2010-12-25 12:33:08 -05:00
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#!/usr/bin/env zsh
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# Copyleft 2010 zsh-syntax-highlighting contributors
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2010-12-25 12:47:12 -05:00
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# http://github.com/nicoulaj/zsh-syntax-highlighting
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2010-12-25 12:33:08 -05:00
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# All wrongs reserved.
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# Token types styles.
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# See http://zsh.sourceforge.net/Doc/Release/Zsh-Line-Editor.html#SEC135
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2010-12-30 12:35:28 -05:00
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typeset -A ZSH_SYNTAX_HIGHLIGHTING_STYLES
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ZSH_SYNTAX_HIGHLIGHTING_STYLES=(
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default 'none'
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unknown-token 'fg=red,bold'
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reserved-word 'fg=yellow,bold'
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alias 'fg=green,bold'
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builtin 'fg=cyan,bold'
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function 'fg=blue,bold'
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command 'fg=green,bold'
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path 'fg=white,underline'
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globbing 'fg=blue,bold'
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single-hyphen-option 'fg=yellow'
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double-hyphen-option 'fg=yellow'
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single-quoted-argument 'fg=yellow'
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double-quoted-argument 'fg=yellow'
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dollar-double-quoted-argument 'fg=cyan'
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back-quoted-argument 'fg=cyan,bold'
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back-double-quoted-argument 'fg=magenta'
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)
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2010-12-25 12:33:08 -05:00
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2010-12-30 12:53:42 -05:00
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# Tokens that are always followed by a command.
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ZSH_HIGHLIGHT_TOKENS_FOLLOWED_BY_COMMANDS=(
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'|'
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'||'
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';'
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'&'
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'&&'
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'sudo'
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'start'
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'time'
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'strace'
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'noglob'
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'command'
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'builtin'
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)
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# ZLE events that trigger an update of the highlighting.
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ZSH_HIGHLIGHT_ZLE_UPDATE_EVENTS=(
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self-insert
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magic-space
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delete-char
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backward-delete-char
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kill-word
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backward-kill-word
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up-line-or-history
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down-line-or-history
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beginning-of-history
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end-of-history
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undo
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redo
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yank
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)
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2010-12-25 12:33:08 -05:00
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2010-12-30 12:53:42 -05:00
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# Check if the argument is a path.
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_zsh_check-path() {
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2010-12-30 11:05:00 -05:00
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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 $arg*(N)) ]] && return 0
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return 1
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2010-12-25 16:38:07 -05:00
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}
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2010-12-30 12:53:42 -05:00
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# Highlight special chars inside double-quoted strings
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_zsh_highlight-string() {
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2010-12-30 11:05:00 -05:00
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local i
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local j
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local k
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local c
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for (( i = 0 ; i < end_pos - start_pos ; i += 1 )) ; do
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(( j = i + start_pos - 1 ))
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(( k = j + 1 ))
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c="$arg[$i]"
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2010-12-30 12:35:28 -05:00
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[[ "$c" = '$' ]] && region_highlight+=("$j $k $ZSH_SYNTAX_HIGHLIGHTING_STYLES[dollar-double-quoted-argument]")
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if [[ "$c" = "\\" ]] ; then
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(( k = k + 1 ))
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region_highlight+=("$j $k $ZSH_SYNTAX_HIGHLIGHTING_STYLES[back-double-quoted-argument]")
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2010-12-30 11:05:00 -05:00
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fi
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done
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2010-12-27 06:57:05 -05:00
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}
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2010-12-25 12:33:08 -05:00
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# Recolorize the current ZLE buffer.
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_zsh_highlight-zle-buffer() {
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2010-12-30 10:13:48 -05:00
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setopt localoptions extendedglob bareglobqual
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2010-12-25 12:33:08 -05:00
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region_highlight=()
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colorize=true
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start_pos=0
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for arg in ${(z)BUFFER}; do
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2010-12-27 06:57:05 -05:00
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local substr_color=0
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2010-12-26 02:51:38 -05:00
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((start_pos+=${#BUFFER[$start_pos+1,-1]}-${#${BUFFER[$start_pos+1,-1]##[[:space:]]#}}))
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2010-12-25 12:33:08 -05:00
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((end_pos=$start_pos+${#arg}))
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if $colorize; then
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colorize=false
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2010-12-26 19:48:58 -05:00
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res=$(LC_ALL=C builtin type -w $arg 2>/dev/null)
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2010-12-25 12:33:08 -05:00
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case $res in
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*': reserved') style=$ZSH_SYNTAX_HIGHLIGHTING_STYLES[reserved-word];;
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2010-12-30 13:18:17 -05:00
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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=$ZSH_SYNTAX_HIGHLIGHTING_STYLES[command];;
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2010-12-30 12:53:42 -05:00
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*) _zsh_check-path && style=$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=$ZSH_SYNTAX_HIGHLIGHTING_STYLES[double-quoted-argument]
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2010-12-30 11:05:00 -05:00
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region_highlight+=("$start_pos $end_pos $style")
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2010-12-30 12:53:42 -05:00
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_zsh_highlight-string
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2010-12-30 11:05:00 -05:00
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substr_color=1
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;;
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2010-12-30 12:35:28 -05:00
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'`'*'`') style=$ZSH_SYNTAX_HIGHLIGHTING_STYLES[back-quoted-argument];;
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*"*"*) style=$ZSH_SYNTAX_HIGHLIGHTING_STYLES[globbing];;
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2010-12-30 12:53:42 -05:00
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*) _zsh_check-path && style=$ZSH_SYNTAX_HIGHLIGHTING_STYLES[path] || style=$ZSH_SYNTAX_HIGHLIGHTING_STYLES[default];;
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2010-12-30 11:05:00 -05:00
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esac
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2010-12-25 12:33:08 -05:00
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fi
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2010-12-27 06:57:05 -05:00
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[[ $substr_color = 0 ]] && region_highlight+=("$start_pos $end_pos $style")
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2010-12-30 12:35:28 -05:00
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[[ ${${ZSH_HIGHLIGHT_TOKENS_FOLLOWED_BY_COMMANDS[(r)${arg//|/\|}]:-}:+yes} = 'yes' ]] && colorize=true
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2010-12-25 12:33:08 -05:00
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start_pos=$end_pos
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done
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}
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2010-12-30 12:53:42 -05:00
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# Bind ZLE events to highlighting function.
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for f in $ZSH_HIGHLIGHT_ZLE_UPDATE_EVENTS; do
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eval "$f() { zle .$f && _zsh_highlight-zle-buffer } ; zle -N $f"
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2010-12-25 12:33:08 -05:00
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done
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2010-12-30 12:53:42 -05:00
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# Special treatment for completion/expansion events:
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# Create an expansion widget which mimics the original "expand-or-complete" (you can see the default setup using "zle -l -L"),
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2010-12-25 12:33:08 -05:00
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# use the orig-expand-or-complete inside the colorize function (for some reason, using the ".expand-or-complete" widget doesn't work the same)
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2010-12-30 12:53:42 -05:00
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zle -C orig-expand-or-complete .expand-or-complete _main_complete
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expand-or-complete() { builtin zle orig-expand-or-complete && _zsh_highlight-zle-buffer }
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2010-12-25 12:33:08 -05:00
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zle -N expand-or-complete
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