po: update translations and regenerate POT file and PO files

When one wants an Undo to restore the cursor to where it was before an
operation, one shouldn't fiddle with the position before it is stored
in the relevant undo item.

This fixes https://savannah.gnu.org/bugs/?62341.

Bug existed since version 4.9, commit 38af812a.

(This effectively reverts commit 38af812a from two years ago.)

ChangeLog

@@ -1,3 +1,318 @@
+Changes between v6.2 and v6.3:
+------------------------------
+
+Benno Schulenberg (41):
+      build: add the --disable-maintainer-mode option to ./configure
+      build: fix compilation for --enable-{tiny,nanorc,color}
+      build: fix compilation when configured with --disable-color
+      build: remove an obsolete check -- the dependent code was deleted
+      bump version numbers and add a news item for the 6.3 release
+      display: suppress spotlight yellow and error red when NO_COLOR is set
+      docs: add an example binding for copying text to the system clipboard
+      execute: clear an anchor only when the whole buffer gets filtered
+      execute: don't crash when an empty buffer is piped through a command
+      execute: stay on the same line number when filtering the whole buffer
+      feedback: show extra warning when writing failed due to "No space left"
+      files: do not change to a higher directory when the working one is gone
+      files: show a warning when the working directory is gone (when used)
+      files: when the working directory exists, still check its accessibility
+      filtering: close all output descriptors, so that 'xsel' will terminate
+      formatting: change cursor position only after saving it in the undo item
+      gnulib: pull in the workaround for a build problem on NetBSD
+      gnulib: update to its current upstream state
+      justify: stay at the same line number when doing a full justification
+      painting: colorize text also after an unterminated start match
+      painting: look for another start match only after the actual end match
+      painting: recalculate the multidata when making large strides or changes
+      painting: stop coloring an extremely long line after 2000 bytes
+      painting: tighten the check for a lacking end match on a colored line
+      syntax: xml: colorize /> properly, and colorize prolog tags differently
+      syntax: xml: colorize user-defined entities differently
+      tweaks: avoid a function call when two plain assignments will do
+      tweaks: change the indentation of a list, to match other indentations
+      tweaks: don't leave an orphaned temporary file behind when writing fails
+      tweaks: elide an unneeded call of strlen()
+      tweaks: exclude the extra truncation warning from the tiny version
+      tweaks: make the triggering of the recalculation of multidata less eager
+      tweaks: move the saving and restoring of flags to where it is needed
+      tweaks: normalize the indentation after the previous change
+      tweaks: prevent the adding of an unwanted newline in a different way
+      tweaks: remove redundant braces, and add two translator hints
+      tweaks: remove some stray spaces before a comma
+      tweaks: simplify a bit of code, eliding two labels and three gotos
+      tweaks: simplify a fragment of code, and fold two lines together
+      tweaks: trim a few comments, rename a function, and reshuffle some code
+      verbatim: with --zero, keep cursor in viewport when it was on bottom row
+
+Mike Frysinger (1):
+      general: fix building for Windows
+
+
+Changes between v6.1 and v6.2:
+------------------------------
+
+Benno Schulenberg (14):
+      bump version numbers and add a news item for the 6.2 release
+      display: suppress the bottom-bar wiping only when the user is editing
+      linter: adjust the parsing to accommodate for a modern 'pyflakes'
+      syntaxes: fold a couple of regexes together, and improve a few comments
+      tweaks: change the type of a variable, to avoid a compiler warning
+      tweaks: consistently backslash-escape the dash in M-letter keystrokes
+      tweaks: rename a misnamed variable
+      tweaks: rename a variable, reshuffle five lines, and snip two comments
+      tweaks: rename a variable, to be more correct, and adjust two comments
+      tweaks: rename a variable, to be more fitting
+      tweaks: rename two more variables, and drop unneeded initializations
+      tweaks: rename two variables (to get rid of a prefix), and elide a third
+      tweaks: store a result, to avoid calling a function twice
+      tweaks: use an intermediate variable, to avoid using one for two purposes
+
+
+Changes between v6.0 and v6.1:
+------------------------------
+
+Benno Schulenberg (37):
+      build: fix compilation when configured with --enable-tiny
+      build: prevent autopoint from overwriting a newer M4 file from gnulib
+      bump version numbers and add a news item for the 6.1 release
+      copyright: update the last year for significantly changed files
+      copyright: update the years for the FSF
+      docs: mention bindable function 'zero', for toggling the interface bars
+      docs: mention 'set guidestripe' and 'set unix' in the sample nanorc
+      docs: remove obsolete Ctrl+Z from the cheatsheet; mention Alt+X instead
+      files: let ^C cancel the exiting when the file on disk was changed
+      gnulib: update to its current upstream state
+      help: make the description of <Tab> more accurate
+      help: update the description of M-D, to match the actual order of counts
+      input: instead of moving waiting keycodes, just increment a pointer
+      input: suppress any spotlighting when there are more keycodes waiting
+      menus: don't show M-6 in the help lines of any prompt
+      prompt: allow the user to copy the answer to the cutbuffer (with M-6)
+      prompt: let ^K erase text after cursor (if any), otherwise whole answer
+      tweaks: add some feedback to the autogen.sh script, to ease the wait
+      tweaks: add some small, clarifying comments
+      tweaks: adjust a translator hint, to fit the order in the POT file
+      tweaks: drop foreign M-U and M-R from among the sample CUA bindings
+      tweaks: remove a redundant check -- add a different one for symmetry
+      tweaks: remove two redundant checks
+      tweaks: rename a function and its two parameters, for clarity
+      tweaks: rename a function and reshuffle its call
+      tweaks: rename a function, to not contain the name of a variable
+      tweaks: rename another variable, to better fit in with its sisters
+      tweaks: rename a variable and a parameter, to be more descriptive
+      tweaks: rename a variable, away from an abbreviation
+      tweaks: rename a variable, for clarity and contrast
+      tweaks: rename a variable, to make it clearer it refers to a window
+      tweaks: rename two variables, and elide a near-enough duplicate
+      tweaks: reshuffle some sample bindings, to group them differently
+      tweaks: reword two comments, and rename a variable (away from an abbrev)
+      tweaks: stop asking the terminal for its new size -- let ncurses do it
+      tweaks: use some symbolic names instead of unclear numeric values
+      tweaks: when discarding keycodes, don't bother parsing them
+
+
+Changes between v5.9 and v6.0:
+------------------------------
+
+Benno Schulenberg (192):
+      bindings: allow rebinding ^Z also on a Linux console (a VT)
+      bindings: allow toggling line numbers (when enabled) also in tiny version
+      bindings: let ^T in the tiny version invoke spell checker (when included)
+      browser: with --zero, do not use the bottom row for displaying filenames
+      build: fix compilation when configured with --disable-color
+      build: fix compilation when configured with --disable-nanorc
+      build: fix compilation when configured with --enable-tiny
+      build: fix compilation with --enable-tiny --enable-nanorc
+      build: fix compilation with --enable-tiny --enable-wrapping
+      build: include the YAML syntax file among the distributed files
+      bump version numbers and add a news item for the 6.0 release
+      display: clear the status bar early enough, so that --zero can show text
+      display: do not wipe the status bar when --zero or --minibar is active
+      display: ensure feedback will be cleared also on a one-row terminal
+      display: make sure there are at least as many text lines as help lines
+      display: move some code for overwriting verbatim feedback with --zero
+      display: redraw the screen in tiny version upon resuming from suspension
+      display: with --zero, redraw the bottom row instead of wiping a message
+      docs: add a hint about making ^L do just 'refresh' to the sample nanorc
+      docs: add a meta description for the HTML rendering of the manual
+      docs: add a suggested rebind and three suggested unbinds to the sample rc
+      docs: avoid large Table of Contents at top of HTML version of manual
+      docs: clarify that --enable options do not fully counteract --enable-tiny
+      docs: correct the description of the layout -- four areas, not five
+      docs: document the effect of --quickblank together with --zero/--minibar
+      docs: explain the effect of --zero / -0 / 'set zero'
+      docs: explain what it means when --rawsequences is needed
+      docs: give more examples of things that --enable-tiny excludes
+      docs: improve the title of the manual, away from the bare "nano"
+      docs: list the new color names, from 'rosy' to 'crimson'
+      docs: mark options -z, --suspendable, and 'set suspendable' as obsolete
+      docs: mention "grey" also at the other place where color names are listed
+      docs: mention M-Z (for toggling the interface) among the Feature Toggles
+      docs: mention that --zero and 'set zero' hide also the help lines
+      docs: move the chapter about editor basics into third position
+      docs: prevent a black square in the PDF after the long synopsis line
+      docs: reshuffle a GNU marker, to make the title clearer in search engines
+      docs: reword several of the descriptions in the chapter on building nano
+      docs: reword the beginning of the chapter on nanorc files
+      docs: say thanks to the Indonesian translator
+      feedback: give a more accurate message when the help lines won't appear
+      feedback: refuse the --constantshow toggle (M-C) on a one-row terminal
+      feedback: report an unbindable function key as an "Unknown sequence"
+      feedback: report the number of inserted lines also with --zero or --mini
+      feedback: show a relevant message for M-O when the syntax has 'tabgives'
+      feedback: suppress chatty messages when --zero is active
+      feedback: to have a status bar, suppress --zero while in the help viewer
+      feedback: when reporting an unbound function key, mention its number
+      feedback: when the user types ^Z, say they can suspend nano with ^T^Z
+      feedback: with --mini or --zero, suppress number of lines for new buffer
+      feedback: with --mini/--zero, suppress message when toggling whitespace
+      feedback: with --zero, drop a message in a short while, as with --minibar
+      files: allow inserting also when started with the --noread option
+      files: clear original filename when the user toggles Append or Prepend
+      gnulib: update to its current upstream state
+      help: do not show ^S when --preserve is in effect
+      help: ensure there is a blank line between title bar and start of text
+      help: group the now lone mouse toggle with the "behavioral" ones
+      help: remove an unneeded restriction for small terminals
+      help: skip the leading blank line when the terminal is very flat
+      help: when done, always redraw the "bottom bars", also with --zero
+      history: process file faster by not filtering out hypothetical duplicates
+      input: ensure that no more bytes are consumed than are available
+      justify: correctly determine whether top-of-buffer has been reached
+      memory: avoid a tiny leak when an option with an argument is given twice
+      memory: avoid leaking the filename when dottifying it on the minibar
+      new feature: option --zero for an interface without bars
+      options: make --zero imply --nohelp, and 'set zero' imply 'set nohelp'
+      pasting: when less than a line is pasted, allow automatic hard-wrapping
+      prompt: avoid resetting the history pointer when the search is cancelled
+      prompt: begin at bottom of history list when at secondary prompt
+      prompt: keep a clear answer clear also after an excursion into history
+      rcfile: recognize fourteen new color names, mostly for subdued shades
+      rcfile: remove the deprecated 'cutwordleft' and 'cutwordright' keywords
+      replacing: keep centering the occurrence, also after toggling help lines
+      replacing: keep the spotlighted occurrence in view, also with --zero
+      replacing: keep the spotlighting, also after toggling the help lines
+      search: with --zero, do not obscure an occurrence on the bottom row
+      search: with --zero, drop a message at the same time as the spotlight
+      statusbar: count words in the way that matches how Ctrl+Right moves
+      statusbar: overwrite a message also when using --constant with --zero
+      suspension: enable ^Z by default -- ignore -z option and drop M-Z toggle
+      suspension: leave ^Z unbound by default -- just ^T^Z will suspend nano
+      syntax: debian: remove file -- Debian itself will have to handle it
+      syntax: default: colorize comments as one of the last things
+      syntax: default: colorize dates, URLs, and nano's release motto
+      syntax: email: use a character class, as \s does not work inside brackets
+      syntax: gentoo: remove file -- Gentoo itself will have to handle it
+      syntax: nanorc: add 'execute' menu for unbind, and drop a bad constraint
+      syntax: nanorc: avoid colorizing #rgb codes as if they were comments
+      syntax: nanorc: colorize a trailing comment when it begins with non-hex
+      syntax: nanorc: colorize each of the fourteen new color names as valid
+      syntax: nanorc: improve the file-matching regex
+      syntax: nanorc: paint arguments of 'include' and 'extendsyntax' specially
+      syntax: nanorc: require whitespace before the start= and end= keywords
+      syntax: python: colorize backslash escapes, such as \n and \xef
+      syntax: ruby: colorize embedded documentation as a comment
+      syntax: rust: do not colorize as string the text between two strings
+      syntax: sql: add a few more missing keywords, like TRUE and FALSE
+      syntax: sql: add more missing keywords, like INNER and OUTER JOIN
+      syntax: sql: add some missing keywords, like ALL and ANY and OR
+      syntax: sql: add two missing data types -- xml and tsquery
+      syntax: sql: colorize as flow control only keywords that clearly are such
+      syntax: sql: colorize keywords regardless of case, and tweak the colors
+      syntax: sql: colorize only single-quoted things as strings
+      syntax: sql: colorize strings differently than types
+      syntax: sql: remove alien stuff -- it was copied mostly from ruby syntax
+      syntax: texinfo: be more precise in colorizing @commands
+      syntax: texinfo: colorize the special @-plus-punctuation commands too
+      syntaxes: avoid coloring "this\" as if it were a valid string
+      syntaxes: colorize hex more strictly by using character class [:xdigit:]
+      syntaxes: drop three redundant end-of-line anchors
+      syntaxes: undouble the backslash within bracket expressions
+      syntaxes: use one regex for coloring quoted strings, to avoid overlap
+      tabbing: also with --zero, stay one row away from the prompt bar
+      tweaks: add an auxiliary variable, to prepare for handling --zero
+      tweaks: add two spaces and two comments, and drop an internal check
+      tweaks: adjust two values -- help lines need at least 6 rows to be shown
+      tweaks: avoid a compiler warning with --enable-tiny --enable-linenumbers
+      tweaks: avoid redrawing the entire window when just a 'touch' will do
+      tweaks: condense the definitions of all the empty functions
+      tweaks: condense the regexes for Types in the SQL syntax
+      tweaks: don't redraw the help lines (if present), and normalize a brace
+      tweaks: drop a fragment of code that became functionless
+      tweaks: elevate two messages, so they get shown with --mini or --zero
+      tweaks: elide a variable that is confusing and has just one use case
+      tweaks: elide two functions that each were called just once
+      tweaks: elide two parameters, as they are now always the same
+      tweaks: exclude some hidden-interface code from the tiny version
+      tweaks: exclude some suspension code from the tiny version
+      tweaks: fix a parentheses mistake -- found by a warning from Clang
+      tweaks: fix a somewhat humorous typo
+      tweaks: fix typo, and improve description of 'set zero' in sample nanorc
+      tweaks: fold a special case into the general one
+      tweaks: fold some regexes together, and trim or improve some comments
+      tweaks: frob a couple of comments, and drop two, for conciseness
+      tweaks: improve a comment, and drop two cluttering compile conditions
+      tweaks: invert a condition, to get an early return instead of indentation
+      tweaks: just let do_wrap() set 'refresh_needed' instead of returning TRUE
+      tweaks: mark keystrokes consistently with @kbd in the manual
+      tweaks: move a translator hint to where xgettext will see it
+      tweaks: normalize whitespace, drop unneeded prototype, condense comment
+      tweaks: on one-row terminals, suppress the message for two toggles
+      tweaks: place the unsetting of a flag better, and rename a variable
+      tweaks: put three email addresses between the customary angled brackets
+      tweaks: reassign a copy of a string to a variable more economically
+      tweaks: reduce redundancy (--enable-color implies --enable-nanorc)
+      tweaks: remove redundant pair of parentheses, and swap two alternatives
+      tweaks: remove redundant parentheses, trim comments, fold some regexes
+      tweaks: remove two unneeded unsettings
+      tweaks: rename a function and its parameter, to be clearer
+      tweaks: rename a function, away from using an abbreviation
+      tweaks: rename a function, for some contrast and to get rid of a suffix
+      tweaks: rename a function, to describe better what it does nowadays
+      tweaks: rename a function, to make it make sense
+      tweaks: rename a variable, to be distinctive and less confusing
+      tweaks: rename a variable, to be easier to read and to make more sense
+      tweaks: rename five empty functions, to get rid of a meaningless suffix
+      tweaks: rename three functions, to better fit the general scheme
+      tweaks: rename three parameters, away from single letters
+      tweaks: rename two empty functions, to be more to the point
+      tweaks: rename two functions, to get rid of another senseless suffix
+      tweaks: rename two functions, to get rid of one more senseless suffix
+      tweaks: rename two functions, to get rid of the senseless suffix of one
+      tweaks: rename two more functions, to lose a senseless suffix
+      tweaks: rename two parameters and one variable, away from single letters
+      tweaks: rename two variables, away from abbreviations
+      tweaks: rename two variables, to fit with the names of similar ones
+      tweaks: replace a verbose condition with a simpler early return
+      tweaks: replace the obscure @* with the slightly clearer @sp
+      tweaks: replace two direct refreshes with two scheduled ones
+      tweaks: reshuffle a coloring rule, to have related ones together
+      tweaks: reshuffle a few lines, and rename a variable
+      tweaks: reshuffle a few lines, for Christmas and to group things better
+      tweaks: reshuffle a fragment of code to a better place
+      tweaks: reshuffle a line and adjust indentation after previous change
+      tweaks: reshuffle a line into its proper order, and improve two comments
+      tweaks: reshuffle some conditions, so that the ifs have similar formats
+      tweaks: reshuffle some conditions, to have more balanced lines
+      tweaks: reshuffle some lines, one for clarity, others for conciseness
+      tweaks: reshuffle the flag conversion into their order in the help text
+      tweaks: reshuffle two conditions, re-indent, and rewrap a line
+      tweaks: reword a paragraph, and use usual M- to depict Meta keystrokes
+      tweaks: rewrap an old news item, for distraction
+      tweaks: rewrap three old NEWS items, for esthetics, and fix a date
+      tweaks: shorten a comment, and drop some conditionalizing
+      tweaks: shorten the description of --zero in the manuals a bit
+      tweaks: shorten two comments, and fold two statements together
+      tweaks: swap two parts of specific regexes, for consistency with others
+      tweaks: untangle two case items, and shorten a message
+      tweaks: use a color closer to the rest of the string, to reduce contrast
+      tweaks: use a few fewer capitals, and drop an unneeded synonym
+
+Brad Town (2):
+      docs: add a description of the hexadecimal #rgb color specification
+      rcfile: support #rgb format for specifying colors in 256-color terminals
+
+
 Changes between v5.8 and v5.9:
 ------------------------------
 

IMPROVEMENTS

@@ -1,6 +1,12 @@
 Improvements in GNU nano
 ========================
 
+Since 6.0:
+  - Option --zero hides the interface and uses the whole terminal for editing.
+  - Colors can be given also in #rgb hexadecimal, to select the nearest color
+    from the 6x6x6 color-cube palette available on 256-color terminals.
+  - Fourteen new color names are available, from rosy to crimson.
+
 Since 5.0:
   - A search briefly spotlights the found text, in black on yellow by default.
   - Option --minibar reduces the interface to a bottom bar with basic info.

NEWS

@@ -1,3 +1,51 @@
+2022.04.28 - GNU nano 6.3 "Wat zullen we drinken? Wat een dorst!"
+• For multiline regexes, text is now colored as soon a start match
+  is found, also when there is no end match at all.
+• The colorizing of any line is stopped after two thousand bytes,
+  to avoid frustrating delays.
+• When environment variable NO_COLOR is set, the two default colors
+  (yellow for the spotlight, red for error messages) are suppressed
+  when no interface colors are specified in a nanorc file.
+• Full justification and piping the whole buffer through a command
+  now keep the cursor at the same line number.
+• Utility 'xsel' can be used to copy a marked region to the system's
+  clipboard.  See doc/sample.nanorc for an example.
+
+2022.02.18 - GNU nano 6.2 "Kamperfoelie"
+• The file browser clears the prompt bar also when using --minibar.
+• Linting now works also with a newer 'pyflakes'.
+
+2022.02.09 - GNU nano 6.1 "Rețelele de socializare sunt ca un frigider"
+• The behavior of ^K at a prompt has been enhanced: when there is some
+  text after the cursor, just this text is erased.  In the most common
+  situation, when the cursor is at the end of the answer, the behavior
+  is as before: the whole answer is erased.
+• At a prompt, M-6 copies the current answer into the cutbuffer.
+• Large external pastes into nano are handled more quickly.
+
+2021.12.15 - GNU nano 6.0 "Humor heeft ook zijn leuke kanten"
+• Option --zero hides the title bar, status bar and help lines, and
+  uses all rows of the terminal as editing area.  The title bar and
+  status bar can be toggled with M-Z.
+• Colors can now be specified also as three-digit hexadecimal numbers,
+  in the format #rgb.  This picks from the 216 index colors (that most
+  terminals know) the color that is nearest to the given values.
+• For users who dislike numbers, there are fourteen new color names:
+  rosy, beet, plum, sea, sky, slate, teal, sage, brown, ocher, sand,
+  tawny, brick, and crimson.
+• Suspension is enabled by default, invokable with ^T^Z.  The options
+  -z, --suspendable, and 'set suspendable' are obsolete and ignored.
+  (In case you want to be able to suspend nano with a single keystroke,
+  you can put 'bind ^Z suspend main' in your nanorc.)
+• When automatic hard-wrapping is in effect, pasting just a few words
+  (without a line break) will now hard-wrap the line when needed.
+• Toggling Append or Prepend clears the current filename.
+• The word count as shown by M-D is now affected by option --wordbounds;
+  with it, nano counts words as 'wc' does; without it (the new default),
+  words are counted in a more human way: seeing punctuation as space.
+• The YAML syntax file is now actually included in the tarball.
+
+
 2021.10.06 - GNU nano 5.9 "El manicomio ha decidido: mañana sol!"
 • The extension of a filename is added to the name of a corresponding
   temporary file, so that spell checking a C file, for example, will
@@ -187,7 +235,7 @@
   It allows running a syntax-specific command on the contents of
   the buffer.
 • ^T will try to run 'hunspell' before 'spell', because it checks
-  spellling for the locale's language and understands UTF-8.
+  spelling for the locale's language and understands UTF-8.
 • Multiple errors or warnings on startup will no longer slow nano
   down but will be indicated on the status bar with trailing dots.
 
@@ -1001,31 +1049,31 @@
              and not saving the search history when compiled with
              configure options.
 
-2008.04.24 - GNU nano 2.1.2 "New York City" is released.  This release
-             contains fixes for binding bad keys, some
-             configure-specific compilation failures, and more issues
-             with the new input back end and in particular the status
-             bar.  Also fixed are some long-standing issues with
-             compiling on AIX, and a segfault when making the terminal
-             window too small.  Rest in Peace Tim and George!
+2008.06.24 - GNU nano 2.1.2 "New York City" is released.  This
+             release contains fixes for binding bad keys, some
+             configure-specific compilation failures, and more
+             issues with the new input back end and in particular
+             the status bar.  Also fixed are some long-standing
+             issues with compiling on AIX, and a segfault when
+             making the terminal window too small.  Rest in Peace
+             Tim and George!
 
-2008.04.01 - GNU nano 2.1.1 won't get fooled again.  This release contains
-             fixes for the new user-rebindable keys (in particular
-             bracket match which was mis-bound), and various
-             problems with translations and configure-related
-             compilation problems are now fixed as well.
-             It also contains new syntax highlighting
-             definitions for TCL, PHP, Gentoo and Debian-related
-             files, and some documentation updates as well.
-             Please continue to send reports with the key
-             binding code to the Savannah page
-             (https://savannah.gnu.org/bugs/?group=nano).
+2008.04.01 - GNU nano 2.1.1 won't get fooled again.  This release
+             contains fixes for the new user-rebindable keys (in
+             particular bracket match which was mis-bound), and
+             various problems with translations and configure-
+             related compilation problems are now fixed as well.
+             It also contains new syntax highlighting definitions
+             for Tcl, PHP, Gentoo and Debian-related files, and
+             some documentation updates as well.  Please continue to
+             send reports with the key binding code to the Savannah
+             page (https://savannah.gnu.org/bugs/?group=nano).
 
 2008.03.18 - GNU nano 2.1.0 "under old mismanagement" is released.
              This first release in the 2.1 development series
              introduces rebindable keys for most actions inside
-             the editor.  Please see the nanorc(5) page for
-             more information on configuring key bindings.  Please
+             the editor.  Please see the nanorc(5) page for more
+             information on configuring key bindings.  Please
              also report all keybinding bugs (crashes, missing
              menu functions) using the Savannah bug tracker URL,
              https://savannah.gnu.org/bugs/?group=nano and
@@ -1786,22 +1834,21 @@
              to upgrade to this release.
 
 2000.11.18 - Nano 0.9.20 is finally out the door.  Probably the biggest
-             change is the brand new way nano displays previous
-             search and replace strings (they are now editable!)
-             This is a break from Pico's (inconsistent) interface, so
-             if you don't like the new way, "Pico" mode (-p on the
-             command line or Meta-P within nano) still works the
-             "old" way.
+             change is the brand new way nano displays previous search
+             and replace strings (they are now editable!)  This is a
+             break from Pico's (inconsistent) interface, so if you
+             don't like the new way, "Pico" mode (-p on the command
+             line or Meta-P within nano) still works the "old" way.
                  Other new features include being able to deal with
-             search strings of any length, a new internal spell
-             feature (courtesy of Mr. Rocco Corsi) and tab completion
-             when reading in or writing out files!  There's also the
-             usual billion or so bug fixes.  Feedback on this release
-             is welcome because so much has changed, especially with
-             the previous string display in search and replace.
-             Email -> nano@nano-editor.org <-.  If you like
-             something, don't like something, or just want to order a
-             pizza, let us know!
+             search strings of any length, a new internal spell feature
+             (courtesy of Mr. Rocco Corsi) and tab completion when
+             reading in or writing out files!  There's also the usual
+             billion or so bug fixes.  Feedback on this release is
+             welcome because so much has changed, especially with the
+             previous string display in search and replace.  Email
+             -> nano@nano-editor.org <-.  If you like something,
+             don't like something, or just want to order a pizza,
+             let us know!
 
 2000.10.02 - Nano 0.9.19 is the "Chris is getting married in less than
              a week and needs a distraction" release.  There are only

README

@@ -15,7 +15,7 @@ Appearance
     In rough ASCII graphics, this is what nano's screen looks like:
 
    ____________________________________________________________________
-  |  GNU nano 5.9                  filename                  Modified  |
+  |  GNU nano 6.3                  filename                  Modified  |
    --------------------------------------------------------------------
   | This is the text window, displaying the contents of a 'buffer',    |
   | the contents of the file you are editing.                          |
@@ -95,13 +95,13 @@ Mailing Lists
 
     There are three nano-related mailing-lists.
 
-    + info-nano@gnu.org is a very low traffic list used to announce
+    * <info-nano@gnu.org> is a very low traffic list used to announce
       new nano versions or other important info about the project.
 
-    + help-nano@gnu.org is for those seeking to get help without
+    * <help-nano@gnu.org> is for those seeking to get help without
       wanting to hear about the technical details of its development.
 
-    + nano-devel@gnu.org is the list used by the people that make nano
+    * <nano-devel@gnu.org> is the list used by the people that make nano
       and a general development discussion list, with moderate traffic.
 
     To subscribe, send email to <name>-request@gnu.org with a subject

README.GIT

@@ -8,19 +8,18 @@ building this needs a bit more care than the official tarballs.
 Prerequisites
 -------------
 
-To successfully compile GNU nano from git, you'll need the following
-packages:
+To successfully compile GNU nano from git, you'll need the following:
 
-- autoconf    (version >= 2.69)
-- automake    (version >= 1.14)
-- autopoint   (version >= 0.18.3)
-- gcc         (version >= 5.0)
-- gettext     (version >= 0.18.3)
-- git         (version >= 2.7.4)
-- groff       (version >= 1.12)
-- make        (any version)
-- pkg-config  (version >= 0.22)
-- texinfo     (version >= 4.0)
+    autoconf    (version >= 2.69)
+    automake    (version >= 1.14)
+    autopoint   (version >= 0.18.3)
+    gcc         (version >= 5.0)
+    gettext     (version >= 0.18.3)
+    git         (version >= 2.7.4)
+    groff       (version >= 1.12)
+    make        (any version)
+    pkg-config  (version >= 0.22)
+    texinfo     (version >= 4.0)
 
 You will also need to have the header files for ncurses installed,
 from libncurses-dev on Debian, ncurses-devel on Fedora, or similar.
@@ -29,14 +28,14 @@ These should all be available in your distro's package manager or
 software center, or otherwise on any GNU mirror.
 
 
-Download the source
--------------------
+Clone the source
+----------------
 
 To obtain the current nano development branch (called 'master'), use the
 following command.  It will create in your current working directory a
 subdirectory called 'nano' containing a copy of all of the files:
 
-    $ git clone git://git.savannah.gnu.org/nano.git nano
+    $ git clone git://git.savannah.gnu.org/nano.git
 
 
 Generate the configure script
@@ -84,6 +83,7 @@ Problems?
 Please submit any bugs you find in the code in git via the bug tracker
 on Savannah (https://savannah.gnu.org/bugs/?group=nano).
 
+
 Contributing something
 ----------------------
 

THANKS

@@ -75,6 +75,7 @@ Johnny A. Solbu <johnny@solbu.net>                    Norwegian Bokmål
 Pierre Tane <tanep@bigfoot.com>                       French
 Yasuaki Taniguchi <yasuakit@gmail.com>                Japanese
 Jacobo Tarrío <jtarrio@trasno.net>                    Galician
+Andika Triwidada <andika@gmail.com>                   Indonesian
 Francisco Javier Tsao Santín <tsao@members.fsf.org>   Galician
 Balázs Úr <urbalazs@gmail.com>                        Hungarian
 Miquel Vidal <miquel@sindominio.net>                  Catalan

autogen.sh

@@ -2,7 +2,7 @@
 # Generate configure & friends for GIT users.
 
 gnulib_url="git://git.sv.gnu.org/gnulib.git"
-gnulib_hash="9aca7b67333fd0a90bf56104325ce96199644451"
+gnulib_hash="34a93be8aa8a15f5959a1b671ad1285a5d552f4b"
 
 modules="
 	futimens
@@ -36,14 +36,26 @@ fi
 cd gnulib >/dev/null || exit 1
 curr_hash=$(git log -1 --format=%H)
 if [ "${gnulib_hash}" != "${curr_hash}" ]; then
+	echo "Pulling..."
 	git pull
-	git checkout -f ${gnulib_hash}
+	git checkout --force ${gnulib_hash}
 fi
 cd .. >/dev/null || exit 1
 
-rm -rf lib
-./gnulib/gnulib-tool \
-	--import \
-	${modules}
+echo "Autopoint..."
+autopoint --force
 
-autoreconf -f -i -s
+rm -rf lib
+echo "Gnulib-tool..."
+./gnulib/gnulib-tool --import ${modules}
+echo
+
+echo "Aclocal..."
+aclocal -I m4
+echo "Autoconf..."
+autoconf
+echo "Autoheader..."
+autoheader
+echo "Automake..."
+automake --add-missing
+echo "Done."

configure.ac

@@ -1,6 +1,6 @@
 # Configuration for GNU nano - a small and user-friendly text editor
 #
-# Copyright (C) 1999-2011, 2013-2021 Free Software Foundation, Inc.
+# Copyright (C) 1999-2011, 2013-2022 Free Software Foundation, Inc.
 # Copyright (C) 2014, 2017 Mike Frysinger
 #
 # GNU nano is free software: you can redistribute it and/or modify
@@ -16,10 +16,11 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see https://www.gnu.org/licenses/.
 
-AC_INIT([GNU nano], [5.9], [nano-devel@gnu.org], [nano])
+AC_INIT([GNU nano], [6.3], [nano-devel@gnu.org], [nano])
 AC_CONFIG_SRCDIR([src/nano.c])
 AC_CANONICAL_HOST
 AM_INIT_AUTOMAKE([1.14])
+AM_MAINTAINER_MODE([enable])
 AC_CONFIG_HEADERS([config.h])
 
 dnl Make sure the ONCE macros are available.
@@ -353,6 +354,9 @@ if test "x$enable_utf8" != xno; then
 	AC_CHECK_FUNCS(iswalpha iswalnum iswpunct mbstowcs wctomb)
 fi
 
+AC_CHECK_FUNCS_ONCE(chmod chown fchmod fchown flockfile funlockfile
+                    fork fsync geteuid pipe wait waitpid)
+
 dnl Checks for available flags.
 
