po: update translations and regenerate POT file and PO files

The anchored "^texture" appears to have been a mistake.

Inspired-by: Tom Levy <tomlevy93@gmail.com>

ChangeLog

@@ -1,3 +1,499 @@
+Changes between v2.9.1 and v2.9.2:
+----------------------------------
+
+Benjamin Mintz (1):
+      syntax: python: add 'async', 'await', and 'nonlocal' as keywords
+
+Benno Schulenberg (62):
+      bump version numbers and add a news item for the 2.9.2 release
+      display: ensure that cursor is visible when compiled with --with-slang
+      docs: mention that the source code is best viewed with a tab size of 4
+      docs: say thanks to some fairly recent translators, and rename one
+      gnulib: pull in the fix for the missing stat include
+      gnulib: update to its current upstream state
+      help: show that "Tab" will indent, just like "Sh-Tab" will unindent
+      help: swap the order of the Complete and Comment functions
+      indenting: don't exclude last line of region when region is empty
+      indenting: keep affecting last line of marked region if it was at first
+      input: allow using <Tab> and <Shift+Tab> to (un)indent selected region
+      input: make <Ctrl+Shift+Arrow> work also when using --rebindkeypad
+      input: optimize a bit for non-shortcut keys, as they are most frequent
+      options: rename 'justifytrim' to 'trimblanks', because it has morphed
+      prompt: blank the bar when a "continue?" is answered with No or ^C
+      syntaxes: remove redundant word-boundary markers
+      syntax: javascript: add some comments, and color explicit numbers too
+      syntax: javascript: add some keywords, and sort them more logically
+      syntax: javascript: color strings differently from major keywords
+      syntax: javascript: require that a comment is preceded by whitespace
+      syntax: lua: condense some regexes, tweak comments, reorder things
+      syntax: nanorc: don't color parts of valid strings as if invalid
+      syntax: python: color also the special values 'False', 'None', 'True'
+      text: allow unindenting when not all lines are indented
+      text: keep cursor at left edge when it IS there when indenting/commenting
+      text: let a Shift-selection persist when indenting and commenting
+      text: let indenting/commenting skip the last line if its x is zero
+      text: set and reset the Modified state correctly when undoing/redoing
+      tweaks: add a separate function that actually wipes the status bar
+      tweaks: avoid incrementing a variable that won't be used again later
+      tweaks: condense or rewrap a bunch of repetitious comments
+      tweaks: condense, reword, and rewrap a bunch of comments
+      tweaks: condense some debugging code, and rewrap a line
+      tweaks: convert the indentation of the NEWS file too
+      tweaks: convert the indentation to use only tabs
+      tweaks: drop some old debugging code plus a superfluous comment
+      tweaks: elide two parameters from the get_region() function
+      tweaks: elide two variables that are used just once
+      tweaks: factor out a piece of common code
+      tweaks: fix some whitespace errors, and convert alignment tabs to spaces
+      tweaks: fold some regexes into one another, for conciseness
+      tweaks: frob four comments, and rewrap two lines
+      tweaks: invert the logic of a variable, and rename it
+      tweaks: limit the resetting of "Modified" to writing a full buffer
+      tweaks: move some frequently-used keystrokes to the top of the list
+      tweaks: remove a redundant call of renumber()
+      tweaks: remove a superfluous condition
+      tweaks: remove a superfluous placing of a terminating nul byte
+      tweaks: remove some unneeded parentheses, and shorten two function calls
+      tweaks: remove two irrelevant conditions
+      tweaks: rename three variables, for more contrast and variety
+      tweaks: reshuffle a bit of common code, moving it to an existing function
+      tweaks: reshuffle another bit of code, for conciseness
+      tweaks: rewrap some lines and some comments, and trim two others
+      tweaks: slightly rename four functions, for aptness and variety
+      tweaks: strip some debugging stuff, and condense a bit of code
+      tweaks: trim another placing of a terminating nul byte
+      tweaks: use for git the more faithful "less -x1,5" suggested by Brand
+      tweaks: use spaces for alignment also in the THANKS file
+      wrapping: delete trailing blanks upon hardwrapping, when requested
+      wrapping: keep prepending to the same next line as long as possible
+      wrapping: we're still on the same line if the next line has not changed
+
+David Lawrence Ramsey (3):
+      input: support backtab when Slang and/or --rebindkeypad is used
+      tweaks: use printf's z modifier for (s)size_t, instead of casting
+      undo: when adding text adds a magicline, an undo should remove both
+
+Liu Hao (1):
+      syntax: c: increase the color contrast of reminders like FIXME
+
+Michael Francis (1):
+      syntax: php: function and variable names can contain uppercase and digits
+
+Mike Frysinger (1):
+      syntax: javascript: add newer keywords and string syntax
+
+Tom Levy (6):
+      syntax: go: fix word boundary before dot in number literal
+      syntax: go: sign of exponent in number literal is optional
+      syntax: lua: add new and missing standard library functions
+      syntax: lua: correct the word boundaries on standard library functions
+      syntax: lua: require at least one digit for hexadecimal numbers
+      syntax: lua: support fractional part and exponent for decimal and hex
+
+
+Changes between v2.9.0 and v2.9.1:
+----------------------------------
+
+Benno Schulenberg (20):
+      build: fix compilation with --disable-browser --disable-tabcomp
+      bump version numbers and add a news item for the 2.9.1 release
+      files: always update the stat info when the entire file is written
+      files: save the marked region only when we've prompted for a file name
+      gnulib: update to its current upstream state
+      history: create the path '~/.local/share/' when it is needed
+      history: make nano's state directory accessible for the user only
+      history: save the positions file also when a record was deleted
+      input: make the macro key discoverable by giving feedback when undefined
+      linting: switch the mark off when the linter starts
+      selecting: do not cancel the softmark when the cursor is not moved
+      selecting: let a justification cancel a softmark
+      syntax: adjust the magic strings for the changes since file-5.10
+      tweaks: adjust indentation after previous change
+      tweaks: elide the 'mark_set' boolean -- the 'mark' pointer is enough
+      tweaks: rename, rewrap, and reshuffle some stuff, and frob some comments
+      tweaks: reshuffle a couple of lines, and frob a comment or two
+      tweaks: reshuffle a couple of lines, to put similar things together
+      undo: clear the Modified state when the very first edit is undone
+      undo: discarding the stack does not always lose information
+
+
+Changes between v2.8.7 and v2.9.0:
+----------------------------------
+
+Benno Schulenberg (103):
+      bindings: don't allow calling help when searching in the help viewer
+      bindings: make ^Q and ^S do something useful by default
+      bindings: make the search function rebindable again in help and browser
+      bindings: make ^W start always a forward search (as there is ^Q now)
+      browser: place the cursor properly on the selected file when -g is used
+      build: let git ignore also the generated PDF file
+      bump version numbers and add a news item for the 2.9.0 release
+      copyright: update some years, and standardize on the dashed format
+      display: keep the cursor switched on when resizing the screen
+      display: rework the switching on and off of the cursor
+      display: stop the help viewer from turning on the multibuffer indicator
+      display: switch off the cursor early on during startup
+      docs: make it clearer that a Signed-off-by is wanted on patches
+      docs: mention that macros work correctly only on terminal emulators
+      docs: remove another remark about indenting lacking undo capability
+      docs: update references to the nanorc files for the XDG changes
+      files: avoid an abortion when excuting a command in a new buffer
+      gnulib: update to its current upstream state
+      help: don't fall back to other syntaxes if there is no nanohelp one
+      history: after loading the lists, mark them as unchanged
+      history: remove the migration service for the old searches file
+      input: recognize Option+Arrow keys on iTerm2 in "xterm mode"
+      moving: don't slither and slide over tabs when they are overlong
+      moving: prevent the cursor sticking on or skipping over overwide tabs
+      new feature: a bindable function that starts always a backward search
+      options: remove '--quiet' and 'set quiet', because they hide problems
+      options: retire 'set backwards' -- it's still recognized but a no-op
+      organization: move all history-related stuff to its own file
+      ouch: set the positions-file name also when using the legacy state dir
+      painting: evade an ncurses bug by adding the A_PROTECT attribute
+      search: suppress the "not found" message when replacements were made
+      search: suppress the "Search Wrapped" message when doing replacements
+      search: wipe reassuring feedback as soon as searching has finished
+      startup: don't ask the user to press Enter upon an rcfile error
+      startup: don't produce more than three consecutive beeps
+      startup: when an rcfile contains errors, report this on the status bar
+      syntax: default: use colors that are readable also on dark backgrounds
+      titlebar: don't reshow version when dropping back to a single buffer
+      titlebar: don't show nano's name and version when in the file browser
+      titlebar: drop the prefix "File: " from before the filename
+      tweaks: add a translator hint, and adjust two others
+      tweaks: adjust a comment, and condense a fragment of code
+      tweaks: adjust indentation and comments after the previous change
+      tweaks: adjust two comments, and correct and a few cosmetic mistakes
+      tweaks: avoid an unused-variable warning with --disable-nanorc
+      tweaks: change some mayday messages, to urge the user to report a bug
+      tweaks: change the arrows to triangles also for searching in file browser
+      tweaks: change the help-text arrows to triangles, to be more visible
+      tweaks: chuck a bunch of asserts -- they have lost their usefulness
+      tweaks: chuck an assert, and then condense the code and a comment
+      tweaks: constify the result strings of getenv(), as a reminder
+      tweaks: correct two minor things in the documentation
+      tweaks: discard another set of useless asserts
+      tweaks: discard some obsolete debugging stuff
+      tweaks: don't construct the positions-history filename time and again
+      tweaks: drop a bunch of outdated asserts
+      tweaks: drop the ineffective cgitrc -- sorting by "age" does not work
+      tweaks: elide a comment, and improve a couple of others
+      tweaks: elide an unneeded check
+      tweaks: elide an unneeded function now that stuff is grouped together
+      tweaks: elide a superfluous allocation
+      tweaks: elide two variables by using a pointer instead of an index
+      tweaks: fix compilation when configured with --disable-histories
+      tweaks: fix compilation when configured with --enable-tiny
+      tweaks: fix compilation with --enable-tiny --enable-histories
+      tweaks: frob a couple of comments
+      tweaks: frob some comments and rename a few variables and a function
+      tweaks: get rid of some cluttering conditional compilation
+      tweaks: improve some comments, and rename a variable for symmetry
+      tweaks: make the switching on and off of the cursor a bit more compact
+      tweaks: move a general function to the utils.c file
+      tweaks: reduce a bit of code duplication
+      tweaks: remove a comment from the docs that is no longer accurate
+      tweaks: remove another bit of conditional compilation
+      tweaks: remove a superfluous no-op function call
+      tweaks: remove a useless prefix from a hundred constants
+      tweaks: rename a function and swap its two parameters
+      tweaks: rename a function plus two parameters, to be more fitting
+      tweaks: rename a macro, to make a little more sense
+      tweaks: rename a variable, to avoid a possible confusion
+      tweaks: rename a variable, to make more sense
+      tweaks: rename one variable once more
+      tweaks: rename some constants, to follow the same underscoreless scheme
+      tweaks: rename three functions, to be shorter or clearer
+      tweaks: rename three variables, for more contrast
+      tweaks: rename two variables, for contrast, and frob some comments
+      tweaks: rename two variables, to be more indicative of what they do
+      tweaks: rename two variables, to make a little more sense
+      tweaks: reshuffle a bit of code and elide an unneeded variable
+      tweaks: reshuffle a couple of lines, and trim some comments
+      tweaks: reshuffle some code, and rename a variable
+      tweaks: reshuffle some code in order to elide a variable
+      tweaks: reshuffle some regexes, for order and compactness
+      tweaks: strip four unneeded checks
+      tweaks: transform the token DISABLE_COLOR to ENABLE_COLOR
+      tweaks: transform the token DISABLE_EXTRA to ENABLE_EXTRA
+      tweaks: transform the token DISABLE_HISTORIES to ENABLE_HISTORIES
+      tweaks: transform the token DISABLE_JUSTIFY to ENABLE_JUSTIFY
+      tweaks: transform the token DISABLE_OPERATINGDIR to ENABLE_OPERATINGDIR
+      tweaks: transform the token DISABLE_SPELLER to ENABLE_SPELLER
+      tweaks: transform the token DISABLE_WRAPJUSTIFY to ENABLED_WRAPORJUSTIFY
+      tweaks: transform the token DISABLE_WRAPPING to ENABLE_WRAPPING
+      tweaks: use mnemonic constants instead of TRUE and FALSE
+
+Brand Huntsman (3):
+      bindings: allow exiting from the help viewer with F1, like with ^G
+      history: prevent overwriting of positions between multiple instances
+      syntax: nanohelp: colorize Up, Down, Left and Right (when not in UTF-8)
+
+David Lawrence Ramsey (18):
+      build: add history.c to the list of files with translatable strings
+      display: don't cut off zero-width characters at the end of a chunk
+      docs: decribe the bindable functions 'recordmacro' and 'runmacro'
+      docs: document the more everyday names of three bindable functions
+      docs: remove man page reference to indent/unindent lacking undo/redo
+      files: don't change file format when inserting into an existing buffer
+      help: allow firstline and lastline to work at the search prompt
+      history: fix the check for an existing $HOME/.nano/ directory
+      moving: set the preferred column properly when doing a smart home
+      search: don't bother saving and restoring the search direction
+      search: trim a failed search string for width instead of length
+      softwrap: break before multi-column Unicode blanks when they overshoot
+      syntax: nanorc: properly color valid arguments of 'selectedcolor'
+      text: hook up indenting and unindenting to the undo/redo code
+      text: move the indenting of a single line into its own function
+      text: move the unindenting of a single line into its own function
+      tweaks: use printf's z modifier for most of the size_t/ssize_t types
+      undo: generalize update_comment_undo() into update_multiline_undo()
+
+Lion Yang (1):
+      input: ensure that standard input uses blocking mode
+
+Marco Diego Aurélio Mesquita (5):
+      general: do not free strings gotten from getenv(), to avoid a crash
+      history: remember the commands that were executed during this session
+      history: remember the list of executed commands across sessions
+      new feature: show current and total number of open buffers in title bar
+      new feature: the ability to record and play back a series of keystrokes
+
+Simon Ochsenreither (1):
+      startup: look for nanorc and history files also in the XDG directories
+
+Viorel Bota (1):
+      files: check for a changed disk file also for 'savefile' and --tempfile
+
+
+Changes between v2.8.6 and v2.8.7:
+----------------------------------
+
+Benno Schulenberg (54):
+      bindings: hard-bind Alt+Up and Alt+Down to findprevious and findnext
+      browser: correct the inverted search behavior for Alt+Up/Alt+Down
+      bump version numbers and add a news item for the 2.8.7 release
+      display: catch all cases where the cursor can be pushed offscreen
+      display: don't doubly show tabs that cross a chunk boundary
+      files: do not silently ignore an invalid backup directory, but die
+      files: don't close a file descriptor when opening failed  [coverity scan]
+      files: don't try to open a negative file descriptor  [coverity scan]
+      gnulib: update to its current upstream state
+      linting: don't try to put the cursor at a negative x position
+      linting: skip the introductory message produced by 'gcc -fshow-column'
+      mouse: one click of the wheel should move three lines, not three pages
+      moving: don't push x forward when backward movement lands on a split tab
+      moving: get <Up> unstuck when trying to pass over a sprawling tab
+      moving: improve retention of the target column somewhat
+      moving: the current chunk is always 0 when not in softwrap mode
+      moving: use the correct formula for pushing the index forward
+      rcfile: don't leak a shortcut when something goes wrong  [coverity scan]
+      softwrap: properly move up and down over tabs that are split over rows
+      syntax: c: give labels some color too
+      syntax: html: don't bother coloring tags that cross line boundaries
+      syntax: python: don't require a character after an opening triple quote
+      text: properly unindent lines that consist of only whitespace
+      tweaks: a comma does not end a sentence, and is not part of a variable
+      tweaks: adjust the indentation after the previous change
+      tweaks: adjust the indentation after the previous change
+      tweaks: adjust the indentation after the previous change
+      tweaks: allow enough space for the Y/N/A characters  [coverity scan]
+      tweaks: avoid trying to stat a file that might be NULL  [coverity scan]
+      tweaks: close a file also in the error path  [coverity scan]
+      tweaks: condense or improve some comments
+      tweaks: condense some logic, to elide a variable and a comment
+      tweaks: do not leak the indentation when all lines are empty
+      tweaks: don't close a descriptor when its stream has already been closed
+      tweaks: drop some debugging stuff
+      tweaks: drop some debugging stuff, and frob two comments
+      tweaks: elide an unneeded pointer
+      tweaks: elide the global variable 'full_operating_dir'
+      tweaks: fix compilation with --enable-{tiny,help,multibuffer}
+      tweaks: group all movement routines in corresponding pairs
+      tweaks: keep the const qualifier of the syntax name  [coverity scan]
+      tweaks: remove includes that appear to be superfluous
+      tweaks: rename a function, to let it make more sense
+      tweaks: rename a label, to better match its task
+      tweaks: renumber the special key codes, to be in sequence and grouped
+      tweaks: reshuffle code and frob comments, to reduce the number of lines
+      tweaks: reshuffle some code to harmonize two related functions
+      tweaks: reshuffle some declarations and trim a few comments
+      tweaks: restore an include that is necessary on some platforms
+      tweaks: show "where is next" in the help lines of the file browser
+      tweaks: simply set the proper scrolling mode, instead of imitating it
+      tweaks: snip a superfluous clearing of the bottom bars after help
+      tweaks: sort the includes, so it's a little easier to see what is there
+      tweaks: specify more directly in what manner to move the viewport
+
+David Lawrence Ramsey (23):
+      browser: allow backward/forward re-searches with Alt+Up/Alt+Down
+      display: constrain line numbers on softwrapped lines with sprawling tabs
+      display: do show the visible character for a tab when it starts a row
+      display: revamp how screen updates are done in the movement code
+      moving: redraw not just the new current line but also the prior one
+      small addition: allow customizing the color of selected text
+      softwrap: correctly move vertically through overwide tabs
+      softwrap: don't push a straddling tab to the next chunk
+      softwrap: improve left/right navigation across line boundaries
+      softwrap: make sure char_len is set when a tab is wider than a chunk
+      softwrap: properly update the viewport when adding text at firstcolumn
+      text: make indenting add to the beginning of the line
+      text: make unindenting remove from the beginning of the line
+      tweaks: adjust spacing and wording in sample.nanorc
+      tweaks: correct a comment typo and an indentation error
+      tweaks: harmonize some prototypes with their functions
+      tweaks: remove unneeded parentheses and blank line and braces
+      tweaks: replace a misplaced tab with a space
+      tweaks: set the target row for smooth scrolling more directly
+      tweaks: use charalloc() instead of (char *)nmalloc() * sizeof(char)
+      weeding: drop the forreal parameter from place_the_cursor()
+      weeding: remove redundant casts of nmalloc()
+      weeding: remove the unused be_clever parameter from do_home()/do_end()
+
+Rishabh Dave (1):
+      new feature: allow pasting at all input prompts
+
+Urja Rannikko (1):
+      bindings: hard-bind Alt+Left and Alt+Right to buffer switching
+
+
+Changes between v2.8.5 and v2.8.6:
+----------------------------------
+
+Benno Schulenberg (58):
+      build: for Solaris, tell the linker to use a threading lib
+      bump version numbers and add a news item for the 2.8.6 release
+      display: avoid a jumpy cursor by redrawing bottom bars only when needed
+      display: when back in the main loop, always redraw the help lines
+      display: wipe stale messages from the status bar straightaway
+      docs: add some more mark-up to the Info document
+      docs: be more precise about when a dash is given instead of a filename
+      docs: drop the cluttering Info-style links from the HTML manual
+      docs: improve cross references and mark-up in the Info document
+      docs: improve some spacing, especially of the synopsis in the PDF
+      docs: make the guillemot and the middle dot appear correctly in HTML
+      docs: move the descriptions of 'header' and 'magic' next to 'syntax'
+      docs: remove the mention of backslashes for the argument of 'comment'
+      docs: reword the explanation of the 'syntax' command
+      docs: use real cross references in the Info document
+      docs: use the @command and @option mark-up more consistently
+      files: don't bother counting rows when opening a fresh buffer
+      files: warn more conspicuously when the file on disk has changed
+      gnulib: update to its current state
+      input: recognize the Ctrl+Arrow key sequences from Haiku's Terminal
+      options: recognize -a and --atblanks on the command line
+      options: rename --cut to --cutfromcursor, to be clearer
+      pasting: restore the cap on the number of chunks to move backward
+      rcfile: don't require backslashing in the argument of 'comment'
+      screen: defeat a VTE/Konsole bug also for the case of --constantshow
+      screen: retain the same help-line tags when the window is resized
+      softwrap: when possible, go back a whole bunch of chunks at a time
+      startup: don't try parsing color names that were not specified
+      startup: in default mode, display the tail of the file as Pico does
+      suspension: prevent entering an invalid byte upon resume (with S-Lang)
+      syntax: gentoo: make it clearer that the file contains two syntaxes
+      syntax: man, groff: fix the string that introduces a comment
+      syntax: nanorc: don't color numeric arguments specially
+      syntax: nanorc: don't color the argument of 'linter' as if invalid
+      syntax: texinfo: cover also some special cases like @U, @OE and @TeX
+      tweaks: adjust an error message so it fits all possible cases
+      tweaks: avoid a clang warning about an expression being treated as NULL
+      tweaks: avoid a failure with black diamonds in a PDF
+      tweaks: avoid an unused-variable warning for the tiny version
+      tweaks: chuck some debugging stuff
+      tweaks: chuck two useless asserts, and elide a call to strncasecmp()
+      tweaks: correct two conditions for conditional compilation
+      tweaks: drop a bunch of useless asserts
+      tweaks: elide unneeded calls of get_last_chunk_leftedge()
+      tweaks: fix compilation with --enable-tiny
+      tweaks: move an include to the file that actually makes use of it
+      tweaks: put declarations always first, so it will compile on Haiku
+      tweaks: recognize the empty string as comment inhibitor, instead of NULL
+      tweaks: remove two superfluous includes
+      tweaks: rename a constant, to match the corresponding option
+      tweaks: rename another constant, to be more precise
+      tweaks: rename a variable, to have more contrast
+      tweaks: rename four functions, to be more distinct
+      tweaks: rename two variables, to make a little sense
+      tweaks: reshuffle some things to condense the code
+      tweaks: simplify the parsing of color combinations
+      tweaks: spell an option correctly in NEWS
+      tweaks: swap ^X and ^L in the help lines of the help viewer
+
+David Lawrence Ramsey (29):
+      display: when converting tabs, don't go beyond the screen width
+      docs: consistently describe the -U/-c and -r/-w overrides
+      docs: mention that boldtext can be overridden also for function tags
+      docs: mention the default values for comment and whitespace directives
+      moving: fix the cursor jumping back and forth with non-smooth paging
+      moving: make vertical movement account for varying chunk width
+      new feature: allow lines to be softwrapped at whitespace
+      replacing: make spotlight() account for varying chunk width
+      softwrap: add new functions for chunks of varying width
+      softwrap: don't flag EOL too early, nor break continuous text too early
+      softwrap: in do_mouse(), keep the cursor before a softwrap breakpoint
+      softwrap: make the changes to actually allow the chunk width to vary
+      softwrap: prepare for allowing the chunk width to vary
+      softwrap: remove unneeded caps on the number of chunks to move
+      syntax: nanorc: properly color a "fill" option with a negative value
+      text: adjust the comments in do_indent() and do_unindent()
+      text: make do_unindent() an exact copy of do_indent()
+      text: make sure commenting is disabled when comment "" was specified
+      text: normalize the indentation in do_indent() and do_unindent()
+      text: remove indent-related code from do_unindent()
+      text: remove the last usage of cols in do_indent() and do_unindent()
+      text: remove unindent-related code from do_indent()
+      text: remove unneeded references to cols from the indentation routines
+      text: update placewewant properly when indenting/unindenting
+      tweaks: correct a parameter type, and correct two empty initializations
+      tweaks: fix a typo in NEWS
+      tweaks: only compensate for a partially-offscreen line in softwrap mode
+      tweaks: remove unneeded braces, and mark empty parameter list as void
+      usage: a dash doesn't have to come first among the filenames
+
+
+Changes between v2.8.4 and v2.8.5:
+----------------------------------
+
+Benno Schulenberg (35):
+      bindings: in the tiny version exclude word jumping from the prompts
+      bump version numbers and add a news item for the 2.8.5 release
+      display: don't let a SIGCONT write anything to the screen
+      display: don't show the cursor while we are busy calculating its position
+      display: redraw title bar and edit window only when needed
+      display: show the cursor position also when searching took a while
+      docs: avoid a double "see" for cross references in the HTML manual
+      docs: spell "title bar" and "status bar" correctly
+      gnulib: update to its current state
+      input: give an appropriate message when there are too many errors
+      startup: allow negative line and column numbers on the command line
+      startup: allow positioning the cursor also when reading standard input
+      startup: always open with the file that was mentioned first
+      startup: don't crash when opening standard input would fail
+      startup: don't mark the buffer as modified when in view mode
+      startup: don't mark the buffer as modified when nothing was read
+      startup: don't try placing the cursor when reading standard input failed
+      startup: don't use position history when reading from standard input
+      suspension: fake a SIGWINCH when coming back out of the background
+      suspension: remove a duplicate setting of the HUP and TERM handler
+      syntax: default: allow leading whitespace before a hash comment
+      tweaks: adjust indentation after preceding changes
+      tweaks: avoid compiler warning about implicit type
+      tweaks: be consistent in the spelling of title bar and status bar
+      tweaks: don't bother calculating the position when we won't show it
+      tweaks: elide a function that should not be a separate one
+      tweaks: elide a variable
+      tweaks: frob a few comments, and elide and #ifndef
+      tweaks: reduce the scope of three variables, and rename them besides
+      tweaks: reduce the scope of two variables, and rename them too
+      tweaks: rename a function and a variable, to better match what they do
+      tweaks: rename a variable, and frob a couple of comments
+      tweaks: rename two functions and a variable, and invert its logic
+      tweaks: reshuffle some stuff, to put related things closer together
+      tweaks: unglobalize the nodelay_mode variable
+
+
 Changes between v2.8.3 and v2.8.4:
 ----------------------------------
 

IMPROVEMENTS

@@ -1,11 +1,23 @@
 Improvements in GNU nano
 ========================
 
+Since 2.9.0:
+  - <Tab> and <Shift+Tab> can be used to indent/unindent a marked region.
+  - Can snip trailing whitespace while typing, with 'set trimblanks'.
+  - The ability to record and replay a series of keystrokes (a macro).
+  - Assigned functions to ^S (save file) and ^Q (start backward search).
+  - Indenting and unindenting have been integrated into the undo system.
+  - Support for $XDG_CONFIG_HOME for the nanorc file, and $XDG_DATA_HOME
+    for the history files (of search strings and cursor positions).
+
 Since 2.8.0:
+  - Meta-Up/Meta-Down will search the previous/next occurrence.
+  - ^U pastes the first line of the cutbuffer at a prompt.
+  - Softwrapping can be done at whitespace (with --soft --atblanks).
   - The ^G help texts have become searchable (with ^W and M-W).
   - Ctrl+Home and Ctrl+End jump to start and end of file.
-  - In softwrap mode the cursor now moves per visual row instead of per
-    logical line, and the screen will scroll per row.
+  - In softwrap mode the cursor now moves per visual row instead of
+    per logical line, and the screen will scroll per row.
 
 Since 2.7.0:
   - The keystroke ^] to complete a fragment to an existing full word.

README.GIT

@@ -93,14 +93,24 @@ first create a branch off of master:
 
     $ git checkout -b somename
 
-Then change the code so it does what you want, and commit it, with in the
-commit message (after the one-line summary) a rationale for the change:
+Then change the code so it does what you want, and commit it together
+with your Sign-off:
 
     $ git commit -as
 
-Then create a patch (or patches):
+In the commit message (after the one-line summary) give a rationale
+for the change.  With your Signed-off-by you declare that the code is
+yours, or that you are free to reuse it, and that you submit it under
+the license that covers nano.  Then create a patch (or patches):
 
     $ git format-patch master
 
 Send that patch (or patches) to <nano-devel@gnu.org>, as an attachment
 or with git send-email.
+
+To keep most lines of nano's source code within a width of 80 characters,
+a tab size of four should be used.  So in your nanorc file you may want
+to include 'set tabsize 4', or you could use -T4 on the command line.
+To make git display things as intended, you can do:
+
+    $ git config --local core.pager "less -x1,5"

THANKS

@@ -4,90 +4,94 @@ If we missed you here, let us know!
 
