nano/ChangeLog

Changes between v8.0 and v8.1:
------------------------------

Benno Schulenberg (56):
      bindings: let ^L put the cursor line at center, then top, then bottom
      build: check for the correct function in an #ifdef
      build: require version 0.20 of gettext for building nano from git
      build: use the standard `autoreconf` invocation
      bump version numbers and add a news item for the 8.1 release
      docs: add 'set colonparsing' to the sample nanorc
      docs: add the Alt+Home/Alt+End shortcuts to the cheatsheet
      docs: avert hyphenation of the technical words "ncurses" and "terminfo"
      docs: correct the description of --bold, as function tags are unaffected
      docs: document the new --listsyntaxes (-z) option
      docs: don't say any more that -z was removed, as it has been repurposed
      docs: explain the behavior of the new function `cycle`
      docs: explain the details of --colonparsing / -@ / 'set colonparsing'
      docs: extend the FAQ item about urxvt modified keys, with M-Home/M-End
      docs: properly escape a literal '@' in the texi document
      docs: remove the 'filename:linenumber' format from the synopsis
      files: avoid mistakenly setting the column number to a given line number
      files: look for digits and colons starting from the end of the filename
      files: when a filename with a colon and digits exists, open that file
      files: with --rectrict, prevent invoking the browser and toggling backups
      general: disable the type-ahead checking that ncurses normally does
      gnulib: update to its current upstream state
      help: regroup the `center` item, placing it with the new `cycle`
      help: show option -Y/--syntax in --help output also in restricted mode
      input: drop recognition of the urxvt escape sequences for M-Home/M-End
      input: make sure that a string-bind return value is non-negative
      input: provide for urxvt setting a high bit or sending an extra escape
      input: recognize the raw Xterm escape sequences for Alt+Home and Alt+End
      minibar: do not falsely report that a new, empty file is in Mac format
      moving: use edit_scroll() only when scrolling one row is enough
      new feature: add bindable function `cycle` that pushes cursor line around
      new feature: option -z lists the names of available syntaxes
      options: remove the deprecated synonym -$ of -S/--softwrap
      options: require --colonparsing/-@ to parse colon+number after a filename
      rcfile: remove old bindable function 'nowrap', alias of 'breaklonglines'
      startup: do not activate --modernbindings when name starts with "e"
      syntaxes: mention the original author of most of the syntax files
      syntax: man: colorize some of the things that manipulate hyphenation
      syntax: patch: recognize also the .rej extension
      text: do not check for <Tab> + mark while getting input but in do_tab()
      tweaks: add a space after a '+', for consistent formatting
      tweaks: discard a bracketed paste in the help viewer with fewer beeps
      tweaks: drop two redundant conditions
      tweaks: elide unhelpful occurrences of the word "will"
      tweaks: exclude the colon-parsing code from the tiny version
      tweaks: extend the deprecation period of 'set nowrap' and prefix 'bright'
      tweaks: implement do_center() with a single call instead of three
      tweaks: in FAQ, use 'id' attribute instead of empty anchor with 'name'
      tweaks: make a comment more accurate, and unabbreviate a variable name
      tweaks: make the inclusion condition for do_center() more strict
      tweaks: remove the now unneeded special keycode INDENT_KEY
      tweaks: reshuffle a declaration, adjust a comment, normalize indentation
      tweaks: reshuffle some lines, to put vaguely related things together
      tweaks: rewrap some lines, for more even lengths
      tweaks: simplify a condition, to match the same condition five lines back
      tweaks: slightly reword a phrase in the explanation of --colonparsing

Jaroslav Fowkes (1):
      syntax: fortran: fix a typo (a missing backslash)


Changes between v7.2 and v8.0:
------------------------------

Andy Koppe (2):
      input: scroll on mousewheel events instead of moving the cursor
      rcfile: map the gray #rgb codes (#111 to #EEE) to the xterm grayscale

Benjamin Valentin (1):
      new feature: interpret also <filename>:<linenumber> when opening a file

Benno Schulenberg (155):
      bindings: allow speller and friends to be rebound also in restricted mode
      bindings: in the tiny version, bind M-6 only in main, not at the prompts
      bindings: let <Alt+Home/End> move the cursor to top/bottom of viewport
      bindings: let M-" place/remove an anchor, and let M-' jump to one
      bindings: let M-& show the ncurses version+patch, as a small Easter egg
      bindings: make ^F start a forward search by default
      bindings: make ^F start a forward search by default
      bindings: set up modern bindings also when binary's name starts with "e"
      bindings: show ^- instead of ^/ for 'flipgoto' when on a Linux console
      bindings: with --modern, do not let ^Q^Q quit nano without saving
      bindings: with --modern, use ^H for Help when the terminal allows it
      browser: report an error instead of crashing when the folder disappears
      browser: restore typing position at prompt after "^R name ^T ^F ^V ^C"
      bump version numbers and add a news item for the 8.0 release
      chars: add a helper function for stripping leading blanks from a string
      copyright: update the years for the FSF
      display: add a wnoutrefresh() call for NetBSD, to force a cursor update
      display: do not attempt to draw a line that is outside the viewport
      display: draw a new magic line rightaway when there are multiline regexes
      display: show the help lines down to the tiniest possible terminal size
      docs: add a caveat in the FAQ about bracketed pastes
      docs: add a clarifying note to the description of --tabstospaces
      docs: add an example binding for normalizing Unicode to the sample nanorc
      docs: add a reference to the 'help-nano' mailing list
      docs: add M-C and M-Z to the cheatsheet, and reshuffle for balance
      docs: add ^T^S (spell check) and M-S (softwrap) to the cheatsheet
      docs: add two examples of custom key bindings to the nanorc manpage
      docs: adjust an example help line in the README to the current state
      docs: adjust the cheatsheet for the changed meanings of ^F, ^B, M-F, M-B
      docs: clarify that a fileregex is matched against the absolute filename
      docs: delete a remark about libvte that is no longer relevant
      docs: describe nano more specifically as a text editor
      docs: document the <filename>:<linenumber> thing for cursor positioning
      docs: document the new bindable functions 'toprow' and 'bottomrow'
      docs: document the new --modernbindings option
      docs: fix a ten-year-old typo, reported by `correctmost`
      docs: improve the description of the 'flipexecute' bindable function
      docs: in a synopsis, use braces around a choice of required parts
      docs: in the sample nanorc, set the guidestripe to a soft grey
      docs: mention backreferences (for replacements with regular expressions)
      docs: mention how to get the old behavior of ^F, ^B, M-F, and M-B back
      docs: mention that a restricted nano does not access the history files
      docs: mention that 'light' background colors do not work on Linux console
      docs: mention that --modernbindings overrides --preserve
      docs: mention the changed meanings of ^F/^B and also in the texi manual
      docs: mention the missing two options that override --bold
      docs: say "mini bar", not "minibar", when referring to the actual bar
      docs: trim stuff that is more than five years old from the changelog
      docs: use a space after #, like everywhere else in the sample nanorc
      editing: adjust the mark before trimming redundant blanks
      execute: show "Older" and "Newer" in the help lines, to allow rebinding
      feedback: drop an unnecessary warning, to not bother the user
      feedback: lowercase a letter, as the phrase is not a full sentence
      feedback: raise the level of "Macro is empty", to match similar messages
      feedback: suppress filename and linecount when --zero is active
      feedback: suppress format-conversion messages for --zero and --mini
      files: do not allow M-U to remove text read from standard input
      files: run `chmod` and `chown` on the descriptor, not on the filename
      formatter: do not crash when the formatter command is empty
      general: include the Copy function (M-6 or ^C) into the tiny version
      general: let the constant-show toggle override the zero-interface mode
      gnulib: update to current upstream state, to make a fresh checkout work
      gnulib: update to its current upstream state
      help: give the "Replace with" prompt its own help text
      help: mention M-Home and M-End in the help text and help lines
      help: rebalance the help items when --preserve is used
      help: restore ^H and ^D as the primary shortcuts for Backspace and Delete
      help: show ^F/^B as primary shortcuts for search, not as secondary
      indicator: do not oversize the scroller when softwrapping
      input: avoid hanging after a 39-character paste on a VSCode terminal
      input: flush the keystroke buffer upon any kind of error condition
      input: for one bump of the mousewheel scroll two lines, not three
      input: intercept a spurious keycode and say what the actual problem is
      input: let the handler of string binds return a byte whenever possible
      input: neutralize two spurious keycodes from VTE terminals
      input: prevent 'macro_length' from underflowing when hammering M-:
      input: recognize certain escape sequences for F13 to F16 again
      input: snip the `recordmacro` and `runmacro` keystrokes in a better way
      input: store key codes in the macro buffer as they come in from ncurses
      input: store keystroke in macro buffer only when about to interpret it  [reverted]
      justify: keep as much of the marked region onscreen as possible
      justify: keep the cursor at the original end of a marked region
      justify: recompute the multidata for paragraphs larger than the viewport
      justify: set the correct starting point also with --cutfromcursor
      justify: set `x = 0` for the undo item, for when using --cutfromcursor
      linter: do not mess up the input stream when the linter command is empty
      linter: use a format string, to deflect format-string attacks
      memory: prevent a leak by freeing a possibly already existing color combo
      minibar: mention the file format when it's DOS or Mac
      moving: preserve horizontal position when jumping to top or bottom row
      new feature: functions that jump to the top or bottom of the viewport
      new feature: option --modernbindings sets up more widespread key bindings
      options: make --modernbindings actually override --preserve
      rcfile: add bindable functions for moving the cursor to top or bottom row
      rcfile: avoid crashing on an include path that is way too long
      replacing: stash the string to be replaced while asking for replacement
      revert the previous commit -- forget about -? as a synonym for --help
      screen: recalculate the multidata when detecting the need for it
      search: avoid a crash after a nested search, reported by `correctmost`
      search: avoid crashing after searching a help text during a regex replace
      shutdown: ignore a modified buffer when in view mode
      softwrap: adjust start-of-screen when the 'edittop' line is hard-wrapped
      softwrap: realign start-of-screen when redoing an automatic hard-wrap
      softwrap: remember the actual breaking point when wrapping at blanks
      startup: use a format string, to deflect format-string attacks
      syntax: c: require a preceding blank when a line comment contains a quote
      syntax: javascript: recognize also the .mjs extension
      syntax: makefile: ensure that the <Tab> key always produces a tab
      syntax: makefile, sh: recognize also a fresh Makefile and fresh .profile
      syntax: nanorc: colorize {toprow} and {bottomrow} for string binds
      syntax: sh: recognize more shells than `sh` on a shebang line for busybox
      tweaks: add a comment that refers to the VTE spurious-code issue
      tweaks: add a missing 'type' attribute to a <style> tag
      tweaks: add an extra variable, to avoid reusing one for another purpose
      tweaks: add another translator hint, to help avoid overlong key tags
      tweaks: adjust a comment for the changed handling of gray #rgb codes
      tweaks: avoid calling isblank()/isalpha() on what could be a signed char
      tweaks: condense the code that searches for a colon plus line number
      tweaks: delete a redundant fragment of code from do_replace_loop()
      tweaks: elide a redundant variable
      tweaks: express an 'if' more concisely, and add two blank lines
      tweaks: implement the fix of the previous commit somewhat differently
      tweaks: improve three translator hints
      tweaks: make two strings equal to a third, to slightly ease translation
      tweaks: move two static declarations to the only function that uses them
      tweaks: normalize the indentation after the previous change
      tweaks: normalize the indentation after the previous changes
      tweaks: pull a fragment of code a bit forward, to enable the next commit
      tweaks: remove two pairs of unneeded braces, and normalize a line
      tweaks: rename a function and variable, to describe better what they do
      tweaks: rename a function, for contrast, and update antiquated comments
      tweaks: rename a struct element, to avoid a theoretical name collision
      tweaks: rename a symbol (to be clearer), and add three missing comments
      tweaks: rename a variable, away from an abbreviation
      tweaks: rename a variable, away from an abbreviation
      tweaks: rename a variable, to be a bit more indicative
      tweaks: rename a variable, to be clearer when seen in context
      tweaks: rename a variable, to be more readable
      tweaks: rename a variable, to better indicate what it represents
      tweaks: rename two variables, to be clearer and to match others
      tweaks: reshuffle four lines, to allow folding some #ifdefs together
      tweaks: reshuffle three fragments of code, moving related things together
      tweaks: rewrap a comment, and reshuffle seven declarations
      tweaks: rewrap two old news items
      tweaks: shrink the set of characters recognized as line-column separator
      tweaks: slightly improve a comment, to be more accurate
      tweaks: slightly reword the help text for the Replace-With prompt
      tweaks: ungettextize three strings, to make a translator hint right again
      tweaks: use a pair of parentheses to clarify the order of operations
      undo: force a screen refresh also for the special case Bsp-at-EOF
      undo: prevent a use-after-free, reported by `correctmost`
      undo: recompute the multidata when a piece of text is replaced
      undo the prelast commit in order to redo it with a fuller commit message
      verbatim: avoid referencing an uninitialized value
      wrapping: delete only single characters, not a possibly marked region