 AX_CHECK_COMPILE_FLAG([-Wall], [CFLAGS="$CFLAGS -Wall"], [], [])
@@ -510,21 +514,6 @@ int main(void)
   *** Can't check need for _XOPEN_SOURCE_EXTENDED when cross-compiling.]))
 fi
 
-AC_MSG_CHECKING([whether LINES and COLS can be redefined])
-AC_RUN_IFELSE([AC_LANG_SOURCE([[
-#include <curses.h>
-int main(void)
-{
-	LINES = 80;
-	COLS = 25;
-	return 0;
-}]])],
-AC_DEFINE(REDEFINING_MACROS_OK, 1, [Define this if you know your curses library allows LINES and COLS to be redefined to deal with a resizing bug.])
-AC_MSG_RESULT(yes),
-AC_MSG_RESULT(no),
-AC_MSG_WARN([
-  *** Can't check for macro redefinability when cross-compiling.]))
-
 AS_IF([test "x$enable_libmagic" != "xno"], [
 	AC_CHECK_HEADERS([magic.h])
 	AC_CHECK_LIB(magic, magic_open)

doc/cheatsheet.html

@@ -2,9 +2,9 @@
 <html lang="en">
 
 <head>
-<title>Cheatsheet for nano</title>
+<title>Cheatsheet for GNU nano</title>
 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<meta name="description" content="A concise overview of the command shortcuts of the GNU nano editor, grouped by category.">
+<meta name="description" content="A concise overview of the command shortcuts for nano, the editor, grouped by category.">
 <meta name="keywords" content="cheatsheet, nano, editor, shortcuts, keystrokes, functions, operations, commands">
 <meta name="author" content="Benno Schulenberg">
 </head>
@@ -118,11 +118,11 @@
 <tr><td>Alt+A</td><td>Turn the mark on/off</td></tr>
 <tr><td>Tab</td><td>Indent marked region</td></tr>
 <tr><td>Shift+Tab &nbsp;&nbsp;</td><td>Unindent marked region</td></tr>
+<tr><td>Alt+V</td><td>Enter next keystroke verbatim</td></tr>
 <tr><td>Alt+N</td><td>Turn line numbers on/off</td></tr>
 <tr><td>Alt+P</td><td>Turn visible whitespace on/off</td></tr>
-<tr><td>Alt+V</td><td>Enter next keystroke verbatim</td></tr>
+<tr><td>Alt+X</td><td>Hide or unhide the help lines</td></tr>
 <tr><td>Ctrl+L</td><td>Refresh the screen</td></tr>
-<tr><td>Ctrl+Z</td><td>Suspend nano</td></tr>
 </tbody></table>
 <br>
 

doc/faq.html

@@ -92,7 +92,7 @@
 <h3><a name="1.3"></a>1.3. Why the name change from TIP?</h3>
 <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>
 <h3><a name="1.4"></a>1.4. What is the current version of nano?</h3>
-<blockquote><p>The current version of nano <i>should</i> be <b>5.9</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>6.3</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>
 <h3><a name="1.5"></a>1.5. I want to read the man page without having to download the program!</h3>
 <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%">

doc/nano.1

@@ -1,4 +1,4 @@
-.\" Copyright (C) 1999-2011, 2013-2021 Free Software Foundation, Inc.
+.\" Copyright (C) 1999-2011, 2013-2022 Free Software Foundation, Inc.
 .\"
 .\" This document is dual-licensed.  You may distribute and/or modify it
 .\" under the terms of either of the following licenses:
@@ -16,7 +16,7 @@
 .\"   Documentation License along with this program.  If not, see
 .\"   <https://www.gnu.org/licenses/>.
 .\"
-.TH NANO 1 "version 5.9" "October 2021"
+.TH NANO 1 "version 6.3" "April 2022"
 
 .SH NAME
 nano \- Nano's ANOther editor, inspired by Pico
@@ -140,10 +140,12 @@ text.  (The color of the stripe can be changed with \fBset stripecolor\fR
 in your \fInanorc\fR file.)
 .TP
 .BR \-K ", " \-\-rawsequences
-Interpret escape sequences directly (instead of asking \fBncurses\fR to
-translate them).  If you need this option to get your keyboard to work
-properly, please report a bug.  Using this option disables \fBnano\fR's
-mouse support.
+Interpret escape sequences directly, instead of asking \fBncurses\fR
+to translate them.  (If you need this option to get some keys to work
+properly, it means that the terminfo terminal description that is used
+does not fully match the actual behavior of your terminal.  This can
+happen when you ssh into a BSD machine, for example.)
+Using this option disables \fBnano\fR's mouse support.
 .TP
 .BR \-L ", " \-\-nonewlines
 Don't automatically add a newline when a text does not end with one.
@@ -192,8 +194,11 @@ Set the size (width) of a tab to \fInumber\fP columns.  The value of
 .TP
 .BR \-U ", " \-\-quickblank
 Make status-bar messages disappear after 1 keystroke instead of after 20.
-Note that options \fB\-c\fR (\fB\-\-constantshow\fR)
-and \fB\-_\fR (\fB\-\-minibar\fR) override this.
+Note that option \fB\-c\fR (\fB\-\-constantshow\fR) overrides this.
+When option \fB\-\-minibar\fR or \fB\-\-zero\fR is in effect,
+\fB\-\-quickblank\fR makes a message disappear after
+0.8 seconds instead of after the default 1.5 seconds.
+.
 .TP
 .BR \-V ", " \-\-version
 Show the current version number and exit.
@@ -328,7 +333,9 @@ Don't show the two help lines at the bottom of the screen.
 Make Ctrl+Right and Ctrl+Delete stop at word ends instead of beginnings.
 .TP
 .BR \-z ", " \-\-suspendable
-Allow the user to suspend the editor (with \fB^Z\fR by default).
+Obsolete option; ignored.  Suspension is enabled by default,
+reachable via \fB^T^Z\fR.  (If you want a plain \fB^Z\fR to
+suspend nano, add \fBbind ^Z suspend main\fR to your nanorc.)
 .TP
 .BR \-% ", " \-\-stateflags
 Use the top-right corner of the screen for showing some state flags:
@@ -352,9 +359,17 @@ the number of lines in the buffer is displayed after the filename.
 This number is cleared upon the next keystroke, or replaced with an
 [i/n] counter when multiple buffers are open.
 The line plus column numbers and the character code are displayed only when
-\fB\-\-constantshow\fR is used, and can be toggled on and off with \fBM-C\fR.
+\fB\-\-constantshow\fR is used, and can be toggled on and off with \fBM\-C\fR.
 The state flags are displayed only when \fB\-\-stateflags\fR is used.
 .TP
+.BR \-0 ", " \-\-zero
+Hide all elements of the interface (title bar, status bar, and help lines)
+and use all rows of the terminal for showing the contents of the buffer.
+The status bar appears only when there is a significant message,
+and disappears after 1.5 seconds or upon the next keystroke.
+With \fBM\-Z\fR the title bar plus status bar can be toggled.
+With \fBM\-X\fR the help lines.
+.TP
 .BR \-! ", " \-\-magic
 When neither the file's name nor its first line give a clue,
 try using libmagic to determine the applicable syntax.

doc/nanorc.5

@@ -1,4 +1,4 @@
-.\" Copyright (C) 2003-2011, 2013-2021 Free Software Foundation, Inc.
+.\" Copyright (C) 2003-2011, 2013-2022 Free Software Foundation, Inc.
 .\"
 .\" This document is dual-licensed.  You may distribute and/or modify it
 .\" under the terms of either of the following licenses:
@@ -16,7 +16,7 @@
 .\"   Documentation License along with this program.  If not, see
 .\"   <https://www.gnu.org/licenses/>.
 .\"
-.TH NANORC 5 "version 5.9" "October 2021"
+.TH NANORC 5 "version 6.3" "April 2022"
 
 .SH NAME
 nanorc \- GNU nano's configuration file
@@ -196,7 +196,7 @@ the number of lines in the buffer is displayed after the filename.
 This number is cleared upon the next keystroke, or replaced with an
 [i/n] counter when multiple buffers are open.
 The line plus column numbers and the character code are displayed only when
-\fBset constantshow\fR is used, and can be toggled on and off with \fBM-C\fR.
+\fBset constantshow\fR is used, and can be toggled on and off with \fBM\-C\fR.
 The state flags are displayed only when \fBset stateflags\fR is used.
 .TP
 .B set minicolor \fR[\fBbold,\fR][\fBitalic,\fR]\fIfgcolor\fB,\fIbgcolor\fR
@@ -258,7 +258,10 @@ specfified closing punctuation, optionally followed by closing brackets
 .TP
 .B set quickblank
 Make status-bar messages disappear after 1 keystroke instead of after 20.
-Note that options \fBconstantshow\fR and \fBminibar\fR override this.
+Note that option \fBconstantshow\fR overrides this.
+When option \fBminibar\fR or \fBzero\fR is in effect,
+\fBquickblank\fR makes a message disappear after
+0.8 seconds instead of after the default 1.5 seconds.
 .TP
 .BI "set quotestr """ regex """
 Set the regular expression for matching the quoting part of a line.
@@ -268,10 +271,12 @@ This makes it possible to rejustify blocks of quoted text when composing
 email, and to rewrap blocks of line comments when writing source code.
 .TP
 .B set rawsequences
-Interpret escape sequences directly (instead of asking \fBncurses\fR to
-translate them).  If you need this option to get your keyboard to work
-properly, please report a bug.  Using this option disables \fBnano\fR's
-mouse support.
+Interpret escape sequences directly, instead of asking \fBncurses\fR
+to translate them.  (If you need this option to get some keys to work
+properly, it means that the terminfo terminal description that is used
+does not fully match the actual behavior of your terminal.  This can
+happen when you ssh into a BSD machine, for example.)
+Using this option disables \fBnano\fR's mouse support.
 .TP
 .B set rebinddelete
 Interpret the Delete and Backspace keys differently so that both Backspace
@@ -339,7 +344,9 @@ Use this color combination for the vertical guiding stripe.
 See \fBset titlecolor\fR for more details.
 .TP
 .B set suspendable
-Allow \fBnano\fP to be suspended (with \fB^Z\fR by default).
+Obsolete option; ignored.  Suspension is enabled by default,
+reachable via \fB^T^Z\fR.  (If you want a plain \fB^Z\fR to
+suspend nano, add \fBbind ^Z suspend main\fR to your nanorc.)
 .TP
 .B set tabsize \fInumber\fR
 Use a tab size of \fInumber\fR columns.  The value of \fInumber\fP must be
@@ -361,8 +368,16 @@ as a synonym for \fBlightblack\fR.
 On terminal emulators that can do at least 256 colors,
 other valid (but unprefixable) color names are:
 .BR pink ", " purple ", " mauve ", " lagoon ", " mint ", "
-.BR lime ", " peach ", " orange ", " latte ", and " normal
+.BR lime ", " peach ", " orange ", " latte ", "
+.BR rosy ", " beet ", " plum ", " sea ", " sky ", " slate ", "
+.BR teal ", " sage ", " brown ", " ocher ", " sand ", " tawny ", "
+.BR brick ", " crimson ", and " normal
 -- where \fBnormal\fR means the default foreground or background color.
+On such emulators, the color may also be specified as a three-digit hexadecimal
+number prefixed with \fB#\fR, with the digits representing the amounts of red,
+green, and blue, respectively.  This tells \fBnano\fR to select from the
+available palette the color that approximates the given values.
+
 Either "\fIfgcolor\fR" or "\fB,\fIbgcolor\fR" may be left out,
 and the pair may be preceded by \fBbold\fR and/or \fBitalic\fR
 (separated by commas) to get a bold and/or slanting typeface,
@@ -394,6 +409,14 @@ probably want to unset \fBwordbounds\fR.
 .B set zap
 Let an unmodified Backspace or Delete erase the marked region
 (instead of a single character, and without affecting the cutbuffer).
+.TP
+.B set zero
+Hide all elements of the interface (title bar, status bar, and help lines)
+and use all rows of the terminal for showing the contents of the buffer.
+The status bar appears only when there is a significant message,
+and disappears after 1.5 seconds or upon the next keystroke.
+With \fBM\-Z\fR the title bar plus status bar can be toggled.
+With \fBM\-X\fR the help lines.
 
 .SH SYNTAX HIGHLIGHTING
 Coloring the different syntactic elements of a file
@@ -483,11 +506,21 @@ one of which must be specified.  Valid color names are:
 .BR white ", and " black .
 Each of these eight names may be prefixed with the word \fBlight\fR
 to get a brighter version of that color.
+The word \fBgrey\fR or \fBgray\fR may be used
+as a synonym for \fBlightblack\fR.
 On terminal emulators that can do at least 256 colors,
 other valid (but unprefixable) color names are:
 .BR pink ", " purple ", " mauve ", " lagoon ", " mint ", "
-.BR lime ", " peach ", " orange ", " latte ", and " normal
+.BR lime ", " peach ", " orange ", " latte ", "
+.BR rosy ", " beet ", " plum ", " sea ", " sky ", " slate ", "
+.BR teal ", " sage ", " brown ", " ocher ", " sand ", " tawny ", "
+.BR brick ", " crimson ", and " normal
 -- where \fBnormal\fR means the default foreground or background color.
+On such emulators, the color may also be specified as a three-digit hexadecimal
+number prefixed with \fB#\fR, with the digits representing the amounts of red,
+green, and blue, respectively.  This tells \fBnano\fR to select from the
+available palette the color that approximates the given values.
+
 The color pair may be preceded by \fBbold\fR and/or \fBitalic\fR
 (separated by commas) to get a bold and/or slanting typeface,
 if your terminal can do those.
@@ -662,7 +695,7 @@ and characters in the current buffer (or in the marked region).
 .TP
 .B execute
 Prompts for a program to execute.  The program's output will be inserted
-into the current buffer (or into a new buffer when \fBM-F\fR is toggled).
+into the current buffer (or into a new buffer when \fBM\-F\fR is toggled).
 .TP
 .B speller
 Invokes a spell-checking program, either the default \fBhunspell\fR(1) or GNU
@@ -819,8 +852,8 @@ Redoes the last undone action (i.e., it undoes an undo).
 Refreshes the screen.
 .TP
 .B suspend
-Suspends the editor (if the suspending function is enabled, see the
-\fBsuspendable\fR toggle item below).
+Suspends the editor and returns control to the shell
+(until you tell the process to resume execution with \fBfg\fR).
 .TP
 .B casesens
 Toggles whether searching/replacing ignores or respects the case of
@@ -898,6 +931,9 @@ Toggles the presence of the two-line list of key bindings at the bottom of the s
 (This toggle is special: it is available in all menus except the help viewer
 and the linter.  All further toggles are available in the main menu only.)
 .TP
+.B zero
+Toggles the presence of title bar and status bar.
+.TP
 .B constantshow
 Toggles the constant display of the current line, column, and character positions.
 .TP
@@ -934,11 +970,6 @@ Toggles whether typed tabs will be converted to spaces.
 .TP
 .B mouse
 Toggles mouse support.
-.TP
-.B suspendable
-Toggles whether the suspend keystroke (\fB^Z\fR by default)
-will actually suspend the editor.
-(The old name of this function, 'suspendenable', is deprecated.)
 .RE
 
 .TP

doc/rnano.1

@@ -1,4 +1,4 @@
-.\" Copyright (C) 2002-2007, 2014-2021 Free Software Foundation, Inc.
+.\" Copyright (C) 2002-2007, 2014-2022 Free Software Foundation, Inc.
 .\"
 .\" This document is dual-licensed.  You may distribute and/or modify it
 .\" under the terms of either of the following licenses:
@@ -16,7 +16,7 @@
 .\"   Documentation License along with this program.  If not, see
 .\"   <https://www.gnu.org/licenses/>.
 .\"
-.TH RNANO 1 "version 5.9" "October 2021"
+.TH RNANO 1 "version 6.3" "April 2022"
 
 .SH NAME
 rnano \- a restricted nano

doc/sample.nanorc.in

@@ -58,6 +58,10 @@
 ## will be the terminal's width minus this number.
 # set fill -8
 
+## Draw a vertical stripe at the given column, to help judge text width.
+## (This option does not have a default value.)
+# set guidestripe 75
+
 ## Remember the used search/replace strings for the next session.
 # set historylog
 
@@ -167,10 +171,6 @@
 ## M = mark, L = hard-wrapping long lines, R = recording, S = soft-wrapping.
 # set stateflags
 
-## Allow nano to be suspended (with ^Z by default).
-# set suspendable
-## (The old form of this option, 'set suspend', is deprecated.)
-
 ## Use this tab size instead of the default; it must be greater than 0.
 # set tabsize 8
 
@@ -180,6 +180,9 @@
 ## Snip whitespace at the end of lines when justifying or hard-wrapping.
 # set trimblanks
 
+## Save files by default in Unix format (also when they were DOS or Mac).
+# set unix
+
 ## The two single-column characters used to display the first characters
 ## of tabs and spaces.  187 in ISO 8859-1 (0000BB in Unicode) and 183 in
 ## ISO-8859-1 (0000B7 in Unicode) seem to be good values for these.
@@ -201,6 +204,9 @@
 ## of a single character, and without affecting the cutbuffer).
 # set zap
 
+## Hide the bars plus help lines and use the whole terminal as edit area.
+# set zero
+
 
 ## Paint the interface elements of nano.  These are examples; there are
 ## no colors by default, except for errorcolor and spotlightcolor.
@@ -256,6 +262,9 @@
 ## === Key bindings ===
 ## For all details, see 'man nanorc', section REBINDING KEYS.
 
+## If you want to suspend nano with one keystroke (instead of with ^T^Z):
+# bind ^Z suspend main
+
 ## The <Ctrl+Delete> keystroke deletes the word to the right of the cursor.
 ## On some terminals the <Ctrl+Backspace> keystroke produces ^H, which is
 ## the ASCII character for backspace, so it is bound by default to the
@@ -265,19 +274,37 @@
 ## <Ctrl+Backspace> delete the word to the left of the cursor with:
 # bind ^H chopwordleft main
 
+## For a more mnemonic Comment keystroke (overriding Cut-from-cursor):
+# bind M-K comment main
+
+## If you want ^L to just refresh the screen and not center the cursor:
+# bind ^L refresh main
+
+## When you sometimes type M-J instead of M-K, or M-T instead of M-R:
+# unbind M-J main
+# unbind M-T main
+## (Those functions are still accessible through ^T^J and ^T^V.)
+
 ## For quickly uppercasing or lowercasing the word under the cursor.
 ## (These effectively do a Ctrl+Right followed by a Shift+Ctrl+Left,
 ## and then pipe the selected text through a sed command.)
-#bind Sh-M-U "Oc|sed 's/.*/\U&/'
-" main
+# bind Sh-M-U "Oc|sed 's/.*/\U&/'
+" main
+# bind Sh-M-L "Oc|sed 's/.*/\L&/'
+" main
+
 ## For copying a marked region to the system clipboard:
 # bind Sh-M-T "|xsel -ib
 u" main
 
+## If you would like nano to have keybindings that are more "usual",
+## such as ^O for Open, ^F for Find, ^H for Help, and ^Q for Quit,
+## then uncomment these:
 #bind ^X cut main
 #bind ^C copy main
 #bind ^V paste all
 #bind ^Q exit all
+#bind ^S savefile main
 #bind ^W writeout main
 #bind ^O insert main
 #set multibuffer
@@ -285,24 +312,18 @@
 #bind ^H exit help
 #bind ^F whereis all
 #bind ^G findnext all
-#bind ^D findprevious all
-#bind ^R replace main
-#bind ^X cut main
-#bind ^C copy main
-#bind ^V paste all
-#bind ^P location main
+#bind ^B wherewas all
+#bind ^D findprevious all
 #bind ^R replace main
 #bind ^Z undo main
 #bind ^Y redo main
 #unbind ^K main
 #unbind ^U all
 #unbind ^N main
+#unbind ^Y all
+#unbind M-J main
 #unbind M-T main
 #bind ^A mark main
 #bind ^P location main
 #bind ^T gotoline main
-#bind ^T cutrestoffile execute
-#bind ^L linter execute
-#bind M-U undo main
-#bind M-R redo main
-#bind ^Z undo main
+#bind ^T gotodir browser

po/LINGUAS

@@ -1,2 +1,2 @@
 # List of available languages.
-bg ca cs da de eo es eu fi fr ga gl hr hu id is it ja ko ms nb nl pl pt pt_BR ro ru sk sl sr sv tr uk vi zh_CN zh_TW
+bg ca cs da de eo es eu fi fr ga gl hr hu id is it ja ko ms nb nl pl pt pt_BR ro ru sk sl sq sr sv tr uk vi zh_CN zh_TW

roll-a-release.sh

@@ -1,6 +1,6 @@
 #!/bin/bash
 
-VERSION="5.9"
+VERSION="6.3"
 
 ./configure -C --enable-tiny &&  make &&  ./configure -C &&
 

src/browser.c

@@ -1,7 +1,7 @@
 /**************************************************************************
  *   browser.c  --  This file is part of GNU nano.                        *
  *                                                                        *
- *   Copyright (C) 2001-2011, 2013-2021 Free Software Foundation, Inc.    *
+ *   Copyright (C) 2001-2011, 2013-2022 Free Software Foundation, Inc.    *
  *   Copyright (C) 2015-2016, 2020 Benno Schulenberg                      *
  *                                                                        *
  *   GNU nano is free software: you can redistribute it and/or modify     *
@@ -32,45 +32,45 @@ static char **filelist = NULL;
 		/* The list of files to display in the file browser. */
 static size_t list_length = 0;
 		/* The number of files in the list. */
-static size_t width = 0;
+static size_t usable_rows = 0;
+		/* The number of screen rows we can use to display the list. */
+static int piles = 0;
 		/* The number of files that we can display per screen row. */
-static size_t longest = 0;
-		/* The number of columns in the longest filename in the list. */
+static int gauge = 0;
+		/* The width of a 'pile' -- the widest filename plus ten. */
 static size_t selected = 0;
 		/* The currently selected filename in the list; zero-based. */
 
-/* Set filelist to the list of files contained in the directory path,
- * set list_length to the number of files in that list, set longest to
- * the width in columns of the longest filename in that list (between 15
- * and COLS), and set width to the number of files that we can display
- * per screen row.  And sort the list too. */
+/* Fill 'filelist' with the names of the files in the given directory, set
+ * 'list_length' to the number of names in that list, set 'gauge' to the
+ * width of the widest filename plus ten, and set 'piles' to the number of
+ * files that can be displayed per screen row.  And sort the list too. */
 void read_the_list(const char *path, DIR *dir)
 {
-	size_t path_len = strlen(path), index = 0;
-	const struct dirent *nextdir;
+	size_t path_len = strlen(path);
+	const struct dirent *entry;
+	size_t widest = 0;
+	size_t index = 0;
 
-	longest = 0;
+	/* Find the width of the widest filename in the current folder. */
+	while ((entry = readdir(dir)) != NULL) {
+		size_t span = breadth(entry->d_name);
 
-	/* Find the length of the longest filename in the current folder. */
-	while ((nextdir = readdir(dir)) != NULL) {
-		size_t name_len = breadth(nextdir->d_name);
-
-		if (name_len > longest)
-			longest = name_len;
+		if (span > widest)
+			widest = span;
 
 		index++;
 	}
 
-	/* Put 10 characters' worth of blank space between columns of filenames
-	 * in the list whenever possible, as Pico does. */
-	longest += 10;
+	/* Reserve ten columns for blanks plus file size. */
+	gauge = widest + 10;
 
 	/* If needed, make room for ".. (parent dir)". */
-	if (longest < 15)
-		longest = 15;
+	if (gauge < 15)
+		gauge = 15;
 	/* Make sure we're not wider than the window. */
-	if (longest > COLS)
-		longest = COLS;
+	if (gauge > COLS)
+		gauge = COLS;
 
 	rewinddir(dir);
 
@@ -81,20 +81,19 @@ void read_the_list(const char *path, DIR *dir)
 
 	filelist = nmalloc(list_length * sizeof(char *));
 
-	while ((nextdir = readdir(dir)) != NULL && index < list_length) {
-		/* Don't show the "." entry. */
-		if (strcmp(nextdir->d_name, ".") == 0)
+	while ((entry = readdir(dir)) != NULL && index < list_length) {
+		/* Don't show the useless dot item. */
+		if (strcmp(entry->d_name, ".") == 0)
 			continue;
 
-		filelist[index] = nmalloc(path_len + strlen(nextdir->d_name) + 1);
-		sprintf(filelist[index], "%s%s", path, nextdir->d_name);
+		filelist[index] = nmalloc(path_len + strlen(entry->d_name) + 1);
+		sprintf(filelist[index], "%s%s", path, entry->d_name);
 
 		index++;
 	}
 
-	/* Maybe the number of files in the directory decreased between the
-	 * first time we scanned and the second time.  index is the actual
-	 * length of the file list, so record it. */
+	/* Maybe the number of files in the directory decreased between
+	 * the first time we scanned and the second time. */
 	list_length = index;
 
 	/* Sort the list of names. */
@@ -103,31 +102,28 @@ void read_the_list(const char *path, DIR *dir)
 	/* Calculate how many files fit on a line -- feigning room for two
 	 * spaces beyond the right edge, and adding two spaces of padding
 	 * between columns. */
-	width = (COLS + 2) / (longest + 2);
+	piles = (COLS + 2) / (gauge + 2);
+
+	usable_rows = editwinrows - (ISSET(ZERO) && LINES > 1 ? 1 : 0);
 }
 
-/* Look for needle.  If we find it, set selected to its location.
- * Note that needle must be an exact match for a file in the list. */
-void browser_select_dirname(const char *needle)
+/* Reselect the given file or directory name, if it still exists. */
+void reselect(const char *name)
 {
 	size_t looking_at = 0;
 
-	for (; looking_at < list_length; looking_at++) {
-		if (strcmp(filelist[looking_at], needle) == 0) {
-			selected = looking_at;
-			break;
-		}
-	}
+	while (looking_at < list_length && strcmp(filelist[looking_at], name) != 0)
+		looking_at++;
 
-	/* If the sought name isn't found, move the highlight so that the
-	 * changed selection will be noticed. */
-	if (looking_at == list_length) {
+	/* If the sought name was found, select it; otherwise, just move
+	 * the highlight so that the changed selection will be noticed,
+	 * but make sure to stay within the current available range. */
+	if (looking_at < list_length)
+		selected = looking_at;
+	else if (selected > list_length)
+		selected = list_length - 1;
+	else
 		--selected;
-
-		/* Make sure we stay within the available range. */
-		if (selected >= list_length)
-			selected = list_length - 1;
-	}
 }
 
 /* Display at most a screenful of filenames from the gleaned filelist. */
@@ -143,8 +139,8 @@ void browser_refresh(void)
 	titlebar(present_path);
 	blank_edit();
 
-	for (size_t index = selected - selected % (editwinrows * width);
-					index < list_length && row < editwinrows; index++) {
+	for (size_t index = selected - selected % (usable_rows * piles);
+					index < list_length && row < usable_rows; index++) {
 		const char *thename = tail(filelist[index]);
 				/* The filename we display, minus the path. */
 		size_t namelen = breadth(thename);
@@ -154,11 +150,11 @@ void browser_refresh(void)
 		size_t infomaxlen = 7;
 				/* The maximum length of the file information in columns:
 				 * normally seven, but will be twelve for "(parent dir)". */
-		bool dots = (COLS >= 15 && namelen >= longest - infomaxlen);
+		bool dots = (COLS >= 15 && namelen >= gauge - infomaxlen);
 				/* Whether to put an ellipsis before the filename?  We don't
 				 * waste space on dots when there are fewer than 15 columns. */
 		char *disp = display_string(thename, dots ?
-				namelen + infomaxlen + 4 - longest : 0, longest, FALSE, FALSE);
+				namelen + infomaxlen + 4 - gauge : 0, gauge, FALSE, FALSE);
 				/* The filename (or a fragment of it) in displayable format.
 				 * When a fragment, account for dots plus one space padding. */
 		struct stat state;
@@ -166,18 +162,18 @@ void browser_refresh(void)
 		/* If this is the selected item, draw its highlighted bar upfront, and
 		 * remember its location to be able to place the cursor on it. */
 		if (index == selected) {
-			wattron(edit, interface_color_pair[SELECTED_TEXT]);
-			mvwprintw(edit, row, col, "%*s", longest, " ");
+			wattron(midwin, interface_color_pair[SELECTED_TEXT]);
+			mvwprintw(midwin, row, col, "%*s", gauge, " ");
 			the_row = row;
 			the_column = col;
 		}
 
 		/* If the name is too long, we display something like "...ename". */
 		if (dots)
-			mvwaddstr(edit, row, col, "...");
-		mvwaddstr(edit, row, dots ? col + 3 : col, disp);
+			mvwaddstr(midwin, row, col, "...");
+		mvwaddstr(midwin, row, dots ? col + 3 : col, disp);
 
-		col += longest;
+		col += gauge;
 
 		/* Show information about the file: "--" for symlinks (except when
 		 * they point to a directory) and for files that have disappeared,
@@ -231,11 +227,11 @@ void browser_refresh(void)
 			infolen = infomaxlen;
 		}
 
-		mvwaddstr(edit, row, col - infolen, info);
+		mvwaddstr(midwin, row, col - infolen, info);
 
 		/* If this is the selected item, finish its highlighting. */
 		if (index == selected)
-			wattroff(edit, interface_color_pair[SELECTED_TEXT]);
+			wattroff(midwin, interface_color_pair[SELECTED_TEXT]);
 
 		free(disp);
 		free(info);
@@ -243,8 +239,8 @@ void browser_refresh(void)
 		/* Add some space between the columns. */
 		col += 2;
 
-		/* If the next entry will not fit on this row, move to next row. */
-		if (col > COLS - longest) {
+		/* If the next item will not fit on this row, move to next row. */
+		if (col > COLS - gauge) {
 			row++;
 			col = 0;
 		}
@@ -252,11 +248,11 @@ void browser_refresh(void)
 
 	/* If requested, put the cursor on the selected item and switch it on. */
 	if (ISSET(SHOW_CURSOR)) {
-		wmove(edit, the_row, the_column);
+		wmove(midwin, the_row, the_column);
 		curs_set(1);
 	}
 
-	wnoutrefresh(edit);
+	wnoutrefresh(midwin);
 }
 
 /* Look for the given needle in the list of files.  If forwards is TRUE,
@@ -355,7 +351,7 @@ void search_filename(bool forwards)
 	if (*answer != '\0') {
 		last_search = mallocstrcpy(last_search, answer);
 #ifdef ENABLE_HISTORIES
-		update_history(&search_history, answer);
+		update_history(&search_history, answer, PRUNE_DUPLICATE);
 #endif
 	}
 
@@ -430,7 +426,7 @@ char *browse(char *path)
 
 	if (path == NULL || dir == NULL) {
 		statusline(ALERT, _("Cannot open directory: %s"), strerror(errno));
-		/* If we don't have a file list yet, there is nothing to show. */
+		/* If we don't have a file list, there is nothing to show. */
 		if (filelist == NULL) {
 			lastmessage = VACUUM;
 			free(present_name);
@@ -443,19 +439,18 @@ char *browse(char *path)
 	}
 
 	if (dir != NULL) {
-		/* Get the file list, and set longest and width in the process. */
+		/* Get the file list, and set gauge and piles in the process. */
 		read_the_list(path, dir);
 		closedir(dir);
 		dir = NULL;
 	}
 
-	/* If given, reselect the present_name and then discard it. */
+	/* If something was selected before, reselect it;
+	 * otherwise, just select the first item (..). */
 	if (present_name != NULL) {
-		browser_select_dirname(present_name);
-
+		reselect(present_name);
 		free(present_name);
 		present_name = NULL;
-	/* Otherwise, select the first file or directory in the list. */
 	} else
 		selected = 0;
 
@@ -480,31 +475,27 @@ char *browse(char *path)
 
 		old_selected = selected;
 
-		kbinput = get_kbinput(edit, ISSET(SHOW_CURSOR));
+		kbinput = get_kbinput(midwin, ISSET(SHOW_CURSOR));
 
 #ifdef ENABLE_MOUSE
 		if (kbinput == KEY_MOUSE) {
 			int mouse_x, mouse_y;
 
-			/* We can click on the edit window to select a filename. */
+			/* When the user clicked in the file list, select a filename. */
 			if (get_mouseinput(&mouse_y, &mouse_x, TRUE) == 0 &&
-						wmouse_trafo(edit, &mouse_y, &mouse_x, FALSE)) {
-				/* longest is the width of each column.  There
-				 * are two spaces between each column. */
-				selected = selected - selected % (editwinrows * width) +
-								(mouse_y * width) + (mouse_x / (longest + 2));
+						wmouse_trafo(midwin, &mouse_y, &mouse_x, FALSE)) {
+				selected = selected - selected % (usable_rows * piles) +
+								(mouse_y * piles) + (mouse_x / (gauge + 2));
 
-				/* If they clicked beyond the end of a row,
-				 * select the last filename in that row. */
-				if (mouse_x > width * (longest + 2))
+				/* When beyond end-of-row, select the preceding filename. */
+				if (mouse_x > piles * (gauge + 2))
 					selected--;
 
-				/* If we're beyond the list, select the last filename. */
+				/* When beyond end-of-list, select the last filename. */
 				if (selected > list_length - 1)
 					selected = list_length - 1;
 
-				/* If we selected the same filename as last time, fake a
-				 * press of the Enter key so that the file is read in. */
+				/* When a filename is clicked a second time, choose it. */
 				if (old_selected == selected)
 					kbinput = KEY_ENTER;
 			}
@@ -524,17 +515,15 @@ char *browse(char *path)
 		if (func == full_refresh) {
 			full_refresh();
 #ifndef NANO_TINY
-			/* Simulate a window resize to force a directory reread. */
+			/* Simulate a terminal resize to force a directory reread. */
 			kbinput = KEY_WINCH;
 #endif
 		} else if (func == do_help) {
 			do_help();
 #ifndef NANO_TINY
-			/* The window dimensions might have changed, so act as if. */
+			/* The terminal dimensions might have changed, so act as if. */
 			kbinput = KEY_WINCH;
-#endif
-#ifndef NANO_TINY
-		} else if (func == do_toggle_void) {
+		} else if (func == do_toggle) {
 			TOGGLE(NO_HELP);
 			window_init();
 			kbinput = KEY_WINCH;
@@ -554,43 +543,42 @@ char *browse(char *path)
 			if (selected < list_length - 1)
 				selected++;
 		} else if (func == to_prev_word) {
-			selected -= (selected % width);
+			selected -= (selected % piles);
 		} else if (func == to_next_word) {
-			selected += width - 1 - (selected % width);
+			selected += piles - 1 - (selected % piles);
 			if (selected >= list_length)
 				selected = list_length - 1;
 		} else if (func == do_up) {
-			if (selected >= width)
-				selected -= width;
+			if (selected >= piles)
+				selected -= piles;
 		} else if (func == do_down) {
-			if (selected + width <= list_length - 1)
-				selected += width;
+			if (selected + piles <= list_length - 1)
+				selected += piles;
 		} else if (func == to_prev_block) {
-			selected = ((selected / (editwinrows * width)) *
-								editwinrows * width) + selected % width;
+			selected = ((selected / (usable_rows * piles)) * usable_rows * piles) +
+								 selected % piles;
 		} else if (func == to_next_block) {
-			selected = ((selected / (editwinrows * width)) *
-								editwinrows * width) + selected % width +
-								editwinrows * width - width;
+			selected = ((selected / (usable_rows * piles)) * usable_rows * piles) +
+								selected % piles + usable_rows * piles - piles;
 			if (selected >= list_length)
-				selected = (list_length / width) * width + selected % width;
+				selected = (list_length / piles) * piles + selected % piles;
 			if (selected >= list_length)
-				selected -= width;
+				selected -= piles;
 		} else if (func == do_page_up) {
-			if (selected < width)
+			if (selected < piles)
 				selected = 0;
-			else if (selected < editwinrows * width)
-				selected = selected % width;
+			else if (selected < usable_rows * piles)
+				selected = selected % piles;
 			else
-				selected -= editwinrows * width;
+				selected -= usable_rows * piles;
 		} else if (func == do_page_down) {
-			if (selected + width >= list_length - 1)
+			if (selected + piles >= list_length - 1)
 				selected = list_length - 1;
-			else if (selected + editwinrows * width >= list_length)
-				selected = (selected + editwinrows * width - list_length) %
-								width + list_length - width;
+			else if (selected + usable_rows * piles >= list_length)
+				selected = (selected + usable_rows * piles - list_length) % piles +
+								list_length - piles;
 			else
-				selected += editwinrows * width;
+				selected += usable_rows * piles;
 		} else if (func == to_first_file) {
 			selected = 0;
 		} else if (func == to_last_file) {
@@ -615,8 +603,8 @@ char *browse(char *path)
 
 #ifdef ENABLE_OPERATINGDIR
 			if (outside_of_confinement(path, FALSE)) {
-				/* TRANSLATORS: This refers to the confining effect of the
-				 * option --operatingdir, not of --restricted. */
+				/* TRANSLATORS: This refers to the confining effect of
+				 * the option --operatingdir, not of --restricted. */
 				statusline(ALERT, _("Can't go outside of %s"), operating_dir);
 				path = mallocstrcpy(path, present_path);
 				continue;
@@ -679,7 +667,7 @@ char *browse(char *path)
 #endif
 #ifndef NANO_TINY
 		} else if (kbinput == KEY_WINCH) {
-			;  /* Nothing to do. */
+			;  /* Gets handled below. */
 #endif
 		} else if (func == do_exit) {
 			break;
@@ -687,11 +675,10 @@ char *browse(char *path)
 			unbound_key(kbinput);
 
 #ifndef NANO_TINY
-		/* If the window resized, refresh the file list. */
+		/* If the terminal resized (or might have), refresh the file list. */
 		if (kbinput == KEY_WINCH) {
 			/* Remember the selected file, to be able to reselect it. */
 			present_name = copy_of(filelist[selected]);
-			/* Reread the contents of the current directory. */
 			goto read_directory_contents;
 		}
 #endif
@@ -722,14 +709,10 @@ char *browse_in(const char *inpath)
 		path = free_and_assign(path, strip_last_component(path));
 
 		if (stat(path, &fileinfo) == -1 || !S_ISDIR(fileinfo.st_mode)) {
-			char *currentdir = nmalloc(PATH_MAX + 1);
-
-			path = free_and_assign(path, getcwd(currentdir, PATH_MAX + 1));
+			path = free_and_assign(path, realpath(".", NULL));
 
 			if (path == NULL) {
-				statusline(MILD, _("The working directory has disappeared"));
-				free(currentdir);
-				beep();
+				statusline(ALERT, _("The working directory has disappeared"));
 				napms(1200);
 				return NULL;
 			}

src/chars.c

@@ -1,7 +1,7 @@
 /**************************************************************************
  *   chars.c  --  This file is part of GNU nano.                          *
  *                                                                        *
- *   Copyright (C) 2001-2011, 2013-2021 Free Software Foundation, Inc.    *
+ *   Copyright (C) 2001-2011, 2013-2022 Free Software Foundation, Inc.    *
  *   Copyright (C) 2016-2021 Benno Schulenberg                            *
  *                                                                        *
  *   GNU nano is free software: you can redistribute it and/or modify     *

src/color.c

@@ -1,7 +1,7 @@
 /**************************************************************************
  *   color.c  --  This file is part of GNU nano.                          *
  *                                                                        *
- *   Copyright (C) 2001-2011, 2013-2021 Free Software Foundation, Inc.    *
+ *   Copyright (C) 2001-2011, 2013-2022 Free Software Foundation, Inc.    *
  *   Copyright (C) 2014-2017, 2020, 2021 Benno Schulenberg                *
  *                                                                        *
  *   GNU nano is free software: you can redistribute it and/or modify     *
@@ -53,6 +53,7 @@ void set_interface_colorpairs(void)
 			}
 			init_pair(index + 1, combo->fg, combo->bg);
 			interface_color_pair[index] = COLOR_PAIR(index + 1) | combo->attributes;
+			rescind_colors = FALSE;
 		} else {
 			if (index == FUNCTION_TAG || index == SCROLL_BAR)
 				interface_color_pair[index] = A_NORMAL;
@@ -72,6 +73,11 @@ void set_interface_colorpairs(void)
 
 		free(color_combo[index]);
 	}
+
+	if (rescind_colors) {
+		interface_color_pair[SPOTLIGHTED] = A_REVERSE;
+		interface_color_pair[ERROR_MESSAGE] = A_REVERSE;
+	}
 }
 
 /* Assign a pair number to each of the foreground/background color combinations
@@ -255,12 +261,14 @@ void check_the_multis(linestruct *line)
 		if (line->multidata[ink->id] == NOTHING) {
 			if (!astart)
 				continue;
-		} else if (line->multidata[ink->id] & (WHOLELINE|WOULDBE)) {
-			if (!astart && !anend)
+		} else if (line->multidata[ink->id] == WHOLELINE) {
+			/* Ensure that a detected start match is not actually an end match. */
+			if (!anend && (!astart || regexec(ink->end, line->data, 1,
+												&endmatch, 0) != 0))
 				continue;
 		} else if (line->multidata[ink->id] == JUSTONTHIS) {
-			if (astart && anend && regexec(ink->start, line->data + endmatch.rm_eo,
-														1, &startmatch, 0) != 0)
+			if (astart && anend && regexec(ink->start, line->data + startmatch.rm_eo +
+											endmatch.rm_eo, 1, &startmatch, 0) != 0)
 				continue;
 		} else if (line->multidata[ink->id] == STARTSHERE) {
 			if (astart && !anend)
@@ -272,6 +280,7 @@ void check_the_multis(linestruct *line)
 
 		/* There is a mismatch, so something changed: repaint. */
 		refresh_needed = TRUE;
+		perturbed = TRUE;
 		return;
 	}
 }
@@ -342,21 +351,17 @@ void precalc_multicolorinfo(void)
 											1, &endmatch, 0) != 0)
 					tailline = tailline->next;
 
-				/* When there is no end match, mark relevant lines as such. */
-				if (tailline == NULL) {
-					for (; line->next != NULL; line = line->next)
-						line->multidata[ink->id] = WOULDBE;
-					line->multidata[ink->id] = WOULDBE;
-					break;
-				}
-
-				/* We found it, we found it, la lala lala.  Mark the lines. */
 				line->multidata[ink->id] = STARTSHERE;
 
 				// Note that this also advances the line in the main loop.
 				for (line = line->next; line != tailline; line = line->next)
 					line->multidata[ink->id] = WHOLELINE;
 
+				if (tailline == NULL) {
+					line = openfile->filebot;
+					break;
+				}
+
 				tailline->multidata[ink->id] = ENDSHERE;
 