 Translations:
 ============
-Sharuzzaman Ahmat Raslan <sharuzzaman@excite.com>	Malay
-Josef Andersson <josef.andersson@fripost.org>		Swedish
-Laurentiu Buzdugan <buzdugan@voyager.net>		Romanian
-Mario Blättermann <mario.blaettermann@gmail.com>	German
-Ricardo Cárdenes Medina <ricardo@conisys.com>		Spanish
-Antonio Ceballos <aceballos@gmail.com>			Spanish
-Wei-Lun CHAO <chaoweilun@pcmail.com.tw>			Chinese (traditional)
-Yuri Chornoivan <yurchor@ukr.net>			Ukrainian
-Marco Colombo <magicdice@inwind.it>			Italian
-Mihai Cristescu <mihai.cristescu@archlinux.info>	Romanian
-Yavor Doganov <yavor@doganov.org>			Bulgarian
-Karl Eichwalder <keichwa@gmx.net>			German
-A. Murat EREN <meren@comu.edu.tr>			Turkish
-Rafael Ferreira <rafael.f.f1@gmail.com>			Brazilian Portuguese
-Doruk Fisek <dfisek@fisek.com.tr>			Turkish
-Pavel Fric <pavelfric@seznam.cz>			Czech
-Jorge González <aloriel@gmail.com>			Spanish
+Sharuzzaman Ahmat Raslan <sharuzzaman@excite.com>     Malay
+Josef Andersson <josef.andersson@fripost.org>         Swedish
+Laurentiu Buzdugan <buzdugan@voyager.net>             Romanian
+Mario Blättermann <mario.blaettermann@gmail.com>      German
+Ricardo Cárdenes Medina <ricardo@conisys.com>         Spanish
+Antonio Ceballos <aceballos@gmail.com>                Spanish
+Wei-Lun CHAO <chaoweilun@pcmail.com.tw>               Chinese (traditional)
+Yuri Chornoivan <yurchor@ukr.net>                     Ukrainian
+Marco Colombo <magicdice@inwind.it>                   Italian
+Mihai Cristescu <mihai.cristescu@archlinux.info>      Romanian
+Yavor Doganov <yavor@doganov.org>                     Bulgarian
+Karl Eichwalder <keichwa@gmx.net>                     German
+A. Murat EREN <meren@comu.edu.tr>                     Turkish
+Doruk Fisek <dfisek@fisek.com.tr>                     Turkish
+Rafael Fontenelle <rffontenelle@gmail.com>            Brazilian Portuguese
+Pavel Fric <pavelfric@seznam.cz>                      Czech
+Jorge González <aloriel@gmail.com>                    Spanish
 Jean-Philippe Guérard <jean-philippe.guerard@laposte.net>  French
-Geir Helland <pjallabais@users.sourceforge.net>		Norwegian Bokmål
-Tedi Heriyanto <tedi_h@gmx.net>				Indonesian
-Václav Haisman <V.Haisman@sh.cvut.cz>			Czech
-Kjetil Torgrim Homme <kjetilho@linpro.no>		Norwegian Nynorsk
-Szabolcs Horvath <horvaths@janus.gimsz.sulinet.hu>	Hungarian
-Jorma Karvonen <karvonen.jorma@gmail.com>		Finnish
-Gabor Kelemen <kelemeng@gnome.hu>			Hungarian
-Kalle Kivimaa <kalle.kivimaa@iki.fi>			Finnish
-Eivind Kjørstad <ekj@vestdata.no>			Norwegian Nynorsk
-Florian König <floki@bigfoot.com>			German
-Klemen Košir <klemen913@gmail.com>			Slovenian
-Wojciech Kotwica <wkotwica@post.pl>			Polish
-Ask Hjorth Larsen <asklarsen@gmail.com>			Danish
-Clement Laforet <clem_laf@wanadoo.fr>			French
-LI Daobing <lidaobing@gmail.com>			Chinese (simplified)
-Jordi Mallach <jordi@gnu.org>				Catalan
-João Victor Duarte Martins <jvdm@sdf.lonestar.org>	Brazilian Portuguese
-Pavel Maryanov <acid@jack.kiev.ua>			Russian
-Daniele Medri <madrid@linux.it>				Italian
-Gergely Nagy <algernon@debian.org>			Hungarian
-Kalle Olavi Niemitalo <kon@iki.fi>			Finnish
-Мирослав Николић <miroslavnikolic@rocketmail.com>	Serbian
-Claudio Neves <cneves@nextis.com>			Brazilian Portuguese
-Daniel Nylander <po@danielnylander.se>			Swedish
-Mikel Olasagasti <hey_neken@mundurat.net>		Basque
-Michael Piefel <piefel@informatik.hu-berlin.de>		German
-Sergey Poznyakoff <gray@gnu.org>			Polish
-Božidar Putanec <bozidarp@yahoo.com>			Croatian
-Trần Ngọc Quân <vnwildman@gmail.com>			Vietnamese
-Sergey A. Ribalchenko <fisher@obu.ck.ua>		Ukrainian and Russian
-Michel Robitaille <robitail@IRO.UMontreal.CA>		French
-Christian Rose <menthos@menthos.com>			Swedish
-Dimitriy Ryazantcev <DJm00n@mail.ru>			Russian
-Stig E Sandø <stig@ii.uib.no>				Norwegian Bokmål
-Kevin Patrick Scannell <kscanne@gmail.com>		Irish
-Benno Schulenberg <benno@vertaalt.nl>			Dutch and Esperanto
-Danilo Segan <dsegan@gmx.net>				Serbian
-Clytie Siddall <clytie@riverland.net.au>		Vietnamese
-Keld Simonsen <keld@dkuug.dk>				Danish
-Guus Sliepen <guus@nl.linux.org>			Dutch
-Cezary Sliwa <sliwa@cft.edu.pl>				Polish
-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
-Francisco Javier Tsao Santín <tsao@members.fsf.org>	Galician
-Miquel Vidal <miquel@sindominio.net>			Catalan
-Phan Vinh Thinh <teppi82@gmail.com>			Vietnamese
-Pauli Virtanen <pauli.virtanen@saunalahti.fi>		Finnish
-Aron Xu <happyaron.xu@gmail.com>			Chinese (simplified)
-Peio Ziarsolo <peio@sindominio.net>			Basque
-Anton Zinoviev <zinoviev@debian.org>			Bulgarian
+Geir Helland <pjallabais@users.sourceforge.net>       Norwegian Bokmål
+Tedi Heriyanto <tedi_h@gmx.net>                       Indonesian
+Václav Haisman <V.Haisman@sh.cvut.cz>                 Czech
+Takeshi Hamasaki <hmatrjp@users.sourceforge.jp>       Japanese
+Kjetil Torgrim Homme <kjetilho@linpro.no>             Norwegian Nynorsk
+Szabolcs Horvath <horvaths@janus.gimsz.sulinet.hu>    Hungarian
+Jorma Karvonen <karvonen.jorma@gmail.com>             Finnish
+Mehmet Kececi  <mkececi@mehmetkececi.com>             Turkish
+Gabor Kelemen <kelemeng@gnome.hu>                     Hungarian
+Kalle Kivimaa <kalle.kivimaa@iki.fi>                  Finnish
+Eivind Kjørstad <ekj@vestdata.no>                     Norwegian Nynorsk
+Florian König <floki@bigfoot.com>                     German
+Klemen Košir <klemen913@gmail.com>                    Slovenian
+Wojciech Kotwica <wkotwica@post.pl>                   Polish
+Ask Hjorth Larsen <asklarsen@gmail.com>               Danish
+Clement Laforet <clem_laf@wanadoo.fr>                 French
+LI Daobing <lidaobing@gmail.com>                      Chinese (simplified)
+Jordi Mallach <jordi@gnu.org>                         Catalan
+João Victor Duarte Martins <jvdm@sdf.lonestar.org>    Brazilian Portuguese
+Pavel Maryanov <acid@jack.kiev.ua>                    Russian
+Daniele Medri <madrid@linux.it>                       Italian
+Gergely Nagy <algernon@debian.org>                    Hungarian
+Kalle Olavi Niemitalo <kon@iki.fi>                    Finnish
+Мирослав Николић <miroslavnikolic@rocketmail.com>     Serbian
+Claudio Neves <cneves@nextis.com>                     Brazilian Portuguese
+Lauri Nurmi <lanurmi@iki.fi>                          Finnish
+Daniel Nylander <po@danielnylander.se>                Swedish
+Mikel Olasagasti <hey_neken@mundurat.net>             Basque
+Michael Piefel <piefel@informatik.hu-berlin.de>       German
+Sergey Poznyakoff <gray@gnu.org>                      Polish
+Božidar Putanec <bozidarp@yahoo.com>                  Croatian
+Trần Ngọc Quân <vnwildman@gmail.com>                  Vietnamese
+Sergey A. Ribalchenko <fisher@obu.ck.ua>              Ukrainian and Russian
+Michel Robitaille <robitail@IRO.UMontreal.CA>         French
+Christian Rose <menthos@menthos.com>                  Swedish
+Dimitriy Ryazantcev <DJm00n@mail.ru>                  Russian
+Stig E Sandø <stig@ii.uib.no>                         Norwegian Bokmål
+Kevin Patrick Scannell <kscanne@gmail.com>            Irish
+Benno Schulenberg <benno@vertaalt.nl>                 Dutch and Esperanto
+Danilo Segan <dsegan@gmx.net>                         Serbian
+Clytie Siddall <clytie@riverland.net.au>              Vietnamese
+Keld Simonsen <keld@dkuug.dk>                         Danish
+Guus Sliepen <guus@nl.linux.org>                      Dutch
+Cezary Sliwa <sliwa@cft.edu.pl>                       Polish
+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
+Francisco Javier Tsao Santín <tsao@members.fsf.org>   Galician
+Balázs Úr <urbalazs@gmail.com>                        Hungarian
+Miquel Vidal <miquel@sindominio.net>                  Catalan
+Phan Vinh Thinh <teppi82@gmail.com>                   Vietnamese
+Pauli Virtanen <pauli.virtanen@saunalahti.fi>         Finnish
+Aron Xu <happyaron.xu@gmail.com>                      Chinese (simplified)
+Peio Ziarsolo <peio@sindominio.net>                   Basque
+Anton Zinoviev <zinoviev@debian.org>                  Bulgarian
 
 
 Other stuff:
 ===========
-Ben Armstrong <synrg@sanctuary.nslug.ns.ca>	Negative -r value idea, code
-Thomas Dickey <dickey@herndon4.his.com>		Curses help and advice
-Sven Guckes <guckes@math.fu-berlin.de>		Advice and advocacy
-Thijs Kinkhorst <thijs@kinkhorst.com>		rnano.1 manpage
-Jim Knoble <jmknoble@pobox.com>			Pico compat for browser
-Ryan Krebs <fluffy@highwire.stanford.edu>	Many bug fixes and testing
-Roy Lanek <lanek@ranahminang.net>		Advice and advocacy
-Chuck Mead <csm@MoonGroup.com>			Feedback and RPM stuff
-Mike Melanson <melanson@pcisys.net>		Bugs
-Neil Parks <nparks@acsmail.com>			Bug reports and fixes
-Jeremy Robichaud <robicj@yahoo.com>		Beta tester
-Bill Soudan <wes0472@rit.edu>			Regex code, etc
-Ken Tyler <kent@werple.net.au>			Search fixes and more
+Ben Armstrong <synrg@sanctuary.nslug.ns.ca>    Negative -r value idea, code
+Thomas Dickey <dickey@herndon4.his.com>        Curses help and advice
+Sven Guckes <guckes@math.fu-berlin.de>         Advice and advocacy
+Thijs Kinkhorst <thijs@kinkhorst.com>          rnano.1 manpage
+Jim Knoble <jmknoble@pobox.com>                Pico compat for browser
+Ryan Krebs <fluffy@highwire.stanford.edu>      Many bug fixes and testing
+Roy Lanek <lanek@ranahminang.net>              Advice and advocacy
+Chuck Mead <csm@MoonGroup.com>                 Feedback and RPM stuff
+Mike Melanson <melanson@pcisys.net>            Bug reports
+Neil Parks <nparks@acsmail.com>                Bug reports and fixes
+Jeremy Robichaud <robicj@yahoo.com>            Beta tester
+Bill Soudan <wes0472@rit.edu>                  Regex code, etc
+Ken Tyler <kent@werple.net.au>                 Search fixes and more

autogen.sh

@@ -2,7 +2,7 @@
 # Generate configure & friends for GIT users.
 
 gnulib_url="git://git.sv.gnu.org/gnulib.git"
-gnulib_hash="4be488081b917f98a2fd3e2766324043649cca6e"
+gnulib_hash="44100f563482fe469a33abecda5797da04fc3c61"
 
 modules="
 	futimens

doc/.gitignore

@@ -4,4 +4,5 @@ nanorc.5.html
 texinfo.tex
 nano.info
 nano.html
+nano.pdf
 sample.nanorc

doc/Makefile.am

@@ -28,6 +28,6 @@ info_TEXINFOS = nano.texi
 BUILT_SOURCES += nano.html
 dist_html_DATA += nano.html
 
-AM_MAKEINFOHTMLFLAGS = --no-split
+AM_MAKEINFOHTMLFLAGS = --no-split -c HEADERS=0
 
 EXTRA_DIST = $(BUILT_SOURCES) $(info_TEXINFOS)

doc/faq.html

@@ -83,7 +83,7 @@
 <h2><a name="1.3"></a>1.3. Why the name change from TIP?</h2>
 <blockquote><p>On January 10, 2000, TIP was officially renamed to nano because of a namespace conflict with another program called 'tip'. The original 'tip' program &quot;establishes a full duplex terminal connection to a remote host&quot;, and was included with many older Unix systems (and newer ones like Solaris). The conflict was not noticed at first because there is no 'tip' utility included with most GNU/Linux distributions (where nano was developed).</p></blockquote>
 <h2><a name="1.4"></a>1.4. What is the current version of nano?</h2>
-<blockquote><p>The current version of nano <i>should</i> be <b>2.8.4</b>.  Of course, you should always check the <a href="https://nano-editor.org/">nano homepage</a> to see what the latest and greatest version is.</p></blockquote>
+<blockquote><p>The current version of nano <i>should</i> be <b>2.9.2</b>.  Of course, you should always check the <a href="https://nano-editor.org/">nano homepage</a> to see what the latest and greatest version is.</p></blockquote>
 <h2><a name="1.5"></a>1.5. I want to read the man page without having to download the program!</h2>
 <blockquote><p>Jeez, demanding, aren't we? Okay, look <a href="https://nano-editor.org/dist/latest/nano.1.html">here</a>.</p></blockquote>
 <hr width="100%">
@@ -161,7 +161,7 @@
 <blockquote><p>To use multiple file buffers, you must not have configured nano with <b>--disable-multibuffer</b> nor with <b>--enable-tiny</b> (use <b>nano -V</b> to check the compilation options). Then when you want to insert a file into its own buffer instead of into the current file, just hit <b>Meta-F</b> after typing <b>^R</b>. If you always want files to be loaded into their own buffers, use the <b>--multibuffer</b> or <b>-F</b> flag when you invoke nano.</p>
   <p>You can move between the buffers you have open with the <b>Meta-&lt;</b> and <b>Meta-&gt;</b> keys, or more easily without holding Shift: <b>Meta-,</b> and <b>Meta-.</b> (clear as mud, right? =-). When you have more than one file buffer open, the ^X shortcut will say &quot;Close&quot;, instead of the normal &quot;Exit&quot; when only one buffer is open.</p></blockquote>
 <h2><a name="3.8"></a>3.8. Tell me more about this verbatim input stuff!</h2>
-<blockquote><p>When you want to insert a literal character into the file you're editing, such as a control character that nano usually treats as a command, first press <b>Meta-V</b> (if you're not at a prompt, you'll get the message &quot;Verbatim Input&quot; on the statusbar), then press the key(s) that generate the character you want.</p>
+<blockquote><p>When you want to insert a literal character into the file you're editing, such as a control character that nano usually treats as a command, first press <b>Meta-V</b> (if you're not at a prompt, you'll get the message &quot;Verbatim Input&quot; on the status bar), then press the key(s) that generate the character you want.</p>
   <p>Alternatively, if you've enabled Unicode support (see section <a href="#5.3">5.3</a>), you can press <b>Meta-V</b> and then type a six-digit hexadecimal code (from 000000 to 10FFFF, case-insensitive), and the character with the corresponding value will be inserted. The statubar will change to &quot;Unicode Input: ......&quot; when you do this.</p></blockquote>
 <h2><a name="3.9a"></a>3.9a. How do I make a .nanorc file that will be read when I start nano?</h2>
 <blockquote><p>It's not hard at all! But, your nano must <b>not</b> have been compiled with <b>--disable-nanorc</b>. Then simply copy the <b>sample.nanorc</b> that came with the nano source or your nano package (most likely in /usr/doc/nano) to .nanorc in your home directory. If you didn't get one, the syntax of the file is simple. Flags are turned on and off by using the words <b>set</b> and <b>unset</b> plus the long option name for the feature. For example, &quot;set nowrap&quot; or &quot;set smarthome&quot;.</p></blockquote>

doc/nano.1

@@ -16,8 +16,7 @@
 .\"   Documentation License along with this program.  If not, see
 .\"   <http://www.gnu.org/licenses/>.
 .\"
-.TH NANO 1 "version 2.8.4" "May 2017"
-.\" Please adjust this date whenever revising the manpage.
+.TH NANO 1 "version 2.9.2" "January 2018"
 
 .SH NAME
 nano \- Nano's ANOther editor, an enhanced free Pico clone
@@ -36,8 +35,8 @@ When giving a filename on the command line, the cursor can be put on a
 specific line by adding the line number with a plus sign (\fB+\fR) before
 the filename, and even in a specific column by adding it with a comma.
 
-If the first file specified is a dash (\fB\-\fR), \fBnano\fR will read
-data from standard input.
+As a special case: if instead of a filename a dash (\fB\-\fR) is given,
+\fBnano\fR will read data from standard input.
 
 .SH EDITING
 Entering text and moving around in a file is straightforward: typing the
@@ -61,7 +60,7 @@ stride.
 .PP
 The two lines at the bottom of the screen show some important commands;
 the built-in help (\fB^G\fR) lists all the available ones.
-The default key bindings can be changed via the .nanorc file -- see
+The default key bindings can be changed via a \fInanorc\fR file -- see
 .BR nanorc (5).
 
 .SH OPTIONS
@@ -77,7 +76,7 @@ line.
 When saving a file, back up the previous version of it, using the current
 filename suffixed with a tilde (\fB~\fP).
 .TP
-.BR \-C\ \fIdirectory\fR ", " \-\-backupdir= \fIdirectory
+.BR \-C\ \fIdirectory ", " \-\-backupdir= \fIdirectory
 Make and keep not just one backup file, but make and keep a uniquely
 numbered one every time a file is saved -- when backups are enabled (\fB\-B\fR).
 The uniquely numbered files are stored in the specified \fIdirectory\fR.
@@ -95,11 +94,11 @@ Read a file into a new buffer by default.
 Use vim-style file locking when editing files.
 .TP
 .BR \-H ", " \-\-historylog
-Log search and replace strings to \fI~/.nano/search_history\fP, so they can be
-retrieved in later sessions.
+Save the last hundred search strings and replacement strings and
+executed commands, so they can be easily reused in later sessions.
 .TP
 .BR \-I ", " \-\-ignorercfiles
-Don't look at the system's \fBnanorc\fP nor at \fB~/.nanorc\fP.
+Don't look at the system's \fInanorc\fR nor at the user's \fInanorc\fR.
 .TP
 .BR \-K ", " \-\-rebindkeypad
 Interpret the numeric keypad keys so that they all work properly.  You
@@ -113,14 +112,14 @@ Don't add newlines to the ends of files.
 Disable automatic conversion of files from DOS/Mac format.
 .TP
 .BR \-O ", " \-\-morespace
-Use the blank line below the titlebar as extra editing space.
+Use the blank line below the title bar as extra editing space.
 .TP
 .BR \-P ", " \-\-positionlog
 For the 200 most recent files, log the last position of the cursor,
 and place it at that position again upon reopening such a file.
 (The old form of this option, \fB\-\-poslog\fR, is deprecated.)
 .TP
-.BR "\-Q ""\fIcharacters\fB""" ", " "\-\-quotestr=""" \fIcharacters\fR """
+.BR "\-Q ""\fIcharacters\fB""" ", " "\-\-quotestr=""" \fIcharacters """
 Set the quoting string for justifying.  The default is
 \fB"^([\ \\t]*[#:>\\|}])+"\fP if extended regular expression support is
 available, or \fB">\ "\fP otherwise.  Note that \fB\\t\fP stands for a
@@ -139,13 +138,14 @@ with any name beginning with 'r' (e.g. "rnano").
 Use smooth scrolling: text will scroll line-by-line, instead of the
 usual chunk-by-chunk behavior.
 .TP
-.BR \-T\ \fInumber\fR ", " \-\-tabsize= \fInumber
+.BR \-T\ \fInumber ", " \-\-tabsize= \fInumber
 Set the size (width) of a tab to \fInumber\fP columns.  The value of
 \fInumber\fP must be greater than 0.  The default value is 8.
 .TP
 .BR \-U ", " \-\-quickblank
-Do quick statusbar blanking: statusbar messages will disappear after 1
-keystroke instead of 25.  Note that \fB\-c\fP overrides this.
+Do quick status-bar blanking: status-bar messages will disappear after 1
+keystroke instead of 25.  Note that option \fB\-c\fR (\fB\-\-constantshow\fR)
+overrides this.
 .TP
 .BR \-V ", " \-\-version
 Show the current version number and exit.
@@ -159,13 +159,17 @@ Specify which other characters (besides the normal alphanumeric ones)
 should be considered as part of a word.  This overrides option
 \fB\-W\fR (\fB\-\-wordbounds\fR).
 .TP
-.BR \-Y\ \fIname\fR ", " \-\-syntax= \fIname
+.BR \-Y\ \fIname ", " \-\-syntax= \fIname
 Specify the name of the syntax highlighting to use from among the ones
 defined in the \fInanorc\fP files.
 .TP
+.BR \-a ", " \-\-atblanks
+When doing soft line wrapping, wrap lines at whitespace
+instead of always at the edge of the screen.
+.TP
 .BR \-c ", " \-\-constantshow
-Constantly show the cursor position on the statusbar.
-Note that this overrides \fB\-U\fP.
+Constantly show the cursor position on the status bar.
+Note that this overrides option \fB\-U\fR (\fB\-\-quickblank\fR).
 .TP
 .BR \-d ", " \-\-rebinddelete
 Interpret the Delete key differently so that both Backspace and Delete
@@ -183,7 +187,7 @@ Show a summary of the available command-line options and exit.
 Indent new lines to the previous line's indentation.  Useful when
 editing source code.
 .TP
-.BR \-k ", " \-\-cut
+.BR \-k ", " \-\-cutfromcursor
 Make the 'Cut Text' command (normally \fB^K\fR) cut from the current cursor
 position to the end of the line, instead of cutting the entire line.
 .TP
@@ -204,7 +208,7 @@ and will write to the pipe when the user saves the "file".  This way
 \fBnano\fR can be used as an editor in combination with for instance
 \fBgpg\fR without having to write sensitive data to disk first.
 .TP
-.BR \-o\ \fIdirectory\fR ", " \-\-operatingdir= \fIdirectory
+.BR \-o\ \fIdirectory ", " \-\-operatingdir= \fIdirectory
 Set the operating directory.  This makes \fBnano\fP set up something
 similar to a chroot.
 .TP
@@ -213,17 +217,16 @@ Preserve the XON and XOFF sequences (^Q and ^S) so they will be caught
 by the terminal.
 .TP
 .BR \-q ", " \-\-quiet
-Do not report errors in the \fInanorc\fP files nor ask them to be
-acknowledged by pressing Enter at startup.
+Obsolete option.  Recognized but ignored.
 .TP
-.BR \-r\ \fInumber\fR ", " \-\-fill= \fInumber
+.BR \-r\ \fInumber ", " \-\-fill= \fInumber
 Hard-wrap lines at column \fInumber\fP.  If this value is 0 or less, wrapping
 will occur at the width of the screen less \fInumber\fP columns, allowing
 the wrap point to vary along with the width of the screen if the screen
 is resized.  The default value is \-8.  This option conflicts with
-\fB\-w\fR -- the last one given takes effect.
+\fB\-w\fR (\fB\-\-nowrap\fR) -- the last one given takes effect.
 .TP
-.BR \-s\ \fIprogram\fR ", " \-\-speller= \fIprogram
+.BR \-s\ \fIprogram ", " \-\-speller= \fIprogram
 Use this alternative spell checker command.
 .TP
 .BR \-t ", " \-\-tempfile
@@ -239,7 +242,7 @@ Just view the file and disallow editing: read-only mode.
 .TP
 .BR \-w ", " \-\-nowrap
 Disable the hard-wrapping of long lines.  This option conflicts with
-\fB\-r\fR -- the last one given takes effect.
+\fB\-r\fR (\fB\-\-fill\fR) -- the last one given takes effect.
 .TP
 .BR \-x ", " \-\-nohelp
 Don't show the two help lines at the bottom of the screen.
@@ -255,7 +258,7 @@ continuing it over multiple screen lines.  Since
 this option last when using other options (e.g.\& 'nano \-wS$') or pass it
 separately (e.g.\& 'nano \-wS \-$').
 .TP
-.BR \-a ", " \-b ", " \-e ", " \-f ", " \-j
+.BR \-b ", " \-e ", " \-f ", " \-j
 Ignored, for compatibility with Pico.
 
 .SH TOGGLES
@@ -267,9 +270,10 @@ hard-wrapping of long lines, \fBM\-$\fR toggles soft-wrapping,
 See at the end of the \fB^G\fR help text for a complete list.
 
 .SH INITIALIZATION FILE
-\fBnano\fP will read initialization files in the following order:
-the system's \fBnanorc\fP (if it exists), and then the user's
-\fB~/.nanorc\fP (if it exists).  Please see
+\fBnano\fR will read two configuration files: first the system's
+\fInanorc\fR (if it exists), and then the user's \fInanorc\fR (if it
+exists), either \fB~/.nanorc\fR or \fI$XDG_CONFIG_HOME\fB/nano/nanorc\fR
+or \fB~/.config/nano/nanorc\fR, whichever is encountered first.  See
 .BR nanorc (5)
 for more information on the possible contents of those files.
 
@@ -289,12 +293,16 @@ it unique.  In multibuffer mode, \fBnano\fP will write all the open
 buffers to their respective emergency files.
 
 .SH BUGS
-Justifications (\fB^J\fR) and reindentations (\fBM\-{\fR and \fBM\-}\fR)
+Justifications (\fB^J\fR)
 are not yet covered by the general undo system.  So after a justification
-that is not immediately undone, or after any reindentation, earlier edits
+that is not immediately undone, earlier edits
 cannot be undone any more.  The workaround is, of course, to exit without
 saving.
 .sp
+The recording and playback of keyboard macros works correctly only on a
+terminal emulator, not on a Linux console (VT), because the latter is a
+deficient terminal.  And it works only with recent versions of ncurses.
+.sp
 Please report any other bugs that you encounter via:
 .br
 \fIhttps://savannah.gnu.org/bugs/?group=nano\fR.

doc/nanorc.5

@@ -16,8 +16,7 @@
 .\"   Documentation License along with this program.  If not, see
 .\"   <http://www.gnu.org/licenses/>.
 .\"
-.TH NANORC 5 "version 2.8.4" "May 2017"
-.\" Please adjust this date whenever revising the manpage.
+.TH NANORC 5 "version 2.9.2" "January 2018"
 
 .SH NAME
 nanorc \- GNU nano's configuration file
@@ -27,7 +26,9 @@ The \fInanorc\fP file contains the default settings for \fBnano\fP, a
 small and friendly editor.  The file should be in Unix format, not in
 DOS or Mac format.  During startup, \fBnano\fP will first read the
 system-wide settings, from \fB/etc/nanorc\fP (the exact path might be
-different), and then the user-specific settings, from \fB~/.nanorc\fP.
+different on your system), and then the user-specific settings, either
+from \fB~/.nanorc\fR or from \fI$XDG_CONFIG_HOME\fB/nano/nanorc\fR
+or from \fB~/.config/nano/nanorc\fR, whichever is encountered first.
 
 .SH OPTIONS
 The configuration file accepts a series of \fBset\fP and \fBunset\fP
@@ -40,7 +41,7 @@ Options in \fInanorc\fP files take precedence over nano's defaults, and
 command-line options override \fInanorc\fP settings.  Also, options that
 do not take an argument are unset by default.  So using the \fBunset\fR
 command is only needed when wanting to override a setting of the system's
-\fInanorc\fR file in your own \fB~/.nanorc\fR.  Options that take an
+\fInanorc\fR file in your own \fInanorc\fR.  Options that take an
 argument cannot be unset.
 .PP
 Below, the \fIstring\fR parameters need to be enclosed in double quotes.
@@ -57,6 +58,10 @@ When backing up files, allow the backup to succeed even if its permissions
 can't be (re)set due to special OS considerations.  You should
 NOT enable this option unless you are sure you need it.
 .TP
+.B set atblanks
+When soft line wrapping is enabled, make it wrap lines at blank characters
+(tabs and spaces) instead of always at the edge of the screen.
+.TP
 .B set autoindent
 Use auto-indentation.
 .TP
@@ -66,18 +71,19 @@ the file's name.
 .TP
 .B set backupdir "\fIdirectory\fP"
 Make and keep not just one backup file, but make and keep a uniquely
-numbered one every time a file is saved --- when backups are enabled
+numbered one every time a file is saved -- when backups are enabled
 with \fBset backup\fR or \fB\-\-backup\fR or \fB\-B\fR.
 The uniquely numbered files are stored in the specified \fIdirectory\fR.
 .TP
 .B set backwards
-Do backwards searches by default.
+Obsolete option.  Recognized but ignored.  \fB^Q\fR is available to
+start a backward search.
 .TP
 .B set boldtext
-Use bold instead of reverse video for the titlebar, statusbar, key combos,
-line numbers, and selected text.  This can be overridden for the first four
-by setting the options \fBtitlecolor\fP, \fBstatuscolor\fP, \fBkeycolor\fP,
-and \fBnumbercolor\fP.
+Use bold instead of reverse video for the title bar, status bar, key combos,
+function tags, line numbers, and selected text.  This can be overridden by
+setting the options \fBtitlecolor\fP, \fBstatuscolor\fP, \fBkeycolor\fP,
+\fBfunctioncolor\fP, \fBnumbercolor\fP, and \fBselectedcolor\fP.
 .TP
 .B set brackets "\fIstring\fP"
 Set the characters treated as closing brackets when justifying
@@ -91,14 +97,17 @@ Do case-sensitive searches by default.
 .B set constantshow
 Constantly display the cursor position in the status bar.
 (The old form of this option, '\fBset const\fR', is deprecated.)
+This overrides the option \fBquickblank\fR.
 .TP
-.B set cut
-Use cut-to-end-of-line by default, instead of cutting the whole line.
+.B set cutfromcursor
+Use cut-from-cursor-to-end-of-line by default, instead of cutting the whole line.
+(The old form of this option, '\fBset cut\fR', is deprecated.)
 .TP
 .B set fill \fInumber\fR
 Hard-wrap lines at column number \fInumber\fR.  If \fInumber\fR is 0 or less,
 the maximum line length will be the screen width less \fInumber\fP columns.
-The default value is \fB\-8\fR.
+The default value is \fB\-8\fR.  This option conflicts with
+\fBnowrap\fR -- the last one given takes effect.
 .TP
 .B set functioncolor \fIfgcolor\fR,\fIbgcolor\fR
 Specify the color combination to use for the function descriptions
@@ -106,11 +115,8 @@ in the two help lines at the bottom of the screen.
 See \fBset titlecolor\fR for more details.
 .TP
 .B set historylog
-Enable the use of \fB~/.nano/search_history\fP for saving and reading
-search/replace strings.
-.TP
-.B set justifytrim
-When justifying text, trailing whitespace will automatically be removed.
+Save the last hundred search strings and replacement strings and
+executed commands, so they can be easily reused in later sessions.
 .TP
 .B set keycolor \fIfgcolor\fR,\fIbgcolor\fR
 Specify the color combination to use for the shortcut key combos
@@ -130,7 +136,7 @@ come before the closing set, and the two sets must be in the same order.
 The default value is "\fB(<[{)>]}\fP".
 .TP
 .B set morespace
-Use the blank line below the titlebar as extra editing space.
+Use the blank line below the title bar as extra editing space.
 .TP
 .B set mouse
 Enable mouse support, if available for your system.  When enabled, mouse
@@ -156,7 +162,8 @@ Don't pause between warnings at startup.  This means that only
 the last one will be visible (when there are multiple ones).
 .TP
 .B set nowrap
-Don't hard-wrap text at all.
+Don't hard-wrap text at all.  This option conflicts with
+\fBfill\fR -- the last one given takes effect.
 .TP
 .B set numbercolor \fIfgcolor\fR,\fIbgcolor\fR
 Specify the color combination to use for line numbers.
@@ -183,13 +190,11 @@ specfified closing punctuation, optionally followed by closing brackets
 (see \fBbrackets\fP), can end sentences.  The default value is "\fB!.?\fP".
 .TP
 .B set quickblank
-Do quick statusbar blanking.  Statusbar messages will disappear after 1
-keystroke instead of 25.
+Do quick status-bar blanking: status-bar messages will disappear after 1
+keystroke instead of 25.  The option \fBconstantshow\fR overrides this.
 .TP
 .B set quiet
-\fBnano\fP will not report errors in the \fInanorc\fP file nor ask them
-to be acknowledged by pressing Enter at startup.  If this is used, it
-should be placed at the top of the file to be fully effective.
+Obsolete option.  Recognized but ignored.
 .TP
 .B set quotestr "\fIstring\fP"
 The email-quote string, used to justify email-quoted paragraphs.  This
@@ -212,6 +217,10 @@ won't work properly with this option enabled.
 .B set regexp
 Do extended regular expression searches by default.
 .TP
+.B set selectedcolor \fIfgcolor\fR,\fIbgcolor\fR
+Specify the color combination to use for selected text.
+See \fBset titlecolor\fR for more details.
+.TP
 .B set showcursor
 Put the cursor on the highlighted item in the file browser, to aid
 braille users.
@@ -234,7 +243,7 @@ Use spelling checker \fIspellprog\fP instead of the built-in one, which
 calls \fIspell\fP.
 .TP
 .B set statuscolor \fIfgcolor\fR,\fIbgcolor\fR
-Specify the color combination to use for the statusbar.
+Specify the color combination to use for the status bar.
 See \fBset titlecolor\fR for more details.
 .TP
 .B set suspend
@@ -251,12 +260,16 @@ Convert typed tabs to spaces.
 Save automatically on exit, don't prompt.
 .TP
 .B set titlecolor \fIfgcolor\fR,\fIbgcolor\fR
-Specify the color combination to use for the titlebar.
+Specify the color combination to use for the title bar.
 Valid names for the foreground and background colors are:
 .BR white ", " black ", " blue ", " green ", " red ", " cyan ", " yellow ",  and " magenta .
 The name of the foreground color may be prefixed with \fBbright\fR.
 And either "\fIfgcolor\fR" or ",\fIbgcolor\fR" may be left out.
 .TP
+.B set trimblanks
+Remove trailing whitespace from wrapped lines when automatic
+hard-wrapping occurs or when text is justified.
+.TP
 .B set unix
 Save a file by default in Unix format.  This overrides nano's
 default behavior of saving a file in the format that it had.
@@ -267,7 +280,8 @@ Disallow file modification.
 .TP
 .B set whitespace "\fIstring\fP"
 Set the two characters used to indicate the presence of tabs and
-spaces.  They must be single-column characters.
+spaces.  They must be single-column characters.  The default pair
+for a UTF-8 locale is "\fB\[Fc]\[md]\fR", and for other locales "\fB>.\fR".
 .TP
 .B set wordbounds
 Detect word boundaries differently by treating punctuation
@@ -286,53 +300,58 @@ powerful enough to fully parse a file.  Nevertheless, regular
 expressions can do a lot and are easy to make, so they are a
 good fit for a small editor like \fBnano\fR.
 .sp
-A separate syntax can be defined for each kind of file
+For each kind of file a separate syntax can be defined
 via the following commands:
 .TP
 .BR syntax " ""\fIname\fR"" [""\fIfileregex\fR"" ...]"
-Defines a syntax named \fIname\fP which can be activated via the
-.BR \-Y / \-\-syntax
-command-line option, or will be automatically activated if
-the current filename matches the extended regular expression
-\fIfileregex\fP.  All subsequent \fBcolor\fR, \fBicolor\fR,
-\fBheader\fR and other such statements will apply to this
-\fIname\fP syntax until a new \fBsyntax\fR command is encountered.
+Start the definition of a syntax with this \fIname\fR.
+All subsequent \fBcolor\fR and other such commands
+will be added to this syntax, until a new \fBsyntax\fR
+command is encountered.
 