Jordi Mallach (1):
      docs: fix "availabilty" typo in the manual and the nanorc manpage

Mateusz Kazimierczuk (1):
      options: add -? as a synonym of -h (--help)  [reverted]

Matteo Raso (1):
      syntax: python: colorize decorators specially

Mike Frysinger (2):
      build: link in $(GETRANDOM_LIB) from gnulib
      gnulib: import canonicalize-lgpl for realpath


Changes between v7.1 and v7.2:
------------------------------

Benno Schulenberg (11):
      bindings: let ^/ toggle between the 'search' and 'gotoline' menus
      bump version numbers and add a news item for the 7.2 release
      copyright: update the years for the FSF
      docs: give ^K and ^U some useful function in the alternative bindings
      docs: put the binding of ^Y after its unbinding, for it to be effective
      gnulib: update to its current upstream state
      input: disallow bracketed pastes when in view mode
      syntax: html: colorize specially the other two emphasizing tags too
      tweaks: avoid warnings when compiling with -Wpedantic
      tweaks: rewrap an old news item
      tweaks: separate a special thanks from the preceding ones


Changes between v7.0 and v7.1:
------------------------------

Benno Schulenberg (8):
      build: fix compilation when configured with --disable-comment
      bump version numbers and add a news item for the 7.1 release
      copyright: update the last year for significantly changed files
      docs: say thanks to the Albanian translator
      rcfile: report an error when an included file does not exist
      text: upon Enter, eat only lefthand blanks, not any other characters
      tweaks: avoid passing NULL to access()
      tweaks: wrap overlong lines in the Tcl syntax, to make them manageable


Changes between v6.4 and v7.0:
------------------------------

Benno Schulenberg (94):
      build: add options --disable-formatter and --disable-linter to configure
      build: exclude some pieces that are not needed with --disable-nanorc
      build: exclude two unneeded functions correctly from the tiny version
      build: fix compilation when configured with --enable-tiny
      bump version numbers and add a news item for the 7.0 release
      completion: search through all open buffers for possible completions
      docs: clarify the distinction between binding a function and "{function}"
      docs: describe --disable-formatter and --disable-linter configure options
      docs: explain how to include a double quote plus space in a nanorc regex
      docs: improve the legibility of an itemized list
      docs: mention in the man page how M-V can insert any Unicode code point
      docs: mention that string binds may contain function names between braces
      docs: replace control codes in the examples with {command} cartouches
      docs: suggest a key binding for snipping trailing blanks
      execute: show "Cancelled" instead of "Error" when the user hits ^C
      extra: use the whole terminal for the crawl, and quicken it a bit
      feedback: suppress undo/redo messages when option --zero is in effect
      files: before sending data to an external command, decode LF back to NUL
      files: improve the error handling when executing an external command
      filtering: terminate also the sender process when the user hits ^C
      filtering: when returning to a line number, ensure it is within range
      gnulib: update to its current upstream state
      goto: don't center the current line when the user specified a column only
      help: don't show the New-Buffer toggle when in view mode
      help: move the M-Del item up, so that M-PgUp and M-PgDn are paired
      help: prioritize the unshifted Meta keystrokes for buffer switching
      input: allocate a small keystroke buffer, and never free it
      input: allocate two small character buffers too, and never free them
      input: give up when the capacity of the keystroke buffer overflows
      input: interpret commands of the form {functionname} inside string binds
      memory: avoid a leak when a string bind specifies an unknown menu
      prompt: allow rebinding also ^N, ^Q, and ^Y at the yes-no prompt
      prompt: ingest queued characters before handling any subsequent function
      prompt: prevent execution of inadmissible functions in view mode
      prompt: return FALSE for non-editing functions also in the tiny version
      prompt: toggle the help lines only for the 'nohelp' toggle
      search: skip a match on the magic line, as it is a just convenience line
      startup: ensure that +/string centers the match also with --linenumbers
      startup: for +/string, center the found occurrence when possible
      startup: quit when standard input is not a TTY (after handling arguments)
      startup: report an empty search string also when there is a modifier
      syntax: nanorc: colorize valid function names plus surrounding braces
      tweaks: add parentheses for consistency, and reshuffle for conciseness
      tweaks: allow the linter to be used in view mode, as it makes no changes
      tweaks: attribute some of the features that were added in the last years
      tweaks: avoid iterating over the same string twice in a row
      tweaks: avoid sometimes calling a function three times in a row
      tweaks: check the multiline regexes only for Delete and Backspace
      tweaks: condense a comment, add two small ones, and reshuffle a line
      tweaks: delete a flag that is no longer used
      tweaks: determine in another way whether a shortcut is okay in view mode
      tweaks: discard a bracketed paste in the browser more efficiently
      tweaks: don't use a pointer when the value itself is all that is needed
      tweaks: drop an unneeded check for permissibility of prompt shortcuts
      tweaks: drop a parameter that is no longer used
      tweaks: drop shunting of flags by calling the needed function directly
      tweaks: elide a function that does not need to be a separate function
      tweaks: elide an assignment by iterating with the target variable
      tweaks: elide an intermediary variable that is no longer needed
      tweaks: elide an unused parameter
      tweaks: elide an unused return value
      tweaks: elide a parameter by moving the general case one level up
      tweaks: elide a variable, rename another, and reshuffle an assignment
      tweaks: fold two cases together, because they basically do the same
      tweaks: group the special keycodes for implanted strings together
      tweaks: improve two comments, and exclude two unneeded prototypes
      tweaks: make the crawl use the whole screen also in the tiny version
      tweaks: make two error messages more succinct and easier to translate
      tweaks: move the arrays of menu names and symbols to where they are used
      tweaks: move the --magic option up, so that --zero comes last
      tweaks: move to a given line number more efficiently
      tweaks: move two checks plus corresponding calls to a better place
      tweaks: normalize the indentation after the previous change
      tweaks: reduce four variations of a message to a single common form
      tweaks: rename a macro for clarity, and normalize some indentation
      tweaks: rename a variable, away from an abbreviation
      tweaks: rename two record elements and three parameters, for clarity
      tweaks: replace sizeof(char) with 1, as that is assumed anyway
      tweaks: reshuffle a declaration, and correct the wording of a comment
      tweaks: reshuffle a line, to group things better
      tweaks: reshuffle some code and drop some comments, for conciseness
      tweaks: reshuffle some code, to not determine a shortcut twice
      tweaks: reshuffle some lines, to be more readable instead of compact
      tweaks: reshuffle two lines, for conciseness and in preparation
      tweaks: reword and/or condense four comments
      tweaks: rewrap line, improve wording, and correct typo in old news item
      tweaks: rewrap some lines, drop a redundant call, and reshuffle a line
      tweaks: simplify a function now that a Unicode code can be typed quicker
      tweaks: simplify a pasting routine, modelling it after the injection one
      tweaks: use an auxiliary variable to avoid dereferences of 'shortcut'
      undo: make sure the current line is defined before it is referenced
      verbatim: allow the user to finish Unicode input with <Enter> or <Space>
      verbatim: do not overwrite the status bar when the code is invalid
      verbatim: don't show dots during Unicode input, as they give wrong idea


