark is on or it has changed "page". */
+    if (line_needs_update(was_column, openfile->placewewant))
 	update_line(openfile->current, openfile->current_x);
 }
 
@@ -563,27 +602,34 @@ void do_left(void)
 void do_right(void)
 {
     size_t was_column = xplustabs();
-
-    assert(openfile->current_x <= strlen(openfile->current->data));
+#ifndef NANO_TINY
+    size_t was_chunk = (was_column / editwincols);
+    filestruct *was_current = openfile->current;
+#endif
 
     if (openfile->current->data[openfile->current_x] != '\0')
 	openfile->current_x = move_mbright(openfile->current->data,
 						openfile->current_x);
     else if (openfile->current != openfile->filebot) {
-	openfile->current_x = 0;
-#ifndef NANO_TINY
-	if (ISSET(SOFTWRAP))
-	    openfile->current_y -= strlenpt(openfile->current->data) / editwincols;
-#endif
+	do_home(FALSE);
+	do_down_void();
+	return;
     }
 
     openfile->placewewant = xplustabs();
 
-    if (need_horizontal_scroll(was_column, openfile->placewewant))
-	update_line(openfile->current, openfile->current_x);
+#ifndef NANO_TINY
+    /* If we were on the last line of the edit window, and we changed chunk,
+     * we're now below the first line of the edit window, so scroll down. */
+    if (ISSET(SOFTWRAP) && openfile->current_y == editwinrows - 1 &&
+		openfile->current == was_current &&
+		openfile->placewewant / editwincols != was_chunk) {
+	edit_scroll(DOWNWARD, ISSET(SMOOTH_SCROLL) ? 1 : editwinrows / 2 + 1);
+	return;
+    }
+#endif
 
-    if (openfile->current_x == 0)
-	do_down_void();
-    else
-	ensure_line_is_visible();
+    /* Update current if the mark is on or it has changed "page". */
+    if (line_needs_update(was_column, openfile->placewewant))
+	update_line(openfile->current, openfile->current_x);
 }

src/nano.c

@@ -34,10 +34,10 @@
 #ifdef ENABLE_UTF8
 #include <langinfo.h>
 #endif
+#ifdef HAVE_TERMIOS_H
 #include <termios.h>
-#ifdef HAVE_GETOPT_H
-#include <getopt.h>
 #endif
+#include <getopt.h>
 #ifndef NANO_TINY
 #include <sys/ioctl.h>
 #endif
@@ -50,7 +50,12 @@ static int oldinterval = -1;
 static bool no_rcfiles = FALSE;
 	/* Should we ignore all rcfiles? */
 #endif
+#ifdef HAVE_TERMIOS_H
 static struct termios oldterm;
+#else
+# define tcsetattr(...)
+# define tcgetattr(...)
+#endif
 	/* The user's original terminal settings. */
 static struct sigaction act;
 	/* Used to set up all our fun signal handlers. */
@@ -223,7 +228,7 @@ partition *partition_filestruct(filestruct *top, size_t top_x,
     p->bot_data = mallocstrcpy(NULL, bot->data + bot_x);
 
     /* Remove all text after bot_x at the bottom of the partition. */
-    null_at(&bot->data, bot_x);
+    bot->data[bot_x] = '\0';
 
     /* Remove all text before top_x at the top of the partition. */
     charmove(top->data, top->data + top_x, strlen(top->data) - top_x + 1);
@@ -746,32 +751,20 @@ void mouse_init(void)
 }
 #endif /* !DISABLE_MOUSE */
 
-#ifdef HAVE_GETOPT_LONG
-#define print_opt(shortflag, longflag, desc) print_opt_full(shortflag, longflag, desc)
-#else
-#define print_opt(shortflag, longflag, desc) print_opt_full(shortflag, desc)
-#endif
-
 /* Print one usage string to the screen.  This cuts down on duplicate
  * strings to translate, and leaves out the parts that shouldn't be
  * translatable (i.e. the flag names). */
-void print_opt_full(const char *shortflag
-#ifdef HAVE_GETOPT_LONG
-	, const char *longflag
-#endif
-	, const char *desc)
+void print_opt(const char *shortflag, const char *longflag, const char *desc)
 {
     printf(" %s\t", shortflag);
     if (strlenpt(shortflag) < 8)
 	printf("\t");
 
-#ifdef HAVE_GETOPT_LONG
     printf("%s\t", longflag);
     if (strlenpt(longflag) < 8)
 	printf("\t\t");
     else if (strlenpt(longflag) < 16)
 	printf("\t");
-#endif
 
     if (desc != NULL)
 	printf("%s", _(desc));
@@ -781,18 +774,18 @@ void print_opt_full(const char *shortflag
 /* Explain how to properly use nano and its command-line options. */
 void usage(void)
 {
-    printf(_("Usage: nano [OPTIONS] [[+LINE,COLUMN] FILE]...\n\n"));
-#ifdef HAVE_GETOPT_LONG
+    printf(_("Usage: nano [OPTIONS] [[+LINE[,COLUMN]] FILE]...\n\n"));
+    /* TRANSLATORS: The next two strings are part of the --help output.
+     * It's best to keep its lines within 80 characters. */
+    printf(_("To place the cursor on a specific line of a file, put the line number with\n"
+		"a '+' before the filename.  The column number can be added after a comma.\n"));
+    printf(_("When the first filename is '-', nano reads data from standard input.\n\n"));
     printf(_("Option\t\tGNU long option\t\tMeaning\n"));
-#else
-    printf(_("Option\t\tMeaning\n"));
-#endif
-    print_opt(_("+LINE,COLUMN"), "",
+#ifndef NANO_TINY
+    print_opt("-A", "--smarthome",
 	/* TRANSLATORS: The next forty or so strings are option descriptions
 	 * for the --help output.  Try to keep them at most 40 characters. */
-	N_("Start at line LINE, column COLUMN"));
-#ifndef NANO_TINY
-    print_opt("-A", "--smarthome", N_("Enable smart home key"));
+		N_("Enable smart home key"));
     if (!ISSET(RESTRICTED)) {
 	print_opt("-B", "--backup", N_("Save backups of existing files"));
 	print_opt(_("-C <dir>"), _("--backupdir=<dir>"),
@@ -856,12 +849,16 @@ void usage(void)
 #endif
 #ifndef DISABLE_COLOR
     if (!ISSET(RESTRICTED))
-	print_opt(_("-Y <str>"), _("--syntax=<str>"),
+	print_opt(_("-Y <name>"), _("--syntax=<name>"),
 		N_("Syntax definition to use for coloring"));
 #endif
     print_opt("-c", "--constantshow", N_("Constantly show cursor position"));
     print_opt("-d", "--rebinddelete",
 	N_("Fix Backspace/Delete confusion problem"));
+#ifndef DISABLE_BROWSER
+    if (!ISSET(RESTRICTED))
+	print_opt("-g", "--showcursor", N_("Show cursor in file browser"));
+#endif
     print_opt("-h", "--help", N_("Show this help text and exit"));
 #ifndef NANO_TINY
     print_opt("-i", "--autoindent", N_("Automatically indent new lines"));
@@ -1187,11 +1184,15 @@ void signal_init(void)
     memset(&act, 0, sizeof(struct sigaction));
     act.sa_handler = SIG_IGN;
     sigaction(SIGINT, &act, NULL);
+#ifdef SIGQUIT
     sigaction(SIGQUIT, &act, NULL);
+#endif
 
     /* Trap SIGHUP and SIGTERM because we want to write the file out. */
     act.sa_handler = handle_hupterm;
+#ifdef SIGHUP
     sigaction(SIGHUP, &act, NULL);
+#endif
     sigaction(SIGTERM, &act, NULL);
 
 #ifndef NANO_TINY
@@ -1203,17 +1204,23 @@ void signal_init(void)
     /* Trap normal suspend (^Z) so we can handle it ourselves. */
     if (!ISSET(SUSPEND)) {
 	act.sa_handler = SIG_IGN;
+#ifdef SIGTSTP
 	sigaction(SIGTSTP, &act, NULL);
+#endif
     } else {
 	/* Block all other signals in the suspend and continue handlers.
 	 * If we don't do this, other stuff interrupts them! */
 	sigfillset(&act.sa_mask);
 
 	act.sa_handler = do_suspend;
+#ifdef SIGTSTP
 	sigaction(SIGTSTP, &act, NULL);
+#endif
 
 	act.sa_handler = do_continue;
+#ifdef SIGCONT
 	sigaction(SIGCONT, &act, NULL);
+#endif
     }
 }
 
@@ -1245,11 +1252,15 @@ RETSIGTYPE do_suspend(int signal)
     /* Trap SIGHUP and SIGTERM so we can properly deal with them while
      * suspended. */
     act.sa_handler = handle_hupterm;
+#ifdef SIGHUP
     sigaction(SIGHUP, &act, NULL);
+#endif
     sigaction(SIGTERM, &act, NULL);
 
     /* Do what mutt does: send ourselves a SIGSTOP. */
+#ifdef SIGSTOP
     kill(0, SIGSTOP);
+#endif
 }
 
 /* The version of above function that is bound to a key. */
@@ -1321,6 +1332,9 @@ void regenerate_screen(void)
 #endif
     editwincols = COLS - margin;
 
+    /* Ensure that firstcolumn is the starting column of its chunk. */
+    ensure_firstcolumn_is_aligned();
+
 #ifdef USE_SLANG
     /* Slang curses emulation brain damage, part 1: If we just do what
      * curses does here, it'll only work properly if the resize made the
@@ -1387,12 +1401,16 @@ void do_toggle(int flag)
 	case SUSPEND:
 	    signal_init();
 	    break;
+	case SOFTWRAP:
+	    if (!ISSET(SOFTWRAP))
+		openfile->firstcolumn = 0;
+	    refresh_needed = TRUE;
+	    break;
 	case WHITESPACE_DISPLAY:
 	    titlebar(NULL);	/* Fall through. */
 #ifndef DISABLE_COLOR
 	case NO_COLOR_SYNTAX:
 #endif
-	case SOFTWRAP:
 	    refresh_needed = TRUE;
 	    break;
     }
@@ -1417,23 +1435,27 @@ void do_toggle_void(void)
  * settings. */
 void disable_extended_io(void)
 {
+#ifdef HAVE_TERMIOS_H
     struct termios term;
 
     tcgetattr(0, &term);
     term.c_lflag &= ~IEXTEN;
     term.c_oflag &= ~OPOST;
     tcsetattr(0, TCSANOW, &term);
+#endif
 }
 
 /* Disable interpretation of the special control keys in our terminal
  * settings. */
 void disable_signals(void)
 {
+#ifdef HAVE_TERMIOS_H
     struct termios term;
 
     tcgetattr(0, &term);
     term.c_lflag &= ~ISIG;
     tcsetattr(0, TCSANOW, &term);
+#endif
 }
 
 #ifndef NANO_TINY
@@ -1441,11 +1463,13 @@ void disable_signals(void)
  * settings. */
 void enable_signals(void)
 {
+#ifdef HAVE_TERMIOS_H
     struct termios term;
 
     tcgetattr(0, &term);
     term.c_lflag |= ISIG;
     tcsetattr(0, TCSANOW, &term);
+#endif
 }
 #endif
 
@@ -1453,22 +1477,26 @@ void enable_signals(void)
  * settings. */
 void disable_flow_control(void)
 {
+#ifdef HAVE_TERMIOS_H
     struct termios term;
 
     tcgetattr(0, &term);
     term.c_iflag &= ~IXON;
     tcsetattr(0, TCSANOW, &term);
+#endif
 }
 
 /* Enable interpretation of the flow control characters in our terminal
  * settings. */
 void enable_flow_control(void)
 {
+#ifdef HAVE_TERMIOS_H
     struct termios term;
 
     tcgetattr(0, &term);
     term.c_iflag |= IXON;
     tcsetattr(0, TCSANOW, &term);
+#endif
 }
 
 /* Set up the terminal state.  Put the terminal in raw mode (read one
@@ -1737,54 +1765,29 @@ int do_mouse(void)
 	bool sameline = (mouse_row == openfile->current_y);
 	    /* Whether the click was on the row where the cursor is. */
 	filestruct *current_save = openfile->current;
+	ssize_t row_count = mouse_row - openfile->current_y;
+	size_t leftedge;
 #ifndef NANO_TINY
 	size_t current_x_save = openfile->current_x;
+
+	if (ISSET(SOFTWRAP))
+	    leftedge = (xplustabs() / editwincols) * editwincols;
+	else
 #endif
+	    leftedge = get_page_start(xplustabs());
 
 #ifdef DEBUG
 	fprintf(stderr, "mouse_row = %d, current_y = %ld\n", mouse_row, (long)openfile->current_y);
 #endif
 
-#ifndef NANO_TINY
-	if (ISSET(SOFTWRAP)) {
-	    ssize_t current_row = 0;
+	/* Move current up or down to the row corresponding to mouse_row. */
+	if (row_count < 0)
+	    go_back_chunks(-row_count, &openfile->current, &leftedge);
+	else
+	    go_forward_chunks(row_count, &openfile->current, &leftedge);
 