-The \fBnone\fP syntax is reserved; specifying it on the command line is
-the same as not having a syntax at all.  The \fBdefault\fP syntax is
-special: it takes no \fIfileregex\fP, and applies to files that don't
-match any syntax's \fIfileregex\fP.
+When \fBnano\fR is run, this syntax will be automatically
+activated if the current filename matches the extended regular
+expression \fIfileregex\fR.  Or the syntax can be explicitly
+activated by using the \fB-Y\fR or \fB\-\-syntax\fR
+command-line option followed by the \fIname\fR.
+
+The syntax "\fBdefault\fP" is special: it takes no \fIfileregex\fR,
+and applies to files that don't match any syntax's regexes.
+The syntax "\fBnone\fP" is reserved; specifying it on the command line
+is the same as not having a syntax at all.
+.TP
+.BR header " ""\fIregex\fR"" " ...
+If from all defined syntaxes no \fIfileregex\fR matched, then compare
+this \fIregex\fR (or regexes) against the first line of the current file,
+to determine whether this syntax should be used for it.
+.TP
+.BR magic " ""\fIregex\fR"" " ...
+If no \fIfileregex\fR matched and no \fBheader\fR regex matched
+either, then compare this \fIregex\fR (or regexes) against the
+result of querying the \fBmagic\fP database about the current
+file, to determine whether this syntax should be used for it.
+(This functionality only works when \fBlibmagic\fP is installed on the
+system and will be silently ignored otherwise.)
 .TP
 .BI linter " program " \fR[ "arg " \fR...]
-Use the given \fIprogram\fR to run a syntax check on the current file
-(this overrides the speller function when defined).
+Use the given \fIprogram\fR to run a syntax check on the current file.
+(This overrides the speller function.)
 .TP
 .BI formatter " program " \fR[ "arg " \fR...]
-Use the given \fIprogram\fR to automatically reformat text.
-Useful in certain programming languages (e.g. Go).
+Use the given \fIprogram\fR to automatically reformat text --
+useful in a programming language like Go.
+(This overrides the speller and linter functions.)
 .TP
-.BR header " \fIregex\fR " ...
-Add one or more regexes which will
-be compared against the very first line of the file to be edited,
-to determine whether this syntax should be used for that file.
-.TP
-.BR magic " \fIregex\fR " ...
-Add one or more regexes which
-will be compared against the result of querying the \fBmagic\fP
-database about the file to be edited, to determine whether this
-syntax should be used for that file.  This
-functionality only works when \fBlibmagic\fP is installed on the
-system and will be silently ignored otherwise.
-.TP
-.BI comment " string"
-Use the given string for commenting and uncommenting lines.  A vertical bar or
-pipe character (|) designates bracket-style comments; for example, "/*|*/" for
+.BR comment " ""\fIstring\fR"""
+Use the given string for commenting and uncommenting lines.
+If the string contains a vertical bar or pipe character (\fB|\fR),
+this designates bracket-style comments; for example, "\fB/*|*/\fR" for
 CSS files.  The characters before the pipe are prepended to the line and the
 characters after the pipe are appended at the end of the line.  If no pipe
-character is present, the entire string is prepended; for example, "#" for
-Python files.  If empty double quotes are specified, the comment/uncomment
-function is disabled; for example, "" for JSON.  Double quotes or backslashes
-may be escaped with a backslash; for example, ".\\"" for man page source.
+character is present, the full string is prepended; for example, "\fB#\fR"
+for Python files.  If empty double quotes are specified, the comment/uncomment
+function is disabled; for example, "" for JSON.
+The default value is "\fB#\fP".
 .TP
 .B color \fIfgcolor\fR,\fIbgcolor\fR """\fIregex\fR""" ...
 Display all pieces of text that match
@@ -365,13 +384,13 @@ Read in self-contained color syntaxes from \fIsyntaxfile\fP.  Note that
 \fIsyntaxfile\fP may contain only the above commands, from \fBsyntax\fP
 to \fBicolor\fP.
 .TP
-.BI extendsyntax " name directive " \fR[ "arg " \fR...]
-Extend the syntax previously defined as \fIname\fP to include
-new information.  This allows adding a new \fBcolor\fP, \fBicolor\fP,
+.BI extendsyntax " name command " \fR[ "arg " \fR...]
+Extend the syntax previously defined as \fIname\fR with another
+\fIcommand\fR.  This allows adding a new \fBcolor\fP, \fBicolor\fP,
 \fBheader\fP, \fBmagic\fP, \fBcomment\fP, \fBlinter\fP, or \fBformatter\fP
-directive to an already defined syntax -- useful when you want to
+command to an already defined syntax -- useful when you want to
 slightly improve a syntax defined in one of the system-installed
-files (which are normally not writable).
+files (which normally are not writable).
 
 .SH REBINDING KEYS
 Key bindings can be changed via the following two commands:
@@ -419,15 +438,18 @@ Exits from the program (or from the help viewer or the file browser).
 Writes the current buffer to disk, asking for a name.
 .TP
 .B savefile
-Writes the current file to disk without prompting or warning.
+Writes the current file to disk without prompting.
 .TP
 .B insert
 Inserts a file into the current buffer (at the current cursor position),
 or into a new buffer when option \fBmultibuffer\fR is set.
 .TP
 .B whereis
-Searches for text in the current buffer -- or for filenames matching
-a string in the current list in the file browser.
+Starts a forward search for text in the current buffer -- or for filenames
+matching a string in the current list in the file browser.
+.TP
+.B wherewas
+Starts a backward search for text in the current buffer.
 .TP
 .B searchagain
 Repeats the last search command without prompting.
@@ -541,10 +563,10 @@ Moves the cursor to the beginning of the current or preceding block of text.
 .B nextblock
 Moves the cursor to the beginning of the next block of text.
 .TP
-.B prevpage
+.B pageup
 Goes up one screenful.
 .TP
-.B nextpage
+.B pagedown
 Goes down one screenful.
 .TP
 .B firstline
@@ -585,6 +607,13 @@ Deletes the character under the cursor.
 .B backspace
 Deletes the character before the cursor.
 .TP
+.B recordmacro
+Starts the recording of keystrokes -- the keystrokes are stored
+as a macro.  When already recording, the recording is stopped.
+.TP
+.B runmacro
+Replays the keystrokes of the last recorded macro.
+.TP
 .B undo
 Undoes the last performed text action (add text, delete text, etc).
 .TP
@@ -646,7 +675,7 @@ When about to write a file, discard the current buffer without saving.
 (This function is bound by default only when option \fB\-\-tempfile\fR
 is in effect.)
 .TP
-.B tofiles
+.B browser
 Starts the file browser, allowing to select a file from a list.
 .TP
 .B gotodir
@@ -666,7 +695,7 @@ Toggles the presence of the two-line list of key bindings at the bottom of the s
 Toggles the constant display of the current line, column, and character positions.
 .TP
 .B morespace
-Toggles the presence of the blank line which 'separates' the titlebar from the file text.
+Toggles the presence of the blank line that 'separates' the title bar from the file text.
 .TP
 .B smoothscroll
 Toggles smooth scrolling (when moving around with the arrow keys).
@@ -771,7 +800,7 @@ for \fBunbind\fR it means all menus where the specified \fIkey\fR exists.
 .B /etc/nanorc
 System-wide configuration file.
 .TP
-.B ~/.nanorc
+.BR ~/.nanorc " or " \fI$XDG_CONFIG_HOME\fB/nano/nanorc " or " ~/.config/nano/nanorc
 Per-user configuration file.
 
 .SH SEE ALSO

doc/rnano.1

@@ -16,8 +16,7 @@
 .\"   Documentation License along with this program.  If not, see
 .\"   <http://www.gnu.org/licenses/>.
 .\"
-.TH RNANO 1 "version 2.8.4" "May 2017"
-.\" Please adjust this date whenever revising the manpage.
+.TH RNANO 1 "version 2.9.2" "January 2018"
 
 .SH NAME
 rnano \- a restricted nano

doc/sample.nanorc.in

@@ -15,10 +15,9 @@
 ## its end.  For example, for the "brackets" option, ""')>]}" will match
 ## ", ', ), >, ], and }.
 
-## Silently ignore problems with unknown directives in the nanorc file.
-## Useful when your nanorc file might be read on systems with multiple
-## versions of nano installed (e.g. your home directory is on NFS).
-# set quiet
+## When soft line wrapping is enabled, make it wrap lines at blanks
+## (tabs and spaces) instead of always at the edge of the screen.
+# set atblanks
 
 ## Use auto-indentation.
 # set autoindent
@@ -29,9 +28,6 @@
 ## The directory to put unique backup files in.
 # set backupdir ""
 
-## Do backwards searches by default.
-# set backwards
-
 ## Use bold text instead of reverse video text.
 # set boldtext
 
@@ -44,13 +40,14 @@
 ## Do case-sensitive searches by default.
 # set casesensitive
 
-## Constantly display the cursor position in the statusbar.  Note that
+## Constantly display the cursor position in the status bar.  Note that
 ## this overrides "quickblank".
 # set constantshow
 ## (The old form, 'const', is deprecated.)
 
-## Use cut-to-end-of-line by default.
-# set cut
+## Use cut-from-cursor-to-end-of-line by default.
+# set cutfromcursor
+## (The old form, 'cut', is deprecated.)
 
 ## Set the line length for wrapping text and justifying paragraphs.
 ## If the value is 0 or less, the wrapping point will be the screen
@@ -60,14 +57,11 @@
 ## Remember the used search/replace strings for the next session.
 # set historylog
 
-## Make the justify command kill whitespace at the end of lines.
-# set justifytrim
-
 ## Display line numbers to the left of the text.
 # set linenumbers
 
 ## Enable vim-style lock-files.  This is just to let a vim user know you
-## are editing a file [s]he is trying to edit and vice versa. There are
+## are editing a file [s]he is trying to edit and vice versa.  There are
 ## no plans to implement vim-style undo state in these files.
 # set locking
 
@@ -76,7 +70,7 @@
 ## come before the latter set, and both must be in the same order.
 # set matchbrackets "(<[{)>]}"
 
-## Use the blank line below the titlebar as extra editing space.
+## Use the blank line below the title bar as extra editing space.
 # set morespace
 
 ## Enable mouse support, if available for your system.  When enabled,
@@ -124,8 +118,8 @@
 ## sentences.
 # set punct "!.?"
 
-## Do quick statusbar blanking.  Statusbar messages will disappear after
-## 1 keystroke instead of 26.  Note that "const" overrides this.
+## Do quick status-bar blanking.  Status-bar messages will disappear after
+## 1 keystroke instead of 26.  Note that "constantshow" overrides this.
 # set quickblank
 
 ## The email-quote string, used to justify email-quoted paragraphs.
@@ -163,7 +157,7 @@
 # set softwrap
 
 ## Use this spelling checker instead of the internal one.  This option
-## does not properly have a default value.
+## does not have a default value.
 # set speller "aspell -x -c"
 
 ## Allow nano to be suspended.
@@ -178,6 +172,9 @@
 ## Save automatically on exit; don't prompt.
 # set tempfile
 
+## Snip whitespace at the end of lines when justifying or hard-wrapping.
+# set trimblanks
+
 ## Disallow file modification.  Why would you want this in an rcfile? ;)
 # set view
 
@@ -203,12 +200,14 @@
 ## These are examples; by default there are no colors.
 # set titlecolor brightwhite,blue
 # set statuscolor brightwhite,green
+# set selectedcolor brightwhite,magenta
 # set numbercolor cyan
 # set keycolor cyan
 # set functioncolor green
 ## In root's .nanorc you might want to use:
 # set titlecolor brightwhite,red
 # set statuscolor brightwhite,red
+# set selectedcolor brightwhite,cyan
 # set numbercolor magenta
 # set keycolor brightmagenta
 # set functioncolor magenta
@@ -262,11 +261,8 @@
 ## Key bindings.
 ## See nanorc(5) (section REBINDING KEYS) for more details on this.
 ##
-## The following five functions are not bound to any key by default.
-## You may wish to choose different keys than the ones suggested here.
-# bind ^S savefile main
-# bind M-Q findprevious main
-# bind M-W findnext main
+## The following two functions are not bound to any key by default.
+## You may wish to choose other keys than the ones suggested here.
 # bind M-B cutwordleft main
 # bind M-N cutwordright main
 

po/POTFILES.in

@@ -5,6 +5,7 @@ src/color.c
 src/files.c
 src/global.c
 src/help.c
+src/history.c
 src/nano.c
 src/prompt.c
 src/rcfile.c

src/Makefile.am

@@ -28,6 +28,7 @@ nano_SOURCES =	browser.c \
 		files.c \
 		global.c \
 		help.c \
+		history.c \
 		move.c \
 		nano.c \
 		nano.h \
@@ -37,9 +38,10 @@ nano_SOURCES =	browser.c \
 		search.c \
 		text.c \
 		utils.c \
-		winio.c 
+		winio.c
 
-nano_LDADD = @LIBINTL@ $(top_builddir)/lib/libgnu.a $(LIB_CLOCK_GETTIME)
+nano_LDADD = @LIBINTL@ $(top_builddir)/lib/libgnu.a \
+		$(LIB_CLOCK_GETTIME) $(LIBTHREAD)
 
 install-exec-hook:
 	cd $(DESTDIR)$(bindir) && rm -f rnano && $(LN_S) nano rnano

src/color.c

@@ -2,7 +2,7 @@
  *   color.c  --  This file is part of GNU nano.                          *
  *                                                                        *
  *   Copyright (C) 2001-2011, 2013-2017 Free Software Foundation, Inc.    *
- *   Copyright (C) 2014, 2015, 2016, 2017 Benno Schulenberg               *
+ *   Copyright (C) 2014-2017 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    *
@@ -21,421 +21,416 @@
 
 #include "proto.h"
 
-#include <stdio.h>
-#include <string.h>
 #include <errno.h>
-#include <time.h>
-#include <unistd.h>
-
 #ifdef HAVE_MAGIC_H
 #include <magic.h>
 #endif
+#include <string.h>
+#include <unistd.h>
 
-#ifndef DISABLE_COLOR
+#ifdef ENABLE_COLOR
+
+/* For early versions of ncurses-6.0, use an additional A_PROTECT attribute
+ * for all colors, in order to work around an ncurses miscoloring bug. */
+#if defined(NCURSES_VERSION_MAJOR) && (NCURSES_VERSION_MAJOR == 6) && \
+		(NCURSES_VERSION_MINOR == 0) && (NCURSES_VERSION_PATCH < 20151017)
+#define A_BANDAID  A_PROTECT
+#else
+#define A_BANDAID  A_NORMAL
+#endif
 
 /* Initialize the colors for nano's interface, and assign pair numbers
  * for the colors in each syntax. */
 void set_colorpairs(void)
 {
-    const syntaxtype *sint;
-    bool using_defaults = FALSE;
-    short foreground, background;
-    size_t i;
+	const syntaxtype *sint;
+	bool using_defaults = FALSE;
+	short foreground, background;
+	size_t i;
 
-    /* Tell ncurses to enable colors. */
-    start_color();
+	/* Tell ncurses to enable colors. */
+	start_color();
 
 #ifdef HAVE_USE_DEFAULT_COLORS
-    /* Allow using the default colors, if available. */
-    using_defaults = (use_default_colors() != ERR);
+	/* Allow using the default colors, if available. */
+	using_defaults = (use_default_colors() != ERR);
 #endif
 
-    /* Initialize the color pairs for nano's interface elements. */
-    for (i = 0; i < NUMBER_OF_ELEMENTS; i++) {
-	bool bright = FALSE;
+	/* Initialize the color pairs for nano's interface elements. */
+	for (i = 0; i < NUMBER_OF_ELEMENTS; i++) {
+		bool bright = FALSE;
 
-	if (parse_color_names(specified_color_combo[i],
-			&foreground, &background, &bright)) {
-	    if (foreground == -1 && !using_defaults)
-		foreground = COLOR_WHITE;
-	    if (background == -1 && !using_defaults)
-		background = COLOR_BLACK;
-	    init_pair(i + 1, foreground, background);
-	    interface_color_pair[i] =
-			COLOR_PAIR(i + 1) | (bright ? A_BOLD : A_NORMAL);
-	}
-	else {
-	    if (i != FUNCTION_TAG)
-		interface_color_pair[i] = hilite_attribute;
-	    else
-		interface_color_pair[i] = A_NORMAL;
+		if (specified_color_combo[i] != NULL &&
+						parse_color_names(specified_color_combo[i],
+								&foreground, &background, &bright)) {
+			if (foreground == -1 && !using_defaults)
+				foreground = COLOR_WHITE;
+			if (background == -1 && !using_defaults)
+				background = COLOR_BLACK;
+			init_pair(i + 1, foreground, background);
+			interface_color_pair[i] = COLOR_PAIR(i + 1) | A_BANDAID |
+										(bright ? A_BOLD : A_NORMAL);
+		} else {
+			if (i != FUNCTION_TAG)
+				interface_color_pair[i] = hilite_attribute;
+			else
+				interface_color_pair[i] = A_NORMAL;
+		}
+
+		free(specified_color_combo[i]);
+		specified_color_combo[i] = NULL;
 	}
 
-	free(specified_color_combo[i]);
-	specified_color_combo[i] = NULL;
-    }
+	/* For each syntax, go through its list of colors and assign each
+	 * its pair number, giving identical color pairs the same number. */
+	for (sint = syntaxes; sint != NULL; sint = sint->next) {
+		colortype *ink;
+		int new_number = NUMBER_OF_ELEMENTS + 1;
 
-    /* For each syntax, go through its list of colors and assign each
-     * its pair number, giving identical color pairs the same number. */
-    for (sint = syntaxes; sint != NULL; sint = sint->next) {
-	colortype *ink;
-	int new_number = NUMBER_OF_ELEMENTS + 1;
+		for (ink = sint->color; ink != NULL; ink = ink->next) {
+			const colortype *beforenow = sint->color;
 
-	for (ink = sint->color; ink != NULL; ink = ink->next) {
-	    const colortype *beforenow = sint->color;
+			while (beforenow != ink && (beforenow->fg != ink->fg ||
+										beforenow->bg != ink->bg ||
+										beforenow->bright != ink->bright))
+				beforenow = beforenow->next;
 
-	    while (beforenow != ink && (beforenow->fg != ink->fg ||
-					beforenow->bg != ink->bg ||
-					beforenow->bright != ink->bright))
-		beforenow = beforenow->next;
+			if (beforenow != ink)
+				ink->pairnum = beforenow->pairnum;
+			else
+				ink->pairnum = new_number++;
 
-	    if (beforenow != ink)
-		ink->pairnum = beforenow->pairnum;
-	    else
-		ink->pairnum = new_number++;
-
-	    ink->attributes = COLOR_PAIR(ink->pairnum) |
-				(ink->bright ? A_BOLD : A_NORMAL);
+			ink->attributes = COLOR_PAIR(ink->pairnum) | A_BANDAID |
+								(ink->bright ? A_BOLD : A_NORMAL);
+		}
 	}
-    }
 }
 
 /* Initialize the color information. */
 void color_init(void)
 {
-    const colortype *ink;
-    bool using_defaults = FALSE;
-    short foreground, background;
+	const colortype *ink;
+	bool using_defaults = FALSE;
+	short foreground, background;
 
-    /* If the terminal is not capable of colors, forget it. */
-    if (!has_colors())
-	return;
+	/* If the terminal is not capable of colors, forget it. */
+	if (!has_colors())
+		return;
 
 #ifdef HAVE_USE_DEFAULT_COLORS
-    /* Allow using the default colors, if available. */
-    using_defaults = (use_default_colors() != ERR);
+	/* Allow using the default colors, if available. */
+	using_defaults = (use_default_colors() != ERR);
 #endif
 
-    /* For each coloring expression, initialize the color pair. */
-    for (ink = openfile->colorstrings; ink != NULL; ink = ink->next) {
-	foreground = ink->fg;
-	background = ink->bg;
+	/* For each coloring expression, initialize the color pair. */
+	for (ink = openfile->colorstrings; ink != NULL; ink = ink->next) {
+		foreground = ink->fg;
+		background = ink->bg;
 
-	if (foreground == -1 && !using_defaults)
-	    foreground = COLOR_WHITE;
+		if (foreground == -1 && !using_defaults)
+			foreground = COLOR_WHITE;
 
-	if (background == -1 && !using_defaults)
-	    background = COLOR_BLACK;
+		if (background == -1 && !using_defaults)
+			background = COLOR_BLACK;
 
-	init_pair(ink->pairnum, foreground, background);
-#ifdef DEBUG
-	fprintf(stderr, "init_pair(): fg = %hd, bg = %hd\n", foreground, background);
-#endif
-    }
+		init_pair(ink->pairnum, foreground, background);
+	}
 
-    have_palette = TRUE;
+	have_palette = TRUE;
 }
 
 /* Try to match the given shibboleth string with one of the regexes in
  * the list starting at head.  Return TRUE upon success. */
 bool found_in_list(regexlisttype *head, const char *shibboleth)
 {
-    regexlisttype *item;
-    regex_t rgx;
+	regexlisttype *item;
+	regex_t rgx;
 
-    for (item = head; item != NULL; item = item->next) {
-	regcomp(&rgx, fixbounds(item->full_regex), NANO_REG_EXTENDED);
+	for (item = head; item != NULL; item = item->next) {
+		regcomp(&rgx, fixbounds(item->full_regex), NANO_REG_EXTENDED);
 
-	if (regexec(&rgx, shibboleth, 0, NULL, 0) == 0) {
-	    regfree(&rgx);
-	    return TRUE;
+		if (regexec(&rgx, shibboleth, 0, NULL, 0) == 0) {
+			regfree(&rgx);
+			return TRUE;
+		}
+
+		regfree(&rgx);
 	}
 
-	regfree(&rgx);
-    }
-
-    return FALSE;
+	return FALSE;
 }
 
 /* Update the color information based on the current filename and content. */
 void color_update(void)
 {
-    syntaxtype *sint = NULL;
-    colortype *ink;
+	syntaxtype *sint = NULL;
+	colortype *ink;
 
-    /* If the rcfiles were not read, or contained no syntaxes, get out. */
-    if (syntaxes == NULL)
-	return;
+	/* If the rcfiles were not read, or contained no syntaxes, get out. */
+	if (syntaxes == NULL)
+		return;
 
-    /* If we specified a syntax-override string, use it. */
-    if (syntaxstr != NULL) {
-	/* An override of "none" is like having no syntax at all. */
-	if (strcmp(syntaxstr, "none") == 0)
-	    return;
+	/* If we specified a syntax-override string, use it. */
+	if (syntaxstr != NULL) {
+		/* An override of "none" is like having no syntax at all. */
+		if (strcmp(syntaxstr, "none") == 0)
+			return;
 
-	for (sint = syntaxes; sint != NULL; sint = sint->next) {
-	    if (strcmp(sint->name, syntaxstr) == 0)
-		break;
+		for (sint = syntaxes; sint != NULL; sint = sint->next) {
+			if (strcmp(sint->name, syntaxstr) == 0)
+				break;
+		}
+
+		if (sint == NULL && !inhelp)
+			statusline(ALERT, _("Unknown syntax name: %s"), syntaxstr);
 	}
 
-	if (sint == NULL)
-	    statusline(ALERT, _("Unknown syntax name: %s"), syntaxstr);
-    }
+	/* If no syntax-override string was specified, or it didn't match,
+	 * try finding a syntax based on the filename (extension). */
+	if (sint == NULL && !inhelp) {
+		char *reserved = charalloc(PATH_MAX + 1);
+		char *currentdir = getcwd(reserved, PATH_MAX + 1);
+		char *joinednames = charalloc(PATH_MAX + 1);
+		char *fullname = NULL;
 
-    /* If no syntax-override string was specified, or it didn't match,
-     * try finding a syntax based on the filename (extension). */
-    if (sint == NULL) {
-	char *reserved = charalloc(PATH_MAX + 1);
-	char *currentdir = getcwd(reserved, PATH_MAX + 1);
-	char *joinednames = charalloc(PATH_MAX + 1);
-	char *fullname = NULL;
+		if (currentdir == NULL)
+			free(reserved);
+		else {
+			/* Concatenate the current working directory with the
+			 * specified filename, and canonicalize the result. */
+			sprintf(joinednames, "%s/%s", currentdir, openfile->filename);
+			fullname = get_full_path(joinednames);
+			free(currentdir);
+		}
 
-	if (currentdir == NULL)
-	    free(reserved);
-	else {
-	    /* Concatenate the current working directory with the
-	     * specified filename, and canonicalize the result. */
-	    sprintf(joinednames, "%s/%s", currentdir, openfile->filename);
-	    fullname = get_full_path(joinednames);
-	    free(currentdir);
+		if (fullname == NULL)
+			fullname = mallocstrcpy(fullname, openfile->filename);
+
+		for (sint = syntaxes; sint != NULL; sint = sint->next) {
+			if (found_in_list(sint->extensions, fullname))
+				break;
+		}
+
+		free(joinednames);
+		free(fullname);
 	}
 
-	if (fullname == NULL)
-	    fullname = mallocstrcpy(fullname, openfile->filename);
-
-	for (sint = syntaxes; sint != NULL; sint = sint->next) {
-	    if (found_in_list(sint->extensions, fullname))
-		break;
+	/* If the filename didn't match anything, try the first line. */
+	if (sint == NULL && !inhelp) {
+		for (sint = syntaxes; sint != NULL; sint = sint->next) {
+			if (found_in_list(sint->headers, openfile->fileage->data))
+				break;
+		}
 	}
 
-	free(joinednames);
-	free(fullname);
-    }
-
-    /* If the filename didn't match anything, try the first line. */
-    if (sint == NULL) {
-#ifdef DEBUG
-	fprintf(stderr, "No result from file extension, trying headerline...\n");
-#endif
-	for (sint = syntaxes; sint != NULL; sint = sint->next) {
-	    if (found_in_list(sint->headers, openfile->fileage->data))
-		break;
-	}
-    }
-
 #ifdef HAVE_LIBMAGIC
-    /* If we still don't have an answer, try using magic. */
-    if (sint == NULL) {
-	struct stat fileinfo;
-	magic_t cookie = NULL;
-	const char *magicstring = NULL;
-#ifdef DEBUG
-	fprintf(stderr, "No result from headerline either, trying libmagic...\n");
-#endif
-	if (stat(openfile->filename, &fileinfo) == 0) {
-	    /* Open the magic database and get a diagnosis of the file. */
-	    cookie = magic_open(MAGIC_SYMLINK |
-#ifdef DEBUG
-				    MAGIC_DEBUG | MAGIC_CHECK |
-#endif
-				    MAGIC_ERROR);
-	    if (cookie == NULL || magic_load(cookie, NULL) < 0)
-		statusline(ALERT, _("magic_load() failed: %s"), strerror(errno));
-	    else {
-		magicstring = magic_file(cookie, openfile->filename);
-		if (magicstring == NULL)
-		    statusline(ALERT, _("magic_file(%s) failed: %s"),
-				openfile->filename, magic_error(cookie));
-#ifdef DEBUG
-		fprintf(stderr, "Returned magic string is: %s\n", magicstring);
-#endif
-	    }
-	}
+	/* If we still don't have an answer, try using magic. */
+	if (sint == NULL && !inhelp) {
+		struct stat fileinfo;
+		magic_t cookie = NULL;
+		const char *magicstring = NULL;
 
-	/* Now try and find a syntax that matches the magic string. */
-	if (magicstring != NULL) {
-	    for (sint = syntaxes; sint != NULL; sint = sint->next) {
-		if (found_in_list(sint->magics, magicstring))
-		    break;
-	    }
-	}
+		if (stat(openfile->filename, &fileinfo) == 0) {
+			/* Open the magic database and get a diagnosis of the file. */
+			cookie = magic_open(MAGIC_SYMLINK |
+#ifdef DEBUG
+									MAGIC_DEBUG | MAGIC_CHECK |
+#endif
+									MAGIC_ERROR);
+			if (cookie == NULL || magic_load(cookie, NULL) < 0)
+				statusline(ALERT, _("magic_load() failed: %s"), strerror(errno));
+			else {
+				magicstring = magic_file(cookie, openfile->filename);
+				if (magicstring == NULL)
+					statusline(ALERT, _("magic_file(%s) failed: %s"),
+								openfile->filename, magic_error(cookie));
+			}
+		}
 
-	if (stat(openfile->filename, &fileinfo) == 0)
-	    magic_close(cookie);
-    }
+		/* Now try and find a syntax that matches the magic string. */
+		if (magicstring != NULL) {
+			for (sint = syntaxes; sint != NULL; sint = sint->next) {
+				if (found_in_list(sint->magics, magicstring))
+					break;
+			}
+		}
+
+		if (stat(openfile->filename, &fileinfo) == 0)
+			magic_close(cookie);
+	}
 #endif /* HAVE_LIBMAGIC */
 
-    /* If nothing at all matched, see if there is a default syntax. */
-    if (sint == NULL) {
-	for (sint = syntaxes; sint != NULL; sint = sint->next) {
-	    if (strcmp(sint->name, "default") == 0)
-		break;
-	}
-    }
-
-    openfile->syntax = sint;
-    openfile->colorstrings = (sint == NULL ? NULL : sint->color);
-
-    /* If a syntax was found, compile its specified regexes (which have
-     * already been checked for validity when they were read in). */
-    for (ink = openfile->colorstrings; ink != NULL; ink = ink->next) {
-	if (ink->start == NULL) {
-	    ink->start = (regex_t *)nmalloc(sizeof(regex_t));
-	    regcomp(ink->start, fixbounds(ink->start_regex), ink->rex_flags);
+	/* If nothing at all matched, see if there is a default syntax. */
+	if (sint == NULL && !inhelp) {
+		for (sint = syntaxes; sint != NULL; sint = sint->next) {
+			if (strcmp(sint->name, "default") == 0)
+				break;
+		}
 	}
 
-	if (ink->end_regex != NULL && ink->end == NULL) {
-	    ink->end = (regex_t *)nmalloc(sizeof(regex_t));
-	    regcomp(ink->end, fixbounds(ink->end_regex), ink->rex_flags);
+	openfile->syntax = sint;
+	openfile->colorstrings = (sint == NULL ? NULL : sint->color);
+
+	/* If a syntax was found, compile its specified regexes (which have
+	 * already been checked for validity when they were read in). */
+	for (ink = openfile->colorstrings; ink != NULL; ink = ink->next) {
+		if (ink->start == NULL) {
+			ink->start = (regex_t *)nmalloc(sizeof(regex_t));
+			regcomp(ink->start, fixbounds(ink->start_regex), ink->rex_flags);
+		}
+
+		if (ink->end_regex != NULL && ink->end == NULL) {
+			ink->end = (regex_t *)nmalloc(sizeof(regex_t));
+			regcomp(ink->end, fixbounds(ink->end_regex), ink->rex_flags);
+		}
 	}
-    }
 }
 
 /* Determine whether the matches of multiline regexes are still the same,
  * and if not, schedule a screen refresh, so things will be repainted. */
 void check_the_multis(filestruct *line)
 {
-    const colortype *ink;
-    bool astart, anend;
-    regmatch_t startmatch, endmatch;
+	const colortype *ink;
+	bool astart, anend;
+	regmatch_t startmatch, endmatch;
 
