mirror of
https://github.com/zsh-users/zsh-syntax-highlighting.git
synced 2025-02-13 10:05:31 +08:00
0916794aeb
It's really annoying to have partial paths appear the same as paths to complete files. However, it is still nice to be able to highlight them. Full paths are now bold while partial paths use plain underline.
201 lines
9.0 KiB
Bash
Executable File
201 lines
9.0 KiB
Bash
Executable File
#!/usr/bin/env zsh
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# -------------------------------------------------------------------------------------------------
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# Copyright (c) 2010-2011 zsh-syntax-highlighting contributors
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without modification, are permitted
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# provided that the following conditions are met:
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#
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# * Redistributions of source code must retain the above copyright notice, this list of conditions
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# and the following disclaimer.
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# * Redistributions in binary form must reproduce the above copyright notice, this list of
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# conditions and the following disclaimer in the documentation and/or other materials provided
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# with the distribution.
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# * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
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# may be used to endorse or promote products derived from this software without specific prior
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# written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
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# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
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# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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# -------------------------------------------------------------------------------------------------
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# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
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# vim: ft=zsh sw=2 ts=2 et
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# -------------------------------------------------------------------------------------------------
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# Define default styles.
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: ${ZSH_HIGHLIGHT_STYLES[default]:=none}
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: ${ZSH_HIGHLIGHT_STYLES[unknown-token]:=fg=red,bold}
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: ${ZSH_HIGHLIGHT_STYLES[reserved-word]:=fg=yellow}
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: ${ZSH_HIGHLIGHT_STYLES[alias]:=fg=green}
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: ${ZSH_HIGHLIGHT_STYLES[builtin]:=fg=green}
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: ${ZSH_HIGHLIGHT_STYLES[function]:=fg=green}
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: ${ZSH_HIGHLIGHT_STYLES[command]:=fg=green}
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: ${ZSH_HIGHLIGHT_STYLES[precommand]:=fg=green,underline}
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: ${ZSH_HIGHLIGHT_STYLES[commandseparator]:=none}
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: ${ZSH_HIGHLIGHT_STYLES[hashed-command]:=fg=green}
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: ${ZSH_HIGHLIGHT_STYLES[path]:=underline,bold}
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: ${ZSH_HIGHLIGHT_STYLES[partial-path]:=underline}
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: ${ZSH_HIGHLIGHT_STYLES[globbing]:=fg=blue}
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: ${ZSH_HIGHLIGHT_STYLES[history-expansion]:=fg=blue}
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: ${ZSH_HIGHLIGHT_STYLES[single-hyphen-option]:=none}
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: ${ZSH_HIGHLIGHT_STYLES[double-hyphen-option]:=none}
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: ${ZSH_HIGHLIGHT_STYLES[back-quoted-argument]:=none}
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: ${ZSH_HIGHLIGHT_STYLES[single-quoted-argument]:=fg=yellow}
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: ${ZSH_HIGHLIGHT_STYLES[double-quoted-argument]:=fg=yellow}
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: ${ZSH_HIGHLIGHT_STYLES[dollar-double-quoted-argument]:=fg=cyan}
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: ${ZSH_HIGHLIGHT_STYLES[back-double-quoted-argument]:=fg=cyan}
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: ${ZSH_HIGHLIGHT_STYLES[assign]:=none}
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# Whether the highlighter should be called or not.
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_zsh_highlight_main_highlighter_predicate()
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{
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_zsh_highlight_buffer_modified
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}
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# Main syntax highlighting function.
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_zsh_highlight_main_highlighter()
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{
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emulate -L zsh
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setopt localoptions extendedglob bareglobqual
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local start_pos=0 end_pos highlight_glob=true new_expression=true arg style
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typeset -a ZSH_HIGHLIGHT_TOKENS_COMMANDSEPARATOR
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typeset -a ZSH_HIGHLIGHT_TOKENS_PRECOMMANDS
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typeset -a ZSH_HIGHLIGHT_TOKENS_FOLLOWED_BY_COMMANDS
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region_highlight=()
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ZSH_HIGHLIGHT_TOKENS_COMMANDSEPARATOR=(
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'|' '||' ';' '&' '&&'
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)
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ZSH_HIGHLIGHT_TOKENS_PRECOMMANDS=(
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'builtin' 'command' 'exec' 'nocorrect' 'noglob' 'sudo'
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)
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# Tokens that are always immediately followed by a command.
