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Changes in version 0.6.0

Added highlighting of:

  • The isearch and suffix $zle_highlight settings. (79e4d3d12405, 15db71abd0cc; requires zsh 5.3 for $ISEARCHMATCH_ACTIVE / $SUFFIX_ACTIVE support)

Changes in version 0.5.0

Performance improvements:

We thank Sebastian Gniazdowski and "m0viefreak" for significant contributions in this area.

  • Optimize string operations in the main (default) highlighter. (#372/3cb58fd7d7b9, 02229ebd6328, ef4bfe5bcc14, #372/c6b6513ac0d6, #374/15461e7d21c3)

  • Command word highlighting: Use the zsh/parameter module to avoid forks. Memoize (cache) the results. (#298, 3ce01076b521, 2f18ba64e397, 12b879caf7a6; #320, 3b67e656bff5)

  • Avoid forks in the driver and in the root highlighter. (b9112aec798a, 38c8fbea2dd2)

Added highlighting of:

  • pkexec (a precommand). (#248, 4f3910cbbaa5)

  • Aliases that cannot be defined normally nor invoked normally (highlighted as an error). (#263 (in part), 28932316cca6)

  • Path separators (/) — the default behaviour remains to highlight path separators and path components the same way. (#136, #260, 6cd39e7c70d3, 9a934d291e7c, f3d3aaa00cc4)

  • Assignments to individual positional arguments (42=foo to assign to $42). (f4036a09cee3)

  • Linewise region (the visual-line-mode widget, bound to V in zsh's vi keymap). (#267, a7a7f8b42280, ee07588cfd9b)

  • Command-lines recalled by isearch mode; requires zsh≥5.3. (#261 (in part); #257; 4ad311ec0a68)

  • Command-lines whilst the IGNORE_BRACES or IGNORE_CLOSE_BRACES option is in effect. (a8a6384356af, 02807f1826a5)

  • Mismatched parentheses and braces (in the main highlighter). (51b9d79c3bb6, 2fabf7ca64b7, a4196eda5e6f, and others)

  • Mismatched do/done keywords. (b2733a64da93)

  • Mismatched foreach/end keywords. (#96, 2bb8f0703d8f)

  • In Bourne-style function definitions, when the MULTI_FUNC_DEF option is set (which is the default), highlight the first word in the function body as a command word: f() { g "$@" }. (6f91850a01e1)

  • always blocks. (#335, e5782e4ddfb6)

  • Command substitutions inside double quotes, "$(echo foo)". (#139 (in part), c3913e0d8ead)

  • Non-alphabetic parameters inside double quotes ("$$", "$#", "$*", "$@", "$?", "$-"). (4afe670f7a1b, 44ef6e38e5a7)

  • Command words from future versions of zsh (forward compatibly). This also adds an arg0 style that all other command word styles fall back to. (b4537a972eed, bccc3dc26943)

  • Escaped history expansions inside double quotes: : "\!" (28d7056a7a06, et seq)

Fixed highlighting of:

  • Command separator tokens in syntactically-invalid positions. (09c4114eb980)

  • Redirections with a file descriptor number at command word. (#238 (in part), 73ee7c1f6c4a)

  • The select prompt, $PS3. (#268, 451665cb2a8b)

  • Values of variables in vared. (e500ca246286)

  • ! as an argument (neither a history expansion nor a reserved word). (4c23a2fd1b90)

  • "division by zero" error under the brackets highlighter when $ZSH_HIGHLIGHT_STYLES is empty. (f73f3d53d3a6)

  • Process substitutions, <(pwd) and >(wc -l). (#302, 6889ff6bd2ad, bfabffbf975c, fc9c892a3f15)

  • The non-SHORT_LOOPS form of repeat loops: repeat 42; do true; done. (#290, 4832f18c50a5, ef68f50c048f, 6362c757b6f7)

  • Broken symlinks (are now highlighted as files). (#342, 95f7206a9373, 53083da8215e)

  • Lines accepted from isearch mode. (#284; #257, #259, #288; 5bae6219008b, a8fe22d42251)

  • Work around upstream bug that triggered when the command word was a relative path, that when interpreted relative to a $PATH directory denoted a command; the effect of that upstream bug was that the relative path was cached as a "valid external command name". (#354, #355, 51614ca2c994, fdaeec45146b, 7d38d07255e4; upstream fix slated to be released in 5.3 (workers/39104))

  • After accepting a line with the cursor on a bracket, the matching bracket of the bracket under the cursor no longer remains highlighted (with the brackets highlighter). (4c4baede519a)