-	    openfile->current = openfile->edittop;
-
-	    while (openfile->current->next != NULL && current_row < mouse_row) {
-		current_row += strlenpt(openfile->current->data) / editwincols + 1;
-		openfile->current = openfile->current->next;
-	    }
-
-	    if (current_row > mouse_row) {
-		openfile->current = openfile->current->prev;
-		current_row -= strlenpt(openfile->current->data) / editwincols + 1;
-		openfile->current_x = actual_x(openfile->current->data,
-				((mouse_row - current_row) * editwincols) + mouse_col);
-	    } else
-		openfile->current_x = actual_x(openfile->current->data, mouse_col);
-
-	    openfile->current_y = current_row;
-	    ensure_line_is_visible();
-	    refresh_needed = TRUE;
-	} else
-#endif /* NANO_TINY */
-	{
-	    ssize_t current_row = openfile->current_y;
-
-	    /* Move to where the click occurred. */
-	    while (current_row < mouse_row && openfile->current->next != NULL) {
-		openfile->current = openfile->current->next;
-		current_row++;
-	    }
-	    while (current_row > mouse_row && openfile->current->prev != NULL) {
-		openfile->current = openfile->current->prev;
-		current_row--;
-	    }
-
-	    openfile->current_x = actual_x(openfile->current->data,
-					get_page_start(xplustabs()) + mouse_col);
-	}
+	openfile->current_x = actual_x(openfile->current->data,
+					leftedge + mouse_col);
 
 #ifndef NANO_TINY
 	/* Clicking where the cursor is toggles the mark, as does clicking
@@ -1796,8 +1799,7 @@ int do_mouse(void)
 	    /* The cursor moved; clean the cutbuffer on the next cut. */
 	    cutbuffer_reset();
 
-	if (!ISSET(SOFTWRAP))
-	    edit_redraw(current_save);
+	edit_redraw(current_save);
     }
 
     /* No more handling is needed. */
@@ -1810,18 +1812,18 @@ int do_mouse(void)
  * TRUE. */
 void do_output(char *output, size_t output_len, bool allow_cntrls)
 {
-    size_t current_len, i = 0;
-#ifndef NANO_TINY
-    size_t orig_rows = 0;
-#endif
     char *char_buf = charalloc(mb_cur_max());
     int char_len;
-
-    current_len = strlen(openfile->current->data);
-
+    size_t current_len = strlen(openfile->current->data);
+    size_t i = 0;
 #ifndef NANO_TINY
-    if (ISSET(SOFTWRAP))
+    size_t orig_rows = 0, original_row = 0;
+
+    if (ISSET(SOFTWRAP)) {
+	if (openfile->current_y == editwinrows - 1)
+	    original_row = xplustabs() / editwincols;
 	orig_rows = strlenpt(openfile->current->data) / editwincols;
+    }
 #endif
 
     while (i < output_len) {
@@ -1845,8 +1847,6 @@ void do_output(char *output, size_t output_len, bool allow_cntrls)
 		refresh_needed = TRUE;
 	}
 
-	assert(openfile->current_x <= current_len);
-
 	/* Make room for the new character and copy it into the line. */
 	openfile->current->data = charealloc(openfile->current->data,
 					current_len + char_len + 1);
@@ -1882,13 +1882,15 @@ void do_output(char *output, size_t output_len, bool allow_cntrls)
     }
 
 #ifndef NANO_TINY
-    ensure_line_is_visible();
-
-    /* If the number of screen rows that a softwrapped line occupies
-     * has changed, we need a full refresh. */
-    if (ISSET(SOFTWRAP) && refresh_needed == FALSE)
-	if ((strlenpt(openfile->current->data) / editwincols) != orig_rows)
-	    refresh_needed = TRUE;
+    /* If the number of screen rows that a softwrapped line occupies has
+     * changed, we need a full refresh.  And if we were on the last line
+     * of the edit window, and we moved one screen row, we're now below
+     * the last line of the edit window, so we need a full refresh too. */
+    if (ISSET(SOFTWRAP) && refresh_needed == FALSE &&
+		(strlenpt(openfile->current->data) / editwincols != orig_rows ||
+		(openfile->current_y == editwinrows - 1 &&
+		xplustabs() / editwincols != original_row)))
+	refresh_needed = TRUE;
 #endif
 
     free(char_buf);
@@ -1921,7 +1923,6 @@ int main(int argc, char **argv)
 	/* The old value of the multibuffer option, restored after we
 	 * load all files on the command line. */
 #endif
-#ifdef HAVE_GETOPT_LONG
     const struct option long_options[] = {
 	{"boldtext", 0, NULL, 'D'},
 #ifndef DISABLE_MULTIBUFFER
@@ -1994,7 +1995,6 @@ int main(int argc, char **argv)
 #endif
 	{NULL, 0, NULL, 0}
     };
-#endif
 
     /* Back up the terminal settings so that they can be restored. */
     tcgetattr(0, &oldterm);
@@ -2034,15 +2034,9 @@ int main(int argc, char **argv)
 	SET(RESTRICTED);
 
     while ((optchr =
-#ifdef HAVE_GETOPT_LONG
 	getopt_long(argc, argv,
 		"ABC:DEFGHIKLNOPQ:RST:UVWX:Y:abcdefghijklmno:pqr:s:tuvwxz$",
-		long_options, NULL)
-#else
-	getopt(argc, argv,
-		"ABC:DEFGHIKLNOPQ:RST:UVWX:Y:abcdefghijklmno:pqr:s:tuvwxz$")
-#endif
-		) != -1) {
+		long_options, NULL)) != -1) {
 	switch (optchr) {
 	    case 'a':
 	    case 'b':
@@ -2417,14 +2411,7 @@ int main(int argc, char **argv)
 
     /* If quotestr wasn't specified, set its default value. */
     if (quotestr == NULL)
-	quotestr = mallocstrcpy(NULL,
-#ifdef HAVE_REGEX_H
-		"^([ \t]*[#:>|}])+"
-#else
-		"> "
-#endif
-		);
-#ifdef HAVE_REGEX_H
+	quotestr = mallocstrcpy(NULL, "^([ \t]*[#:>|}])+");
     quoterc = regcomp(&quotereg, quotestr, NANO_REG_EXTENDED);
 
     if (quoterc == 0) {
@@ -2437,9 +2424,6 @@ int main(int argc, char **argv)
 	quoteerr = charalloc(size);
 	regerror(quoterc, &quotereg, quoteerr, size);
     }
-#else
-    quotelen = strlen(quotestr);
-#endif /* !HAVE_REGEX_H */
 #endif /* !DISABLE_JUSTIFY */
 
 #ifndef DISABLE_SPELLER
@@ -2545,7 +2529,7 @@ int main(int argc, char **argv)
     shiftaltdown = get_keycode("kDN4", SHIFT_ALT_DOWN);
 #endif
 
-#ifndef USE_SLANG
+#ifdef HAVE_SET_ESCDELAY
     /* Tell ncurses to pass the Esc key quickly. */
     set_escdelay(50);
 #endif
@@ -2657,6 +2641,10 @@ int main(int argc, char **argv)
 	if (needed_margin != margin) {
 	    margin = needed_margin;
 	    editwincols = COLS - margin;
+
+	    /* Ensure that firstcolumn is the starting column of its chunk. */
+	    ensure_firstcolumn_is_aligned();
+
 	    /* The margin has changed -- schedule a full refresh. */
 	    refresh_needed = TRUE;
 	}
@@ -2671,7 +2659,7 @@ int main(int argc, char **argv)
 	/* Update the displayed current cursor position only when there
 	 * are no keys waiting in the input buffer. */
 	if (ISSET(CONST_UPDATE) && get_key_buffer_len() == 0)
-	    do_cursorpos(TRUE);
+	    do_cursorpos(FALSE);
 
 	/* Refresh just the cursor position or the entire edit window. */
 	if (!refresh_needed) {

src/nano.h

@@ -49,9 +49,7 @@
 #include <sys/param.h>
 #endif
 
-#ifdef HAVE_STDARG_H
 #include <stdarg.h>
-#endif
 
 /* Suppress warnings for __attribute__((warn_unused_result)). */
 #define IGNORE_CALL_RESULT(call) do { if (call) {} } while(0)
@@ -116,46 +114,10 @@
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <dirent.h>
-#ifdef HAVE_REGEX_H
 #include <regex.h>
-#endif
 #include <signal.h>
 #include <assert.h>
 
-/* If no vsnprintf(), use the version from glib 2.x. */
-#ifndef HAVE_VSNPRINTF
-#include <glib.h>
-#define vsnprintf g_vsnprintf
-#endif
-
-/* If no isblank(), iswblank(), strcasecmp(), strncasecmp(),
- * strcasestr(), strnlen(), getdelim(), or getline(), use the versions
- * we have. */
-#ifndef HAVE_ISBLANK
-#define isblank nisblank
-#endif
-#ifndef HAVE_ISWBLANK
-#define iswblank niswblank
-#endif
-#ifndef HAVE_STRCASECMP
-#define strcasecmp nstrcasecmp
-#endif
-#ifndef HAVE_STRNCASECMP
-#define strncasecmp nstrncasecmp
-#endif
-#ifndef HAVE_STRCASESTR
-#define strcasestr nstrcasestr
-#endif
-#ifndef HAVE_STRNLEN
-#define strnlen nstrnlen
-#endif
-#ifndef HAVE_GETDELIM
-#define getdelim ngetdelim
-#endif
-#ifndef HAVE_GETLINE
-#define getline ngetline
-#endif
-
 /* If we aren't using ncurses with mouse support, turn the mouse support
  * off, as it's useless then. */
 #ifndef NCURSES_MOUSE_VERSION
@@ -391,6 +353,9 @@ typedef struct openfilestruct {
 	/* The current line for this file. */
     size_t totsize;
 	/* The file's total number of characters. */
+    size_t firstcolumn;
+	/* The starting column of the top line of the edit window.
+	 * When not in softwrap mode, it's always zero. */
     size_t current_x;
 	/* The file's x-coordinate position. */
     size_t placewewant;
@@ -547,7 +512,8 @@ enum
     MAKE_IT_UNIX,
     JUSTIFY_TRIM,
     SHOW_CURSOR,
-    LINE_NUMBERS
+    LINE_NUMBERS,
+    NO_PAUSES
 };
 
 /* Flags for the menus in which a given function should be present. */

src/prompt.c

@@ -125,9 +125,9 @@ int do_statusbar_input(bool *ran_func, bool *finished)
 	else if (s->scfunc == do_next_word_void)
 	    do_statusbar_next_word();
 #endif
-	else if (s->scfunc == do_home)
+	else if (s->scfunc == do_home_void)
 	    do_statusbar_home();
-	else if (s->scfunc == do_end)
+	else if (s->scfunc == do_end_void)
 	    do_statusbar_end();
 	/* When in restricted mode at the "Write File" prompt and the
 	 * filename isn't blank, disallow any input and deletion. */
@@ -296,7 +296,7 @@ void do_statusbar_cut_text(void)
     if (!ISSET(CUT_TO_END))
 	statusbar_x = 0;
 
-    null_at(&answer, statusbar_x);
+    answer[statusbar_x] = '\0';
 
     update_the_statusbar();
 }
@@ -637,7 +637,7 @@ int do_prompt(bool allow_tabs, bool allow_files,
     vsnprintf(prompt, COLS * mb_cur_max(), msg, ap);
     va_end(ap);
     /* Reserve five columns for colon plus angles plus answer, ":<aa>". */
-    null_at(&prompt, actual_x(prompt, (COLS < 5) ? 0 : COLS - 5));
+    prompt[actual_x(prompt, (COLS < 5) ? 0 : COLS - 5)] = '\0';
 
     func = acquire_an_answer(&retval, allow_tabs, allow_files, &listed,
 #ifndef DISABLE_HISTORIES

src/proto.h

@@ -76,7 +76,6 @@ extern WINDOW *topwin;
 extern WINDOW *edit;
 extern WINDOW *bottomwin;
 extern int editwinrows;
-extern int maxlines;
 
 extern filestruct *cutbuffer;
 extern filestruct *cutbottom;
@@ -100,13 +99,9 @@ extern const char *unjust_tag;
 extern char *punct;
 extern char *brackets;
 extern char *quotestr;
-#ifdef HAVE_REGEX_H
 extern regex_t quotereg;
 extern int quoterc;
 extern char *quoteerr;
-#else
-extern size_t quotelen;
-#endif
 #endif /* !DISABLE_JUSTIFY */
 
 extern char *word_chars;
@@ -154,10 +149,8 @@ extern filestruct *replacebot;
 extern poshiststruct *position_history;
 #endif
 
-#ifdef HAVE_REGEX_H
 extern regex_t search_regexp;
 extern regmatch_t regmatches[10];
-#endif
 
 extern int hilite_attribute;
 #ifndef DISABLE_COLOR
@@ -184,7 +177,7 @@ void do_filesearch(void);
 void do_fileresearch(void);
 void do_first_file(void);
 void do_last_file(void);
-char *striponedir(const char *path);
+char *strip_last_component(const char *path);
 #endif
 