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ZSH_HIGHLIGHT_TOKENS_FOLLOWED_BY_COMMANDS=(
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$ZSH_HIGHLIGHT_TOKENS_COMMANDSEPARATOR $ZSH_HIGHLIGHT_TOKENS_PRECOMMANDS
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)
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for arg in ${(z)BUFFER}; do
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local substr_color=0
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[[ $start_pos -eq 0 && $arg = 'noglob' ]] && highlight_glob=false
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((start_pos+=${#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 $new_expression; then
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new_expression=false
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if [[ -n ${(M)ZSH_HIGHLIGHT_TOKENS_PRECOMMANDS:#"$arg"} ]]; then
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style=$ZSH_HIGHLIGHT_STYLES[precommand]
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else
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res=$(LC_ALL=C builtin type -w $arg 2>/dev/null)
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case $res in
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*': reserved') style=$ZSH_HIGHLIGHT_STYLES[reserved-word];;
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*': alias') style=$ZSH_HIGHLIGHT_STYLES[alias]
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local aliased_command="${"$(alias $arg)"#*=}"
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[[ -n ${(M)ZSH_HIGHLIGHT_TOKENS_FOLLOWED_BY_COMMANDS:#"$aliased_command"} && -z ${(M)ZSH_HIGHLIGHT_TOKENS_FOLLOWED_BY_COMMANDS:#"$arg"} ]] && ZSH_HIGHLIGHT_TOKENS_FOLLOWED_BY_COMMANDS+=($arg)
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;;
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*': builtin') style=$ZSH_HIGHLIGHT_STYLES[builtin];;
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*': function') style=$ZSH_HIGHLIGHT_STYLES[function];;
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*': command') style=$ZSH_HIGHLIGHT_STYLES[command];;
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*': hashed') style=$ZSH_HIGHLIGHT_STYLES[hashed-command];;
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*) if _zsh_highlight_main_highlighter_check_assign; then
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style=$ZSH_HIGHLIGHT_STYLES[assign]
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new_expression=true
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elif _zsh_highlight_main_highlighter_check_path; then
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style=$ZSH_HIGHLIGHT_STYLES[path]
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elif _zsh_highlight_main_highlighter_check_partial_path; then
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style=$ZSH_HIGHLIGHT_STYLES[partial-path]
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elif [[ $arg[0,1] = $histchars[0,1] ]]; then
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style=$ZSH_HIGHLIGHT_STYLES[history-expansion]
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else
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style=$ZSH_HIGHLIGHT_STYLES[unknown-token]
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fi
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;;
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esac
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fi
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else
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case $arg in
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'--'*) style=$ZSH_HIGHLIGHT_STYLES[double-hyphen-option];;
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'-'*) style=$ZSH_HIGHLIGHT_STYLES[single-hyphen-option];;
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"'"*"'") style=$ZSH_HIGHLIGHT_STYLES[single-quoted-argument];;
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'"'*'"') style=$ZSH_HIGHLIGHT_STYLES[double-quoted-argument]
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region_highlight+=("$start_pos $end_pos $style")
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_zsh_highlight_main_highlighter_highlight_string
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substr_color=1
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;;
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'`'*'`') style=$ZSH_HIGHLIGHT_STYLES[back-quoted-argument];;
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*"*"*) $highlight_glob && style=$ZSH_HIGHLIGHT_STYLES[globbing] || style=$ZSH_HIGHLIGHT_STYLES[default];;
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*) if _zsh_highlight_main_highlighter_check_path; then
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style=$ZSH_HIGHLIGHT_STYLES[path]
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elif _zsh_highlight_main_highlighter_check_partial_path; then
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style=$ZSH_HIGHLIGHT_STYLES[partial-path]
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elif [[ $arg[0,1] = $histchars[0,1] ]]; then
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style=$ZSH_HIGHLIGHT_STYLES[history-expansion]
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elif [[ -n ${(M)ZSH_HIGHLIGHT_TOKENS_COMMANDSEPARATOR:#"$arg"} ]]; then
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style=$ZSH_HIGHLIGHT_STYLES[commandseparator]
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else
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style=$ZSH_HIGHLIGHT_STYLES[default]
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fi
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;;
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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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[[ -n ${(M)ZSH_HIGHLIGHT_TOKENS_FOLLOWED_BY_COMMANDS:#"$arg"} ]] && new_expression=true
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start_pos=$end_pos
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done
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}
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# Check if the argument is variable assignment
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_zsh_highlight_main_highlighter_check_assign()
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{
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setopt localoptions extended_glob
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[[ ${(Q)arg} == [[:alpha:]_]([[:alnum:]_])#=* ]]
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}
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# Check if the argument is a path.
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_zsh_highlight_main_highlighter_check_path()
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{
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setopt localoptions nonomatch
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local expanded_path; : ${expanded_path:=${(Q)~arg}}
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[[ -z $expanded_path ]] && return 1
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[[ -e $expanded_path ]] && return 0
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return 1
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}
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# Check if the argument is a partial path.
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_zsh_highlight_main_highlighter_check_partial_path()
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{
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setopt localoptions nonomatch
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local expanded_path; : ${expanded_path:=${(Q)~arg}}
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[[ -z $expanded_path ]] && return 1
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[[ -e $expanded_path ]] && return 0
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[[ ! -e ${expanded_path:h} ]] && return 1
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[[ ${BUFFER[1]} != "-" && ${#BUFFER} == $end_pos && -n $(print ${expanded_path}*(N)) ]] && return 0
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return 1
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}
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# Highlight special chars inside double-quoted strings
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_zsh_highlight_main_highlighter_highlight_string()
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{
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setopt localoptions noksharrays
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local i j k style
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# Starting quote is at 1, so start parsing at offset 2 in the string.
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for (( i = 2 ; i < end_pos - start_pos ; i += 1 )) ; do
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(( j = i + start_pos - 1 ))
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(( k = j + 1 ))
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case "$arg[$i]" in
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'$') style=$ZSH_HIGHLIGHT_STYLES[dollar-double-quoted-argument];;
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"\\") style=$ZSH_HIGHLIGHT_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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