 				/* Look for a possible new start after the end match. */

src/cut.c

@@ -1,7 +1,7 @@
 /**************************************************************************
  *   cut.c  --  This file is part of GNU nano.                            *
  *                                                                        *
- *   Copyright (C) 1999-2011, 2013-2021 Free Software Foundation, Inc.    *
+ *   Copyright (C) 1999-2011, 2013-2022 Free Software Foundation, Inc.    *
  *   Copyright (C) 2014 Mark Majeres                                      *
  *   Copyright (C) 2016, 2018-2020 Benno Schulenberg                      *
  *                                                                        *
@@ -185,7 +185,7 @@ void chop_word(bool forward)
 	 * on the edge of the original line, then put the cursor on that
 	 * edge instead, so that lines will not be joined unexpectedly. */
 	if (!forward) {
-		do_prev_word(ISSET(WORD_BOUNDS));
+		do_prev_word();
 		if (openfile->current != is_current) {
 			if (is_current_x > 0) {
 				openfile->current = is_current;
@@ -194,7 +194,7 @@ void chop_word(bool forward)
 				openfile->current_x = strlen(openfile->current->data);
 		}
 	} else {
-		do_next_word(ISSET(AFTER_ENDS), ISSET(WORD_BOUNDS));
+		do_next_word(ISSET(AFTER_ENDS));
 		if (openfile->current != is_current &&
 							is_current->data[is_current_x] != '\0') {
 			openfile->current = is_current;
@@ -435,9 +435,19 @@ void ingraft_buffer(linestruct *topline)
 /* Meld a copy of the given buffer into the current file buffer. */
 void copy_from_buffer(linestruct *somebuffer)
 {
+#ifdef ENABLE_COLOR
+	size_t threshold = openfile->edittop->lineno + editwinrows - 1;
+#endif
 	linestruct *the_copy = copy_buffer(somebuffer);
 
 	ingraft_buffer(the_copy);
+
+#ifdef ENABLE_COLOR
+	if (openfile->current->lineno > threshold || ISSET(SOFTWRAP))
+		recook = TRUE;
+	else
+		perturbed = TRUE;
+#endif
 }
 
 #ifndef NANO_TINY
@@ -485,7 +495,7 @@ void do_snip(bool marked, bool until_eof, bool append)
 		/* When not at the end of a line, move the rest of this line into
 		 * the cutbuffer.  Otherwise, when not at the end of the buffer,
 		 * move just the "line separator" into the cutbuffer. */
-		if (openfile->current_x < strlen(openfile->current->data))
+		if (line->data[openfile->current_x] != '\0')
 			extract_segment(line, openfile->current_x, line, strlen(line->data));
 		else if (openfile->current != openfile->filebot) {
 			extract_segment(line, openfile->current_x, line->next, 0);
@@ -509,6 +519,9 @@ void do_snip(bool marked, bool until_eof, bool append)
 
 	set_modified();
 	refresh_needed = TRUE;
+#ifdef ENABLE_COLOR
+	perturbed = TRUE;
+#endif
 }
 
 /* Move text from the current buffer into the cutbuffer. */
@@ -694,9 +707,11 @@ void copy_text(void)
 /* Copy text from the cutbuffer into the current buffer. */
 void paste_text(void)
 {
-#ifndef NANO_TINY
+#if defined(ENABLE_WRAPPING) || !defined(NANO_TINY)
 	/* Remember where the paste started. */
 	linestruct *was_current = openfile->current;
+#endif
+#ifndef NANO_TINY
 	bool had_anchor = was_current->has_anchor;
 #endif
 	ssize_t was_lineno = openfile->current->lineno;
@@ -728,6 +743,12 @@ void paste_text(void)
 	update_undo(PASTE);
 #endif
 
+#ifdef ENABLE_WRAPPING
+	/* When still on the same line and doing hard-wrapping, limit the width. */
+	if (openfile->current == was_current && ISSET(BREAK_LONG_LINES))
+		do_wrap();
+#endif
+
 	/* If we pasted less than a screenful, don't center the cursor. */
 	if (less_than_a_screenful(was_lineno, was_leftedge))
 		focusing = FALSE;

src/definitions.h

@@ -1,7 +1,7 @@
 /**************************************************************************
  *   definitions.h  --  This file is part of GNU nano.                    *
  *                                                                        *
- *   Copyright (C) 1999-2011, 2013-2021 Free Software Foundation, Inc.    *
+ *   Copyright (C) 1999-2011, 2013-2022 Free Software Foundation, Inc.    *
  *   Copyright (C) 2014-2017 Benno Schulenberg                            *
  *                                                                        *
  *   GNU nano is free software: you can redistribute it and/or modify     *
@@ -108,6 +108,14 @@
 #define BACKWARD  FALSE
 #define FORWARD  TRUE
 
+#define YESORNO  FALSE
+#define YESORALLORNO  TRUE
+
+#define YES      1
+#define ALL      2
+#define NO       0
+#define CANCEL  -1
+
 #define BLIND  FALSE
 #define VISIBLE  TRUE
 
@@ -122,6 +130,9 @@
 #define ANNOTATE  TRUE
 #define NONOTES  FALSE
 
+#define PRUNE_DUPLICATE  TRUE
+#define IGNORE_DUPLICATES  FALSE
+
 #ifdef ENABLE_UTF8
 /* In UTF-8 a valid character is at most four bytes long. */
 #define MAXCHARLEN  4
@@ -159,8 +170,6 @@
 		/* The start regex matches on an earlier line, the end regex on this one. */
 #define JUSTONTHIS   (1<<5)
 		/* Both the start and end regexes match within this line. */
-#define WOULDBE      (1<<6)
-		/* An unpaired start match is on or before this line. */
 #endif
 
 /* Basic control codes. */
@@ -215,7 +224,7 @@
 #define FOREIGN_SEQUENCE  0x4FC
 
 /* A special keycode for plugging into the input stream after a suspension. */
-#define KEY_FLUSH  KEY_F0
+#define KEY_FRESH  0x4FE
 
 #ifndef NANO_TINY
 /* A special keycode for when we get a SIGWINCH (a window resize). */
@@ -354,7 +363,8 @@ enum {
 	BOOKSTYLE,
 	STATEFLAGS,
 	USE_MAGIC,
-	MINIBAR
+	MINIBAR,
+	ZERO
 };
 
 /* Structure types. */

src/files.c

@@ -1,7 +1,7 @@
 /**************************************************************************
  *   files.c  --  This file is part of GNU nano.                          *
  *                                                                        *
- *   Copyright (C) 1999-2011, 2013-2021 Free Software Foundation, Inc.    *
+ *   Copyright (C) 1999-2011, 2013-2022 Free Software Foundation, Inc.    *
  *   Copyright (C) 2015-2021 Benno Schulenberg                            *
  *                                                                        *
  *   GNU nano is free software: you can redistribute it and/or modify     *
@@ -33,6 +33,10 @@
 
 #define RW_FOR_ALL  (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH)
 
+#ifndef HAVE_FSYNC
+# define fsync(...)  0
+#endif
+
 /* Add an item to the circular list of openfile structs. */
 void make_new_buffer(void)
 {
@@ -143,7 +147,7 @@ const char *locking_suffix = ".swp";
  * existing version of that file.  Return TRUE on success; FALSE otherwise. */
 bool write_lockfile(const char *lockfilename, const char *filename, bool modified)
 {
-#ifdef HAVE_PWD_H
+#if defined(HAVE_PWD_H) && defined(HAVE_GETEUID)
 	pid_t mypid = getpid();
 	uid_t myuid = geteuid();
 	struct passwd *mypwuid = getpwuid(myuid);
@@ -303,14 +307,14 @@ char *do_lockfile(const char *filename, bool ask_the_user)
 		free(postedname);
 		free(pidstring);
 
-		choice = do_yesno_prompt(FALSE, promptstr);
+		choice = ask_user(YESORNO, promptstr);
 		free(promptstr);
 
 		/* When the user cancelled while we're still starting up, quit. */
-		if (choice < 0 && !we_are_running)
+		if (choice == CANCEL && !we_are_running)
 			finish();
 
-		if (choice < 1) {
+		if (choice != YES) {
 			free(lockfilename);
 			wipe_statusbar();
 			return SKIPTHISFILE;
@@ -346,8 +350,18 @@ bool has_valid_path(const char *filename)
 	char *parentdir = dirname(namecopy);
 	struct stat parentinfo;
 	bool validity = FALSE;
+	bool gone = FALSE;
 
-	if (stat(parentdir, &parentinfo) == -1) {
+	if (strcmp(parentdir, ".") == 0) {
+		char *currentdir = realpath(".", NULL);
+
+		gone = (currentdir == NULL && errno == ENOENT);
+		free(currentdir);
+	}
+
+	if (gone)
+		statusline(ALERT, _("The working directory has disappeared"));
+	else if (stat(parentdir, &parentinfo) == -1) {
 		if (errno == ENOENT)
 			/* TRANSLATORS: Keep the next ten messages at most 76 characters. */
 			statusline(ALERT, _("Directory '%s' does not exist"), parentdir);
@@ -411,7 +425,7 @@ bool open_buffer(const char *filename, bool new_one)
 			free(realname);
 			return FALSE;
 		}
-#else
+#elif defined(HAVE_GETEUID)
 		if (new_one && !(fileinfo.st_mode & (S_IWUSR|S_IWGRP|S_IWOTH)) &&
 						geteuid() == ROOT_UID)
 			statusline(ALERT, _("%s is meant to be read-only"), realname);
@@ -675,9 +689,13 @@ void read_file(FILE *f, int fd, const char *filename, bool undoable)
 	block_sigwinch(TRUE);
 #endif
 
+#ifdef HAVE_FLOCKFILE
 	/* Lock the file before starting to read it, to avoid the overhead
 	 * of locking it for each single byte that we read from it. */
 	flockfile(f);
+#else
+# define getc_unlocked  getc
+#endif
 
 	control_C_was_pressed = FALSE;
 
@@ -741,8 +759,10 @@ void read_file(FILE *f, int fd, const char *filename, bool undoable)
 
 	errornumber = errno;
 
+#ifdef HAVE_FUNLOCKFILE
 	/* We are done with the file, unlock it. */
 	funlockfile(f);
+#endif
 
 #ifndef NANO_TINY
 	block_sigwinch(FALSE);
@@ -811,25 +831,29 @@ void read_file(FILE *f, int fd, const char *filename, bool undoable)
 #ifndef NANO_TINY
 	else if (format == MAC_FILE)
 		/* TRANSLATORS: Keep the next three messages at most 78 characters. */
-		statusline(HUSH, P_("Read %zu line (Converted from Mac format)",
+		statusline(REMARK, P_("Read %zu line (Converted from Mac format)",
 						"Read %zu lines (Converted from Mac format)",
 						num_lines), num_lines);
 	else if (format == DOS_FILE)
-		statusline(HUSH, P_("Read %zu line (Converted from DOS format)",
+		statusline(REMARK, P_("Read %zu line (Converted from DOS format)",
 						"Read %zu lines (Converted from DOS format)",
 						num_lines), num_lines);
 #endif
-	else
-		statusline(HUSH, P_("Read %zu line", "Read %zu lines",
+	else if ((!ISSET(MINIBAR) && !ISSET(ZERO)) || (we_are_running && undoable))
+		statusline(REMARK, P_("Read %zu line", "Read %zu lines",
 						num_lines), num_lines);
 
+	report_size = TRUE;
+
 	/* If we inserted less than a screenful, don't center the cursor. */
-	if (undoable && less_than_a_screenful(was_lineno, was_leftedge))
+	if (undoable && less_than_a_screenful(was_lineno, was_leftedge)) {
 		focusing = FALSE;
 #ifdef ENABLE_COLOR
-	else if (undoable)
-		precalc_multicolorinfo();
+		perturbed = TRUE;
+	} else if (undoable) {
+		recook = TRUE;
 #endif
+	}
 
 #ifndef NANO_TINY
 	if (undoable)
@@ -898,7 +922,7 @@ int open_file(const char *filename, bool new_one, FILE **f)
 			statusline(ALERT, _("Error reading %s: %s"), filename, strerror(errno));
 			close(fd);
 			fd = -1;
-		} else
+		} else if (!ISSET(ZERO) || we_are_running)
 			statusbar(_("Reading..."));
 	}
 
@@ -948,7 +972,9 @@ static pid_t pid_of_command = -1;
 /* Send an unconditional kill signal to the running external command. */
 void cancel_the_command(int signal)
 {
+#ifdef SIGKILL
 	kill(pid_of_command, SIGKILL);
+#endif
 }
 
 /* Send the text that starts at the given line to file descriptor fd. */
@@ -971,10 +997,12 @@ void send_data(const linestruct *line, int fd)
 /* Execute the given command in a shell.  Return TRUE on success. */
 bool execute_command(const char *command)
 {
+#if defined(HAVE_FORK) && defined(HAVE_PIPE) && defined(HAVE_WAIT)
 	int from_fd[2], to_fd[2];
 		/* The pipes through which text will be written and read. */
 	struct sigaction oldaction, newaction = {{0}};
 		/* Original and temporary handlers for SIGINT. */
+	ssize_t was_lineno = (openfile->mark ? 0 : openfile->current->lineno);
 	const bool should_pipe = (command[0] == '|');
 	FILE *stream;
 
@@ -1006,6 +1034,7 @@ bool execute_command(const char *command)
 		if (should_pipe) {
 			if (dup2(to_fd[0], STDIN_FILENO) < 0)
 				exit(5);
+			close(from_fd[1]);
 			close(to_fd[1]);
 		}
 
@@ -1052,7 +1081,8 @@ bool execute_command(const char *command)
 			}
 			add_undo(CUT, NULL);
 			do_snip(openfile->mark != NULL, openfile->mark == NULL, FALSE);
-			openfile->filetop->has_anchor = FALSE;
+			if (openfile->filetop->next == NULL)
+				openfile->filetop->has_anchor = FALSE;
 			update_undo(CUT);
 		}
 
@@ -1088,8 +1118,11 @@ bool execute_command(const char *command)
 	else
 		read_file(stream, 0, "pipe", TRUE);
 
-	if (should_pipe && !ISSET(MULTIBUFFER))
+	if (should_pipe && !ISSET(MULTIBUFFER)) {
+		if (was_lineno)
+			goto_line_posx(was_lineno, 0);
 		add_undo(COUPLE_END, N_("filtering"));
+	}
 
 	/* Wait for the external command (and possibly data sender) to terminate. */
 	wait(NULL);
@@ -1104,12 +1137,16 @@ bool execute_command(const char *command)
 	terminal_init();
 
 	return TRUE;
+#else
+	return FALSE;
+#endif
 }
 #endif /* NANO_TINY */
 
-/* Insert a file into the current buffer, or into a new buffer when
- * the MULTIBUFFER flag is set. */
-void do_insertfile(bool execute)
+/* Insert a file into the current buffer (or into a new buffer).  But when
+ * execute is TRUE, run a command in the shell and insert its output into
+ * the buffer, or just run one of the tools listed in the help lines. */
+void insert_a_file_or(bool execute)
 {
 	int response;
 	const char *msg;
@@ -1158,15 +1195,9 @@ void do_insertfile(bool execute)
 
 		present_path = mallocstrcpy(present_path, "./");
 
-		response = do_prompt(
-#ifndef NANO_TINY
-							execute ? MEXECUTE :
-#endif
-							MINSERTFILE, given,
-#ifndef NANO_TINY
-							execute ? &execute_history :
-#endif
-							NULL, edit_refresh, msg,
+		response = do_prompt(execute ? MEXECUTE : MINSERTFILE, given,
+							execute ? &execute_history : NULL,
+							edit_refresh, msg,
 #ifdef ENABLE_OPERATINGDIR
 							operating_dir != NULL ? operating_dir :
 #endif
@@ -1242,7 +1273,7 @@ void do_insertfile(bool execute)
 				if (*answer != '\0') {
 					execute_command(answer);
 #ifdef ENABLE_HISTORIES
-					update_history(&execute_history, answer);
+					update_history(&execute_history, answer, PRUNE_DUPLICATE);
 #endif
 				}
 
@@ -1275,7 +1306,7 @@ void do_insertfile(bool execute)
 					if (!execute)
 #endif
 					if (has_old_position(answer, &priorline, &priorcol))
-						do_gotolinecolumn(priorline, priorcol, FALSE, FALSE);
+						goto_line_and_column(priorline, priorcol, FALSE, FALSE);
 				}
 #endif
 				/* Update title bar and color info for this new buffer. */
@@ -1306,10 +1337,10 @@ void do_insertfile(bool execute)
 }
 
 /* If the current mode of operation allows it, go insert a file. */
-void do_insertfile_void(void)
+void do_insertfile(void)
 {
 	if (!in_restricted_mode())
-		do_insertfile(FALSE);
+		insert_a_file_or(FALSE);
 }
 
 #ifndef NANO_TINY
@@ -1317,7 +1348,7 @@ void do_insertfile_void(void)
 void do_execute(void)
 {
 	if (!in_restricted_mode())
-		do_insertfile(TRUE);
+		insert_a_file_or(TRUE);
 }
 #endif
 
@@ -1325,106 +1356,36 @@ void do_execute(void)
  * absolute path (plus filename) when the path exists, and NULL when not. */
 char *get_full_path(const char *origpath)
 {
-	char *allocation, *here, *target, *last_slash;
-	char *just_filename = NULL;
-	int attempts = 0;
+	char *untilded, *target, *slash;
 	struct stat fileinfo;
-	bool path_only;
 
 	if (origpath == NULL)
 		return NULL;
 
-	allocation = nmalloc(PATH_MAX + 1);
-	here = getcwd(allocation, PATH_MAX + 1);
+	untilded = real_dir_from_tilde(origpath);
+	target = realpath(untilded, NULL);
+	slash = strrchr(untilded, '/');
 
-	/* If getting the current directory failed, go up one level and try again,
-	 * until we find an existing directory, and use that as the current one. */
-	while (here == NULL && attempts < 20) {
-		IGNORE_CALL_RESULT(chdir(".."));
-		here = getcwd(allocation, PATH_MAX + 1);
-		attempts++;
-	}
+	/* If realpath() returned NULL, try without the last component,
+	 * as this can be a file that does not exist yet. */
+	if (!target && slash && slash[1]) {
+		*slash = '\0';
+		target = realpath(untilded, NULL);
 
-	/* If we found a directory, make sure its path ends in a slash. */
-	if (here != NULL) {
-		if (strcmp(here, "/") != 0) {
-			here = nrealloc(here, strlen(here) + 2);
-			strcat(here, "/");
-		}
-	} else {
-		here = copy_of("");
-		free(allocation);
-	}
-
-	target = real_dir_from_tilde(origpath);
-
-	/* Determine whether the target path refers to a directory.  If statting
-	 * target fails, however, assume that it refers to a new, unsaved buffer. */
-	path_only = (stat(target, &fileinfo) != -1 && S_ISDIR(fileinfo.st_mode));
-
-	/* If the target is a directory, make sure its path ends in a slash. */
-	if (path_only) {
-		size_t length = strlen(target);
-
-		if (target[length - 1] != '/') {
-			target = nrealloc(target, length + 2);
-			strcat(target, "/");
+		/* Upon success, re-add the last component of the original path. */
+		if (target) {
+			target = nrealloc(target, strlen(target) + strlen(slash + 1) + 1);
+			strcat(target, slash + 1);
 		}
 	}
 
-	last_slash = strrchr(target, '/');
-
-	/* If the target path does not contain a slash, then it is a bare filename
-	 * and must therefore be located in the working directory. */
-	if (last_slash == NULL) {
-		just_filename = target;
-		target = here;
-	} else {
-		/* If target contains a filename, separate the two. */
-		if (!path_only) {
-			just_filename = copy_of(last_slash + 1);
-			*(last_slash + 1) = '\0';
-		}
-
-		/* If we can't change to the target directory, give up.  Otherwise,
-		 * get the canonical path to this target directory. */
-		if (chdir(target) == -1) {
-			free(target);
-			target = NULL;
-		} else {
-			free(target);
-
-			allocation = nmalloc(PATH_MAX + 1);
-			target = getcwd(allocation, PATH_MAX + 1);
-
-			/* If we got a result, make sure it ends in a slash.
-			 * Otherwise, ensure that we return NULL. */
-			if (target != NULL) {
-				if (strcmp(target, "/") != 0) {
-					target = nrealloc(target, strlen(target) + 2);
-					strcat(target, "/");
-				}
-			} else {
-				path_only = TRUE;
-				free(allocation);
-			}
-
-			/* Finally, go back to where we were before.  We don't check
-			 * for an error, since we can't do anything if we get one. */
-			IGNORE_CALL_RESULT(chdir(here));
-		}
-
-		free(here);
+	/* Ensure that a directory path ends with a slash. */
+	if (target && stat(target, &fileinfo) == 0 && S_ISDIR(fileinfo.st_mode)) {
+		target = nrealloc(target, strlen(target) + 2);
+		strcat(target, "/");
 	}
 
-	/* If we were given more than a bare path, concatenate the target path
-	 * with the filename portion to get the full, absolute file path. */
-	if (!path_only && target != NULL) {
-		target = nrealloc(target, strlen(target) + strlen(just_filename) + 1);
-		strcat(target, just_filename);
-	}
-
-	free(just_filename);
+	free(untilded);
 
 	return target;
 }
@@ -1656,6 +1617,7 @@ bool make_backup_of(char *realname)
 	if (backup_file == NULL)
 		goto problem;
 
+#ifdef HAVE_FCHOWN
 	/* Try to change owner and group to those of the original file;
 	 * ignore permission errors, as a normal user cannot change the owner. */
 	if (fchown(descriptor, openfile->statinfo->st_uid,
@@ -1663,7 +1625,8 @@ bool make_backup_of(char *realname)
 		fclose(backup_file);
 		goto problem;
 	}
-
+#endif
+#ifdef HAVE_FCHMOD
 	/* Set the backup's permissions to those of the original file.
 	 * It is not a security issue if this fails, as we have created
 	 * the file with just read and write permission for the owner. */
@@ -1671,6 +1634,7 @@ bool make_backup_of(char *realname)
 		fclose(backup_file);
 		goto problem;
 	}
+#endif
 
 	original = fopen(realname, "rb");
 
@@ -1735,8 +1699,8 @@ bool make_backup_of(char *realname)
 	 * ask the user what to do, because if something goes wrong during the
 	 * save of the file itself, its contents may be lost. */
 	/* TRANSLATORS: Try to keep this message at most 76 characters. */
-	if (errno != ENOSPC && do_yesno_prompt(FALSE, _("Cannot make backup; "
-								"continue and save actual file? ")) == 1)
+	if (errno != ENOSPC && ask_user(YESORNO, _("Cannot make backup; "
+							"continue and save actual file? ")) == YES)
 		return TRUE;
 
 	/* TRANSLATORS: The %s is the reason of failure. */
@@ -1977,6 +1941,19 @@ bool write_file(const char *name, FILE *thefile, bool normal,
 		statusline(ALERT, _("Error writing %s: %s"), realname, strerror(errno));
 
   cleanup_and_exit:
+#ifndef NANO_TINY
+		if (errno == ENOSPC && normal) {
+			napms(3200); lastmessage = VACUUM;
+			/* TRANSLATORS: This warns for data loss when the disk is full. */
+			statusline(ALERT, _("File on disk has been truncated!"));
+			napms(3200); lastmessage = VACUUM;
+			/* TRANSLATORS: This is a suggestion to the user,
+			 * where "resume" means resuming from suspension.
+			 * Try to keep this at most 76 characters. */
+			statusline(ALERT, _("Maybe ^T^Z, make room on disk, resume, then ^S^X"));
+			stat_with_alloc(realname, &openfile->statinfo);
+		}
+#endif
 		free(tempname);
 		free(realname);
 		return FALSE;
@@ -2030,7 +2007,7 @@ bool write_file(const char *name, FILE *thefile, bool normal,
 	}
 
 #ifndef NANO_TINY
-	if (ISSET(MINIBAR) && LINES > 1 && annotate)
+	if (ISSET(MINIBAR) && !ISSET(ZERO) && LINES > 1 && annotate)
 		report_size = TRUE;
 	else
 #endif
@@ -2058,7 +2035,7 @@ bool write_region_to_file(const char *name, FILE *stream, bool normal,
 	get_region(&topline, &top_x, &botline, &bot_x);
 
 	/* When needed, prepare a magic end line for the region. */
-	if (bot_x > 0 && !ISSET(NO_NEWLINES)) {
+	if (normal && bot_x > 0 && !ISSET(NO_NEWLINES)) {
 		stopper = make_new_node(botline);
 		stopper->data = copy_of("");
 	} else
@@ -2089,13 +2066,12 @@ bool write_region_to_file(const char *name, FILE *stream, bool normal,
 }
 #endif /* !NANO_TINY */
 
-/* Write the current buffer to disk.  If the mark is on, write the current
- * marked selection to disk.  If exiting is TRUE, write the entire buffer
- * to disk regardless of whether the mark is on.  Do not ask for a name
- * when withprompt is FALSE nor when the SAVE_ON_EXIT flag is set and the
- * buffer already has a name.  Return 0 on error, 1 on success, and 2 when
+/* Write the current buffer (or marked region) to disk.  If exiting is TRUE,
+ * write the entire buffer regardless of whether the mark is on.  Do not ask
+ * for a name when withprompt is FALSE (nor when doing save-on-exit and the
+ * buffer already has a name).  Return 0 on error, 1 on success, and 2 when
  * the buffer is to be discarded. */
-int do_writeout(bool exiting, bool withprompt)
+int write_it_out(bool exiting, bool withprompt)
 {
 	char *given;
 		/* The filename we offer, or what the user typed so far. */
@@ -2116,9 +2092,10 @@ int do_writeout(bool exiting, bool withprompt)
 #endif
 
 	while (TRUE) {
-		int response = 0, choice = 0;
 		functionptrtype func;
 		const char *msg;
+		int response = 0;
+		int choice = NO;
 #ifndef NANO_TINY
 		const char *formatstr = (openfile->fmt == DOS_FILE) ? _(" [DOS Format]") :
 						(openfile->fmt == MAC_FILE) ? _(" [Mac Format]") : "";
@@ -2184,22 +2161,24 @@ int do_writeout(bool exiting, bool withprompt)
 		} else
 #endif
 #ifndef NANO_TINY
-		if (func == dos_format_void) {
+		if (func == dos_format) {
 			openfile->fmt = (openfile->fmt == DOS_FILE) ? NIX_FILE : DOS_FILE;
 			continue;
-		} else if (func == mac_format_void) {
+		} else if (func == mac_format) {
 			openfile->fmt = (openfile->fmt == MAC_FILE) ? NIX_FILE : MAC_FILE;
 			continue;
-		} else if (func == backup_file_void) {
+		} else if (func == back_it_up) {
 			TOGGLE(MAKE_BACKUP);
 			continue;
-		} else if (func == prepend_void) {
-			method = (method == PREPEND) ? OVERWRITE : PREPEND;
+		} else if (func == prepend_it || func == append_it) {
+			if (func == prepend_it)
+				method = (method == PREPEND) ? OVERWRITE : PREPEND;
+			else
+				method = (method == APPEND) ? OVERWRITE : APPEND;
+			if (strcmp(answer, openfile->filename) == 0)
+				given[0] = '\0';
 			continue;
-		} else if (func == append_void) {
-			method = (method == APPEND) ? OVERWRITE : APPEND;
-			continue;
-		}
+		} else
 #endif
 		if (func == do_help)
 			continue;
@@ -2257,8 +2236,8 @@ int do_writeout(bool exiting, bool withprompt)
 					if (exiting || !openfile->mark)
 #endif
 					{
-						if (do_yesno_prompt(FALSE, _("Save file under "
-												"DIFFERENT NAME? ")) < 1)
+						if (ask_user(YESORNO, _("Save file under "
+												"DIFFERENT NAME? ")) != YES)
 							continue;
 						maychange = TRUE;
 					}
@@ -2271,12 +2250,12 @@ int do_writeout(bool exiting, bool withprompt)
 
 					sprintf(message, question, name);
 
-					choice = do_yesno_prompt(FALSE, message);
+					choice = ask_user(YESORNO, message);
 
 					free(message);
 					free(name);
 
-					if (choice < 1)
+					if (choice != YES)
 						continue;
 				}
 			}
@@ -2292,7 +2271,7 @@ int do_writeout(bool exiting, bool withprompt)
 				warn_and_briefly_pause(_("File on disk has changed"));
 
 				/* TRANSLATORS: Try to keep this at most 76 characters. */
-				choice = do_yesno_prompt(FALSE, _("File was modified "
+				choice = ask_user(YESORNO, _("File was modified "
 								"since you opened it; continue saving? "));
 				wipe_statusbar();
 
@@ -2300,14 +2279,16 @@ int do_writeout(bool exiting, bool withprompt)
 				 * overwrite the file right here when requested. */
 				if (ISSET(SAVE_ON_EXIT) && withprompt) {
 					free(given);
-					if (choice == 1)
+					if (choice == YES)
 						return write_file(openfile->filename, NULL,
 											NORMAL, OVERWRITE, NONOTES);
-					else if (choice == 0)
+					else if (choice == NO)  /* Discard buffer */
 						return 2;
 					else
 						return 0;
-				} else if (choice != 1) {
+				} else if (choice == CANCEL && exiting) {
+					continue;
+				} else if (choice != YES) {
 					free(given);
 					return 1;
 				}
@@ -2331,17 +2312,17 @@ int do_writeout(bool exiting, bool withprompt)
 }
 
 /* Write the current buffer to disk, or discard it. */
-void do_writeout_void(void)
+void do_writeout(void)
 {
 	/* If the user chose to discard the buffer, close it. */
-	if (do_writeout(FALSE, TRUE) == 2)
+	if (write_it_out(FALSE, TRUE) == 2)
 		close_and_go();
 }
 
 /* If it has a name, write the current buffer to disk without prompting. */
 void do_savefile(void)
 {
-	if (do_writeout(FALSE, FALSE) == 2)
+	if (write_it_out(FALSE, FALSE) == 2)
 		close_and_go();
 }
 
@@ -2629,6 +2610,7 @@ char *input_tab(char *morsel, size_t *place, void (*refresh_func)(void), bool *l
 
 	/* If there is more than one possible completion, show a sorted list. */
 	if (num_matches > 1) {
+		int lastrow = editwinrows - 1 - (ISSET(ZERO) && LINES > 1 ? 1 : 0);
 		size_t longest_name = 0;
 		size_t nrows, ncols;
 		int row;
@@ -2654,7 +2636,7 @@ char *input_tab(char *morsel, size_t *place, void (*refresh_func)(void), bool *l
 		ncols = (COLS + 1) / (longest_name + 2);
 		nrows = (num_matches + ncols - 1) / ncols;
 
-		row = (nrows < editwinrows - 1) ? editwinrows - nrows - 1 : 0;
+		row = (nrows < lastrow) ? lastrow - nrows : 0;
 
 		/* Blank the edit window and hide the cursor. */
 		blank_edit();
@@ -2664,23 +2646,23 @@ char *input_tab(char *morsel, size_t *place, void (*refresh_func)(void), bool *l
 		for (match = 0; match < num_matches; match++) {
 			char *disp;
 
-			wmove(edit, row, (longest_name + 2) * (match % ncols));
+			wmove(midwin, row, (longest_name + 2) * (match % ncols));
 
-			if (row == editwinrows - 1 && (match + 1) % ncols == 0 &&
+			if (row == lastrow && (match + 1) % ncols == 0 &&
 											match + 1 < num_matches) {
-				waddstr(edit, _("(more)"));
+				waddstr(midwin, _("(more)"));
 				break;
 			}
 
 			disp = display_string(matches[match], 0, longest_name, FALSE, FALSE);
-			waddstr(edit, disp);
+			waddstr(midwin, disp);
 			free(disp);
 
 			if ((match + 1) % ncols == 0)
 				row++;
 		}
 
-		wnoutrefresh(edit);
+		wnoutrefresh(midwin);
 		*listed = TRUE;
 	}
 

src/global.c

@@ -1,8 +1,8 @@
 /**************************************************************************
  *   global.c  --  This file is part of GNU nano.                         *
  *                                                                        *
- *   Copyright (C) 1999-2011, 2013-2021 Free Software Foundation, Inc.    *
- *   Copyright (C) 2014-2020 Benno Schulenberg                            *
+ *   Copyright (C) 1999-2011, 2013-2022 Free Software Foundation, Inc.    *
+ *   Copyright (C) 2014-2021 Benno Schulenberg                            *
  *                                                                        *
  *   GNU nano is free software: you can redistribute it and/or modify     *
  *   it under the terms of the GNU General Public License as published    *
@@ -80,8 +80,6 @@ linestruct *pletion_line = NULL;
 bool also_the_last = FALSE;
 		/* Whether indenting/commenting should include the last line of
 		 * the marked region. */
-bool hide_cursor = FALSE;
-		/* Whether to suppress the cursor when highlighting a search match. */
 
 char *answer = NULL;
 		/* The answer string used by the status-bar prompt. */
@@ -120,12 +118,12 @@ size_t wrap_at = 0;
 WINDOW *topwin = NULL;
 		/* The top portion of the screen, showing the version number of nano,
 		 * the name of the file, and whether the buffer was modified. */
-WINDOW *edit = NULL;
+WINDOW *midwin = NULL;
 		/* The middle portion of the screen: the edit window, showing the
 		 * contents of the current buffer, the file we are editing. */
-WINDOW *bottomwin = NULL;
-		/* The bottom portion of the screen, where we display statusbar
-		 * messages, the status-bar prompt, and a list of shortcuts. */
+WINDOW *footwin = NULL;
+		/* The bottom portion of the screen, where status-bar messages,
+		 * the status-bar prompt, and a list of shortcuts are shown. */
 int editwinrows = 0;
 		/* How many rows does the edit window take up? */
 int editwincols = -1;
@@ -203,6 +201,12 @@ char *syntaxstr = NULL;
 		/* The color syntax name specified on the command line. */
 bool have_palette = FALSE;
 		/* Whether the colors for the current syntax have been initialized. */
+bool rescind_colors = FALSE;
+		/* Becomes TRUE when NO_COLOR is set in the environment. */
+bool perturbed = FALSE;
+		/* Whether the multiline-coloring situation has changed. */
+bool recook = FALSE;
+		/* Whether the multidata should be recalculated. */
 #endif
 
 int currmenu = MMOST;
@@ -218,15 +222,16 @@ funcstruct *exitfunc;
 
 linestruct *search_history = NULL;
 		/* The current item in the list of strings that were searched for. */
-linestruct *execute_history = NULL;
-		/* The current item in the list of commands that were run with ^R ^X. */
 linestruct *replace_history = NULL;
 		/* The current item in the list of replace strings. */
+linestruct *execute_history = NULL;
+		/* The current item in the list of commands that were run with ^T. */
+
 #ifdef ENABLE_HISTORIES
 linestruct *searchtop = NULL;
 		/* The oldest item in the list of search strings. */
 linestruct *searchbot = NULL;
-		/* The newest item in the list of search strings. */
+		/* The empty item at the end of the list of search strings. */
 
 linestruct *replacetop = NULL;
 linestruct *replacebot = NULL;
@@ -282,72 +287,36 @@ size_t light_to_col = 0;
 #endif
 
 /* Empty functions, for the most part corresponding to toggles. */
-void case_sens_void(void)
-{
-}
-void regexp_void(void)
-{
-}
-void backwards_void(void)
-{
-}
-void flip_replace(void)
-{
-}
-void flip_goto(void)
-{
-}
+void case_sens_void(void)  {;}
+void regexp_void(void)  {;}
+void backwards_void(void)  {;}
+#ifdef ENABLE_HISTORIES
+void get_older_item(void)  {;}
+void get_newer_item(void)  {;}
+#endif
+void flip_replace(void)  {;}
+void flip_goto(void)  {;}
 #ifdef ENABLE_BROWSER
-void to_files(void)
-{
-}
-void goto_dir(void)
-{
-}
+void to_files(void)  {;}
+void goto_dir(void)  {;}
 #endif
 #ifndef NANO_TINY
-void do_nothing(void)
-{
-}
-void do_toggle_void(void)
-{
-}
-void dos_format_void(void)
-{
-}
-void mac_format_void(void)
-{
-}
-void append_void(void)
-{
-}
-void prepend_void(void)
-{
-}
-void backup_file_void(void)
-{
-}
-void flip_execute(void)
-{
-}
-void flip_pipe(void)
-{
-}
-void flip_convert(void)
-{
-}
+void do_nothing(void)  {;}
+void do_toggle(void)  {;}
+void dos_format(void)  {;}
+void mac_format(void)  {;}
+void append_it(void)  {;}
+void prepend_it(void)  {;}
+void back_it_up(void)  {;}
+void flip_execute(void)  {;}
+void flip_pipe(void)  {;}
+void flip_convert(void)  {;}
 #endif
 #ifdef ENABLE_MULTIBUFFER
-void flip_newbuffer(void)
-{
-}
+void flip_newbuffer(void)  {;}
 #endif
-void discard_buffer(void)
-{
-}
-void do_cancel(void)
-{
-}
+void discard_buffer(void)  {;}
+void do_cancel(void)  {;}
 
 /* Add a function to the linked list of functions. */
 void add_to_funcs(void (*func)(void), int menus, const char *desc,
@@ -554,6 +523,14 @@ functionptrtype interpret(int *keycode)
 }
 #endif /* ENABLE_BROWSER || ENABLE_HELP */
 