 /* Most functions in chars.c. */
@@ -193,12 +186,6 @@ void utf8_init(void);
 bool using_utf8(void);
 #endif
 char *addstrings(char* str1, size_t len1, char* str2, size_t len2);
-#ifndef HAVE_ISBLANK
-bool nisblank(int c);
-#endif
-#if !defined(HAVE_ISWBLANK) && defined(ENABLE_UTF8)
-bool niswblank(wchar_t wc);
-#endif
 bool is_byte(int c);
 bool is_alpha_mbchar(const char *c);
 bool is_alnum_mbchar(const char *c);
@@ -217,17 +204,8 @@ char *make_mbchar(long chr, int *chr_mb_len);
 int parse_mbchar(const char *buf, char *chr, size_t *col);
 size_t move_mbleft(const char *buf, size_t pos);
 size_t move_mbright(const char *buf, size_t pos);
-#ifndef HAVE_STRCASECMP
-int nstrcasecmp(const char *s1, const char *s2);
-#endif
 int mbstrcasecmp(const char *s1, const char *s2);
-#ifndef HAVE_STRNCASECMP
-int nstrncasecmp(const char *s1, const char *s2, size_t n);
-#endif
 int mbstrncasecmp(const char *s1, const char *s2, size_t n);
-#ifndef HAVE_STRCASESTR
-char *nstrcasestr(const char *haystack, const char *needle);
-#endif
 char *mbstrcasestr(const char *haystack, const char *needle);
 char *revstrstr(const char *haystack, const char *needle,
 	const char *pointer);
@@ -236,9 +214,6 @@ char *revstrcasestr(const char *haystack, const char *needle, const char
 char *mbrevstrcasestr(const char *haystack, const char *needle, const
 	char *rev_start);
 size_t mbstrlen(const char *s);
-#ifndef HAVE_STRNLEN
-size_t nstrnlen(const char *s, size_t maxlen);
-#endif
 size_t mbstrnlen(const char *s, size_t maxlen);
 #if !defined(NANO_TINY) || !defined(DISABLE_JUSTIFY)
 char *mbstrchr(const char *s, const char *c);
@@ -294,6 +269,10 @@ void initialize_buffer_text(void);
 bool open_buffer(const char *filename, bool undoable);
 #ifndef DISABLE_SPELLER
 void replace_buffer(const char *filename);
+#ifndef NANO_TINY
+void replace_marked_buffer(const char *filename, filestruct *top, size_t top_x,
+	filestruct *bot, size_t bot_x);
+#endif
 #endif
 void display_buffer(void);
 #ifndef DISABLE_MULTIBUFFER
@@ -301,7 +280,7 @@ void switch_to_prev_buffer_void(void);
 void switch_to_next_buffer_void(void);
 bool close_buffer(void);
 #endif
-filestruct *read_line(char *buf, size_t buf_len, filestruct *prevnode);
+char *encode_data(char *buf, size_t buf_len);
 void read_file(FILE *f, int fd, const char *filename, bool undoable,
 		bool checkwritable);
 int open_file(const char *filename, bool newfie, bool quiet, FILE **f);
@@ -404,9 +383,10 @@ void do_prev_word(bool allow_punct, bool allow_update);
 void do_prev_word_void(void);
 bool do_next_word(bool allow_punct, bool allow_update);
 void do_next_word_void(void);
-void ensure_line_is_visible(void);
-void do_home(void);
-void do_end(void);
+void do_home(bool be_clever);
+void do_home_void(void);
+void do_end(bool be_clever);
+void do_end_void(void);
 void do_up(bool scroll_only);
 void do_up_void(void);
 void do_down(bool scroll_only);
@@ -451,11 +431,7 @@ void disable_mouse_support(void);
 void enable_mouse_support(void);
 void mouse_init(void);
 #endif
-void print_opt_full(const char *shortflag
-#ifdef HAVE_GETOPT_LONG
-	, const char *longflag
-#endif
-	, const char *desc);
+void print_opt(const char *shortflag, const char *longflag, const char *desc);
 void usage(void);
 void version(void);
 void do_exit(void);
@@ -527,10 +503,8 @@ void do_rcfiles(void);
 #endif /* !DISABLE_NANORC */
 
 /* All functions in search.c. */
-#ifdef HAVE_REGEX_H
 bool regexp_init(const char *regexp);
 void regexp_cleanup(void);
-#endif
 void not_found_msg(const char *str);
 void search_replace_abort(void);
 int search_init(bool replacing, bool use_answer);
@@ -543,9 +517,7 @@ void do_findnext(void);
 #endif
 void do_research(void);
 void go_looking(void);
-#ifdef HAVE_REGEX_H
 int replace_regexp(char *string, bool create);
-#endif
 char *replace_line(const char *needle);
 ssize_t do_replace_loop(const char *needle, bool whole_word_only,
 	const filestruct *real_current, size_t *real_current_x);
@@ -613,11 +585,7 @@ void wrap_reset(void);
 bool do_wrap(filestruct *line);
 #endif
 #if !defined(DISABLE_HELP) || !defined(DISABLE_WRAPJUSTIFY)
-ssize_t break_line(const char *line, ssize_t goal
-#ifndef DISABLE_HELP
-	, bool newln
-#endif
-	);
+ssize_t break_line(const char *line, ssize_t goal, bool snap_at_nl);
 #endif
 #if !defined(NANO_TINY) || !defined(DISABLE_JUSTIFY)
 size_t indent_length(const char *line);
@@ -664,17 +632,7 @@ void snuggly_fit(char **str);
 void null_at(char **data, size_t index);
 void unsunder(char *str, size_t true_len);
 void sunder(char *str);
-#if !defined(NANO_TINY) && !defined(DISABLE_NANORC)
-#ifndef HAVE_GETLINE
-ssize_t ngetline(char **lineptr, size_t *n, FILE *stream);
-#endif
-#ifndef HAVE_GETDELIM
-ssize_t ngetdelim(char **lineptr, size_t *n, int delim, FILE *stream);
-#endif
-#endif
-#ifdef HAVE_REGEX_H
 const char *fixbounds(const char *r);
-#endif
 #ifndef DISABLE_SPELLER
 bool is_separate_word(size_t position, size_t length, const char *buf);
 #endif
@@ -748,15 +706,25 @@ void reset_cursor(void);
 void edit_draw(filestruct *fileptr, const char *converted,
 	int line, size_t from_col);
 int update_line(filestruct *fileptr, size_t index);
-bool need_horizontal_scroll(const size_t old_column, const size_t new_column);
+#ifndef NANO_TINY
+int update_softwrapped_line(filestruct *fileptr);
+#endif
+bool line_needs_update(const size_t old_column, const size_t new_column);
+int go_back_chunks(int nrows, filestruct **line, size_t *leftedge);
+int go_forward_chunks(int nrows, filestruct **line, size_t *leftedge);
+bool less_than_a_screenful(size_t was_lineno, size_t was_leftedge);
 void edit_scroll(scroll_dir direction, int nrows);
+void ensure_firstcolumn_is_aligned(void);
+bool current_is_above_screen(void);
+bool current_is_below_screen(void);
+bool current_is_offscreen(void);
 void edit_redraw(filestruct *old_current);
 void edit_refresh(void);
 void adjust_viewport(update_type location);
 void total_redraw(void);
 void total_refresh(void);
 void display_main_list(void);
-void do_cursorpos(bool constant);
+void do_cursorpos(bool force);
 void do_cursorpos_void(void);
 void spotlight(bool active, const char *word);
 void xon_complaint(void);

src/rcfile.c

@@ -62,6 +62,7 @@ static const rcoption rcopts[] = {
 #endif
     {"nohelp", NO_HELP},
     {"nonewlines", NO_NEWLINES},
+    {"nopauses", NO_PAUSES},
 #ifndef DISABLE_WRAPPING
     {"nowrap", NO_WRAP},
 #endif
@@ -79,9 +80,7 @@ static const rcoption rcopts[] = {
 #endif
     {"rebinddelete", REBIND_DELETE},
     {"rebindkeypad", REBIND_KEYPAD},
-#ifdef HAVE_REGEX_H
     {"regexp", USE_REGEXP},
-#endif
 #ifndef DISABLE_SPELLER
     {"speller", 0},
 #endif
@@ -169,7 +168,7 @@ void rcfile_error(const char *msg, ...)
  * returned pointer will point to '\0' if we hit the end of the line. */
 char *parse_next_word(char *ptr)
 {
-    while (!isblank(*ptr) && *ptr != '\0')
+    while (!isblank((unsigned char)*ptr) && *ptr != '\0')
 	ptr++;
 
     if (*ptr == '\0')
@@ -178,7 +177,7 @@ char *parse_next_word(char *ptr)
     /* Null-terminate and advance ptr. */
     *ptr++ = '\0';
 
-    while (isblank(*ptr))
+    while (isblank((unsigned char)*ptr))
 	ptr++;
 
     return ptr;
@@ -217,7 +216,7 @@ char *parse_argument(char *ptr)
 	ptr = last_quote + 1;
     }
     if (ptr != NULL)
-	while (isblank(*ptr))
+	while (isblank((unsigned char)*ptr))
 	    ptr++;
     return ptr;
 }
@@ -232,7 +231,7 @@ char *parse_next_regex(char *ptr)
     /* Continue until the end of line, or until a " followed by a
      * blank character or the end of line. */
     while (*ptr != '\0' && (*ptr != '"' ||
-		(*(ptr + 1) != '\0' && !isblank(*(ptr + 1)))))
+		(*(ptr + 1) != '\0' && !isblank((unsigned char)ptr[1]))))
 	ptr++;
 
     assert(*ptr == '"' || *ptr == '\0');
@@ -246,7 +245,7 @@ char *parse_next_regex(char *ptr)
     /* Null-terminate and advance ptr. */
     *ptr++ = '\0';
 
-    while (isblank(*ptr))
+    while (isblank((unsigned char)*ptr))
 	ptr++;
 
     return ptr;
@@ -351,7 +350,7 @@ void parse_syntax(char *ptr)
 bool is_universal(void (*func))
 {
     if (func == do_left || func == do_right ||
-	func == do_home || func == do_end ||
+	func == do_home_void || func == do_end_void ||
 	func == do_prev_word_void || func == do_next_word_void ||
 	func == do_verbatim_input || func == do_cut_text_void ||
 	func == do_delete || func == do_backspace ||
@@ -389,11 +388,11 @@ void parse_binding(char *ptr, bool dobind)
     }
 
     /* Uppercase only the first two or three characters of the key name. */
-    keycopy[0] = toupper(keycopy[0]);
-    keycopy[1] = toupper(keycopy[1]);
+    keycopy[0] = toupper((unsigned char)keycopy[0]);
+    keycopy[1] = toupper((unsigned char)keycopy[1]);
     if (keycopy[0] == 'M' && keycopy[1] == '-') {
 	if (strlen(keycopy) > 2)
-	    keycopy[2] = toupper(keycopy[2]);
+	    keycopy[2] = toupper((unsigned char)keycopy[2]);
 	else {
 	    rcfile_error(N_("Key name is too short"));
 	    goto free_copy;
@@ -403,7 +402,7 @@ void parse_binding(char *ptr, bool dobind)
     /* Allow the codes for Insert and Delete to be rebound, but apart
      * from those two only Control, Meta and Function sequences. */
     if (!strcasecmp(keycopy, "Ins") || !strcasecmp(keycopy, "Del"))
-	keycopy[1] = tolower(keycopy[1]);
+	keycopy[1] = tolower((unsigned char)keycopy[1]);
     else if (keycopy[0] != '^' && keycopy[0] != 'M' && keycopy[0] != 'F') {
 	rcfile_error(N_("Key name must begin with \"^\", \"M\", or \"F\""));
 	goto free_copy;
@@ -968,7 +967,7 @@ void parse_rcfile(FILE *rcstream, bool syntax_only)
 
 	lineno++;
 	ptr = buf;
-	while (isblank(*ptr))
+	while (isblank((unsigned char)*ptr))
 	    ptr++;
 
 	/* If we have a blank line or a comment, skip to the next
@@ -1294,7 +1293,7 @@ void do_rcfiles(void)
 
     free(nanorc);
 
-    if (errors && !ISSET(QUIET)) {
+    if (errors && !ISSET(QUIET) && !ISSET(NO_PAUSES)) {
 	errors = FALSE;
 	fprintf(stderr, _("\nPress Enter to continue starting nano.\n"));
 	while (getchar() != '\n')

src/search.c

@@ -35,7 +35,6 @@ static bool came_full_circle = FALSE;
 static bool history_changed = FALSE;
 	/* Have any of the history lists changed? */
 #endif
-#ifdef HAVE_REGEX_H
 static bool regexp_compiled = FALSE;
 	/* Have we compiled any regular expressions? */
 
@@ -72,7 +71,6 @@ void regexp_cleanup(void)
 	regfree(&search_regexp);
     }
 }
-#endif
 
 /* Indicate on the statusbar that the string at str was not found by the
  * last search. */
@@ -102,9 +100,7 @@ void search_replace_abort(void)
     if (openfile->mark_set)
 	refresh_needed = TRUE;
 #endif
-#ifdef HAVE_REGEX_H
     regexp_cleanup();
-#endif
 }
 
 /* Set up the system variables for a search or replace.  If use_answer
@@ -156,10 +152,7 @@ int search_init(bool replacing, bool use_answer)
 		edit_refresh, "%s%s%s%s%s%s", _("Search"),
 		/* TRANSLATORS: The next three modify the search prompt. */
 		ISSET(CASE_SENSITIVE) ? _(" [Case Sensitive]") : "",
-#ifdef HAVE_REGEX_H
-		ISSET(USE_REGEXP) ? _(" [Regexp]") :
-#endif
-		"",
+		ISSET(USE_REGEXP) ? _(" [Regexp]") : "",
 		ISSET(BACKWARDS_SEARCH) ? _(" [Backwards]") : "", replacing ?
 #ifndef NANO_TINY
 		/* TRANSLATORS: The next two modify the search prompt. */
@@ -189,11 +182,9 @@ int search_init(bool replacing, bool use_answer)
 	    update_history(&search_history, answer);
 #endif
 	}
-#ifdef HAVE_REGEX_H
 	if (ISSET(USE_REGEXP) && !regexp_init(last_search))
 	    return -1;
 	else
-#endif
 	    return 0;	/* We have a valid string or regex. */
     }
 