Changes between v6.3 and v6.4:
------------------------------

Benno Schulenberg (24):
      bump version numbers and add a news item for the 6.4 release
      display: remember text and column positions when softwrapping a line
      docs: concisely describe how the linter behaves
      docs: remove the two notices about the changed defaults
      docs: rename README.GIT to README.hacking, so it's clearer what is meant
      docs: stop mentioning the obsoleted keywords that were removed
      files: designate the root directory with a simple "/", not with "//"
      formatter: instead of leaving curses, use full_refresh() to wipe messages
      gnulib: update to its current upstream state
      help: reshuffle two shortcuts so that more help-line items are paired
      options: stop accepting -z, as --suspendable has been dropped too
      rcfile: remove five obsolete or deprecated keywords
      syntax: default: do not colorize a square or angle bracket after a URL
      syntax: perl: add missing keywords, and reduce the length of some lines
      syntax: python: mention an alternative linter in a comment
      tweaks: add a missing word to a news item
      tweaks: add a translator hint
      tweaks: improve a comment, and reshuffle two functions plus some lines
      tweaks: put each regex on separate line, to better show many keywords
      tweaks: rename a variable, to not be the same as a function name
      tweaks: rename two variables, to not contain the name of another
      tweaks: reshuffle a description and rewrap another
      tweaks: reshuffle a few lines, to group things better
      version: condense the copyright message, to not dominate the output

LIU Hao (1):
      build: ignore errors from `git describe`


Changes between v6.2 and v6.3:
------------------------------

Benno Schulenberg (41):
      build: add the --disable-maintainer-mode option to ./configure
      build: fix compilation for --enable-{tiny,nanorc,color}
      build: fix compilation when configured with --disable-color
      build: remove an obsolete check -- the dependent code was deleted
      bump version numbers and add a news item for the 6.3 release
      display: suppress spotlight yellow and error red when NO_COLOR is set
      docs: add an example binding for copying text to the system clipboard
      execute: clear an anchor only when the whole buffer gets filtered
      execute: don't crash when an empty buffer is piped through a command
      execute: stay on the same line number when filtering the whole buffer
      feedback: show extra warning when writing failed due to "No space left"
      files: do not change to a higher directory when the working one is gone
      files: show a warning when the working directory is gone (when used)
      files: when the working directory exists, still check its accessibility
      filtering: close all output descriptors, so that 'xsel' will terminate
      formatting: change cursor position only after saving it in the undo item
      gnulib: pull in the workaround for a build problem on NetBSD
      gnulib: update to its current upstream state
      justify: stay at the same line number when doing a full justification
      painting: colorize text also after an unterminated start match
      painting: look for another start match only after the actual end match
      painting: recalculate the multidata when making large strides or changes
      painting: stop coloring an extremely long line after 2000 bytes
      painting: tighten the check for a lacking end match on a colored line
      syntax: xml: colorize /> properly, and colorize prolog tags differently
      syntax: xml: colorize user-defined entities differently
      tweaks: avoid a function call when two plain assignments will do
      tweaks: change the indentation of a list, to match other indentations
      tweaks: don't leave an orphaned temporary file behind when writing fails
      tweaks: elide an unneeded call of strlen()
      tweaks: exclude the extra truncation warning from the tiny version
      tweaks: make the triggering of the recalculation of multidata less eager
      tweaks: move the saving and restoring of flags to where it is needed
      tweaks: normalize the indentation after the previous change
      tweaks: prevent the adding of an unwanted newline in a different way
      tweaks: remove redundant braces, and add two translator hints
      tweaks: remove some stray spaces before a comma
      tweaks: simplify a bit of code, eliding two labels and three gotos
      tweaks: simplify a fragment of code, and fold two lines together
      tweaks: trim a few comments, rename a function, and reshuffle some code
      verbatim: with --zero, keep cursor in viewport when it was on bottom row

Mike Frysinger (1):
      general: fix building for Windows


Changes between v6.1 and v6.2:
------------------------------

Benno Schulenberg (14):
      bump version numbers and add a news item for the 6.2 release
      display: suppress the bottom-bar wiping only when the user is editing
      linter: adjust the parsing to accommodate for a modern 'pyflakes'
      syntaxes: fold a couple of regexes together, and improve a few comments
      tweaks: change the type of a variable, to avoid a compiler warning
      tweaks: consistently backslash-escape the dash in M-letter keystrokes
      tweaks: rename a misnamed variable
      tweaks: rename a variable, reshuffle five lines, and snip two comments
      tweaks: rename a variable, to be more correct, and adjust two comments
      tweaks: rename a variable, to be more fitting
      tweaks: rename two more variables, and drop unneeded initializations
      tweaks: rename two variables (to get rid of a prefix), and elide a third
      tweaks: store a result, to avoid calling a function twice
      tweaks: use an intermediate variable, to avoid using one for two purposes


Changes between v6.0 and v6.1:
------------------------------

Benno Schulenberg (37):
      build: fix compilation when configured with --enable-tiny
      build: prevent autopoint from overwriting a newer M4 file from gnulib
      bump version numbers and add a news item for the 6.1 release
      copyright: update the last year for significantly changed files
      copyright: update the years for the FSF
      docs: mention bindable function 'zero', for toggling the interface bars
      docs: mention 'set guidestripe' and 'set unix' in the sample nanorc
      docs: remove obsolete Ctrl+Z from the cheatsheet; mention Alt+X instead
      files: let ^C cancel the exiting when the file on disk was changed
      gnulib: update to its current upstream state
      help: make the description of <Tab> more accurate
      help: update the description of M-D, to match the actual order of counts
      input: instead of moving waiting keycodes, just increment a pointer
      input: suppress any spotlighting when there are more keycodes waiting
      menus: don't show M-6 in the help lines of any prompt
      prompt: allow the user to copy the answer to the cutbuffer (with M-6)
      prompt: let ^K erase text after cursor (if any), otherwise whole answer
      tweaks: add some feedback to the autogen.sh script, to ease the wait
      tweaks: add some small, clarifying comments
      tweaks: adjust a translator hint, to fit the order in the POT file
      tweaks: drop foreign M-U and M-R from among the sample CUA bindings
      tweaks: remove a redundant check -- add a different one for symmetry
      tweaks: remove two redundant checks
      tweaks: rename a function and its two parameters, for clarity
      tweaks: rename a function and reshuffle its call
      tweaks: rename a function, to not contain the name of a variable
      tweaks: rename another variable, to better fit in with its sisters
      tweaks: rename a variable and a parameter, to be more descriptive
      tweaks: rename a variable, away from an abbreviation
      tweaks: rename a variable, for clarity and contrast
      tweaks: rename a variable, to make it clearer it refers to a window
      tweaks: rename two variables, and elide a near-enough duplicate
      tweaks: reshuffle some sample bindings, to group them differently
      tweaks: reword two comments, and rename a variable (away from an abbrev)
      tweaks: stop asking the terminal for its new size -- let ncurses do it
      tweaks: use some symbolic names instead of unclear numeric values
      tweaks: when discarding keycodes, don't bother parsing them