+#if defined(NANO_TINY) && defined(ENABLE_LINENUMBERS)
+/* Allow toggling line numbers also in the tiny version. */
+void toggle_numbers(void)
+{
+	TOGGLE(LINE_NUMBERS);
+}
+#endif
+
 /* These two tags are used elsewhere too, so they are global. */
 /* TRANSLATORS: Try to keep the next two strings at most 10 characters. */
 const char *exit_tag = N_("Exit");
@@ -631,7 +608,7 @@ void shortcut_init(void)
 	const char *nextfile_gist = N_("Switch to the next file buffer");
 #endif
 	const char *verbatim_gist = N_("Insert the next keystroke verbatim");
-	const char *tab_gist = N_("Insert a tab at the cursor position");
+	const char *tab_gist = N_("Insert a tab at the cursor position (or indent marked lines)");
 	const char *enter_gist = N_("Insert a newline at the cursor position");
 	const char *delete_gist = N_("Delete the character under the cursor");
 	const char *backspace_gist =
@@ -650,10 +627,10 @@ void shortcut_init(void)
 #endif
 #ifndef NANO_TINY
 	const char *wordcount_gist =
-		N_("Count the number of words, lines, and characters");
+		N_("Count the number of lines, words, and characters");
+	const char *suspend_gist = N_("Suspend the editor (return to the shell)");
 #endif
 	const char *refresh_gist = N_("Refresh (redraw) the current screen");
-	const char *suspend_gist = N_("Suspend the editor (if suspension is enabled)");
 #ifdef ENABLE_WORDCOMPLETION
 	const char *completion_gist = N_("Try and complete the current word");
 #endif
@@ -755,7 +732,7 @@ void shortcut_init(void)
 	add_to_funcs(flip_goto, MGOTOLINE, "Go To Text", "x", 0, VIEW);
 #endif
 
-	add_to_funcs(do_writeout_void, MMAIN,
+	add_to_funcs(do_writeout, MMAIN,
 		N_("Write Out"), WITHORSANS(writeout_gist), TOGETHER, NOVIEW);
 
 #ifdef ENABLE_JUSTIFY
@@ -763,7 +740,7 @@ void shortcut_init(void)
 	 * otherwise, show Insert anyway, to keep the help items paired. */
 	if (!ISSET(RESTRICTED))
 #endif
-		add_to_funcs(do_insertfile_void, MMAIN,
+		add_to_funcs(do_insertfile, MMAIN,
 				N_("Read File"), WITHORSANS(readfile_gist), BLANKAFTER,
 				/* We allow inserting files in view mode if multibuffer mode
 				 * is available, so that the user can view multiple files. */
@@ -821,7 +798,7 @@ void shortcut_init(void)
 #if defined(NANO_TINY) || defined(ENABLE_JUSTIFY)
 	/* Conditionally placing this one here or further on, to keep the
 	 * help items nicely paired in most conditions. */
-	add_to_funcs(do_gotolinecolumn_void, MMAIN,
+	add_to_funcs(do_gotolinecolumn, MMAIN,
 		N_("Go To Line"), WITHORSANS(gotoline_gist), BLANKAFTER, VIEW);
 #endif
 
@@ -851,9 +828,9 @@ void shortcut_init(void)
 		N_("No Replace"), WITHORSANS(whereis_gist), BLANKAFTER, VIEW);
 
 #ifdef ENABLE_HISTORIES
-	add_to_funcs(get_history_older_void, MWHEREIS|MREPLACE|MREPLACEWITH|MWHEREISFILE,
+	add_to_funcs(get_older_item, MWHEREIS|MREPLACE|MREPLACEWITH|MWHEREISFILE,
 		N_("Older"), WITHORSANS(older_gist), TOGETHER, VIEW);
-	add_to_funcs(get_history_newer_void, MWHEREIS|MREPLACE|MREPLACEWITH|MWHEREISFILE,
+	add_to_funcs(get_newer_item, MWHEREIS|MREPLACE|MREPLACEWITH|MWHEREISFILE,
 		N_("Newer"), WITHORSANS(newer_gist), BLANKAFTER, VIEW);
 #endif
 
@@ -864,7 +841,7 @@ void shortcut_init(void)
 
 #ifdef ENABLE_BROWSER
 	add_to_funcs(goto_dir, MBROWSER,
-		/* TRANSLATORS: Try to keep the next seven strings at most 10 characters. */
+		/* TRANSLATORS: Try to keep the next four strings at most 10 characters. */
 		N_("Go To Dir"), WITHORSANS(gotodir_gist), TOGETHER, VIEW);
 #ifdef ENABLE_HELP
 	add_to_funcs(full_refresh, MBROWSER,
@@ -968,7 +945,7 @@ void shortcut_init(void)
 #endif
 
 #if !defined(NANO_TINY) && !defined(ENABLE_JUSTIFY)
-	add_to_funcs(do_gotolinecolumn_void, MMAIN,
+	add_to_funcs(do_gotolinecolumn, MMAIN,
 		N_("Go To Line"), WITHORSANS(gotoline_gist), BLANKAFTER, VIEW);
 #endif
 
@@ -1005,21 +982,22 @@ void shortcut_init(void)
 #endif
 
 #ifndef NANO_TINY
-	add_to_funcs(do_wordlinechar_count, MMAIN,
+	add_to_funcs(count_lines_words_and_characters, MMAIN,
 		N_("Word Count"), WITHORSANS(wordcount_gist), TOGETHER, VIEW);
 #endif
 
 	add_to_funcs(do_verbatim_input, MMAIN,
 		N_("Verbatim"), WITHORSANS(verbatim_gist), BLANKAFTER, NOVIEW);
 
+#ifndef NANO_TINY
+	add_to_funcs(do_suspend, MMAIN,
+		N_("Suspend"), WITHORSANS(suspend_gist), TOGETHER, VIEW);
+#endif
 #ifdef ENABLE_HELP
 	add_to_funcs(full_refresh, MMAIN,
-		N_("Refresh"), WITHORSANS(refresh_gist), TOGETHER, VIEW);
+		N_("Refresh"), WITHORSANS(refresh_gist), BLANKAFTER, VIEW);
 #endif
 
-	add_to_funcs(do_suspend_void, MMAIN,
-		N_("Suspend"), WITHORSANS(suspend_gist), BLANKAFTER, VIEW);
-
 #ifndef NANO_TINY
 	add_to_funcs(do_indent, MMAIN,
 		N_("Indent"), WITHORSANS(indent_gist), TOGETHER, NOVIEW);
@@ -1049,7 +1027,7 @@ void shortcut_init(void)
 		N_("Down to anchor"), WITHORSANS(nextanchor_gist), BLANKAFTER, VIEW);
 
 	add_to_funcs(zap_text, MMAIN,
-		/* TRANSLATORS: This *deletes* a line or marked region. */
+		/* TRANSLATORS: This refers to deleting a line or marked region. */
 		N_("Zap"), WITHORSANS(zap_gist), BLANKAFTER, NOVIEW);
 
 	if (!ISSET(RESTRICTED)) {
@@ -1111,9 +1089,9 @@ void shortcut_init(void)
 #endif
 
 #ifndef NANO_TINY
-	add_to_funcs(dos_format_void, MWRITEFILE,
+	add_to_funcs(dos_format, MWRITEFILE,
 		N_("DOS Format"), WITHORSANS(dos_gist), TOGETHER, NOVIEW);
-	add_to_funcs(mac_format_void, MWRITEFILE,
+	add_to_funcs(mac_format, MWRITEFILE,
 		N_("Mac Format"), WITHORSANS(mac_gist), TOGETHER, NOVIEW);
 
 	/* If we're using restricted mode, the Append, Prepend, and Backup toggles
@@ -1121,12 +1099,12 @@ void shortcut_init(void)
 	 * reduplicating the current file, and the third is not allowed as it
 	 * would write to a file not specified on the command line. */
 	if (!ISSET(RESTRICTED)) {
-		add_to_funcs(append_void, MWRITEFILE,
+		add_to_funcs(append_it, MWRITEFILE,
 			N_("Append"), WITHORSANS(append_gist), TOGETHER, NOVIEW);
-		add_to_funcs(prepend_void, MWRITEFILE,
+		add_to_funcs(prepend_it, MWRITEFILE,
 			N_("Prepend"), WITHORSANS(prepend_gist), TOGETHER, NOVIEW);
 
-		add_to_funcs(backup_file_void, MWRITEFILE,
+		add_to_funcs(back_it_up, MWRITEFILE,
 			N_("Backup File"), WITHORSANS(backup_gist), BLANKAFTER, NOVIEW);
 	}
 
@@ -1141,7 +1119,7 @@ void shortcut_init(void)
 		add_to_funcs(cut_till_eof, MEXECUTE,
 			N_("Cut Till End"), WITHORSANS(cuttilleof_gist), BLANKAFTER, NOVIEW);
 
-		add_to_funcs(do_suspend_void, MEXECUTE,
+		add_to_funcs(do_suspend, MEXECUTE,
 			N_("Suspend"), WITHORSANS(suspend_gist), BLANKAFTER, VIEW);
 	}
 #endif /* !NANO_TINY */
@@ -1206,25 +1184,32 @@ void shortcut_init(void)
 	add_to_sclist(MMAIN|MBROWSER|MHELP, "^X", 0, do_exit, 0);
 	if (!ISSET(PRESERVE))
 		add_to_sclist(MMAIN, "^S", 0, do_savefile, 0);
-	add_to_sclist(MMAIN, "^O", 0, do_writeout_void, 0);
-	add_to_sclist(MMAIN, "^R", 0, do_insertfile_void, 0);
-	add_to_sclist(MMAIN, "Ins", KEY_IC, do_insertfile_void, 0);
+	add_to_sclist(MMAIN, "^O", 0, do_writeout, 0);
+	add_to_sclist(MMAIN, "^R", 0, do_insertfile, 0);
+	add_to_sclist(MMAIN, "Ins", KEY_IC, do_insertfile, 0);
 	if (!ISSET(PRESERVE))
 		add_to_sclist(MMAIN|MBROWSER|MHELP, "^Q", 0, do_search_backward, 0);
 	add_to_sclist(MMAIN|MBROWSER|MHELP, "^W", 0, do_search_forward, 0);
 	add_to_sclist(MMAIN, "^\\", 0, do_replace, 0);
 	add_to_sclist(MMAIN, "M-R", 0, do_replace, 0);
 	add_to_sclist(MMOST, "^K", 0, cut_text, 0);
+#ifdef NANO_TINY
+	add_to_sclist(MMAIN, "^U", 0, paste_text, 0);
+#else
 	add_to_sclist(MMOST, "^U", 0, paste_text, 0);
-#ifndef NANO_TINY
 	add_to_sclist(MMAIN, "^T", 0, do_execute, 0);
 #endif
 #ifdef ENABLE_JUSTIFY
 	add_to_sclist(MMAIN, "^J", '\n', do_justify, 0);
 #endif
 #ifdef ENABLE_SPELLER
-	add_to_sclist(MEXECUTE, "^S", 0, do_spell, 0);
+#ifndef NANO_TINY
+	if (!ISSET(PRESERVE))
+		add_to_sclist(MEXECUTE, "^S", 0, do_spell, 0);
 	add_to_sclist(MEXECUTE, "^T", 0, do_spell, 0);
+#else
+	add_to_sclist(MMAIN, "^T", 0, do_spell, 0);
+#endif
 #endif
 #ifdef ENABLE_COLOR
 	add_to_sclist(MMAIN, "M-B", 0, do_linter, 0);
@@ -1233,9 +1218,9 @@ void shortcut_init(void)
 	add_to_sclist(MEXECUTE, "^O", 0, do_formatter, 0);
 #endif
 	add_to_sclist(MMAIN, "^C", 0, report_cursor_position, 0);
-	add_to_sclist(MMAIN, SLASH_OR_DASH, 0, do_gotolinecolumn_void, 0);
-	add_to_sclist(MMAIN, "M-G", 0, do_gotolinecolumn_void, 0);
-	add_to_sclist(MMAIN, "^_", 0, do_gotolinecolumn_void, 0);
+	add_to_sclist(MMAIN, SLASH_OR_DASH, 0, do_gotolinecolumn, 0);
+	add_to_sclist(MMAIN, "M-G", 0, do_gotolinecolumn, 0);
+	add_to_sclist(MMAIN, "^_", 0, do_gotolinecolumn, 0);
 	add_to_sclist(MMAIN|MBROWSER|MHELP|MLINTER, "^Y", 0, do_page_up, 0);
 	add_to_sclist(MMAIN|MBROWSER|MHELP|MLINTER, "PgUp", KEY_PPAGE, do_page_up, 0);
 	add_to_sclist(MMAIN|MBROWSER|MHELP|MLINTER, "^V", 0, do_page_down, 0);
@@ -1250,19 +1235,23 @@ void shortcut_init(void)
 	add_to_sclist(MMAIN|MBROWSER|MHELP, "M-W", 0, do_findnext, 0);
 	add_to_sclist(MMAIN|MBROWSER|MHELP, "M-Q", 0, do_findprevious, 0);
 #ifdef NANO_TINY
+#ifdef ENABLE_LINENUMBERS
+	add_to_sclist(MMAIN, "M-N", 0, toggle_numbers, 0);
+#else
 	add_to_sclist(MMAIN, "M-B", 0, to_prev_word, 0);
-	add_to_sclist(MMAIN, "M-D", 0, to_prev_word, 0);
 	add_to_sclist(MMAIN, "M-N", 0, to_next_word, 0);
+#endif
+	add_to_sclist(MMAIN, "M-D", 0, to_prev_word, 0);
 	add_to_sclist(MMAIN, "M-F", 0, to_next_word, 0);
 #else
 	add_to_sclist(MMAIN, "M-]", 0, do_find_bracket, 0);
 	add_to_sclist(MMAIN, "M-A", 0, do_mark, 0);
 	add_to_sclist(MMAIN, "^6", 0, do_mark, 0);
 	add_to_sclist(MMAIN, "^^", 0, do_mark, 0);
-	add_to_sclist(MMAIN, "M-6", 0, copy_text, 0);
-	add_to_sclist(MMAIN, "M-^", 0, copy_text, 0);
+	add_to_sclist(MMOST, "M-6", 0, copy_text, 0);
+	add_to_sclist(MMOST, "M-^", 0, copy_text, 0);
 	add_to_sclist(MMAIN, "M-}", 0, do_indent, 0);
-	add_to_sclist(MMAIN, "Tab", INDENT_KEY, do_indent, 0);
+	add_to_sclist(MMAIN, "", INDENT_KEY, do_indent, 0);
 	add_to_sclist(MMAIN, "M-{", 0, do_unindent, 0);
 	add_to_sclist(MMAIN, "Sh-Tab", SHIFT_TAB, do_unindent, 0);
 	add_to_sclist(MMAIN, "M-:", 0, record_macro, 0);
@@ -1369,7 +1358,9 @@ void shortcut_init(void)
 #ifndef NANO_TINY
 	add_to_sclist(MMAIN, "M-T", 0, cut_till_eof, 0);
 	add_to_sclist(MEXECUTE, "^V", 0, cut_till_eof, 0);
-	add_to_sclist(MMAIN, "M-D", 0, do_wordlinechar_count, 0);
+	add_to_sclist(MEXECUTE, "^Z", 0, do_suspend, 0);
+	add_to_sclist(MMAIN, "^Z", 0, suggest_ctrlT_ctrlZ, 0);
+	add_to_sclist(MMAIN, "M-D", 0, count_lines_words_and_characters, 0);
 #else
 	add_to_sclist(MMAIN, "M-H", 0, do_help, 0);
 #endif
@@ -1384,37 +1375,34 @@ void shortcut_init(void)
 		add_to_sclist(MMOST|MBROWSER|MHELP|MYESNO, "^L", 0, full_refresh, 0);
 	else
 		add_to_sclist(MMOST|MBROWSER|MYESNO, "^L", 0, full_refresh, 0);
-	add_to_sclist(MMAIN|MEXECUTE, "^Z", 0, do_suspend_void, 0);
 
 #ifndef NANO_TINY
 	/* Group of "Appearance" toggles. */
-	add_to_sclist((MMOST|MBROWSER|MYESNO) & ~MFINDINHELP, "M-X", 0, do_toggle_void, NO_HELP);
-	add_to_sclist(MMAIN, "M-C", 0, do_toggle_void, CONSTANT_SHOW);
-	add_to_sclist(MMAIN, "M-S", 0, do_toggle_void, SOFTWRAP);
-	add_to_sclist(MMAIN, "M-$", 0, do_toggle_void, SOFTWRAP);
+	add_to_sclist(MMAIN, "M-Z", 0, do_toggle, ZERO);
+	add_to_sclist((MMOST|MBROWSER|MYESNO) & ~MFINDINHELP, "M-X", 0, do_toggle, NO_HELP);
+	add_to_sclist(MMAIN, "M-C", 0, do_toggle, CONSTANT_SHOW);
+	add_to_sclist(MMAIN, "M-S", 0, do_toggle, SOFTWRAP);
+	add_to_sclist(MMAIN, "M-$", 0, do_toggle, SOFTWRAP);  /* Legacy keystroke. */
 #ifdef ENABLE_LINENUMBERS
-	add_to_sclist(MMAIN, "M-N", 0, do_toggle_void, LINE_NUMBERS);
-	add_to_sclist(MMAIN, "M-#", 0, do_toggle_void, LINE_NUMBERS);
+	add_to_sclist(MMAIN, "M-N", 0, do_toggle, LINE_NUMBERS);
+	add_to_sclist(MMAIN, "M-#", 0, do_toggle, LINE_NUMBERS);  /* Legacy keystroke. */
 #endif
-	add_to_sclist(MMAIN, "M-P", 0, do_toggle_void, WHITESPACE_DISPLAY);
+	add_to_sclist(MMAIN, "M-P", 0, do_toggle, WHITESPACE_DISPLAY);
 #ifdef ENABLE_COLOR
-	add_to_sclist(MMAIN, "M-Y", 0, do_toggle_void, NO_SYNTAX);
+	add_to_sclist(MMAIN, "M-Y", 0, do_toggle, NO_SYNTAX);
 #endif
 
-	/* Group of "Editing-behavior" toggles. */
-	add_to_sclist(MMAIN, "M-H", 0, do_toggle_void, SMART_HOME);
-	add_to_sclist(MMAIN, "M-I", 0, do_toggle_void, AUTOINDENT);
-	add_to_sclist(MMAIN, "M-K", 0, do_toggle_void, CUT_FROM_CURSOR);
+	/* Group of "Behavior" toggles. */
+	add_to_sclist(MMAIN, "M-H", 0, do_toggle, SMART_HOME);
+	add_to_sclist(MMAIN, "M-I", 0, do_toggle, AUTOINDENT);
+	add_to_sclist(MMAIN, "M-K", 0, do_toggle, CUT_FROM_CURSOR);
 #ifdef ENABLE_WRAPPING
-	add_to_sclist(MMAIN, "M-L", 0, do_toggle_void, BREAK_LONG_LINES);
+	add_to_sclist(MMAIN, "M-L", 0, do_toggle, BREAK_LONG_LINES);
 #endif
-	add_to_sclist(MMAIN, "M-O", 0, do_toggle_void, TABS_TO_SPACES);
-
-	/* Group of "Peripheral-feature" toggles. */
+	add_to_sclist(MMAIN, "M-O", 0, do_toggle, TABS_TO_SPACES);
 #ifdef ENABLE_MOUSE
-	add_to_sclist(MMAIN, "M-M", 0, do_toggle_void, USE_MOUSE);
+	add_to_sclist(MMAIN, "M-M", 0, do_toggle, USE_MOUSE);
 #endif
-	add_to_sclist(MMAIN, "M-Z", 0, do_toggle_void, SUSPENDABLE);
 #endif /* !NANO_TINY */
 
 	add_to_sclist(((MMOST & ~MMAIN) | MYESNO), "^C", 0, do_cancel, 0);
@@ -1425,17 +1413,17 @@ void shortcut_init(void)
 	add_to_sclist(MWHEREIS|MREPLACE, "^R", 0, flip_replace, 0);
 	add_to_sclist(MWHEREIS|MGOTOLINE, "^T", 0, flip_goto, 0);
 #ifdef ENABLE_HISTORIES
-	add_to_sclist(MWHEREIS|MREPLACE|MREPLACEWITH|MWHEREISFILE|MFINDINHELP|MEXECUTE, "^P", 0, get_history_older_void, 0);
-	add_to_sclist(MWHEREIS|MREPLACE|MREPLACEWITH|MWHEREISFILE|MFINDINHELP|MEXECUTE, "^N", 0, get_history_newer_void, 0);
+	add_to_sclist(MWHEREIS|MREPLACE|MREPLACEWITH|MWHEREISFILE|MFINDINHELP|MEXECUTE, "^P", 0, get_older_item, 0);
+	add_to_sclist(MWHEREIS|MREPLACE|MREPLACEWITH|MWHEREISFILE|MFINDINHELP|MEXECUTE, "^N", 0, get_newer_item, 0);
 #ifdef ENABLE_UTF8
 	if (using_utf8()) {
-		add_to_sclist(MWHEREIS|MREPLACE|MREPLACEWITH|MWHEREISFILE|MFINDINHELP|MEXECUTE, "\xE2\x96\xb4", KEY_UP, get_history_older_void, 0);
-		add_to_sclist(MWHEREIS|MREPLACE|MREPLACEWITH|MWHEREISFILE|MFINDINHELP|MEXECUTE, "\xE2\x96\xbe", KEY_DOWN, get_history_newer_void, 0);
+		add_to_sclist(MWHEREIS|MREPLACE|MREPLACEWITH|MWHEREISFILE|MFINDINHELP|MEXECUTE, "\xE2\x96\xb4", KEY_UP, get_older_item, 0);
+		add_to_sclist(MWHEREIS|MREPLACE|MREPLACEWITH|MWHEREISFILE|MFINDINHELP|MEXECUTE, "\xE2\x96\xbe", KEY_DOWN, get_newer_item, 0);
 	} else
 #endif
 	{
-		add_to_sclist(MWHEREIS|MREPLACE|MREPLACEWITH|MWHEREISFILE|MFINDINHELP|MEXECUTE, "Up", KEY_UP, get_history_older_void, 0);
-		add_to_sclist(MWHEREIS|MREPLACE|MREPLACEWITH|MWHEREISFILE|MFINDINHELP|MEXECUTE, "Down", KEY_DOWN, get_history_newer_void, 0);
+		add_to_sclist(MWHEREIS|MREPLACE|MREPLACEWITH|MWHEREISFILE|MFINDINHELP|MEXECUTE, "Up", KEY_UP, get_older_item, 0);
+		add_to_sclist(MWHEREIS|MREPLACE|MREPLACEWITH|MWHEREISFILE|MFINDINHELP|MEXECUTE, "Down", KEY_DOWN, get_newer_item, 0);
 	}
 #endif
 #ifdef ENABLE_JUSTIFY
@@ -1461,14 +1449,14 @@ void shortcut_init(void)
 	if (ISSET(SAVE_ON_EXIT) && !ISSET(PRESERVE))
 		add_to_sclist(MWRITEFILE, "^Q", 0, discard_buffer, 0);
 #ifndef NANO_TINY
-	add_to_sclist(MWRITEFILE, "M-D", 0, dos_format_void, 0);
-	add_to_sclist(MWRITEFILE, "M-M", 0, mac_format_void, 0);
+	add_to_sclist(MWRITEFILE, "M-D", 0, dos_format, 0);
+	add_to_sclist(MWRITEFILE, "M-M", 0, mac_format, 0);
 	/* Only when not in restricted mode, allow Appending, Prepending,
 	 * making backups, and executing a command. */
 	if (!ISSET(RESTRICTED) && !ISSET(VIEW_MODE)) {
-		add_to_sclist(MWRITEFILE, "M-A", 0, append_void, 0);
-		add_to_sclist(MWRITEFILE, "M-P", 0, prepend_void, 0);
-		add_to_sclist(MWRITEFILE, "M-B", 0, backup_file_void, 0);
+		add_to_sclist(MWRITEFILE, "M-A", 0, append_it, 0);
+		add_to_sclist(MWRITEFILE, "M-P", 0, prepend_it, 0);
+		add_to_sclist(MWRITEFILE, "M-B", 0, back_it_up, 0);
 		add_to_sclist(MINSERTFILE|MEXECUTE, "^X", 0, flip_execute, 0);
 	}
 	add_to_sclist(MINSERTFILE, "M-N", 0, flip_convert, 0);
@@ -1504,11 +1492,11 @@ void shortcut_init(void)
 #endif
 	add_to_sclist(MMOST & ~MFINDINHELP, "F1", KEY_F(1), do_help, 0);
 	add_to_sclist(MMAIN|MBROWSER|MHELP, "F2", KEY_F(2), do_exit, 0);
-	add_to_sclist(MMAIN, "F3", KEY_F(3), do_writeout_void, 0);
+	add_to_sclist(MMAIN, "F3", KEY_F(3), do_writeout, 0);
 #ifdef ENABLE_JUSTIFY
 	add_to_sclist(MMAIN, "F4", KEY_F(4), do_justify, 0);
 #endif
-	add_to_sclist(MMAIN, "F5", KEY_F(5), do_insertfile_void, 0);
+	add_to_sclist(MMAIN, "F5", KEY_F(5), do_insertfile, 0);
 	add_to_sclist(MMAIN|MBROWSER|MHELP, "F6", KEY_F(6), do_search_forward, 0);
 	add_to_sclist(MMAIN|MBROWSER|MHELP|MLINTER, "F7", KEY_F(7), do_page_up, 0);
 	add_to_sclist(MMAIN|MBROWSER|MHELP|MLINTER, "F8", KEY_F(8), do_page_down, 0);
@@ -1518,30 +1506,33 @@ void shortcut_init(void)
 #ifdef ENABLE_SPELLER
 	add_to_sclist(MMAIN, "F12", KEY_F(12), do_spell, 0);
 #endif
-#if defined(KEY_CANCEL) && defined(KEY_SUSPEND) && defined(KEY_SIC)
-	add_to_sclist((MMOST & ~MMAIN) | MYESNO, "", KEY_CANCEL, do_cancel, 0);
-	add_to_sclist(MMAIN|MEXECUTE, "", KEY_SUSPEND, do_suspend_void, 0);
-	add_to_sclist(MMAIN, "", KEY_SIC, do_insertfile_void, 0);
-#endif
 #ifndef NANO_TINY
+	add_to_sclist((MMOST & ~MMAIN) | MYESNO, "", KEY_CANCEL, do_cancel, 0);
+	add_to_sclist(MMAIN, "", KEY_SIC, do_insertfile, 0);
 	/* Catch and ignore bracketed paste marker keys. */
 	add_to_sclist(MMOST|MBROWSER|MHELP|MYESNO, "", BRACKETED_PASTE_MARKER, do_nothing, 0);
+#else
+	add_to_sclist(MMOST|MBROWSER|MHELP|MYESNO, "", KEY_FRESH, full_refresh, 0);
 #endif
 }
 
 #ifndef NANO_TINY
 /* Return the textual description that corresponds to the given flag. */
-const char *flagtostr(int flag)
+const char *epithet_of_flag(int flag)
 {
 	switch (flag) {
-		case NO_HELP:
+		case ZERO:
 			/* TRANSLATORS: The next thirteen strings are toggle descriptions;
 			 * they are best kept shorter than 40 characters, but may be longer. */
+			return N_("Hidden interface");
+		case NO_HELP:
 			return N_("Help mode");
 		case CONSTANT_SHOW:
 			return N_("Constant cursor position display");
 		case SOFTWRAP:
 			return N_("Soft wrapping of overlong lines");
+		case LINE_NUMBERS:
+			return N_("Line numbering");
 		case WHITESPACE_DISPLAY:
 			return N_("Whitespace display");
 		case NO_SYNTAX:
@@ -1558,13 +1549,8 @@ const char *flagtostr(int flag)
 			return N_("Conversion of typed tabs to spaces");
 		case USE_MOUSE:
 			return N_("Mouse support");
-		case SUSPENDABLE:
-			return N_("Suspension");
-		case LINE_NUMBERS:
-			return N_("Line numbering");
 		default:
-			die("Bad toggle -- please report a bug\n");
-			return "";
+			return "Ehm...";
 	}
 }
 #endif /* !NANO_TINY */

src/help.c

@@ -1,7 +1,7 @@
 /**************************************************************************
  *   help.c  --  This file is part of GNU nano.                           *
  *                                                                        *
- *   Copyright (C) 2000-2011, 2013-2021 Free Software Foundation, Inc.    *
+ *   Copyright (C) 2000-2011, 2013-2022 Free Software Foundation, Inc.    *
  *   Copyright (C) 2017 Rishabh Dave                                      *
  *   Copyright (C) 2014-2019 Benno Schulenberg                            *
  *                                                                        *
@@ -234,8 +234,8 @@ void help_init(void)
 		size_t onoff_len = strlen(_("enable/disable"));
 
 		for (s = sclist; s != NULL; s = s->next)
-			if (s->func == do_toggle_void)
-				allocsize += strlen(_(flagtostr(s->toggle))) + onoff_len + 9;
+			if (s->func == do_toggle)
+				allocsize += strlen(_(epithet_of_flag(s->toggle))) + onoff_len + 9;
 	}
 #endif
 
@@ -303,8 +303,9 @@ void help_init(void)
 			for (s = sclist; s != NULL; s = s->next)
 				if (s->toggle && s->ordinal == counter) {
 					ptr += sprintf(ptr, "%s\t\t %s %s\n", (s->menus & MMAIN ? s->keystr : ""),
-								_(flagtostr(s->toggle)), _("enable/disable"));
-					if (s->toggle == NO_SYNTAX || s->toggle == TABS_TO_SPACES)
+								_(epithet_of_flag(s->toggle)), _("enable/disable"));
+					/* Add a blank like between two groups. */
+					if (s->toggle == NO_SYNTAX)
 						ptr += sprintf(ptr, "\n");
 					break;
 				}
@@ -323,6 +324,13 @@ void wrap_help_text_into_buffer(void)
 
 	make_new_buffer();
 
+	/* Ensure there is a blank line at the top of the text, for esthetics. */
+	if ((ISSET(MINIBAR) || !ISSET(EMPTY_LINE)) && LINES > 6) {
+		openfile->current->data = mallocstrcpy(openfile->current->data, " ");
+		openfile->current->next = make_new_node(openfile->current);
+		openfile->current = openfile->current->next;
+	}
+
 	/* Copy the help text into the just-created new buffer. */
 	while (*ptr != '\0') {
 		int length, shim;
@@ -403,8 +411,9 @@ void show_help(void)
 	memcpy(stash, flags, sizeof(flags));
 
 	/* Ensure that the help screen's shortcut list can be displayed. */
-	if (ISSET(NO_HELP) && LINES > 4) {
+	if (ISSET(NO_HELP) || ISSET(ZERO)) {
 		UNSET(NO_HELP);
+		UNSET(ZERO);
 		window_init();
 	} else
 		blank_statusbar();
@@ -415,10 +424,8 @@ void show_help(void)
 	UNSET(USE_REGEXP);
 
 	UNSET(WHITESPACE_DISPLAY);
-	UNSET(NOREAD_MODE);
 
 #ifdef ENABLE_LINENUMBERS
-	UNSET(LINE_NUMBERS);
 	editwincols = COLS - thebar;
 	margin = 0;
 #endif
@@ -456,13 +463,12 @@ void show_help(void)
 		focusing = TRUE;
 
 		/* Show the cursor when we searched and found something. */
-		kbinput = get_kbinput(edit, didfind == 1 || ISSET(SHOW_CURSOR));
+		kbinput = get_kbinput(midwin, didfind == 1 || ISSET(SHOW_CURSOR));
 
 		didfind = 0;
 
 #ifndef NANO_TINY
 		spotlighted = FALSE;
-		hide_cursor = FALSE;
 
 		if (bracketed_paste || kbinput == BRACKETED_PASTE_MARKER) {
 			beep();
@@ -543,13 +549,12 @@ void show_help(void)
 
 	curs_set(0);
 
-	if (ISSET(NO_HELP)) {
-		currmenu = oldmenu;
+	if (ISSET(NO_HELP) || ISSET(ZERO))
 		window_init();
-	} else {
+	else
 		blank_statusbar();
-		bottombars(oldmenu);
-	}
+
+	bottombars(oldmenu);
 
 #ifdef ENABLE_BROWSER
 	if (oldmenu & (MBROWSER|MWHEREISFILE|MGOTODIR))

src/history.c

@@ -1,7 +1,7 @@
 /**************************************************************************
  *   history.c  --  This file is part of GNU nano.                        *
  *                                                                        *
- *   Copyright (C) 2003-2011, 2013-2021 Free Software Foundation, Inc.    *
+ *   Copyright (C) 2003-2011, 2013-2022 Free Software Foundation, Inc.    *
  *   Copyright (C) 2016, 2017, 2019 Benno Schulenberg                     *
  *                                                                        *
  *   GNU nano is free software: you can redistribute it and/or modify     *
@@ -63,21 +63,21 @@ void history_init(void)
 	executebot = execute_history;
 }
 
-/* Set the current position in the given history list to the bottom. */
-void history_reset(const linestruct *list)
+/* Reset the pointer into the history list that contains item to the bottom. */
+void reset_history_pointer_for(const linestruct *item)
 {
-	if (list == search_history)
+	if (item == search_history)
 		search_history = searchbot;
-	else if (list == replace_history)
+	else if (item == replace_history)
 		replace_history = replacebot;
-	else if (list == execute_history)
+	else if (item == execute_history)
 		execute_history = executebot;
 }
 
 /* Return from the history list that starts at start and ends at end
  * the first node that contains the first len characters of the given
  * text, or NULL if there is no such node. */
-linestruct *find_history(const linestruct *start, const linestruct *end,
+linestruct *find_in_history(const linestruct *start, const linestruct *end,
 		const char *text, size_t len)
 {
 	const linestruct *item;
@@ -92,9 +92,10 @@ linestruct *find_history(const linestruct *start, const linestruct *end,
 
 /* Update a history list (the one in which item is the current position)
  * with a fresh string text.  That is: add text, or move it to the end. */
-void update_history(linestruct **item, const char *text)
+void update_history(linestruct **item, const char *text, bool avoid_duplicates)
 {
-	linestruct **htop = NULL, **hbot = NULL, *thesame;
+	linestruct **htop = NULL, **hbot = NULL;
+	linestruct *thesame = NULL;
 
 	if (*item == search_history) {
 		htop = &searchtop;
@@ -107,11 +108,12 @@ void update_history(linestruct **item, const char *text)
 		hbot = &executebot;
 	}
 
-	/* See if the string is already in the history. */
-	thesame = find_history(*hbot, *htop, text, HIGHEST_POSITIVE);
+	/* When requested, check if the string is already in the history. */
+	if (avoid_duplicates)
+		thesame = find_in_history(*hbot, *htop, text, HIGHEST_POSITIVE);
 
 	/* If an identical string was found, delete that item. */
-	if (thesame != NULL) {
+	if (thesame) {
 		linestruct *after = thesame->next;
 
 		/* If the string is at the head of the list, move the head. */
@@ -145,98 +147,67 @@ void update_history(linestruct **item, const char *text)
 	*item = *hbot;
 }
 
-/* Move h to the string in the history list just before it, and return
- * that string.  If there isn't one, don't move h and return NULL. */
-char *get_history_older(linestruct **h)
-{
-	if ((*h)->prev == NULL)
-		return NULL;
-
-	*h = (*h)->prev;
-
-	return (*h)->data;
-}
-
-/* Move h to the string in the history list just after it, and return
- * that string.  If there isn't one, don't move h and return NULL. */
-char *get_history_newer(linestruct **h)
-{
-	if ((*h)->next == NULL)
-		return NULL;
-
-	*h = (*h)->next;
-
-	return (*h)->data;
-}
-
-/* Two empty placeholder functions. */
-void get_history_older_void(void)
-{
-}
-void get_history_newer_void(void)
-{
-}
-
 #ifdef ENABLE_TABCOMP
-/* Go backward through one of three history lists, starting at its item h,
- * searching for a string that is a tab completion of the given string s,
- * looking at only the first len characters of s.  When found, make h point
- * at it and return that string; otherwise, don't move h and return s. */
-char *get_history_completion(linestruct **h, char *s, size_t len)
+/* Go backward through one of three history lists, starting at item *here,
+ * searching for a string that is a tab completion of the given string,
+ * looking at only its first len characters.  When found, make *here point
+ * at the item and return its string; otherwise, just return the string. */
+char *get_history_completion(linestruct **here, char *string, size_t len)
 {
-	linestruct *htop = NULL, *hbot = NULL, *p;
+	linestruct *htop = NULL, *hbot = NULL;
+	linestruct *item;
 
-	if (*h == search_history) {
+	if (*here == search_history) {
 		htop = searchtop;
 		hbot = searchbot;
-	} else if (*h == replace_history) {
+	} else if (*here == replace_history) {
 		htop = replacetop;
 		hbot = replacebot;
-	} else if (*h == execute_history) {
+	} else if (*here == execute_history) {
 		htop = executetop;
 		hbot = executebot;
 	}
 
 	/* First search from the current position to the top of the list
 	 * for a match of len characters.  Skip over an exact match. */
-	p = find_history((*h)->prev, htop, s, len);
+	item = find_in_history((*here)->prev, htop, string, len);
 
-	while (p != NULL && strcmp(p->data, s) == 0)
-		p = find_history(p->prev, htop, s, len);
+	while (item != NULL && strcmp(item->data, string) == 0)
+		item = find_in_history(item->prev, htop, string, len);
 
-	if (p != NULL) {
-		*h = p;
-		return mallocstrcpy(s, (*h)->data);
+	if (item) {
+		*here = item;
+		return mallocstrcpy(string, item->data);
 	}
 