@@ -207,15 +198,11 @@ int search_init(bool replacing, bool use_answer)
 	TOGGLE(BACKWARDS_SEARCH);
 	backupstring = mallocstrcpy(backupstring, answer);
 	return 1;
-    } else
-#ifdef HAVE_REGEX_H
-    if (func == regexp_void) {
+    } else if (func == regexp_void) {
 	TOGGLE(USE_REGEXP);
 	backupstring = mallocstrcpy(backupstring, answer);
 	return 1;
-    } else
-#endif
-    if (func == do_replace || func == flip_replace_void) {
+    } else if (func == do_replace || func == flip_replace_void) {
 	backupstring = mallocstrcpy(backupstring, answer);
 	return -2;	/* Call the opposite search function. */
     } else if (func == do_gotolinecolumn_void) {
@@ -297,11 +284,9 @@ int findnextstr(const char *needle, bool whole_word_only, bool have_region,
 	}
 
 	if (found != NULL) {
-#ifdef HAVE_REGEX_H
 	    /* When doing a regex search, compute the length of the match. */
 	    if (ISSET(USE_REGEXP))
 		found_len = regmatches[0].rm_eo - regmatches[0].rm_so;
-#endif
 #ifndef DISABLE_SPELLER
 	    /* When we're spell checking, a match should be a separate word;
 	     * if it's not, continue looking in the rest of the line. */
@@ -438,10 +423,8 @@ void do_research(void)
 	return;
     }
 
-#ifdef HAVE_REGEX_H
     if (ISSET(USE_REGEXP) && !regexp_init(last_search))
 	return;
-#endif
 
     /* Use the search-menu key bindings, to allow cancelling. */
     currmenu = MWHEREIS;
@@ -479,7 +462,6 @@ void go_looking(void)
     search_replace_abort();
 }
 
-#ifdef HAVE_REGEX_H
 /* Calculate the size of the replacement text, taking possible
  * subexpressions \1 to \9 into account.  Return the replacement
  * text in the passed string only when create is TRUE. */
@@ -522,7 +504,6 @@ int replace_regexp(char *string, bool create)
 
     return replacement_size;
 }
-#endif /* HAVE_REGEX_H */
 
 /* Return a copy of the current line with one needle replaced. */
 char *replace_line(const char *needle)
@@ -532,17 +513,13 @@ char *replace_line(const char *needle)
     size_t new_line_size = strlen(openfile->current->data) + 1;
 
     /* First adjust the size of the new line for the change. */
-#ifdef HAVE_REGEX_H
     if (ISSET(USE_REGEXP)) {
 	match_len = regmatches[0].rm_eo - regmatches[0].rm_so;
 	new_line_size += replace_regexp(NULL, FALSE) - match_len;
     } else {
-#endif
 	match_len = strlen(needle);
 	new_line_size += strlen(answer) - match_len;
-#ifdef HAVE_REGEX_H
     }
-#endif
 
     /* Create the buffer. */
     copy = charalloc(new_line_size);
@@ -551,11 +528,9 @@ char *replace_line(const char *needle)
     strncpy(copy, openfile->current->data, openfile->current_x);
 
     /* Add the replacement text. */
-#ifdef HAVE_REGEX_H
     if (ISSET(USE_REGEXP))
 	replace_regexp(copy + openfile->current_x, TRUE);
     else
-#endif
 	strcpy(copy + openfile->current_x, answer);
 
     assert(openfile->current_x + match_len <= strlen(openfile->current->data));
@@ -706,11 +681,10 @@ ssize_t do_replace_loop(const char *needle, bool whole_word_only,
 #endif
 	    }
 
-#ifdef HAVE_REGEX_H
 	    /* Don't find the same zero-length or BOL match again. */
 	    if (match_len == 0 || (*needle == '^' && ISSET(USE_REGEXP)))
 		skipone = TRUE;
-#endif
+
 	    /* When moving forward, put the cursor just after the replacement
 	     * text, so that searching will continue there. */
 	    if (!ISSET(BACKWARDS_SEARCH))
@@ -762,7 +736,7 @@ ssize_t do_replace_loop(const char *needle, bool whole_word_only,
 void do_replace(void)
 {
     filestruct *edittop_save, *begin;
-    size_t begin_x;
+    size_t firstcolumn_save, begin_x;
     ssize_t numreplaced;
     int i;
 
@@ -806,6 +780,7 @@ void do_replace(void)
 
     /* Save where we are. */
     edittop_save = openfile->edittop;
+    firstcolumn_save = openfile->firstcolumn;
     begin = openfile->current;
     begin_x = openfile->current_x;
 
@@ -813,6 +788,7 @@ void do_replace(void)
 
     /* Restore where we were. */
     openfile->edittop = edittop_save;
+    openfile->firstcolumn = firstcolumn_save;
     openfile->current = begin;
     openfile->current_x = begin_x;
     refresh_needed = TRUE;
@@ -909,17 +885,29 @@ void do_gotolinecolumn(ssize_t line, ssize_t column, bool use_answer,
     openfile->placewewant = column - 1;
 
     /* When the position was manually given, center the target line. */
-    if (interactive || ISSET(SOFTWRAP)) {
+    if (interactive) {
 	adjust_viewport(CENTERING);
 	refresh_needed = TRUE;
     } else {
+	int rows_from_tail;
+
+#ifndef NANO_TINY
+	if (ISSET(SOFTWRAP)) {
+	    filestruct *line = openfile->current;
+	    size_t leftedge = (xplustabs() / editwincols) * editwincols;
+
+	    rows_from_tail = (editwinrows / 2) -
+			go_forward_chunks(editwinrows / 2, &line, &leftedge);
+	} else
+#endif
+	    rows_from_tail = openfile->filebot->lineno -
+				openfile->current->lineno;
+
 	/* If the target line is close to the tail of the file, put the last
-	 * line of the file on the bottom line of the screen; otherwise, just
+	 * line or chunk on the bottom line of the screen; otherwise, just
 	 * center the target line. */
-	if (openfile->filebot->lineno - openfile->current->lineno <
-							editwinrows / 2) {
-	    openfile->current_y = editwinrows - openfile->filebot->lineno +
-					openfile->current->lineno - 1;
+	if (rows_from_tail < editwinrows / 2) {
+	    openfile->current_y = editwinrows - 1 - rows_from_tail;
 	    adjust_viewport(STATIONARY);
 	} else
 	    adjust_viewport(CENTERING);
@@ -1072,7 +1060,7 @@ void do_find_bracket(void)
     bracket_set = charalloc((mb_cur_max() * 2) + 1);
     strncpy(bracket_set, ch, ch_len);
     strncpy(bracket_set + ch_len, wanted_ch, wanted_ch_len);
-    null_at(&bracket_set, ch_len + wanted_ch_len);
+    bracket_set[ch_len + wanted_ch_len] = '\0';
 
     found_ch = charalloc(mb_cur_max() + 1);
 

src/text.c

@@ -179,13 +179,11 @@ void do_deletion(undo_type action)
 	return;
 
 #ifndef NANO_TINY
-    ensure_line_is_visible();
-
     /* If the number of screen rows that a softwrapped line occupies
      * has changed, we need a full refresh. */
-    if (ISSET(SOFTWRAP) && refresh_needed == FALSE)
-	if ((strlenpt(openfile->current->data) / editwincols) != orig_rows)
-	    refresh_needed = TRUE;
+    if (ISSET(SOFTWRAP) && refresh_needed == FALSE &&
+		strlenpt(openfile->current->data) / editwincols != orig_rows)
+	refresh_needed = TRUE;
 #endif
 
     set_modified();
@@ -791,10 +789,7 @@ void do_undo(void)
 	filestruct *oldcutbuffer = cutbuffer, *oldcutbottom = cutbottom;
 	cutbuffer = NULL;
 	cutbottom = NULL;
-	/* Instead of a line number, u->mark_begin_lineno contains the number
-	 * of lines of the inserted segment, because the file was partitioned
-	 * when update_undo() was called; so, calculate the end-line number. */
-	openfile->mark_begin = fsfromline(u->lineno + u->mark_begin_lineno - 1);
+	openfile->mark_begin = fsfromline(u->mark_begin_lineno);
 	openfile->mark_begin_x = u->mark_begin_x;
 	openfile->mark_set = TRUE;
 	goto_line_posx(u->lineno, u->begin);
@@ -855,7 +850,7 @@ void do_redo(void)
 	return;
     }
 
-    f = fsfromline(u->type == INSERT ? 1 : u->mark_begin_lineno);
+    f = fsfromline(u->mark_begin_lineno);
     if (!f)
 	return;
 
@@ -1229,7 +1224,7 @@ void add_undo(undo_type action)
 	    char *char_buf = charalloc(mb_cur_max() + 1);
 	    int char_len = parse_mbchar(&openfile->current->data[u->begin],
 						char_buf, NULL);
-	    null_at(&char_buf, char_len);
+	    char_buf[char_len] = '\0';
 	    u->strdata = char_buf;
 	    if (u->type == BACK)
 		u->mark_begin_x += char_len;
@@ -1434,14 +1429,8 @@ fprintf(stderr, "  >> Updating... action = %d, openfile->last_action = %d, openf
 	u->lineno = openfile->current->lineno;
 	break;
     case INSERT:
-	/* Store the number of lines (plus one) of the insertion. */
 	u->mark_begin_lineno = openfile->current->lineno;
-	/* When the insertion contains no newline, store the adjusted
-	 * x position; otherwise, store the length of the last line. */
-	if (openfile->fileage == openfile->filebot)
-	    u->mark_begin_x = openfile->current_x;
-	else
-	    u->mark_begin_x = strlen(openfile->filebot->data);
+	u->mark_begin_x = openfile->current_x;
 	break;
     case ENTER:
 	u->strdata = mallocstrcpy(NULL, openfile->current->data);
@@ -1509,11 +1498,7 @@ bool do_wrap(filestruct *line)
     line_len = strlen(line->data);
 
     /* Find the last blank where we can break the line. */
-    wrap_loc = break_line(line->data, fill
-#ifndef DISABLE_HELP
-	, FALSE
-#endif
-	);
+    wrap_loc = break_line(line->data, fill, FALSE);
 
     /* If we couldn't break the line, or we've reached the end of it, we
      * don't wrap. */
@@ -1622,98 +1607,72 @@ bool do_wrap(filestruct *line)
  * that the display length to there is at most (goal + 1).  If there is
  * no such blank, then we find the first blank.  We then take the last
  * blank in that group of blanks.  The terminating '\0' counts as a
- * blank, as does a '\n' if newln is TRUE. */
-ssize_t break_line(const char *line, ssize_t goal
-#ifndef DISABLE_HELP
-	, bool newln
-#endif
-	)
+ * blank, as does a '\n' if snap_at_nl is TRUE. */
+ssize_t break_line(const char *line, ssize_t goal, bool snap_at_nl)
 {
-    ssize_t blank_loc = -1;
-	/* Current tentative return value.  Index of the last blank we
-	 * found with short enough display width. */
-    ssize_t cur_loc = 0;
-	/* Current index in line. */
-    size_t cur_pos = 0;
-	/* Current column position in line. */
+    ssize_t lastblank = -1;
+	/* The index of the last blank we found. */
+    ssize_t index = 0;
+	/* The index of the character we are looking at. */
+    size_t column = 0;
+	/* The column position that corresponds with index. */
     int char_len = 0;
-	/* Length of current character, in bytes. */
+	/* The length of the current character, in bytes. */
 
-    assert(line != NULL);
+    /* Find the last blank that does not overshoot the target column. */
+    while (*line != '\0' && column <= goal) {
+	if (is_blank_mbchar(line) || (snap_at_nl && *line == '\n')) {
+	    lastblank = index;
 
-    while (*line != '\0' && goal >= cur_pos) {
-	char_len = parse_mbchar(line, NULL, &cur_pos);
-
-	if (is_blank_mbchar(line)
-#ifndef DISABLE_HELP
-		|| (newln && *line == '\n')
-#endif
-		) {
-	    blank_loc = cur_loc;
-
-#ifndef DISABLE_HELP
-	    if (newln && *line == '\n')
+	    if (*line == '\n')
 		break;
-#endif
 	}
 
+	char_len = parse_mbchar(line, NULL, &column);
 	line += char_len;
-	cur_loc += char_len;
+	index += char_len;
     }
 
-    if (goal >= cur_pos)
-	/* In fact, the whole line displays shorter than goal. */
-	return cur_loc;
+    /* If the whole line displays shorter than goal, we're done. */
+    if (column <= goal)
+	return index;
 
 #ifndef DISABLE_HELP
-    if (newln && blank_loc <= 0) {
-	/* If no blank was found, or was found only as the first
-	 * character, force a line break. */
-	cur_loc -= char_len;
-	return cur_loc;
-    }
+    /* If we're wrapping a help text and no blank was found, or was
+     * found only as the first character, force a line break. */
+    if (snap_at_nl && lastblank < 1)
+	return (index - char_len);
 #endif
 
-    if (blank_loc == -1) {
-	/* No blank was found within the goal width,
-	 * so now try and find a blank beyond it. */
-	bool found_blank = FALSE;
-	ssize_t found_blank_loc = 0;
-
+    /* If no blank was found within the goal width, seek one after it. */
+    if (lastblank < 0) {
 	while (*line != '\0') {
+	    if (is_blank_mbchar(line))
+		lastblank = index;
+	    else if (lastblank > 0)
+		return lastblank;
+
 	    char_len = parse_mbchar(line, NULL, NULL);
-
-	    if (is_blank_mbchar(line)
-#ifndef DISABLE_HELP
-		|| (newln && *line == '\n')
-#endif
-		) {
-		found_blank = TRUE;
-		found_blank_loc = cur_loc;
-	    } else if (found_blank)
-		return found_blank_loc;
-
 	    line += char_len;
-	    cur_loc += char_len;
+	    index += char_len;
 	}
 
 	return -1;
     }
 
-    /* Move to the last blank after blank_loc, if there is one. */
-    line -= cur_loc;
-    line += blank_loc;
+    /* Move the pointer back to the last blank, and then step beyond it. */
+    line = line - index + lastblank;
     char_len = parse_mbchar(line, NULL, NULL);
     line += char_len;
 