Changes between v5.9 and v6.0:
------------------------------

Benno Schulenberg (192):
      bindings: allow rebinding ^Z also on a Linux console (a VT)
      bindings: allow toggling line numbers (when enabled) also in tiny version
      bindings: let ^T in the tiny version invoke spell checker (when included)
      browser: with --zero, do not use the bottom row for displaying filenames
      build: fix compilation when configured with --disable-color
      build: fix compilation when configured with --disable-nanorc
      build: fix compilation when configured with --enable-tiny
      build: fix compilation with --enable-tiny --enable-nanorc
      build: fix compilation with --enable-tiny --enable-wrapping
      build: include the YAML syntax file among the distributed files
      bump version numbers and add a news item for the 6.0 release
      display: clear the status bar early enough, so that --zero can show text
      display: do not wipe the status bar when --zero or --minibar is active
      display: ensure feedback will be cleared also on a one-row terminal
      display: make sure there are at least as many text lines as help lines
      display: move some code for overwriting verbatim feedback with --zero
      display: redraw the screen in tiny version upon resuming from suspension
      display: with --zero, redraw the bottom row instead of wiping a message
      docs: add a hint about making ^L do just 'refresh' to the sample nanorc
      docs: add a meta description for the HTML rendering of the manual
      docs: add a suggested rebind and three suggested unbinds to the sample rc
      docs: avoid large Table of Contents at top of HTML version of manual
      docs: clarify that --enable options do not fully counteract --enable-tiny
      docs: correct the description of the layout -- four areas, not five
      docs: document the effect of --quickblank together with --zero/--minibar
      docs: explain the effect of --zero / -0 / 'set zero'
      docs: explain what it means when --rawsequences is needed
      docs: give more examples of things that --enable-tiny excludes
      docs: improve the title of the manual, away from the bare "nano"
      docs: list the new color names, from 'rosy' to 'crimson'
      docs: mark options -z, --suspendable, and 'set suspendable' as obsolete
      docs: mention "grey" also at the other place where color names are listed
      docs: mention M-Z (for toggling the interface) among the Feature Toggles
      docs: mention that --zero and 'set zero' hide also the help lines
      docs: move the chapter about editor basics into third position
      docs: prevent a black square in the PDF after the long synopsis line
      docs: reshuffle a GNU marker, to make the title clearer in search engines
      docs: reword several of the descriptions in the chapter on building nano
      docs: reword the beginning of the chapter on nanorc files
      docs: say thanks to the Indonesian translator
      feedback: give a more accurate message when the help lines won't appear
      feedback: refuse the --constantshow toggle (M-C) on a one-row terminal
      feedback: report an unbindable function key as an "Unknown sequence"
      feedback: report the number of inserted lines also with --zero or --mini
      feedback: show a relevant message for M-O when the syntax has 'tabgives'
      feedback: suppress chatty messages when --zero is active
      feedback: to have a status bar, suppress --zero while in the help viewer
      feedback: when reporting an unbound function key, mention its number
      feedback: when the user types ^Z, say they can suspend nano with ^T^Z
      feedback: with --mini or --zero, suppress number of lines for new buffer
      feedback: with --mini/--zero, suppress message when toggling whitespace
      feedback: with --zero, drop a message in a short while, as with --minibar
      files: allow inserting also when started with the --noread option
      files: clear original filename when the user toggles Append or Prepend
      gnulib: update to its current upstream state
      help: do not show ^S when --preserve is in effect
      help: ensure there is a blank line between title bar and start of text
      help: group the now lone mouse toggle with the "behavioral" ones
      help: remove an unneeded restriction for small terminals
      help: skip the leading blank line when the terminal is very flat
      help: when done, always redraw the "bottom bars", also with --zero
      history: process file faster by not filtering out hypothetical duplicates
      input: ensure that no more bytes are consumed than are available
      justify: correctly determine whether top-of-buffer has been reached
      memory: avoid a tiny leak when an option with an argument is given twice
      memory: avoid leaking the filename when dottifying it on the minibar
      new feature: option --zero for an interface without bars
      options: make --zero imply --nohelp, and 'set zero' imply 'set nohelp'
      pasting: when less than a line is pasted, allow automatic hard-wrapping
      prompt: avoid resetting the history pointer when the search is cancelled
      prompt: begin at bottom of history list when at secondary prompt
      prompt: keep a clear answer clear also after an excursion into history
      rcfile: recognize fourteen new color names, mostly for subdued shades
      rcfile: remove the deprecated 'cutwordleft' and 'cutwordright' keywords
      replacing: keep centering the occurrence, also after toggling help lines
      replacing: keep the spotlighted occurrence in view, also with --zero
      replacing: keep the spotlighting, also after toggling the help lines
      search: with --zero, do not obscure an occurrence on the bottom row
      search: with --zero, drop a message at the same time as the spotlight
      statusbar: count words in the way that matches how Ctrl+Right moves
      statusbar: overwrite a message also when using --constant with --zero
      suspension: enable ^Z by default -- ignore -z option and drop M-Z toggle
      suspension: leave ^Z unbound by default -- just ^T^Z will suspend nano
      syntax: debian: remove file -- Debian itself will have to handle it
      syntax: default: colorize comments as one of the last things
      syntax: default: colorize dates, URLs, and nano's release motto
      syntax: email: use a character class, as \s does not work inside brackets
      syntax: gentoo: remove file -- Gentoo itself will have to handle it
      syntax: nanorc: add 'execute' menu for unbind, and drop a bad constraint
      syntax: nanorc: avoid colorizing #rgb codes as if they were comments
      syntax: nanorc: colorize a trailing comment when it begins with non-hex
      syntax: nanorc: colorize each of the fourteen new color names as valid
      syntax: nanorc: improve the file-matching regex
      syntax: nanorc: paint arguments of 'include' and 'extendsyntax' specially
      syntax: nanorc: require whitespace before the start= and end= keywords
      syntax: python: colorize backslash escapes, such as \n and \xef
      syntax: ruby: colorize embedded documentation as a comment
      syntax: rust: do not colorize as string the text between two strings
      syntax: sql: add a few more missing keywords, like TRUE and FALSE
      syntax: sql: add more missing keywords, like INNER and OUTER JOIN
      syntax: sql: add some missing keywords, like ALL and ANY and OR
      syntax: sql: add two missing data types -- xml and tsquery
      syntax: sql: colorize as flow control only keywords that clearly are such
      syntax: sql: colorize keywords regardless of case, and tweak the colors
      syntax: sql: colorize only single-quoted things as strings
      syntax: sql: colorize strings differently than types
      syntax: sql: remove alien stuff -- it was copied mostly from ruby syntax
      syntax: texinfo: be more precise in colorizing @commands
      syntax: texinfo: colorize the special @-plus-punctuation commands too
      syntaxes: avoid coloring "this\" as if it were a valid string
      syntaxes: colorize hex more strictly by using character class [:xdigit:]
      syntaxes: drop three redundant end-of-line anchors
      syntaxes: undouble the backslash within bracket expressions
      syntaxes: use one regex for coloring quoted strings, to avoid overlap
      tabbing: also with --zero, stay one row away from the prompt bar
      tweaks: add an auxiliary variable, to prepare for handling --zero
      tweaks: add two spaces and two comments, and drop an internal check
      tweaks: adjust two values -- help lines need at least 6 rows to be shown
      tweaks: avoid a compiler warning with --enable-tiny --enable-linenumbers
      tweaks: avoid redrawing the entire window when just a 'touch' will do
      tweaks: condense the definitions of all the empty functions
      tweaks: condense the regexes for Types in the SQL syntax
      tweaks: don't redraw the help lines (if present), and normalize a brace
      tweaks: drop a fragment of code that became functionless
      tweaks: elevate two messages, so they get shown with --mini or --zero
      tweaks: elide a variable that is confusing and has just one use case
      tweaks: elide two functions that each were called just once
      tweaks: elide two parameters, as they are now always the same
      tweaks: exclude some hidden-interface code from the tiny version
      tweaks: exclude some suspension code from the tiny version
      tweaks: fix a parentheses mistake -- found by a warning from Clang
      tweaks: fix a somewhat humorous typo
      tweaks: fix typo, and improve description of 'set zero' in sample nanorc
      tweaks: fold a special case into the general one
      tweaks: fold some regexes together, and trim or improve some comments
      tweaks: frob a couple of comments, and drop two, for conciseness
      tweaks: improve a comment, and drop two cluttering compile conditions
      tweaks: invert a condition, to get an early return instead of indentation
      tweaks: just let do_wrap() set 'refresh_needed' instead of returning TRUE
      tweaks: mark keystrokes consistently with @kbd in the manual
      tweaks: move a translator hint to where xgettext will see it
      tweaks: normalize whitespace, drop unneeded prototype, condense comment
      tweaks: on one-row terminals, suppress the message for two toggles
      tweaks: place the unsetting of a flag better, and rename a variable
      tweaks: put three email addresses between the customary angled brackets
      tweaks: reassign a copy of a string to a variable more economically
      tweaks: reduce redundancy (--enable-color implies --enable-nanorc)
      tweaks: remove redundant pair of parentheses, and swap two alternatives
      tweaks: remove redundant parentheses, trim comments, fold some regexes
      tweaks: remove two unneeded unsettings
      tweaks: rename a function and its parameter, to be clearer
      tweaks: rename a function, away from using an abbreviation
      tweaks: rename a function, for some contrast and to get rid of a suffix
      tweaks: rename a function, to describe better what it does nowadays
      tweaks: rename a function, to make it make sense
      tweaks: rename a variable, to be distinctive and less confusing
      tweaks: rename a variable, to be easier to read and to make more sense
      tweaks: rename five empty functions, to get rid of a meaningless suffix
      tweaks: rename three functions, to better fit the general scheme
      tweaks: rename three parameters, away from single letters
      tweaks: rename two empty functions, to be more to the point
      tweaks: rename two functions, to get rid of another senseless suffix
      tweaks: rename two functions, to get rid of one more senseless suffix
      tweaks: rename two functions, to get rid of the senseless suffix of one
      tweaks: rename two more functions, to lose a senseless suffix
      tweaks: rename two parameters and one variable, away from single letters
      tweaks: rename two variables, away from abbreviations
      tweaks: rename two variables, to fit with the names of similar ones
      tweaks: replace a verbose condition with a simpler early return
      tweaks: replace the obscure @* with the slightly clearer @sp
      tweaks: replace two direct refreshes with two scheduled ones
      tweaks: reshuffle a coloring rule, to have related ones together
      tweaks: reshuffle a few lines, and rename a variable
      tweaks: reshuffle a few lines, for Christmas and to group things better
      tweaks: reshuffle a fragment of code to a better place
      tweaks: reshuffle a line and adjust indentation after previous change
      tweaks: reshuffle a line into its proper order, and improve two comments
      tweaks: reshuffle some conditions, so that the ifs have similar formats
      tweaks: reshuffle some conditions, to have more balanced lines
      tweaks: reshuffle some lines, one for clarity, others for conciseness
      tweaks: reshuffle the flag conversion into their order in the help text
      tweaks: reshuffle two conditions, re-indent, and rewrap a line
      tweaks: reword a paragraph, and use usual M- to depict Meta keystrokes
      tweaks: rewrap an old news item, for distraction
      tweaks: rewrap three old NEWS items, for esthetics, and fix a date
      tweaks: shorten a comment, and drop some conditionalizing
      tweaks: shorten the description of --zero in the manuals a bit
      tweaks: shorten two comments, and fold two statements together
      tweaks: swap two parts of specific regexes, for consistency with others
      tweaks: untangle two case items, and shorten a message
      tweaks: use a color closer to the rest of the string, to reduce contrast
      tweaks: use a few fewer capitals, and drop an unneeded synonym