 	/* Now search from the bottom of the list to the original position. */
-	p = find_history(hbot, *h, s, len);
+	item = find_in_history(hbot, *here, string, len);
 
-	while (p != NULL && strcmp(p->data, s) == 0)
-		p = find_history(p->prev, *h, s, len);
+	while (item != NULL && strcmp(item->data, string) == 0)
+		item = find_in_history(item->prev, *here, string, len);
 
-	if (p != NULL) {
-		*h = p;
-		return mallocstrcpy(s, (*h)->data);
+	if (item) {
+		*here = item;
+		return mallocstrcpy(string, item->data);
 	}
 
 	/* When no useful match was found, simply return the given string. */
-	return (char *)s;
+	return (char *)string;
 }
 #endif /* ENABLE_TABCOMP */
 
 /* Check whether we have or could make a directory for history files. */
 bool have_statedir(void)
 {
-	struct stat dirstat;
 	const char *xdgdatadir;
+	struct stat dirinfo;
 
 	get_homedir();
 
 	if (homedir != NULL) {
 		statedir = concatenate(homedir, "/.nano/");
 
-		if (stat(statedir, &dirstat) == 0 && S_ISDIR(dirstat.st_mode)) {
+		if (stat(statedir, &dirinfo) == 0 && S_ISDIR(dirinfo.st_mode)) {
 			poshistname = concatenate(statedir, POSITION_HISTORY);
 			return TRUE;
 		}
@@ -253,7 +224,7 @@ bool have_statedir(void)
 	else
 		statedir = concatenate(homedir, "/.local/share/nano/");
 
-	if (stat(statedir, &dirstat) == -1) {
+	if (stat(statedir, &dirinfo) == -1) {
 		if (xdgdatadir == NULL) {
 			char *statepath = concatenate(homedir, "/.local");
 			mkdir(statepath, S_IRWXU | S_IRWXG | S_IRWXO);
@@ -269,7 +240,7 @@ bool have_statedir(void)
 								statedir, strerror(errno));
 			return FALSE;
 		}
-	} else if (!S_ISDIR(dirstat.st_mode)) {
+	} else if (!S_ISDIR(dirinfo.st_mode)) {
 		jot_error(N_("Path %s is not a directory and needs to be.\n"
 								"Nano will be unable to load or save "
 								"search history or cursor positions.\n"),
@@ -309,7 +280,7 @@ void load_history(void)
 		stanza[--read] = '\0';
 		if (read > 0) {
 			recode_NUL_to_LF(stanza, read);
-			update_history(history, stanza);
+			update_history(history, stanza, IGNORE_DUPLICATES);
 		} else if (history == &search_history)
 			history = &replace_history;
 		else
@@ -394,12 +365,14 @@ void load_poshistory(void)
 	if (histfile == NULL)
 		return;
 
-	ssize_t read, count = 0;
-	struct stat fileinfo;
-	poshiststruct *record_ptr = NULL, *newrecord;
+	poshiststruct *lastitem = NULL;
+	poshiststruct *newitem;
 	char *lineptr, *columnptr;
 	char *stanza = NULL;
+	struct stat fileinfo;
 	size_t dummy = 0;
+	ssize_t count = 0;
+	ssize_t read;
 
 	/* Read and parse each line, and store the extracted data. */
 	while ((read = getline(&stanza, &dummy, histfile)) > 5) {
@@ -419,19 +392,19 @@ void load_poshistory(void)
 		*(lineptr++) = '\0';
 
 		/* Create a new position record. */
-		newrecord = nmalloc(sizeof(poshiststruct));
-		newrecord->filename = copy_of(stanza);
-		newrecord->linenumber = atoi(lineptr);
-		newrecord->columnnumber = atoi(columnptr);
-		newrecord->next = NULL;
+		newitem = nmalloc(sizeof(poshiststruct));
+		newitem->filename = copy_of(stanza);
+		newitem->linenumber = atoi(lineptr);
+		newitem->columnnumber = atoi(columnptr);
+		newitem->next = NULL;
 
 		/* Add the record to the list. */
 		if (position_history == NULL)
-			position_history = newrecord;
+			position_history = newitem;
 		else
-			record_ptr->next = newrecord;
+			lastitem->next = newitem;
 
-		record_ptr = newrecord;
+		lastitem = newitem;
 
 		/* Impose a limit, so the file will not grow indefinitely. */
 		if (++count > 200) {
@@ -456,9 +429,9 @@ void load_poshistory(void)
 /* Save the recorded cursor positions for files that were edited. */
 void save_poshistory(void)
 {
-	poshiststruct *posptr;
-	struct stat fileinfo;
 	FILE *histfile = fopen(poshistname, "wb");
+	struct stat fileinfo;
+	poshiststruct *item;
 
 	if (histfile == NULL) {
 		jot_error(N_("Error writing %s: %s"), poshistname, strerror(errno));
@@ -469,15 +442,15 @@ void save_poshistory(void)
 	if (chmod(poshistname, S_IRUSR | S_IWUSR) < 0)
 		jot_error(N_("Cannot limit permissions on %s: %s"), poshistname, strerror(errno));
 
-	for (posptr = position_history; posptr != NULL; posptr = posptr->next) {
+	for (item = position_history; item != NULL; item = item->next) {
 		char *path_and_place;
 		size_t length;
 
 		/* Assume 20 decimal positions each for line and column number,
 		 * plus two spaces, plus the line feed, plus the null byte. */
-		path_and_place = nmalloc(strlen(posptr->filename) + 44);
+		path_and_place = nmalloc(strlen(item->filename) + 44);
 		sprintf(path_and_place, "%s %zd %zd\n",
-								posptr->filename, posptr->linenumber, posptr->columnnumber);
+								item->filename, item->linenumber, item->columnnumber);
 		length = strlen(path_and_place);
 
 		/* Encode newlines in filenames as NULs. */
@@ -501,29 +474,30 @@ void save_poshistory(void)
 /* Reload the position history file if it has been modified since last load. */
 void reload_positions_if_needed(void)
 {
+	poshiststruct *item, *nextone;
 	struct stat fileinfo;
 
-	if (stat(poshistname, &fileinfo) == 0 && fileinfo.st_mtime != latest_timestamp) {
-		poshiststruct *item, *nextone;
+	if (stat(poshistname, &fileinfo) != 0 || fileinfo.st_mtime == latest_timestamp)
+		return;
 
-		for (item = position_history; item != NULL; item = nextone) {
-			nextone = item->next;
-			free(item->filename);
-			free(item);
-		}
-
-		position_history = NULL;
-
-		load_poshistory();
+	for (item = position_history; item != NULL; item = nextone) {
+		nextone = item->next;
+		free(item->filename);
+		free(item);
 	}
+
+	position_history = NULL;
+
+	load_poshistory();
 }
 
 /* Update the recorded last file positions with the current position in the
  * current buffer.  If no existing entry is found, add a new one at the end. */
 void update_poshistory(void)
 {
-	poshiststruct *posptr, *theone, *posprev = NULL;
 	char *fullpath = get_full_path(openfile->filename);
+	poshiststruct *previous = NULL;
+	poshiststruct *item, *theone;
 
 	if (fullpath == NULL || openfile->filename[0] == '\0') {
 		free(fullpath);
@@ -533,28 +507,28 @@ void update_poshistory(void)
 	reload_positions_if_needed();
 
 	/* Look for a matching filename in the list. */
-	for (posptr = position_history; posptr != NULL; posptr = posptr->next) {
-		if (!strcmp(posptr->filename, fullpath))
+	for (item = position_history; item != NULL; item = item->next) {
+		if (!strcmp(item->filename, fullpath))
 			break;
-		posprev = posptr;
+		previous = item;
 	}
 
 	/* Don't record files that have the default cursor position. */
 	if (openfile->current->lineno == 1 && openfile->current_x == 0) {
-		if (posptr != NULL) {
-			if (posprev == NULL)
-				position_history = posptr->next;
+		if (item != NULL) {
+			if (previous == NULL)
+				position_history = item->next;
 			else
-				posprev->next = posptr->next;
-			free(posptr->filename);
-			free(posptr);
+				previous->next = item->next;
+			free(item->filename);
+			free(item);
 			save_poshistory();
 		}
 		free(fullpath);
 		return;
 	}
 
-	theone = posptr;
+	theone = item;
 
 	/* If we didn't find it, make a new node; otherwise, if we're
 	 * not at the end, move the matching one to the end. */
@@ -564,15 +538,15 @@ void update_poshistory(void)
 		if (position_history == NULL)
 			position_history = theone;
 		else
-			posprev->next = theone;
-	} else if (posptr->next != NULL) {
-		if (posprev == NULL)
-			position_history = posptr->next;
+			previous->next = theone;
+	} else if (item->next != NULL) {
+		if (previous == NULL)
+			position_history = item->next;
 		else
-			posprev->next = posptr->next;
-		while (posptr->next != NULL)
-			posptr = posptr->next;
-		posptr->next = theone;
+			previous->next = item->next;
+		while (item->next != NULL)
+			item = item->next;
+		item->next = theone;
 	}
 
 	/* Store the last cursor position. */
@@ -590,25 +564,25 @@ void update_poshistory(void)
  * set line and column to the retrieved values. */
 bool has_old_position(const char *file, ssize_t *line, ssize_t *column)
 {
-	poshiststruct *posptr;
 	char *fullpath = get_full_path(file);
+	poshiststruct *item;
 
 	if (fullpath == NULL)
 		return FALSE;
 
 	reload_positions_if_needed();
 
-	posptr = position_history;
-	while (posptr != NULL && strcmp(posptr->filename, fullpath) != 0)
-		posptr = posptr->next;
+	item = position_history;
+	while (item != NULL && strcmp(item->filename, fullpath) != 0)
+		item = item->next;
 
 	free(fullpath);
 
-	if (posptr == NULL)
+	if (item == NULL)
 		return FALSE;
 
-	*line = posptr->linenumber;
-	*column = posptr->columnnumber;
+	*line = item->linenumber;
+	*column = item->columnnumber;
 	return TRUE;
 }
 #endif /* ENABLE_HISTORIES */

src/move.c

@@ -1,7 +1,7 @@
 /**************************************************************************
  *   move.c  --  This file is part of GNU nano.                           *
  *                                                                        *
- *   Copyright (C) 1999-2011, 2013-2021 Free Software Foundation, Inc.    *
+ *   Copyright (C) 1999-2011, 2013-2022 Free Software Foundation, Inc.    *
  *   Copyright (C) 2014-2018 Benno Schulenberg                            *
  *                                                                        *
  *   GNU nano is free software: you can redistribute it and/or modify     *
@@ -44,6 +44,9 @@ void to_last_line(void)
 	openfile->current_y = editwinrows - 1;
 
 	refresh_needed = TRUE;
+#ifdef ENABLE_COLOR
+	recook |= perturbed;
+#endif
 	focusing = FALSE;
 }
 
@@ -222,6 +225,9 @@ void to_para_end(void)
 		openfile->current_x = strlen(openfile->current->data);
 
 	edit_redraw(was_current, CENTERING);
+#ifdef ENABLE_COLOR
+	recook |= perturbed;
+#endif
 }
 #endif /* ENABLE_JUSTIFY */
 
@@ -263,12 +269,15 @@ void to_next_block(void)
 
 	openfile->current_x = 0;
 	edit_redraw(was_current, CENTERING);
+#ifdef ENABLE_COLOR
+	recook |= perturbed;
+#endif
 }
 
-/* Move to the previous word.  If allow_punct is TRUE, treat punctuation
- * as part of a word. */
-void do_prev_word(bool allow_punct)
+/* Move to the previous word. */
+void do_prev_word(void)
 {
+	bool punctuation_as_letters = ISSET(WORD_BOUNDS);
 	bool seen_a_word = FALSE, step_forward = FALSE;
 
 	/* Move backward until we pass over the start of a word. */
@@ -286,7 +295,7 @@ void do_prev_word(bool allow_punct)
 												openfile->current_x);
 
 		if (is_word_char(openfile->current->data + openfile->current_x,
-								allow_punct)) {
+								punctuation_as_letters)) {
 			seen_a_word = TRUE;
 			/* If at the head of a line now, this surely is a word start. */
 			if (openfile->current_x == 0)
@@ -309,12 +318,12 @@ void do_prev_word(bool allow_punct)
 }
 
 /* Move to the next word.  If after_ends is TRUE, stop at the ends of words
- * instead of their beginnings.  If allow_punct is TRUE, treat punctuation as
- * part of a word.  Return TRUE if we started on a word, and FALSE otherwise. */
-bool do_next_word(bool after_ends, bool allow_punct)
+ * instead of at their beginnings.  Return TRUE if we started on a word. */
+bool do_next_word(bool after_ends)
 {
+	bool punctuation_as_letters = ISSET(WORD_BOUNDS);
 	bool started_on_word = is_word_char(openfile->current->data +
-								openfile->current_x, allow_punct);
+								openfile->current_x, punctuation_as_letters);
 	bool seen_space = !started_on_word;
 #ifndef NANO_TINY
 	bool seen_word = started_on_word;
@@ -341,7 +350,7 @@ bool do_next_word(bool after_ends, bool allow_punct)
 			/* If this is a word character, continue; else it's a separator,
 			 * and if we've already seen a word, then it's a word end. */
 			if (is_word_char(openfile->current->data + openfile->current_x,
-								allow_punct))
+								punctuation_as_letters))
 				seen_word = TRUE;
 #ifdef ENABLE_UTF8
 			else if (is_zerowidth(openfile->current->data + openfile->current_x))
@@ -360,7 +369,7 @@ bool do_next_word(bool after_ends, bool allow_punct)
 			/* If this is not a word character, then it's a separator; else
 			 * if we've already seen a separator, then it's a word start. */
 			if (!is_word_char(openfile->current->data + openfile->current_x,
-								allow_punct))
+								punctuation_as_letters))
 				seen_space = TRUE;
 			else if (seen_space)
 				break;
@@ -370,25 +379,23 @@ bool do_next_word(bool after_ends, bool allow_punct)
 	return started_on_word;
 }
 
-/* Move to the previous word in the file, treating punctuation as part of a
- * word if the WORD_BOUNDS flag is set, and update the screen afterwards. */
+/* Move to the previous word in the file, and update the screen afterwards. */
 void to_prev_word(void)
 {
 	linestruct *was_current = openfile->current;
 
-	do_prev_word(ISSET(WORD_BOUNDS));
+	do_prev_word();
 
 	edit_redraw(was_current, FLOWING);
 }
 
 /* Move to the next word in the file.  If the AFTER_ENDS flag is set, stop
- * at word ends instead of beginnings.  If the WORD_BOUNDS flag is set, treat
- * punctuation as part of a word.  Update the screen afterwards. */
+ * at word ends instead of beginnings.  Update the screen afterwards. */
 void to_next_word(void)
 {
 	linestruct *was_current = openfile->current;
 
-	do_next_word(ISSET(AFTER_ENDS), ISSET(WORD_BOUNDS));
+	do_next_word(ISSET(AFTER_ENDS));
 
 	edit_redraw(was_current, FLOWING);
 }

src/nano.c

@@ -1,7 +1,7 @@
 /**************************************************************************
  *   nano.c  --  This file is part of GNU nano.                           *
  *                                                                        *
- *   Copyright (C) 1999-2011, 2013-2021 Free Software Foundation, Inc.    *
+ *   Copyright (C) 1999-2011, 2013-2022 Free Software Foundation, Inc.    *
  *   Copyright (C) 2014-2021 Benno Schulenberg                            *
  *                                                                        *
  *   GNU nano is free software: you can redistribute it and/or modify     *
@@ -26,7 +26,7 @@
 #include <errno.h>
 #include <fcntl.h>
 #include <getopt.h>
-#if defined(__linux__) || !defined(NANO_TINY)
+#ifdef __linux__
 #include <sys/ioctl.h>
 #endif
 #ifdef ENABLE_UTF8
@@ -212,6 +212,18 @@ bool in_restricted_mode(void)
 		return FALSE;
 }
 
+#ifndef NANO_TINY
+/* Say how the user can achieve suspension (when they typed ^Z). */
+void suggest_ctrlT_ctrlZ(void)
+{
+#ifdef ENABLE_NANORC
+	if (first_sc_for(MMAIN, do_execute) && first_sc_for(MMAIN, do_execute)->keycode == 0x14 &&
+			first_sc_for(MEXECUTE, do_suspend) && first_sc_for(MEXECUTE, do_suspend)->keycode == 0x1A)
+#endif
+		statusline(AHEM, _("To suspend, type ^T^Z"));
+}
+#endif
+
 /* Make sure the cursor is visible, then exit from curses mode, disable
  * bracketed-paste mode, and restore the original terminal settings. */
 void restore_terminal(void)
@@ -231,14 +243,14 @@ void finish(void)
 	/* Blank the status bar and (if applicable) the shortcut list. */
 	blank_statusbar();
 	blank_bottombars();
-	wrefresh(bottomwin);
+	wrefresh(footwin);
 
 #ifndef NANO_TINY
 	/* Deallocate the two or three subwindows. */
 	if (topwin != NULL)
 		delwin(topwin);
-	delwin(edit);
-	delwin(bottomwin);
+	delwin(midwin);
+	delwin(footwin);
 #endif
 	/* Switch the cursor on, exit from curses, and restore terminal settings. */
 	restore_terminal();
@@ -292,20 +304,20 @@ void do_exit(void)
 	/* When unmodified, simply close.  Else, when doing automatic saving
 	 * and the file has a name, simply save.  Otherwise, ask the user. */
 	if (!openfile->modified)
-		choice = 0;
+		choice = NO;
 	else if (ISSET(SAVE_ON_EXIT) && openfile->filename[0] != '\0')
-		choice = 1;
+		choice = YES;
 	else {
 		if (ISSET(SAVE_ON_EXIT))
 			warn_and_briefly_pause(_("No file name"));
 
-		choice = do_yesno_prompt(FALSE, _("Save modified buffer? "));
+		choice = ask_user(YESORNO, _("Save modified buffer? "));
 	}
 
 	/* When not saving, or the save succeeds, close the buffer. */
-	if (choice == 0 || (choice == 1 && do_writeout(TRUE, TRUE) > 0))
+	if (choice == NO || (choice == YES && write_it_out(TRUE, TRUE) > 0))
 		close_and_go();
-	else if (choice != 1)
+	else if (choice != YES)
 		statusbar(_("Cancelled"));
 }
 
@@ -327,7 +339,7 @@ void emergency_save(const char *filename)
 		fprintf(stderr, _("\nToo many .save files\n"));
 	else if (write_file(targetname, NULL, SPECIAL, OVERWRITE, NONOTES)) {
 		fprintf(stderr, _("\nBuffer written to %s\n"), targetname);
-#ifndef NANO_TINY
+#if !defined(NANO_TINY) && defined(HAVE_CHMOD) && defined(HAVE_CHOWN)
 		/* Try to chmod/chown the saved file to the values of the original file,
 		 * but ignore any failure as we are in a hurry to get out. */
 		if (openfile->statinfo) {
@@ -391,46 +403,46 @@ void die(const char *msg, ...)
 void window_init(void)
 {
 	/* When resizing, first delete the existing windows. */
-	if (edit != NULL) {
+	if (midwin != NULL) {
 		if (topwin != NULL)
 			delwin(topwin);
-		delwin(edit);
-		delwin(bottomwin);
+		delwin(midwin);
+		delwin(footwin);
 	}
 
 	topwin = NULL;
 
 	/* If the terminal is very flat, don't set up a title bar. */
 	if (LINES < 3) {
-		editwinrows = 1;
+		editwinrows = (ISSET(ZERO) ? LINES : 1);
 		/* Set up two subwindows.  If the terminal is just one line,
 		 * edit window and status-bar window will cover each other. */
-		edit = newwin(1, COLS, 0, 0);
-		bottomwin = newwin(1, COLS, LINES - 1, 0);
+		midwin = newwin(editwinrows, COLS, 0, 0);
+		footwin = newwin(1, COLS, LINES - 1, 0);
 	} else {
-		int toprows = ((ISSET(EMPTY_LINE) && LINES > 5) ? 2 : 1);
-		int bottomrows = ((ISSET(NO_HELP) || LINES < 5) ? 1 : 3);
+		int toprows = ((ISSET(EMPTY_LINE) && LINES > 6) ? 2 : 1);
+		int bottomrows = ((ISSET(NO_HELP) || LINES < 6) ? 1 : 3);
 
 #ifndef NANO_TINY
-		if (ISSET(MINIBAR))
+		if (ISSET(MINIBAR) || ISSET(ZERO))
 			toprows = 0;
 #endif
-		editwinrows = LINES - toprows - bottomrows;
+		editwinrows = LINES - toprows - bottomrows + (ISSET(ZERO) ? 1 : 0);
 
 		/* Set up the normal three subwindows. */
 		if (toprows > 0)
 			topwin = newwin(toprows, COLS, 0, 0);
-		edit = newwin(editwinrows, COLS, toprows, 0);
-		bottomwin = newwin(bottomrows, COLS, toprows + editwinrows, 0);
+		midwin = newwin(editwinrows, COLS, toprows, 0);
+		footwin = newwin(bottomrows, COLS, LINES - bottomrows, 0);
 	}
 
 	/* In case the terminal shrunk, make sure the status line is clear. */
-	wipe_statusbar();
+	wnoutrefresh(footwin);
 
 	/* When not disabled, turn escape-sequence translation on. */
 	if (!ISSET(RAW_SEQUENCES)) {
-		keypad(edit, TRUE);
-		keypad(bottomwin, TRUE);
+		keypad(midwin, TRUE);
+		keypad(footwin, TRUE);
 	}
 
 #ifdef ENABLED_WRAPORJUSTIFY
@@ -639,12 +651,9 @@ void usage(void)
 	print_opt("-x", "--nohelp", N_("Don't show the two help lines"));
 #ifndef NANO_TINY
 	print_opt("-y", "--afterends", N_("Make Ctrl+Right stop at word ends"));
-#endif
-	if (!ISSET(RESTRICTED))
-		print_opt("-z", "--suspendable", N_("Enable suspension"));
-#ifndef NANO_TINY
 	print_opt("-%", "--stateflags", N_("Show some states on the title bar"));
 	print_opt("-_", "--minibar", N_("Show a feedback bar at the bottom"));
+	print_opt("-0", "--zero", N_("Hide all bars, use whole terminal"));
 #endif
 #ifdef HAVE_LIBMAGIC
 	print_opt("-!", "--magic", N_("Also try magic to determine syntax"));
@@ -661,8 +670,8 @@ void version(void)
 	printf(_(" GNU nano, version %s\n"), VERSION);
 #endif
 #ifndef NANO_TINY
-	printf(" (C) 1999-2011, 2013-2021 Free Software Foundation, Inc.\n");
-	printf(_(" (C) 2014-%s the contributors to nano\n"), "2021");
+	printf(" (C) 1999-2011, 2013-2022 Free Software Foundation, Inc.\n");
+	printf(_(" (C) 2014-%s the contributors to nano\n"), "2022");
 #endif
 	printf(_(" Compiled options:"));
 
@@ -885,20 +894,21 @@ void signal_init(void)
 	sigaction(SIGTERM, &deed, NULL);
 
 #ifndef NANO_TINY
+#ifdef SIGWINCH
 	/* Trap SIGWINCH because we want to handle window resizes. */
 	deed.sa_handler = handle_sigwinch;
 	sigaction(SIGWINCH, &deed, NULL);
 #endif
-
-	/* In the suspend and continue handlers, block all other signals.
-	 * If we don't do this, other stuff interrupts them! */
-	sigfillset(&deed.sa_mask);
 #ifdef SIGTSTP
-	deed.sa_handler = do_suspend;
+	/* Prevent the suspend handler from getting interrupted. */
+	sigfillset(&deed.sa_mask);
+	deed.sa_handler = suspend_nano;
 	sigaction(SIGTSTP, &deed, NULL);
 #endif
+#endif /* !NANO_TINY */
 #ifdef SIGCONT
-	deed.sa_handler = do_continue;
+	sigfillset(&deed.sa_mask);
+	deed.sa_handler = continue_nano;
 	sigaction(SIGCONT, &deed, NULL);
 #endif
 
@@ -929,8 +939,9 @@ void handle_crash(int signal)
 }
 #endif
 
+#ifndef NANO_TINY
 /* Handler for SIGTSTP (suspend). */
-void do_suspend(int signal)
+void suspend_nano(int signal)
 {
 #ifdef ENABLE_MOUSE
 	disable_mouse_support();
@@ -952,20 +963,20 @@ void do_suspend(int signal)
 #endif
 }
 
-/* Put nano to sleep (if suspension is enabled). */
-void do_suspend_void(void)
+/* When permitted, put nano to sleep. */
+void do_suspend(void)
 {
-	if (!ISSET(SUSPENDABLE)) {
-		statusline(AHEM, _("Suspension is not enabled"));
-		beep();
-	} else
-		do_suspend(0);
+	if (in_restricted_mode())
+		return;
+
+	suspend_nano(0);
 
 	ran_a_tool = TRUE;
 }
+#endif /* !NANO_TINY */
 
 /* Handler for SIGCONT (continue after suspend). */
-void do_continue(int signal)
+void continue_nano(int signal)
 {
 #ifdef ENABLE_MOUSE
 	if (ISSET(USE_MOUSE))
@@ -981,18 +992,20 @@ void do_continue(int signal)
 #endif
 
 	/* Insert a fake keystroke, to neutralize a key-eating issue. */
-	ungetch(KEY_FLUSH);
+	ungetch(KEY_FRESH);
 }
 
 #if !defined(NANO_TINY) || defined(ENABLE_SPELLER) || defined(ENABLE_COLOR)
 /* Block or unblock the SIGWINCH signal, depending on the blockit parameter. */
 void block_sigwinch(bool blockit)
 {
+#ifdef SIGWINCH
 	sigset_t winch;
 
 	sigemptyset(&winch);
 	sigaddset(&winch, SIGWINCH);
 	sigprocmask(blockit ? SIG_BLOCK : SIG_UNBLOCK, &winch, NULL);
+#endif
 
 #ifndef NANO_TINY
 	if (the_window_resized)
@@ -1012,38 +1025,19 @@ void handle_sigwinch(int signal)
 /* Reinitialize and redraw the screen completely. */
 void regenerate_screen(void)
 {
-	const char *tty = ttyname(0);
-	int fd, result = 0;
-	struct winsize win;
-
 	/* Reset the trigger. */
 	the_window_resized = FALSE;
 
-	if (tty == NULL)
-		return;
-	fd = open(tty, O_RDWR);
-	if (fd == -1)
-		return;
-	result = ioctl(fd, TIOCGWINSZ, &win);
-	close(fd);
-	if (result == -1)
-		return;
+	/* Leave and immediately reenter curses mode, so that ncurses notices
+	 * the new screen dimensions and sets LINES and COLS accordingly. */
+	endwin();
+	refresh();
 
-	/* We could check whether COLS or LINES changed, and return otherwise,
-	 * but it seems curses does not always update these global variables. */
-#ifdef REDEFINING_MACROS_OK
-	COLS = win.ws_col;
-	LINES = win.ws_row;
-#endif
 	thebar = (ISSET(INDICATOR) && LINES > 5 && COLS > 9) ? 1 : 0;
 	bardata = nrealloc(bardata, LINES * sizeof(int));
 
 	editwincols = COLS - margin - thebar;
 
-	/* Do as the website suggests: leave and immediately reenter curses mode. */
-	endwin();
-	doupdate();
-
 	/* Put the terminal in the desired state again, and
 	 * recreate the subwindows with their (new) sizes. */
 	terminal_init();
@@ -1056,25 +1050,35 @@ void regenerate_screen(void)
 	}
 }
 
-/* Handle the global toggle specified in flag. */
-void do_toggle(int flag)
+/* Invert the given global flag and adjust things for its new value. */
+void toggle_this(int flag)
 {
-	if (flag == SUSPENDABLE && in_restricted_mode())
-		return;
+	bool enabled = !ISSET(flag);
 
 	TOGGLE(flag);
 	focusing = FALSE;
 
 	switch (flag) {
+		case ZERO:
+			window_init();
+			draw_all_subwindows();
+			return;
 		case NO_HELP:
+			if (LINES < 6) {
+				statusline(AHEM, _("Too tiny"));
+				TOGGLE(flag);
+				return;
+			}
 			window_init();
 			draw_all_subwindows();
 			break;
-#ifdef ENABLE_MOUSE
-		case USE_MOUSE:
-			mouse_init();
-			break;
-#endif
+		case CONSTANT_SHOW:
+			if (ISSET(ZERO) || LINES == 1) {
+				statusline(AHEM, _("Not possible"));
+				TOGGLE(flag);
+			} else if (!ISSET(MINIBAR))
+				wipe_statusbar();
+			return;
 		case SOFTWRAP:
 			if (!ISSET(SOFTWRAP))
 				openfile->firstcolumn = 0;
@@ -1089,30 +1093,37 @@ void do_toggle(int flag)
 			precalc_multicolorinfo();
 			refresh_needed = TRUE;
 			break;
+		case TABS_TO_SPACES:
+			if (openfile->syntax && openfile->syntax->tab) {
+				statusline(AHEM, _("Current syntax determines Tab"));
+				TOGGLE(flag);
+				return;
+			}
+			break;
+#endif
+#ifdef ENABLE_MOUSE
+		case USE_MOUSE:
+			mouse_init();
+			break;
 #endif
 	}
 
-	if (!ISSET(MINIBAR) && ISSET(STATEFLAGS))
-		if (flag == AUTOINDENT || flag == BREAK_LONG_LINES || flag == SOFTWRAP)
+	if (flag == AUTOINDENT || flag == BREAK_LONG_LINES || flag == SOFTWRAP) {
+		if (ISSET(MINIBAR) && !ISSET(ZERO) && ISSET(STATEFLAGS))
+			return;
+		if (ISSET(STATEFLAGS))
 			titlebar(NULL);
-
-	if (ISSET(MINIBAR) && (flag == NO_HELP || flag == LINE_NUMBERS))
-		return;
-
-	if (flag == CONSTANT_SHOW)
-		wipe_statusbar();
-	else if (!ISSET(MINIBAR) || !ISSET(STATEFLAGS) || flag == SMART_HOME ||
-						flag == NO_SYNTAX || flag == WHITESPACE_DISPLAY ||
-						flag == CUT_FROM_CURSOR || flag == TABS_TO_SPACES ||
-						flag == USE_MOUSE || flag == SUSPENDABLE) {
-		bool enabled = ISSET(flag);
-
-		if (flag == NO_HELP || flag == NO_SYNTAX)
-			enabled = !enabled;
-
-		statusline(REMARK, "%s %s", _(flagtostr(flag)),
-									enabled ? _("enabled") : _("disabled"));
 	}
+
+	if (flag == NO_HELP || flag == LINE_NUMBERS || flag == WHITESPACE_DISPLAY)
+		if (ISSET(MINIBAR) || ISSET(ZERO) || LINES == 1)
+			return;
+
+	if (flag == NO_HELP || flag == NO_SYNTAX)
+		enabled = !enabled;
+
+	statusline(REMARK, "%s %s", _(epithet_of_flag(flag)),
+									enabled ? _("enabled") : _("disabled"));
 }
 #endif /* !NANO_TINY */
 
@@ -1240,8 +1251,9 @@ void confirm_margin(void)
 #ifndef NANO_TINY
 		/* Ensure a proper starting column for the first screen row. */
 		ensure_firstcolumn_is_aligned();
-		focusing = keep_focus;
 #endif
+		focusing = keep_focus;
+
 		/* The margin has changed -- schedule a full refresh. */
 		refresh_needed = TRUE;
 	}
@@ -1255,6 +1267,11 @@ void unbound_key(int code)
 		/* TRANSLATORS: This refers to a sequence of escape codes
 		 * (from the keyboard) that nano does not recognize. */
 		statusline(AHEM, _("Unknown sequence"));
+#ifndef NANO_TINY
+	else if (code > KEY_F0 && code < KEY_F0 + 25)
+		/* TRANSLATORS: This refers to an unbound function key. */
+		statusline(AHEM, _("Unbound key: F%i"), code - KEY_F0);
+#endif
 	else if (code > 0x7F)
 		statusline(AHEM, _("Unbound key"));
 	else if (meta_key) {
@@ -1292,7 +1309,7 @@ int do_mouse(void)
 		return retval;
 
 	/* If the click was in the edit window, put the cursor in that spot. */
-	if (wmouse_trafo(edit, &click_row, &click_col, FALSE)) {
+	if (wmouse_trafo(midwin, &click_row, &click_col, FALSE)) {
 		linestruct *current_save = openfile->current;
 		ssize_t row_count = click_row - openfile->current_y;
 		size_t leftedge;
@@ -1375,7 +1392,7 @@ void suck_up_input_and_paste_it(void)
 	cutbuffer = line;
 
 	while (bracketed_paste) {
-		int input = get_kbinput(edit, BLIND);
+		int input = get_kbinput(midwin, BLIND);
 
 		if (input == '\r' || input == '\n') {
 			line->next = make_new_node(line);
@@ -1465,9 +1482,8 @@ void inject(char *burst, size_t count)
 #endif
 
 #ifdef ENABLE_WRAPPING
-	/* Wrap the line when needed, and if so, schedule a refresh. */
-	if (ISSET(BREAK_LONG_LINES) && do_wrap())
-		refresh_needed = TRUE;
+	if (ISSET(BREAK_LONG_LINES))
+		do_wrap();
 #endif
 
 #ifndef NANO_TINY
@@ -1508,10 +1524,9 @@ void process_a_keystroke(void)
 	const keystruct *shortcut;
 
 	/* Read in a keystroke, and show the cursor while waiting. */
-	input = get_kbinput(edit, VISIBLE);
+	input = get_kbinput(midwin, VISIBLE);
 
 	lastmessage = VACUUM;
-	hide_cursor = FALSE;
 
 #ifndef NANO_TINY
 	if (input == KEY_WINCH)
@@ -1522,7 +1537,7 @@ void process_a_keystroke(void)
 		/* If the user clicked on a shortcut, read in the key code that it was
 		 * converted into.  Else the click has been handled or was invalid. */
 		if (do_mouse() == 1)
-			input = get_kbinput(edit, BLIND);
+			input = get_kbinput(midwin, BLIND);
 		else
 			return;
 	}
@@ -1552,7 +1567,7 @@ void process_a_keystroke(void)
 
 	/* If we have a command, or if there aren't any other key codes waiting,
 	 * it's time to insert the gathered bytes into the edit buffer. */
-	if ((shortcut || get_key_buffer_len() == 0) && puddle != NULL) {
+	if ((shortcut || waiting_keycodes() == 0) && puddle != NULL) {
 		puddle[depth] = '\0';
 
 		inject(puddle, depth);
@@ -1599,8 +1614,8 @@ void process_a_keystroke(void)
 	}
 #endif
 #ifndef NANO_TINY
-	if (shortcut->func == do_toggle_void) {
-		do_toggle(shortcut->toggle);
+	if (shortcut->func == do_toggle) {
+		toggle_this(shortcut->toggle);
 		if (shortcut->toggle == CUT_FROM_CURSOR)
 			keep_cutbuffer = FALSE;
 		return;
@@ -1727,7 +1742,7 @@ int main(int argc, char **argv)
 		{"nowrap", 0, NULL, 'w'},
 #endif
 		{"nohelp", 0, NULL, 'x'},
-		{"suspendable", 0, NULL, 'z'},
+		{"suspendable", 0, NULL, 'z'},  /* Obsolete; remove in 2022. */
 #ifndef NANO_TINY
 		{"smarthome", 0, NULL, 'A'},
 		{"backup", 0, NULL, 'B'},
@@ -1756,6 +1771,7 @@ int main(int argc, char **argv)
 		{"afterends", 0, NULL, 'y'},
 		{"stateflags", 0, NULL, '%'},
 		{"minibar", 0, NULL, '_'},
+		{"zero", 0, NULL, '0'},
 #endif
 #ifdef HAVE_LIBMAGIC
 		{"magic", 0, NULL, '!'},
@@ -1773,10 +1789,12 @@ int main(int argc, char **argv)
 	/* Back up the terminal settings so that they can be restored. */
 	tcgetattr(STDIN_FILENO, &original_state);
 
+#if defined(F_GETFL) && defined(F_SETFL)
 	/* Get the state of standard input and ensure it uses blocking mode. */
 	stdin_flags = fcntl(STDIN_FILENO, F_GETFL, 0);
 	if (stdin_flags != -1)
 		fcntl(STDIN_FILENO, F_SETFL, stdin_flags & ~O_NONBLOCK);
+#endif
 
 #ifdef ENABLE_UTF8
 	/* If setting the locale is successful and it uses UTF-8, we will
@@ -1799,7 +1817,7 @@ int main(int argc, char **argv)
 	if (*(tail(argv[0])) == 'r')
 		SET(RESTRICTED);
 
-	while ((optchr = getopt_long(argc, argv, "ABC:DEFGHIJ:KLMNOPQ:RST:UVWX:Y:Z"
+	while ((optchr = getopt_long(argc, argv, "0ABC:DEFGHIJ:KLMNOPQ:RST:UVWX:Y:Z"
 				"abcdef:ghijklmno:pqr:s:tuvwxyz$%_!", long_options, NULL)) != -1) {
 		switch (optchr) {
 #ifndef NANO_TINY
@@ -2034,7 +2052,6 @@ int main(int argc, char **argv)
 				break;
 #endif
 			case 'z':
-				SET(SUSPENDABLE);
 				break;
 #ifndef NANO_TINY
 			case '%':
@@ -2043,6 +2060,9 @@ int main(int argc, char **argv)
 			case '_':
 				SET(MINIBAR);
 				break;
+			case '0':
+				SET(ZERO);
+				break;
 #endif
 #ifdef HAVE_LIBMAGIC
 			case '!':
@@ -2057,7 +2077,7 @@ int main(int argc, char **argv)
 