+    /* Skip any consecutive blanks after the last blank. */
     while (*line != '\0' && is_blank_mbchar(line)) {
+	lastblank += char_len;
 	char_len = parse_mbchar(line, NULL, NULL);
-
 	line += char_len;
-	blank_loc += char_len;
     }
 
-    return blank_loc;
+    return lastblank;
 }
 #endif /* !DISABLE_HELP || !DISABLE_WRAPJUSTIFY */
 
@@ -1903,13 +1862,9 @@ void justify_format(filestruct *paragraph, size_t skip)
 
 /* The "quote part" of a line is the largest initial substring matching
  * the quote string.  This function returns the length of the quote part
- * of the given line.
- *
- * Note that if !HAVE_REGEX_H then we match concatenated copies of
- * quotestr. */
+ * of the given line. */
 size_t quote_length(const char *line)
 {
-#ifdef HAVE_REGEX_H
     regmatch_t matches;
     int rc = regexec(&quotereg, line, 1, &matches, 0);
 
@@ -1918,14 +1873,6 @@ size_t quote_length(const char *line)
     /* matches.rm_so should be 0, since the quote string should start
      * with the caret ^. */
     return matches.rm_eo;
-#else	/* !HAVE_REGEX_H */
-    size_t qdepth = 0;
-
-    /* Compute quote depth level. */
-    while (strncmp(line + qdepth, quotestr, quotelen) == 0)
-	qdepth += quotelen;
-    return qdepth;
-#endif	/* !HAVE_REGEX_H */
 }
 
 /* a_line and b_line are lines of text.  The quotation part of a_line is
@@ -2127,12 +2074,10 @@ bool find_paragraph(size_t *const quote, size_t *const par)
     filestruct *current_save;
 	/* The line at the beginning of the paragraph we search for. */
 
-#ifdef HAVE_REGEX_H
     if (quoterc != 0) {
 	statusline(ALERT, _("Bad quote string %s: %s"), quotestr, quoteerr);
 	return FALSE;
     }
-#endif
 
     assert(openfile->current != NULL);
 
@@ -2215,9 +2160,9 @@ void do_justify(bool full_justify)
     /* We save these variables to be restored if the user
      * unjustifies. */
     filestruct *edittop_save = openfile->edittop;
+    size_t firstcolumn_save = openfile->firstcolumn;
     filestruct *current_save = openfile->current;
     size_t current_x_save = openfile->current_x;
-    size_t totsize_save = openfile->totsize;
 #ifndef NANO_TINY
     filestruct *mark_begin_save = openfile->mark_begin;
     size_t mark_begin_x_save = openfile->mark_begin_x;
@@ -2396,11 +2341,7 @@ void do_justify(bool full_justify)
 	    /* If this line is too long, try to wrap it to the next line
 	     * to make it short enough. */
 	    break_pos = break_line(openfile->current->data + indent_len,
-		fill - strnlenpt(openfile->current->data, indent_len)
-#ifndef DISABLE_HELP
-		, FALSE
-#endif
-		);
+		fill - strnlenpt(openfile->current->data, indent_len), FALSE);
 
 	    /* We can't break the line, or don't need to, so get out. */
 	    if (break_pos == -1 || break_pos + indent_len == line_len)
@@ -2510,7 +2451,7 @@ void do_justify(bool full_justify)
     /* If needed, unset the cursor-position suppression flag, so the cursor
      * position /will/ be displayed upon a return to the main loop. */
     if (ISSET(CONST_UPDATE))
-	do_cursorpos(TRUE);
+	do_cursorpos(FALSE);
 
     func = func_from_key(&kbinput);
 
@@ -2522,29 +2463,20 @@ void do_justify(bool full_justify)
 	/* If we actually justified something, then splice the preserved
 	 * unjustified text back into the file, */
 	if (first_par_line != NULL) {
-	    /* Partition the filestruct so that it contains only the
-	     * text of the justified paragraph. */
-	    filepart = partition_filestruct(first_par_line, 0,
-				last_par_line, filebot_inpar ?
-				strlen(last_par_line->data) : 0);
+	    filestruct *trash = NULL, *dummy = NULL;
 
 	    /* Throw away the justified paragraph, and replace it with
 	     * the preserved unjustified text. */
-	    free_filestruct(openfile->fileage);
-	    openfile->fileage = jusbuffer;
-	    openfile->filebot = jusbottom;
+	    extract_buffer(&trash, &dummy, first_par_line, 0, last_par_line,
+			filebot_inpar ? strlen(last_par_line->data) : 0);
+	    free_filestruct(trash);
+	    ingraft_buffer(jusbuffer);
 
-	    /* Unpartition the filestruct, to contain the entire text again. */
-	    unpartition_filestruct(&filepart);
-
-	    /* Renumber, from the beginning of the unjustified part. */
-	    renumber(jusbuffer);
-
-	    /* Restore the old position, the size, and the mark. */
+	    /* Restore the old position and the mark. */
 	    openfile->edittop = edittop_save;
+	    openfile->firstcolumn = firstcolumn_save;
 	    openfile->current = current_save;
 	    openfile->current_x = current_x_save;
-	    openfile->totsize = totsize_save;
 #ifndef NANO_TINY
 	    if (openfile->mark_set) {
 		openfile->mark_begin = mark_begin_save;
@@ -2602,6 +2534,7 @@ void do_full_justify(void)
 bool do_int_spell_fix(const char *word)
 {
     char *save_search, *exp_word;
+    size_t firstcolumn_save = openfile->firstcolumn;
     size_t current_x_save = openfile->current_x;
     filestruct *edittop_save = openfile->edittop;
     filestruct *current_save = openfile->current;
@@ -2723,6 +2656,7 @@ bool do_int_spell_fix(const char *word)
 
     /* Restore the viewport to where it was. */
     openfile->edittop = edittop_save;
+    openfile->firstcolumn = firstcolumn_save;
 
     /* Restore the settings of the global flags. */
     memcpy(flags, stash, sizeof(flags));
@@ -2916,27 +2850,13 @@ const char *do_alt_speller(char *tempfile_name)
     size_t current_x_save = openfile->current_x;
     size_t pww_save = openfile->placewewant;
     ssize_t lineno_save = openfile->current->lineno;
+    bool was_at_eol = (openfile->current->data[openfile->current_x] == '\0');
     struct stat spellfileinfo;
     time_t timestamp;
     pid_t pid_spell;
     char *ptr;
     static int arglen = 3;
     static char **spellargs = NULL;
-#ifndef NANO_TINY
-    bool old_mark_set = openfile->mark_set;
-    bool added_magicline = FALSE;
-	/* Whether we added a magicline after filebot. */
-    filestruct *top, *bot;
-    size_t top_x, bot_x, was_x, new_x;
-    bool right_side_up = FALSE;
-    ssize_t mb_lineno_save = 0;
-	/* We're going to close the current file, and open the output of
-	 * the alternate spell command.  The line that mark_begin points
-	 * to will be freed, so we save the line number and restore it
-	 * afterwards. */
-    size_t size_of_surrounding = 0;
-	/* The size of the text outside of a marked region. */
-#endif
 
     /* Get the timestamp and the size of the temporary file. */
     stat(tempfile_name, &spellfileinfo);
@@ -2946,18 +2866,10 @@ const char *do_alt_speller(char *tempfile_name)
     if (spellfileinfo.st_size == 0)
 	return NULL;
 
-#ifndef NANO_TINY
-    if (old_mark_set) {
-	/* If the mark is on, save the number of the line it starts on,
-	 * and then turn the mark off. */
-	mb_lineno_save = openfile->mark_begin->lineno;
-	openfile->mark_set = FALSE;
-    }
-#endif
-
+    /* Exit from curses mode. */
     endwin();
 
-    /* Set up an argument list to pass to execvp(). */
+    /* Set up the argument list to pass to execvp(). */
     if (spellargs == NULL) {
 	spellargs = (char **)nmalloc(arglen * sizeof(char *));
 
@@ -2972,17 +2884,13 @@ const char *do_alt_speller(char *tempfile_name)
     }
     spellargs[arglen - 2] = tempfile_name;
 
-    /* Start a new process for the alternate speller. */
+    /* Fork a child process and run the alternate spell program in it. */
     if ((pid_spell = fork()) == 0) {
-	/* Start alternate spell program; we are using $PATH. */
 	execvp(spellargs[0], spellargs);
 
-	/* Should not be reached, if alternate speller is found!!! */
+	/* Terminate the child process if no alternate speller is found. */
 	exit(1);
-    }
-
-    /* If we couldn't fork, get out. */
-    if (pid_spell < 0)
+    } else if (pid_spell < 0)
 	return _("Could not fork");
 
 #ifndef NANO_TINY
@@ -2999,78 +2907,42 @@ const char *do_alt_speller(char *tempfile_name)
     /* Restore the terminal to its previous state. */
     terminal_init();
 
-    if (!WIFEXITED(alt_spell_status) || WEXITSTATUS(alt_spell_status) != 0) {
-#ifndef NANO_TINY
-	/* Turn the mark back on if it was on before. */
-	openfile->mark_set = old_mark_set;
-#endif
+    if (!WIFEXITED(alt_spell_status) || WEXITSTATUS(alt_spell_status) != 0)
 	return invocation_error(alt_speller);
-    }
 
 #ifndef NANO_TINY
-    if (old_mark_set) {
-	/* Trim the filestruct so that it contains only the marked text. */
+    /* Replace the marked text (or the entire text) of the current buffer
+     * with the spell-checked text. */
+    if (openfile->mark_set) {
+	filestruct *top, *bot;
+	size_t top_x, bot_x;
+	bool right_side_up;
+	ssize_t was_mark_lineno = openfile->mark_begin->lineno;
+
+	openfile->mark_set = FALSE;
+
 	mark_order((const filestruct **)&top, &top_x,
 			(const filestruct **)&bot, &bot_x, &right_side_up);
-	filepart = partition_filestruct(top, top_x, bot, bot_x);
 
-	/* Foresay whether a magicline will be added when the
-	 * spell-checked text is read back in. */
-	if (!ISSET(NO_NEWLINES))
-	    added_magicline = (openfile->filebot->data[0] != '\0');
-
-	/* Compute the size of the text outside of the marked region. */
-	size_of_surrounding = openfile->totsize - get_totsize(top, bot);
-    }
-#endif
-
-    /* Replace the text of the current buffer with the spell-checked text. */
-    replace_buffer(tempfile_name);
-
-#ifndef NANO_TINY
-    if (old_mark_set) {
-	filestruct *top_save = openfile->fileage;
-
-	/* If a magicline was added, remove it again. */
-	if (added_magicline)
-	    remove_magicline();
+	replace_marked_buffer(tempfile_name, top, top_x, bot, bot_x);
 
 	/* Adjust the end point of the marked region for any change in
 	 * length of the region's last line. */
 	if (right_side_up)
-	    was_x = current_x_save;
+	    current_x_save = openfile->current_x;
 	else
-	    was_x = openfile->mark_begin_x;
-	if (top == bot)
-	    new_x = was_x - bot_x + top_x + strlen(openfile->filebot->data);
-	else
-	    new_x = strlen(openfile->filebot->data);
-	if (right_side_up)
-	    current_x_save = new_x;
-	else
-	    openfile->mark_begin_x = new_x;
+	    openfile->mark_begin_x = openfile->current_x;
 
-	/* Unpartition the filestruct so that it contains all the text
-	 * again.  Note that we've replaced the marked text originally
-	 * in the partition with the spell-checked marked text in the
-	 * temp file. */
-	unpartition_filestruct(&filepart);
-
-	/* Renumber, starting with the beginning line of the old partition. */
-	renumber(top_save);
-
-	/* Add back the size of the text surrounding the marked region. */
-	openfile->totsize += size_of_surrounding;
-
-	/* Restore the position of the mark, and turn it back on. */
-	openfile->mark_begin = fsfromline(mb_lineno_save);
+	/* Restore the mark's position and turn it back on. */
+	openfile->mark_begin = fsfromline(was_mark_lineno);
 	openfile->mark_set = TRUE;
-    }
-#endif /* !NANO_TINY */
+    } else
+#endif
+	replace_buffer(tempfile_name);
 
     /* Go back to the old position. */
     goto_line_posx(lineno_save, current_x_save);
-    if (openfile->current_x > strlen(openfile->current->data))
+    if (was_at_eol || openfile->current_x > strlen(openfile->current->data))
 	openfile->current_x = strlen(openfile->current->data);
     openfile->placewewant = pww_save;
     adjust_viewport(STATIONARY);
@@ -3086,6 +2958,7 @@ const char *do_alt_speller(char *tempfile_name)
 	discard_until(NULL, openfile);
 #endif
     }
+
 #ifndef NANO_TINY
     /* Unblock SIGWINCHes again. */
     allow_sigwinch(TRUE);
@@ -3472,6 +3345,7 @@ void do_formatter(void)
     ssize_t lineno_save = openfile->current->lineno;
     size_t current_x_save = openfile->current_x;
     size_t pww_save = openfile->placewewant;
+    bool was_at_eol = (openfile->current->data[openfile->current_x] == '\0');
     pid_t pid_format;
     static int arglen = 3;
     static char **formatargs = NULL;
@@ -3549,7 +3423,7 @@ void do_formatter(void)
 