  • The first word on a new line within an array assignment or initialization is no longer considered a command position. (8bf423d16d46)

  • Subshells that end at command position, (A=42), (true;). (#231, 7fb6f9979121; #344, 4fc35362ee5a)

  • Command word after array assignment, a=(lorem ipsum) pwd. (#330, 7fb6f9979121)

API changes (for highlighter authors):

  • New interface _zsh_highlight_add_highlight. (341a3ae1f015, c346f6eb6fb6)

  • tests: Specify the style key, not its value, in test expectations. (a830613467af, fd061b5730bf, eaa4335c3441, among others)

  • Module author documentation improvements. (#306 (in part), 217669270418, 0ff354b44b6e, 80148f6c8402, 364f206a547f, and others)

  • The driver no longer defines a _zsh_highlight_${highlighter}_highlighter_cache variable, which is in the highlighters' namespace. (3e59ab41b6b8, 80148f6c8402, f91a7b885e7d)

  • Rename highlighter entry points. The old names remain supported for backwards compatibility. (a3d5dfcbdae9, c793e0dceab1)

  • tests: Add the "NONE" expectation. (4da9889d1545, 13018f3dd735, d37c55c788cd)

  • tests: consider a test that writes to stderr to have failed. (#291, 1082067f9315)

Developer-visible changes:

  • Add make quiet-test. (9b64ad750f35)

  • test harness: Better quote replaceables in error messages. (30d8f92df225)

  • test harness: Fix exit code for XPASS. (bb8d325c0cbd)

  • Create HACKING.md. (cef49752fd0e)

  • tests: Emit a description for PASS test points. (6aa57d60aa64, f0bae44b76dd)

  • tests: Create a script that generates a test file. (8013dc3b8db6, et seq; tests/generate.zsh)

Other changes:

  • Under zsh≤5.2, widgets whose names start with a _ are no longer excluded from highlighting. (ed33d2cb1388; reverts part of 186d80054a40 which was for #65)

  • Under zsh≤5.2, widgets implemented by a function named after the widget are no longer excluded from highlighting. (487b122c480d; reverts part of 776453cb5b69)

  • Under zsh≤5.2, shell-unsafe widget names can now be wrapped. (#278, 6a634fac9fb9, et seq)

  • Correct some test expectations. (78290e043bc5)

  • zsh-syntax-highlighting.plugin.zsh: Convert from symlink to plain file for msys2 compatibility. (#292, d4f8edc9f3ad)

  • Document installation under some plugin managers. (e635f766bef9, 9cab566f539b)

  • Don't leak the PATH_DIRS option. (7b82b88a7166)

  • Don't require the FUNCTION_ARGZERO option to be set. (#338, 750aebc553f2)

  • Under zsh≤5.2, support binding incomplete/nonexistent widgets. (9e569bb0fe04, part of #288)

  • Make the driver reentrant, fixing possibility of infinite recursion under zsh≤5.2 under interaction with theoretical third-party code. (#305, d711563fe1bf, 295d62ec888d, f3242cbd6aba)

  • Fix warnings when WARN_CREATE_GLOBAL is set prior to sourcing zsh-syntax-highlighting. (z-sy-h already sets WARN_CREATE_GLOBAL internally.) (da60234fb236)

  • Warn only once, rather than once per keypress, when a highlighter is unavailable. (0a9b347483ae)

Changes in version 0.4.1

Fixes:

  • Arguments to widgets were not properly dash-escaped. Only matters for widgets that take arguments (i.e., that are invoked as zle ${widget} -- ${args}). (282c7134e8ac, reverts c808d2187a73)

Changes in version 0.4.0

Added highlighting of:

  • incomplete sudo commands (a3047a912100, 2f05620b19ae)

      sudo;
  sudo -u;

  • command words following reserved words (#207, #222, b397b12ac139 et seq, 6fbd2aa9579b et seq, 8b4adbd991b0)

      if ls; then ls; else ls; fi
  repeat 10 do ls; done

    (The ls are now highlighted as a command.)