 	/* Curses needs TERM; if it is unset, try falling back to a VT220. */
 	if (getenv("TERM") == NULL)
-		setenv("TERM", "vt220", 0);
+		putenv("TERM=vt220");
 
 	/* Enter into curses mode.  Abort if this fails. */
 	if (initscr() == NULL)
@@ -2067,6 +2087,9 @@ int main(int argc, char **argv)
 	/* If the terminal can do colors, tell ncurses to switch them on. */
 	if (has_colors())
 		start_color();
+
+	/* When requested, suppress the default spotlight and error colors. */
+	rescind_colors = (getenv("NO_COLOR") != NULL);
 #endif
 
 	/* Set up the function and shortcut lists.  This needs to be done
@@ -2178,11 +2201,10 @@ int main(int argc, char **argv)
 	if (ISSET(BOLD_TEXT))
 		hilite_attribute = A_BOLD;
 
-	/* When in restricted mode, disable backups, suspending, and history files,
-	 * since they allow writing to files not specified on the command line. */
+	/* When in restricted mode, disable backups and history files, since they
+	 * would allow writing to files not specified on the command line. */
 	if (ISSET(RESTRICTED)) {
 		UNSET(MAKE_BACKUP);
-		UNSET(SUSPENDABLE);
 #ifdef ENABLE_NANORC
 		UNSET(HISTORYLOG);
 		UNSET(POSITIONLOG);
@@ -2193,6 +2215,10 @@ int main(int argc, char **argv)
 	if (ISSET(RAW_SEQUENCES))
 		UNSET(USE_MOUSE);
 
+	/* When suppressing title bar or minibar, suppress also the help lines. */
+	if (ISSET(ZERO))
+		SET(NO_HELP);
+
 #ifdef ENABLE_HISTORIES
 	/* Initialize the pointers for the Search/Replace/Execute histories. */
 	history_init();
@@ -2432,7 +2458,7 @@ int main(int argc, char **argv)
 
 		/* If a position was given on the command line, go there. */
 		if (givenline != 0 || givencol != 0)
-			do_gotolinecolumn(givenline, givencol, FALSE, FALSE);
+			goto_line_and_column(givenline, givencol, FALSE, FALSE);
 #ifndef NANO_TINY
 		else if (searchstring != NULL) {
 			if (ISSET(USE_REGEXP))
@@ -2455,11 +2481,14 @@ int main(int argc, char **argv)
 			ssize_t savedline, savedcol;
 			/* If edited before, restore the last cursor position. */
 			if (has_old_position(argv[optind - 1], &savedline, &savedcol))
-				do_gotolinecolumn(savedline, savedcol, FALSE, FALSE);
+				goto_line_and_column(savedline, savedcol, FALSE, FALSE);
 		}
 #endif
 	}
 
+	/* After handling the files on the command line, allow inserting files. */
+	UNSET(NOREAD_MODE);
+
 	/* If no filenames were given, or all of them were invalid things like
 	 * directories, then open a blank buffer and allow editing.  Otherwise,
 	 * switch from the last opened file to the next, that is: the first. */
@@ -2505,31 +2534,44 @@ int main(int argc, char **argv)
 		confirm_margin();
 #endif
 #ifdef __linux__
-		if (on_a_vt && get_key_buffer_len() == 0)
+		if (on_a_vt && waiting_keycodes() == 0)
 			mute_modifiers = FALSE;
 #endif
 		if (currmenu != MMAIN)
 			bottombars(MMAIN);
 
 #ifndef NANO_TINY
-		if (ISSET(MINIBAR) && LINES > 1 && lastmessage < REMARK)
+		if (ISSET(MINIBAR) && !ISSET(ZERO) && LINES > 1 && lastmessage < REMARK)
 			minibar();
 		else
 #endif
 		/* Update the displayed current cursor position only when there
 		 * is no message and no keys are waiting in the input buffer. */
 		if (ISSET(CONSTANT_SHOW) && lastmessage == VACUUM && LINES > 1 &&
-										get_key_buffer_len() == 0)
+								!ISSET(ZERO) && waiting_keycodes() == 0)
 			report_cursor_position();
 
 		as_an_at = TRUE;
 
-		/* Refresh just the cursor position or the entire edit window. */
-		if (!refresh_needed) {
-			place_the_cursor();
-			wnoutrefresh(edit);
-		} else if (LINES > 1 || lastmessage == VACUUM)
+		if ((refresh_needed && LINES > 1) || (LINES == 1 && lastmessage <= HUSH))
 			edit_refresh();
+		else
+			place_the_cursor();
+
+#ifndef NANO_TINY
+		/* In barless mode, either redraw a relevant status message,
+		 * or overwrite a minor, redundant one. */
+		if (ISSET(ZERO) && lastmessage > HUSH) {
+			if (openfile->current_y == editwinrows - 1 && LINES > 1) {
+				edit_scroll(FORWARD);
+				wnoutrefresh(midwin);
+			}
+			wredrawln(footwin, 0, 1);
+			wnoutrefresh(footwin);
+			place_the_cursor();
+		} else if (ISSET(ZERO) && lastmessage > VACUUM)
+			wredrawln(midwin, editwinrows - 1, 1);
+#endif
 
 		errno = 0;
 		focusing = TRUE;

src/prompt.c

@@ -1,7 +1,7 @@
 /**************************************************************************
  *   prompt.c  --  This file is part of GNU nano.                         *
  *                                                                        *
- *   Copyright (C) 1999-2011, 2013-2021 Free Software Foundation, Inc.    *
+ *   Copyright (C) 1999-2011, 2013-2022 Free Software Foundation, Inc.    *
  *   Copyright (C) 2016, 2018, 2020 Benno Schulenberg                     *
  *                                                                        *
  *   GNU nano is free software: you can redistribute it and/or modify     *
@@ -157,15 +157,27 @@ void do_statusbar_backspace(void)
 	}
 }
 
-/* Zap some or all text from the answer. */
-void do_statusbar_cut_text(void)
+/* Zap the part of the answer after the cursor, or the whole answer. */
+void lop_the_answer(void)
 {
-	if (!ISSET(CUT_FROM_CURSOR))
+	if (answer[typing_x] == '\0')
 		typing_x = 0;
 
 	answer[typing_x] = '\0';
 }
 
+#ifndef NANO_TINY
+/* Copy the current answer (if any) into the cutbuffer. */
+void copy_the_answer(void)
+{
+	if (*answer) {
+		free_lines(cutbuffer);
+		cutbuffer = make_new_node(NULL);
+		cutbuffer->data = copy_of(answer);
+		typing_x = 0;
+	}
+}
+
 /* Paste the first line of the cutbuffer into the current answer. */
 void paste_into_answer(void)
 {
@@ -182,6 +194,7 @@ void paste_into_answer(void)
 	answer = fusion;
 	typing_x += pastelen;
 }
+#endif
 
 #ifdef ENABLE_MOUSE
 /* Handle a mouse click on the status-bar prompt or the shortcut list. */
@@ -191,7 +204,7 @@ int do_statusbar_mouse(void)
 	int retval = get_mouseinput(&click_row, &click_col, TRUE);
 
 	/* We can click on the status-bar window text to move the cursor. */
-	if (retval == 0 && wmouse_trafo(bottomwin, &click_row, &click_col, FALSE)) {
+	if (retval == 0 && wmouse_trafo(footwin, &click_row, &click_col, FALSE)) {
 		size_t start_col = breadth(prompt) + 2;
 
 		/* Move to where the click occurred. */
@@ -216,7 +229,7 @@ void inject_into_answer(char *burst, size_t count)
 	answer = nrealloc(answer, strlen(answer) + count + 1);
 	memmove(answer + typing_x + count, answer + typing_x,
 								strlen(answer) - typing_x + 1);
-	strncpy(answer + typing_x, burst , count);
+	strncpy(answer + typing_x, burst, count);
 
 	typing_x += count;
 }
@@ -227,7 +240,7 @@ void do_statusbar_verbatim_input(void)
 	size_t count = 1;
 	char *bytes;
 
-	bytes = get_verbatim_kbinput(bottomwin, &count);
+	bytes = get_verbatim_kbinput(footwin, &count);
 
 	if (0 < count && count < 999)
 		inject_into_answer(bytes, count);
@@ -253,7 +266,7 @@ int do_statusbar_input(bool *finished)
 	*finished = FALSE;
 
 	/* Read in a character. */
-	input = get_kbinput(bottomwin, VISIBLE);
+	input = get_kbinput(footwin, VISIBLE);
 
 #ifndef NANO_TINY
 	if (input == KEY_WINCH)
@@ -265,7 +278,7 @@ int do_statusbar_input(bool *finished)
 	 * shortcut character. */
 	if (input == KEY_MOUSE) {
 		if (do_statusbar_mouse() == 1)
-			input = get_kbinput(bottomwin, BLIND);
+			input = get_kbinput(footwin, BLIND);
 		else
 			return ERR;
 	}
@@ -290,7 +303,7 @@ int do_statusbar_input(bool *finished)
 	/* If we got a shortcut, or if there aren't any other keystrokes waiting,
 	 * it's time to insert all characters in the input buffer (if not empty)
 	 * into the answer, and then clear the input buffer. */
-	if ((shortcut || get_key_buffer_len() == 0) && puddle != NULL) {
+	if ((shortcut || waiting_keycodes() == 0) && puddle != NULL) {
 		puddle[depth] = '\0';
 
 		inject_into_answer(puddle, depth);
@@ -304,8 +317,8 @@ int do_statusbar_input(bool *finished)
 		if (shortcut->func == do_tab || shortcut->func == do_enter)
 			;
 #ifdef ENABLE_HISTORIES
-		else if (shortcut->func == get_history_older_void ||
-					shortcut->func == get_history_newer_void)
+		else if (shortcut->func == get_older_item ||
+					shortcut->func == get_newer_item)
 			;
 #endif
 		else if (shortcut->func == do_left)
@@ -327,10 +340,10 @@ int do_statusbar_input(bool *finished)
 		else if (ISSET(RESTRICTED) && currmenu == MWRITEFILE &&
 								openfile->filename[0] != '\0' &&
 								(shortcut->func == do_verbatim_input ||
-								shortcut->func == cut_text ||
-								shortcut->func == paste_text ||
 								shortcut->func == do_delete ||
-								shortcut->func == do_backspace))
+								shortcut->func == do_backspace ||
+								shortcut->func == cut_text ||
+								shortcut->func == paste_text))
 			;
 #ifdef ENABLE_NANORC
 		else if (shortcut->func == (functionptrtype)implant)
@@ -338,16 +351,21 @@ int do_statusbar_input(bool *finished)
 #endif
 		else if (shortcut->func == do_verbatim_input)
 			do_statusbar_verbatim_input();
-		else if (shortcut->func == cut_text)
-			do_statusbar_cut_text();
 		else if (shortcut->func == do_delete)
 			do_statusbar_delete();
 		else if (shortcut->func == do_backspace)
 			do_statusbar_backspace();
+		else if (shortcut->func == cut_text)
+			lop_the_answer();
+#ifndef NANO_TINY
+		else if (shortcut->func == copy_text)
+			copy_the_answer();
 		else if (shortcut->func == paste_text) {
 			if (cutbuffer != NULL)
 				paste_into_answer();
-		} else {
+		}
+#endif
+		else {
 			/* Handle any other shortcut in the current menu, setting finished
 			 * to TRUE to indicate that we're done after running or trying to
 			 * run its associated function. */
@@ -392,33 +410,33 @@ void draw_the_promptbar(void)
 	end_page = get_statusbar_page_start(base, base + breadth(answer) - 1);
 
 	/* Color the prompt bar over its full width. */
-	wattron(bottomwin, interface_color_pair[PROMPT_BAR]);
-	mvwprintw(bottomwin, 0, 0, "%*s", COLS, " ");
+	wattron(footwin, interface_color_pair[PROMPT_BAR]);
+	mvwprintw(footwin, 0, 0, "%*s", COLS, " ");
 
-	mvwaddstr(bottomwin, 0, 0, prompt);
-	waddch(bottomwin, ':');
-	waddch(bottomwin, (the_page == 0) ? ' ' : '<');
+	mvwaddstr(footwin, 0, 0, prompt);
+	waddch(footwin, ':');
+	waddch(footwin, (the_page == 0) ? ' ' : '<');
 
 	expanded = display_string(answer, the_page, COLS - base, FALSE, TRUE);
-	waddstr(bottomwin, expanded);
+	waddstr(footwin, expanded);
 	free(expanded);
 
 	if (the_page < end_page && base + breadth(answer) - the_page > COLS)
-		mvwaddch(bottomwin, 0, COLS - 1, '>');
+		mvwaddch(footwin, 0, COLS - 1, '>');
 
-	wattroff(bottomwin, interface_color_pair[PROMPT_BAR]);
+	wattroff(footwin, interface_color_pair[PROMPT_BAR]);
 
 #if defined(NCURSES_VERSION_PATCH) && (NCURSES_VERSION_PATCH < 20210220)
 	/* Work around a cursor-misplacement bug -- https://sv.gnu.org/bugs/?59808. */
 	if (ISSET(NO_HELP)) {
-		wmove(bottomwin, 0, 0);
-		wrefresh(bottomwin);
+		wmove(footwin, 0, 0);
+		wrefresh(footwin);
 	}
 #endif
 
 	/* Place the cursor at the right spot. */
-	wmove(bottomwin, 0, column - the_page);
-	wnoutrefresh(bottomwin);
+	wmove(footwin, 0, column - the_page);
+	wnoutrefresh(footwin);
 }
 
 #ifndef NANO_TINY
@@ -446,10 +464,8 @@ functionptrtype acquire_an_answer(int *actual, bool *listed,
 	bool finished;
 	functionptrtype func;
 #ifdef ENABLE_HISTORIES
-	char *history = NULL;
-		/* The current history string. */
-	char *magichistory = NULL;
-		/* The (partial) answer that was typed at the prompt, if any. */
+	char *stored_string = NULL;
+		/* Whatever the answer was before the user foraged into history. */
 #ifdef ENABLE_TABCOMP
 	bool previous_was_tab = FALSE;
 		/* Whether the previous keystroke was an attempt at tab completion. */
@@ -472,7 +488,7 @@ functionptrtype acquire_an_answer(int *actual, bool *listed,
 			refresh_func();
 			*actual = KEY_WINCH;
 #ifdef ENABLE_HISTORIES
-			free(magichistory);
+			free(stored_string);
 #endif
 			return NULL;
 		}
@@ -503,36 +519,33 @@ functionptrtype acquire_an_answer(int *actual, bool *listed,
 		} else
 #endif /* ENABLE_TABCOMP */
 #ifdef ENABLE_HISTORIES
-		if (func == get_history_older_void) {
-			if (history_list != NULL) {
-				/* If we're scrolling up at the bottom of the history list
-				 * and answer isn't blank, save answer in magichistory. */
-				if ((*history_list)->next == NULL && *answer != '\0')
-					magichistory = mallocstrcpy(magichistory, answer);
+		if (func == get_older_item && history_list != NULL) {
+			/* If this is the first step into history, start at the bottom. */
+			if (stored_string == NULL)
+				reset_history_pointer_for(*history_list);
 
-				/* Get the older search from the history list and save it in
-				 * answer.  If there is no older search, don't do anything. */
-				if ((history = get_history_older(history_list)) != NULL) {
-					answer = mallocstrcpy(answer, history);
-					typing_x = strlen(answer);
-				}
+			/* When moving up from the bottom, remember the current answer. */
+			if ((*history_list)->next == NULL)
+				stored_string = mallocstrcpy(stored_string, answer);
+
+			/* If there is an older item, move to it and copy its string. */
+			if ((*history_list)->prev != NULL) {
+				*history_list = (*history_list)->prev;
+				answer = mallocstrcpy(answer, (*history_list)->data);
+				typing_x = strlen(answer);
+			}
+		} else if (func == get_newer_item && history_list != NULL) {
+			/* If there is a newer item, move to it and copy its string. */
+			if ((*history_list)->next != NULL) {
+				*history_list = (*history_list)->next;
+				answer = mallocstrcpy(answer, (*history_list)->data);
+				typing_x = strlen(answer);
 			}
-		} else if (func == get_history_newer_void) {
-			if (history_list != NULL) {
-				/* Get the newer search from the history list and save it in
-				 * answer.  If there is no newer search, don't do anything. */
-				if ((history = get_history_newer(history_list)) != NULL) {
-					answer = mallocstrcpy(answer, history);
-					typing_x = strlen(answer);
-				}
 
-				/* If we've reached the bottom of the history list, and answer
-				 * is blank, and magichistory is set, restore the old answer. */
-				if ((*history_list)->next == NULL &&
-						*answer == '\0' && magichistory != NULL) {
-					answer = mallocstrcpy(answer, magichistory);
-					typing_x = strlen(answer);
-				}
+			/* When at the bottom of the history list, restore the old answer. */
+			if ((*history_list)->next == NULL && stored_string && *answer == '\0') {
+				answer = mallocstrcpy(answer, stored_string);
+				typing_x = strlen(answer);
 			}
 		} else
 #endif /* ENABLE_HISTORIES */
@@ -542,7 +555,7 @@ functionptrtype acquire_an_answer(int *actual, bool *listed,
 #ifndef NANO_TINY
 		else if (func == do_nothing)
 			finished = FALSE;
-		else if (func == do_toggle_void) {
+		else if (func == do_toggle) {
 			TOGGLE(NO_HELP);
 			window_init();
 			focusing = FALSE;
@@ -563,10 +576,10 @@ functionptrtype acquire_an_answer(int *actual, bool *listed,
 	}
 
 #ifdef ENABLE_HISTORIES
-	/* Set the current position in the history list to the bottom. */
-	if (history_list != NULL) {
-		history_reset(*history_list);
-		free(magichistory);
+	/* If the history pointer was moved, point it at the bottom again. */
+	if (stored_string != NULL) {
+		reset_history_pointer_for(*history_list);
+		free(stored_string);
 	}
 #endif
 
@@ -640,12 +653,14 @@ int do_prompt(int menu, const char *provided, linestruct **history_list,
 	return retval;
 }
 
-/* Ask a simple Yes/No (and optionally All) question, specified in msg,
- * on the status bar.  Return 1 for Yes, 0 for No, 2 for All (if all is
- * TRUE when passed in), and -1 for Cancel. */
-int do_yesno_prompt(bool all, const char *msg)
+#define UNDECIDED  -2
+
+/* Ask a simple Yes/No (and optionally All) question on the status bar
+ * and return the choice -- either YES or NO or ALL or CANCEL. */
+int ask_user(bool withall, const char *question)
 {
-	int choice = -2, width = 16;
+	int choice = UNDECIDED;
+	int width = 16;
 	/* TRANSLATORS: For the next three strings, specify the starting letters
 	 * of the translations for "Yes"/"No"/"All".  The first letter of each of
 	 * these strings MUST be a single-byte letter; others may be multi-byte. */
@@ -653,7 +668,7 @@ int do_yesno_prompt(bool all, const char *msg)
 	const char *nostr = _("Nn");
 	const char *allstr = _("Aa");
 
-	while (choice == -2) {
+	while (choice == UNDECIDED) {
 #ifdef ENABLE_NLS
 		char letter[MAXCHARLEN + 1];
 		int index = 0;
@@ -674,34 +689,34 @@ int do_yesno_prompt(bool all, const char *msg)
 
 			/* Now show the ones for "Yes", "No", "Cancel" and maybe "All". */
 			sprintf(shortstr, " %c", yesstr[0]);
-			wmove(bottomwin, 1, 0);
+			wmove(footwin, 1, 0);
 			post_one_key(shortstr, _("Yes"), width);
 
 			shortstr[1] = nostr[0];
-			wmove(bottomwin, 2, 0);
+			wmove(footwin, 2, 0);
 			post_one_key(shortstr, _("No"), width);
 
-			if (all) {
+			if (withall) {
 				shortstr[1] = allstr[0];
-				wmove(bottomwin, 1, width);
+				wmove(footwin, 1, width);
 				post_one_key(shortstr, _("All"), width);
 			}
 
-			wmove(bottomwin, 2, width);
+			wmove(footwin, 2, width);
 			post_one_key(cancelshortcut->keystr, _("Cancel"), width);
 		}
 
 		/* Color the prompt bar over its full width and display the question. */
-		wattron(bottomwin, interface_color_pair[PROMPT_BAR]);
-		mvwprintw(bottomwin, 0, 0, "%*s", COLS, " ");
-		mvwaddnstr(bottomwin, 0, 0, msg, actual_x(msg, COLS - 1));
-		wattroff(bottomwin, interface_color_pair[PROMPT_BAR]);
-		wnoutrefresh(bottomwin);
+		wattron(footwin, interface_color_pair[PROMPT_BAR]);
+		mvwprintw(footwin, 0, 0, "%*s", COLS, " ");
+		mvwaddnstr(footwin, 0, 0, question, actual_x(question, COLS - 1));
+		wattroff(footwin, interface_color_pair[PROMPT_BAR]);
+		wnoutrefresh(footwin);
 
 		currmenu = MYESNO;
 
 		/* When not replacing, show the cursor while waiting for a key. */
-		kbinput = get_kbinput(bottomwin, !all);
+		kbinput = get_kbinput(footwin, !withall);
 
 #ifndef NANO_TINY
 		if (kbinput == KEY_WINCH)
@@ -709,7 +724,7 @@ int do_yesno_prompt(bool all, const char *msg)
 
 		/* Accept the first character of an external paste. */
 		if (bracketed_paste && kbinput == BRACKETED_PASTE_MARKER)
-			kbinput = get_kbinput(bottomwin, BLIND);
+			kbinput = get_kbinput(footwin, BLIND);
 #endif
 
 #ifdef ENABLE_NLS
@@ -720,41 +735,41 @@ int do_yesno_prompt(bool all, const char *msg)
 		if (using_utf8() && 0xC0 <= kbinput && kbinput <= 0xF7) {
 			int extras = (kbinput / 16) % 4 + (kbinput <= 0xCF ? 1 : 0);
 
-			while (extras <= get_key_buffer_len() && extras-- > 0)
-				letter[index++] = (unsigned char)get_kbinput(bottomwin, !all);
+			while (extras <= waiting_keycodes() && extras-- > 0)
+				letter[index++] = (unsigned char)get_kbinput(footwin, !withall);
 		}
 #endif
 		letter[index] = '\0';
 
 		/* See if the typed letter is in the Yes, No, or All strings. */
 		if (strstr(yesstr, letter) != NULL)
-			choice = 1;
+			choice = YES;
 		else if (strstr(nostr, letter) != NULL)
-			choice = 0;
-		else if (all && strstr(allstr, letter) != NULL)
-			choice = 2;
+			choice = NO;
+		else if (withall && strstr(allstr, letter) != NULL)
+			choice = ALL;
 		else
 #endif /* ENABLE_NLS */
 		if (strchr("Yy", kbinput) != NULL)
-			choice = 1;
+			choice = YES;
 		else if (strchr("Nn", kbinput) != NULL)
-			choice = 0;
-		else if (all && strchr("Aa", kbinput) != NULL)
-			choice = 2;
+			choice = NO;
+		else if (withall && strchr("Aa", kbinput) != NULL)
+			choice = ALL;
 		else if (func_from_key(&kbinput) == do_cancel)
-			choice = -1;
+			choice = CANCEL;
 		/* Interpret ^N and ^Q as "No", to allow exiting in anger. */
 		else if (kbinput == '\x0E' || kbinput == '\x11')
-			choice = 0;
+			choice = NO;
 		/* And interpret ^Y as "Yes". */
 		else if (kbinput == '\x19')
-			choice = 1;
+			choice = YES;
 #ifdef ENABLE_MOUSE
 		else if (kbinput == KEY_MOUSE) {
 			int mouse_x, mouse_y;
 			/* We can click on the Yes/No/All shortcuts to select an answer. */
 			if (get_mouseinput(&mouse_y, &mouse_x, FALSE) == 0 &&
-						wmouse_trafo(bottomwin, &mouse_y, &mouse_x, FALSE) &&
+						wmouse_trafo(footwin, &mouse_y, &mouse_x, FALSE) &&
 						mouse_x < (width * 2) && mouse_y > 0) {
 				int x = mouse_x / width;
 				int y = mouse_y - 1;
@@ -762,20 +777,21 @@ int do_yesno_prompt(bool all, const char *msg)
 				/* x == 0 means Yes or No, y == 0 means Yes or All. */
 				choice = -2 * x * y + x - y + 1;
 
-				if (choice == 2 && !all)
-					choice = -2;
+				if (choice == ALL && !withall)
+					choice = UNDECIDED;
 			}
 		}
 #endif
 		else if (func_from_key(&kbinput) == full_refresh)
 			full_refresh();
 #ifndef NANO_TINY
-		else if (func_from_key(&kbinput) == do_toggle_void) {
+		else if (func_from_key(&kbinput) == do_toggle) {
 			TOGGLE(NO_HELP);
 			window_init();
 			titlebar(NULL);
 			focusing = FALSE;
 			edit_refresh();
+			focusing = TRUE;
 		}
 #endif
 		else
@@ -784,7 +800,7 @@ int do_yesno_prompt(bool all, const char *msg)
 #ifndef NANO_TINY
 		/* Ignore the rest of an external paste. */
 		while (bracketed_paste)
-			kbinput = get_kbinput(bottomwin, BLIND);
+			kbinput = get_kbinput(footwin, BLIND);
 #endif
 	}
 

src/prototypes.h

@@ -1,7 +1,7 @@
 /**************************************************************************
  *   prototypes.h  --  This file is part of GNU nano.                     *
  *                                                                        *
- *   Copyright (C) 1999-2011, 2013-2021 Free Software Foundation, Inc.    *
+ *   Copyright (C) 1999-2011, 2013-2022 Free Software Foundation, Inc.    *
  *                                                                        *
  *   GNU nano is free software: you can redistribute it and/or modify     *
  *   it under the terms of the GNU General Public License as published    *
@@ -53,7 +53,6 @@ extern message_type lastmessage;
 extern linestruct *pletion_line;
 
 extern bool also_the_last;
-extern bool hide_cursor;
 
 extern char *answer;
 
@@ -88,8 +87,8 @@ extern size_t wrap_at;
 #endif
 
 extern WINDOW *topwin;
-extern WINDOW *edit;
-extern WINDOW *bottomwin;
+extern WINDOW *midwin;
+extern WINDOW *footwin;
 extern int editwinrows;
 extern int editwincols;
 extern int margin;
@@ -142,6 +141,9 @@ extern char *alt_speller;
 extern syntaxtype *syntaxes;
 extern char *syntaxstr;
 extern bool have_palette;
+extern bool rescind_colors;
+extern bool perturbed;
+extern bool recook;
 #endif
 
 extern bool refresh_needed;
@@ -282,7 +284,7 @@ void close_buffer(void);
 void read_file(FILE *f, int fd, const char *filename, bool undoable);
 int open_file(const char *filename, bool new_one, FILE **f);
 char *get_next_filename(const char *name, const char *suffix);
-void do_insertfile_void(void);
+void do_insertfile(void);
 #ifndef NANO_TINY
 void do_execute(void);
 #endif
@@ -302,8 +304,8 @@ bool write_file(const char *name, FILE *thefile, bool normal,
 bool write_region_to_file(const char *name, FILE *stream, bool normal,
 				kind_of_writing_type method);
 #endif
-int do_writeout(bool exiting, bool withprompt);
-void do_writeout_void(void);
+int write_it_out(bool exiting, bool withprompt);
+void do_writeout(void);
 void do_savefile(void);
 char *real_dir_from_tilde(const char *path);
 #if defined(ENABLE_TABCOMP) || defined(ENABLE_BROWSER)
@@ -323,7 +325,7 @@ functionptrtype interpret(int *keycode);
 #endif
 int keycode_from_string(const char *keystring);
 void shortcut_init(void);
-const char *flagtostr(int flag);
+const char *epithet_of_flag(int flag);
 
 /* Some functions in help.c. */
 #ifdef ENABLE_HELP
@@ -334,12 +336,8 @@ void do_help(void);
 /* Most functions in history.c. */
 #ifdef ENABLE_HISTORIES
 void history_init(void);
-void history_reset(const linestruct *list);
-void update_history(linestruct **item, const char *text);
-char *get_history_older(linestruct **h);
-char *get_history_newer(linestruct **h);
-void get_history_older_void(void);
-void get_history_newer_void(void);
+void reset_history_pointer_for(const linestruct *list);
+void update_history(linestruct **item, const char *text, bool avoid_duplicates);
 #ifdef ENABLE_TABCOMP
 char *get_history_completion(linestruct **h, char *s, size_t len);
 #endif
@@ -364,8 +362,8 @@ void to_para_end(void);
 #endif
 void to_prev_block(void);
 void to_next_block(void);
-void do_prev_word(bool allow_punct);
-bool do_next_word(bool after_ends, bool allow_punct);
+void do_prev_word(void);
+bool do_next_word(bool after_ends);
 void to_prev_word(void);
 void to_next_word(void);
 void do_home(void);
@@ -390,6 +388,9 @@ void free_lines(linestruct *src);
 void renumber_from(linestruct *line);
 void print_view_warning(void);
 bool in_restricted_mode(void);
+#ifndef NANO_TINY
+void suggest_ctrlT_ctrlZ(void);
+#endif
 void finish(void);
 void close_and_go(void);
 void do_exit(void);
@@ -404,15 +405,15 @@ void handle_hupterm(int signal);
 #ifndef DEBUG
 void handle_crash(int signal);
 #endif
-void do_suspend(int signal);
-void do_continue(int signal);
+void suspend_nano(int signal);
+void do_suspend(void);
+void continue_nano(int signal);
 #if !defined(NANO_TINY) || defined(ENABLE_SPELLER) || defined(ENABLE_COLOR)
 void block_sigwinch(bool blockit);
 #endif
 #ifndef NANO_TINY
 void handle_sigwinch(int signal);
 void regenerate_screen(void);
-void do_toggle(int flag);
 #endif
 void disable_kb_interrupt(void);
 void enable_kb_interrupt(void);
@@ -432,7 +433,7 @@ void put_cursor_at_end_of_answer(void);
 void add_or_remove_pipe_symbol_from_answer(void);
 int do_prompt(int menu, const char *provided, linestruct **history_list,
 		void (*refresh_func)(void), const char *msg, ...);
-int do_yesno_prompt(bool all, const char *msg);
+int ask_user(bool withall, const char *question);
 
 /* Most functions in rcfile.c. */
 #if defined(ENABLE_NANORC) || defined(ENABLE_HISTORIES)
@@ -465,9 +466,9 @@ ssize_t do_replace_loop(const char *needle, bool whole_word_only,
 void do_replace(void);
 void ask_for_and_do_replacements(void);
 void goto_line_posx(ssize_t line, size_t pos_x);
-void do_gotolinecolumn(ssize_t line, ssize_t column, bool retain_answer,
+void goto_line_and_column(ssize_t line, ssize_t column, bool retain_answer,
 		bool interactive);
-void do_gotolinecolumn_void(void);
+void do_gotolinecolumn(void);
 #ifndef NANO_TINY
 void do_find_bracket(void);
 void put_or_lift_anchor(void);
@@ -497,7 +498,7 @@ void update_multiline_undo(ssize_t lineno, char *indentation);
 void update_undo(undo_type action);
 #endif /* !NANO_TINY */
 #ifdef ENABLE_WRAPPING
-bool do_wrap(void);
+void do_wrap(void);
 #endif
 #if defined(ENABLE_HELP) || defined(ENABLED_WRAPORJUSTIFY)
 ssize_t break_line(const char *textstart, ssize_t goal, bool snap_at_nl);
@@ -520,7 +521,7 @@ void do_linter(void);
 void do_formatter(void);
 #endif
 #ifndef NANO_TINY
-void do_wordlinechar_count(void);
+void count_lines_words_and_characters(void);
 #endif
 void do_verbatim_input(void);
 void complete_a_word(void);
@@ -570,11 +571,11 @@ linestruct *line_from_number(ssize_t number);
 /* Most functions in winio.c. */
 void record_macro(void);
 void run_macro(void);
-size_t get_key_buffer_len(void);
+size_t waiting_keycodes(void);
 #ifdef ENABLE_NANORC
 void implant(const char *string);
 #endif
-int parse_kbinput(WINDOW *win);
+int get_input(WINDOW *win);
 int get_kbinput(WINDOW *win, bool showcursor);
 char *get_verbatim_kbinput(WINDOW *win, size_t *count);
 #ifdef ENABLE_MOUSE
@@ -625,7 +626,6 @@ void spotlight(size_t from_col, size_t to_col);
 #ifndef NANO_TINY
 void spotlight_softwrapped(size_t from_col, size_t to_col);
 #endif
-void do_suspend_void(void);
 #ifdef ENABLE_EXTRA
 void do_credits(void);
 #endif
@@ -634,6 +634,10 @@ void do_credits(void);
 void case_sens_void(void);
 void regexp_void(void);
 void backwards_void(void);
+#ifdef ENABLE_HISTORIES
+void get_older_item(void);
+void get_newer_item(void);
+#endif
 void flip_replace(void);
 void flip_goto(void);
 #ifdef ENABLE_BROWSER
@@ -642,12 +646,12 @@ void goto_dir(void);
 #endif
 #ifndef NANO_TINY
 void do_nothing(void);
-void do_toggle_void(void);
-void dos_format_void(void);
-void mac_format_void(void);
-void append_void(void);
-void prepend_void(void);
-void backup_file_void(void);
+void do_toggle(void);
+void dos_format(void);
+void mac_format(void);
+void append_it(void);
+void prepend_it(void);
+void back_it_up(void);
 void flip_execute(void);
 void flip_pipe(void);
 void flip_convert(void);

src/rcfile.c

@@ -1,10 +1,10 @@
 /**************************************************************************
  *   rcfile.c  --  This file is part of GNU nano.                         *
  *                                                                        *
- *   Copyright (C) 2001-2011, 2013-2021 Free Software Foundation, Inc.    *
+ *   Copyright (C) 2001-2011, 2013-2022 Free Software Foundation, Inc.    *
  *   Copyright (C) 2014 Mike Frysinger                                    *
  *   Copyright (C) 2019 Brand Huntsman                                    *
- *   Copyright (C) 2014-2020 Benno Schulenberg                            *
+ *   Copyright (C) 2014-2021 Benno Schulenberg                            *
  *                                                                        *
  *   GNU nano is free software: you can redistribute it and/or modify     *
  *   it under the terms of the GNU General Public License as published    *
@@ -91,7 +91,7 @@ static const rcoption rcopts[] = {
 	{"speller", 0},
 #endif
 	{"suspend", SUSPENDABLE},  /* Deprecated; remove in 2022. */
-	{"suspendable", SUSPENDABLE},
+	{"suspendable", SUSPENDABLE},  /* Obsolete; remove in 2022. */
 	{"tempfile", SAVE_ON_EXIT},  /* Deprecated; remove in 2022. */
 #ifndef NANO_TINY
 	{"afterends", AFTER_ENDS},
@@ -122,6 +122,7 @@ static const rcoption rcopts[] = {
 	{"wordbounds", WORD_BOUNDS},
 	{"wordchars", 0},
 	{"zap", LET_THEM_ZAP},
+	{"zero", ZERO},
 #endif
 #ifdef ENABLE_COLOR
 	{"titlecolor", 0},
@@ -242,11 +243,11 @@ keystruct *strtosc(const char *input)
 	else if (!strcmp(input, "discardbuffer"))
 		s->func = discard_buffer;
 	else if (!strcmp(input, "writeout"))
-		s->func = do_writeout_void;
+		s->func = do_writeout;
 	else if (!strcmp(input, "savefile"))
 		s->func = do_savefile;
 	else if (!strcmp(input, "insert"))
-		s->func = do_insertfile_void;
+		s->func = do_insertfile;
 	else if (!strcmp(input, "whereis"))
 		s->func = do_search_forward;
 	else if (!strcmp(input, "wherewas"))
@@ -288,7 +289,7 @@ keystruct *strtosc(const char *input)
 	         !strcmp(input, "curpos"))  /* Deprecated; remove in 2022. */
 		s->func = report_cursor_position;
 	else if (!strcmp(input, "gotoline"))
-		s->func = do_gotolinecolumn_void;
+		s->func = do_gotolinecolumn;
 #ifdef ENABLE_JUSTIFY
 	else if (!strcmp(input, "justify"))
 		s->func = do_justify;
@@ -312,16 +313,14 @@ keystruct *strtosc(const char *input)
 		s->func = do_indent;
 	else if (!strcmp(input, "unindent"))
 		s->func = do_unindent;
-	else if (!strcmp(input, "chopwordleft") ||
-	         !strcmp(input, "cutwordleft"))  /* Deprecated; remove in 2021. */
+	else if (!strcmp(input, "chopwordleft"))
 		s->func = chop_previous_word;
-	else if (!strcmp(input, "chopwordright") ||
-	         !strcmp(input, "cutwordright"))  /* Deprecated; remove in 2021. */
+	else if (!strcmp(input, "chopwordright"))
 		s->func = chop_next_word;
 	else if (!strcmp(input, "findbracket"))
 		s->func = do_find_bracket;
 	else if (!strcmp(input, "wordcount"))
-		s->func = do_wordlinechar_count;
+		s->func = count_lines_words_and_characters;
 	else if (!strcmp(input, "recordmacro"))
 		s->func = record_macro;
 	else if (!strcmp(input, "runmacro"))
@@ -397,8 +396,10 @@ keystruct *strtosc(const char *input)
 		s->func = do_backspace;
 	else if (!strcmp(input, "refresh"))
 		s->func = full_refresh;
+#ifndef NANO_TINY
 	else if (!strcmp(input, "suspend"))
-		s->func = do_suspend_void;
+		s->func = do_suspend;
+#endif
 	else if (!strcmp(input, "casesens"))
 		s->func = case_sens_void;
 	else if (!strcmp(input, "regexp"))
@@ -411,21 +412,21 @@ keystruct *strtosc(const char *input)
 		s->func = flip_goto;
 #ifdef ENABLE_HISTORIES
 	else if (!strcmp(input, "older"))
-		s->func = get_history_older_void;
+		s->func = get_older_item;
 	else if (!strcmp(input, "newer"))
-		s->func = get_history_newer_void;
+		s->func = get_newer_item;
 #endif
 #ifndef NANO_TINY
 	else if (!strcmp(input, "dosformat"))
-		s->func = dos_format_void;
+		s->func = dos_format;
 	else if (!strcmp(input, "macformat"))
-		s->func = mac_format_void;
+		s->func = mac_format;
 	else if (!strcmp(input, "append"))
-		s->func = append_void;
+		s->func = append_it;
 	else if (!strcmp(input, "prepend"))
-		s->func = prepend_void;
+		s->func = prepend_it;
 	else if (!strcmp(input, "backup"))
-		s->func = backup_file_void;
+		s->func = back_it_up;
 	else if (!strcmp(input, "flipexecute"))
 		s->func = flip_execute;
 	else if (!strcmp(input, "flippipe"))
@@ -450,9 +451,11 @@ keystruct *strtosc(const char *input)
 #endif
 	else {
 #ifndef NANO_TINY
-		s->func = do_toggle_void;
+		s->func = do_toggle;
 		if (!strcmp(input, "nohelp"))
 			s->toggle = NO_HELP;
+		else if (!strcmp(input, "zero"))
+			s->toggle = ZERO;
 		else if (!strcmp(input, "constantshow"))
 			s->toggle = CONSTANT_SHOW;
 		else if (!strcmp(input, "softwrap"))
@@ -484,9 +487,6 @@ keystruct *strtosc(const char *input)
 		else if (!strcmp(input, "mouse"))
 			s->toggle = USE_MOUSE;
 #endif
-		else if (!strcmp(input, "suspendable") ||
-		         !strcmp(input, "suspendenable"))  /* Deprecated; remove in 2022. */
-			s->toggle = SUSPENDABLE;
 		else
 #endif /* !NANO_TINY */
 		{
@@ -828,9 +828,9 @@ void parse_binding(char *ptr, bool dobind)
 	if (is_universal(newsc->func))
 		menu &= MMOST|MBROWSER;
 #ifndef NANO_TINY
-	else if (newsc->func == do_toggle_void && newsc->toggle == NO_HELP)
+	else if (newsc->func == do_toggle && newsc->toggle == NO_HELP)
 		menu &= (MMOST|MBROWSER|MYESNO) & ~MFINDINHELP;
-	else if (newsc->func == do_toggle_void)
+	else if (newsc->func == do_toggle)
 		menu &= MMAIN;
 #endif
 	else if (newsc->func == full_refresh)
@@ -868,9 +868,9 @@ void parse_binding(char *ptr, bool dobind)
 