 	/* Restore the cursor position. */
 	goto_line_posx(lineno_save, current_x_save);
-	if (openfile->current_x > strlen(openfile->current->data))
+	if (was_at_eol || openfile->current_x > strlen(openfile->current->data))
 	    openfile->current_x = strlen(openfile->current->data);
 	openfile->placewewant = pww_save;
 	adjust_viewport(STATIONARY);
@@ -3664,11 +3538,9 @@ void do_verbatim_input(void)
     /* Read in all the verbatim characters. */
     kbinput = get_verbatim_kbinput(edit, &kbinput_len);
 
-    /* If constant cursor position display is on, make sure the current
-     * cursor position will be properly displayed on the statusbar.
-     * Otherwise, blank the statusbar. */
+    /* Unsuppress cursor-position display or blank the statusbar. */
     if (ISSET(CONST_UPDATE))
-	do_cursorpos(TRUE);
+	do_cursorpos(FALSE);
     else {
 	blank_statusbar();
 	wnoutrefresh(bottomwin);

src/utils.c

@@ -25,7 +25,9 @@
 #include <string.h>
 #include <stdio.h>
 #include <unistd.h>
+#ifdef HAVE_PWD_H
 #include <pwd.h>
+#endif
 #include <ctype.h>
 #include <errno.h>
 
@@ -36,6 +38,7 @@ void get_homedir(void)
     if (homedir == NULL) {
 	const char *homenv = getenv("HOME");
 
+#ifdef HAVE_PWD_H
 	/* When HOME isn't set, or when we're root, get the home directory
 	 * from the password file instead. */
 	if (homenv == NULL || geteuid() == 0) {
@@ -44,6 +47,7 @@ void get_homedir(void)
 	    if (userage != NULL)
 		homenv = userage->pw_dir;
 	}
+#endif
 
 	/* Only set homedir if some home directory could be determined,
 	 * otherwise keep homedir NULL. */
@@ -170,94 +174,6 @@ void sunder(char *str)
     }
 }
 
-/* These functions, ngetline() (originally getline()) and ngetdelim()
- * (originally getdelim()), were adapted from GNU mailutils 0.5
- * (mailbox/getline.c).  Here is the notice from that file, after
- * converting to the GPL via LGPL clause 3, and with the Free Software
- * Foundation's address and the copyright years updated:
- *
- * GNU Mailutils -- a suite of utilities for electronic mail
- * Copyright (C) 1999, 2000, 2001, 2002, 2004, 2005, 2006, 2007
- * Free Software Foundation, Inc.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 3 of the
- * License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301, USA. */
-
-#ifndef DISABLE_NANORC
-
-#ifndef HAVE_GETDELIM
-/* This function is equivalent to getdelim(). */
-ssize_t ngetdelim(char **lineptr, size_t *n, int delim, FILE *stream)
-{
-    size_t indx = 0;
-    int c;
-
-    /* Sanity checks. */
-    if (lineptr == NULL || n == NULL || stream == NULL ||
-	fileno(stream) == -1) {
-	errno = EINVAL;
-	return -1;
-    }
-
-    /* Allocate the line the first time. */
-    if (*lineptr == NULL) {
-	*n = MAX_BUF_SIZE;
-	*lineptr = charalloc(*n);
-    }
-
-    while ((c = getc(stream)) != EOF) {
-	/* Check if more memory is needed. */
-	if (indx >= *n) {
-	    *n += MAX_BUF_SIZE;
-	    *lineptr = charealloc(*lineptr, *n);
-	}
-
-	/* Put the result in the line. */
-	(*lineptr)[indx++] = (char)c;
-
-	/* Bail out. */
-	if (c == delim)
-	    break;
-    }
-
-    /* Make room for the null character. */
-    if (indx >= *n) {
-	*n += MAX_BUF_SIZE;
-	*lineptr = charealloc(*lineptr, *n);
-    }
-
-    /* Null-terminate the buffer. */
-    null_at(lineptr, indx++);
-    *n = indx;
-
-    /* The last line may not have the delimiter.  We have to return what
-     * we got, and the error will be seen on the next iteration. */
-    return (c == EOF && (indx - 1) == 0) ? -1 : indx - 1;
-}
-#endif
-
-#ifndef HAVE_GETLINE
-/* This function is equivalent to getline(). */
-ssize_t ngetline(char **lineptr, size_t *n, FILE *stream)
-{
-    return getdelim(lineptr, n, '\n', stream);
-}
-#endif
-#endif /* !DISABLE_NANORC */
-
-#ifdef HAVE_REGEX_H
 /* Fix the regex if we're on platforms which require an adjustment
  * from GNU-style to BSD-style word boundaries. */
 const char *fixbounds(const char *r)
@@ -293,7 +209,6 @@ const char *fixbounds(const char *r)
 
     return r;
 }
-#endif /* HAVE_REGEX_H */
 
 #ifndef DISABLE_SPELLER
 /* Is the word starting at the given position in buf and of the given length
@@ -323,7 +238,6 @@ bool is_separate_word(size_t position, size_t length, const char *buf)
 const char *strstrwrapper(const char *haystack, const char *needle,
 	const char *start)
 {
-#ifdef HAVE_REGEX_H
     if (ISSET(USE_REGEXP)) {
 	if (ISSET(BACKWARDS_SEARCH)) {
 	    size_t last_find, ceiling, far_end;
@@ -376,7 +290,6 @@ const char *strstrwrapper(const char *haystack, const char *needle,
 	else
 	    return haystack + regmatches[0].rm_so;
     }
-#endif /* HAVE_REGEX_H */
     if (ISSET(CASE_SENSITIVE)) {
 	if (ISSET(BACKWARDS_SEARCH))
 	    return revstrstr(haystack, needle, start);
@@ -454,13 +367,14 @@ char *free_and_assign(char *dest, char *src)
     return src;
 }
 
-/* nano scrolls horizontally within a line in chunks.  Return the column
- * number of the first character displayed in the edit window when the
+/* When not in softwrap mode, nano scrolls horizontally within a line in
+ * chunks (a bit smaller than the chunks used in softwrapping).  Return the
+ * column number of the first character displayed in the edit window when the
  * cursor is at the given column.  Note that (0 <= column -
  * get_page_start(column) < COLS). */
 size_t get_page_start(size_t column)
 {
-    if (column == 0 || column < editwincols - 1)
+    if (column < editwincols - 1 || ISSET(SOFTWRAP) || column == 0)
 	return 0;
     else if (editwincols > 8)
 	return column - 7 - (column - 7) % (editwincols - 8);
@@ -520,11 +434,15 @@ size_t strnlenpt(const char *text, size_t maxlen)
     return width;
 }
 
-/* A strlen() with tabs and multicolumn characters factored in:
- * how many columns wide is text? */
+/* Return the number of columns that the given text occupies. */
 size_t strlenpt(const char *text)
 {
-    return strnlenpt(text, (size_t)-1);
+    size_t span = 0;
+
+    while (*text != '\0')
+	text += parse_mbchar(text, NULL, &span);
+
+    return span;
 }
 
 /* Append a new magicline to filebot. */

src/winio.c

@@ -1486,40 +1486,39 @@ int *parse_verbatim_kbinput(WINDOW *win, size_t *count)
     }
 #endif
 
+    *count = 1;
+
 #ifdef ENABLE_UTF8
     if (using_utf8()) {
 	/* Check whether the first code is a valid starter digit: 0 or 1. */
-	long uni = get_unicode_kbinput(win, *kbinput);
+	long unicode = get_unicode_kbinput(win, *kbinput);
 
 	/* If the first code isn't the digit 0 nor 1, put it back. */
-	if (uni != ERR)
+	if (unicode != ERR)
 	    unget_input(kbinput, 1);
 	/* Otherwise, continue reading in digits until we have a complete
 	 * Unicode value, and put back the corresponding byte(s). */
 	else {
-	    char *uni_mb;
-	    int uni_mb_len, *seq, i;
+	    char *multibyte;
+	    int onebyte, i;
 
-	    while (uni == ERR) {
+	    while (unicode == ERR) {
 		free(kbinput);
 		while ((kbinput = get_input(win, 1)) == NULL)
 		    ;
-		uni = get_unicode_kbinput(win, *kbinput);
+		unicode = get_unicode_kbinput(win, *kbinput);
 	    }
 
 	    /* Convert the Unicode value to a multibyte sequence. */
-	    uni_mb = make_mbchar(uni, &uni_mb_len);
-
-	    seq = (int *)nmalloc(uni_mb_len * sizeof(int));
-
-	    for (i = 0; i < uni_mb_len; i++)
-		seq[i] = (unsigned char)uni_mb[i];
+	    multibyte = make_mbchar(unicode, (int *)count);
 
 	    /* Insert the multibyte sequence into the input buffer. */
-	    unget_input(seq, uni_mb_len);
+	    for (i = *count; i > 0 ; i--) {
+		onebyte = (unsigned char)multibyte[i - 1];
+		unget_input(&onebyte, 1);
+	    }
 
-	    free(seq);
-	    free(uni_mb);
+	    free(multibyte);
 	}
     } else
 #endif /* ENABLE_UTF8 */
@@ -1528,8 +1527,6 @@ int *parse_verbatim_kbinput(WINDOW *win, size_t *count)
 
     free(kbinput);
 
-    *count = 1;
-
     /* If this is an iTerm/Eterm/rxvt double escape, take both Escapes. */
     if (key_buffer_len > 3 && *key_buffer == ESC_CODE &&
 		key_buffer[1] == ESC_CODE && key_buffer[2] == '[')
@@ -1810,28 +1807,23 @@ char *display_string(const char *buf, size_t start_col, size_t span,
 	/* The string we return. */
     size_t index;
 	/* Current position in converted. */
-
-    /* If this is data, make room for the "$" at the end of the line. */
-    if (isdata && !ISSET(SOFTWRAP) && strlenpt(buf) > start_col + span)
-	span--;
-
-    if (span == 0)
-	return mallocstrcpy(NULL, "");
+    size_t beyond = start_col + span;
+	/* The column number just beyond the last shown character. */
 
     start_index = actual_x(buf, start_col);
     column = strnlenpt(buf, start_index);
 
     assert(column <= start_col);
 
-    /* Allocate enough space to hold the entire converted buffer. */
-    converted = charalloc(strlen(buf) * (mb_cur_max() + tabsize) + 1);
-
     index = 0;
 #ifdef USING_OLD_NCURSES
     seen_wide = FALSE;
 #endif
     buf += start_index;
 
+    /* Allocate enough space for converting the relevant part of the line. */
+    converted = charalloc(strlen(buf) * (mb_cur_max() + tabsize) + 1);
+
     /* If the first character starts before the left edge, or would be
      * overwritten by a "$" token, then show spaces instead. */
     if (*buf != '\0' && *buf != '\t' && (column < start_col ||
@@ -1858,7 +1850,7 @@ char *display_string(const char *buf, size_t start_col, size_t span,
 #endif
     }
 
-    while (*buf != '\0') {
+    while (*buf != '\0' && start_col < beyond) {
 	int charlength, charwidth = 1;
 
 	if (*buf == ' ') {
@@ -1933,12 +1925,12 @@ char *display_string(const char *buf, size_t start_col, size_t span,
 	   buf += charlength + 7;
     }
 
-    /* Null-terminate converted. */
-    converted[index] = '\0';
+    /* If there is more text than can be shown, make room for the $. */
+    if (*buf != '\0' && isdata && !ISSET(SOFTWRAP))
+	index = move_mbleft(converted, index);
 
-    /* Make sure converted takes up no more than span columns. */
-    index = actual_x(converted, span);
-    null_at(&converted, index);
+    /* Null-terminate the converted string. */
+    converted[index] = '\0';
 
     return converted;
 }
@@ -2119,12 +2111,12 @@ void statusline(message_type importance, const char *msg, ...)
 