-    /* If there is no syntax or no multiline regex, there is nothing to do. */
-    if (openfile->syntax == NULL || openfile->syntax->nmultis == 0)
-	return;
+	/* If there is no syntax or no multiline regex, there is nothing to do. */
+	if (openfile->syntax == NULL || openfile->syntax->nmultis == 0)
+		return;
 
-    for (ink = openfile->colorstrings; ink != NULL; ink = ink->next) {
-	/* If it's not a multiline regex, skip. */
-	if (ink->end == NULL)
-	    continue;
+	for (ink = openfile->colorstrings; ink != NULL; ink = ink->next) {
+		/* If it's not a multiline regex, skip. */
+		if (ink->end == NULL)
+			continue;
 
-	alloc_multidata_if_needed(line);
+		alloc_multidata_if_needed(line);
 
-	astart = (regexec(ink->start, line->data, 1, &startmatch, 0) == 0);
-	anend = (regexec(ink->end, line->data, 1, &endmatch, 0) == 0);
+		astart = (regexec(ink->start, line->data, 1, &startmatch, 0) == 0);
+		anend = (regexec(ink->end, line->data, 1, &endmatch, 0) == 0);
 
-	/* Check whether the multidata still matches the current situation. */
-	if (line->multidata[ink->id] == CNONE ||
-			line->multidata[ink->id] == CWHOLELINE) {
-	    if (!astart && !anend)
-		continue;
-	} else if (line->multidata[ink->id] == CSTARTENDHERE) {
-	    if (astart && anend && startmatch.rm_so < endmatch.rm_so)
-		continue;
-	} else if (line->multidata[ink->id] == CBEGINBEFORE) {
-	    if (!astart && anend)
-		continue;
-	} else if (line->multidata[ink->id] == CENDAFTER) {
-	    if (astart && !anend)
-		continue;
+		/* Check whether the multidata still matches the current situation. */
+		if (line->multidata[ink->id] == CNONE ||
+						line->multidata[ink->id] == CWHOLELINE) {
+			if (!astart && !anend)
+				continue;
+		} else if (line->multidata[ink->id] == CSTARTENDHERE) {
+			if (astart && anend && startmatch.rm_so < endmatch.rm_so)
+				continue;
+		} else if (line->multidata[ink->id] == CBEGINBEFORE) {
+			if (!astart && anend)
+				continue;
+		} else if (line->multidata[ink->id] == CENDAFTER) {
+			if (astart && !anend)
+				continue;
+		}
+
+		/* There is a mismatch, so something changed: repaint. */
+		refresh_needed = TRUE;
+		return;
 	}
-
-	/* There is a mismatch, so something changed: repaint. */
-	refresh_needed = TRUE;
-	return;
-    }
 }
 
 /* Allocate (for one line) the cache space for multiline color regexes. */
 void alloc_multidata_if_needed(filestruct *fileptr)
 {
-    int i;
+	int i;
 
-    if (fileptr->multidata == NULL) {
-	fileptr->multidata = (short *)nmalloc(openfile->syntax->nmultis * sizeof(short));
+	if (fileptr->multidata == NULL) {
+		fileptr->multidata = (short *)nmalloc(openfile->syntax->nmultis * sizeof(short));
 
-	for (i = 0; i < openfile->syntax->nmultis; i++)
-	    fileptr->multidata[i] = -1;
-    }
+		for (i = 0; i < openfile->syntax->nmultis; i++)
+			fileptr->multidata[i] = -1;
+	}
 }
 
 /* Precalculate the multi-line start and end regex info so we can
  * speed up rendering (with any hope at all...). */
 void precalc_multicolorinfo(void)
 {
-    const colortype *ink;
-    regmatch_t startmatch, endmatch;
-    filestruct *line, *tailline;
+	const colortype *ink;
+	regmatch_t startmatch, endmatch;
+	filestruct *line, *tailline;
 
-    if (openfile->colorstrings == NULL || ISSET(NO_COLOR_SYNTAX))
-	return;
+	if (openfile->colorstrings == NULL || ISSET(NO_COLOR_SYNTAX))
+		return;
 
 #ifdef DEBUG
-    fprintf(stderr, "Precalculating the multiline color info...\n");
+	fprintf(stderr, "Precalculating the multiline color info...\n");
 #endif
 
-    for (ink = openfile->colorstrings; ink != NULL; ink = ink->next) {
-	/* If this is not a multi-line regex, skip it. */
-	if (ink->end == NULL)
-	    continue;
+	for (ink = openfile->colorstrings; ink != NULL; ink = ink->next) {
+		/* If this is not a multi-line regex, skip it. */
+		if (ink->end == NULL)
+			continue;
 
-	for (line = openfile->fileage; line != NULL; line = line->next) {
-	    int index = 0;
+		for (line = openfile->fileage; line != NULL; line = line->next) {
+			int index = 0;
 
-	    alloc_multidata_if_needed(line);
-	    /* Assume nothing applies until proven otherwise below. */
-	    line->multidata[ink->id] = CNONE;
+			alloc_multidata_if_needed(line);
+			/* Assume nothing applies until proven otherwise below. */
+			line->multidata[ink->id] = CNONE;
 
-	    /* For an unpaired start match, mark all remaining lines. */
-	    if (line->prev && line->prev->multidata[ink->id] == CWOULDBE) {
-		line->multidata[ink->id] = CWOULDBE;
-		continue;
-	    }
+			/* For an unpaired start match, mark all remaining lines. */
+			if (line->prev && line->prev->multidata[ink->id] == CWOULDBE) {
+				line->multidata[ink->id] = CWOULDBE;
+				continue;
+			}
 
-	    /* When the line contains a start match, look for an end, and if
-	     * found, mark all the lines that are affected. */
-	    while (regexec(ink->start, line->data + index, 1,
-			&startmatch, (index == 0) ? 0 : REG_NOTBOL) == 0) {
-		/* Begin looking for an end match after the start match. */
-		index += startmatch.rm_eo;
+			/* When the line contains a start match, look for an end, and if
+			 * found, mark all the lines that are affected. */
+			while (regexec(ink->start, line->data + index, 1,
+						&startmatch, (index == 0) ? 0 : REG_NOTBOL) == 0) {
+				/* Begin looking for an end match after the start match. */
+				index += startmatch.rm_eo;
 
-		/* If there is an end match on this line, mark the line, but
-		 * continue looking for other starts after it. */
-		if (regexec(ink->end, line->data + index, 1,
-			&endmatch, (index == 0) ? 0 : REG_NOTBOL) == 0) {
-		    line->multidata[ink->id] = CSTARTENDHERE;
-		    index += endmatch.rm_eo;
-		    /* If both start and end are mere anchors, step ahead. */
-		    if (startmatch.rm_so == startmatch.rm_eo &&
-				endmatch.rm_so == endmatch.rm_eo) {
-			/* When at end-of-line, we're done. */
-			if (line->data[index] == '\0')
-			    break;
-			index = move_mbright(line->data, index);
-		    }
-		    continue;
+				/* If there is an end match on this line, mark the line, but
+				 * continue looking for other starts after it. */
+				if (regexec(ink->end, line->data + index, 1,
+						&endmatch, (index == 0) ? 0 : REG_NOTBOL) == 0) {
+					line->multidata[ink->id] = CSTARTENDHERE;
+					index += endmatch.rm_eo;
+					/* If both start and end are mere anchors, step ahead. */
+					if (startmatch.rm_so == startmatch.rm_eo &&
+								endmatch.rm_so == endmatch.rm_eo) {
+						/* When at end-of-line, we're done. */
+						if (line->data[index] == '\0')
+							break;
+						index = move_mbright(line->data, index);
+					}
+					continue;
+				}
+
+				/* Look for an end match on later lines. */
+				tailline = line->next;
+
+				while (tailline != NULL) {
+					if (regexec(ink->end, tailline->data, 1, &endmatch, 0) == 0)
+						break;
+					tailline = tailline->next;
+				}
+
+				if (tailline == NULL) {
+					line->multidata[ink->id] = CWOULDBE;
+					break;
+				}
+
+				/* We found it, we found it, la la la la la.  Mark all
+				 * the lines in between and the end properly. */
+				line->multidata[ink->id] = CENDAFTER;
+
+				for (line = line->next; line != tailline; line = line->next) {
+					alloc_multidata_if_needed(line);
+					line->multidata[ink->id] = CWHOLELINE;
+				}
+
+				alloc_multidata_if_needed(tailline);
+				tailline->multidata[ink->id] = CBEGINBEFORE;
+
+				/* Begin looking for a new start after the end match. */
+				index = endmatch.rm_eo;
+			}
 		}
-
-		/* Look for an end match on later lines. */
-		tailline = line->next;
-
-		while (tailline != NULL) {
-		    if (regexec(ink->end, tailline->data, 1, &endmatch, 0) == 0)
-			break;
-		    tailline = tailline->next;
-		}
-
-		if (tailline == NULL) {
-		    line->multidata[ink->id] = CWOULDBE;
-		    break;
-		}
-
-		/* We found it, we found it, la la la la la.  Mark all
-		 * the lines in between and the end properly. */
-		line->multidata[ink->id] = CENDAFTER;
-
-		for (line = line->next; line != tailline; line = line->next) {
-		    alloc_multidata_if_needed(line);
-		    line->multidata[ink->id] = CWHOLELINE;
-		}
-
-		alloc_multidata_if_needed(tailline);
-		tailline->multidata[ink->id] = CBEGINBEFORE;
-
-		/* Begin looking for a new start after the end match. */
-		index = endmatch.rm_eo;
-	    }
 	}
-    }
 }
 
-#endif /* !DISABLE_COLOR */
+#endif /* ENABLE_COLOR */

src/cut.c

@@ -23,21 +23,20 @@
 #include "proto.h"
 
 #include <string.h>
-#include <stdio.h>
 
 static bool keep_cutbuffer = FALSE;
-	/* Should we keep the contents of the cutbuffer? */
+		/* Should we keep the contents of the cutbuffer? */
 
 /* Indicate that we should no longer keep the contents of the cutbuffer. */
 void cutbuffer_reset(void)
 {
-    keep_cutbuffer = FALSE;
+	keep_cutbuffer = FALSE;
 }
 
 /* Return the status of cutbuffer preservation. */
 inline bool keeping_cutbuffer(void)
 {
-    return keep_cutbuffer;
+	return keep_cutbuffer;
 }
 
 /* If we aren't on the last line of the file, move all the text of the
@@ -47,13 +46,13 @@ inline bool keeping_cutbuffer(void)
  * current line. */
 void cut_line(void)
 {
-    if (openfile->current != openfile->filebot)
-	extract_buffer(&cutbuffer, &cutbottom, openfile->current, 0,
-		openfile->current->next, 0);
-    else
-	extract_buffer(&cutbuffer, &cutbottom, openfile->current, 0,
-		openfile->current, strlen(openfile->current->data));
-    openfile->placewewant = 0;
+	if (openfile->current != openfile->filebot)
+		extract_buffer(&cutbuffer, &cutbottom, openfile->current, 0,
+				openfile->current->next, 0);
+	else
+		extract_buffer(&cutbuffer, &cutbottom, openfile->current, 0,
+				openfile->current, strlen(openfile->current->data));
+	openfile->placewewant = 0;
 }
 
 #ifndef NANO_TINY
@@ -61,14 +60,14 @@ void cut_line(void)
  * current place we want to where the text used to start. */
 void cut_marked(bool *right_side_up)
 {
-    filestruct *top, *bot;
-    size_t top_x, bot_x;
+	filestruct *top, *bot;
+	size_t top_x, bot_x;
 
-    mark_order((const filestruct **)&top, &top_x,
-		(const filestruct **)&bot, &bot_x, right_side_up);
+	mark_order((const filestruct **)&top, &top_x,
+				(const filestruct **)&bot, &bot_x, right_side_up);
 
-    extract_buffer(&cutbuffer, &cutbottom, top, top_x, bot, bot_x);
-    openfile->placewewant = xplustabs();
+	extract_buffer(&cutbuffer, &cutbottom, top, top_x, bot, bot_x);
+	openfile->placewewant = xplustabs();
 }
 
 /* If we aren't at the end of the current line, move all the text from
@@ -79,32 +78,32 @@ void cut_marked(bool *right_side_up)
  * newline used to be. */
 void cut_to_eol(void)
 {
-    size_t data_len = strlen(openfile->current->data);
+	size_t data_len = strlen(openfile->current->data);
 
-    if (openfile->current_x < data_len)
-	/* If we're not at the end of the line, move all the text from
-	 * the current position up to it, not counting the newline at
-	 * the end, into the cutbuffer. */
-	extract_buffer(&cutbuffer, &cutbottom, openfile->current,
-		openfile->current_x, openfile->current, data_len);
-    else if (openfile->current != openfile->filebot) {
-	/* If we're at the end of the line, and it isn't the last line
-	 * of the file, move all the text from the current position up
-	 * to the beginning of the next line, i.e. the newline at the
-	 * end, into the cutbuffer. */
-	extract_buffer(&cutbuffer, &cutbottom, openfile->current,
-		openfile->current_x, openfile->current->next, 0);
-	openfile->placewewant = xplustabs();
-    }
+	if (openfile->current_x < data_len)
+		/* If we're not at the end of the line, move all the text from
+		 * the current position up to it, not counting the newline at
+		 * the end, into the cutbuffer. */
+		extract_buffer(&cutbuffer, &cutbottom, openfile->current,
+				openfile->current_x, openfile->current, data_len);
+	else if (openfile->current != openfile->filebot) {
+		/* If we're at the end of the line, and it isn't the last line
+		 * of the file, move all the text from the current position up
+		 * to the beginning of the next line, i.e. the newline at the
+		 * end, into the cutbuffer. */
+		extract_buffer(&cutbuffer, &cutbottom, openfile->current,
+				openfile->current_x, openfile->current->next, 0);
+		openfile->placewewant = xplustabs();
+	}
 }
 
 /* Move all the text from the current cursor position to the end of the
  * file into the cutbuffer. */
 void cut_to_eof(void)
 {
-    extract_buffer(&cutbuffer, &cutbottom,
-		openfile->current, openfile->current_x,
-		openfile->filebot, strlen(openfile->filebot->data));
+	extract_buffer(&cutbuffer, &cutbottom,
+				openfile->current, openfile->current_x,
+				openfile->filebot, strlen(openfile->filebot->data));
 }
 #endif /* !NANO_TINY */
 
@@ -115,89 +114,86 @@ void cut_to_eof(void)
 void do_cut_text(bool copy_text, bool cut_till_eof)
 {
 #ifndef NANO_TINY
-    filestruct *cb_save = NULL;
-	/* The current end of the cutbuffer, before we add text to it. */
-    size_t cb_save_len = 0;
-	/* The length of the string at the current end of the cutbuffer,
-	 * before we add text to it. */
-    bool old_no_newlines = ISSET(NO_NEWLINES);
-    bool right_side_up = TRUE;
-	/* There *is* no region, *or* it is marked forward. */
+	filestruct *cb_save = NULL;
+		/* The current end of the cutbuffer, before we add text to it. */
+	size_t cb_save_len = 0;
+		/* The length of the string at the current end of the cutbuffer,
+		 * before we add text to it. */
+	bool old_no_newlines = ISSET(NO_NEWLINES);
+	bool right_side_up = TRUE;
+		/* There *is* no region, *or* it is marked forward. */
 #endif
-    size_t was_totsize = openfile->totsize;
+	size_t was_totsize = openfile->totsize;
 
-    /* If a chain of cuts was broken, empty the cutbuffer. */
-    if (!keep_cutbuffer) {
-	free_filestruct(cutbuffer);
-	cutbuffer = NULL;
-#ifdef DEBUG
-	fprintf(stderr, "Blew away cutbuffer =)\n");
-#endif
-	/* Indicate that future cuts should add to the cutbuffer. */
-	keep_cutbuffer = TRUE;
-    }
+	/* If a chain of cuts was broken, empty the cutbuffer. */
+	if (!keep_cutbuffer) {
+		free_filestruct(cutbuffer);
+		cutbuffer = NULL;
+		/* Indicate that future cuts should add to the cutbuffer. */
+		keep_cutbuffer = TRUE;
+	}
 
 #ifndef NANO_TINY
-    if (copy_text) {
-	/* If the cutbuffer isn't empty, remember where it currently ends. */
-	if (cutbuffer != NULL) {
-	    cb_save = cutbottom;
-	    cb_save_len = strlen(cutbottom->data);
+	if (copy_text) {
+		/* If the cutbuffer isn't empty, remember where it currently ends. */
+		if (cutbuffer != NULL) {
+			cb_save = cutbottom;
+			cb_save_len = strlen(cutbottom->data);
+		}
+		/* Don't add a magicline when moving text to the cutbuffer. */
+		SET(NO_NEWLINES);
 	}
-	/* Don't add a magicline when moving text to the cutbuffer. */
-	SET(NO_NEWLINES);
-    }
 
-    if (cut_till_eof) {
-	/* Move all text up to the end of the file into the cutbuffer. */
-	cut_to_eof();
-    } else if (openfile->mark_set) {
-	/* Move the marked text to the cutbuffer, and turn the mark off. */
-	cut_marked(&right_side_up);
-	openfile->mark_set = FALSE;
-    } else if (ISSET(CUT_TO_END))
-	/* Move all text up to the end of the line into the cutbuffer. */
-	cut_to_eol();
-    else
+	if (cut_till_eof) {
+		/* Move all text up to the end of the file into the cutbuffer. */
+		cut_to_eof();
+	} else if (openfile->mark) {
+		/* Move the marked text to the cutbuffer, and turn the mark off. */
+		cut_marked(&right_side_up);
+		openfile->mark = NULL;
+	} else if (ISSET(CUT_FROM_CURSOR))
+		/* Move all text up to the end of the line into the cutbuffer. */
+		cut_to_eol();
+	else
 #endif
-	/* Move the entire line into the cutbuffer. */
-	cut_line();
+		/* Move the entire line into the cutbuffer. */
+		cut_line();
 
 #ifndef NANO_TINY
-    if (copy_text) {
-	/* Copy the text that is in the cutbuffer (starting at its saved end,
-	 * if there is one) back into the current buffer.  This effectively
-	 * uncuts the text we just cut. */
-	if (cutbuffer != NULL) {
-	    if (cb_save != NULL) {
-		cb_save->data += cb_save_len;
-		copy_from_buffer(cb_save);
-		cb_save->data -= cb_save_len;
-	    } else
-		copy_from_buffer(cutbuffer);
+	if (copy_text) {
+		/* Copy the text that is in the cutbuffer (starting at its saved end,
+		 * if there is one) back into the current buffer.  This effectively
+		 * uncuts the text we just cut. */
+		if (cutbuffer != NULL) {
+			if (cb_save != NULL) {
+				cb_save->data += cb_save_len;
+				copy_from_buffer(cb_save);
+				cb_save->data -= cb_save_len;
+			} else
+				copy_from_buffer(cutbuffer);
 
-	    /* If the copied region was marked forward, put the new desired
-	     * x position at its end; otherwise, leave it at its beginning. */
-	    if (right_side_up)
-		openfile->placewewant = xplustabs();
-	}
-	/* Restore the magicline behavior now that we're done fiddling. */
-	if (!old_no_newlines)
-	    UNSET(NO_NEWLINES);
-    } else
+			/* If the copied region was marked forward, put the new desired
+			 * x position at its end; otherwise, leave it at its beginning. */
+			if (right_side_up)
+				openfile->placewewant = xplustabs();
+		}
+		/* Restore the magicline behavior now that we're done fiddling. */
+		if (!old_no_newlines)
+			UNSET(NO_NEWLINES);
+	} else
 #endif /* !NANO_TINY */
-    /* Only set the modification flag if actually something was cut. */
-    if (openfile->totsize != was_totsize)
-	set_modified();
+	/* Only set the modification flag if actually something was cut. */
+	if (openfile->totsize != was_totsize)
+		set_modified();
 
-    refresh_needed = TRUE;
+	refresh_needed = TRUE;
 
-#ifndef DISABLE_COLOR
-    check_the_multis(openfile->current);
+#ifdef ENABLE_COLOR
+	check_the_multis(openfile->current);
 #endif
 
 #ifdef DEBUG
-    dump_filestruct(cutbuffer);
+	dump_filestruct(cutbuffer);
 #endif
 }
 
@@ -205,11 +201,11 @@ void do_cut_text(bool copy_text, bool cut_till_eof)
 void do_cut_text_void(void)
 {
 #ifndef NANO_TINY
-    add_undo(CUT);
+	add_undo(CUT);
 #endif
-    do_cut_text(FALSE, FALSE);
+	do_cut_text(FALSE, FALSE);
 #ifndef NANO_TINY
-    update_undo(CUT);
+	update_undo(CUT);
 #endif
 }
 
@@ -219,88 +215,79 @@ void do_cut_text_void(void)
  * was moved, blow away previous contents of the cutbuffer. */
 void do_copy_text(void)
 {
-    static struct filestruct *next_contiguous_line = NULL;
-    bool mark_set = openfile->mark_set;
+	static struct filestruct *next_contiguous_line = NULL;
+	bool mark_is_set = (openfile->mark != NULL);
 
-    /* Remember the current viewport and cursor position. */
-    ssize_t is_edittop_lineno = openfile->edittop->lineno;
-    size_t is_firstcolumn = openfile->firstcolumn;
-    ssize_t is_current_lineno = openfile->current->lineno;
-    size_t is_current_x = openfile->current_x;
+	/* Remember the current viewport and cursor position. */
+	ssize_t is_edittop_lineno = openfile->edittop->lineno;
+	size_t is_firstcolumn = openfile->firstcolumn;
+	ssize_t is_current_lineno = openfile->current->lineno;
+	size_t is_current_x = openfile->current_x;
 
-    if (mark_set || openfile->current != next_contiguous_line)
-	cutbuffer_reset();
+	if (mark_is_set || openfile->current != next_contiguous_line)
+		cutbuffer_reset();
 
-    do_cut_text(TRUE, FALSE);
+	do_cut_text(TRUE, FALSE);
 
-    /* If the mark was set, blow away the cutbuffer on the next copy. */
-    next_contiguous_line = (mark_set ? NULL : openfile->current);
+	/* If the mark was set, blow away the cutbuffer on the next copy. */
+	next_contiguous_line = (mark_is_set ? NULL : openfile->current);
 
-    if (mark_set) {
-	/* Restore the viewport and cursor position. */
-	openfile->edittop = fsfromline(is_edittop_lineno);
-	openfile->firstcolumn = is_firstcolumn;
-	openfile->current = fsfromline(is_current_lineno);
-	openfile->current_x = is_current_x;
-    }
+	/* If the mark was set, restore the viewport and cursor position. */
+	if (mark_is_set) {
+		openfile->edittop = fsfromline(is_edittop_lineno);
+		openfile->firstcolumn = is_firstcolumn;
+		openfile->current = fsfromline(is_current_lineno);
+		openfile->current_x = is_current_x;
+	}
 }
 
 /* Cut from the current cursor position to the end of the file. */
 void do_cut_till_eof(void)
 {
-    add_undo(CUT_EOF);
-    do_cut_text(FALSE, TRUE);
-    update_undo(CUT_EOF);
+	add_undo(CUT_TO_EOF);
+	do_cut_text(FALSE, TRUE);
+	update_undo(CUT_TO_EOF);
 }
 #endif /* !NANO_TINY */
 
 /* Copy text from the cutbuffer into the current buffer. */
 void do_uncut_text(void)
 {
-    ssize_t was_lineno = openfile->current->lineno;
-	/* The line number where we started the paste. */
-    size_t was_leftedge = 0;
-	/* The leftedge where we started the paste. */
+	ssize_t was_lineno = openfile->current->lineno;
+		/* The line number where we started the paste. */
+	size_t was_leftedge = 0;
+		/* The leftedge where we started the paste. */
 
-    /* If the cutbuffer is empty, there is nothing to do. */
-    if (cutbuffer == NULL)
-	return;
+	/* If the cutbuffer is empty, there is nothing to do. */
+	if (cutbuffer == NULL)
+		return;
 
 #ifndef NANO_TINY
-    add_undo(PASTE);
+	add_undo(PASTE);
 
-    if (ISSET(SOFTWRAP))
-	was_leftedge = (xplustabs() / editwincols) * editwincols;
+	if (ISSET(SOFTWRAP))
+		was_leftedge = leftedge_for(xplustabs(), openfile->current);
 #endif
 
-    /* Add a copy of the text in the cutbuffer to the current buffer
-     * at the current cursor position. */
-    copy_from_buffer(cutbuffer);
+	/* Add a copy of the text in the cutbuffer to the current buffer
+	 * at the current cursor position. */
+	copy_from_buffer(cutbuffer);
 
 #ifndef NANO_TINY
-    update_undo(PASTE);
+	update_undo(PASTE);
 #endif
 
-    /* If we pasted less than a screenful, don't center the cursor. */
-    if (less_than_a_screenful(was_lineno, was_leftedge))
-	focusing = FALSE;
+	/* If we pasted less than a screenful, don't center the cursor. */
+	if (less_than_a_screenful(was_lineno, was_leftedge))
+		focusing = FALSE;
 
-    /* Set the desired x position to where the pasted text ends. */
-    openfile->placewewant = xplustabs();
+	/* Set the desired x position to where the pasted text ends. */
+	openfile->placewewant = xplustabs();
 
-    /* Mark the file as modified. */
-    set_modified();
+	set_modified();
+	refresh_needed = TRUE;
 
-    /* Update current_y to account for the inserted lines. */
-    place_the_cursor(TRUE);
-
-    refresh_needed = TRUE;
-
-#ifndef DISABLE_COLOR
-    check_the_multis(openfile->current);
-#endif
-
-#ifdef DEBUG
-    dump_filestruct_reverse();
+#ifdef ENABLE_COLOR
+	check_the_multis(openfile->current);
 #endif
 }