 #ifndef NANO_TINY
 	/* If this is a toggle, find and copy its sequence number. */
-	if (newsc->func == do_toggle_void) {
+	if (newsc->func == do_toggle) {
 		for (keystruct *s = sclist; s != NULL; s = s->next)
-			if (s->func == do_toggle_void && s->toggle == newsc->toggle)
+			if (s->func == do_toggle && s->toggle == newsc->toggle)
 				newsc->ordinal = s->ordinal;
 	} else
 		newsc->ordinal = 0;
@@ -992,7 +992,20 @@ void parse_includes(char *ptr)
 	free(expanded);
 }
 
-#define COLORCOUNT  20
+/* Return the index of the color that is closest to the given RGB levels,
+ * assuming that the terminal uses the 6x6x6 color cube of xterm-256color. */
+short closest_index_color(short red, short green, short blue)
+{
+	/* Translation table, from 16 intended levels to 6 available levels. */
+	static const short level[] = { 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5 };
+
+	if (COLORS == 256)
+		return (36 * level[red] + 6 * level[green] + level[blue] + 16);
+	else
+		return THE_DEFAULT;
+}
+
+#define COLORCOUNT  34
 
 const char hues[COLORCOUNT][8] = { "red", "green", "blue",
 								   "yellow", "cyan", "magenta",
@@ -1000,12 +1013,19 @@ const char hues[COLORCOUNT][8] = { "red", "green", "blue",
 								   "pink", "purple", "mauve",
 								   "lagoon", "mint", "lime",
 								   "peach", "orange", "latte",
+								   "rosy", "beet", "plum",
+								   "sea", "sky", "slate",
+								   "teal", "sage", "brown",
+								   "ocher", "sand", "tawny",
+								   "brick", "crimson",
 								   "grey", "gray" };
 
 short indices[COLORCOUNT] = { COLOR_RED, COLOR_GREEN, COLOR_BLUE,
 							  COLOR_YELLOW, COLOR_CYAN, COLOR_MAGENTA,
 							  COLOR_WHITE, COLOR_BLACK, THE_DEFAULT,
 							  204, 163, 134, 38, 48, 148, 215, 208, 137,
+							  175, 127, 98, 32, 111, 66, 35, 107, 100,
+							  142, 186, 136, 166, 161,
 							  COLOR_BLACK + 8, COLOR_BLACK + 8 };
 
 /* Return the short value corresponding to the given color name, and set
@@ -1026,6 +1046,18 @@ short color_to_short(const char *colorname, bool *vivid, bool *thick)
 		*thick = FALSE;
 	}
 
+	if (colorname[0] == '#' && strlen(colorname) == 4) {
+		unsigned short r, g, b;
+
+		if (*vivid) {
+			jot_error(N_("Color '%s' takes no prefix"), colorname);
+			return BAD_COLOR;
+		}
+
+		if (sscanf(colorname, "#%1hX%1hX%1hX", &r, &g, &b) == 3)
+			return closest_index_color(r, g, b);
+	}
+
 	for (int index = 0; index < COLORCOUNT; index++)
 		if (strcmp(colorname, hues[index]) == 0) {
 			if (index > 7 && *vivid) {
@@ -1567,7 +1599,7 @@ void parse_rcfile(FILE *rcstream, bool just_syntax, bool intros_only)
 #endif
 #ifdef ENABLE_OPERATINGDIR
 		if (strcmp(option, "operatingdir") == 0)
-			operating_dir = copy_of(argument);
+			operating_dir = mallocstrcpy(operating_dir, argument);
 		else
 #endif
 #ifdef ENABLED_WRAPORJUSTIFY
@@ -1585,12 +1617,12 @@ void parse_rcfile(FILE *rcstream, bool just_syntax, bool intros_only)
 			else if (mbstrlen(argument) % 2 != 0)
 				jot_error(N_("Even number of characters required"));
 			else
-				matchbrackets = copy_of(argument);
+				matchbrackets = mallocstrcpy(matchbrackets, argument);
 		} else if (strcmp(option, "whitespace") == 0) {
 			if (mbstrlen(argument) != 2 || breadth(argument) != 2)
 				jot_error(N_("Two single-column characters required"));
 			else {
-				whitespace = copy_of(argument);
+				whitespace = mallocstrcpy(whitespace, argument);
 				whitelen[0] = char_length(whitespace);
 				whitelen[1] = char_length(whitespace + whitelen[0]);
 			}
@@ -1601,26 +1633,26 @@ void parse_rcfile(FILE *rcstream, bool just_syntax, bool intros_only)
 			if (has_blank_char(argument))
 				jot_error(N_("Non-blank characters required"));
 			else
-				punct = copy_of(argument);
+				punct = mallocstrcpy(punct, argument);
 		} else if (strcmp(option, "brackets") == 0) {
 			if (has_blank_char(argument))
 				jot_error(N_("Non-blank characters required"));
 			else
-				brackets = copy_of(argument);
+				brackets = mallocstrcpy(brackets, argument);
 		} else if (strcmp(option, "quotestr") == 0)
-			quotestr = copy_of(argument);
+			quotestr = mallocstrcpy(quotestr, argument);
 		else
 #endif
 #ifdef ENABLE_SPELLER
 		if (strcmp(option, "speller") == 0)
-			alt_speller = copy_of(argument);
+			alt_speller = mallocstrcpy(alt_speller, argument);
 		else
 #endif
 #ifndef NANO_TINY
 		if (strcmp(option, "backupdir") == 0)
-			backup_dir = copy_of(argument);
+			backup_dir = mallocstrcpy(backup_dir, argument);
 		else if (strcmp(option, "wordchars") == 0)
-			word_chars = copy_of(argument);
+			word_chars = mallocstrcpy(word_chars, argument);
 		else if (strcmp(option, "guidestripe") == 0) {
 			if (!parse_num(argument, &stripe_column) || stripe_column <= 0) {
 				jot_error(N_("Guide column \"%s\" is invalid"), argument);

src/search.c

@@ -1,7 +1,7 @@
 /**************************************************************************
  *   search.c  --  This file is part of GNU nano.                         *
  *                                                                        *
- *   Copyright (C) 1999-2011, 2013-2021 Free Software Foundation, Inc.    *
+ *   Copyright (C) 1999-2011, 2013-2022 Free Software Foundation, Inc.    *
  *   Copyright (C) 2015-2020 Benno Schulenberg                            *
  *                                                                        *
  *   GNU nano is free software: you can redistribute it and/or modify     *
@@ -65,6 +65,9 @@ void tidy_up_after_search(void)
 	if (openfile->mark)
 		refresh_needed = TRUE;
 #endif
+#ifdef ENABLE_COLOR
+	recook |= perturbed;
+#endif
 }
 
 /* Prepare the prompt and ask the user what to search for.  Keep looping
@@ -118,7 +121,7 @@ void search_init(bool replacing, bool retain_answer)
 			if (*answer != '\0') {
 				last_search = mallocstrcpy(last_search, answer);
 #ifdef ENABLE_HISTORIES
-				update_history(&search_history, answer);
+				update_history(&search_history, answer, PRUNE_DUPLICATE);
 #endif
 			}
 
@@ -152,7 +155,7 @@ void search_init(bool replacing, bool retain_answer)
 			} else
 				replacing = !replacing;
 		} else if (func == flip_goto) {
-			do_gotolinecolumn(openfile->current->lineno,
+			goto_line_and_column(openfile->current->lineno,
 								openfile->placewewant + 1, TRUE, TRUE);
 			break;
 		} else
@@ -186,7 +189,7 @@ int findnextstr(const char *needle, bool whole_word_only, int modus,
 		/* The time we last looked at the keyboard. */
 
 	/* Set non-blocking input so that we can just peek for a Cancel. */
-	nodelay(edit, TRUE);
+	nodelay(midwin, TRUE);
 
 	if (begin == NULL)
 		came_full_circle = FALSE;
@@ -226,14 +229,14 @@ int findnextstr(const char *needle, bool whole_word_only, int modus,
 #ifndef NANO_TINY
 		if (the_window_resized) {
 			regenerate_screen();
-			nodelay(edit, TRUE);
+			nodelay(midwin, TRUE);
 			statusbar(_("Searching..."));
 			feedback = 1;
 		}
 #endif
 		/* If we're back at the beginning, then there is no needle. */
 		if (came_full_circle) {
-			nodelay(edit, FALSE);
+			nodelay(midwin, FALSE);
 			return 0;
 		}
 
@@ -244,7 +247,7 @@ int findnextstr(const char *needle, bool whole_word_only, int modus,
 		 * but stop when spell-checking or replacing in a region. */
 		if (line == NULL) {
 			if (whole_word_only || modus == INREGION) {
-				nodelay(edit, FALSE);
+				nodelay(midwin, FALSE);
 				return 0;
 			}
 
@@ -268,7 +271,7 @@ int findnextstr(const char *needle, bool whole_word_only, int modus,
 
 		/* Glance at the keyboard once every second, to check for a Cancel. */
 		if (time(NULL) - lastkbcheck > 0) {
-			int input = wgetch(edit);
+			int input = wgetch(midwin);
 
 			lastkbcheck = time(NULL);
 
@@ -276,7 +279,7 @@ int findnextstr(const char *needle, bool whole_word_only, int modus,
 			while (input != ERR) {
 				if (input == ESC_CODE) {
 					napms(20);
-					input = wgetch(edit);
+					input = wgetch(midwin);
 					meta_key = TRUE;
 				} else
 					meta_key = FALSE;
@@ -289,12 +292,12 @@ int findnextstr(const char *needle, bool whole_word_only, int modus,
 					statusbar(_("Cancelled"));
 					/* Clear out the key buffer (in case a macro is running). */
 					while (input != ERR)
-						input = parse_kbinput(NULL);
-					nodelay(edit, FALSE);
+						input = get_input(NULL);
+					nodelay(midwin, FALSE);
 					return -2;
 				}
 
-				input = wgetch(edit);
+				input = wgetch(midwin);
 			}
 
 			if (++feedback > 0)
@@ -306,7 +309,7 @@ int findnextstr(const char *needle, bool whole_word_only, int modus,
 
 	found_x = found - line->data;
 
-	nodelay(edit, FALSE);
+	nodelay(midwin, FALSE);
 
 	/* Ensure that the found occurrence is not beyond the starting x. */
 	if (came_full_circle && ((!ISSET(BACKWARDS_SEARCH) && (found_x > begin_x ||
@@ -327,9 +330,7 @@ int findnextstr(const char *needle, bool whole_word_only, int modus,
 		spotlighted = TRUE;
 		light_from_col = xplustabs();
 		light_to_col = wideness(line->data, found_x + found_len);
-		if (!ISSET(SHOW_CURSOR))
-			hide_cursor = TRUE;
-		edit_refresh();
+		refresh_needed = TRUE;
 	}
 #endif
 
@@ -555,7 +556,7 @@ ssize_t do_replace_loop(const char *needle, bool whole_word_only,
 	came_full_circle = FALSE;
 
 	while (TRUE) {
-		int choice = 0;
+		int choice = NO;
 		int result = findnextstr(needle, whole_word_only, modus,
 						&match_len, skipone, real_current, *real_current_x);
 
@@ -591,21 +592,21 @@ ssize_t do_replace_loop(const char *needle, bool whole_word_only,
 			edit_refresh();
 
 			/* TRANSLATORS: This is a prompt. */
-			choice = do_yesno_prompt(TRUE, _("Replace this instance?"));
+			choice = ask_user(YESORALLORNO, _("Replace this instance?"));
 
 			spotlighted = FALSE;
 
-			if (choice == -1)  /* The replacing was cancelled. */
+			if (choice == CANCEL)
 				break;
-			else if (choice == 2)
-				replaceall = TRUE;
+
+			replaceall = (choice == ALL);
 
 			/* When "No" or moving backwards, the search routine should
 			 * first move one character further before continuing. */
 			skipone = (choice == 0 || ISSET(BACKWARDS_SEARCH));
 		}
 
-		if (choice == 1 || replaceall) {  /* Yes, replace it. */
+		if (choice == YES || replaceall) {
 			size_t length_change;
 			char *altered;
 
@@ -659,6 +660,10 @@ ssize_t do_replace_loop(const char *needle, bool whole_word_only,
 			free(openfile->current->data);
 			openfile->current->data = altered;
 
+#ifdef ENABLE_COLOR
+			check_the_multis(openfile->current);
+			refresh_needed = FALSE;
+#endif
 			set_modified();
 			as_an_at = TRUE;
 			numreplaced++;
@@ -706,7 +711,7 @@ void ask_for_and_do_replacements(void)
 #ifdef ENABLE_HISTORIES
 	/* When not "", add the replace string to the replace history list. */
 	if (response == 0)
-		update_history(&replace_history, answer);
+		update_history(&replace_history, answer, PRUNE_DUPLICATE);
 #endif
 
 	/* When cancelled, or when a function was run, get out. */
@@ -724,7 +729,7 @@ void ask_for_and_do_replacements(void)
 	openfile->current = beginline;
 	openfile->current_x = begin_x;
 
-	edit_refresh();
+	refresh_needed = TRUE;
 
 	if (numreplaced >= 0)
 		statusline(REMARK, P_("Replaced %zd occurrence",
@@ -734,6 +739,12 @@ void ask_for_and_do_replacements(void)
 /* Go to the specified line and x position. */
 void goto_line_posx(ssize_t line, size_t pos_x)
 {
+#ifdef ENABLE_COLOR
+	if (line > openfile->edittop->lineno + editwinrows ||
+				(ISSET(SOFTWRAP) && line > openfile->current->lineno))
+		recook |= perturbed;
+#endif
+
 	for (openfile->current = openfile->filetop; line > 1 &&
 				openfile->current != openfile->filebot; line--)
 		openfile->current = openfile->current->next;
@@ -747,8 +758,8 @@ void goto_line_posx(ssize_t line, size_t pos_x)
 /* Go to the specified line and column, or ask for them if interactive
  * is TRUE.  In the latter case also update the screen afterwards.
  * Note that both the line and column number should be one-based. */
-void do_gotolinecolumn(ssize_t line, ssize_t column, bool retain_answer,
-		bool interactive)
+void goto_line_and_column(ssize_t line, ssize_t column, bool retain_answer,
+							bool interactive)
 {
 	if (interactive) {
 		/* Ask for the line and column. */
@@ -792,6 +803,12 @@ void do_gotolinecolumn(ssize_t line, ssize_t column, bool retain_answer,
 	if (line < 1)
 		line = 1;
 
+#ifdef ENABLE_COLOR
+	if (line > openfile->edittop->lineno + editwinrows ||
+				(ISSET(SOFTWRAP) && line > openfile->current->lineno))
+		recook |= perturbed;
+#endif
+
 	/* Iterate to the requested line. */
 	for (openfile->current = openfile->filetop; line > 1 &&
 				openfile->current != openfile->filebot; line--)
@@ -844,9 +861,9 @@ void do_gotolinecolumn(ssize_t line, ssize_t column, bool retain_answer,
 }
 
 /* Go to the specified line and column, asking for them beforehand. */
-void do_gotolinecolumn_void(void)
+void do_gotolinecolumn(void)
 {
-	do_gotolinecolumn(openfile->current->lineno,
+	goto_line_and_column(openfile->current->lineno,
 						openfile->placewewant + 1, FALSE, TRUE);
 }
 
@@ -994,6 +1011,11 @@ void go_to_and_confirm(linestruct *line)
 	if (line != openfile->current) {
 		openfile->current = line;
 		openfile->current_x = 0;
+#ifdef ENABLE_COLOR
+		if (line->lineno > openfile->edittop->lineno + editwinrows ||
+					(ISSET(SOFTWRAP) && line->lineno > was_current->lineno))
+			recook |= perturbed;
+#endif
 		edit_redraw(was_current, CENTERING);
 		statusbar(_("Jumped to anchor"));
 	} else if (openfile->current->has_anchor)

src/text.c

@@ -1,7 +1,7 @@
 /**************************************************************************
  *   text.c  --  This file is part of GNU nano.                           *
  *                                                                        *
- *   Copyright (C) 1999-2011, 2013-2021 Free Software Foundation, Inc.    *
+ *   Copyright (C) 1999-2011, 2013-2022 Free Software Foundation, Inc.    *
  *   Copyright (C) 2014-2015 Mark Majeres                                 *
  *   Copyright (C) 2016 Mike Scalora                                      *
  *   Copyright (C) 2016 Sumedh Pendurkar                                  *
@@ -558,7 +558,8 @@ void do_undo(void)
 		 * and the nonewlines flag isn't set, do not re-add a newline that
 		 * wasn't actually deleted; just position the cursor. */
 		if ((u->xflags & WAS_BACKSPACE_AT_EOF) && !ISSET(NO_NEWLINES)) {
-			goto_line_posx(openfile->filebot->lineno, 0);
+			openfile->current = openfile->filebot;
+			openfile->current_x = 0;
 			break;
 		}
 		line->data[u->tail_x] = '\0';
@@ -665,6 +666,13 @@ void do_undo(void)
 
 	openfile->totsize = u->wassize;
 
+#ifdef ENABLE_COLOR
+	if (u->type <= REPLACE)
+		check_the_multis(openfile->current);
+	else if (u->type == INSERT)
+		perturbed = TRUE;
+#endif
+
 	/* When at the point where the buffer was last saved, unset "Modified". */
 	if (openfile->current_undo == openfile->last_saved) {
 		openfile->modified = FALSE;
@@ -825,6 +833,13 @@ void do_redo(void)
 
 	openfile->totsize = u->newsize;
 
+#ifdef ENABLE_COLOR
+	if (u->type <= REPLACE)
+		check_the_multis(openfile->current);
+	else if (u->type == INSERT)
+		recook = TRUE;
+#endif
+
 	/* When at the point where the buffer was last saved, unset "Modified". */
 	if (openfile->current_undo == openfile->last_saved) {
 		openfile->modified = FALSE;
@@ -1177,7 +1192,8 @@ void update_undo(undo_type action)
 		else if (cutbuffer != NULL) {
 			free_lines(u->cutbuffer);
 			u->cutbuffer = copy_buffer(cutbuffer);
-		}
+		} else
+			break;
 		if (!(u->xflags & MARK_WAS_SET)) {
 			linestruct *bottomline = u->cutbuffer;
 			size_t count = 0;
@@ -1212,9 +1228,9 @@ void update_undo(undo_type action)
 
 #ifdef ENABLE_WRAPPING
 /* When the current line is overlong, hard-wrap it at the furthest possible
- * whitespace character, and (if possible) prepend the remainder of the line
- * to the next line.  Return TRUE if wrapping occurred, and FALSE otherwise. */
-bool do_wrap(void)
+ * whitespace character, and prepend the excess part to an "overflow" line
+ * (when it already exists, otherwise create one). */
+void do_wrap(void)
 {
 	linestruct *line = openfile->current;
 		/* The line to be wrapped, if needed and possible. */
@@ -1243,7 +1259,7 @@ bool do_wrap(void)
 
 	/* If no wrapping point was found before end-of-line, we don't wrap. */
 	if (wrap_loc < 0 || lead_len + wrap_loc == line_len)
-		return FALSE;
+		return;
 
 	/* Adjust the wrap location to its position in the full line,
 	 * and step forward to the character just after the blank. */
@@ -1251,7 +1267,7 @@ bool do_wrap(void)
 
 	/* When now at end-of-line, no need to wrap. */
 	if (line->data[wrap_loc] == '\0')
-		return FALSE;
+		return;
 
 #ifndef NANO_TINY
 	add_undo(SPLIT_BEGIN, NULL);
@@ -1360,7 +1376,7 @@ bool do_wrap(void)
 	add_undo(SPLIT_END, NULL);
 #endif
 
-	return TRUE;
+	refresh_needed = TRUE;
 }
 #endif /* ENABLE_WRAPPING */
 
@@ -1465,9 +1481,8 @@ bool begpar(const linestruct *const line, int depth)
 {
 	size_t quot_len, indent_len, prev_dent_len;
 
-	/* If this is the very first line of the buffer, it counts as a BOP
-	 * even when it contains no text. */
-	if (line == openfile->filetop)
+	/* The very first line counts as a BOP, even when it contains no text. */
+	if (line->prev == NULL)
 		return TRUE;
 
 	/* If recursion is going too deep, just say it's not a BOP. */
@@ -1746,6 +1761,8 @@ void justify_text(bool whole_buffer)
 		/* The leading part for lines after the first one. */
 	size_t secondary_len = 0;
 		/* The length of that later lead. */
+	ssize_t was_the_linenumber = openfile->current->lineno;
+		/* The line to return to after a full justification. */
 
 	/* TRANSLATORS: This one goes with Undid/Redid messages. */
 	add_undo(COUPLE_BEGIN, N_("justification"));
@@ -1962,7 +1979,8 @@ void justify_text(bool whole_buffer)
 		openfile->current_x = openfile->mark_x;
 		openfile->mark = bottom;
 		openfile->mark_x = bottom_x;
-	}
+	} else if (whole_buffer && !openfile->mark)
+		goto_line_posx(was_the_linenumber, 0);
 
 	add_undo(COUPLE_END, N_("justification"));
 
@@ -2032,11 +2050,19 @@ bool replace_buffer(const char *filename, undo_type action, const char *operatio
 	if (descriptor < 0)
 		return FALSE;
 
+#ifndef NANO_TINY
+	add_undo(COUPLE_BEGIN, operation);
+#endif
+
+	/* When replacing the whole buffer, start cutting at the top. */
+	if (action == CUT_TO_EOF) {
+		openfile->current = openfile->filetop;
+		openfile->current_x = 0;
+	}
+
 	cutbuffer = NULL;
 
 #ifndef NANO_TINY
-	add_undo(COUPLE_BEGIN, operation);
-
 	/* Cut either the marked region or the whole buffer. */
 	add_undo(action, NULL);
 	do_snip(openfile->mark != NULL, openfile->mark == NULL, FALSE);
@@ -2061,6 +2087,7 @@ bool replace_buffer(const char *filename, undo_type action, const char *operatio
 /* Execute the given program, with the given temp file as last argument. */
 void treat(char *tempfile_name, char *theprogram, bool spelling)
 {
+#if defined(HAVE_FORK) && defined(HAVE_WAIT)
 	ssize_t was_lineno = openfile->current->lineno;
 	size_t was_pww = openfile->placewewant;
 	size_t was_x = openfile->current_x;
@@ -2155,14 +2182,9 @@ void treat(char *tempfile_name, char *theprogram, bool spelling)
 		openfile->mark = line_from_number(was_mark_lineno);
 	} else
 #endif
-	{
-		openfile->current = openfile->filetop;
-		openfile->current_x = 0;
-
 		replaced = replace_buffer(tempfile_name, CUT_TO_EOF,
 					/* TRANSLATORS: The next two go with Undid/Redid messages. */
 					(spelling ? N_("spelling correction") : N_("formatting")));
-	}
 
 	/* Go back to the old position. */
 	goto_line_posx(was_lineno, was_x);
@@ -2183,6 +2205,7 @@ void treat(char *tempfile_name, char *theprogram, bool spelling)
 		statusline(REMARK, _("Finished checking spelling"));
 	else
 		statusline(REMARK, _("Buffer has been processed"));
+#endif
 }
 #endif /* ENABLE_SPELLER || ENABLE_COLOR */
 
@@ -2295,12 +2318,14 @@ bool fix_spello(const char *word)
  * correction. */
 void do_int_speller(const char *tempfile_name)
 {
+#if defined(HAVE_FORK) && defined(HAVE_WAITPID)
 	char *misspellings, *pointer, *oneword;
 	long pipesize;
 	size_t buffersize, bytesread, totalread;
 	int spell_fd[2], sort_fd[2], uniq_fd[2], tempfile_fd = -1;
 	pid_t pid_spell, pid_sort, pid_uniq;
 	int spell_status, sort_status, uniq_status;
+	unsigned stash[sizeof(flags) / sizeof(flags[0])];
 
 	/* Create all three pipes up front. */
 	if (pipe(spell_fd) == -1 || pipe(sort_fd) == -1 || pipe(uniq_fd) == -1) {
@@ -2425,6 +2450,9 @@ void do_int_speller(const char *tempfile_name)
 	terminal_init();
 	doupdate();
 
+	/* Save the settings of the global flags. */
+	memcpy(stash, flags, sizeof(flags));
+
 	/* Do any replacements case-sensitively, forward, and without regexes. */
 	SET(CASE_SENSITIVE);
 	UNSET(BACKWARDS_SEARCH);
@@ -2455,6 +2483,9 @@ void do_int_speller(const char *tempfile_name)
 	free(misspellings);
 	refresh_needed = TRUE;
 
+	/* Restore the settings of the global flags. */
+	memcpy(flags, stash, sizeof(flags));
+
 	/* Process the end of the three processes. */
 	waitpid(pid_spell, &spell_status, 0);
 	waitpid(pid_sort, &sort_status, 0);
@@ -2468,6 +2499,7 @@ void do_int_speller(const char *tempfile_name)
 		statusline(ALERT, _("Error invoking \"spell\""));
 	else
 		statusline(REMARK, _("Finished checking spelling"));
+#endif
 }
 
 /* Spell check the current file.  If an alternate spell checker is
@@ -2476,7 +2508,6 @@ void do_spell(void)
 {
 	FILE *stream;
 	char *temp_name;
-	unsigned stash[sizeof(flags) / sizeof(flags[0])];
 	bool okay;
 
 	ran_a_tool = TRUE;
@@ -2491,12 +2522,6 @@ void do_spell(void)
 		return;
 	}
 
-	/* Save the settings of the global flags. */
-	memcpy(stash, flags, sizeof(flags));
-
-	/* Don't add an extra newline when writing out the (selected) text. */
-	SET(NO_NEWLINES);
-
 #ifndef NANO_TINY
 	if (openfile->mark)
 		okay = write_region_to_file(temp_name, stream, TEMPORARY, OVERWRITE);
@@ -2506,6 +2531,7 @@ void do_spell(void)
 
 	if (!okay) {
 		statusline(ALERT, _("Error writing temp file: %s"), strerror(errno));
+		unlink(temp_name);
 		free(temp_name);
 		return;
 	}
@@ -2520,9 +2546,6 @@ void do_spell(void)
 	unlink(temp_name);
 	free(temp_name);
 
-	/* Restore the settings of the global flags. */
-	memcpy(flags, stash, sizeof(flags));
-
 	/* Ensure the help lines will be redrawn and a selection is retained. */
 	currmenu = MMOST;
 	shift_held = TRUE;
@@ -2533,6 +2556,7 @@ void do_spell(void)
 /* Run a linting program on the current buffer. */
 void do_linter(void)
 {
+#if defined(HAVE_FORK) && defined(HAVE_WAITPID)
 	char *lintings, *pointer, *onelint;
 	long pipesize;
 	size_t buffersize, bytesread, totalread;
@@ -2559,12 +2583,12 @@ void do_linter(void)
 	edit_refresh();
 
 	if (openfile->modified) {
-		int choice = do_yesno_prompt(FALSE, _("Save modified buffer before linting?"));
+		int choice = ask_user(YESORNO, _("Save modified buffer before linting?"));
 
-		if (choice == -1) {
+		if (choice == CANCEL) {
 			statusbar(_("Cancelled"));
 			return;
-		} else if (choice == 1 && (do_writeout(FALSE, FALSE) != 1))
+		} else if (choice == YES && (write_it_out(FALSE, FALSE) != 1))
 			return;
 	}
 
@@ -2648,36 +2672,31 @@ void do_linter(void)
 		if ((*pointer == '\r') || (*pointer == '\n')) {
 			*pointer = '\0';
 			if (onelint != pointer) {
-				char *filename = NULL, *linestr = NULL, *maybecol = NULL;
-				char *message = copy_of(onelint);
+				char *filename, *linestring, *colstring;
+				char *complaint = copy_of(onelint);
+				char *spacer = strstr(complaint, " ");
 
 				/* The recognized format is "filename:line:column: message",
 				 * where ":column" may be absent or be ",column" instead. */
-				if (strstr(message, ": ") != NULL) {
-					filename = strtok(onelint, ":");
-					if ((linestr = strtok(NULL, ":")) != NULL) {
-						if ((maybecol = strtok(NULL, ":")) != NULL) {
-							ssize_t tmplineno = 0, tmpcolno = 0;
-							char *tmplinecol;
+				if ((filename = strtok(onelint, ":")) && spacer) {
+					if ((linestring = strtok(NULL, ":"))) {
+						if ((colstring = strtok(NULL, " "))) {
+							ssize_t linenumber = strtol(linestring, NULL, 10);
+							ssize_t colnumber = strtol(colstring, NULL, 10);
 
-							tmplineno = strtol(linestr, NULL, 10);
-							if (tmplineno <= 0) {
+							if (linenumber <= 0) {
+								free(complaint);
 								pointer++;
-								free(message);
 								continue;
 							}
 
-							tmpcolno = strtol(maybecol, NULL, 10);
-							/* Check if the middle field is in comma format. */
-							if (tmpcolno <= 0) {
-								strtok(linestr, ",");
-								if ((tmplinecol = strtok(NULL, ",")) != NULL)
-									tmpcolno = strtol(tmplinecol, NULL, 10);
-								else
-									tmpcolno = 1;
+							if (colnumber <= 0) {
+								colnumber = 1;
+								strtok(linestring, ",");
+								if ((colstring = strtok(NULL, ",")))
+									colnumber = strtol(colstring, NULL, 10);
 							}
 
-							/* Nice.  We have a lint message we can use. */
 							parsesuccess = TRUE;
 							tmplint = curlint;
 							curlint = nmalloc(sizeof(lintstruct));
@@ -2685,17 +2704,17 @@ void do_linter(void)
 							curlint->prev = tmplint;
 							if (curlint->prev != NULL)
 								curlint->prev->next = curlint;
-							curlint->msg = copy_of(strstr(message, ": ") + 2);
-							curlint->lineno = tmplineno;
-							curlint->colno = tmpcolno;
 							curlint->filename = copy_of(filename);
+							curlint->lineno = linenumber;
+							curlint->colno = colnumber;
+							curlint->msg = copy_of(spacer + 1);
 
 							if (lints == NULL)
 								lints = curlint;
 						}
 					}
 				}
-				free(message);
+				free(complaint);
 			}
 			onelint = pointer + 1;
 		}
@@ -2718,7 +2737,7 @@ void do_linter(void)
 		return;
 	}
 
-	if (helpless && LINES > 4) {
+	if (helpless && LINES > 5) {
 		UNSET(NO_HELP);
 		window_init();
 	}
@@ -2753,14 +2772,14 @@ void do_linter(void)
 
 				sprintf(msg, _("This message is for unopened file %s,"
 							" open it in a new buffer?"), curlint->filename);
-				choice = do_yesno_prompt(FALSE, msg);
+				choice = ask_user(YESORNO, msg);
 				currmenu = MLINTER;
 				free(msg);
 
-				if (choice == -1) {
+				if (choice == CANCEL) {
 					statusbar(_("Cancelled"));
 					break;
-				} else if (choice == 1) {
+				} else if (choice == YES) {
 					open_buffer(curlint->filename, TRUE);
 				} else {
 #endif
@@ -2819,9 +2838,9 @@ void do_linter(void)
 
 		/* Place the cursor to indicate the affected line. */
 		place_the_cursor();
-		wnoutrefresh(edit);
+		wnoutrefresh(midwin);
 
-		kbinput = get_kbinput(bottomwin, VISIBLE);
+		kbinput = get_kbinput(footwin, VISIBLE);
 
 #ifndef NANO_TINY
 		if (kbinput == KEY_WINCH)
@@ -2877,6 +2896,7 @@ void do_linter(void)
 	lastmessage = VACUUM;
 	currmenu = MMOST;
 	titlebar(NULL);
+#endif
 }
 
 /* Run a manipulation program on the contents of the buffer. */
@@ -2905,13 +2925,10 @@ void do_formatter(void)
 	if (temp_name != NULL)
 		okay = write_file(temp_name, stream, TEMPORARY, OVERWRITE, NONOTES);
 
-	if (!okay) {
+	if (!okay)
 		statusline(ALERT, _("Error writing temp file: %s"), strerror(errno));
-		free(temp_name);
-		return;
-	}
-
-	treat(temp_name, openfile->syntax->formatter, FALSE);
+	else
+		treat(temp_name, openfile->syntax->formatter, FALSE);
 
 	unlink(temp_name);
 	free(temp_name);
@@ -2919,9 +2936,9 @@ void do_formatter(void)
 #endif /* ENABLE_COLOR */
 
 #ifndef NANO_TINY
-/* Our own version of "wc".  Note that its character counts are in
+/* Our own version of "wc".  Note that the character count is in
  * multibyte characters instead of single-byte characters. */
-void do_wordlinechar_count(void)
+void count_lines_words_and_characters(void)
 {
 	linestruct *was_current = openfile->current;
 	size_t was_x = openfile->current_x;
@@ -2960,7 +2977,7 @@ void do_wordlinechar_count(void)
 	 * incrementing the word count for each successful step. */
 	while (openfile->current->lineno < botline->lineno ||
 				(openfile->current == botline && openfile->current_x < bot_x)) {
-		if (do_next_word(FALSE, TRUE))
+		if (do_next_word(FALSE))
 			words++;
 	}
 
@@ -2983,12 +3000,19 @@ void do_verbatim_input(void)
 	size_t count = 1;
 	char *bytes;
 
+#ifndef NANO_TINY
+	/* When barless and with cursor on bottom row, make room for the feedback. */
+	if (ISSET(ZERO) && openfile->current_y == editwinrows - 1 && LINES > 1) {
+		edit_scroll(FORWARD);
+		edit_refresh();
+	}
+#endif
 	/* TRANSLATORS: Shown when the next keystroke will be inserted verbatim. */
 	statusline(INFO, _("Verbatim Input"));
 	place_the_cursor();
 
 	/* Read in the first one or two bytes of the next keystroke. */
-	bytes = get_verbatim_kbinput(edit, &count);
+	bytes = get_verbatim_kbinput(midwin, &count);
 