Brad Town (2):
      docs: add a description of the hexadecimal #rgb color specification
      rcfile: support #rgb format for specifying colors in 256-color terminals


Changes between v5.8 and v5.9:
------------------------------

Benno Schulenberg (88):
      browser: make the keystrokes ^W^Y and ^W^V work again
      build: ensure that mkstemps() is available by importing the gnulib module
      build: help Haiku find the header files that define mkstemps()
      bump version numbers and add a news item for the 5.9 release
      copyright: update to the current year for significantly changed files
      cutting: copy anchors into the cutbuffer, so that undo can restore them
      docs: add a paragraph at the start of the README about what nano is
      docs: add a simulated "screenshot" of nano to the README
      docs: add some details to the bug-reporting paragraph in the README
      docs: correct the descriptions of how to invoke the spell checker
      docs: don't use "light" after "bold", as the latter often implies "light"
      docs: improve the description of the spotlighting of a search match
      docs: improve the description of the 'tabstospaces' option
      docs: improve the descriptions of several bindable functions
      docs: improve the recipe in the FAQ for dealing with Alt+Up on a console
      docs: indent the paragraphs in the FAQ that list commands to be typed
      docs: list the default color combo for 'spotlightcolor' in sample nanorc
      docs: mention how to properly colorize all types in nano's source code
      docs: mention in the README which licenses cover nano's code and docs
      docs: move the notice in the main man page, to try and catch other eyes
      docs: refer to the FAQ when <Alt+Up> does nothing on a Linux console
      docs: replace a non-problem in the FAQ with something possibly useful
      docs: spell "filename" as a single word, like in most other occurrences
      feedback: use a smaller diamond to represent an anchor, to not overflow
      feedback: when not in curses mode, just skip displaying any message
      feedback: when not in curses mode, write error messages to the terminal
      files: add the original file's suffix to the name of a temporary file
      files: check for a fifo only when it is an existing file
      files: check the result of fdopen(), to avoid a possible crash
      files: do not call fsync() on a fifo, to avoid a spurious error message
      files: exclude the call of fsync() from the tiny version
      files: give the user time to absorb a warning about someone else editing
      files: making a backup of a fifo makes no sense, so do not try that
      files: prepending to a fifo makes no sense, so do not try that
      files: when the buffer is nameless, include the PID in name of dump file
      files: when there is a slash after the dot, then there is no extension
      files: write a lock file also for a freshly saved buffer
      general: prevent die() from getting recursed into
      gnulib: update to its current upstream state
      help: make the keystrokes ^W^Y and ^W^V work again
      history: emit a warning when file cannot be made private  [coverity]
      input: give up on the input stream only after millions of errors
      memory: free any allocated strings, also in the emergency code path
      po: delete the ancient PO files for Indonesian and Nynorsk
      po: permit the Indonesian PO file to come back -- there was a big update
      shutdown: when dying, do not install/restore a handler for Ctrl+C
      startup: if TERM is unset, try falling back to VT220 instead of failing
      syntax: nanorc: recognize also the template of the sample nanorc file
      syntax: rust: update the license to GPL3 or newer
      syntax: yaml: allow any character in tags except whitespace
      syntax: yaml: allow double colon in key & do not colorize unspaced colon
      syntax: yaml: allow slash and period in key names
      syntax: yaml: colorize backslash-escaped characters as valid or invalid
      syntax: yaml: colorize the question mark of complex mappings too
      syntax: yaml: colorize the two known directives
      syntax: yaml: new file -- coloring rules for YAML files
      tweaks: add Schiermonnikoog to the list of friendly islands
      tweaks: adjust a description of 'showcursor', to match the other ones
      tweaks: adjust three parameters -- two were mistaken, one superfluous
      tweaks: correct two typos and a spello  [codespell]
      tweaks: fix a typo
      tweaks: fold two lines into two others, for conciseness
      tweaks: harmonize the indentations in the FAQ somewhat
      tweaks: in comments, say "buffer" instead of "file" where appropriate
      tweaks: instead of "one" use "you", like in the rest of the man page
      tweaks: remove a redundant feedback message
      tweaks: rename a defined type, to fit within the general pattern
      tweaks: rename a function, to be more fitting
      tweaks: rename a parameter and invert its logic
      tweaks: rename a parameter, to fit better what it is used for
      tweaks: rename a variable and flip its logic, to avoid two negations
      tweaks: rename a variable, away form an abbreviation
      tweaks: rename a variable, to be more grammatical
      tweaks: rename a variable, to be more visible and to match others
      tweaks: rename a variable, to make more sense
      tweaks: rename three variables, to follow the general scheme
      tweaks: reshuffle a few lines, for esthetics and to elide an #ifdef
      tweaks: reshuffle a few lines to avoid an #ifdef and unbalanced braces
      tweaks: reshuffle a fragment of code, to prepare for the next change
      tweaks: reshuffle some code to elide a variable, and improve a comment
      tweaks: reshuffle some lines and adjust some indentation
      tweaks: reshuffle some lines to elide a variable
      tweaks: restore a quote that was accidentally deleted four months ago
      tweaks: rewrap three lines, for esthetics
      tweaks: slightly reword or rewrap some comments in the sample nanorc
      tweaks: try chmodding a dump file only when it was actually written
      tweaks: use five symbolic names, to make eight function calls clearer
      usage: improve the description of the --positionlog option

David Michael (2):
      syntax: gentoo: highlight additional EAPI 7/8 variables
      syntax: gentoo: remove some obsolete keywords and add some new ones

Hussam al-Homsi (3):
      docs: correct the default value of the errorcolor option
      syntax: perl, ruby: remove arbitrary highlighting of here documents
      tweaks: change 'return ++var;' to 'return var + 1;'