src/history.c

@@ -0,0 +1,616 @@
+/**************************************************************************
+ *   history.c  --  This file is part of GNU nano.                        *
+ *                                                                        *
+ *   Copyright (C) 2003-2011, 2013-2017 Free Software Foundation, Inc.    *
+ *   Copyright (C) 2016-2017 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    *
+ *   by the Free Software Foundation, either version 3 of the License,    *
+ *   or (at your option) any later version.                               *
+ *                                                                        *
+ *   GNU nano is distributed in the hope that it will be useful,          *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty          *
+ *   of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.              *
+ *   See the GNU General Public License for more details.                 *
+ *                                                                        *
+ *   You should have received a copy of the GNU General Public License    *
+ *   along with this program.  If not, see http://www.gnu.org/licenses/.  *
+ *                                                                        *
+ **************************************************************************/
+
+#include "proto.h"
+
+#include <errno.h>
+#include <string.h>
+
+#ifdef ENABLE_HISTORIES
+
+#ifndef SEARCH_HISTORY
+#define SEARCH_HISTORY "search_history"
+#endif
+
+#ifndef POSITION_HISTORY
+#define POSITION_HISTORY "filepos_history"
+#endif
+
+static bool history_changed = FALSE;
+		/* Whether any of the history lists has changed. */
+static struct stat stat_of_positions_file;
+		/* The last-obtained stat information of the positions file. */
+static char *poshistname = NULL;
+		/* The name of the positions-history file. */
+
+/* Initialize the lists of historical search and replace strings
+ * and the list of historical executed commands. */
+void history_init(void)
+{
+	search_history = make_new_node(NULL);
+	search_history->data = mallocstrcpy(NULL, "");
+	searchtop = search_history;
+	searchbot = search_history;
+
+	replace_history = make_new_node(NULL);
+	replace_history->data = mallocstrcpy(NULL, "");
+	replacetop = replace_history;
+	replacebot = replace_history;
+
+	execute_history = make_new_node(NULL);
+	execute_history->data = mallocstrcpy(NULL, "");
+	executetop = execute_history;
+	executebot = execute_history;
+}
+
+/* Set the current position in the given history list to the bottom. */
+void history_reset(const filestruct *list)
+{
+	if (list == search_history)
+		search_history = searchbot;
+	else if (list == replace_history)
+		replace_history = replacebot;
+	else if (list == 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. */
+filestruct *find_history(const filestruct *start, const filestruct *end,
+		const char *text, size_t len)
+{
+	const filestruct *item;
+
+	for (item = start; item != end->prev && item != NULL; item = item->prev) {
+		if (strncmp(item->data, text, len) == 0)
+			return (filestruct *)item;
+	}
+
+	return NULL;
+}
+
+/* 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(filestruct **item, const char *text)
+{
+	filestruct **htop = NULL, **hbot = NULL, *thesame;
+
+	if (*item == search_history) {
+		htop = &searchtop;
+		hbot = &searchbot;
+	} else if (*item == replace_history) {
+		htop = &replacetop;
+		hbot = &replacebot;
+	} else if (*item == execute_history) {
+		htop = &executetop;
+		hbot = &executebot;
+	}
+
+	/* See if the string is already in the history. */
+	thesame = find_history(*hbot, *htop, text, HIGHEST_POSITIVE);
+
+	/* If an identical string was found, delete that item. */
+	if (thesame != NULL) {
+		filestruct *after = thesame->next;
+
+		/* If the string is at the head of the list, move the head. */
+		if (thesame == *htop)
+			*htop = after;
+
+		unlink_node(thesame);
+		renumber(after);
+	}
+
+	/* If the history is full, delete the oldest item (the one at the
+	 * head of the list), to make room for a new item at the end. */
+	if ((*hbot)->lineno == MAX_SEARCH_HISTORY + 1) {
+		filestruct *oldest = *htop;
+
+		*htop = (*htop)->next;
+		unlink_node(oldest);
+		renumber(*htop);
+	}
+
+	/* Store the fresh string in the last item, then create a new item. */
+	(*hbot)->data = mallocstrcpy((*hbot)->data, text);
+	splice_node(*hbot, make_new_node(*hbot));
+	*hbot = (*hbot)->next;
+	(*hbot)->data = mallocstrcpy(NULL, "");
+
+	/* Indicate that the history needs to be saved on exit. */
+	history_changed = TRUE;
+
+	/* Set the current position in the list to the bottom. */
+	*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(filestruct **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(filestruct **h)
+{
+	if ((*h)->next == NULL)
+		return NULL;
+
+	*h = (*h)->next;
+
+	return (*h)->data;
+}
+
+/* More placeholders. */
+void get_history_newer_void(void)
+{
+	;
+}
+void get_history_older_void(void)
+{
+	;
+}
+
+#ifdef ENABLE_TABCOMP
+/* Move h to the next string that's a tab completion of the string s,
+ * looking at only the first len characters of s, and return that
+ * string.  If there isn't one, or if len is 0, don't move h and return
+ * s. */
+char *get_history_completion(filestruct **h, char *s, size_t len)
+{
+	if (len > 0) {
+		filestruct *htop = NULL, *hbot = NULL, *p;
+
+		if (*h == search_history) {
+			htop = searchtop;
+			hbot = searchbot;
+		} else if (*h == replace_history) {
+			htop = replacetop;
+			hbot = replacebot;
+		} else if (*h == execute_history) {
+			htop = executetop;
+			hbot = executebot;
+		}
+
+		/* Search the history list from the current position to the top
+		 * for a match of len characters.  Skip over an exact match. */
+		p = find_history((*h)->prev, htop, s, len);
+
+		while (p != NULL && strcmp(p->data, s) == 0)
+			p = find_history(p->prev, htop, s, len);
+
+		if (p != NULL) {
+			*h = p;
+			return mallocstrcpy(s, (*h)->data);
+		}
+
+		/* Search the history list from the bottom to the current position
+		 * for a match of len characters.  Skip over an exact match. */
+		p = find_history(hbot, *h, s, len);
+
+		while (p != NULL && strcmp(p->data, s) == 0)
+			p = find_history(p->prev, *h, s, len);
+
+		if (p != NULL) {
+			*h = p;
+			return mallocstrcpy(s, (*h)->data);
+		}
+	}
+
+	/* If we're here, we didn't find a match, we didn't find an inexact
+	 * match, or len is 0.  Return s. */
+	return (char *)s;
+}
+#endif /* ENSABLE_TABCOMP */
+
+void history_error(const char *msg, ...)
+{
+	va_list ap;
+
+	va_start(ap, msg);
+	vfprintf(stderr, _(msg), ap);
+	va_end(ap);
+
+	fprintf(stderr, _("\nPress Enter to continue\n"));
+	while (getchar() != '\n')
+		;
+}
+
+/* Check whether we have or could make a directory for history files. */
+bool have_statedir(void)
+{
+	struct stat dirstat;
+	const char *xdgdatadir;
+
+	get_homedir();
+
+	if (homedir != NULL) {
+		statedir = concatenate(homedir, "/.nano/");
+
+		if (stat(statedir, &dirstat) == 0 && S_ISDIR(dirstat.st_mode)) {
+			poshistname = concatenate(statedir, POSITION_HISTORY);
+			return TRUE;
+		}
+	}
+
+	free(statedir);
+	xdgdatadir = getenv("XDG_DATA_HOME");
+
+	if (homedir == NULL && xdgdatadir == NULL)
+		return FALSE;
+
+	if (xdgdatadir != NULL)
+		statedir = concatenate(xdgdatadir, "/nano/");
+	else
+		statedir = concatenate(homedir, "/.local/share/nano/");
+
+	if (stat(statedir, &dirstat) == -1) {
+		if (xdgdatadir == NULL) {
+			char *statepath = concatenate(homedir, "/.local");
+			mkdir(statepath, S_IRWXU | S_IRWXG | S_IRWXO);
+			free(statepath);
+			statepath = concatenate(homedir, "/.local/share");
+			mkdir(statepath, S_IRWXU);
+			free(statepath);
+		}
+		if (mkdir(statedir, S_IRWXU) == -1) {
+			history_error(N_("Unable to create directory %s: %s\n"
+								"It is required for saving/loading "
+								"search history or cursor positions.\n"),
+								statedir, strerror(errno));
+			return FALSE;
+		}
+	} else if (!S_ISDIR(dirstat.st_mode)) {
+		history_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"),
+								statedir);
+		return FALSE;
+	}
+
+	poshistname = concatenate(statedir, POSITION_HISTORY);
+	return TRUE;
+}
+
+/* Load the histories for Search and Replace and Execute Command. */
+void load_history(void)
+{
+	char *histname = concatenate(statedir, SEARCH_HISTORY);
+	FILE *hisfile = fopen(histname, "rb");
+
+	if (hisfile == NULL) {
+		if (errno != ENOENT) {
+			/* When reading failed, don't save history when we quit. */
+			UNSET(HISTORYLOG);
+			history_error(N_("Error reading %s: %s"), histname,
+						strerror(errno));
+		}
+	} else {
+		/* Load the three history lists -- first search, then replace,
+		 * then execute -- from oldest entry to newest.  Between two
+		 * lists there is an empty line. */
+		filestruct **history = &search_history;
+		char *line = NULL;
+		size_t buf_len = 0;
+		ssize_t read;
+
+		while ((read = getline(&line, &buf_len, hisfile)) > 0) {
+			line[--read] = '\0';
+			if (read > 0) {
+				/* Encode any embedded NUL as 0x0A. */
+				unsunder(line, read);
+				update_history(history, line);
+			} else if (history == &search_history)
+				history = &replace_history;
+			else
+				history = &execute_history;
+		}
+
+		fclose(hisfile);
+		free(line);
+	}
+
+	/* After reading them in, set the status of the lists to "unchanged". */
+	history_changed = FALSE;
+
+	free(histname);
+}
+
+/* Write the lines of a history list, starting at head, from oldest to newest,
+ * to the given file.  Return TRUE if writing succeeded, and FALSE otherwise. */
+bool write_list(const filestruct *head, FILE *hisfile)
+{
+	const filestruct *item;
+
+	for (item = head; item != NULL; item = item->next) {
+		size_t length = strlen(item->data);
+
+		/* Decode 0x0A bytes as embedded NULs. */
+		sunder(item->data);
+
+		if (fwrite(item->data, sizeof(char), length, hisfile) < length)
+			return FALSE;
+		if (putc('\n', hisfile) == EOF)
+			return FALSE;
+	}
+
+	return TRUE;
+}
+
+/* Save the histories for Search and Replace and Execute Command. */
+void save_history(void)
+{
+	char *histname;
+	FILE *hisfile;
+
+	/* If the histories are unchanged, don't bother saving them. */
+	if (!history_changed)
+		return;
+
+	histname = concatenate(statedir, SEARCH_HISTORY);
+	hisfile = fopen(histname, "wb");
+
+	if (hisfile == NULL)
+		fprintf(stderr, _("Error writing %s: %s\n"), histname,
+						strerror(errno));
+	else {
+		/* Don't allow others to read or write the history file. */
+		chmod(histname, S_IRUSR | S_IWUSR);
+
+		if (!write_list(searchtop, hisfile) ||
+						!write_list(replacetop, hisfile) ||
+						!write_list(executetop, hisfile))
+			fprintf(stderr, _("Error writing %s: %s\n"), histname,
+						strerror(errno));
+
+		fclose(hisfile);
+	}
+
+	free(histname);
+}
+
+/* Load the recorded cursor positions for files that were edited. */
+void load_poshistory(void)
+{
+	FILE *hisfile = fopen(poshistname, "rb");
+
+	if (hisfile == NULL) {
+		if (errno != ENOENT) {
+			/* When reading failed, don't save history when we quit. */
+			UNSET(POS_HISTORY);
+			history_error(N_("Error reading %s: %s"), poshistname, strerror(errno));
+		}
+	} else {
+		char *line = NULL, *lineptr, *xptr;
+		size_t buf_len = 0;
+		ssize_t read, count = 0;
+		poshiststruct *record_ptr = NULL, *newrecord;
+
+		/* Read and parse each line, and store the extracted data. */
+		while ((read = getline(&line, &buf_len, hisfile)) > 5) {
+			/* Decode nulls as embedded newlines. */
+			unsunder(line, read);
+
+			/* Find where the x index and line number are in the line. */
+			xptr = revstrstr(line, " ", line + read - 3);
+			if (xptr == NULL)
+				continue;
+			lineptr = revstrstr(line, " ", xptr - 2);
+			if (lineptr == NULL)
+				continue;
+
+			/* Now separate the three elements of the line. */
+			*(xptr++) = '\0';
+			*(lineptr++) = '\0';
+
+			/* Create a new position record. */
+			newrecord = (poshiststruct *)nmalloc(sizeof(poshiststruct));
+			newrecord->filename = mallocstrcpy(NULL, line);
+			newrecord->lineno = atoi(lineptr);
+			newrecord->xno = atoi(xptr);
+			newrecord->next = NULL;
+
+			/* Add the record to the list. */
+			if (position_history == NULL)
+				position_history = newrecord;
+			else
+				record_ptr->next = newrecord;
+
+			record_ptr = newrecord;
+
+			/* Impose a limit, so the file will not grow indefinitely. */
+			if (++count > 200) {
+				poshiststruct *drop_record = position_history;
+
+				position_history = position_history->next;
+
+				free(drop_record->filename);
+				free(drop_record);
+			}
+		}
+		fclose(hisfile);
+		free(line);
+
+		stat(poshistname, &stat_of_positions_file);
+	}
+}
+
+/* Save the recorded cursor positions for files that were edited. */
+void save_poshistory(void)
+{
+	poshiststruct *posptr;
+	FILE *hisfile = fopen(poshistname, "wb");
+
+	if (hisfile == NULL)
+		fprintf(stderr, _("Error writing %s: %s\n"), poshistname, strerror(errno));
+	else {
+		/* Don't allow others to read or write the history file. */
+		chmod(poshistname, S_IRUSR | S_IWUSR);
+
+		for (posptr = position_history; posptr != NULL; posptr = posptr->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 = charalloc(strlen(posptr->filename) + 44);
+			sprintf(path_and_place, "%s %zd %zd\n",
+						posptr->filename, posptr->lineno, posptr->xno);
+			length = strlen(path_and_place);
+
+			/* Encode newlines in filenames as nulls. */
+			sunder(path_and_place);
+			/* Restore the terminating newline. */
+			path_and_place[length - 1] = '\n';
+
+			if (fwrite(path_and_place, sizeof(char), length, hisfile) < length)
+				fprintf(stderr, _("Error writing %s: %s\n"),
+										poshistname, strerror(errno));
+			free(path_and_place);
+		}
+		fclose(hisfile);
+
+		stat(poshistname, &stat_of_positions_file);
+	}
+}
+
+/* Reload the position history file if it has been modified since last load. */
+void reload_positions_if_needed(void)
+{
+	struct stat newstat;
+
+	stat(poshistname, &newstat);
+
+	if (newstat.st_mtime != stat_of_positions_file.st_mtime) {
+		poshiststruct *ptr, *nextone;
+
+		for (ptr = position_history; ptr != NULL; ptr = nextone) {
+			nextone = ptr->next;
+			free(ptr->filename);
+			free(ptr);
+		}
+		position_history = NULL;
+
+		load_poshistory();
+	}
+}
+
+/* Update the recorded last file positions, given a filename, a line
+ * and a column.  If no entry is found, add a new one at the end. */
+void update_poshistory(char *filename, ssize_t lineno, ssize_t xpos)
+{
+	poshiststruct *posptr, *theone, *posprev = NULL;
+	char *fullpath = get_full_path(filename);
+
+	if (fullpath == NULL || fullpath[strlen(fullpath) - 1] == '/' || inhelp) {
+		free(fullpath);
+		return;
+	}
+
+	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))
+			break;
+		posprev = posptr;
+	}
+
+	/* Don't record files that have the default cursor position. */
+	if (lineno == 1 && xpos == 1) {
+		if (posptr != NULL) {
+			if (posprev == NULL)
+				position_history = posptr->next;
+			else
+				posprev->next = posptr->next;
+			free(posptr->filename);
+			free(posptr);
+			save_poshistory();
+		}
+		free(fullpath);
+		return;
+	}
+
+	theone = posptr;
+
+	/* 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. */
+	if (theone == NULL) {
+		theone = (poshiststruct *)nmalloc(sizeof(poshiststruct));
+		theone->filename = mallocstrcpy(NULL, fullpath);
+		if (position_history == NULL)
+			position_history = theone;
+		else
+			posprev->next = theone;
+	} else if (posptr->next != NULL) {
+		if (posprev == NULL)
+			position_history = posptr->next;
+		else
+			posprev->next = posptr->next;
+		while (posptr->next != NULL)
+			posptr = posptr->next;
+		posptr->next = theone;
+	}
+
+	/* Store the last cursor position. */
+	theone->lineno = lineno;
+	theone->xno = xpos;
+	theone->next = NULL;
+
+	free(fullpath);
+
+	save_poshistory();
+}
+
+/* Check whether the given file matches an existing entry in the recorded
+ * last file positions.  If not, return FALSE.  If yes, return TRUE and
+ * set line and column to the retrieved values. */
+bool has_old_position(const char *file, ssize_t *line, ssize_t *column)
+{
+	poshiststruct *posptr = position_history;
+	char *fullpath = get_full_path(file);
+
+	if (fullpath == NULL)
+		return FALSE;
+
+	reload_positions_if_needed();
+
+	while (posptr != NULL && strcmp(posptr->filename, fullpath) != 0)
+		posptr = posptr->next;
+
+	free(fullpath);
+
+	if (posptr == NULL)
+		return FALSE;
+
+	*line = posptr->lineno;
+	*column = posptr->xno;
+	return TRUE;
+}
+#endif /* ENABLE_HISTORIES */

src/nano.h

@@ -2,7 +2,7 @@
  *   nano.h  --  This file is part of GNU nano.                           *
  *                                                                        *
  *   Copyright (C) 1999-2011, 2013-2017 Free Software Foundation, Inc.    *
- *   Copyright (C) 2014, 2015, 2016 Benno Schulenberg                     *
+ *   Copyright (C) 2014-2017 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    *
@@ -48,8 +48,6 @@
 #include <sys/param.h>
 #endif
 
-#include <stdarg.h>
-
 /* Suppress warnings for __attribute__((warn_unused_result)). */
 #define IGNORE_CALL_RESULT(call) do { if (call) {} } while(0)
 
@@ -113,7 +111,7 @@
 #endif
 #define gettext_noop(string) (string)
 #define N_(string) gettext_noop(string)
-	/* Mark a string that will be sent to gettext() later. */
+		/* Mark a string that will be sent to gettext() later. */
 
 #include <stddef.h>
 #include <stdlib.h>
@@ -130,418 +128,436 @@
 #undef ENABLE_MOUSE
 #endif
 
-#if defined(DISABLE_WRAPPING) && defined(DISABLE_JUSTIFY)
-#define DISABLE_WRAPJUSTIFY 1
+#if defined(ENABLE_WRAPPING) || defined(ENABLE_JUSTIFY)
+#define ENABLED_WRAPORJUSTIFY 1
 #endif
 
+#define BACKWARD FALSE
+#define FORWARD TRUE
+
+#define BLIND FALSE
+#define VISIBLE TRUE
+
+#define JUSTFIND  0
+#define REPLACING 1
+#define INREGION  2
+
 /* Enumeration types. */
 typedef enum {
-    NIX_FILE, DOS_FILE, MAC_FILE
+	NIX_FILE, DOS_FILE, MAC_FILE
 } file_format;
 
 typedef enum {
-    HUSH, MILD, ALERT
+	HUSH, MILD, ALERT
 } message_type;
 
 typedef enum {
-    OVERWRITE, APPEND, PREPEND
+	OVERWRITE, APPEND, PREPEND
 } kind_of_writing_type;
 
 typedef enum {
-    SOFTMARK, HARDMARK
+	SOFTMARK, HARDMARK
 } mark_type;
 
 typedef enum {
-    UPWARD, DOWNWARD
-} scroll_dir;
-
-typedef enum {
-    CENTERING, FLOWING, STATIONARY
+	CENTERING, FLOWING, STATIONARY
 } update_type;
 
 typedef enum {
-    ADD, DEL, BACK, CUT, CUT_EOF, REPLACE,
-#ifndef DISABLE_WRAPPING
-    SPLIT_BEGIN, SPLIT_END,
+	ADD, DEL, BACK, CUT, CUT_TO_EOF, REPLACE,
+#ifdef ENABLE_WRAPPING
+	SPLIT_BEGIN, SPLIT_END,
 #endif
-#ifndef DISABLE_COMMENT
-    COMMENT, UNCOMMENT, PREFLIGHT,
+	INDENT, UNINDENT,
+#ifdef ENABLE_COMMENT
+	COMMENT, UNCOMMENT, PREFLIGHT,
 #endif
-    JOIN, PASTE, INSERT, ENTER, OTHER
+	JOIN, PASTE, INSERT, ENTER, OTHER
 } undo_type;
 
 /* Structure types. */
-#ifndef DISABLE_COLOR
+#ifdef ENABLE_COLOR
 typedef struct colortype {
-    short fg;
-	/* This syntax's foreground color. */
-    short bg;
-	/* This syntax's background color. */
-    bool bright;
-	/* Is this color A_BOLD? */
-    int pairnum;
-	/* The color pair number used for this foreground color and
-	 * background color. */
-    int attributes;
-	/* Pair number and brightness composed into ready-to-use attributes. */
-    int rex_flags;
-	/* The regex compilation flags (with or without REG_ICASE). */
-    char *start_regex;
-	/* The start (or all) of the regex string. */
-    regex_t *start;
-	/* The compiled start (or all) of the regex string. */
-    char *end_regex;
-	/* The end (if any) of the regex string. */
-    regex_t *end;
-	/* The compiled end (if any) of the regex string. */
-    struct colortype *next;
-	/* Next set of colors. */
-    int id;
-	/* Basic id for assigning to lines later. */
+	short fg;
+		/* This syntax's foreground color. */
+	short bg;
+		/* This syntax's background color. */
+	bool bright;
+		/* Is this color A_BOLD? */
+	int pairnum;
+		/* The color pair number used for this foreground color and
+		 * background color. */
+	int attributes;
+		/* Pair number and brightness composed into ready-to-use attributes. */
+	int rex_flags;
+		/* The regex compilation flags (with or without REG_ICASE). */
+	char *start_regex;
+		/* The start (or all) of the regex string. */
+	regex_t *start;
+		/* The compiled start (or all) of the regex string. */
+	char *end_regex;
+		/* The end (if any) of the regex string. */
+	regex_t *end;
+		/* The compiled end (if any) of the regex string. */
+	struct colortype *next;
+		/* Next set of colors. */
+	int id;
+		/* Basic id for assigning to lines later. */
 } colortype;
 
 typedef struct regexlisttype {
-    char *full_regex;
-	/* A regex string to match things that imply a certain syntax. */
-    struct regexlisttype *next;
-	/* The next regex. */
+	char *full_regex;
+		/* A regex string to match things that imply a certain syntax. */
+	struct regexlisttype *next;
+		/* The next regex. */
 } regexlisttype;
 
 typedef struct syntaxtype {
-    char *name;
-	/* The name of this syntax. */
-    regexlisttype *extensions;
-	/* The list of extensions that this syntax applies to. */
-    regexlisttype *headers;
-	/* The list of headerlines that this syntax applies to. */
-    regexlisttype *magics;
-	/* The list of libmagic results that this syntax applies to. */
-    char *linter;
-	/* The command with which to lint this type of file. */
-    char *formatter;
-        /* The formatting command (for programming languages mainly). */
-    char *comment;
-	/* The line comment prefix (and postfix) for this type of file. */
-    colortype *color;
-	/* The colors and their regexes used in this syntax. */
-    int nmultis;
-	/* How many multiline regex strings this syntax has. */
-    struct syntaxtype *next;
-	/* Next syntax. */
+	char *name;
+		/* The name of this syntax. */
+	regexlisttype *extensions;
+		/* The list of extensions that this syntax applies to. */
+	regexlisttype *headers;
+		/* The list of headerlines that this syntax applies to. */
+	regexlisttype *magics;
+		/* The list of libmagic results that this syntax applies to. */
+	char *linter;
+		/* The command with which to lint this type of file. */
+	char *formatter;
+		/* The formatting command (for programming languages mainly). */
+#ifdef ENABLE_COMMENT
+	char *comment;
+		/* The line comment prefix (and postfix) for this type of file. */
+#endif
+	colortype *color;
+		/* The colors and their regexes used in this syntax. */
+	int nmultis;
+		/* How many multiline regex strings this syntax has. */
+	struct syntaxtype *next;
+		/* Next syntax. */
 } syntaxtype;
 
 typedef struct lintstruct {
-    ssize_t lineno;
-	/* Line number of the error. */
-    ssize_t colno;
-	/* Column # of the error. */
-    char *msg;
-	/* Error message text. */
-    char *filename;
-	/* Filename. */
-    struct lintstruct *next;
-	/* Next error. */
-    struct lintstruct *prev;
-	/* Previous error. */
+	ssize_t lineno;
+		/* Line number of the error. */
+	ssize_t colno;
+		/* Column # of the error. */
+	char *msg;
+		/* Error message text. */
+	char *filename;
+		/* Filename. */
+	struct lintstruct *next;
+		/* Next error. */
+	struct lintstruct *prev;
+		/* Previous error. */
 } lintstruct;
 
 /* Flags that indicate how a multiline regex applies to a line. */
-#define CNONE		(1<<1)
-	/* Yay, regex doesn't apply to this line at all! */
-#define CBEGINBEFORE	(1<<2)
-	/* Regex starts on an earlier line, ends on this one. */
-#define CENDAFTER	(1<<3)
-	/* Regex starts on this line and ends on a later one. */
-#define CWHOLELINE	(1<<4)
-	/* Whole line engulfed by the regex, start < me, end > me. */
-#define CSTARTENDHERE	(1<<5)
-	/* Regex starts and ends within this line. */
-#define CWOULDBE	(1<<6)
-	/* An unpaired start match on or before this line. */
-#endif /* !DISABLE_COLOR */
+#define CNONE           (1<<1)
+		/* Yay, regex doesn't apply to this line at all! */
+#define CBEGINBEFORE    (1<<2)
+		/* Regex starts on an earlier line, ends on this one. */
+#define CENDAFTER       (1<<3)
+		/* Regex starts on this line and ends on a later one. */
+#define CWHOLELINE      (1<<4)
+		/* Whole line engulfed by the regex, start < me, end > me. */
+#define CSTARTENDHERE   (1<<5)
+		/* Regex starts and ends within this line. */
+#define CWOULDBE        (1<<6)
+		/* An unpaired start match on or before this line. */
+#endif /* ENABLE_COLOR */
 
 /* More structure types. */
 typedef struct filestruct {
-    char *data;
-	/* The text of this line. */
-    ssize_t lineno;
-	/* The number of this line. */
-    struct filestruct *next;
-	/* Next node. */
-    struct filestruct *prev;
-	/* Previous node. */
-#ifndef DISABLE_COLOR
-    short *multidata;
-	/* Array of which multi-line regexes apply to this line. */
+	char *data;
+		/* The text of this line. */
+	ssize_t lineno;
+		/* The number of this line. */
+	struct filestruct *next;
+		/* Next node. */
+	struct filestruct *prev;
+		/* Previous node. */
+#ifdef ENABLE_COLOR
+	short *multidata;
+		/* Array of which multi-line regexes apply to this line. */
 #endif
 } filestruct;
 
 typedef struct partition {
-    filestruct *fileage;
-	/* The top line of this portion of the file. */
-    filestruct *top_prev;
-	/* The line before the top line of this portion of the file. */
-    char *top_data;
-	/* The text before the beginning of the top line of this portion
-	 * of the file. */
-    filestruct *filebot;
-	/* The bottom line of this portion of the file. */
-    filestruct *bot_next;
-	/* The line after the bottom line of this portion of the
-	 * file. */
-    char *bot_data;
-	/* The text after the end of the bottom line of this portion of
-	 * the file. */
+	filestruct *fileage;
+		/* The top line of this portion of the file. */
+	filestruct *top_prev;
+		/* The line before the top line of this portion of the file. */
+	char *top_data;
+		/* The text before the beginning of the top line of this portion
+		 * of the file. */
+	filestruct *filebot;
+		/* The bottom line of this portion of the file. */
+	filestruct *bot_next;
+		/* The line after the bottom line of this portion of the
+		 * file. */
+	char *bot_data;
+		/* The text after the end of the bottom line of this portion of
+		 * the file. */
 } partition;
 
 #ifndef NANO_TINY
 typedef struct undo_group {
-    ssize_t top_line;
-	/* First line of group. */
-    ssize_t bottom_line;
-	/* Last line of group. */
-    struct undo_group *next;
+	ssize_t top_line;
+		/* First line of group. */
+	ssize_t bottom_line;
+		/* Last line of group. */
+	char **indentations;
+		/* String data used to restore the affected lines; one per line. */
+	struct undo_group *next;
 } undo_group;
 
 typedef struct undo {
-    ssize_t lineno;
-    undo_type type;
-	/* What type of undo this was. */
-    size_t begin;
-	/* Where did this action begin or end. */
-    char *strdata;
-	/* String type data we will use for copying the affected line back. */
-    size_t wassize;
-	/* The file size before the action. */
-    size_t newsize;
-	/* The file size after the action. */
-    int xflags;
-	/* Some flag data we need. */
-    undo_group *grouping;
-	/* Undo info specific to groups of lines. */
+	ssize_t lineno;
+	undo_type type;
+		/* What type of undo this was. */
+	size_t begin;
+		/* Where did this action begin or end. */
+	char *strdata;
+		/* String type data we will use for copying the affected line back. */
+	size_t wassize;
+		/* The file size before the action. */
+	size_t newsize;
+		/* The file size after the action. */
+	int xflags;
+		/* Some flag data we need. */
+	undo_group *grouping;
+		/* Undo info specific to groups of lines. */
 
-    /* Cut-specific stuff we need. */
-    filestruct *cutbuffer;
-	/* Copy of the cutbuffer. */
-    filestruct *cutbottom;
-	/* Copy of cutbottom. */
-    ssize_t mark_begin_lineno;
-	/* Mostly the line number of the current line; sometimes something else. */
-    size_t mark_begin_x;
-	/* The x position corresponding to the above line number. */
-    struct undo *next;
-	/* A pointer to the undo item of the preceding action. */
+	/* Cut-specific stuff we need. */
+	filestruct *cutbuffer;
+		/* Copy of the cutbuffer. */
+	filestruct *cutbottom;
+		/* Copy of cutbottom. */
+	ssize_t mark_begin_lineno;
+		/* Mostly the line number of the current line; sometimes something else. */
+	size_t mark_begin_x;
+		/* The x position corresponding to the above line number. */
+	struct undo *next;
+		/* A pointer to the undo item of the preceding action. */
 } undo;
 #endif /* !NANO_TINY */
 
-#ifndef DISABLE_HISTORIES
+#ifdef ENABLE_HISTORIES
 typedef struct poshiststruct {
-    char *filename;
-	/* The file. */
-    ssize_t lineno;
-	/* Line number we left off on. */
-    ssize_t xno;
-	/* x position in the file we left off on. */
-    struct poshiststruct *next;
+	char *filename;
+		/* The file. */
+	ssize_t lineno;
+		/* Line number we left off on. */
+	ssize_t xno;
+		/* x position in the file we left off on. */
+	struct poshiststruct *next;
 } poshiststruct;
 #endif
 
 typedef struct openfilestruct {
-    char *filename;
-	/* The file's name. */
-    filestruct *fileage;
-	/* The file's first line. */
-    filestruct *filebot;
-	/* The file's last line. */
-    filestruct *edittop;
-	/* The current top of the edit window for this file. */
-    filestruct *current;
-	/* The current line for this file. */
-    size_t totsize;
-	/* The file's total number of characters. */
-    size_t firstcolumn;
-	/* The starting column of the top line of the edit window.
-	 * When not in softwrap mode, it's always zero. */
-    size_t current_x;
-	/* The file's x-coordinate position. */
-    size_t placewewant;
-	/* The file's x position we would like. */
-    ssize_t current_y;
-	/* The file's y-coordinate position. */
-    bool modified;
-	/* Whether the file has been modified. */
-    struct stat *current_stat;
-	/* The file's current stat information. */
+	char *filename;
+		/* The file's name. */
+	filestruct *fileage;
+		/* The file's first line. */
+	filestruct *filebot;
+		/* The file's last line. */
+	filestruct *edittop;
+		/* The current top of the edit window for this file. */
+	filestruct *current;
+		/* The current line for this file. */
+	size_t totsize;
+		/* The file's total number of characters. */
+	size_t firstcolumn;
+		/* The starting column of the top line of the edit window.
+		 * When not in softwrap mode, it's always zero. */
+	size_t current_x;
+		/* The file's x-coordinate position. */
+	size_t placewewant;
+		/* The file's x position we would like. */
+	ssize_t current_y;
+		/* The file's y-coordinate position. */
+	bool modified;
+		/* Whether the file has been modified. */
+	struct stat *current_stat;
+		/* The file's current stat information. */
 #ifndef NANO_TINY
-    bool mark_set;
-	/* Whether the mark is on in this file. */
-    filestruct *mark_begin;
-	/* The file's line where the mark is, if any. */
-    size_t mark_begin_x;
-	/* The file's mark's x-coordinate position, if any. */
-    mark_type kind_of_mark;
-	/* Whether this is a soft or a hard mark. */
-    file_format fmt;
-	/* The file's format. */
-    undo *undotop;
-	/* The top of the undo list. */
-    undo *current_undo;
-	/* The current (i.e. next) level of undo. */
-    undo_type last_action;
-	/* The type of the last action the user performed. */
-    char *lock_filename;
-	/* The path of the lockfile, if we created one. */
+	filestruct *mark;
+		/* The line in the file where the mark is set; NULL if not set. */
+	size_t mark_x;
+		/* The mark's x position in the above line. */
+	mark_type kind_of_mark;
+		/* Whether it is a soft (with Shift) or a hard mark. */
+	file_format fmt;
+		/* The file's format -- Unix or DOS or Mac or mixed. */
+	undo *undotop;
+		/* The top of the undo list. */
+	undo *current_undo;
+		/* The current (i.e. next) level of undo. */
+	undo *last_saved;
+		/* The undo item at which the file was last saved. */
+	undo_type last_action;
+		/* The type of the last action the user performed. */
+	char *lock_filename;
+		/* The path of the lockfile, if we created one. */
 #endif
-#ifndef DISABLE_COLOR
-    syntaxtype *syntax;
-	/* The  syntax struct for this file, if any. */
-    colortype *colorstrings;
-	/* The file's associated colors. */
+#ifdef ENABLE_COLOR
+	syntaxtype *syntax;
+		/* The  syntax struct for this file, if any. */
+	colortype *colorstrings;
+		/* The file's associated colors. */
 #endif
-    struct openfilestruct *next;
-	/* The next open file, if any. */
-    struct openfilestruct *prev;
-	/* The preceding open file, if any. */
+	struct openfilestruct *next;
+		/* The next open file, if any. */
+	struct openfilestruct *prev;
+		/* The preceding open file, if any. */
 } openfilestruct;
 
 #ifdef ENABLE_NANORC
 typedef struct rcoption {
-    const char *name;
-	/* The name of the rcfile option. */
-    long flag;
-	/* The flag associated with it, if any. */
+	const char *name;
+		/* The name of the rcfile option. */
+	long flag;
+		/* The flag associated with it, if any. */
 } rcoption;
 #endif
 
 typedef struct sc {
-    const char *keystr;
-	/* The string that describes a keystroke, like "^C" or "M-R". */
-    bool meta;
-	/* Whether this is a Meta keystroke. */
-    int keycode;
-	/* The integer that, together with meta, identifies the keystroke. */
-    int menus;
-	/* Which menus this applies to. */
-    void (*scfunc)(void);
-	/* The function we're going to run. */
+	const char *keystr;
+		/* The string that describes a keystroke, like "^C" or "M-R". */
+	bool meta;
+		/* Whether this is a Meta keystroke. */
+	int keycode;
+		/* The integer that, together with meta, identifies the keystroke. */
+	int menus;
+		/* Which menus this applies to. */
+	void (*scfunc)(void);
+		/* The function we're going to run. */
 #ifndef NANO_TINY
-    int toggle;
-	/* If a toggle, what we're toggling. */
-    int ordinal;
-	/* The how-manieth toggle this is, in order to be able to
-	 * keep them in sequence. */
+	int toggle;
+		/* If a toggle, what we're toggling. */
+	int ordinal;
+		/* The how-manieth toggle this is, in order to be able to
+		 * keep them in sequence. */
 #endif
-    struct sc *next;
-	/* Next in the list. */
+	struct sc *next;
+		/* Next in the list. */
 } sc;
 
 typedef struct subnfunc {
-    void (*scfunc)(void);
-	/* The actual function to call. */
-    int menus;
-	/* In what menus this function applies. */
-    const char *desc;
-	/* The function's short description, for example "Where Is". */
+	void (*scfunc)(void);
+		/* The actual function to call. */
+	int menus;
+		/* In what menus this function applies. */
+	const char *desc;
+		/* The function's short description, for example "Where Is". */
 #ifdef ENABLE_HELP
-    const char *help;
-	/* The help-screen text for this function. */
-    bool blank_after;
-	/* Whether there should be a blank line after the help text
-	 * for this function. */
+	const char *help;
+		/* The help-screen text for this function. */
+	bool blank_after;
+		/* Whether there should be a blank line after the help text
+		 * for this function. */
 #endif
-    bool viewok;
-	/* Is this function allowed when in view mode? */
-    long toggle;
-	/* If this is a toggle, which toggle to affect. */
-    struct subnfunc *next;
-	/* Next item in the list. */
+	bool viewok;
+		/* Is this function allowed when in view mode? */
+	long toggle;
+		/* If this is a toggle, which toggle to affect. */
+	struct subnfunc *next;
+		/* Next item in the list. */
 } subnfunc;
 
 #ifdef ENABLE_WORDCOMPLETION
 typedef struct completion_word {
-    char *word;
-    struct completion_word *next;
+	char *word;
+	struct completion_word *next;
 } completion_word;
 #endif
 
 /* The elements of the interface that can be colored differently. */
 enum
 {
-    TITLE_BAR = 0,
-    LINE_NUMBER,
-    STATUS_BAR,
-    KEY_COMBO,
-    FUNCTION_TAG,
-    NUMBER_OF_ELEMENTS
+	TITLE_BAR = 0,
+	LINE_NUMBER,
+	SELECTED_TEXT,
+	STATUS_BAR,
+	KEY_COMBO,
+	FUNCTION_TAG,
+	NUMBER_OF_ELEMENTS
 };
 