     /* Shortly pause after each of the first three alert messages,
      * to give the user time to read them. */
-    if (lastmessage == ALERT && alerts < 4)
+    if (lastmessage == ALERT && alerts < 4 && !ISSET(NO_PAUSES))
 	napms(1200);
 
     if (importance == ALERT) {
-	if (++alerts > 3)
-	    msg = "Some warnings were suppressed";
+	if (++alerts > 3 && !ISSET(NO_PAUSES))
+	    msg = _("Further warnings were suppressed");
 	beep();
     }
 
@@ -2266,33 +2258,38 @@ void onekey(const char *keystroke, const char *desc, int length)
 }
 
 /* Redetermine current_y from the position of current relative to edittop,
- * and put the cursor in the edit window at (current_y, current_x). */
+ * and put the cursor in the edit window at (current_y, "current_x"). */
 void reset_cursor(void)
 {
-    size_t xpt = xplustabs();
+    ssize_t row = 0;
+    size_t col, xpt = xplustabs();
 
 #ifndef NANO_TINY
     if (ISSET(SOFTWRAP)) {
 	filestruct *line = openfile->edittop;
-	openfile->current_y = 0;
 
+	row -= (openfile->firstcolumn / editwincols);
+
+	/* Calculate how many rows the lines from edittop to current use. */
 	while (line != NULL && line != openfile->current) {
-	    openfile->current_y += strlenpt(line->data) / editwincols + 1;
+	    row += strlenpt(line->data) / editwincols + 1;
 	    line = line->next;
 	}
-	openfile->current_y += xpt / editwincols;
 
-	if (openfile->current_y < editwinrows)
-	    wmove(edit, openfile->current_y, xpt % editwincols + margin);
+	/* Add the number of wraps in the current line before the cursor. */
+	row += xpt / editwincols;
+	col = xpt % editwincols;
     } else
 #endif
     {
-	openfile->current_y = openfile->current->lineno -
-				openfile->edittop->lineno;
-
-	if (openfile->current_y < editwinrows)
-	    wmove(edit, openfile->current_y, xpt - get_page_start(xpt) + margin);
+	row = openfile->current->lineno - openfile->edittop->lineno;
+	col = xpt - get_page_start(xpt);
     }
+
+    if (row < editwinrows)
+	wmove(edit, row, margin + col);
+
+    openfile->current_y = row;
 }
 
 /* edit_draw() takes care of the job of actually painting a line into
@@ -2627,6 +2624,9 @@ void edit_draw(filestruct *fileptr, const char *converted,
 	    /* Compute on which screen column to start painting. */
 	    start_col = strnlenpt(fileptr->data, top_x) - from_col;
 
+	    if (start_col < 0)
+		start_col = 0;
+
 	    thetext = converted + actual_x(converted, start_col);
 
 	    /* If the end of the mark is onscreen, compute how many
@@ -2647,8 +2647,9 @@ void edit_draw(filestruct *fileptr, const char *converted,
 /* Redraw the line at fileptr.  The line will be displayed so that the
  * character with the given index is visible -- if necessary, the line
  * will be horizontally scrolled.  In softwrap mode, however, the entire
- * line will be displayed.  Likely values of index are current_x or zero.
- * Return the number of additional rows consumed (when softwrapping). */
+ * line will be passed to update_softwrapped_line().  Likely values of
+ * index are current_x or zero.  Return the number of additional rows
+ * consumed (when softwrapping). */
 int update_line(filestruct *fileptr, size_t index)
 {
     int row = 0;
@@ -2659,44 +2660,18 @@ int update_line(filestruct *fileptr, size_t index)
 	/* From which column a horizontally scrolled line is displayed. */
 
 #ifndef NANO_TINY
-    if (ISSET(SOFTWRAP)) {
-	filestruct *line = openfile->edittop;
-
-	/* Find out on which screen row the target line should be shown. */
-	while (line != fileptr && line != NULL) {
-	    row += (strlenpt(line->data) / editwincols) + 1;
-	    line = line->next;
-	}
-    } else
+    if (ISSET(SOFTWRAP))
+	return update_softwrapped_line(fileptr);
 #endif
-	row = fileptr->lineno - openfile->edittop->lineno;
+
+    row = fileptr->lineno - openfile->edittop->lineno;
 
     /* If the line is offscreen, don't even try to display it. */
-    if (row < 0 || row >= editwinrows)
+    if (row < 0 || row >= editwinrows) {
+	statusline(ALERT, "Badness: tried to display a line on row %i"
+				" -- please report a bug", row);
 	return 0;
-
-#ifndef NANO_TINY
-    if (ISSET(SOFTWRAP)) {
-	size_t full_length = strlenpt(fileptr->data);
-	int starting_row = row;
-
-	for (from_col = 0; from_col <= full_length &&
-			row < editwinrows; from_col += editwincols) {
-	    /* First, blank out the row. */
-	    blank_row(edit, row, 0, COLS);
-
-	    /* Expand the line, replacing tabs with spaces, and control
-	     * characters with their displayed forms. */
-	    converted = display_string(fileptr->data, from_col, editwincols, TRUE);
-
-	    /* Draw the line. */
-	    edit_draw(fileptr, converted, row++, from_col);
-	    free(converted);
-	}
-
-	return (row - starting_row);
     }
-#endif
 
     /* First, blank out the row. */
     blank_row(edit, row, 0, COLS);
@@ -2720,9 +2695,65 @@ int update_line(filestruct *fileptr, size_t index)
     return 1;
 }
 
-/* Check whether old_column and new_column are on different "pages" (or that
- * the mark is on), which means that the relevant line needs to be redrawn. */
-bool need_horizontal_scroll(const size_t old_column, const size_t new_column)
+#ifndef NANO_TINY
+/* Redraw all the chunks of the given line (as far as they fit onscreen),
+ * unless it's edittop, which will be displayed from column firstcolumn.
+ * Return the number of additional rows consumed. */
+int update_softwrapped_line(filestruct *fileptr)
+{
+    int row = 0;
+	/* The row in the edit window we will write to. */
+    filestruct *line = openfile->edittop;
+	/* An iterator needed to find the relevant row. */
+    int starting_row;
+	/* The first row in the edit window that gets updated. */
+    size_t from_col = 0;
+	/* The starting column of the current chunk. */
+    char *converted;
+	/* The data of the chunk with tabs and control characters expanded. */
+    size_t full_length;
+	/* The length of the expanded line. */
+
+    if (fileptr == openfile->edittop)
+	from_col = openfile->firstcolumn;
+    else
+	row -= (openfile->firstcolumn / editwincols);
+
+    /* Find out on which screen row the target line should be shown. */
+    while (line != fileptr && line != NULL) {
+	row += (strlenpt(line->data) / editwincols) + 1;
+	line = line->next;
+    }
+
+    /* If the first chunk is offscreen, don't even try to display it. */
+    if (row < 0 || row >= editwinrows) {
+	statusline(ALERT, "Badness: tried to display a chunk on row %i"
+				" -- please report a bug", row);
+	return 0;
+    }
+
+    full_length = strlenpt(fileptr->data);
+    starting_row = row;
+
+    while (from_col <= full_length && row < editwinrows) {
+	blank_row(edit, row, 0, COLS);
+
+	/* Convert the chunk to its displayable form and draw it. */
+	converted = display_string(fileptr->data, from_col, editwincols, TRUE);
+	edit_draw(fileptr, converted, row++, from_col);
+	free(converted);
+
+	from_col += editwincols;
+    }
+
+    return (row - starting_row);
+}
+#endif
+
+/* Check whether the mark is on, or whether old_column and new_column are on
+ * different "pages" (in softwrap mode, only the former applies), which means
+ * that the relevant line needs to be redrawn. */
+bool line_needs_update(const size_t old_column, const size_t new_column)
 {
 #ifndef NANO_TINY
     if (openfile->mark_set)
@@ -2732,79 +2763,132 @@ bool need_horizontal_scroll(const size_t old_column, const size_t new_column)
 	return (get_page_start(old_column) != get_page_start(new_column));
 }
 
-/* Determine how many file lines we can display, accounting for softwraps. */
-void compute_maxlines(void)
+/* Try to move up nrows softwrapped chunks from the given line and the
+ * given column (leftedge).  After moving, leftedge will be set to the
+ * starting column of the current chunk.  Return the number of chunks we
+ * couldn't move up, which will be zero if we completely succeeded. */
+int go_back_chunks(int nrows, filestruct **line, size_t *leftedge)
+{
+    int i;
+
+    /* Don't move more chunks than the window can hold. */
+    if (nrows > editwinrows - 1)
+	nrows = (editwinrows < 2) ? 1 : editwinrows - 1;
+
+#ifndef NANO_TINY
+    if (ISSET(SOFTWRAP)) {
+	size_t current_chunk = (*leftedge) / editwincols;
+
+	/* Recede through the requested number of chunks. */
+	for (i = nrows; i > 0; i--) {
+	    if (current_chunk > 0) {
+		current_chunk--;
+		continue;
+	    }
+
+	    if (*line == openfile->fileage)
+		break;
+
+	    *line = (*line)->prev;
+	    current_chunk = strlenpt((*line)->data) / editwincols;
+	}
+
+	/* Only change leftedge when we actually could move. */
+	if (i < nrows)
+	    *leftedge = current_chunk * editwincols;
+    } else
+#endif
+	for (i = nrows; i > 0 && (*line)->prev != NULL; i--)
+	    *line = (*line)->prev;
+
+    return i;
+}
+
+/* Try to move down nrows softwrapped chunks from the given line and the
+ * given column (leftedge).  After moving, leftedge will be set to the
+ * starting column of the current chunk.  Return the number of chunks we
+ * couldn't move down, which will be zero if we completely succeeded. */
+int go_forward_chunks(int nrows, filestruct **line, size_t *leftedge)
+{
+    int i;
+
+    /* Don't move more chunks than the window can hold. */
+    if (nrows > editwinrows - 1)
+	nrows = (editwinrows < 2) ? 1 : editwinrows - 1;
+
+#ifndef NANO_TINY
+    if (ISSET(SOFTWRAP)) {
+	size_t current_chunk = (*leftedge) / editwincols;
+	size_t last_chunk = strlenpt((*line)->data) / editwincols;
+
+	/* Advance through the requested number of chunks. */
+	for (i = nrows; i > 0; i--) {
+	    if (current_chunk < last_chunk) {
+		current_chunk++;
+		continue;
+	    }
+
+	    if (*line == openfile->filebot)
+		break;
+
+	    *line = (*line)->next;
+	    current_chunk = 0;
+	    last_chunk = strlenpt((*line)->data) / editwincols;
+	}
+
+	/* Only change leftedge when we actually could move. */
+	if (i < nrows)
+	    *leftedge = current_chunk * editwincols;
+    } else
+#endif
+	for (i = nrows; i > 0 && (*line)->next != NULL; i--)
+	    *line = (*line)->next;
+
+    return i;
+}
+
+/* Return TRUE if there are fewer than a screen's worth of lines between
+ * the line at line number was_lineno (and column was_leftedge, if we're
+ * in softwrap mode) and the line at current[current_x]. */
+bool less_than_a_screenful(size_t was_lineno, size_t was_leftedge)
 {
 #ifndef NANO_TINY
     if (ISSET(SOFTWRAP)) {
-	filestruct *line = openfile->edittop;
-	int row = 0;
+	filestruct *line = openfile->current;
+	size_t leftedge = (xplustabs() / editwincols) * editwincols;
+	int rows_left = go_back_chunks(editwinrows - 1, &line, &leftedge);
 
-	maxlines = 0;
-
-	while (row < editwinrows && line != NULL) {
-	    row += (strlenpt(line->data) / editwincols) + 1;
-	    line = line->next;
-	    maxlines++;
-	}
-
-	if (row < editwinrows)
-	    maxlines += (editwinrows - row);
-#ifdef DEBUG
-	fprintf(stderr, "recomputed: maxlines = %d\n", maxlines);
-#endif
+	return (rows_left > 0 || line->lineno < was_lineno ||
+		(line->lineno == was_lineno && leftedge <= was_leftedge));
     } else
-#endif /* !NANO_TINY */
-	maxlines = editwinrows;
+#endif
+	return (openfile->current->lineno - was_lineno < editwinrows);
 }
 
 /* Scroll the edit window in the given direction and the given number of rows,
- * and draw new lines on the blank lines left after the scrolling.  We change
- * edittop, and assume that current and current_x are up to date. */
+ * and draw new lines on the blank lines left after the scrolling. */
 void edit_scroll(scroll_dir direction, int nrows)
 {
-    int i;
     filestruct *line;
+    size_t leftedge;
 
     /* Part 1: nrows is the number of rows we're going to scroll the text of
      * the edit window. */
 
-    /* Move the top line of the edit window up or down (depending on the value
-     * of direction) nrows rows, or as many rows as we can if there are fewer
-     * than nrows rows available. */
-    for (i = nrows; i > 0; i--) {
-	if (direction == UPWARD) {
-	    if (openfile->edittop == openfile->fileage)
-		break;
-	    openfile->edittop = openfile->edittop->prev;
-	} else {
-	    if (openfile->edittop == openfile->filebot)
-		break;
-	    openfile->edittop = openfile->edittop->next;
-	}
-
-#ifndef NANO_TINY
-	/* Don't over-scroll on long lines. */
-	if (ISSET(SOFTWRAP) && direction == UPWARD) {
-	    ssize_t len = strlenpt(openfile->edittop->data) / editwincols;
-	    i -= len;
-	    if (len > 0)
-		refresh_needed = TRUE;
-	}
-#endif
-    }
-
-    /* Limit nrows to the number of rows we could scroll. */
-    nrows -= i;
+    /* Move the top line of the edit window the requested number of rows up or
+     * down, and reduce the number of rows with the amount we couldn't move. */
+    if (direction == UPWARD)
+	nrows -= go_back_chunks(nrows, &openfile->edittop, &openfile->firstcolumn);
+    else
+	nrows -= go_forward_chunks(nrows, &openfile->edittop, &openfile->firstcolumn);
 
     /* Don't bother scrolling zero rows, nor more than the window can hold. */
     if (nrows == 0)
 	return;
-    if (nrows >= editwinrows)
+    if (nrows >= editwinrows) {
 	refresh_needed = TRUE;
-
-    if (refresh_needed == TRUE)
 	return;
+    }
 
     /* Scroll the text of the edit window a number of rows up or down. */
     scrollok(edit, TRUE);
@@ -2814,41 +2898,88 @@ void edit_scroll(scroll_dir direction, int nrows)
     /* Part 2: nrows is now the number of rows in the scrolled region of the
      * edit window that we need to draw. */
 
-    /* If the scrolled region contains only one row, and the row before it is
-     * visible in the edit window, we need to draw it too.  If the scrolled
-     * region is more than one row, and the rows before and after it are
-     * visible in the edit window, we need to draw them too. */
-    nrows += (nrows == 1) ? 1 : 2;
+    /* If we're not on the first "page" (when not softwrapping), or the mark
+     * is on, the row next to the scrolled region needs to be redrawn too. */
+    if (line_needs_update(openfile->placewewant, 0) && nrows < editwinrows)
+	nrows++;
 
