mirror of
https://github.com/zsh-users/zsh-syntax-highlighting.git
synced 2025-04-17 11:35:32 +08:00
105 lines
4.2 KiB
Bash
Executable File
105 lines
4.2 KiB
Bash
Executable File
#!/usr/bin/env zsh
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# Copyleft 2010 zsh-syntax-highlighting contributors
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# http://github.com/nicoulaj/zsh-syntax-highlighting
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# All wrongs reserved.
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# vim: ft=zsh sw=2 ts=2 et
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# ZLE highlight types.
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zle_highlight=(
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special:$ZSH_SYNTAX_HIGHLIGHTING_STYLES[special]
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isearch:$ZSH_SYNTAX_HIGHLIGHTING_STYLES[isearch]
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)
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# Check if the argument is a path.
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_zsh_check-path() {
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[[ -z $arg ]] && return 1
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[[ -e $arg ]] && return 0
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[[ ! -e ${arg:h} ]] && return 1
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[[ ${#BUFFER} == $end_pos && -n $(print $arg*(N)) ]] && return 0
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return 1
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}
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# Highlight special chars inside double-quoted strings
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_zsh_highlight-string() {
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setopt localoptions noksharrays
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local i j k style
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# Starting quote is at 1, so start parsing at offset 2 in the string.
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for (( i = 2 ; i < end_pos - start_pos ; i += 1 )) ; do
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(( j = i + start_pos - 1 ))
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(( k = j + 1 ))
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case "$arg[$i]" in
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'$') style=$ZSH_SYNTAX_HIGHLIGHTING_STYLES[dollar-double-quoted-argument];;
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"\\") style=$ZSH_SYNTAX_HIGHLIGHTING_STYLES[back-double-quoted-argument]
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(( k += 1 )) # Color following char too.
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(( i += 1 )) # Skip parsing the escaped char.
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;;
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*) continue;;
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esac
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region_highlight+=("$j $k $style")
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done
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}
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# Recolorize the current ZLE buffer.
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_zsh_highlight-zle-buffer() {
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setopt localoptions extendedglob bareglobqual
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local colorize=true
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local start_pos=0
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local end_pos arg style
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region_highlight=()
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for arg in ${(z)BUFFER}; do
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local substr_color=0
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((start_pos+=${#BUFFER[$start_pos+1,-1]}-${#${BUFFER[$start_pos+1,-1]##[[:space:]]#}}))
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((end_pos=$start_pos+${#arg}))
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if $colorize; then
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colorize=false
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res=$(LC_ALL=C builtin type -w $arg 2>/dev/null)
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case $res in
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*': reserved') style=$ZSH_SYNTAX_HIGHLIGHTING_STYLES[reserved-word];;
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*': alias') style=$ZSH_SYNTAX_HIGHLIGHTING_STYLES[alias]
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local aliased_command=${"$(alias $arg)"#*=}
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[[ ${${ZSH_HIGHLIGHT_TOKENS_FOLLOWED_BY_COMMANDS[(r)$aliased_command]:-}:+yes} = 'yes' ]] && ZSH_HIGHLIGHT_TOKENS_FOLLOWED_BY_COMMANDS+=($arg)
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;;
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*': builtin') style=$ZSH_SYNTAX_HIGHLIGHTING_STYLES[builtin];;
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*': function') style=$ZSH_SYNTAX_HIGHLIGHTING_STYLES[function];;
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*': command') style=$ZSH_SYNTAX_HIGHLIGHTING_STYLES[command];;
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*) _zsh_check-path && style=$ZSH_SYNTAX_HIGHLIGHTING_STYLES[path] || style=$ZSH_SYNTAX_HIGHLIGHTING_STYLES[unknown-token];;
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esac
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else
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case $arg in
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'--'*) style=$ZSH_SYNTAX_HIGHLIGHTING_STYLES[double-hyphen-option];;
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'-'*) style=$ZSH_SYNTAX_HIGHLIGHTING_STYLES[single-hyphen-option];;
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"'"*"'") style=$ZSH_SYNTAX_HIGHLIGHTING_STYLES[single-quoted-argument];;
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'"'*'"') style=$ZSH_SYNTAX_HIGHLIGHTING_STYLES[double-quoted-argument]
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region_highlight+=("$start_pos $end_pos $style")
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_zsh_highlight-string
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substr_color=1
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;;
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'`'*'`') style=$ZSH_SYNTAX_HIGHLIGHTING_STYLES[back-quoted-argument];;
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*"*"*) style=$ZSH_SYNTAX_HIGHLIGHTING_STYLES[globbing];;
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*) _zsh_check-path && style=$ZSH_SYNTAX_HIGHLIGHTING_STYLES[path] || style=$ZSH_SYNTAX_HIGHLIGHTING_STYLES[default];;
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esac
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fi
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[[ $substr_color = 0 ]] && region_highlight+=("$start_pos $end_pos $style")
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[[ ${${ZSH_HIGHLIGHT_TOKENS_FOLLOWED_BY_COMMANDS[(r)${arg//|/\|}]:-}:+yes} = 'yes' ]] && colorize=true
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start_pos=$end_pos
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done
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}
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# Special treatment for completion/expansion events:
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# For each *complete* function, we create a widget which mimics the original
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# and use this orig-* version inside the new colorized zle function (the dot
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# idiom used for all others doesn't work right for these functions for some
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# reason). You can see the default setup using "zle -l -L".
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# Bind ZLE events to highlighting function.
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for f in $ZSH_HIGHLIGHT_ZLE_UPDATE_EVENTS; do
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case $f in
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*complete*)
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eval "zle -C orig-$f .$f _main_complete ; $f() { builtin zle orig-$f && _zsh_highlight-zle-buffer } ; zle -N $f"
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;;
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*)
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eval "$f() { builtin zle .$f && _zsh_highlight-zle-buffer } ; zle -N $f"
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;;
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esac
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done
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