 /* Enumeration used in the flags array.  See the definition of FLAGMASK. */
 enum
 {
-    DONTUSE,
-    CASE_SENSITIVE,
-    CONSTANT_SHOW,
-    NO_HELP,
-    SUSPEND,
-    NO_WRAP,
-    AUTOINDENT,
-    VIEW_MODE,
-    USE_MOUSE,
-    USE_REGEXP,
-    TEMP_FILE,
-    CUT_TO_END,
-    BACKWARDS_SEARCH,
-    MULTIBUFFER,
-    SMOOTH_SCROLL,
-    REBIND_DELETE,
-    REBIND_KEYPAD,
-    NO_CONVERT,
-    BACKUP_FILE,
-    INSECURE_BACKUP,
-    NO_COLOR_SYNTAX,
-    PRESERVE,
-    HISTORYLOG,
-    RESTRICTED,
-    SMART_HOME,
-    WHITESPACE_DISPLAY,
-    MORE_SPACE,
-    TABS_TO_SPACES,
-    QUICK_BLANK,
-    WORD_BOUNDS,
-    NO_NEWLINES,
-    BOLD_TEXT,
-    QUIET,
-    SOFTWRAP,
-    POS_HISTORY,
-    LOCKING,
-    NOREAD_MODE,
-    MAKE_IT_UNIX,
-    JUSTIFY_TRIM,
-    SHOW_CURSOR,
-    LINE_NUMBERS,
-    NO_PAUSES
+	DONTUSE,
+	CASE_SENSITIVE,
+	CONSTANT_SHOW,
+	NO_HELP,
+	SUSPEND,
+	NO_WRAP,
+	AUTOINDENT,
+	VIEW_MODE,
+	USE_MOUSE,
+	USE_REGEXP,
+	TEMP_FILE,
+	CUT_FROM_CURSOR,
+	BACKWARDS_SEARCH,
+	MULTIBUFFER,
+	SMOOTH_SCROLL,
+	REBIND_DELETE,
+	REBIND_KEYPAD,
+	NO_CONVERT,
+	BACKUP_FILE,
+	INSECURE_BACKUP,
+	NO_COLOR_SYNTAX,
+	PRESERVE,
+	HISTORYLOG,
+	RESTRICTED,
+	SMART_HOME,
+	WHITESPACE_DISPLAY,
+	MORE_SPACE,
+	TABS_TO_SPACES,
+	QUICK_BLANK,
+	WORD_BOUNDS,
+	NO_NEWLINES,
+	BOLD_TEXT,
+	QUIET,
+	SOFTWRAP,
+	POS_HISTORY,
+	LOCKING,
+	NOREAD_MODE,
+	MAKE_IT_UNIX,
+	TRIM_BLANKS,
+	SHOW_CURSOR,
+	LINE_NUMBERS,
+	NO_PAUSES,
+	AT_BLANKS
 };
 
 /* Flags for the menus in which a given function should be present. */
-#define MMAIN			(1<<0)
-#define MWHEREIS		(1<<1)
-#define MREPLACE		(1<<2)
-#define MREPLACEWITH		(1<<3)
-#define MGOTOLINE		(1<<4)
-#define MWRITEFILE		(1<<5)
-#define MINSERTFILE		(1<<6)
-#define MEXTCMD			(1<<7)
-#define MHELP			(1<<8)
-#define MSPELL			(1<<9)
-#define MBROWSER		(1<<10)
-#define MWHEREISFILE		(1<<11)
-#define MGOTODIR		(1<<12)
-#define MYESNO			(1<<13)
-#define MLINTER			(1<<14)
-#define MFINDINHELP		(1<<15)
+#define MMAIN           (1<<0)
+#define MWHEREIS        (1<<1)
+#define MREPLACE        (1<<2)
+#define MREPLACEWITH    (1<<3)
+#define MGOTOLINE       (1<<4)
+#define MWRITEFILE      (1<<5)
+#define MINSERTFILE     (1<<6)
+#define MEXTCMD         (1<<7)
+#define MHELP           (1<<8)
+#define MSPELL          (1<<9)
+#define MBROWSER        (1<<10)
+#define MWHEREISFILE    (1<<11)
+#define MGOTODIR        (1<<12)
+#define MYESNO          (1<<13)
+#define MLINTER         (1<<14)
+#define MFINDINHELP     (1<<15)
 /* This is an abbreviation for all menus except Help and YesNo. */
 #define MMOST  (MMAIN|MWHEREIS|MREPLACE|MREPLACEWITH|MGOTOLINE|MWRITEFILE|MINSERTFILE|\
-		MEXTCMD|MBROWSER|MWHEREISFILE|MGOTODIR|MFINDINHELP|MSPELL|MLINTER)
+                MEXTCMD|MBROWSER|MWHEREISFILE|MGOTODIR|MFINDINHELP|MSPELL|MLINTER)
+#ifndef NANO_TINY
+#define MSOME  MMOST
+#else
+#define MSOME  MMAIN|MBROWSER
+#endif
 
 /* Basic control codes. */
 #define TAB_CODE  0x09
@@ -553,33 +569,48 @@ enum
 #define CONTROL_RIGHT 0x402
 #define CONTROL_UP 0x403
 #define CONTROL_DOWN 0x404
-#define CONTROL_HOME 0x411
-#define CONTROL_END 0x412
-#define SHIFT_CONTROL_LEFT 0x405
-#define SHIFT_CONTROL_RIGHT 0x406
-#define SHIFT_CONTROL_UP 0x407
-#define SHIFT_CONTROL_DOWN 0x408
-#define SHIFT_CONTROL_HOME 0x413
-#define SHIFT_CONTROL_END 0x414
-#define SHIFT_ALT_LEFT 0x409
-#define SHIFT_ALT_RIGHT 0x40a
-#define SHIFT_ALT_UP 0x40b
-#define SHIFT_ALT_DOWN 0x40c
-#define SHIFT_PAGEUP 0x40d
-#define SHIFT_PAGEDOWN 0x40e
-#define SHIFT_HOME 0x40f
-#define SHIFT_END 0x410
+#define CONTROL_HOME 0x405
+#define CONTROL_END 0x406
+#define SHIFT_CONTROL_LEFT 0x411
+#define SHIFT_CONTROL_RIGHT 0x412
+#define SHIFT_CONTROL_UP 0x413
+#define SHIFT_CONTROL_DOWN 0x414
+#define SHIFT_CONTROL_HOME 0x415
+#define SHIFT_CONTROL_END 0x416
+#define ALT_LEFT 0x421
+#define ALT_RIGHT 0x422
+#define ALT_UP 0x423
+#define ALT_DOWN 0x424
+#define SHIFT_ALT_LEFT 0x431
+#define SHIFT_ALT_RIGHT 0x432
+#define SHIFT_ALT_UP 0x433
+#define SHIFT_ALT_DOWN 0x434
+#define SHIFT_HOME 0x455
+#define SHIFT_END 0x456
+#define SHIFT_PAGEUP 0x457
+#define SHIFT_PAGEDOWN 0x458
+#define SHIFT_TAB 0x45F
+
+#ifdef USE_SLANG
+#ifdef ENABLE_UTF8
+#define KEY_BAD 0xFF  /* Clipped error code. */
+#endif
+#define KEY_FLUSH 0x91  /* User-definable control code. */
+#else
+#define KEY_FLUSH KEY_F0  /* Nonexistent function key. */
+#endif
 
 #ifndef NANO_TINY
 /* An imaginary key for when we get a SIGWINCH (window resize). */
 #define KEY_WINCH -2
 
 /* Some extra flags for the undo function. */
-#define WAS_FINAL_BACKSPACE	(1<<1)
-#define WAS_WHOLE_LINE		(1<<2)
+#define WAS_FINAL_BACKSPACE   (1<<1)
+#define WAS_WHOLE_LINE        (1<<2)
+#define WAS_FINAL_LINE        (1<<3)
 /* The flags for the mark need to be the highest. */
-#define MARK_WAS_SET		(1<<3)
-#define WAS_MARKED_FORWARD	(1<<4)
+#define MARK_WAS_SET          (1<<4)
+#define WAS_MARKED_FORWARD    (1<<5)
 #endif /* !NANO_TINY */
 
 /* The maximum number of entries displayed in the main shortcut list. */
@@ -592,6 +623,9 @@ enum
 /* The default width of a tab in spaces. */
 #define WIDTH_OF_TAB 8
 
+/* The default comment character when a syntax does not specify any. */
+#define GENERAL_COMMENT_CHARACTER "#"
+
 /* The maximum number of search/replace history strings saved, not
  * counting the blank lines at their ends. */
 #define MAX_SEARCH_HISTORY 100

src/proto.h

@@ -43,9 +43,7 @@ extern bool as_an_at;
 extern int margin;
 extern int editwincols;
 
-#ifndef DISABLE_COLOR
-extern bool have_palette;
-#endif
+extern bool suppress_cursorpos;
 
 extern message_type lastmessage;
 
@@ -54,6 +52,10 @@ extern filestruct *pletion_line;
 extern bool inhelp;
 extern char *title;
 
+extern bool more_than_one;
+
+extern bool also_the_last;
+
 extern int didfind;
 
 extern int controlleft;
@@ -69,13 +71,17 @@ extern int shiftcontrolup;
 extern int shiftcontroldown;
 extern int shiftcontrolhome;
 extern int shiftcontrolend;
+extern int altleft;
+extern int altright;
+extern int altup;
+extern int altdown;
 extern int shiftaltleft;
 extern int shiftaltright;
 extern int shiftaltup;
 extern int shiftaltdown;
 #endif
 
-#ifndef DISABLE_WRAPJUSTIFY
+#ifdef ENABLED_WRAPORJUSTIFY
 extern ssize_t fill;
 extern ssize_t wrap_at;
 #endif
@@ -94,12 +100,10 @@ extern filestruct *cutbuffer;
 extern filestruct *cutbottom;
 extern partition *filepart;
 extern openfilestruct *openfile;
+extern openfilestruct *firstfile;
 
 #ifndef NANO_TINY
 extern char *matchbrackets;
-#endif
-
-#ifndef NANO_TINY
 extern char *whitespace;
 extern int whitespace_len[2];
 #endif
@@ -107,7 +111,7 @@ extern int whitespace_len[2];
 extern const char *exit_tag;
 extern const char *close_tag;
 extern const char *uncut_tag;
-#ifndef DISABLE_JUSTIFY
+#ifdef ENABLE_JUSTIFY
 extern const char *unjust_tag;
 extern char *punct;
 extern char *brackets;
@@ -115,12 +119,10 @@ extern char *quotestr;
 extern regex_t quotereg;
 extern int quoterc;
 extern char *quoteerr;
-#endif /* !DISABLE_JUSTIFY */
+#endif
 
 extern char *word_chars;
 
-extern bool nodelay_mode;
-
 extern char *answer;
 
 extern ssize_t tabsize;
@@ -130,18 +132,18 @@ extern char *backup_dir;
 extern const char *locking_prefix;
 extern const char *locking_suffix;
 #endif
-#ifndef DISABLE_OPERATINGDIR
+#ifdef ENABLE_OPERATINGDIR
 extern char *operating_dir;
-extern char *full_operating_dir;
 #endif
 
-#ifndef DISABLE_SPELLER
+#ifdef ENABLE_SPELLER
 extern char *alt_speller;
 #endif
 
-#ifndef DISABLE_COLOR
+#ifdef ENABLE_COLOR
 extern syntaxtype *syntaxes;
 extern char *syntaxstr;
+extern bool have_palette;
 #endif
 
 extern bool refresh_needed;
@@ -152,13 +154,16 @@ extern subnfunc *allfuncs;
 extern subnfunc *exitfunc;
 extern subnfunc *uncutfunc;
 
-#ifndef DISABLE_HISTORIES
 extern filestruct *search_history;
-extern filestruct *searchage;
-extern filestruct *searchbot;
 extern filestruct *replace_history;
-extern filestruct *replaceage;
+extern filestruct *execute_history;
+#ifdef ENABLE_HISTORIES
+extern filestruct *searchtop;
+extern filestruct *searchbot;
+extern filestruct *replacetop;
 extern filestruct *replacebot;
+extern filestruct *executetop;
+extern filestruct *executebot;
 extern poshiststruct *position_history;
 #endif
 
@@ -166,12 +171,14 @@ extern regex_t search_regexp;
 extern regmatch_t regmatches[10];
 
 extern int hilite_attribute;
-#ifndef DISABLE_COLOR
+#ifdef ENABLE_COLOR
 extern char* specified_color_combo[NUMBER_OF_ELEMENTS];
 #endif
 extern int interface_color_pair[NUMBER_OF_ELEMENTS];
 
 extern char *homedir;
+extern char *statedir;
+extern char *rcfile_with_errors;
 
 typedef void (*functionptrtype)(void);
 
@@ -183,9 +190,9 @@ functionptrtype parse_browser_input(int *kbinput);
 void browser_refresh(void);
 void browser_select_dirname(const char *needle);
 void do_filesearch(void);
-void do_fileresearch(void);
-void do_first_file(void);
-void do_last_file(void);
+void do_fileresearch(bool forwards);
+void to_first_file(void);
+void to_last_file(void);
 char *strip_last_component(const char *path);
 #endif
 
@@ -211,13 +218,11 @@ size_t move_mbright(const char *buf, size_t pos);
 int mbstrcasecmp(const char *s1, const char *s2);
 int mbstrncasecmp(const char *s1, const char *s2, size_t n);
 char *mbstrcasestr(const char *haystack, const char *needle);
-char *revstrstr(const char *haystack, const char *needle,
-	const char *index);
-char *mbrevstrcasestr(const char *haystack, const char *needle,
-	const char *index);
+char *revstrstr(const char *haystack, const char *needle, const char *index);
+char *mbrevstrcasestr(const char *haystack, const char *needle, const char *index);
 size_t mbstrlen(const char *s);
 size_t mbstrnlen(const char *s, size_t maxlen);
-#if !defined(NANO_TINY) || !defined(DISABLE_JUSTIFY)
+#if !defined(NANO_TINY) || defined(ENABLE_JUSTIFY)
 char *mbstrchr(const char *s, const char *c);
 #endif
 #ifndef NANO_TINY
@@ -225,7 +230,7 @@ char *mbstrpbrk(const char *s, const char *accept);
 char *revstrpbrk(const char *head, const char *accept, const char *index);
 char *mbrevstrpbrk(const char *head, const char *accept, const char *index);
 #endif
-#if defined(ENABLE_NANORC) && (!defined(NANO_TINY) || !defined(DISABLE_JUSTIFY))
+#if defined(ENABLE_NANORC) && (!defined(NANO_TINY) || defined(ENABLE_JUSTIFY))
 bool has_blank_mbchars(const char *s);
 #endif
 #ifdef ENABLE_UTF8
@@ -236,7 +241,7 @@ bool is_valid_mbstring(const char *s);
 #endif
 
 /* Most functions in color.c. */
-#ifndef DISABLE_COLOR
+#ifdef ENABLE_COLOR
 void set_colorpairs(void);
 void color_init(void);
 void color_update(void);
@@ -261,30 +266,31 @@ void do_uncut_text(void);
 
 /* Most functions in files.c. */
 void initialize_buffer_text(void);
+void set_modified(void);
 bool open_buffer(const char *filename, bool undoable);
-#ifndef DISABLE_SPELLER
+#ifdef ENABLE_SPELLER
 void replace_buffer(const char *filename);
 #ifndef NANO_TINY
 void replace_marked_buffer(const char *filename, filestruct *top, size_t top_x,
-	filestruct *bot, size_t bot_x);
+		filestruct *bot, size_t bot_x);
 #endif
 #endif
 void prepare_for_display(void);
 #ifdef ENABLE_MULTIBUFFER
-void switch_to_prev_buffer_void(void);
-void switch_to_next_buffer_void(void);
+void switch_to_prev_buffer(void);
+void switch_to_next_buffer(void);
 bool close_buffer(void);
 #endif
 void read_file(FILE *f, int fd, const char *filename, bool undoable,
-		bool checkwritable);
+				bool checkwritable);
 int open_file(const char *filename, bool newfie, bool quiet, FILE **f);
 char *get_next_filename(const char *name, const char *suffix);
 void do_insertfile_void(void);
 char *get_full_path(const char *origpath);
 char *safe_tempfile(FILE **f);
-#ifndef DISABLE_OPERATINGDIR
+#ifdef ENABLE_OPERATINGDIR
 void init_operating_dir(void);
-bool check_operating_dir(const char *currpath, bool allow_tabcomp);
+bool outside_of_confinement(const char *currpath, bool allow_tabcomp);
 #endif
 #ifndef NANO_TINY
 void init_backup_dir(void);
@@ -293,34 +299,21 @@ int write_lockfile(const char *lockfilename, const char *origfilename, bool modi
 #endif
 int copy_file(FILE *inn, FILE *out, bool close_out);
 bool write_file(const char *name, FILE *f_open, bool tmp,
-	kind_of_writing_type method, bool nonamechange);
+		kind_of_writing_type method, bool fullbuffer);
 #ifndef NANO_TINY
 bool write_marked_file(const char *name, FILE *f_open, bool tmp,
-	kind_of_writing_type method);
+		kind_of_writing_type method);
 #endif
-int do_writeout(bool exiting);
+int do_writeout(bool exiting, bool withprompt);
 void do_writeout_void(void);
-#ifndef NANO_TINY
 void do_savefile(void);
-#endif
 char *real_dir_from_tilde(const char *buf);
 #if defined(ENABLE_TABCOMP) || defined(ENABLE_BROWSER)
 int diralphasort(const void *va, const void *vb);
-void free_chararray(char **array, size_t len);
 #endif
 #ifdef ENABLE_TABCOMP
 char *input_tab(char *buf, bool allow_files, size_t *place,
-	bool *lastwastab, void (*refresh_func)(void), bool *listed);
-#endif
-const char *tail(const char *path);
-#ifndef DISABLE_HISTORIES
-void load_history(void);
-void save_history(void);
-int check_dotnano(void);
-void load_poshistory(void);
-void save_poshistory(void);
-void update_poshistory(char *filename, ssize_t lineno, ssize_t xpos);
-bool has_old_position(const char *file, ssize_t *line, ssize_t *column);
+		bool *lastwastab, void (*refresh_func)(void), bool *listed);
 #endif
 
 /* Some functions in global.c. */
@@ -328,10 +321,11 @@ size_t length_of_list(int menu);
 const sc *first_sc_for(int menu, void (*func)(void));
 int the_code_for(void (*func)(void), int defaultval);
 functionptrtype func_from_key(int *kbinput);
+int keycode_from_string(const char *keystring);
 void assign_keyinfo(sc *s, const char *keystring, const int keycode);
 void print_sclist(void);
 void shortcut_init(void);
-#ifndef DISABLE_COLOR
+#ifdef ENABLE_COLOR
 void set_lint_or_format_shortcuts(void);
 void set_spell_shortcuts(void);
 #endif
@@ -353,30 +347,48 @@ size_t help_line_len(const char *ptr);
 #endif
 void do_help_void(void);
 
-/* All functions in move.c. */
-void do_first_line(void);
-void do_last_line(void);
+/* Most functions in history.c. */
+#ifdef ENABLE_HISTORIES
+void history_init(void);
+void history_reset(const filestruct *h);
+void update_history(filestruct **h, const char *s);
+char *get_history_older(filestruct **h);
+char *get_history_newer(filestruct **h);
+void get_history_older_void(void);
+void get_history_newer_void(void);
+#ifdef ENABLE_TABCOMP
+char *get_history_completion(filestruct **h, char *s, size_t len);
+#endif
+bool have_statedir(void);
+void load_history(void);
+void save_history(void);
+void load_poshistory(void);
+void update_poshistory(char *filename, ssize_t lineno, ssize_t xpos);
+bool has_old_position(const char *file, ssize_t *line, ssize_t *column);
+#endif
+
+/* Most functions in move.c. */
+void to_first_line(void);
+void to_last_line(void);
 void do_page_up(void);
 void do_page_down(void);
-#ifndef DISABLE_JUSTIFY
+#ifdef ENABLE_JUSTIFY
 void do_para_begin(bool update_screen);
-void do_para_begin_void(void);
 void do_para_end(bool update_screen);
+void do_para_begin_void(void);
 void do_para_end_void(void);
 #endif
 void do_prev_block(void);
 void do_next_block(void);
 void do_prev_word(bool allow_punct, bool update_screen);
-void do_prev_word_void(void);
 bool do_next_word(bool allow_punct, bool update_screen);
+void do_prev_word_void(void);
 void do_next_word_void(void);
-void do_home(bool be_clever);
-void do_home_void(void);
-void do_end(bool be_clever);
-void do_end_void(void);
+void do_home(void);
+void do_end(void);
 void do_up(bool scroll_only);
-void do_up_void(void);
 void do_down(bool scroll_only);
+void do_up_void(void);
 void do_down_void(void);
 #ifndef NANO_TINY
 void do_scroll_up(void);
@@ -394,10 +406,10 @@ filestruct *copy_filestruct(const filestruct *src);
 void free_filestruct(filestruct *src);
 void renumber(filestruct *fileptr);
 partition *partition_filestruct(filestruct *top, size_t top_x,
-	filestruct *bot, size_t bot_x);
+		filestruct *bot, size_t bot_x);
 void unpartition_filestruct(partition **p);
 void extract_buffer(filestruct **file_top, filestruct **file_bot,
-	filestruct *top, size_t top_x, filestruct *bot, size_t bot_x);
+		filestruct *top, size_t top_x, filestruct *bot, size_t bot_x);
 void ingraft_buffer(filestruct *somebuffer);
 void copy_from_buffer(filestruct *somebuffer);
 openfilestruct *make_new_opennode(void);
@@ -439,8 +451,7 @@ void do_output(char *output, size_t output_len, bool allow_cntrls);
 #ifdef ENABLE_MOUSE
 int do_statusbar_mouse(void);
 #endif
-void do_statusbar_output(int *the_input, size_t input_len,
-	bool filtering);
+void do_statusbar_output(int *the_input, size_t input_len, bool filtering);
 void do_statusbar_home(void);
 void do_statusbar_end(void);
 void do_statusbar_left(void);
@@ -448,6 +459,7 @@ void do_statusbar_right(void);
 void do_statusbar_backspace(void);
 void do_statusbar_delete(void);
 void do_statusbar_cut_text(void);
+void do_statusbar_uncut_text(void);
 #ifndef NANO_TINY
 void do_statusbar_prev_word(void);
 void do_statusbar_next_word(void);
@@ -458,16 +470,13 @@ size_t get_statusbar_page_start(size_t start_col, size_t column);
 void reinit_statusbar_x(void);
 void update_the_statusbar(void);
 int do_prompt(bool allow_tabs, bool allow_files,
-	int menu, const char *curranswer,
-#ifndef DISABLE_HISTORIES
-	filestruct **history_list,
-#endif
-	void (*refresh_func)(void), const char *msg, ...);
+		int menu, const char *curranswer, filestruct **history_list,
+		void (*refresh_func)(void), const char *msg, ...);
 int do_yesno_prompt(bool all, const char *msg);
 
 /* Most functions in rcfile.c. */
 #ifdef ENABLE_NANORC
-#ifndef DISABLE_COLOR
+#ifdef ENABLE_COLOR
 bool parse_color_names(char *combostr, short *fg, short *bg, bool *bright);
 void grab_and_store(const char *kind, char *ptr, regexlisttype **storage);
 #endif
@@ -478,9 +487,11 @@ void do_rcfiles(void);
 /* Most functions in search.c. */
 void not_found_msg(const char *str);
 void search_replace_abort(void);
-int findnextstr(const char *needle, bool whole_word_only, bool have_region,
-	size_t *match_len, bool skipone, const filestruct *begin, size_t begin_x);
+int findnextstr(const char *needle, bool whole_word_only, int modus,
+		size_t *match_len, bool skipone, const filestruct *begin, size_t begin_x);
 void do_search(void);
+void do_search_forward(void);
+void do_search_backward(void);
 #ifndef NANO_TINY
 void do_findprevious(void);
 void do_findnext(void);
@@ -488,27 +499,14 @@ void do_findnext(void);
 void do_research(void);
 void go_looking(void);
 ssize_t do_replace_loop(const char *needle, bool whole_word_only,
-	const filestruct *real_current, size_t *real_current_x);
+		const filestruct *real_current, size_t *real_current_x);
 void do_replace(void);
 void goto_line_posx(ssize_t line, size_t pos_x);
 void do_gotolinecolumn(ssize_t line, ssize_t column, bool use_answer,
-	bool interactive);
+		bool interactive);
 void do_gotolinecolumn_void(void);
 #ifndef NANO_TINY
 void do_find_bracket(void);
-#ifdef ENABLE_TABCOMP
-char *get_history_completion(filestruct **h, char *s, size_t len);
-#endif
-#endif
-#ifndef DISABLE_HISTORIES
-bool history_has_changed(void);
-void history_init(void);
-void history_reset(const filestruct *h);
-void update_history(filestruct **h, const char *s);
-char *get_history_older(filestruct **h);
-char *get_history_newer(filestruct **h);
-void get_history_older_void(void);
-void get_history_newer_void(void);
 #endif
 
 /* Most functions in text.c. */
@@ -523,8 +521,7 @@ void do_cut_next_word(void);
 #endif
 void do_tab(void);
 #ifndef NANO_TINY
-void do_indent(ssize_t cols);
-void do_indent_void(void);
+void do_indent(void);
 void do_unindent(void);
 #endif
 bool white_string(const char *s);
@@ -538,24 +535,22 @@ void do_enter(void);
 #ifndef NANO_TINY
 RETSIGTYPE cancel_command(int signal);
 bool execute_command(const char *command);
-void discard_until(const undo *thisitem, openfilestruct *thefile);
+void discard_until(const undo *thisitem, openfilestruct *thefile, bool keep);
 void add_undo(undo_type action);
-#ifndef DISABLE_COMMENT
-void update_comment_undo(ssize_t lineno);
-#endif
+void update_multiline_undo(ssize_t lineno, char *indentation);
 void update_undo(undo_type action);
 #endif /* !NANO_TINY */
-#ifndef DISABLE_WRAPPING
+#ifdef ENABLE_WRAPPING
 void wrap_reset(void);
 bool do_wrap(filestruct *line);
 #endif
-#if defined(ENABLE_HELP) || !defined(DISABLE_WRAPJUSTIFY)
+#if defined(ENABLE_HELP) || defined(ENABLED_WRAPORJUSTIFY)
 ssize_t break_line(const char *line, ssize_t goal, bool snap_at_nl);
 #endif
-#if !defined(NANO_TINY) || !defined(DISABLE_JUSTIFY)
+#if !defined(NANO_TINY) || defined(ENABLE_JUSTIFY)
 size_t indent_length(const char *line);
 #endif
-#ifndef DISABLE_JUSTIFY
+#ifdef ENABLE_JUSTIFY
 void justify_format(filestruct *paragraph, size_t skip);
 bool begpar(const filestruct *const foo);
 bool inpar(const filestruct *const foo);
@@ -563,10 +558,10 @@ void do_justify(bool full_justify);
 void do_justify_void(void);
 void do_full_justify(void);
 #endif
-#ifndef DISABLE_SPELLER
+#ifdef ENABLE_SPELLER
 void do_spell(void);
 #endif
-#ifndef DISABLE_COLOR
+#ifdef ENABLE_COLOR
 void do_linter(void);
 void do_formatter(void);
 #endif
@@ -578,6 +573,8 @@ void complete_a_word(void);
 
 /* All functions in utils.c. */
 void get_homedir(void);
+const char *tail(const char *path);
+char *concatenate(const char *path, const char *name);
 #ifdef ENABLE_LINENUMBERS
 int digits(ssize_t n);
 #endif
@@ -587,12 +584,15 @@ void snuggly_fit(char **str);
 void null_at(char **data, size_t index);
 void unsunder(char *str, size_t true_len);
 void sunder(char *str);
+#if !defined(ENABLE_TINY) || defined(ENABLE_TABCOMP) || defined(ENABLE_BROWSER)
+void free_chararray(char **array, size_t len);
+#endif
 const char *fixbounds(const char *r);
-#ifndef DISABLE_SPELLER
+#ifdef ENABLE_SPELLER
 bool is_separate_word(size_t position, size_t length, const char *buf);
 #endif
 const char *strstrwrapper(const char *haystack, const char *needle,
-	const char *start);
+		const char *start);
 void nperror(const char *s);
 void *nmalloc(size_t howmuch);
 void *nrealloc(void *ptr, size_t howmuch);
@@ -601,16 +601,17 @@ char *mallocstrcpy(char *dest, const char *src);
 char *free_and_assign(char *dest, char *src);
 size_t get_page_start(size_t column);
 size_t xplustabs(void);
-size_t actual_x(const char *s, size_t column);
-size_t strnlenpt(const char *s, size_t maxlen);
-size_t strlenpt(const char *s);
+size_t actual_x(const char *text, size_t column);
+size_t strnlenpt(const char *text, size_t maxlen);
+size_t strlenpt(const char *text);
 void new_magicline(void);
 #if !defined(NANO_TINY) || defined(ENABLE_HELP)
 void remove_magicline(void);
 #endif
 #ifndef NANO_TINY
-void mark_order(const filestruct **top, size_t *top_x, const filestruct
-	**bot, size_t *bot_x, bool *right_side_up);
+void mark_order(const filestruct **top, size_t *top_x,
+		const filestruct **bot, size_t *bot_x, bool *right_side_up);
+void get_range(const filestruct **top, const filestruct **bot);
 #endif
 size_t get_totsize(const filestruct *begin, const filestruct *end);
 #ifndef NANO_TINY
@@ -618,14 +619,15 @@ filestruct *fsfromline(ssize_t lineno);
 #endif
 #ifdef DEBUG
 void dump_filestruct(const filestruct *inptr);
-void dump_filestruct_reverse(void);
 #endif
 
 /* Most functions in winio.c. */
+void record_macro(void);
+void run_macro(void);
 void get_key_buffer(WINDOW *win);
 size_t get_key_buffer_len(void);
 void unget_kbinput(int kbinput, bool metakey);
-int get_kbinput(WINDOW *win);
+int get_kbinput(WINDOW *win, bool showcursor);
 int parse_kbinput(WINDOW *win);
 int arrow_from_abcd(int kbinput);
 int parse_escape_sequence(WINDOW *win, int kbinput);
@@ -640,19 +642,19 @@ const sc *get_shortcut(int *kbinput);
 void blank_row(WINDOW *win, int y, int x, int n);
 void blank_edit(void);
 void blank_statusbar(void);
+void wipe_statusbar(void);
 void blank_bottombars(void);
 void check_statusblank(void);
 char *display_string(const char *buf, size_t column, size_t span, bool isdata);
 void titlebar(const char *path);
-extern void set_modified(void);
 void statusbar(const char *msg);
 void warn_and_shortly_pause(const char *msg);
 void statusline(message_type importance, const char *msg, ...);
 void bottombars(int menu);
-void onekey(const char *keystroke, const char *desc, int length);
-void place_the_cursor(bool forreal);
+void post_one_key(const char *keystroke, const char *tag, int width);
+void place_the_cursor(void);
 void edit_draw(filestruct *fileptr, const char *converted,
-	int line, size_t from_col);
+		int line, size_t from_col);
 int update_line(filestruct *fileptr, size_t index);
 #ifndef NANO_TINY
 int update_softwrapped_line(filestruct *fileptr);
@@ -661,11 +663,18 @@ bool line_needs_update(const size_t old_column, const size_t new_column);
 int go_back_chunks(int nrows, filestruct **line, size_t *leftedge);
 int go_forward_chunks(int nrows, filestruct **line, size_t *leftedge);
 bool less_than_a_screenful(size_t was_lineno, size_t was_leftedge);
-void edit_scroll(scroll_dir direction, int nrows);
+void edit_scroll(bool direction, int nrows);
 #ifndef NANO_TINY
+size_t get_softwrap_breakpoint(const char *text, size_t leftedge,
+								bool *end_of_line);
+size_t get_chunk_and_edge(size_t column, filestruct *line, size_t *leftedge);
+size_t chunk_for(size_t column, filestruct *line);
+size_t leftedge_for(size_t column, filestruct *line);
+size_t number_of_chunks_in(filestruct *line);
 void ensure_firstcolumn_is_aligned(void);
 #endif
-void edit_redraw(filestruct *old_current);
+size_t actual_last_column(size_t leftedge, size_t column);
+void edit_redraw(filestruct *old_current, update_type manner);
 void edit_refresh(void);
 void adjust_viewport(update_type location);
 void total_redraw(void);
@@ -673,13 +682,14 @@ void total_refresh(void);
 void display_main_list(void);
 void do_cursorpos(bool force);
 void do_cursorpos_void(void);
-void spotlight(bool active, const char *word);
-void xon_complaint(void);
-void xoff_complaint(void);
+void spotlight(bool active, size_t from_col, size_t to_col);
+#ifndef NANO_TINY
+void spotlight_softwrapped(bool active, size_t from_col, size_t to_col);
+#endif
 void do_suspend_void(void);
-void enable_nodelay(void);
-void disable_nodelay(void);
-#ifndef DISABLE_EXTRA
+void disable_waiting(void);
+void enable_waiting(void);
+#ifdef ENABLE_EXTRA
 void do_credits(void);
 #endif
 

src/utils.c

@@ -2,7 +2,7 @@
  *   utils.c  --  This file is part of GNU nano.                          *
  *                                                                        *
  *   Copyright (C) 1999-2011, 2013-2017 Free Software Foundation, Inc.    *
- *   Copyright (C) 2016 Benno Schulenberg                                 *
+ *   Copyright (C) 2016-2017 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    *
@@ -21,69 +21,90 @@
 
