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zsh-syntax-highlighting
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workaround for PAT_STATIC bug in zsh 

ZSH versions less than 5.3.2 (or 5.4) have a bug that prevents
`history-incremental-pattern-search-backward` for working
correctly (the history stops searching after the first found item).

Closes #407
This commit is contained in:
Christian Höltje 2017-02-07 12:19:18 -05:00
parent 9523d6d49c
commit 835fec7f3c
2 changed files with 19 additions and 7 deletions
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11
README.md
View File

@ -46,10 +46,13 @@ syntax highlighting.
### Does syntax highlighting work during incremental history search? ### Does syntax highlighting work during incremental history search?
Highlighting the command line during an incremental history search Yes!
(with the `history-incremental-search-backward` widget, which is
bound by default to <kbd>Ctrl+R</kbd> in zsh's emacs keymap) requires zsh 5.3 If you're using `history-incremental-search-backward` (by default bound to <kbd>Ctrl+R</kbd>
or newer. in zsh's emacs keymap) then it works with _zsh version 5.3 and newer_.
If you're using `history-incremental-pattern-search-backward`, then syntax highlighting works
in _zsh 5.3.2 and newer_ due to [a bug in zsh](http://www.zsh.org/cgi-bin/mla/redirect?WORKERNUMBER=40285).
Under zsh 5.2 and older, the zsh-default [underlining][zshzle-Character-Highlighting] Under zsh 5.2 and older, the zsh-default [underlining][zshzle-Character-Highlighting]
of the matched portion of the buffer remains available, but zsh-syntax-highlighting's of the matched portion of the buffer remains available, but zsh-syntax-highlighting's

15
zsh-syntax-highlighting.zsh
View File

@ -53,6 +53,15 @@ fi
# Core highlighting update system # Core highlighting update system
# ------------------------------------------------------------------------------------------------- # -------------------------------------------------------------------------------------------------
# Use workaround for bug in ZSH?
# zsh-users/zsh@48cadf4 http://www.zsh.org/mla/workers//2017/msg00034.html
autoload -U is-at-least
if is-at-least 5.3.2; then
zsh_highlight__pat_static_bug=false
else
zsh_highlight__pat_static_bug=true
fi
# Array declaring active highlighters names. # Array declaring active highlighters names.
typeset -ga ZSH_HIGHLIGHT_HIGHLIGHTERS typeset -ga ZSH_HIGHLIGHT_HIGHLIGHTERS
@ -67,7 +76,9 @@ _zsh_highlight()
# Remove all highlighting in isearch, so that only the underlining done by zsh itself remains. # Remove all highlighting in isearch, so that only the underlining done by zsh itself remains.
# For details see FAQ entry 'Why does syntax highlighting not work while searching history?'. # For details see FAQ entry 'Why does syntax highlighting not work while searching history?'.
if [[ $WIDGET == zle-isearch-update ]] && ! (( $+ISEARCHMATCH_ACTIVE )); then # This disables highlighting during isearch (for reasons explained in README.md) unless zsh is new enough
# and doesn't have the 5.3.1 bug
if [[ $WIDGET == zle-isearch-update ]] && { $zsh_highlight__pat_static_bug || ! (( $+ISEARCHMATCH_ACTIVE )) }; then
region_highlight=() region_highlight=()
return $ret return $ret
fi fi
@ -394,8 +405,6 @@ add-zsh-hook preexec _zsh_highlight_preexec_hook 2>/dev/null || {
# Load zsh/parameter module if available # Load zsh/parameter module if available
zmodload zsh/parameter 2>/dev/null || true zmodload zsh/parameter 2>/dev/null || true
autoload -U is-at-least
# Initialize the array of active highlighters if needed. # Initialize the array of active highlighters if needed.
[[ $#ZSH_HIGHLIGHT_HIGHLIGHTERS -eq 0 ]] && ZSH_HIGHLIGHT_HIGHLIGHTERS=(main) [[ $#ZSH_HIGHLIGHT_HIGHLIGHTERS -eq 0 ]] && ZSH_HIGHLIGHT_HIGHLIGHTERS=(main)