Changes between v5.7 and v5.8:
------------------------------

Benno Schulenberg (53):
      bindings: show either "^/" or "^-" in the help lines, instead of "^_"
      bump version numbers and add a news item for the 5.8 release
      display: when a message gets overwritten, note that it is cleared
      docs: add a relevant item to the news for the 4.3 release
      docs: add example bindings for uppercasing and lowercasing a word
      docs: improve the contact info and some line spacing in the PDF
      docs: make ^E access the Execute menu in the example CUA bindings
      docs: mention that "grey"/"gray" may be used as a synonym of "lightblack"
      docs: mention the new 'set minicolor' option
      docs: say thanks to the Icelandic and Slovak translators
      feedback: ensure that the reporting of DOS/Mac format is truthful
      gnulib: update to its current upstream state
      help: use smaller triangles for the arrows
      linter: block the resizing signal while reading output from the linter
      linter: strip filename and line plus column number from the message
      memory: move the correct number of bytes, and not one too many
      memory: prevent a leak when copying the leading quoting to the next line
      minibar: stay out of sight when the terminal has just one row
      options: accept 'set minicolor' for setting the color of the minibar
      rcfile: allow using "grey" or "gray" as a synonym for "lightblack"
      rcfile: do not allow color name "normal" to have a prefix
      replacing: report the number of replacements also on a one-row terminal
      search: automatically drop the spotlighting after a few moments
      search: show "This is the only occurrence" also on a one-row terminal
      startup: allow using a bare "+" to mean put-cursor-on-last-line
      startup: do not accept stray characters after a "+" on the command line
      startup: skip drawing edit window when having message on one-row terminal
      startup: suppress "Search Wrapped" when using +? to search from EOF
      statusbar: ensure that "No further matches" does not get overwritten
      statusbar: on a one-row terminal, drop light messages after a few moments
      statusbar: suppress --constantshow when the terminal has just one row
      statusbar: suppress the cursor when the terminal has just one row
      syntax: nanohelp: avoid colorizing M-) in (M-) and M-" in "M-"
      syntax: nanorc: colorize "light" as valid only for the eight basic colors
      syntax: nanorc: colorize literal control codes, to make them stand out
      syntax: php: colorize the full short tag for echo (<?=)
      tweaks: avoid the subtraction of two size_t variables becoming negative
      tweaks: condense and correct a comment, and move another
      tweaks: condense some code by putting all color names in a single array
      tweaks: drop an assignment that is already part of the called function
      tweaks: frob some whitespace, and rewrap a line
      tweaks: improve a comment, remove unneeded braces, reshuffle some lines
      tweaks: normalize the indentation after the previous change
      tweaks: prevent two more size_t subtractions from going negative
      tweaks: redraw only the affected line instead of doing a full refresh
      tweaks: remove a check that has become superfluous
      tweaks: remove a check that is not needed
      tweaks: rename a variable, for contrast with the function name
      tweaks: rename two functions, to get rid of an ugly _void suffix
      tweaks: reshuffle the coloring of color names, to remove some duplication
      tweaks: use a symbol instead of a hard-coded number
      tweaks: use two symbolic names instead of TRUE and FALSE, for clarity
      wrapping: when copying the quoting part, adjust the file size accordingly

Hussam al-Homsi (1):
      bindings: allow copying text (with M-6) also when in view mode


Changes between v5.6.1 and v5.7:
--------------------------------

Benno Schulenberg (62):
      build: drop the check for two functions that we don't use any more
      build: fix compilation for --enable-tiny plus --enable-multibuffer
      build: fix compilation when configured with --disable-multibuffer
      build: fix compilation when configured with --enable-tiny
      bump version numbers and add a news item for the 5.7 release
      chars: implement mblen() ourselves, for efficiency
      chars: implement mbtowc() ourselves, for more efficiency
      chars: work around a UTF-8 bug in glibc, to display invalid codes right
      chars: work around the wrong private-use-character widths on OpenBSD
      display: avoid determining twice from and until where to draw each row
      display: make the output of --constantshow less jittery
      editing: prevent the pointer for the top row from becoming dangling
      feedback: upon first switch to a buffer, show its error message (if any)
      files: always register the format, also when the file is unwritable
      files: create a new buffer earlier, so that error messages can be stored
      files: when Mac format has been detected, stay with it
      gnulib: pull in the fix for a build problem on older Debian
      gnulib: update to its current upstream state
      indicator: adjust the size to the number of visible lines, not chunks
      input: accept Unicode codes for non-characters as valid, since they are
      memory: do not allocate space for multidata when it's already allocated
      memory: fix an off-by-one error to free also the last line in a group
      memory: prevent a use-after-free when the user respects a lock file
      oops: that doesn't work -- you can't break out of two for loops at once
      options: retire the obsolete 'smooth', 'morespace', and 'nopauses'
      softwrap: avoid time-consuming computations, to burden large files less
      startup: do not crash when trying to open a device or directory
      startup: do not store an error message in the record of another buffer
      startup: save the compiled file-matching regexes, to avoid recompiling
      startup: show the helpful message only when ^G has not been rebound
      syntax: c: colorize also labels that contain digits, and uncolorize colon
      syntax: po: improve the coloring of format specifiers
      syntaxes: replace [[:space:]] with [[:blank:]] to exclude carriage return
      tweaks: adjust and improve one comment, and frob another
      tweaks: adjust two comments, and reshuffle two fragments
      tweaks: avoid a warning on newer compilers, by writing an extra byte
      tweaks: avoid calling extra_chunks_in() when not softwrapping
      tweaks: avoid converting a file name for more than will fit on screen
      tweaks: avoid parsing a multibyte character twice
      tweaks: condense three comments, drop another, and rewrap a line
      tweaks: drop unneeded braces and adjust indentation after previous change
      tweaks: elide a call of strlen() for every row
      tweaks: elide a function that is now basically just two lines
      tweaks: elide an unneeded resetting NULL call to wctomb()
      tweaks: elide a small function that is used just once
      tweaks: elide the pointless is_valid_unicode() function
      tweaks: elide two more instances of useless character copying
      tweaks: improve a couple of comments
      tweaks: morph a function into what it is actually used for
      tweaks: normalize the indentation after an earlier change
      tweaks: put the most likely condition first, for a quicker return
      tweaks: reduce the maximum character length from six bytes to four
      tweaks: remove a misplaced (and nested) #ifdef
      tweaks: rename a variable, away from an abbreviation
      tweaks: rename a variable, for contrast with another
      tweaks: reshuffle a comment, and put the main extension first
      tweaks: reshuffle a fragment of code, to prepare for the next change
      tweaks: reshuffle two conditions, to have the most unlikely one first
      tweaks: set the file format only when unset, so it doesn't need saving
      tweaks: shorten a comment and trim an #ifdef
      tweaks: simplify two fragments of code
      tweaks: simplify two fragments of code, eliding useless character copying

Hussam al-Homsi (1):
      syntax: c: make the highlighting of '#include <...>' more compliant

Mike Frysinger (1):
      syntax: tcl: support Expect scripts too


Changes between v5.6 and v5.6.1:
--------------------------------

Benno Schulenberg (4):
      bump version numbers and add a news item for the 5.6.1 release
      options: rename 'highlightcolor' to the more distinct 'spotlightcolor'
      search: correctly colorize a match also when softwrapping is active
      tweaks: rename a symbol, to better match the corresponding option


Changes between v5.5 and v5.6:
------------------------------

Benno Schulenberg (52):
      build: avoid a warning about duplicate symbol when building from tarball
      build: detect a build from git also when building out of tree
      build: include a workaround only for versions of ncurses that need it
      bump version numbers and add a news item for the 5.6 release
      color: do not look for another 'end' match after already finding one
      color: give highlighted text its own color, to not look like marked text
      color: recompile the file-probing regexes a little faster with REG_NOSUB
      color: use bright yellow to highlight a search match
      color: use inverse video for highlighting when there are no colors
      debug: add timing instruments to cache precalculation and screen refresh
      display: for a large paste or insertion, recalculate the multiline cache
      docs: correct the description of --quickblank for the changed base value
      docs: correct the formatting of a comment in the sample nanorc
      docs: correct the word order for Alt+D in the cheat sheet -- it changed
      docs: mention the new 'set highlightcolor' option
      docs: remove all mentions of --markmatch and 'set markmatch'
      docs: say that --minibar is modified by --constantshow and --stateflags
      feedback: make Full Justify show a message also when using --minibar
      gnulib: update to its current upstream state
      minibar: show a message a little longer when --quickblank isn't used
      minibar: show cursor position + character code only with --constantshow
      minibar: show the state flags only when --stateflags is used
      minibar: suppress the toggling feedback for M-C, but show it for M-Y/M-P
      options: remove --markmatch and 'set markmatch', as the behavior is gone
      painting: always do backtracking for the first row of the screen
      painting: trigger a refresh when a second start match appears on a line
      painting: trigger fewer unneeded full-screen refreshes
      painting: when finding an end match, set its multidata right away
      scrolling: keep centering after large paste, also when line numbers widen
      search: just highlight the found occurrence, instead of marking it
      search: make highlighting the standard, non-changeable behavior
      tweaks: avoid the vague possibility of advancing beyond end-of-line
      tweaks: be slightly more efficient in marking lines as WOULDBE
      tweaks: call wattron()/wattroff() only when actually painting something
      tweaks: correct a comment, improve another, and trim some verbosity
      tweaks: don't bother comparing virgin multidata with current situation
      tweaks: don't bother initializing freshly allocated multidata
      tweaks: don't bother wiping the multidata before recomputing it
      tweaks: elide a function that is now just one line
      tweaks: frob a condition, to be more concise, and reshuffle another
      tweaks: frob some comments, and adjust indentation after previous change
      tweaks: frob some comments, and reshuffle two fragments of code
      tweaks: frob two fragments of code, to be more readable
      tweaks: make a skipping condition more precise
      tweaks: remove an old fix that was made superfluous by a recent fix
      tweaks: remove a strangely placed warning
      tweaks: rename six symbols, to be more straightforward
      tweaks: reshuffle some code, and reduce the scope of a variable
      tweaks: reshuffle three conditions into a better order
      tweaks: rewrap and reindent a few lines
      tweaks: rewrap two lines, for esthetics
      tweaks: stop evaluating a rule when the match is offscreen to the right