  • comments (when INTERACTIVE_COMMENTS is set) (#163, #167, 693de99a9030)

      echo Hello # comment

  • closing brackets of arithmetic expansion, subshells, and blocks (#226, a59f442d2d34, et seq)

      (( foo ))
  ( foo )
  { foo }

  • command names enabled by the PATH_DIRS option (#228, 96ee5116b182)

      # When ~/bin/foo/bar exists, is executable, ~/bin is in $PATH,
  # and 'setopt PATH_DIRS' is in effect
  foo/bar

  • parameter expansions with braces inside double quotes (#186, 6e3720f39d84)

      echo "${foo}"

  • parameter expansions in command word (#101, 4fcfb15913a2)

      x=/bin/ls
  $x -l

  • the command separators '|&', '&!', '&|'

      view file.pdf &!  ls

Fixed highlighting of:

  • precommand modifiers at non-command-word position (#209, 2c9f8c8c95fa)

      ls command foo

  • sudo commands with infix redirections (#221, be006aded590, 86e924970911)

      sudo -u >/tmp/foo.out user ls

  • subshells; anonymous functions (#166, #194, 0d1bfbcbfa67, 9e178f9f3948)

      (true)
  () { true }

  • parameter assignment statements with no command (#205, 01d7eeb3c713)

      A=1;

    (The semicolon used to be highlighted as a mistake)

  • cursor highlighter: Remove the cursor highlighting when accepting a line. (#109, 4f0c293fdef0)

Removed features:

  • Removed highlighting of approximate paths (path_approx). (#187, 98aee7f8b9a3)

Other changes:

  • main highlighter refactored to use states rather than booleans. (2080a441ac49, et seq)

  • Fix initialization when sourcing zsh-syntax-highlighting.zsh via a symlink (083c47b00707)

  • docs: Add screenshot. (57624bb9f64b)

  • widgets wrapping: Don't add '--' when invoking widgets. (c808d2187a73) [reverted in 0.4.1]

  • Refresh highlighting upon accept-* widgets (accept-line et al). (59fbdda64c21)

  • Stop leaking match/mbegin/mend to global scope (thanks to upstream WARN_CREATE_GLOBAL improvements). (d3deffbf46a4)

  • 'make install': Permit setting $(SHARE_DIR) from the environment. (e1078a8b4cf1)

  • driver: Tolerate KSH_ARRAYS being set in the calling context. (#162, 8f19af6b319d)

  • 'make install': Install documentation fully and properly. (#219, b1619c001390, et seq)

  • docs: Improve 'main' highlighter's documentation. (00de155063f5, 7d4252f5f596)

  • docs: Moved to a new docs/ tree; assorted minor updates (c575f8f37567, 5b34c23cfad5, et seq)

  • docs: Split README.md into INSTALL.md (0b3183f6cb9a)

  • driver: Report $ZSH_HIGHLIGHT_REVISION when running from git (84734ba95026)

Developer-visible changes:

  • Test harness converted to TAP format (d99aa58aaaef, et seq)

  • Run each test in a separate subprocess, isolating them from each other (d99aa58aaaef, et seq)

  • Fix test failure with nonexisting $HOME (#216, b2ac98b98150)

  • Test output is now colorized. (4d3da30f8b72, 6fe07c096109)

  • Document make install (a18a7427fd2c)

  • tests: Allow specifying the zsh binary to use. (557bb7e0c6a0)

  • tests: Add 'make perf' target (4513eaea71d7)

  • tests: Run each test in a sandbox directory (c01533920245)

Changes in version 0.3.0

Added highlighting of:

  • suffix aliases (requires zsh 5.1.1 or newer):

      alias -s png=display
  foo.png

  • prefix redirections:

      <foo.txt cat

  • redirection operators:

      echo > foo.txt

  • arithmetic evaluations:

      (( 42 ))

  • $'' strings, including \x/\octal/\u/\U escapes

      : $'foo\u0040bar'

  • multiline strings:

      % echo "line 1
  line 2"

  • string literals that haven't been finished:

      % echo "Hello, world

  • command words that involve tilde expansion:

      % ~/bin/foo

Fixed highlighting of:

  • quoted command words:

      % \ls

  • backslash escapes in "" strings:

      % echo "\x41"

  • noglob after command separator:

      % :; noglob echo *

  • glob after command separator, when the first command starts with 'noglob':

      % noglob true; echo *

  • the region (vi visual mode / set-mark-command) (issue #165)

  • redirection and command separators that would be highlighted as path_approx

      % echo foo;‸
  % echo <‸

    (where ‸ represents the cursor location)

  • escaped globbing (outside quotes)

      % echo \*

Other changes:

  • implemented compatibility with zsh's paste highlighting (issue #175)

  • $? propagated correctly to wrapped widgets

  • don't leak $REPLY into global scope

Developer-visible changes:

  • added makefile with install and test targets

  • set warn_create_global internally

  • document release process

Version 0.2.1

(Start of changelog.)