-    if (nrows > editwinrows)
-	nrows = editwinrows;
-
-    /* If we scrolled up, we're on the line before the scrolled region. */
+    /* If we scrolled backward, start on the first line of the blank region. */
     line = openfile->edittop;
+    leftedge = openfile->firstcolumn;
 
-    /* If we scrolled down, move down to the line before the scrolled region. */
-    if (direction == DOWNWARD) {
-	for (i = editwinrows - nrows; i > 0 && line != NULL; i--)
-	    line = line->next;
-    }
+    /* If we scrolled forward, move down to the start of the blank region. */
+    if (direction == DOWNWARD)
+	go_forward_chunks(editwinrows - nrows, &line, &leftedge);
 
-    /* Draw new lines on any blank rows before or inside the scrolled region.
-     * If we scrolled down and we're on the top row, or if we scrolled up and
-     * we're on the bottom row, the row won't be blank, so we don't need to
-     * draw it unless the mark is on or we're not on the first "page". */
-    for (i = nrows; i > 0 && line != NULL; i--) {
-	if ((i == nrows && direction == DOWNWARD) ||
-			(i == 1 && direction == UPWARD)) {
-	    if (need_horizontal_scroll(openfile->placewewant, 0))
-		update_line(line, (line == openfile->current) ?
-			openfile->current_x : 0);
-	} else
-	    update_line(line, (line == openfile->current) ?
-		openfile->current_x : 0);
+#ifndef NANO_TINY
+    /* Compensate for the earlier onscreen chunks of a softwrapped line
+     * when the first blank row happens to be in the middle of that line. */
+    if (ISSET(SOFTWRAP) && line != openfile->edittop)
+	nrows += leftedge / editwincols;
+#endif
+
+    /* Draw new content on the blank rows inside the scrolled region
+     * (and on the bordering row too when it was deemed necessary). */
+    while (nrows > 0 && line != NULL) {
+	nrows -= update_line(line, (line == openfile->current) ?
+					openfile->current_x : 0);
 	line = line->next;
     }
+}
 
-    compute_maxlines();
+/* Ensure that firstcolumn is at the starting column of the softwrapped chunk
+ * it's on.  We need to do this when the number of columns of the edit window
+ * has changed, because then the width of softwrapped chunks has changed. */
+void ensure_firstcolumn_is_aligned(void)
+{
+#ifndef NANO_TINY
+    if (openfile->firstcolumn % editwincols != 0)
+	openfile->firstcolumn -= (openfile->firstcolumn % editwincols);
+#endif
+}
+
+/* Return TRUE if current[current_x] is above the top of the screen, and FALSE
+ * otherwise. */
+bool current_is_above_screen(void)
+{
+#ifndef NANO_TINY
+    if (ISSET(SOFTWRAP))
+	/* The cursor is above screen when current[current_x] is before edittop
+	 * at column firstcolumn. */
+	return (openfile->current->lineno < openfile->edittop->lineno ||
+		(openfile->current->lineno == openfile->edittop->lineno &&
+		xplustabs() < openfile->firstcolumn));
+    else
+#endif
+	return (openfile->current->lineno < openfile->edittop->lineno);
+}
+
+/* Return TRUE if current[current_x] is below the bottom of the screen, and
+ * FALSE otherwise. */
+bool current_is_below_screen(void)
+{
+#ifndef NANO_TINY
+    if (ISSET(SOFTWRAP)) {
+	filestruct *line = openfile->edittop;
+	size_t leftedge = openfile->firstcolumn;
+
+	/* If current[current_x] is more than a screen's worth of lines after
+	 * edittop at column firstcolumn, it's below the screen. */
+	return (go_forward_chunks(editwinrows - 1, &line, &leftedge) == 0 &&
+			(line->lineno < openfile->current->lineno ||
+			(line->lineno == openfile->current->lineno &&
+			leftedge < (xplustabs() / editwincols) * editwincols)));
+    } else
+#endif
+	return (openfile->current->lineno >=
+			openfile->edittop->lineno + editwinrows);
+}
+
+/* Return TRUE if current[current_x] is offscreen relative to edittop, and
+ * FALSE otherwise. */
+bool current_is_offscreen(void)
+{
+    return (current_is_above_screen() || current_is_below_screen());
 }
 
 /* Update any lines between old_current and current that need to be
@@ -2860,12 +2991,7 @@ void edit_redraw(filestruct *old_current)
     openfile->placewewant = xplustabs();
 
     /* If the current line is offscreen, scroll until it's onscreen. */
-    if (openfile->current->lineno >= openfile->edittop->lineno + maxlines ||
-#ifndef NANO_TINY
-		(openfile->current->lineno == openfile->edittop->lineno + maxlines - 1 &&
-		ISSET(SOFTWRAP) && strlenpt(openfile->current->data) >= editwincols) ||
-#endif
-		openfile->current->lineno < openfile->edittop->lineno) {
+    if (current_is_offscreen()) {
 	adjust_viewport((focusing || !ISSET(SMOOTH_SCROLL)) ? CENTERING : FLOWING);
 	refresh_needed = TRUE;
 	return;
@@ -2891,7 +3017,7 @@ void edit_redraw(filestruct *old_current)
 
     /* Update current if the mark is on or it has changed "page", or if it
      * differs from old_current and needs to be horizontally scrolled. */
-    if (need_horizontal_scroll(was_pww, openfile->placewewant) ||
+    if (line_needs_update(was_pww, openfile->placewewant) ||
 			(old_current != openfile->current &&
 			get_page_start(openfile->placewewant) > 0))
 	update_line(openfile->current, openfile->current_x);
@@ -2904,15 +3030,11 @@ void edit_refresh(void)
     filestruct *line;
     int row = 0;
 
-    /* Figure out what maxlines should really be. */
-    compute_maxlines();
-
     /* If the current line is out of view, get it back on screen. */
-    if (openfile->current->lineno < openfile->edittop->lineno ||
-		openfile->current->lineno >= openfile->edittop->lineno + maxlines) {
+    if (current_is_offscreen()) {
 #ifdef DEBUG
-	fprintf(stderr, "edit-refresh: line = %ld, edittop = %ld and maxlines = %d\n",
-		(long)openfile->current->lineno, (long)openfile->edittop->lineno, maxlines);
+	fprintf(stderr, "edit-refresh: line = %ld, edittop = %ld and editwinrows = %d\n",
+		(long)openfile->current->lineno, (long)openfile->edittop->lineno, editwinrows);
 #endif
 	adjust_viewport((focusing || !ISSET(SMOOTH_SCROLL)) ? CENTERING : STATIONARY);
     }
@@ -2960,13 +3082,8 @@ void adjust_viewport(update_type manner)
     if (manner == CENTERING)
 	goal = editwinrows / 2;
     else if (manner == FLOWING) {
-	if (openfile->current->lineno >= openfile->edittop->lineno) {
+	if (!current_is_above_screen())
 	    goal = editwinrows - 1;
-#ifndef NANO_TINY
-	    if (ISSET(SOFTWRAP))
-		goal -= strlenpt(openfile->current->data) / editwincols;
-#endif
-	}
     } else {
 	goal = openfile->current_y;
 
@@ -2977,21 +3094,17 @@ void adjust_viewport(update_type manner)
 
     openfile->edittop = openfile->current;
 
-    while (goal > 0 && openfile->edittop->prev != NULL) {
-	openfile->edittop = openfile->edittop->prev;
-	goal--;
 #ifndef NANO_TINY
-	if (ISSET(SOFTWRAP)) {
-	    goal -= strlenpt(openfile->edittop->data) / editwincols;
-	    if (goal < 0)
-		openfile->edittop = openfile->edittop->next;
-	}
+    if (ISSET(SOFTWRAP))
+	openfile->firstcolumn = (xplustabs() / editwincols) * editwincols;
 #endif
-    }
+
+    /* Move edittop back goal rows, starting at current[current_x]. */
+    go_back_chunks(goal, &openfile->edittop, &openfile->firstcolumn);
+
 #ifdef DEBUG
     fprintf(stderr, "adjust_viewport(): setting edittop to lineno %ld\n", (long)openfile->edittop->lineno);
 #endif
-    compute_maxlines();
 }
 
 /* Unconditionally redraw the entire screen. */
@@ -3032,10 +3145,10 @@ void display_main_list(void)
     bottombars(MMAIN);
 }
 
-/* If constant is TRUE, we display the current cursor position only if
- * suppress_cursorpos is FALSE.  If constant is FALSE, we display the
- * position always.  In any case we reset suppress_cursorpos to FALSE. */
-void do_cursorpos(bool constant)
+/* Show info about the current cursor position on the statusbar.
+ * Do this unconditionally when force is TRUE; otherwise, only if
+ * suppress_cursorpos is FALSE.  In any case, reset the latter. */
+void do_cursorpos(bool force)
 {
     char saved_byte;
     size_t sum, cur_xpt = xplustabs() + 1;
@@ -3056,8 +3169,8 @@ void do_cursorpos(bool constant)
     if (openfile->current != openfile->filebot)
 	sum--;
 
-    /* If the position needs to be suppressed, don't suppress it next time. */
-    if (suppress_cursorpos && constant) {
+    /* If the showing needs to be suppressed, don't suppress it next time. */
+    if (suppress_cursorpos && !force) {
 	suppress_cursorpos = FALSE;
 	return;
     }
@@ -3081,7 +3194,7 @@ void do_cursorpos(bool constant)
 /* Unconditionally display the current cursor position. */
 void do_cursorpos_void(void)
 {
-    do_cursorpos(FALSE);
+    do_cursorpos(TRUE);
 }
 
 void enable_nodelay(void)
@@ -3100,15 +3213,17 @@ void disable_nodelay(void)
  * expect word to have tabs and control characters expanded. */
 void spotlight(bool active, const char *word)
 {
-    size_t word_len = strlenpt(word), room;
+    size_t word_span = strlenpt(word);
+    size_t room = word_span;
 
     /* Compute the number of columns that are available for the word. */
-    room = editwincols + get_page_start(xplustabs()) - xplustabs();
+    if (!ISSET(SOFTWRAP)) {
+	room = editwincols + get_page_start(xplustabs()) - xplustabs();
 
-    assert(room > 0);
-
-    if (word_len > room)
-	room--;
+	/* If the word is partially offscreen, reserve space for the "$". */
+	if (word_span > room)
+	    room--;
+    }
 
     reset_cursor();
 
@@ -3116,12 +3231,12 @@ void spotlight(bool active, const char *word)
 	wattron(edit, hilite_attribute);
 
     /* This is so we can show zero-length matches. */
-    if (word_len == 0)
+    if (word_span == 0)
 	waddch(edit, ' ');
     else
 	waddnstr(edit, word, actual_x(word, room));
 
-    if (word_len > room)
+    if (word_span > room)
 	waddch(edit, '$');
 
     if (active)

syntax/nanorc.nanorc

@@ -7,7 +7,7 @@ comment "#"
 icolor brightred "^[[:space:]]*((un)?(bind|set)|include|syntax|header|comment|magic|linter|i?color|extendsyntax).*$"
 
 # Keywords
-icolor brightgreen "^[[:space:]]*(set|unset)[[:space:]]+(allow_insecure_backup|autoindent|backup|backwards|boldtext|casesensitive|constantshow|cut|fill[[:space:]]+[[:digit:]]+|historylog|justifytrim|locking|morespace|mouse|multibuffer|noconvert|nohelp|nonewlines|nowrap|positionlog|preserve|quickblank|quiet|rebinddelete|rebindkeypad|regexp|showcursor|smarthome|smooth|softwrap|suspend|tabsize[[:space:]]+[[:digit:]]+|tabstospaces|tempfile|unix|view|wordbounds)\>"
+icolor brightgreen "^[[:space:]]*(set|unset)[[:space:]]+(allow_insecure_backup|autoindent|backup|backwards|boldtext|casesensitive|constantshow|cut|fill[[:space:]]+[[:digit:]]+|historylog|justifytrim|linenumbers|locking|morespace|mouse|multibuffer|noconvert|nohelp|nopauses|nonewlines|nowrap|positionlog|preserve|quickblank|quiet|rebinddelete|rebindkeypad|regexp|showcursor|smarthome|smooth|softwrap|suspend|tabsize[[:space:]]+[[:digit:]]+|tabstospaces|tempfile|unix|view|wordbounds)\>"
 icolor yellow "^[[:space:]]*set[[:space:]]+((function|key|number|status|title)color)[[:space:]]+(bright)?(white|black|red|blue|green|yellow|magenta|cyan)?(,(white|black|red|blue|green|yellow|magenta|cyan))?\>" "[[:space:]]+[[:digit:]]+$"
 icolor brightgreen "^[[:space:]]*set[[:space:]]+(backupdir|brackets|functioncolor|keycolor|matchbrackets|numbercolor|operatingdir|punct|quotestr|speller|statuscolor|titlecolor|whitespace|wordchars)[[:space:]]+"
 icolor brightgreen "^[[:space:]]*bind[[:space:]]+((\^([[:alpha:]]|[]0-9\^_]|Space)|M-([[:alpha:]]|[]!"#$%&'()*+,./0-9:;<=>?@\^_`{|}~-]|Space))|F([1-9]|1[0-6])|Ins|Del)[[:space:]]+[[:alpha:]]+[[:space:]]+(all|main|search|replace(with)?|gotoline|writeout|insert|ext(ernal)?cmd|help|spell|linter|browser|whereisfile|gotodir)([[:space:]]+#|[[:space:]]*$)"