 #include "proto.h"
 
-#include <string.h>
-#include <stdio.h>
-#include <unistd.h>
+#include <errno.h>
 #ifdef HAVE_PWD_H
 #include <pwd.h>
 #endif
-#include <ctype.h>
-#include <errno.h>
+#include <string.h>
+#include <unistd.h>
 
 /* Return the user's home directory.  We use $HOME, and if that fails,
  * we fall back on the home directory of the effective user ID. */
 void get_homedir(void)
 {
-    if (homedir == NULL) {
-	const char *homenv = getenv("HOME");
+	if (homedir == NULL) {
+		const char *homenv = getenv("HOME");
 
 #ifdef HAVE_PWD_H
-	/* When HOME isn't set, or when we're root, get the home directory
-	 * from the password file instead. */
-	if (homenv == NULL || geteuid() == 0) {
-	    const struct passwd *userage = getpwuid(geteuid());
+		/* When HOME isn't set, or when we're root, get the home directory
+		 * from the password file instead. */
+		if (homenv == NULL || geteuid() == 0) {
+			const struct passwd *userage = getpwuid(geteuid());
 
-	    if (userage != NULL)
-		homenv = userage->pw_dir;
-	}
+			if (userage != NULL)
+				homenv = userage->pw_dir;
+		}
 #endif
 
-	/* Only set homedir if some home directory could be determined,
-	 * otherwise keep homedir NULL. */
-	if (homenv != NULL && strcmp(homenv, "") != 0)
-	    homedir = mallocstrcpy(NULL, homenv);
-    }
+		/* Only set homedir if some home directory could be determined,
+		 * otherwise keep homedir NULL. */
+		if (homenv != NULL && strcmp(homenv, "") != 0)
+			homedir = mallocstrcpy(NULL, homenv);
+	}
+}
+
+/* Return the filename part of the given path. */
+const char *tail(const char *path)
+{
+	const char *slash = strrchr(path, '/');
+
+	if (slash == NULL)
+		return path;
+	else
+		return ++slash;
+}
+
+/* Return a copy of the two given strings, welded together. */
+char *concatenate(const char *path, const char *name)
+{
+	size_t pathlen = strlen(path);
+	char *joined = charalloc(pathlen + strlen(name) + 1);
+
+	strcpy(joined, path);
+	strcpy(joined + pathlen, name);
+
+	return joined;
 }
 
 #ifdef ENABLE_LINENUMBERS
 /* Return the number of digits that the given integer n takes up. */
 int digits(ssize_t n)
 {
-    if (n < 100000) {
-	if (n < 1000) {
-	    if (n < 100)
-		return 2;
-	    else
-		return 3;
+	if (n < 100000) {
+		if (n < 1000) {
+			if (n < 100)
+				return 2;
+			else
+				return 3;
+		} else {
+			if (n < 10000)
+				return 4;
+			else
+				return 5;
+		}
 	} else {
-	    if (n < 10000)
-		return 4;
-	    else
-		return 5;
+		if (n < 10000000) {
+			if (n < 1000000)
+				return 6;
+			else
+				return 7;
+		} else {
+			if (n < 100000000)
+				return 8;
+			else
+				return 9;
+		}
 	}
-    } else {
-	if (n < 10000000) {
-	    if (n < 1000000)
-		return 6;
-	    else
-		return 7;
-	} else {
-	    if (n < 100000000)
-		return 8;
-	    else
-		return 9;
-	}
-    }
 }
 #endif
 
@@ -91,142 +112,151 @@ int digits(ssize_t n)
  * and return TRUE; otherwise, return FALSE. */
 bool parse_num(const char *str, ssize_t *result)
 {
-    char *first_error;
-    ssize_t value;
+	char *first_error;
+	ssize_t value;
 
-    /* The manual page for strtol() says this is required. */
-    errno = 0;
+	/* The manual page for strtol() says this is required. */
+	errno = 0;
 
-    value = (ssize_t)strtol(str, &first_error, 10);
+	value = (ssize_t)strtol(str, &first_error, 10);
 
-    if (errno == ERANGE || *str == '\0' || *first_error != '\0')
-	return FALSE;
+	if (errno == ERANGE || *str == '\0' || *first_error != '\0')
+		return FALSE;
 
-    *result = value;
+	*result = value;
 
-    return TRUE;
+	return TRUE;
 }
 
 /* Read two numbers, separated by a comma, from str, and store them in
  * *line and *column.  Return FALSE on error, and TRUE otherwise. */
 bool parse_line_column(const char *str, ssize_t *line, ssize_t *column)
 {
-    bool retval;
-    char *firstpart;
-    const char *comma;
+	bool retval;
+	char *firstpart;
+	const char *comma;
 
-    while (*str == ' ')
-	str++;
+	while (*str == ' ')
+		str++;
 
-    comma = strpbrk(str, "m,. /;");
+	comma = strpbrk(str, "m,. /;");
 
-    if (comma == NULL)
-	return parse_num(str, line);
+	if (comma == NULL)
+		return parse_num(str, line);
 
-    retval = parse_num(comma + 1, column);
+	retval = parse_num(comma + 1, column);
+
+	if (comma == str)
+		return retval;
+
+	firstpart = mallocstrcpy(NULL, str);
+	firstpart[comma - str] = '\0';
+
+	retval = parse_num(firstpart, line) && retval;
+
+	free(firstpart);
 
-    if (comma == str)
 	return retval;
-
-    firstpart = mallocstrcpy(NULL, str);
-    firstpart[comma - str] = '\0';
-
-    retval = parse_num(firstpart, line) && retval;
-
-    free(firstpart);
-
-    return retval;
 }
 
 /* Reduce the memory allocation of a string to what is needed. */
 void snuggly_fit(char **str)
 {
-    if (*str != NULL)
-	*str = charealloc(*str, strlen(*str) + 1);
+	if (*str != NULL)
+		*str = charealloc(*str, strlen(*str) + 1);
 }
 
 /* Null a string at a certain index and align it. */
 void null_at(char **data, size_t index)
 {
-    *data = charealloc(*data, index + 1);
-    (*data)[index] = '\0';
+	*data = charealloc(*data, index + 1);
+	(*data)[index] = '\0';
 }
 
 /* For non-null-terminated lines.  A line, by definition, shouldn't
  * normally have newlines in it, so encode its nulls as newlines. */
 void unsunder(char *str, size_t true_len)
 {
-    for (; true_len > 0; true_len--, str++) {
-	if (*str == '\0')
-	    *str = '\n';
-    }
+	for (; true_len > 0; true_len--, str++) {
+		if (*str == '\0')
+			*str = '\n';
+	}
 }
 
 /* For non-null-terminated lines.  A line, by definition, shouldn't
  * normally have newlines in it, so decode its newlines as nulls. */
 void sunder(char *str)
 {
-    for (; *str != '\0'; str++) {
-	if (*str == '\n')
-	    *str = '\0';
-    }
+	for (; *str != '\0'; str++) {
+		if (*str == '\n')
+			*str = '\0';
+	}
 }
 
+#if !defined(ENABLE_TINY) || defined(ENABLE_TABCOMP) || defined(ENABLE_BROWSER)
+/* Free the memory of the given array, which should contain len elements. */
+void free_chararray(char **array, size_t len)
+{
+	if (array == NULL)
+		return;
+
+	while (len > 0)
+		free(array[--len]);
+
+	free(array);
+}
+#endif
+
 /* Fix the regex if we're on platforms which require an adjustment
  * from GNU-style to BSD-style word boundaries. */
 const char *fixbounds(const char *r)
 {
 #ifndef GNU_WORDBOUNDS
-    int i, j = 0;
-    char *r2 = charalloc(strlen(r) * 5);
-    char *r3;
+	int i, j = 0;
+	char *r2 = charalloc(strlen(r) * 5);
+	char *r3;
 
-#ifdef DEBUG
-    fprintf(stderr, "fixbounds(): Start string = \"%s\"\n", r);
-#endif
+	for (i = 0; i < strlen(r); i++) {
+		if (r[i] != '\0' && r[i] == '\\' && (r[i + 1] == '>' || r[i + 1] == '<')) {
+			strcpy(&r2[j], "[[:");
+			r2[j + 3] = r[i + 1];
+			strcpy(&r2[j + 4], ":]]");
+			i++;
+			j += 6;
+		} else
+			r2[j] = r[i];
+		j++;
+	}
 
-    for (i = 0; i < strlen(r); i++) {
-	if (r[i] != '\0' && r[i] == '\\' && (r[i + 1] == '>' || r[i + 1] == '<')) {
-	    strcpy(&r2[j], "[[:");
-	    r2[j + 3] = r[i + 1];
-	    strcpy(&r2[j + 4], ":]]");
-	    i++;
-	    j += 6;
-	} else
-	    r2[j] = r[i];
-	j++;
-    }
-    r2[j] = '\0';
-    r3 = mallocstrcpy(NULL, r2);
-    free(r2);
-#ifdef DEBUG
-    fprintf(stderr, "fixbounds(): Ending string = \"%s\"\n", r3);
-#endif
-    return (const char *) r3;
+	r2[j] = '\0';
+	r3 = mallocstrcpy(NULL, r2);
+	free(r2);
+
+	return (const char *) r3;
 #endif /* !GNU_WORDBOUNDS */
 
-    return r;
+	return r;
 }
 
-#ifndef DISABLE_SPELLER
+#ifdef ENABLE_SPELLER
 /* Is the word starting at the given position in buf and of the given length
  * a separate word?  That is: is it not part of a longer word?*/
 bool is_separate_word(size_t position, size_t length, const char *buf)
 {
-    char before[MAXCHARLEN], after[MAXCHARLEN];
-    size_t word_end = position + length;
+	char before[MAXCHARLEN], after[MAXCHARLEN];
+	size_t word_end = position + length;
 
-    /* Get the characters before and after the word, if any. */
-    parse_mbchar(buf + move_mbleft(buf, position), before, NULL);
-    parse_mbchar(buf + word_end, after, NULL);
+	/* Get the characters before and after the word, if any. */
+	parse_mbchar(buf + move_mbleft(buf, position), before, NULL);
+	parse_mbchar(buf + word_end, after, NULL);
 
-    /* If the word starts at the beginning of the line OR the character before
-     * the word isn't a letter, and if the word ends at the end of the line OR
-     * the character after the word isn't a letter, we have a whole word. */
-    return ((position == 0 || !is_alpha_mbchar(before)) &&
-		(buf[word_end] == '\0' || !is_alpha_mbchar(after)));
+	/* If the word starts at the beginning of the line OR the character before
+	 * the word isn't a letter, and if the word ends at the end of the line OR
+	 * the character after the word isn't a letter, we have a whole word. */
+	return ((position == 0 || !is_alpha_mbchar(before)) &&
+				(buf[word_end] == '\0' || !is_alpha_mbchar(after)));
 }
-#endif /* !DISABLE_SPELLER */
+#endif /* ENABLE_SPELLER */
 
 /* Return the position of the needle in the haystack, or NULL if not found.
  * When searching backwards, we will find the last match that starts no later
@@ -234,76 +264,76 @@ bool is_separate_word(size_t position, size_t length, const char *buf)
  * than start.  If we are doing a regexp search, and we find a match, we fill
  * in the global variable regmatches with at most 9 subexpression matches. */
 const char *strstrwrapper(const char *haystack, const char *needle,
-	const char *start)
+		const char *start)
 {
-    if (*needle == '\0') {
+	if (*needle == '\0') {
 #ifndef NANO_TINY
-	statusline(ALERT, "Searching for nothing -- please report a bug");
+		statusline(ALERT, "Searching for nothing -- please report a bug");
 #endif
-	return (char *)start;
-    }
-
-    if (ISSET(USE_REGEXP)) {
-	if (ISSET(BACKWARDS_SEARCH)) {
-	    size_t last_find, ceiling, far_end;
-	    size_t floor = 0, next_rung = 0;
-		/* The start of the search range, and the next start. */
-
-	    if (regexec(&search_regexp, haystack, 1, regmatches, 0) != 0)
-		return NULL;
-
-	    far_end = strlen(haystack);
-	    ceiling = start - haystack;
-	    last_find = regmatches[0].rm_so;
-
-	    /* A result beyond the search range also means: no match. */
-	    if (last_find > ceiling)
-		return NULL;
-
-	    /* Move the start-of-range forward until there is no more match;
-	     * then the last match found is the first match backwards. */
-	    while (regmatches[0].rm_so <= ceiling) {
-		floor = next_rung;
-		last_find = regmatches[0].rm_so;
-		/* If this is the last possible match, don't try to advance. */
-		if (last_find == ceiling)
-		    break;
-		next_rung = move_mbright(haystack, last_find);
-		regmatches[0].rm_so = next_rung;
-		regmatches[0].rm_eo = far_end;
-		if (regexec(&search_regexp, haystack, 1, regmatches,
-					REG_STARTEND) != 0)
-		    break;
-	    }
-
-	    /* Find the last match again, to get possible submatches. */
-	    regmatches[0].rm_so = floor;
-	    regmatches[0].rm_eo = far_end;
-	    if (regexec(&search_regexp, haystack, 10, regmatches,
-					REG_STARTEND) != 0)
-		return NULL;
-
-	    return haystack + regmatches[0].rm_so;
+		return (char *)start;
 	}
 
-	/* Do a forward regex search from the starting point. */
-	regmatches[0].rm_so = start - haystack;
-	regmatches[0].rm_eo = strlen(haystack);
-	if (regexec(&search_regexp, haystack, 10, regmatches,
-					REG_STARTEND) != 0)
-	    return NULL;
-	else
-	    return haystack + regmatches[0].rm_so;
-    }
-    if (ISSET(CASE_SENSITIVE)) {
-	if (ISSET(BACKWARDS_SEARCH))
-	    return revstrstr(haystack, needle, start);
-	else
-	    return strstr(start, needle);
-    } else if (ISSET(BACKWARDS_SEARCH))
-	return mbrevstrcasestr(haystack, needle, start);
+	if (ISSET(USE_REGEXP)) {
+		if (ISSET(BACKWARDS_SEARCH)) {
+			size_t last_find, ceiling, far_end;
+			size_t floor = 0, next_rung = 0;
+				/* The start of the search range, and the next start. */
 
-    return mbstrcasestr(start, needle);
+			if (regexec(&search_regexp, haystack, 1, regmatches, 0) != 0)
+				return NULL;
+
+			far_end = strlen(haystack);
+			ceiling = start - haystack;
+			last_find = regmatches[0].rm_so;
+
+			/* A result beyond the search range also means: no match. */
+			if (last_find > ceiling)
+				return NULL;
+
+			/* Move the start-of-range forward until there is no more match;
+			 * then the last match found is the first match backwards. */
+			while (regmatches[0].rm_so <= ceiling) {
+				floor = next_rung;
+				last_find = regmatches[0].rm_so;
+				/* If this is the last possible match, don't try to advance. */
+				if (last_find == ceiling)
+					break;
+				next_rung = move_mbright(haystack, last_find);
+				regmatches[0].rm_so = next_rung;
+				regmatches[0].rm_eo = far_end;
+				if (regexec(&search_regexp, haystack, 1, regmatches,
+										REG_STARTEND) != 0)
+					break;
+			}
+
+			/* Find the last match again, to get possible submatches. */
+			regmatches[0].rm_so = floor;
+			regmatches[0].rm_eo = far_end;
+			if (regexec(&search_regexp, haystack, 10, regmatches,
+										REG_STARTEND) != 0)
+				return NULL;
+
+			return haystack + regmatches[0].rm_so;
+		}
+
+		/* Do a forward regex search from the starting point. */
+		regmatches[0].rm_so = start - haystack;
+		regmatches[0].rm_eo = strlen(haystack);
+		if (regexec(&search_regexp, haystack, 10, regmatches,
+										REG_STARTEND) != 0)
+			return NULL;
+		else
+			return haystack + regmatches[0].rm_so;
+	}
+	if (ISSET(CASE_SENSITIVE)) {
+		if (ISSET(BACKWARDS_SEARCH))
+			return revstrstr(haystack, needle, start);
+		else
+			return strstr(start, needle);
+	} else if (ISSET(BACKWARDS_SEARCH))
+		return mbrevstrcasestr(haystack, needle, start);
+
+	return mbstrcasestr(start, needle);
 }
 
 /* This is a wrapper for the perror() function.  The wrapper temporarily
@@ -312,64 +342,63 @@ const char *strstrwrapper(const char *haystack, const char *needle,
  * nperror() causes the window to flicker once. */
 void nperror(const char *s)
 {
-    endwin();
-    perror(s);
-    doupdate();
+	endwin();
+	perror(s);
+	doupdate();
 }
 
 /* This is a wrapper for the malloc() function that properly handles
- * things when we run out of memory.  Thanks, BG, many people have been
- * asking for this... */
+ * things when we run out of memory. */
 void *nmalloc(size_t howmuch)
 {
-    void *r = malloc(howmuch);
+	void *r = malloc(howmuch);
 
-    if (r == NULL && howmuch != 0)
-	die(_("nano is out of memory!"));
+	if (r == NULL && howmuch != 0)
+		die(_("nano is out of memory!"));
 
-    return r;
+	return r;
 }
 
 /* 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)
 {
-    void *r = realloc(ptr, howmuch);
+	void *r = realloc(ptr, howmuch);
 
-    if (r == NULL && howmuch != 0)
-	die(_("nano is out of memory!"));
+	if (r == NULL && howmuch != 0)
+		die(_("nano is out of memory!"));
 
-    return r;
+	return r;
 }
 
 /* Allocate and copy the first n characters of the given src string, after
  * freeing the destination.  Usage: "dest = mallocstrncpy(dest, src, n);". */
 char *mallocstrncpy(char *dest, const char *src, size_t n)
 {
-    if (src == NULL)
-	src = "";
+	if (src == NULL)
+		src = "";
 
-    if (src != dest)
-	free(dest);
+	if (src != dest)
+		free(dest);
 
-    dest = charalloc(n);
-    strncpy(dest, src, n);
+	dest = charalloc(n);
+	strncpy(dest, src, n);
 
-    return dest;
+	return dest;
 }
 
 /* Free the dest string and return a malloc'ed copy of src.  Should be used as:
  * "dest = mallocstrcpy(dest, src);". */
 char *mallocstrcpy(char *dest, const char *src)
 {
-    return mallocstrncpy(dest, src, (src == NULL) ? 1 : strlen(src) + 1);
+	return mallocstrncpy(dest, src, (src == NULL) ? 1 : strlen(src) + 1);
 }
 
 /* Free the string at dest and return the string at src. */
 char *free_and_assign(char *dest, char *src)
 {
-    free(dest);
-    return src;
+	free(dest);
+	return src;
 }
 
 /* When not in softwrap mode, nano scrolls horizontally within a line in
@@ -379,195 +408,199 @@ char *free_and_assign(char *dest, char *src)
  * get_page_start(column) < COLS). */
 size_t get_page_start(size_t column)
 {
-    if (column < editwincols - 1 || ISSET(SOFTWRAP) || column == 0)
-	return 0;
-    else if (editwincols > 8)
-	return column - 7 - (column - 7) % (editwincols - 8);
-    else
-	return column - (editwincols - 2);
+	if (column < editwincols - 1 || ISSET(SOFTWRAP) || column == 0)
+		return 0;
+	else if (editwincols > 8)
+		return column - 7 - (column - 7) % (editwincols - 8);
+	else
+		return column - (editwincols - 2);
 }
 
 /* Return the placewewant associated with current_x, i.e. the zero-based
  * column position of the cursor. */
 size_t xplustabs(void)
 {
-    return strnlenpt(openfile->current->data, openfile->current_x);
+	return strnlenpt(openfile->current->data, openfile->current_x);
 }
 
 /* Return the index in text of the character that (when displayed) will
  * not overshoot the given column. */
 size_t actual_x(const char *text, size_t column)
 {
-    const char *start = text;
-	/* From where we start walking through the text. */
-    size_t width = 0;
-	/* The current accumulated span, in columns. */
+	const char *start = text;
+		/* From where we start walking through the text. */
+	size_t width = 0;
+		/* The current accumulated span, in columns. */
 
-    while (*text != '\0') {
-	int charlen = parse_mbchar(text, NULL, &width);
+	while (*text != '\0') {
+		int charlen = parse_mbchar(text, NULL, &width);
 
-	if (width > column)
-	    break;
+		if (width > column)
+			break;
 
-	text += charlen;
-    }
+		text += charlen;
+	}
 
-    return (text - start);
+	return (text - start);
 }
 
 /* A strnlen() with tabs and multicolumn characters factored in:
  * how many columns wide are the first maxlen bytes of text? */
 size_t strnlenpt(const char *text, size_t maxlen)
 {
-    size_t width = 0;
-	/* The screen display width to text[maxlen]. */
+	size_t width = 0;
+		/* The screen display width to text[maxlen]. */
 
-    if (maxlen == 0)
-	return 0;
+	if (maxlen == 0)
+		return 0;
 
-    while (*text != '\0') {
-	int charlen = parse_mbchar(text, NULL, &width);
+	while (*text != '\0') {
+		int charlen = parse_mbchar(text, NULL, &width);
 
-	if (maxlen <= charlen)
-	    break;
+		if (maxlen <= charlen)
+			break;
 
-	maxlen -= charlen;
-	text += charlen;
-    }
+		maxlen -= charlen;
+		text += charlen;
+	}
 
-    return width;
+	return width;
 }
 
 /* Return the number of columns that the given text occupies. */
 size_t strlenpt(const char *text)
 {
-    size_t span = 0;
+	size_t span = 0;
 
-    while (*text != '\0')
-	text += parse_mbchar(text, NULL, &span);
+	while (*text != '\0')
+		text += parse_mbchar(text, NULL, &span);
 
-    return span;
+	return span;
 }
 
-/* Append a new magicline to filebot. */
+/* Append a new magicline to the end of the buffer. */
 void new_magicline(void)
 {
-    openfile->filebot->next = make_new_node(openfile->filebot);
-    openfile->filebot->next->data = mallocstrcpy(NULL, "");
-    openfile->filebot = openfile->filebot->next;
-    openfile->totsize++;
+	openfile->filebot->next = make_new_node(openfile->filebot);
+	openfile->filebot->next->data = mallocstrcpy(NULL, "");
+	openfile->filebot = openfile->filebot->next;
+	openfile->totsize++;
 }
 
 #if !defined(NANO_TINY) || defined(ENABLE_HELP)
-/* Remove the magicline from filebot, if there is one and it isn't the
- * only line in the file.  Assume that edittop and current are not at
- * filebot. */
+/* Remove the magicline from the end of the buffer, if there is one and
+ * it isn't the only line in the file. */
 void remove_magicline(void)
 {
-    if (openfile->filebot->data[0] == '\0' &&
-		openfile->filebot != openfile->fileage) {
-	openfile->filebot = openfile->filebot->prev;
-	free_filestruct(openfile->filebot->next);
-	openfile->filebot->next = NULL;
-	openfile->totsize--;
-    }
+	if (openfile->filebot->data[0] == '\0' &&
+				openfile->filebot != openfile->fileage) {
+		openfile->filebot = openfile->filebot->prev;
+		free_filestruct(openfile->filebot->next);
+		openfile->filebot->next = NULL;
+		openfile->totsize--;
+	}
 }
 #endif
 
 #ifndef NANO_TINY
-/* Set top_x and bot_x to the top and bottom x-coordinates of the mark,
- * respectively, based on the locations of top and bot.  If
- * right_side_up isn't NULL, set it to TRUE if the mark begins with
- * (mark_begin, mark_begin_x) and ends with (current, current_x), or
- * FALSE otherwise. */
-void mark_order(const filestruct **top, size_t *top_x, const filestruct
-	**bot, size_t *bot_x, bool *right_side_up)
+/* Set (top, top_x) and (bot, bot_x) to the start and end "coordinates" of
+ * the marked region.  If right_side_up isn't NULL, set it to TRUE when the
+ * mark is at the top of the marked region, and to FALSE otherwise. */
+void mark_order(const filestruct **top, size_t *top_x,
+		const filestruct **bot, size_t *bot_x, bool *right_side_up)
 {
-    if ((openfile->current->lineno == openfile->mark_begin->lineno &&
-		openfile->current_x > openfile->mark_begin_x) ||
-		openfile->current->lineno > openfile->mark_begin->lineno) {
-	*top = openfile->mark_begin;
-	*top_x = openfile->mark_begin_x;
-	*bot = openfile->current;
-	*bot_x = openfile->current_x;
-	if (right_side_up != NULL)
-	    *right_side_up = TRUE;
-    } else {
-	*bot = openfile->mark_begin;
-	*bot_x = openfile->mark_begin_x;
-	*top = openfile->current;
-	*top_x = openfile->current_x;
-	if (right_side_up != NULL)
-	    *right_side_up = FALSE;
-    }
+	if ((openfile->current->lineno == openfile->mark->lineno &&
+				openfile->current_x > openfile->mark_x) ||
+				openfile->current->lineno > openfile->mark->lineno) {
+		*top = openfile->mark;
+		*top_x = openfile->mark_x;
+		*bot = openfile->current;
+		*bot_x = openfile->current_x;
+		if (right_side_up != NULL)
+			*right_side_up = TRUE;
+	} else {
+		*bot = openfile->mark;
+		*bot_x = openfile->mark_x;
+		*top = openfile->current;
+		*top_x = openfile->current_x;
+		if (right_side_up != NULL)
+			*right_side_up = FALSE;
+	}
+}
+
+/* Get the set of lines to work on -- either just the current line, or the
+ * first to last lines of the marked region.  When the cursor (or mark) is
+ * at the start of the last line of the region, exclude that line. */
+void get_range(const filestruct **top, const filestruct **bot)
+{
+	if (!openfile->mark) {
+		*top = openfile->current;
+		*bot = openfile->current;
+	} else {
+		size_t top_x, bot_x;
+
+		mark_order(top, &top_x, bot, &bot_x, NULL);
+
+		if (bot_x == 0 && *bot != *top && !also_the_last)
+			*bot = (*bot)->prev;
+		else
+			also_the_last = TRUE;
+	}
 }
 
 /* Given a line number, return a pointer to the corresponding struct. */
 filestruct *fsfromline(ssize_t lineno)
 {
-    filestruct *f = openfile->current;
+	filestruct *f = openfile->current;
 
-    if (lineno <= openfile->current->lineno)
-	while (f->lineno != lineno && f->prev != NULL)
-	    f = f->prev;
-    else
-	while (f->lineno != lineno && f->next != NULL)
-	    f = f->next;
+	if (lineno <= openfile->current->lineno)
+		while (f->lineno != lineno && f->prev != NULL)
+			f = f->prev;
+	else
+		while (f->lineno != lineno && f->next != NULL)
+			f = f->next;
 
-    if (f->lineno != lineno) {
-	statusline(ALERT, _("Internal error: can't match line %ld.  "
-			"Please save your work."), (long)lineno);
-	return NULL;
-    }
+	if (f->lineno != lineno) {
+		statusline(ALERT, "Gone undo line -- please report a bug");
+		return NULL;
+	}
 
-    return f;
+	return f;
 }
 #endif /* !NANO_TINY */
 
 /* Count the number of characters from begin to end, and return it. */
 size_t get_totsize(const filestruct *begin, const filestruct *end)
 {
-    const filestruct *line;
-    size_t totsize = 0;
+	const filestruct *line;
+	size_t totsize = 0;
 
-    /* Sum the number of characters (plus a newline) in each line. */
-    for (line = begin; line != end->next; line = line->next)
-	totsize += mbstrlen(line->data) + 1;
+	/* Sum the number of characters (plus a newline) in each line. */
+	for (line = begin; line != end->next; line = line->next)
+		totsize += mbstrlen(line->data) + 1;
 
-    /* The last line of a file doesn't have a newline -- otherwise it
-     * wouldn't be the last line -- so subtract 1 when at EOF. */
-    if (line == NULL)
-	totsize--;
+	/* The last line of a file doesn't have a newline -- otherwise it
+	 * wouldn't be the last line -- so subtract 1 when at EOF. */
+	if (line == NULL)
+		totsize--;
 
-    return totsize;
+	return totsize;
 }
 
 #ifdef DEBUG
 /* Dump the given buffer to stderr. */
 void dump_filestruct(const filestruct *inptr)
 {
-    if (inptr == openfile->fileage)
-	fprintf(stderr, "Dumping file buffer to stderr...\n");
-    else if (inptr == cutbuffer)
-	fprintf(stderr, "Dumping cutbuffer to stderr...\n");
-    else
-	fprintf(stderr, "Dumping a buffer to stderr...\n");
+	if (inptr == openfile->fileage)
+		fprintf(stderr, "Dumping file buffer to stderr...\n");
+	else if (inptr == cutbuffer)
+		fprintf(stderr, "Dumping cutbuffer to stderr...\n");
+	else
+		fprintf(stderr, "Dumping a buffer to stderr...\n");
 
-    while (inptr != NULL) {
-	fprintf(stderr, "(%ld) %s\n", (long)inptr->lineno, inptr->data);
-	inptr = inptr->next;
-    }
-}
-
-/* Dump the current buffer to stderr in reverse. */
-void dump_filestruct_reverse(void)
-{
-    const filestruct *fileptr = openfile->filebot;
-
-    while (fileptr != NULL) {
-	fprintf(stderr, "(%ld) %s\n", (long)fileptr->lineno,
-		fileptr->data);
-	fileptr = fileptr->prev;
-    }
+	while (inptr != NULL) {
+		fprintf(stderr, "(%zd) %s\n", inptr->lineno, inptr->data);
+		inptr = inptr->next;
+	}
 }
 #endif /* DEBUG */

syntax/asm.nanorc

@@ -1,7 +1,7 @@
 ## Here is an example for assembler.
 
 syntax "asm" "\.(S|s|asm)$"
-magic "[Aa]ssembl(y|er)"
+magic "assembler source"
 comment "//"
 
 color red "\<[A-Z_]{2,}\>"

syntax/awk.nanorc

@@ -1,7 +1,7 @@
 ## Here is an example for awk.
 
 syntax "awk" "\.awk$"
-magic "awk.*script text"
+magic "awk script"
 comment "#"
 
 # Records.

syntax/c.nanorc

@@ -1,10 +1,14 @@
 ## Here is an example for C/C++.
 
 syntax "c" "\.(c(c|pp|xx|\+\+)?|C)$" "\.(h(h|pp|xx)?|H)$" "\.ii?$"
-magic "(ASCII|UTF-8 Unicode) C(\+\+)? program text"
+magic "^(C|C\+\+) (source|program)"
 comment "//"
 
+# Constants.
 color brightred "\<[A-Z_][0-9A-Z_]+\>"
+# Labels.
+color brightmagenta "^[[:space:]]*[A-Z_a-z]+:[[:space:]]*$"
+
 color green "\<(float|double|bool|char|int|short|long|sizeof|enum|void|auto|static|const|struct|union|typedef|extern|(un)?signed|inline)\>"
 color green "\<((s?size)|((u_?)?int(8|16|32|64|ptr)))_t\>"
 color green "\<(class|namespace|template|public|protected|private|typename|this|friend|virtual|override|using|mutable|volatile|register|explicit)\>"
@@ -29,7 +33,7 @@ color brightblue "//.*"
 color brightblue start="/\*" end="\*/"
 