 	/* When something valid was obtained, unsuppress cursor-position display,
 	 * insert the bytes into the edit buffer, and blank the status bar. */

src/utils.c

@@ -1,7 +1,7 @@
 /**************************************************************************
  *   utils.c  --  This file is part of GNU nano.                          *
  *                                                                        *
- *   Copyright (C) 1999-2011, 2013-2021 Free Software Foundation, Inc.    *
+ *   Copyright (C) 1999-2011, 2013-2022 Free Software Foundation, Inc.    *
  *   Copyright (C) 2016, 2017, 2019 Benno Schulenberg                     *
  *                                                                        *
  *   GNU nano is free software: you can redistribute it and/or modify     *
@@ -282,34 +282,26 @@ const char *strstrwrapper(const char *haystack, const char *needle,
 		return mbstrcasestr(start, needle);
 }
 
-/* This is a wrapper for the malloc() function that properly handles
- * things when we run out of memory. */
+/* Allocate the given amount of memory and return a pointer to it. */
 void *nmalloc(size_t howmuch)
 {
-	void *r = malloc(howmuch);
+	void *section = malloc(howmuch);
 
-	if (howmuch == 0)
-		die("Allocating zero bytes.  Please report a bug.\n");
-
-	if (r == NULL)
+	if (section == NULL)
 		die(_("Nano is out of memory!\n"));
 
-	return r;
+	return section;
 }
 
-/* This is a wrapper for the realloc() function that properly handles
- * things when we run out of memory. */
-void *nrealloc(void *ptr, size_t howmuch)
+/* Reallocate the given section of memory to have the given size. */
+void *nrealloc(void *section, size_t howmuch)
 {
-	void *r = realloc(ptr, howmuch);
+	section = realloc(section, howmuch);
 
-	if (howmuch == 0)
-		die("Allocating zero bytes.  Please report a bug.\n");
-
-	if (r == NULL)
+	if (section == NULL)
 		die(_("Nano is out of memory!\n"));
 
-	return r;
+	return section;
 }
 
 /* Return an appropriately reallocated dest string holding a copy of src.

syntax/Makefile.am

@@ -36,13 +36,12 @@ pkgdata_DATA =	asm.nanorc \
 		tcl.nanorc \
 		tex.nanorc \
 		texinfo.nanorc \
-		xml.nanorc
+		xml.nanorc \
+		yaml.nanorc
 
 nobase_pkgdata_DATA = \
 		extra/ada.nanorc \
-		extra/debian.nanorc \
 		extra/fortran.nanorc \
-		extra/gentoo.nanorc \
 		extra/haskell.nanorc \
 		extra/povray.nanorc \
 		extra/spec.nanorc

syntax/asm.nanorc

@@ -11,8 +11,8 @@ color brightyellow "\.(ascii|asciz|byte|double|float|hword|int|long|short|single
 color brightred "^[[:blank:]]*[.0-9A-Za-z_]*:"
 color brightcyan "^[[:blank:]]*#[[:blank:]]*(define|undef|include|ifn?def|endif|elif|else|if|warning|error)"
 
-# Strings.
-color brightyellow "<[^= 	]*>" ""(\\.|[^"])*""
+# Strings and names of included files.
+color brightyellow ""([^"\]|\\.)*"|<[^= 	]*>"
 
 # Comments.
 color brightblue "//.*"

syntax/autoconf.nanorc

@@ -17,7 +17,7 @@ color cyan "\<[[:upper:]_[:digit:]]+\>"
 color red "\<[-_.0-9]+\>"
 
 # Strings:
-color red ""[^"]*""  "'[^']*'"
+color red ""[^"]*"|'[^']*'"
 
 # Backticks:
 color green "`[^`]*`"

syntax/awk.nanorc

@@ -29,9 +29,9 @@ color magenta "\<(and|compl|lshift|or|rshift|xor)\>"
 color magenta "\<(bindtextdomain|dcgettext|dcngettext)\>"
 
 # Strings.
-color brightyellow "<[^= 	]*>" ""(\\.|[^"])*""
+color brightyellow ""([^"\]|\\.)*""
 # Comments.
-color brightblue "(^|[[:blank:]])#.*$"
+color brightblue "(^|[[:blank:]])#.*"
 
 # Trailing whitespace.
 color ,green "[[:space:]]+$"

syntax/c.nanorc

@@ -23,17 +23,16 @@ color brightyellow "\<(try|throw|catch|operator|new|delete)\>"
 color magenta "\<(break|continue|goto|return)\>"
 
 # Single-quoted stuff (characters, backslash escapes, hex and octal byte codes).
-color brightmagenta "'([^'\]|\\(["'\abfnrtv]|x[0-9A-Fa-f]{1,2}|[0-3]?[0-7]{1,2}))'"
+color brightmagenta "'([^'\]|\\(["'\abfnrtv]|x[[:xdigit:]]{1,2}|[0-3]?[0-7]{1,2}))'"
 
 # GCC builtins.
-color cyan "__attribute__[[:blank:]]*\(\([^)]*\)\)" "__(aligned|asm|builtin|hidden|inline|packed|restrict|section|typeof|weak)__"
+color cyan "__attribute__[[:blank:]]*\(\([^)]*\)\)|__(aligned|asm|builtin|hidden|inline|packed|restrict|section|typeof|weak)__"
 
-# Strings.  (In general you will want your strings and comments to come last,
-# because highlighting rules are applied in the order they are read in.)
-color brightyellow ""([^"]|\\")*"" "#[[:blank:]]*include[[:blank:]]*<[^>]+>"
+# Strings and names of included files.
+color brightyellow ""([^"]|\\")*"|#[[:blank:]]*include[[:blank:]]*<[^>]+>"
 
 # Preprocessor directives.
-color brightcyan start="^[[:blank:]]*#[[:blank:]]*(if(n?def)?|elif|warning|error|pragma)\>" end="(\`|[^\\])$"
+color brightcyan start="^[[:blank:]]*#[[:blank:]]*(if(n?def)?|elif|warning|error|pragma)\>" end="(\`|[^\])$"
 color brightcyan "^[[:blank:]]*#[[:blank:]]*((define|else|endif|include(_next)?|line|undef)\>|$)"
 
 # Comments.

syntax/changelog.nanorc

@@ -13,13 +13,13 @@ color red "^(19|20)[0-9-]{8}"
 color yellow "<[^>]*@[^>]*>"
 
 # Command-line options.
-color cyan "[[:blank:]]-[a-zA-Z\$]" "--[8a-z-]+"
+color cyan "[[:blank:]]-[a-zA-Z\$]|--[8a-z-]+"
 # Bug and patch numbers.
-color cyan "(BZ|bug|patch)[ ]#[0-9]+" "PR [[:alnum:]]+/[0-9]+"
+color cyan "(BZ|bug|patch)[ ]#[0-9]+|PR [[:alnum:]]+/[0-9]+"
 # Probable constants, for variety.
 color brightred "\<[A-Z_][0-9A-Z_]+\>"
 # Key sequences.
-color brightblue "\^[A-Z^\]" "\<M-." "\<F1?[0-9]" "(\^|M-)Space"
+color brightblue "\^[A-Z^\]|\<M-.|\<F1?[0-9]|(\^|M-)Space"
 
 # Changed files.
 color magenta start="^(	| {8})\* " end="(:( |$)|^$)"

syntax/cmake.nanorc

@@ -15,5 +15,8 @@ icolor brightred "^[[:blank:]]*((end)?(function|macro)|return)"
 icolor cyan start="\$(ENV)?\{" end="\}"
 color magenta "\<(APPLE|UNIX|WIN32|CYGWIN|BORLAND|MINGW|MSVC(_IDE|60|71|80|90)?)\>"
 
+# Comments.
 color brightblue "(^|[[:blank:]])#.*"
+
+# Trailing whitespace.
 color ,green "[[:space:]]+$"

syntax/css.nanorc

@@ -4,17 +4,17 @@ syntax css "\.css$"
 comment "/*|*/"
 
 # First make everything red:
-color brightred     "."
+color brightred "."
 # Then everything between braces yellow:
-color brightyellow  start="\{" end="\}"
+color brightyellow start="\{" end="\}"
 # Then everything after a colon white:
-color brightwhite   start=":" end="([;^{]|$)"
+color brightwhite start=":" end="([;^{]|$)"
 
 # Pseudo-classes:
-color brightcyan   ":(active|checked|focus|hover|link|visited|after|before)\>"
+color brightcyan ":(active|checked|focus|hover|link|visited|after|before)\>"
 
 # Comments:
-color brightblue    start="/\*" end="\*/"
+color brightblue start="/\*" end="\*/"
 
 # Syntactic characters:
-color green         ";|:|\{|\}"
+color green ";|:|\{|\}"

syntax/default.nanorc

@@ -4,20 +4,27 @@
 syntax default
 comment "#"
 
-# Comments.
-color cyan "^[[:blank:]]*#.*"
-
 # Spaces in front of tabs.
 color ,red " +	+"
 
-# Nano's name, including version.
-color brightred "(GNU )?[Nn]ano [1-5]\.[0-9][-.[:alnum:]]*\>"
+# Nano's release motto, then name plus version.
+color italic,lime "\<[Nn]ano [1-6]\.[0-9][-.[:alnum:]]* "[^"]+""
+color brightred "\<(GNU )?[Nn]ano [1-6]\.[0-9][-.[:alnum:]]*\>"
+
+# Dates
+color latte "\<[12][0-9]{3}\.(0[1-9]|1[012])\.(0[1-9]|[12][0-9]|3[01])\>"
 
 # Email addresses.
 color magenta "<[[:alnum:].%_+-]+@[[:alnum:].-]+\.[[:alpha:]]{2,}>"
 
+# URLs.
+color lightblue "\<https?://\S+\.\S+[^[:space:],.)]"
+
 # Bracketed captions in certain config files.
 color brightgreen "^\[[^][]+\]$"
 
+# Comments.
+color cyan "^[[:blank:]]*#.*"
+
 # Control codes.
-color latte "[[:cntrl:]]"
+color orange "[[:cntrl:]]"

syntax/elisp.nanorc

@@ -28,6 +28,6 @@ color brightred "\<(t|nil)\>"
 color blue ":(\w|[?-])+"
 # Strings
 color yellow start="^[[:blank:]]+"" end="[^\]""
-color yellow ""(\\.|[^"])*""
+color yellow ""([^"\]|\\.)*""
 # Comments
 color cyan "(^|[[:blank:]]);.*"

syntax/email.nanorc

@@ -11,7 +11,7 @@ color yellow "^> ?> ?>.*"
 color brightmagenta "<[^@]+@[^@]+>"
 
 # URLs.
-color brightblue "(https?|ftp)://\S+\.\S+[^\s.)]"
+color brightblue "(https?|ftp)://\S+\.\S+[^[:space:].)]"
 
 # Signatures, even quoted ones.
 color yellow start="^>* ?-- $" end="^>* ?$"

syntax/extra/ada.nanorc

@@ -30,7 +30,7 @@ color cyan "'[[:alnum:]]+"
 color green "\<[0-9][0-9A-Fa-f_#.+-]*"
 
 # Characters / Strings
-color red "'.'" ""[^"]*""
+color red "'.'|"[^"]*""
 
 # Comments
 color brightblue "--.*"

syntax/extra/debian.nanorc

@@ -1,21 +0,0 @@
-## Syntax highlighting for apt's sources.list.
-
-syntax sources.list "sources\.list(\.d/.*\.list)?(~|\.old|\.save)?$"
-comment "#"
-
-# Coloring the deb lines, working from tail to head.  First the
-# components -- well, everything, and thus also the components.
-color brightmagenta "^deb.*"
-# Distribution -- well, everything, except the components.
-color brightred "^deb(-src)?\s+.*((ftp|https?|rsh|ssh|copy|file|spacewalk|tor):/\S+|cdrom:\[.+\]/)\s+\S+"
-# URIs.
-color brightgreen "^deb(-src)?\s+.*(ftp|https?|rsh|ssh|copy|file|spacewalk|tor):/\S+"
-# CDroms.
-color brightgreen "^deb(-src)?\s+.*cdrom:\[.+\]/"
-# Options.
-color brightcyan "^deb(-src)?\s+\[.+\]\s+"
-# And finally the initial deb tag.
-color yellow "^deb(-src)?"
-
-# Comments.
-color brightblue "#.*"

syntax/extra/fortran.nanorc

@@ -34,7 +34,7 @@ icolor yellow "\<(.or.|repeat|select case|then|where|while)\>"
 icolor magenta "\<(continue|cycle|exit|go?to|result|return)\>"
 
 # Strings.
-color yellow "<[^= 	]*>" ""(\\.|[^"])*""
+color yellow ""([^"\]|\\.)*""
 
 # Comments.
 color blue "!.*"

syntax/extra/gentoo.nanorc

@@ -1,74 +0,0 @@
-## Syntax highlighting for Gentoo ebuilds/eclasses,
-## and (further down) for Portage control files.
-
-syntax ebuild "\.e(build|class)$"
-comment "#"
-
-## All the standard portage functions:
-color brightgreen "(^|\<default_)src_(unpack|prepare|configure|compile|install|test)\>"
-color brightgreen "^pkg_(config|nofetch|info|pretend|setup|(pre|post)(inst|rm))\>"
-color brightgreen "\<default(_pkg_nofetch|_src_(unpack|prepare|configure|compile|test))?\>"
-## Bash-related syntax:
-color green "\<(break|case|continue|do|done|elif|else|esac|exit|fi|for|function|if|in|read|return|select|shift|then|time|until|while)\>"
-color green "\<(declare|eval|exec|export|let|local)\>"
-color green "[{}():;|`$<>!=&\\]" "(\]|\[)"
-color green "-[defhnrsuwxzL]\>"
-color green "-(eq|ne|gt|lt|ge|le)\>"
-## Variables... official portage ones in red, all others in bright red:
-color brightred "\$[-0-9@*#?$!]" "\$[[:alpha:]_][[:alnum:]_]*"
-color brightred "\$\{[#!]?([-@*#?$!]|[0-9]+|[[:alpha:]_][[:alnum:]_]*)(\[([[:digit:]]|@)+\])?(([#%/]|:?[-=?+])[^}]*\}|\[|\})"
-color red "\<(EAPI|ARCH|HOMEPAGE|DESCRIPTION|IUSE|SRC_URI|LICENSE|SLOT|KEYWORDS|[BIPR]?DEPEND|PROVIDE|PROPERTIES|REQUIRED_USE|RESTRICT|USERLAND)\>"
-color red "\<(S|E?D|T|PV|PF|P|PN|PR|PVR|A|CATEGORY|DISTDIR|FILESDIR|EPREFIX|(B|E|E?SYS)?ROOT|WORKDIR)\>"
-color red "\<(AS|C(PP|XX)?|LD)FLAGS\>" "\<C(HOST|TARGET|BUILD)\>" "\<(MERGE_TYPE|REPLACING_VERSIONS|REPLACED_BY_VERSION)\>"
-color red "\<EBUILD_PHASE(_FUNC)?\>"
-color red "\<QA_((TEXTRELS|EXECSTACK|WX_LOAD)(_[a-zA-Z_0-9]+)?|DT_HASH|PRESTRIPPED)\>"
-color red "\<(PATCHES|(HTML_)?DOCS)\>" "\<WANT_(AUTO(CONF|MAKE)|LIBTOOL)\>" "\<AT_M4DIR\>"
-## Portage commands:
-color magenta "\<(use(_(with|enable|if_iuse)|x)?|in_iuse) [!a-zA-Z0-9_+ -]*" "inherit.*"
-color brightblue "\<e(apply(_user)?|begin|end|conf|install|make|ninja|qmake5|ant|(qa)?warn|infon?|error|log|patch(_user)?|new(group|user))\>"
-color brightblue "\<e(pause|beep|mktemp|(cvs|svn)_clean|punt_cxx)\>" "\<e(aclocal|auto(reconf|header|conf|make)|libtoolize)\>"
-color brightblue "\<e(stack|shopts|umask)_(push|pop)\>" "\<get_libdir\>" "\<ver_(cut|rs|test)\>" "\<version_is_at_least\>"
-color brightblue "\<make_desktop_entry\>" "\<unpack(_(makeself|pdv))?\>"
-color brightblue "\<(die|hasv?|inherit|nonfatal)\>" "\<(use(_(with|enable|if_iuse)|x)?|in_iuse)\>" "\<(has|best)_version\>"
-color brightblue "\<(do|new)(ins|s?bin|doc|header|lib(\.so|\.a)?|man|info|exe|initd|confd|envd|pam|menu|icon)\>"
-color brightblue "\<do(compress|dir|html|mo|strip|sym)\>" "\<keepdir\>"
-color brightblue "\<prepall(docs|info|man|strip)?\>" "\<prep(info|lib|lib\.(so|a)|man|strip)\>"
-color brightblue "\<(doc|ins|exe)?into\>" "\<f(owners|perms)\>" "\<(exe|ins|dir)opts\>"
-color brightblue "\<tc-get(BUILD_)?(AR|AS|CC|CPP|CXX|LD|NM|OBJCOPY|PKG_CONFIG|RANLIB)\>"
-color brightblue "\<tc-(arch(-kernel)?|export|has-(tls|openmp)|is-cross-compiler)\>"
-## Common commands used in ebuilds:
-color blue "\<(awk|cat|cd|chmod|chown|cp|echo|env|find|e?grep|ln|make|mkdir|mv|popd|printf|pushd|rm|rmdir|sed|set|tar|touch|unset|xargs)\>"
-## Comments (doesn't work that well):
-color yellow "(^|[[:space:]])#.*"
-## Strings (doesn't work that well):
-color brightyellow ""(\\.|[^\"])*"" "'(\\.|[^'])*'"
-## Trailing space is bad!
-color ,green "[[:space:]]+$"
-## Mixed whitespace is also bad.
-color ,green " 	"
-
-
-syntax /etc/portage "\.(accept_keywords|env|keywords|mask|unmask|use)(/.+)?$"
-comment "#"
-
-## Base text:
-color green ".+"
-## Likely version and slot numbers:
-color magenta "-[[:digit:].]+(_(alpha|beta|pre|rc|p)[[:digit:]]*)*(-r[[:digit:]]+)?([:[:space:]]|$)"
-color magenta ":[^[:space:]]+([[:space:]]|$)"
-## Use flags (must come after version/slot):
-color brightred "[[:space:]]+\+?[A-Za-z0-9+_@-]+"
-color brightblue "[[:space:]]+-[A-Za-z0-9+_@-]+"
-## Accepted arches:
-color white "[~-]?\<(alpha|amd64|arm(64)?|hppa|ia64|m68k|mips|ppc(64)?|riscv|s390|sparc|x86)(-(cygwin|linux|macos|solaris|winnt))?\>"
-color white "[[:space:]][*~-]?\*"
-## Categories:
-color cyan "^[[:space:]]*[^/]*/"
-## Masking regulators:
-color brightmagenta "^[[:space:]]*(=|~|<|<=|>|>=)"
-## Comments:
-color yellow "#.*"
-## Trailing space is bad!
-color ,green "[[:space:]]+$"
-## Mixed whitespace is also bad.
-color ,green " 	"

syntax/extra/haskell.nanorc

@@ -28,9 +28,9 @@ color magenta "\<(Bounded|Data|Enum|Eq|Floating|Fractional|Functor|Integral|Mona
 color brightred "undefined"
 
 # Strings
-color yellow ""([^\"]|\\.)*""
+color yellow ""([^"\]|\\.)*""
 # Characters
-color brightyellow "'([^\']|\\.)'"
+color brightyellow "'([^'\]|\\.)'"
 
 # Comments
 color green "--.*"

syntax/go.nanorc

@@ -26,17 +26,16 @@ color magenta "\<(break|continue|fallthrough|goto|return)\>"
 color brightcyan "\<(package|import)\>"
 
 # Literals.
-color red "\<([1-9][0-9]*|0[0-7]*|0[xX][0-9A-Fa-f]+)\>"
+color red "\<(true|false|nil|iota|_)\>"
+color red "\<([1-9][0-9]*|0[0-7]*|0[xX][[:xdigit:]]+)\>"
 color red "\<[0-9]+\.[0-9]*([eE][+-]?[0-9]+)?i?\>"
 color red "\<[0-9]+[eE][+-]?[0-9]+i?\>"
 color red "\B\.[0-9]+([eE][+-]?[0-9]+)?i?\>"
 color red "\<[0-9]+i\>"
 
 # Strings and characters; slightly fuzzy.
-color red "\<(true|false|nil|iota|_)\>"
-color red "'(\\.|[^'])+'"
-color red ""(\\.|[^"])*""
-color red start=""(\\.|[^"])*\\[[:blank:]]*$" end="^(\\.|[^"])*""
+color red ""([^"\]|\\.)*"|'([^'\]|\\.)+'"
+color red start=""([^"\]|\\.)*\\[[:blank:]]*$" end="^([^"\]|\\.)*""
 
 # Comments.
 color brightblue "//.*"

syntax/groff.nanorc

@@ -1,25 +1,25 @@
 ## Syntax highlighting for groff.
 
-syntax groff "(/tmac\.[^/]+$|\.(m[ems]|rof|tmac)$)"
+syntax groff "\.(m[ems]|rof|tmac)$|/tmac\.[^/]+$"
 comment ".\""
 
-# The argument of .ds or .nr
+# The setting of a string or register
 color cyan "^\.(ds|nr) [^[:space:]]*"
 # Single-character escapes
 color brightmagenta "\\."
 # The argument of \f or \s in the same color
-color brightmagenta "\\f(.|\(..)" "\\s(\+|\-)?[0-9]"
-# Newlines
+color brightmagenta "\\f(.|\(..)|\\s(\+|\-)?[0-9]"
+# References to registers
 color cyan "\\(\\)?n(.|\(..)"
 color cyan start="\\(\\)?n\[" end="]"
 # Requests
 color brightgreen "^\.[[:blank:]]*[^[:space:]]*"
 # Comments
 color yellow "^\.\\".*"
-# Strings
+# References to strings
 color green "\\(\\)?\*(.|\(..)"
 color green start="\\(\\)?\*\[" end="]"
-# Characters
+# Special characters
 color brightred "\\\(.."
 color brightred start="\\\[" end="]"
 # Macro arguments

syntax/guile.nanorc

@@ -11,14 +11,13 @@ color brightcyan "\<define(-macro|-module|-public|-syntax)?\>"
 # Quoted symbols
 color brightyellow "'\<(\w|-)+\>"
 # Chars
-color brightmagenta "#\\."
-color brightmagenta "#\\\w+\>"
+color brightmagenta "#\\(.|\w+)"
 # Booleans
 color brightred "(#t|#f)\>"
 # Keywords
 color blue "#?:(\w|[?-])+"
 # Strings
 color yellow start="^[[:blank:]]+"" end="[^\]""
-color yellow ""(\\.|[^"])*""
+color yellow ""([^"\]|\\.)*""
 # Comments
 color cyan "(^|[[:blank:]]);.*"

syntax/html.nanorc

@@ -25,7 +25,7 @@ color red "\<(rows(pan)?|rules|scheme|scope|scrolling|selected|shape|size|span|s
 color red "\<(tabindex|target|text|title|type|usemap|valign|value(type)?|vlink|vspace|width|xmlns|xml:space)="
 
 # Strings:
-color green ""(\\.|[^"])*""
+color green ""([^"\]|\\.)*""
 
 # Comments:
 color yellow start="<!--" end="-->"

syntax/javascript.nanorc

@@ -12,12 +12,12 @@ color brightyellow "\<(await|export|import|throw|try|catch|finally|new|delete)\>
 color magenta "\<(break|continue|return|yield)\>"
 
 # Octal/decimal and hexadecimal numbers.
-color cyan "\<([0-9]+|0x[0-9A-Fa-f]+)\>"
+color cyan "\<([0-9]+|0x[[:xdigit:]]+)\>"
 # Special values.
 color cyan "\<(true|false|null|undefined)\>"
 
 # Strings.
-color brightmagenta ""(\\.|[^"])*"" "'(\\.|[^'])*'" "`(\\.|[^`])*`"
+color brightmagenta ""([^"\]|\\.)*"|'([^'\]|\\.)*'|`([^`\]|\\.)*`"
 # Comments.
 color brightblue "(^|[[:blank:]])//.*"
 color brightblue start="/\*" end="\*/"

syntax/json.nanorc

@@ -12,9 +12,9 @@ color green ":[[:blank:]]*\-?(0|[1-9][0-9]*)(\.[0-9]+)?([Ee]?[-+]?[0-9]+)?"
 # Values (well, any string).
 color brightmagenta "".+""
 # Hex numbers (used as value).
-color green ":[[:blank:]]*"#[0-9abcdefABCDEF]+""
+color green ":[[:blank:]]*"#[[:xdigit:]]+""
 # Escapes.
-color green "\\\\" "\\"" "\\[bfnrt]" "\\u[0-9abcdefABCDEF]{4})"
+color green "\\(["\/bfnrt]|u[[:xdigit:]]{4})"
 # Special words.
 color green "\<(true|false|null)\>"
 
@@ -22,9 +22,8 @@ color green "\<(true|false|null)\>"
 color brightblue ""[^"]+"[[:blank:]]*:"
 
 # Brackets, braces, and separators.
-color brightblue "\[" "\]"
-color brightred "\{" "\}"
-color brightred "," ":"
+color brightblue "[][]"
+color brightred "[{},:]"
 
 # Comments.
 color cyan "(^|[[:blank:]]+)(//|#).*"

syntax/lua.nanorc

@@ -45,7 +45,7 @@ color brightmagenta "\<(false|nil|true)\>"
 
 # Decimal and hexadecimal numbers
 color red "\<[0-9]+(\.[0-9]*)?([Ee][+-]?[0-9]+)?\>"
-color red "\<0x[0-9A-Fa-f]+(\.[0-9A-Fa-f]*)?([Pp][+-]?[0-9]+)?\>"
+color red "\<0x[[:xdigit:]]+(\.[[:xdigit:]]*)?([Pp][+-]?[0-9]+)?\>"
 
 # Brackets
 color brightmagenta "\(|\)|\[|\]|\{|\}"
@@ -54,7 +54,7 @@ color brightmagenta "\(|\)|\[|\]|\{|\}"
 color brightcyan "^#!.*"
 
 # Strings
-color red ""(\\.|[^"\])*"|'(\\.|[^'\])*'"
+color red ""([^"\]|\\.)*"|'([^'\]|\\.)*'"
 
 # Simple comments and multiline comments
 color green "--.*"

syntax/man.nanorc

@@ -6,10 +6,10 @@ comment ".\""
 
 # Section headers, title line, and indented paragraphs.
 color green "^\.(SH|SS|TH) .*"
-color brightgreen "^\.(SH|SS|TH) " "^\.([HIT]P)"
+color brightgreen "^\.((SH|SS|TH) |[HIT]P)"
 # Type faces, and normal paragraphs.
 color brightred "^\.(B[IR]?|I[BR]?|R[BI]|S[BM]) .*"
-color brightblue "^\.(B[IR]?|I[BR]?|R[BI]|S[BM]) " "^\.([LP]?P)$"
+color brightblue "^\.((B[IR]?|I[BR]?|R[BI]|S[BM]) |[LP]?P$)"
 # Inline type faces.
 color magenta "\\f[BIPR]"
 # Relative margins, hyperlinks, and various other stuff.

syntax/nanorc.nanorc

@@ -1,35 +1,39 @@
 ## Syntax highlighting for nanorc files.
 
-syntax nanorc "\.?nanorc(\.in)?$"
+syntax nanorc "[/.]nanorc(\.in)?$"
 comment "#"
 
 # Everything that does not get recolored is invalid
 color brightred ".*"
 
 # Color names
-color yellow "^[[:blank:]]*(i?color|set[[:blank:]]+((error|function|key|mini|number|prompt|scroller|selected|spotlight|status|stripe|title)color))[[:blank:]]+(bold,)?(italic,)?(((bright|light)?(white|black|red|blue|green|yellow|magenta|cyan))|normal|pink|purple|mauve|lagoon|mint|lime|peach|orange|latte|grey|gray)?(,(((light)?(white|black|red|blue|green|yellow|magenta|cyan))|normal|pink|purple|mauve|lagoon|mint|lime|peach|orange|latte|grey|gray))?\>"
+color yellow "^[[:blank:]]*(i?color|set[[:blank:]]+((error|function|key|mini|number|prompt|scroller|selected|spotlight|status|stripe|title)color))[[:blank:]]+(bold,)?(italic,)?(((bright|light)?(white|black|red|blue|green|yellow|magenta|cyan))|normal|pink|purple|mauve|lagoon|mint|lime|peach|orange|latte|rosy|beet|plum|sea|sky|slate|teal|sage|brown|ocher|sand|tawny|brick|crimson|grey|gray|#[[:xdigit:]]{3})?(,(((light)?(white|black|red|blue|green|yellow|magenta|cyan))|normal|pink|purple|mauve|lagoon|mint|lime|peach|orange|latte|rosy|beet|plum|sea|sky|slate|teal|sage|brown|ocher|sand|tawny|brick|crimson|grey|gray|#[[:xdigit:]]{3}))?\>"
 
-# Keywords
-color brightgreen "^[[:blank:]]*(set|unset)[[:blank:]]+(afterends|allow_insecure_backup|atblanks|autoindent|backup|boldtext|bookstyle|breaklonglines|casesensitive|constantshow|cutfromcursor|emptyline|historylog|indicator|jumpyscrolling|linenumbers|locking|magic|minibar|mouse|multibuffer|noconvert|nohelp|nonewlines|positionlog|preserve|quickblank|rawsequences|rebinddelete|regexp|saveonexit|showcursor|smarthome|softwrap|stateflags|suspendable|tabstospaces|trimblanks|unix|wordbounds|zap)\>"
+# The arguments of two special commands
+color bold,purple "^[[:blank:]]*include[[:blank:]][^"]*([[:blank:]]|$)"
+color lime "^[[:blank:]]*extendsyntax[[:blank:]]+[[:alpha:]]+[[:blank:]]+(i?color|header|magic|comment|formatter|linter|tabgives)[[:blank:]]+.*"
+
+# The arguments of commands
+color brightgreen "^[[:blank:]]*(set|unset)[[:blank:]]+(afterends|allow_insecure_backup|atblanks|autoindent|backup|boldtext|bookstyle|breaklonglines|casesensitive|constantshow|cutfromcursor|emptyline|historylog|indicator|jumpyscrolling|linenumbers|locking|magic|minibar|mouse|multibuffer|noconvert|nohelp|nonewlines|positionlog|preserve|quickblank|rawsequences|rebinddelete|regexp|saveonexit|showcursor|smarthome|softwrap|stateflags|tabstospaces|trimblanks|unix|wordbounds|zap|zero)\>"
 color brightgreen "^[[:blank:]]*set[[:blank:]]+(backupdir|brackets|errorcolor|functioncolor|keycolor|matchbrackets|minicolor|numbercolor|operatingdir|promptcolor|punct|quotestr|scrollercolor|selectedcolor|speller|spotlightcolor|statuscolor|stripecolor|titlecolor|whitespace|wordchars)[[:blank:]]+"
 color brightgreen "^[[:blank:]]*set[[:blank:]]+(fill[[:blank:]]+-?[[:digit:]]+|(guidestripe|tabsize)[[:blank:]]+[1-9][0-9]*)\>"
-color brightgreen "^[[:blank:]]*bind[[:blank:]]+((\^([A-Za-z]|[]/@\^_`-]|Space)|([Ss][Hh]-)?[Mm]-[A-Za-z]|[Mm]-([][!"#$%&'()*+,./0-9:;<=>?@\^_`{|}~-]|Space))|F([1-9]|1[0-9]|2[0-4])|Ins|Del)[[:blank:]]+([a-z]+|".*")[[:blank:]]+(main|help|search|replace(with)?|yesno|gotoline|writeout|insert|browser|whereisfile|gotodir|execute|spell|linter|all)([[:blank:]]+#|[[:blank:]]*$)"
-color brightgreen "^[[:blank:]]*unbind[[:blank:]]+((\^([A-Za-z]|[]/@\^_`-]|Space)|([Ss][Hh]-)?[Mm]-[A-Za-z]|[Mm]-([][!"#$%&'()*+,./0-9:;<=>?@\^_`{|}~-]|Space))|F([1-9]|1[0-9]|2[0-4])|Ins|Del)[[:blank:]]+(all|main|search|replace(with)?|yesno|gotoline|writeout|insert|ext(ernal)?cmd|help|spell|linter|browser|whereisfile|gotodir)([[:blank:]]+#|[[:blank:]]*$)"
-color brightgreen "^[[:blank:]]*extendsyntax[[:blank:]]+[[:alpha:]]+[[:blank:]]+(i?color|header|magic|comment|formatter|linter|tabgives)[[:blank:]]+.*"
+color brightgreen "^[[:blank:]]*bind[[:blank:]]+((\^([A-Za-z]|[]/@\^_`-]|Space)|([Ss][Hh]-)?[Mm]-[A-Za-z]|[Mm]-([][!"#$%&'()*+,./0-9:;<=>?@\^_`{|}~-]|Space))|F([1-9]|1[0-9]|2[0-4])|Ins|Del)[[:blank:]]+([a-z]+|".*")[[:blank:]]+(main|help|search|replace(with)?|yesno|gotoline|writeout|insert|execute|browser|whereisfile|gotodir|spell|linter|all)\>"
+color brightgreen "^[[:blank:]]*unbind[[:blank:]]+((\^([A-Za-z]|[]/@\^_`-]|Space)|([Ss][Hh]-)?[Mm]-[A-Za-z]|[Mm]-([][!"#$%&'()*+,./0-9:;<=>?@\^_`{|}~-]|Space))|F([1-9]|1[0-9]|2[0-4])|Ins|Del)[[:blank:]]+(main|help|search|replace(with)?|yesno|gotoline|writeout|insert|execute|browser|whereisfile|gotodir|spell|linter|all)\>"
+color brightgreen "^[[:blank:]]*extendsyntax[[:blank:]]+[[:alpha:]]+[[:blank:]]+"
 color brightgreen "^[[:blank:]]*(syntax[[:blank:]]+[^[:space:]]+|(formatter|linter)[[:blank:]]+.+)"
-color green "^[[:blank:]]*((un)?(bind|set)|include|syntax|header|magic|comment|formatter|linter|tabgives|extendsyntax)\>"
 
 # Strings
-color brightmagenta "([[:blank:]]|(start|end)=)".+"([[:blank:]]|$)"
+color brightmagenta "[[:blank:]](start=)?".+""
+
+# Commands
+color green "^[[:blank:]]*((un)?(bind|set)|include|syntax|header|magic|comment|formatter|linter|tabgives|extendsyntax)\>"
+color magenta "^[[:blank:]]*i?color\>|[[:blank:]](start=|end=)"
 
 # Control codes
 color bold,pink "[[:cntrl:]]"
 
-# Color commands
-color magenta "^[[:blank:]]*i?color\>" "\<(start|end)="
-
 # Comments
-color brightblue "(^|[[:blank:]]+)#.*"
+color brightblue "^[[:blank:]]*#.*|[[:blank:]]#.{0,2}[^[:xdigit:]].*"
 color cyan "^[[:blank:]]*##.*"
 
 # Trailing whitespace

syntax/nftables.nanorc

@@ -25,9 +25,11 @@ color cyan "(^|[[:blank:]])#.*"
 # Trailing whitespace
 color ,green "[[:space:]]+$"
 
-# Strings and others
-color yellow ""(\\.|[^"])*"" "'(\\.|[^'])*'"
-color green "[{}():;|`$<>!=&\\]" "(\]|\[)"
+# Strings
+color yellow ""([^"\]|\\.)*"|'([^'\]|\\.)*'"
+
+# Syntactic symbols
+color green "[][{}():;|`$<>!=&\]"
 
 # Basic variable names
 color brightred "(\$|@)[[:alpha:]_-][[:alnum:]_.-]*"

syntax/objc.nanorc

@@ -4,7 +4,7 @@ syntax m "\.m$"
 magic "Objective-C source"
 comment "//"
 
-# Stuffs,
+# Stuffs.
 color brightwhite "\<[A-Z_][0-9A-Z_]+\>"
 color green "\<(float|double|BOOL|bool|char|int|short|long|id|sizeof|enum|void|static|const|struct|union|typedef|extern|(un)?signed|inline)\>"
 color green "\<[[:alpha:]_][[:alnum:]_]*_t\>"
@@ -15,7 +15,7 @@ color brightgreen "\<(goto|continue|break|return)\>"
 color brightgreen "@(encode|end|implementation|interface)|selector)\>"
 
 # GCC builtins.
-color cyan "__attribute__[[:blank:]]*\(\([^)]*\)\)" "__(aligned|asm|builtin|hidden|inline|packed|restrict|section|typeof|weak)__"
+color cyan "__attribute__[[:blank:]]*\(\([^)]*\)\)|__(aligned|asm|builtin|hidden|inline|packed|restrict|section|typeof|weak)__"
 
 # Selector/method.
 color brightmagenta "(^|[[:blank:]])\[.*[[:blank:]].*\]"
@@ -24,9 +24,9 @@ color magenta "[[:alnum:]]*:"
 color white "\[[^][:blank:]]*\]"
 
 # Strings.
-color brightblack "'([^'\]|(\\["'abfnrtv\\]))'" "'\\(([0-3]?[0-7]{1,2}))'" "'\\x[0-9A-Fa-f]{1,2}'"
-color brightblack "<[^= 	]*>" ""(\\.|[^"])*""
-color brightblue "@"(\\.|[^"])*""
+color brightblack "'([^'\]|\\(["'\abfnrtv]|x[[:xdigit:]]{1,2}|[0-3]?[0-7]{1,2}))'"
+color brightblack "<[^= 	]*>|"([^"\]|\\.)*""
+color brightblue "@"([^"\]|\\.)*""
 
 # Preprocessor commands.
 color brightblue "^[[:blank:]]*#[[:blank:]]*(define|include|import|(un|ifn?)def|endif|el(if|se)|if|warning|error)"