Changes between v5.4 and v5.5:
------------------------------

Benno Schulenberg (84):
      build: fix compilation for --enable-{tiny,help,multibuffer}
      build: fix compilation when configured with --disable-utf8
      build: fix compilation when configured with --enable-tiny
      build: remove the '--with-slang' configure option
      bump version numbers and add a news item for the 5.5 release
      chars: short-circuit determining the width of characters under U+0300
      chars: speed up the handling of invalid UTF-8 starter bytes
      copyright: update the years for the FSF
      display: add code for showing minimal state-information bar at the bottom
      display: do not show the state flags in the help viewer or file browser
      docs: explain the effect of --minibar / -_ / 'set minibar'
      docs: explain the purpose of --markmatch / -^ / 'set markmatch'
      docs: insert links to the mailing-list archives into the README
      docs: mention in NEWS that some workarounds were removed
      docs: mention the new 'set promptcolor' option
      docs: remove all mentions of Slang
      feedback: differentiate between remarks, mistakes, and information
      feedback: wipe the status bar by default after 20 keystrokes
      files: when truncating a file name, give an indication of this
      general: remove support for Slang
      gnulib: update to its current upstream state
      input: intercept ^Z also when --minibar is active
      input: interpret a keystroke as Meta only when an earlier escape was solo
      memory: avoid leaking the speller or linter command string, when invoked
      minibar: add an [x/y] "counter" when multiple files are open
      minibar: add a percentage that shows how far the cursor is into the file
      minibar: allow the number-of-lines to overrule also the state flags
      minibar: allow the number-of-lines to overrule location + character code
      minibar: drop the side spaces before suppressing the state flags
      minibar: represent bytes as 0xNN and valid Unicode code points as U+NNNN
      minibar: show the info bar again some 0.8 seconds after a message
      minibar: show the line count in the bar (at startup and when saving)
      minibar: show Unicode codes when in a UTF-8 locale
      minibar: suppress some elements when there is no room to show them
      minibar: when the next character has zero width, show its code too
      minibar: when the overnext character has zero width too, show its code
      mouse: do not offset the shortcuts by 'margin' when using --linenumbers
      oops: use the correct condition for checking the last line will change
      options: accept 'set promptcolor' for setting the color of the prompt bar
      options: add --markmatch and -^ for activating the select-match behavior
      options: add --minibar and -_ for activating basic state-information bar
      prompt: restore a workaround for a cursor misplacement bug in ncurses
      prompt: suppress the ">" character always when exactly at the right edge
      rcfile: rename 'nowrap' toggle to 'breaklonglines', to match the option
      search: set the mark at the end of a found match so it gets highlighted
      search: suppress the cursor when highlighting a match
      speller: do an internal spell check when --speller is an empty string
      speller: strip leading whitespace from command, to avoid a sneaky crash
      syntax: go: add author and license line
      syntax: nanorc: colorize 'bookstyle' as a valid option
      syntax: nanorc: colorize 'set promptcolor' as valid
      syntax: sh: recognize shebangs with any shell after 'env', not just 'sh'
      tweaks: adjust the indentation after the previous change
      tweaks: avoid compilation warnings on 32-bit machine plus newer compiler
      tweaks: avoid computing the cursor column twice, and the "page" too
      tweaks: avoid hitting negative values when using size_t
      tweaks: change an intermediate variable to a better one
      tweaks: clean up after the previous change
      tweaks: condense the description of how to report a bug
      tweaks: correct a translator hint
      tweaks: correct two comments after the previous changes
      tweaks: do not change the pointer, but move the content of the string
      tweaks: drop a small optimization for invalid UTF-8 starter bytes
      tweaks: elide a variable, by using a reallocation instead
      tweaks: fold some conditions into bitwise masks, for efficiency
      tweaks: fold two similar and three identical cases together
      tweaks: move 'set indicator' to its alphabetical place in the manual
      tweaks: move the displaying of the state letters into a separate function
      tweaks: push back the deprecation of the 'set nowrap' option
      tweaks: put the new options in a consistent order in the code
      tweaks: reduce the scope of a static variable
      tweaks: remove some #ifdefs that were there only for Slang
      tweaks: rename a variable, to be similar to its sister
      tweaks: reshuffle a condition, to probably avoid an unneeded calculation
      tweaks: reshuffle an option, to have two related ones grouped together
      tweaks: reshuffle some lines, to group things better
      tweaks: reshuffle some lines, to have most #includes near the beginning
      tweaks: reshuffle some more lines, to have most #defines together
      tweaks: reshuffle two lines, and rename a variable to a plain word
      tweaks: reword the description of an option
      tweaks: simplify a bit of logic
      tweaks: use a boolean instead of an enumeration of two values
      undo: remove the added magic line when a replacement caused one
      weeding: remove some obsolete information from the README

OIX (1):
      mouse: update title bar (the M flag) when the click is on the cursor


Changes between v5.3 and v5.4:
------------------------------

Benno Schulenberg (31):
      bindings: accept b for scrolling back up in help viewer and file browser
      build: exclude a workaround for VTE/Konsole when using a recent ncurses
      build: include a workaround for VTE only when using an older libvte
      bump version numbers and add a news item for the 5.4 release
      copyright: update to the current year for significantly changed files
      docs: adjust for the changed name of the header-file package on Debian
      docs: use standard-compliant HTML entities for the four arrows
      feedback: abort when user tries to open multiple files in tiny version
      gnulib: update to its current upstream state
      help: allow the penultimate item extra space when the number is uneven
      help: show all valid help items also in the Write-Out menu
      linting: avoid putting the cursor beyond the end of the line
      moving: skip combining characters and other zero-width characters
      options: do not spew out the help text when an option is not recognized
      prompt: skip over combining characters also when editing a search string
      rcfile: stop accepting 'set view' in a nanorc file, and undocument it
      statusbar: properly pluralize the line+word+character count report
      tweaks: avoid copying an option's argument when there is no need
      tweaks: normalize the formatting after the previous two changes
      tweaks: rename two variables and improve two comments
      tweaks: rename two variables, one for contrast, another for visibility
      tweaks: reshuffle a fragment of code, for clarity
      tweaks: reshuffle a line, elide two braces, and adjust the indentation
      tweaks: reshuffle three lines and elide braces after the previous change
      tweaks: slightly shorten a loop, to place the actual action outside of it
      tweaks: use the standard symbols for the three standard file descriptors
      utils: die when trying to allocate zero bytes
      weeding: remove another unneeded workaround for VTE
      weeding: remove a workaround for early versions of ncurses-6.0
      weeding: remove a workaround for versions of ncurses before 5.9
      weeding: remove a workaround for VTE that is not needed


Changes between v5.2 and v5.3:
------------------------------

Arturo Borrero González (1):
      syntax: nftables: include author and license lines

Benno Schulenberg (92):
      browser: make M-W/M-Q functional right after startup, if there is history
      browser: sort names that differ only in case with uppercase first
      browser: wipe the status bar before searching again with M-W or M-Q
      build: abort the update script if a PO file contains a control character
      build: avoid two compiler warnings when gnulib has been ripped out
      build: do not accept --enable-libmagic when not having color support
      build: do not let Slang translate escape sequences to key codes
      build: exclude bunches of raw escape sequences from the tiny version
      build: exclude --emptyline, --jumpyscrolling, and --noread from tiny nano
      build: exclude excessive version information from the tiny version
      build: exclude option --tabsize (-T) from the tiny version
      build: exclude reading a file from standard input from the tiny version
      build: exclude the three --help column headers from the tiny version
      build: include some raw sequences for the graphical Debian installer
      build: stop using an obsolete macro, and use 'void' for signal handlers
      build: to verify wide curses, probe for a function that cannot be a macro
      bump version numbers and add a news item for the 5.3 release
      chars: reduce searching time with roughly 85 percent for plain ASCII
      display: do not unnecessarily wipe the status bar
      display: do not wipe the status bar when the terminal has just one row
      display: force the cursor to reappear after a message (when using Slang)
      display: force the cursor to reappear in a better way (when using Slang)
      display: skip a special-case refresh when a message was written
      docs: add a link to the website also to the info manual
      docs: add the customary (1) after the name of command-line programs
      docs: condense the descriptions of cutting and pasting
      docs: explain the purpose of -! / --magic / 'set magic'
      docs: explain the 'set scrollercolor' option, for coloring the indicator
      docs: explain what the options --stateflags (-%) and 'set stateflags' do
      docs: improve two wordings in the sample nanorc
      docs: mention that syntax definitions are available in /usr/share/nano/
      feedback: don't give a hint for <Bsp>, and not after an Alt+key was used
      feedback: in the tiny version, let M-H show the helpful hint too
      feedback: make an "Unbound key" message disappear on the next keystroke
      feedback: show a helpful message for ^G even when there is no help
      feedback: show helpful message for the first ^H at the top of the file
      gnulib: update to its current upstream state
      help: do not leave the cursor on the status bar after a search
      help: do not show "^G Help" in the tiny version when there is no help
      help: ensure the help lines are always drawn, also when using Slang
      help: in the tiny version, show Prev/Next Word before Backward/Forward
      help: nicely pair menu items also when built with just --disable-help
      new feature: option --stateflags to show some states in top-right corner
      options: add -? as a synonym of -h (--help), but leave it undocumented
      options: move --stateflags (-%) and --magic (-!) to the end of the list
      options: require --magic or 'set magic' to enable the use of libmagic
      rcfile: add 'set scrollercolor', for changing the color of the indicator
      suspension: do not enter an invalid byte upon resume (when using Slang)
      suspension: properly resume from an external SIGSTOP
      suspension: resume properly from an external SIGSTOP (when using Slang)
      suspension: switch off flow control at the right moment (for Slang)
      syntaxes: add author and license lines to four of the files
      syntax: nanorc: stop coloring 'morespace' and 'smooth' as valid
      syntax: nanorc: stop coloring 'nopauses' and 'nowrap' as valid
      syntax: nanorc: stop coloring 'quiet' and 'backwards' and 'finalnewline'
      syntax: po: do not leave the occasional tab with a red background color
      syntax: po: highlight embedded control codes that shouldn't be there
      syntax: sh: recognize some shell scripts by their Emacs modeline
      tweaks: add a hint for translators
      tweaks: add some comments to the C syntax, and sort some keywords
      tweaks: adjust some whitespace in the docs, and improve a comment
      tweaks: avoid a compiler warning when compiling with more than -O1
      tweaks: condense a bit of code
      tweaks: condense a bit of code after the previous change
      tweaks: drop the unneeded saving and restoring of a global variable
      tweaks: dummy commit, to add some info about the previous one
      tweaks: elide a one-line function, after reducing it to a single call
      tweaks: fold one function into another, to elide an unneeded return value
      tweaks: harmonize the spelling of a compound word, and rewrap a section
      tweaks: harmonize the style of error messages and warnings in ./configure
      tweaks: make two of the changes that 'autoupdate' suggests
      tweaks: move three functions, to before the ones that call them
      tweaks: move two more functions, to before the ones that call them
      tweaks: move two more functions, to before the one that calls them
      tweaks: normalize the indentation after the previous change
      tweaks: remove an inconsistent newline from the end of an error message
      tweaks: remove an unused element from 'funcstruct', saving 8 more bytes
      tweaks: remove mistaken escape sequences for function keys on xterm
      tweaks: remove two stray comments and two lines that were commented out
      tweaks: rename another variable, away from being misnamed
      tweaks: rename four variables, reshuffle them, and correct one type
      tweaks: rename two elements of history struct, away from abbreviations
      tweaks: rename two variables, to be more distinct
      tweaks: replace two more occurrences of 'AC_TRY_RUN' with 'AC_RUN_IFELSE'
      tweaks: reshuffle a condition, to elide a blank string
      tweaks: reshuffle some lines after the previous change
      tweaks: reshuffle some lines and adjust indentation after previous change
      tweaks: reshuffle two lines and a function name, for a consistent order
      tweaks: rewrap nine more old NEWS items, for balanced line lengths
      tweaks: rewrap three NEWS items, for more balanced line lengths
      tweaks: stop 'autoupdate' from failing with "end of file in string"
      version: remove URL and email address from the --version output

Hussam al-Homsi (5):
      syntax: c: colorize also one-character constants, and the null directive
      syntax: c: colorize also the keywords that start with an underscore
      syntax: c: colorize also the 'restrict' keyword, and the #line directive
      tweaks: reorder a member of 'funcstruct', to save 8 bytes of padding
      tweaks: stop casting the return of malloc() and friends

Ryan Westlund (1):
      syntax: markdown: add author and license line


Changes between v5.1 and v5.2:
------------------------------

Benno Schulenberg (30):
      build: stop distributing the README.GIT file
      build: stop mentioning Slang in two ./configure messages
      bump version numbers and add a news item for the 5.2 release
      display: restore the ability to resize the screen while searching
      docs: add a cross-reference from 'findbracket' to 'set matchbrackets'
      docs: adjust description of ^T in cheatsheet, and mention M-Bsp
      docs: mention in the FAQ how to change the escape sequences of urxvt
      docs: reshuffle the section about the file browser to a better place
      gnulib: back away from a commit that causes trouble when using clang
      gnulib: update to its current upstream state
      history: do not interpret a failing stat() as an error
      input: allow also a Meta keystroke to abort a Search command
      input: dawdle after an ESC also when --rawsequences is used
      input: discard any multibyte character when <Alt> is being held
      input: do not enter invalid bytes when holding down both Alt keys
      input: hold on to a shift-selected region when an unbound key is struck
      rcfile: make sure that "bright"/"light" are prefixes, not separate words
      replacing: do not try to wipe nonexistent multidata, to avoid crashing
      search: poll the input stream directly, not nano's own keystroke buffer
      search: retain the current answer when something is toggled
      tweaks: adjust a comment, and reshuffle the setting of a boolean
      tweaks: condense two declarations
      tweaks: condense two fragments of code, for compactness
      tweaks: elide an unneeded variable
      tweaks: improve three comments and an indentation
      tweaks: move the keyboard-checking code to the end of the search loop
      tweaks: remove a variable and two functions that have become redundant
      tweaks: rename a variable, to not seem to refer to the scrollbar
      tweaks: reshuffle four declarations, and rename two variables
      verbatim: reserve enough space for the result also in non-UTF-8 locales


Changes between v5.0 and v5.1:
------------------------------

Benno Schulenberg (55):
      anchor: in a UTF-8 locale, show an anchor as a diamond, for visibility
      anchor: show an anchor also when the line is horizontally scrolled
      bindings: make <Alt+Backspace> delete a word backwards, like in Bash
      build: fix compilation for --enable-tiny --enable-nanorc --enable-color
      build: fix compilation when configured with --enable-tiny
      build: stop distributing the two old Changelogs
      bump version numbers and add a news item for the 5.1 release
      display: show the cursor position also right after the screen is resized
      docs: fix a closing tag in the FAQ  [tidy]
      docs: mention that anchors are visible when line numbers are shown
      feedback: add the reason to the error message when forking fails
      feedback: use three dots to indicate processing, like everywhere else
      feedback: when creating a pipe fails, report also the reason
      files: do not try writing to the status bar while not in curses mode
      formatter: force the mark off, to not crash by accessing empty cutbuffer
      gnulib: update to its current upstream state
      help: list again the keystroke for toggling the help lines (M-X)
      input: understand M-Bsp also when terminfo does not match the terminal
      moving: make <Ctrl+Up> go to the top when above the cursor all is blank
      rcfile: allow to bind M-[  (even though it is an escape-sequence starter)
      softwrap: initialize the 'extrarows' value for the magic line correctly
      speller: give proper feedback when the user tries to check emptiness
      speller: give startup feedback (relevant when running on a Linux console)
      speller: re-enter curses mode before trying to report an error
      syntax: css: differentiate pseudo-classes (now cyan) from comments (blue)
      syntax: default: colorize also "GNU nano 5.x"
      tweaks: adjust the indentation after the previous change
      tweaks: adjust the indentation after the previous change
      tweaks: avoid a maybe-uninitialized-variable warning from gcc
      tweaks: elide an unneeded variable, by transforming the key code directly
      tweaks: elide two variables that are no longer needed, and update comment
      tweaks: exclude old and mistaken "Esc O" sequences from the tiny version
      tweaks: make a few more direct returns, and reshuffle another bit of code
      tweaks: make a misplaced call of statusline() more obvious by crashing
      tweaks: normalize the indentation after the previous change
      tweaks: normalize the indentation, and regroup two lines
      tweaks: optimize for byte-range characters, and shorten some comments
      tweaks: parse the escape-sequence bytes without copying them first
      tweaks: pass first byte of sequence directly to the decoding function
      tweaks: print error message directly instead of passing it to the caller
      tweaks: read keycodes from the keystroke buffer without copying them
      tweaks: remove an unneeded beep, and reshuffle the lines for compactness
      tweaks: reshuffle a few lines, to condense the code, and improve comment
      tweaks: reshuffle four lines, for esthetics
      tweaks: reshuffle some fragments, to make the next change easier
      tweaks: reshuffle the zeroing of a counter, to allow some direct returns
      tweaks: simplify two functions, as they now return always NULL
      tweaks: split a function into two, one for "Esc O" and one for "Esc ["
      tweaks: stop using a 'switch' when there are just three possibilities
      verbatim: discard entire keystroke when it's not valid for Unicode Input
      verbatim: do not report "Invalid code" when a Unicode character is typed
      verbatim: do not report "Invalid code" when the terminal is resized
      verbatim: insert the full code sequence when <Alt+Backspace> is pressed
      verbatim: pause a little after an ESC, to not miss a succeeding code
      verbatim: report and ignore an invalid keystroke for Unicode input

Michalis Kokologiannakis (2):
      build: avoid compilation warnings by using memcpy() instead of strncpy()
      files: ignore only EPERM when fchmod() or fchown() fails


======================================================================
For older changes, see in https://ftp.gnu.org/gnu/nano/nano-5.0.tar.xz
======================================================================