 # Reminders.
-color ,yellow "\<(FIXME|TODO|XXX)\>"
+color brightwhite,yellow "\<(FIXME|TODO|XXX)\>"
 
 # Trailing whitespace.
 color ,green "[[:space:]]+$"

syntax/cmake.nanorc

@@ -6,11 +6,11 @@ comment "#"
 icolor green "^[[:space:]]*[A-Z0-9_]+"
 icolor brightyellow "^[[:space:]]*(include|include_directories|include_external_msproject)\>"
 
-icolor brightgreen "^[[:space:]]*\<((else|end)?if|else|(end)?while|(end)?foreach|break)\>"
-color brightgreen "\<(NOT|COMMAND|POLICY|TARGET|EXISTS|IS_(DIRECTORY|ABSOLUTE)|DEFINED)\>[[:space:]]"
-color brightgreen "[[:space:]]\<(OR|AND|IS_NEWER_THAN|MATCHES|(STR|VERSION_)?(LESS|GREATER|EQUAL))\>[[:space:]]"
+icolor brightgreen "^[[:space:]]*((else|end)?if|else|(end)?while|(end)?foreach|break)\>"
+color brightgreen "\<(NOT|COMMAND|POLICY|TARGET|EXISTS|IS_(DIRECTORY|ABSOLUTE)|DEFINED)[[:space:]]"
+color brightgreen "[[:space:]](OR|AND|IS_NEWER_THAN|MATCHES|(STR|VERSION_)?(LESS|GREATER|EQUAL))[[:space:]]"
 
-icolor brightred "^[[:space:]]*\<((end)?(function|macro)|return)"
+icolor brightred "^[[:space:]]*((end)?(function|macro)|return)"
 
 icolor cyan start="\$(\{|ENV\{)" end="\}"
 color magenta "\<(APPLE|UNIX|WIN32|CYGWIN|BORLAND|MINGW|MSVC(_IDE|60|71|80|90)?)\>"

syntax/default.nanorc

@@ -5,7 +5,7 @@ syntax "default"
 comment "#"
 
 # Comments.
-color cyan "^#.*"
+color cyan "^[[:space:]]*#.*"
 
 # Spaces in front of tabs.
 color ,red " +	+"
@@ -14,4 +14,4 @@ color ,red " +	+"
 color brightred "(GNU )?nano [1-9]\.[0-9]\.[^[:space:][:punct:]]+"
 
 # Email addresses.
-color yellow "<[[:alnum:].%_+-]+@[[:alnum:].-]+\.[[:alpha:]]{2,}>"
+color magenta "<[[:alnum:].%_+-]+@[[:alnum:].-]+\.[[:alpha:]]{2,}>"

syntax/elisp.nanorc

@@ -1,6 +1,7 @@
 ## Here is an example for Emacs Lisp.
 
 syntax "elisp" "\.el$"
+magic "Lisp/Scheme program"
 comment ";"
 
 # Basic functions/macros

syntax/gentoo.nanorc

@@ -1,19 +1,20 @@
-## Here is an example for Gentoo ebuilds/eclasses.
+## Here is an example for Gentoo ebuilds/eclasses,
+## and (further down) one for Portage control files.
 
 syntax "ebuild" "\.e(build|class|blit)$"
 comment "#"
 
-## All the standard portage functions
+## 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))?\>"
-## Highlight bash related syntax
+## 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)\>"
-## Highlight variables ... official portage ones in red, all others in bright red
+## 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|[HPR]?DEPEND|PROVIDE|PROPERTIES|REQUIRED_USE|RESTRICT|USERLAND)\>"
@@ -22,8 +23,8 @@ color red "\<(AS|C(PP|XX)?|LD)FLAGS\>" "\<C(HOST|TARGET|BUILD)\>" "\<(MERGE_TYPE
 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\>"
-## Highlight portage commands
-color magenta "\<(use(_(with|enable|if_iuse)|x)?|in_iuse)\> [!a-zA-Z0-9_+ -]*" "inherit.*"
+## Portage commands:
+color magenta "\<(use(_(with|enable|if_iuse)|x)?|in_iuse) [!a-zA-Z0-9_+ -]*" "inherit.*"
 color brightblue "\<e(begin|end|conf|install|make|qmake4|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)\>" "\<version_is_at_least\>"
@@ -35,20 +36,21 @@ color brightblue "\<prepall(docs|info|man|strip)?\>" "\<prep(info|lib|lib\.(so|a
 color brightblue "\<(doc|ins|exe)?into\>" "\<(f|games)(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))\>"
-## Highlight common commands used in ebuilds
+## 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)\>"
-## Highlight comments (doesnt work that well)
+## Comments (doesn't work that well):
 color yellow "(^|[[:space:]])#.*$"
-## Highlight strings (doesnt work that well)
+## Strings (doesn't work that well):
 color brightyellow ""(\\.|[^\"])*"" "'(\\.|[^'])*'"
 ## Trailing space is bad!
 color ,green "[[:space:]]+$"
 ## Mixed whitespace is also bad.
 color ,green " 	"
 
-## Here is an example for Portage control files.
-##
+
 syntax "/etc/portage" "\.(accept_keywords|env|keywords|mask|unmask|use)(/.+)?$"
+comment "#"
+
 ## Base text:
 color green "^.+$"
 ## Likely version and slot numbers:

syntax/go.nanorc

@@ -24,13 +24,9 @@ color brightcyan "\<(package|import)\>"
 color brightcyan "//[[:space:]]*\+build[[:space:]]+(([a-zA-Z_0-9]+[[:space:]]*)+,[[:space:]]*)*[a-zA-Z_0-9]+"
 
 # Literals.
-color red "\<[0-9]+\.[0-9]*([Ee][+-][0-9]+)?i?\>"
-color red "\<[0-9]+[Ee][+-][0-9]+i?\>"
-color red "\<\.[0-9]+([Ee][+-][0-9]+)?i?\>"
-color red "\<[0-9]+i\>"
-color red "\<[1-9][0-9]*\>"
-color red "\<0[0-7]*\>"
-icolor red "\<0x[0-9a-f]+\>"
+color red "\<[0-9]+(\.[0-9]*)?([Ee][+-]?[0-9]+)?i?\>"
+color red "\B\.[0-9]+([Ee][+-]?[0-9]+)?i?\>"
+color red "\<(0[0-7]*|[1-9][0-9]*|0[xX][0-9a-fA-F]+)\>"
 
 # Strings and characters; slightly fuzzy.
 color red "\<(true|false|nil|iota|_)\>"

syntax/guile.nanorc

@@ -2,7 +2,6 @@
 
 syntax "guile" "\.scm$"
 header "^#!.*guile"
-magic "guile"
 comment ";"
 
 # Basic scheme functions

syntax/html.nanorc

@@ -1,11 +1,11 @@
 ## Here is an example for HTML.
 
 syntax "html" "\.html?$"
-magic "HTML document text"
+magic "HTML document"
 comment "<!--|-->"
 
 # Tags:
-color cyan start="<[[:alpha:]/!?]" end=">"
+color cyan "<[[:alpha:]/!?][^>]*>"
 # Bold, italic, and underlined:
 color brightmagenta "</?[biu]>"
 

syntax/javascript.nanorc

@@ -1,19 +1,23 @@
-## Here is an example for Javascript.
+## Syntax highlighting for Javascript.
 
 syntax "javascript" "\.js$"
 comment "//"
 
-color brightred "\<[A-Z_][0-9A-Z_]+\>"
-color green "\<(const|function|let|this|typeof|var|void)\>"
-color brightyellow "\<(for|if|while|with|do|else|case|default|switch)\>"
-color brightyellow "\<(export|try|throw|catch|new|delete)\>"
-color magenta "\<(continue|break|return|yield)\>"
-color brightmagenta "'([^'\]|(\\["'abfnrtv\\]))'" "'\\(([0-3]?[0-7]{1,2}))'" "'\\x[0-9A-Fa-f]{1,2}'"
+# Declarational stuff.
+color green "\<(async|class|const|extends|function|let|this|typeof|var|void)\>"
+# Flow control and special keywords.
+color brightyellow "\<(do|while|if|else|switch|case|default|for|each|in|of|with)\>"
+color brightyellow "\<(await|export|import|throw|try|catch|finally|new|delete)\>"
+# "Exit" points.
+color magenta "\<(break|continue|return|yield)\>"
+
+# Octal/decimal and hexadecimal numbers.
+color cyan "\<[0-9]+\>" "\<0x[0-9A-Fa-f]+\>"
 
 # Strings.
-color brightyellow "<[^= 	]*>" ""(\\.|[^"])*"" "'(\\.|[^'])*'"
+color brightmagenta ""(\\.|[^"])*"" "'(\\.|[^'])*'" "`(\\.|[^`])*`"
 # Comments.
-color brightblue "//.*"
+color brightblue "(^|[[:space:]])//.*"
 color brightblue start="/\*" end="\*/"
 
 # Trailing whitespace.

syntax/lua.nanorc

@@ -1,10 +1,10 @@
 ## Syntax highlighting for Lua.
 #
-## Author:  Matthew Wild <mwild1 (at) gmail.com>
+## Original author:  Matthew Wild <mwild1 (at) gmail.com>
 ## License: GPL 3 or later
-## Version: 2011-05-05
 
 syntax "lua" "\.lua$"
+magic "Lua script"
 comment "--"
 
 color brightwhite "\[\[.*\]\]"
@@ -16,48 +16,42 @@ color brightyellow ":|\*|/|%|\+|-|\^|>|>=|<|<=|~=|=|\.\.|\<(not|and|or)\>"
 color brightblue "\<(do|end|while|repeat|until|if|elseif|then|else|for|in|function|local|return|break)\>"
 
 # Keywords
-color brightyellow "\<(io|math|os|string|table|coroutine|debug)\>\."
-color brightyellow "\<(_G|_VERSION|assert|collectgarbage|dofile|error|getfenv|getmetatable|ipairs|load|loadfile|module|next|pairs|pcall|print|rawequal|rawget|rawset|require|select|setfenv|setmetatable|tonumber|tostring|type|unpack|xpcall)\s*\("
+color brightyellow "\<(_G|_VERSION|assert|collectgarbage|dofile|error|getfenv|getmetatable|ipairs|load|loadfile|module|next|pairs|pcall|print|rawequal|rawget|rawlen|rawset|require|select|setfenv|setmetatable|tonumber|tostring|type|unpack|xpcall)\s*\("
 
 # Standard library
-color brightyellow "io\.\<(close|flush|input|lines|open|output|popen|read|tmpfile|type|write|stdin|stdout|stderr)\>"
-color brightyellow "math\.\<(abs|acos|asin|atan2|atan|ceil|cosh|cos|deg|exp|floor|fmod|frexp|huge|ldexp|log10|log)\>"
-color brightyellow "math\.\<(max|min|mod|modf|pi|pow|rad|random|randomseed|sinh|tan)\>"
-color brightyellow "os\.\<(clock|date|difftime|execute|exit|getenv|remove|rename|setlocale|time|tmpname)\>"
-color brightyellow "package\.\<(cpath|loaded|loadlib|path|preload|seeall)\>"
-color brightyellow "string\.\<(byte|char|dump|find|format|gmatch|gsub|len|lower|match|rep|reverse|sub|upper)\>"
-color brightyellow "table\.\<(concat|insert|maxn|remove|sort)\>"
-color brightyellow "coroutine\.\<(create|resume|running|status|wrap|yield)\>"
-color brightyellow "debug\.\<(debug|getfenv|gethook|getinfo|getlocal|getmetatable|getregistry|getupvalue)\>"
-color brightyellow "debug\.\<(setfenv|sethook|setlocal|setmetatable|setupvalue|traceback)\>"
+color brightyellow "\<coroutine\.(create|isyieldable|resume|running|status|wrap|yield)\>"
+color brightyellow "\<debug\.(debug|(get|set)(fenv|hook|info|local|metatable|(up|user)value)|getregistry|traceback|upvalue(id|join))\>"
+color brightyellow "\<io\.(close|flush|input|lines|output|p?open|read|tmpfile|type|write|std(in|out|err))\>"
+color brightyellow "\<math\.(abs|acos|asin|atan2?|ceil|cosh?|deg|exp|floor|fmod|frexp|huge|ldexp|log10|log)\>"
+color brightyellow "\<math\.((max|min)(integer)?|modf?|pi|pow|rad|random(seed)?|sinh?|sqrt|tan|tointeger|type|ult)\>"
+color brightyellow "\<os\.(clock|date|difftime|execute|exit|getenv|remove|rename|setlocale|time|tmpname)\>"
+color brightyellow "\<package\.(config|cpath|loaded|loadlib|path|preload|searchers|searchpath|seeall)\>"
+color brightyellow "\<string\.(byte|char|dump|find|format|gmatch|gsub|len|lower|match|pack|packsize|rep|reverse|sub|unpack|upper)\>"
+color brightyellow "\<table\.(concat|insert|maxn|move|pack|remove|sort|unpack)\>"
+color brightyellow "\<utf8\.(char|charpattern|codepoint|codes|len|offset)\>"
 
 # File handle methods
-color brightyellow "\:\<(close|flush|lines|read|seek|setvbuf|write)\>"
-
-# false, nil, true
-color brightmagenta "\<(false|nil|true)\>"
+color brightyellow ":(close|flush|lines|read|seek|setvbuf|write)\>"
 
 # External files
 color brightgreen "\<(dofile|require)\>"
 
-# Numbers
-color red "\<([0-9]+)\>"
+# Special words
+color brightmagenta "\<(false|nil|true)\>"
 
-# Symbols
-color brightmagenta "(\(|\)|\[|\]|\{|\})"
+# Decimal and hexadecimal numbers
+color red "\<[0-9]+(\.[0-9]*)?([Ee][+-]?[0-9]+)?\>"
+icolor red "\<0x[0-9a-f]+(\.[0-9a-f]*)?(p[+-]?[0-9]+)?\>"
+
+# Brackets
+color brightmagenta "\(|\)|\[|\]|\{|\}"
 
 # Shebang
-color brightcyan   "^#!.*"
+color brightcyan "^#!.*"
 
-# Simple comments
-color green        "\-\-.*$"
-
-# Multiline comments
-color green         start="\-\-\[\[" end="\]\]"
+# Simple comments and multiline comments
+color green "--.*"
+color green start="--\[\[" end="\]\]"
 
 # Strings
-color red "\"(\\.|[^\\\"])*\"|'(\\.|[^\\'])*'"
-##color red         start="\[\[" end="\]\]"
-
-# Hex literals
-color red "0x[0-9a-fA-F]*"
+color red ""(\\.|[^"\])*"|'(\\.|[^'\])*'"

syntax/makefile.nanorc

@@ -1,6 +1,7 @@
 ## Here is an example for Makefiles.
 
 syntax "makefile" "Makefile[^/]*$" "\.(make|mk)$"
+magic "makefile script"
 comment "#"
 
 color red "[:=]"

syntax/man.nanorc

@@ -1,7 +1,7 @@
 ## Here is an example for manpages.
 
 syntax "man" "\.[1-9]x?$"
-magic "troff or preprocessor input text"
+magic "troff or preprocessor input"
 comment ".\""
 
 color green "\.(SH|SS|TH) .*$"

syntax/nanohelp.nanorc

@@ -4,9 +4,8 @@
 syntax "nanohelp"
 
 # Key combos:
-color cyan "\^([]4-8A-Z^\_←→↑↓]|Home|End)"  "[←→↑↓]"
-color cyan "\<(Tab|Enter|Home|End|Ins|Del|Bsp|PgUp|PgDn)\>"
-color cyan "\<M-."  "\<F1?[0-9]"  "(\^|M-)Space"
+color cyan "\^[]4-8A-Z^\_◀▶▲▼]"  "[◀▶▲▼]"  "(\^|M-)Space"  "\<M-."  "\<F1?[0-9]"
+color cyan "\<(Tab|Enter|Ins|Del|Bsp|Up|Down|Left|Right|Home|End|PgUp|PgDn)\>"
 
 # Quoted indicators:
 color brightred "'(\^|M-)'"

syntax/nanorc.nanorc

@@ -4,23 +4,25 @@ syntax "nanorc" "\.?nanorc$"
 comment "#"
 
 # Possible errors and parameters
-icolor brightred "^[[:space:]]*((un)?(bind|set)|include|syntax|header|comment|magic|linter|i?color|extendsyntax).*$"
+icolor brightred "^[[:space:]]*((un)?(bind|set)|include|syntax|header|magic|comment|linter|formatter|i?color|extendsyntax).*$"
 
 # Keywords
-icolor brightgreen "^[[:space:]]*(set|unset)[[:space:]]+(allow_insecure_backup|autoindent|backup|backwards|boldtext|casesensitive|constantshow|cut|fill[[:space:]]+[[:digit:]]+|historylog|justifytrim|linenumbers|locking|morespace|mouse|multibuffer|noconvert|nohelp|nopauses|nonewlines|nowrap|positionlog|preserve|quickblank|quiet|rebinddelete|rebindkeypad|regexp|showcursor|smarthome|smooth|softwrap|suspend|tabsize[[:space:]]+[[:digit:]]+|tabstospaces|tempfile|unix|view|wordbounds)\>"
-icolor yellow "^[[:space:]]*set[[:space:]]+((function|key|number|status|title)color)[[:space:]]+(bright)?(white|black|red|blue|green|yellow|magenta|cyan)?(,(white|black|red|blue|green|yellow|magenta|cyan))?\>" "[[:space:]]+[[:digit:]]+$"
-icolor brightgreen "^[[:space:]]*set[[:space:]]+(backupdir|brackets|functioncolor|keycolor|matchbrackets|numbercolor|operatingdir|punct|quotestr|speller|statuscolor|titlecolor|whitespace|wordchars)[[:space:]]+"
+icolor brightgreen "^[[:space:]]*(set|unset)[[:space:]]+(allow_insecure_backup|atblanks|autoindent|backup|backwards|boldtext|casesensitive|constantshow|cutfromcursor|fill[[:space:]]+-?[[:digit:]]+|historylog|linenumbers|locking|morespace|mouse|multibuffer|noconvert|nohelp|nopauses|nonewlines|nowrap|positionlog|preserve|quickblank|quiet|rebinddelete|rebindkeypad|regexp|showcursor|smarthome|smooth|softwrap|suspend|tabsize[[:space:]]+[1-9][0-9]*|tabstospaces|tempfile|trimblanks|unix|view|wordbounds)\>"
+icolor yellow "^[[:space:]]*set[[:space:]]+((function|key|number|selected|status|title)color)[[:space:]]+(bright)?(white|black|red|blue|green|yellow|magenta|cyan)?(,(white|black|red|blue|green|yellow|magenta|cyan))?\>"
+icolor brightgreen "^[[:space:]]*set[[:space:]]+(backupdir|brackets|functioncolor|keycolor|matchbrackets|numbercolor|operatingdir|punct|quotestr|selectedcolor|speller|statuscolor|titlecolor|whitespace|wordchars)[[:space:]]+"
 icolor brightgreen "^[[:space:]]*bind[[:space:]]+((\^([[:alpha:]]|[]0-9\^_]|Space)|M-([[:alpha:]]|[]!"#$%&'()*+,./0-9:;<=>?@\^_`{|}~-]|Space))|F([1-9]|1[0-6])|Ins|Del)[[:space:]]+[[:alpha:]]+[[:space:]]+(all|main|search|replace(with)?|gotoline|writeout|insert|ext(ernal)?cmd|help|spell|linter|browser|whereisfile|gotodir)([[:space:]]+#|[[:space:]]*$)"
 icolor brightgreen "^[[:space:]]*unbind[[:space:]]+((\^([[:alpha:]]|[]0-9\^_]|Space)|M-([[:alpha:]]|[]!"#$%&'()*+,./0-9:;<=>?@\^_`{|}~-]|Space))|F([1-9]|1[0-6])|Ins|Del)[[:space:]]+(all|main|search|replace(with)?|gotoline|writeout|insert|ext(ernal)?cmd|help|spell|linter|browser|whereisfile|gotodir)([[:space:]]+#|[[:space:]]*$)"
 icolor brightgreen "^[[:space:]]*extendsyntax[[:space:]]+[[:alpha:]]+[[:space:]]+(i?color|header|magic|comment|linter|formatter)[[:space:]]+.*$"
+icolor brightgreen "^[[:space:]]*(linter|formatter)[[:space:]]+[[:alpha:]]+"
 icolor green "^[[:space:]]*((un)?(bind|set)|include|syntax|header|magic|comment|linter|formatter|extendsyntax)\>"
 
+# Strings
+color brightmagenta "".+"([[:space:]]|$)"
+
 # Colors
 icolor yellow "^[[:space:]]*i?color[[:space:]]*(bright)?(white|black|red|blue|green|yellow|magenta|cyan)?(,(white|black|red|blue|green|yellow|magenta|cyan))?\>"
 icolor magenta "^[[:space:]]*i?color\>" "\<(start|end)="
 
-# Strings
-color brightmagenta ""(\\.|[^"])*""
 # Comments
 color brightblue "(^|[[:space:]]+)#.*$"
 color cyan "^[[:space:]]*##.*$"

syntax/objc.nanorc

@@ -1,6 +1,7 @@
 ## Here is an example for C/C++/Obj-C.
 
 syntax "m" "\.m$"
+magic "Objective-C source"
 comment "//"
 
 # Stuffs,
@@ -11,7 +12,7 @@ color green "\<(class|namespace|template|public|protected|private|typename|this|
 color brightgreen "\<(for|if|while|do|else|case|default|switch)\>"
 color brightgreen "\<(try|throw|catch|operator|new|delete)\>"
 color brightgreen "\<(goto|continue|break|return)\>"
-color brightgreen "@\<(en(code|d)|i(mplementation|nterface)|selector)\>"
+color brightgreen "@(encode|end|implementation|interface)|selector)\>"
 
 # GCC builtins.
 color cyan "__attribute__[[:space:]]*\(\([^)]*\)\)" "__(aligned|asm|builtin|hidden|inline|packed|restrict|section|typeof|weak)__"

syntax/ocaml.nanorc

@@ -1,6 +1,7 @@
 ## Syntax highlighting for OCaml.
 
 syntax "ocaml" "\.mli?$"
+magic "OCaml"
 comment "(*|*)"
 
 # Uid:

syntax/patch.nanorc

@@ -1,7 +1,7 @@
 ## Here is an example for patch files.
 
 syntax "patch" "\.(patch|diff|debdiff)$"
-magic "diff output text"
+magic "diff output"
 # There is no official support for comments in patch files.
 comment ""
 

syntax/perl.nanorc

@@ -2,7 +2,7 @@
 
 syntax "perl" "\.p[lm]$"
 header "^#!.*perl[-0-9._]*"
-magic "Perl script text"
+magic "Perl script"
 comment "#"
 
 color red "\<(accept|alarm|atan2|bin(d|mode)|c(aller|h(dir|mod|op|own|root)|lose(dir)?|onnect|os|rypt)|d(bm(close|open)|efined|elete|ie|o|ump)|e(ach|of|val|x(ec|ists|it|p))|f(cntl|ileno|lock|ork))\>" "\<(get(c|login|peername|pgrp|ppid|priority|pwnam|(host|net|proto|serv)byname|pwuid|grgid|(host|net)byaddr|protobynumber|servbyport)|([gs]et|end)(pw|gr|host|net|proto|serv)ent|getsock(name|opt)|gmtime|goto|grep|hex|index|int|ioctl|join)\>" "\<(keys|kill|last|length|link|listen|local(time)?|log|lstat|m|mkdir|msg(ctl|get|snd|rcv)|next|oct|open(dir)?|ord|pack|pipe|pop|printf?|push|q|qq|qx|rand|re(ad(dir|link)?|cv|do|name|quire|set|turn|verse|winddir)|rindex|rmdir|s|scalar|seek(dir)?)\>" "\<(se(lect|mctl|mget|mop|nd|tpgrp|tpriority|tsockopt)|shift|shm(ctl|get|read|write)|shutdown|sin|sleep|socket(pair)?|sort|spli(ce|t)|sprintf|sqrt|srand|stat|study|substr|symlink|sys(call|read|tem|write)|tell(dir)?|time|tr(y)?|truncate|umask)\>" "\<(un(def|link|pack|shift)|utime|values|vec|wait(pid)?|wantarray|warn|write)\>"

syntax/php.nanorc

@@ -1,25 +1,25 @@
 ## Here is an example for PHP.
 
 syntax "php" "\.ph(p[23457s~]?|tml)$"
-magic "PHP script text"
+magic "PHP script"
 comment "//"
 
 # PHP markings.
 color brightgreen "(<\?(php)?|\?>)"
 
 # Function names.
-color white "\<[a-z_]*\("
+color white "\<[A-Za-z_][A-Za-z_0-9]*\("
 # Variable names.
-color cyan "\$[a-z_]+"
+color cyan "\$[A-Za-z_][A-Za-z_0-9]*"
 
 # Types.
 color green "\<(array|bool|callable|const|float|global|int|object|string|var)\>"
 
 # Directives and structure.
-color brightyellow "\<(abstract|as|class|clone|(end)?declare|extends|function|implements|include(_once)?|inst(ance|ead)of|interface|namespace|new|private|protected|public|require(_once)?|static|trait|use|yield)\>"
-color brightyellow "\<(case|catch|default|do|echo|else(if)?|end(for(each)?|if|switch|while)|final(ly)?|for(each)?|if|print|switch|throw|try|while)\>"
+color brightcyan "\<(abstract|as|class|clone|(end)?declare|extends|function|implements|include(_once)?|inst(ance|ead)of|interface|namespace|new|private|protected|public|require(_once)?|static|trait|use|yield)\>"
+color brightcyan "\<(case|catch|default|do|echo|else(if)?|end(for(each)?|if|switch|while)|final(ly)?|for(each)?|if|print|switch|throw|try|while)\>"
 # Operators.
-color brightyellow "\<(and|or|xor)\>"
+color brightcyan "\<(and|or|xor)\>"
 
 # Control flow.
 color magenta "\<(break|continue|goto|return)\>"

syntax/po.nanorc

@@ -11,7 +11,7 @@ color brightred "^\"X-Bugs:.*\"$"
 color brightmagenta "\<(Project\-Id\-Version|Report\-Msgid\-Bugs\-To|Last\-Translator|Language(\-Team)?|X-Bugs|X-Generator|Plural\-Forms)\>"
 color cyan "\<(POT\-Creation\-Date|PO\-Revision\-Date|MIME\-Version|Content\-Type|Content\-Transfer\-Encoding)\>"
 # Encodings and numbers.
-color yellow "\<(UTF|ISO|Windows|Mac|IBM)\>\-[0-9]"
+color yellow "\<(UTF|ISO|Windows|Mac|IBM)-[0-9]+"
 color yellow "[0-9]|pre[0-9]|[0-9]bit"
 # Msgids.
 color brightblue "^(msgid|msgid_plural|msgstr)\>"
@@ -24,6 +24,6 @@ color brightmagenta "%([1-9]\$)?[a-z]*"
 color yellow "\""
 color cyan "\\n"
 # Reminders.
-color ,yellow "(FIXME|TODO|XXX)"
+color brightwhite,yellow "(FIXME|TODO|XXX)"
 # Obsolete strings.
 color red "#~.*$"

syntax/postgresql.nanorc

@@ -1,7 +1,6 @@
 ## Here is an example for PostgreSQL.
 
 syntax "sql" "\.sql[2345s~]?$"
-magic "PostgreSQL script text"
 comment "-- "
 
 # Functions.

syntax/pov.nanorc

@@ -7,9 +7,7 @@ color brightcyan "^[[:space:]]*#[[:space:]]*(declare)"
 color brightyellow "\<(sphere|cylinder|translate|matrix|rotate|scale)\>"
 color brightyellow "\<(orthographic|location|up|right|direction|clipped_by)\>"
 color brightyellow "\<(fog_type|fog_offset|fog_alt|rgb|distance|transform)\>"
-color brightred "^\<(texture)\>"
-color brightred "\<(light_source|background)\>"
-color brightred "\<(fog|object|camera)\>"
+color brightred "\<(background|camera|fog|light_source|object|texture)\>"
 color green "(\{|\}|\(|\)|\;|\]|\[|`|\\|\$|<|>|!|=|&|\|)"
 color brightmagenta "\<(union|group|subgroup)\>"
 

syntax/python.nanorc

@@ -2,14 +2,17 @@
 
 syntax "python" "\.py$"
 header "^#!.*python[-0-9._]*"
+magic "Python script"
 linter pyflakes
 comment "#"
 
 # Function definitions.
 icolor brightblue "def [0-9A-Z_]+"
 # Keywords.
-color brightcyan "\<(and|as|assert|break|class|continue|def|del|elif|else|except|exec|finally|for|from)\>"
-color brightcyan "\<(global|if|import|in|is|lambda|not|or|pass|print|raise|return|try|while|with|yield)\>"
+color brightcyan "\<(and|as|assert|async|await|break|class|continue)\>"
+color brightcyan "\<(def|del|elif|else|except|exec|finally|for|from)\>"
+color brightcyan "\<(global|if|import|in|is|lambda|nonlocal|not|or)\>"
+color brightcyan "\<(pass|print|raise|return|try|while|with|yield)\>"
 
 # Single-quoted strings.
 color brightgreen "'([^'\]|\\.)+'"
@@ -17,11 +20,14 @@ color brightgreen ""([^"\]|\\.)+""
 # Comments.
 color brightred "(^|[[:blank:]])#.*$"
 # Triple-quoted strings.
-color brightgreen    start="'''[^'),]" end="(^|[^(\])'''"
-color brightgreen start="\"\"\"[^"),]" end="(^|[^(\])\"\"\""
+color brightgreen    start="'''([^'),]|$)" end="(^|[^(\])'''"
+color brightgreen start="\"\"\"([^"),]|$)" end="(^|[^(\])\"\"\""
+
+# Special values.
+color brightmagenta "\<(False|None|True)\>"
 
 # Reminders.
-color ,yellow "(FIXME|TODO|XXX)"
+color brightwhite,yellow "(FIXME|TODO|XXX)"
 
 # Trailing whitespace.
 color ,green "[[:space:]]+$"

syntax/ruby.nanorc

@@ -2,6 +2,7 @@
 
 syntax "ruby" "\.rb$"
 header "^#!.*ruby[-0-9._]*"
+magic "Ruby script"
 linter ruby -w -c
 comment "#"
 

syntax/sh.nanorc

@@ -2,7 +2,7 @@
 
 syntax "sh" "\.sh$"
 header "^#!.*((ba|da|k|pdk)?sh[-0-9_]*|openrc-run|runscript)"
-magic "(POSIX|Bourne.*) shell script text"
+magic "(POSIX|Bourne-Again) shell script.*text"
 linter dash -n
 comment "#"
 

syntax/tcl.nanorc

@@ -1,6 +1,7 @@
 ## Syntax highlighting for Tcl files.
 
 syntax "tcl" "\.tcl$"
+magic "Tcl(/Tk)? script"
 comment "#"
 
 # Standard Tcl [info commands]:

syntax/tex.nanorc

@@ -1,6 +1,7 @@
 ## Here is a short example for TeX files.
 
 syntax "tex" "\.tex$"
+magic "(La)?TeX document"
 linter chktex -v0 -q -I
 comment "%"
 

syntax/texinfo.nanorc

@@ -2,14 +2,14 @@
 
 syntax "texinfo" "\.texi$"
 header "^\\input texinfo"
-magic "Texinfo source text"
+magic "Texinfo source"
 comment "@c "
 
 # Command arguments, trailing and enclosed.
 color cyan "^@[a-z]+[[:space:]]+.*$"
-color brightmagenta "@[a-z]+\{[^}]*\}"
+color brightmagenta "@[a-zA-Z]+\{[^}]*\}"
 # Commands themselves.
-color yellow "@[a-z]+\{?" "\}"
+color yellow "@[a-zA-Z]+\{?" "\}"
 
 # Menu items.
 color brightred "^\*[[:space:]]+.*::.*$"

syntax/xml.nanorc

@@ -2,7 +2,7 @@
 
 syntax "xml" "\.([jrsx]html?|jnlp|mml|pom|rng|sgml?|svg|w[as]dl|wsdd|xjb|xml|xs(d|lt?)|xul)$"
 header "<\?xml.*version=.*\?>"
-magic "(XML|SGML) (sub)?document text"
+magic "(XML|SGML) (sub)?document"
 comment "<!--|-->"
 
 # The entire content of the tag: