mirror of
https://github.com/zsh-users/zsh-syntax-highlighting.git
synced 2024-09-19 05:41:15 +02:00
5f80147c55
The effect of the bug was that «-:» was considered an option taking an argument (see the parsing of the associative array in lines 692-693). As to preventing recurrence, add a warning comment. We _could_ change the separator from colon to something else, but colon is idiomatic for this use (see, e.g., passwd(5)), and the problem will be unlikely to recur if and when we add a third field to the assoc's values. (For example, jexec(1), chroot(1), and even ssh(1) would benefit from a third field saying how many positional arguments to skip before the positional argument that's to be the command word — though in the last two cases, specifying an "inner" command is optional.)
1401 lines
53 KiB
Bash
1401 lines
53 KiB
Bash
# -------------------------------------------------------------------------------------------------
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# Copyright (c) 2010-2018 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[suffix-alias]:=fg=green,underline}
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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[path]:=underline}
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: ${ZSH_HIGHLIGHT_STYLES[path_pathseparator]:=}
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: ${ZSH_HIGHLIGHT_STYLES[path_prefix_pathseparator]:=}
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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[command-substitution]:=none}
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: ${ZSH_HIGHLIGHT_STYLES[command-substitution-delimiter]:=fg=magenta}
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: ${ZSH_HIGHLIGHT_STYLES[process-substitution]:=none}
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: ${ZSH_HIGHLIGHT_STYLES[process-substitution-delimiter]:=fg=magenta}
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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[back-quoted-argument-delimiter]:=fg=magenta}
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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-quoted-argument]:=fg=yellow}
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: ${ZSH_HIGHLIGHT_STYLES[rc-quote]:=fg=cyan}
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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[back-dollar-quoted-argument]:=fg=cyan}
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: ${ZSH_HIGHLIGHT_STYLES[assign]:=none}
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: ${ZSH_HIGHLIGHT_STYLES[redirection]:=none}
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: ${ZSH_HIGHLIGHT_STYLES[comment]:=fg=black,bold}
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: ${ZSH_HIGHLIGHT_STYLES[named-fd]:=none}
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: ${ZSH_HIGHLIGHT_STYLES[arg0]:=fg=green}
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# Whether the highlighter should be called or not.
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_zsh_highlight_highlighter_main_predicate()
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{
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# may need to remove path_prefix highlighting when the line ends
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[[ $WIDGET == zle-line-finish ]] || _zsh_highlight_buffer_modified
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}
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# Helper to deal with tokens crossing line boundaries.
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_zsh_highlight_main_add_region_highlight() {
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integer start=$1 end=$2
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shift 2
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(( highlighted_alias )) && return
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(( in_alias )) && highlighted_alias=1
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# The calculation was relative to $buf but region_highlight is relative to $BUFFER.
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(( start += buf_offset ))
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(( end += buf_offset ))
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list_highlights+=($start $end $1)
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}
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_zsh_highlight_main_add_many_region_highlights() {
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for 1 2 3; do
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_zsh_highlight_main_add_region_highlight $1 $2 $3
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done
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}
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_zsh_highlight_main_calculate_fallback() {
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local -A fallback_of; fallback_of=(
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alias arg0
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suffix-alias arg0
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builtin arg0
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function arg0
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command arg0
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precommand arg0
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hashed-command arg0
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arg0_\* arg0
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path_prefix path
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# The path separator fallback won't ever be used, due to the optimisation
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# in _zsh_highlight_main_highlighter_highlight_path_separators().
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path_pathseparator path
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path_prefix_pathseparator path_prefix
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single-quoted-argument{-unclosed,}
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double-quoted-argument{-unclosed,}
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dollar-quoted-argument{-unclosed,}
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back-quoted-argument{-unclosed,}
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command-substitution{-quoted,,-unquoted,}
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command-substitution-delimiter{-quoted,,-unquoted,}
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command-substitution{-delimiter,}
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process-substitution{-delimiter,}
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back-quoted-argument{-delimiter,}
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)
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local needle=$1 value
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reply=($1)
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while [[ -n ${value::=$fallback_of[(k)$needle]} ]]; do
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unset "fallback_of[$needle]" # paranoia against infinite loops
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reply+=($value)
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needle=$value
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done
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}
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# Get the type of a command.
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#
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# Uses the zsh/parameter module if available to avoid forks, and a
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# wrapper around 'type -w' as fallback.
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#
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# If $2 is 0, do not consider aliases.
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#
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# The result will be stored in REPLY.
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_zsh_highlight_main__type() {
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integer -r aliases_allowed=${2-1}
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# We won't cache replies of anything that exists as an alias at all, to
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# ensure the cached value is correct regardless of $aliases_allowed.
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#
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# ### We probably _should_ cache them in a cache that's keyed on the value of
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# ### $aliases_allowed, on the assumption that aliases are the common case.
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integer may_cache=1
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# Cache lookup
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if (( $+_zsh_highlight_main__command_type_cache )); then
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REPLY=$_zsh_highlight_main__command_type_cache[(e)$1]
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if [[ -n "$REPLY" ]]; then
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return
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fi
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fi
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# Main logic
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if (( $#options_to_set )); then
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setopt localoptions $options_to_set;
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fi
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unset REPLY
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if zmodload -e zsh/parameter; then
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if (( $+aliases[(e)$1] )); then
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may_cache=0
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fi
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if (( $+aliases[(e)$1] )) && (( aliases_allowed )); then
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REPLY=alias
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elif [[ $1 == *.* && -n ${1%.*} ]] && (( $+saliases[(e)${1##*.}] )); then
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REPLY='suffix alias'
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elif (( $reswords[(Ie)$1] )); then
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REPLY=reserved
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elif (( $+functions[(e)$1] )); then
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REPLY=function
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elif (( $+builtins[(e)$1] )); then
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REPLY=builtin
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elif (( $+commands[(e)$1] )); then
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REPLY=command
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# None of the special hashes had a match, so fall back to 'type -w', for
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# forward compatibility with future versions of zsh that may add new command
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# types.
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#
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# zsh 5.2 and older have a bug whereby running 'type -w ./sudo' implicitly
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# runs 'hash ./sudo=/usr/local/bin/./sudo' (assuming /usr/local/bin/sudo
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# exists and is in $PATH). Avoid triggering the bug, at the expense of
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# falling through to the $() below, incurring a fork. (Issue #354.)
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#
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# The first disjunct mimics the isrelative() C call from the zsh bug.
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elif { [[ $1 != */* ]] || is-at-least 5.3 } &&
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# Add a subshell to avoid a zsh upstream bug; see issue #606.
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# ### Remove the subshell when we stop supporting zsh 5.7.1 (I assume 5.8 will have the bugfix).
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! (builtin type -w -- $1) >/dev/null 2>&1; then
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REPLY=none
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fi
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fi
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if ! (( $+REPLY )); then
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# zsh/parameter not available or had no matches.
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#
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# Note that 'type -w' will run 'rehash' implicitly.
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#
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# We 'unalias' in a subshell, so the parent shell is not affected.
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#
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# The colon command is there just to avoid a command substitution that
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# starts with an arithmetic expression [«((…))» as the first thing inside
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# «$(…)»], which is area that has had some parsing bugs before 5.6
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# (approximately).
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REPLY="${$(:; (( aliases_allowed )) || unalias -- $1 2>/dev/null; LC_ALL=C builtin type -w -- $1 2>/dev/null)##*: }"
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if [[ $REPLY == 'alias' ]]; then
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may_cache=0
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fi
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fi
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# Cache population
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if (( may_cache )) && (( $+_zsh_highlight_main__command_type_cache )); then
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_zsh_highlight_main__command_type_cache[(e)$1]=$REPLY
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fi
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[[ -n $REPLY ]]
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return $?
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}
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# Checks whether $1 is something that can be run.
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#
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# Return 0 if runnable, 1 if not runnable, 2 if trouble.
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_zsh_highlight_main__is_runnable() {
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if _zsh_highlight_main__type "$1"; then
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[[ $REPLY != none ]]
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else
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return 2
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fi
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}
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# Check whether the first argument is a redirection operator token.
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# Report result via the exit code.
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_zsh_highlight_main__is_redirection() {
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# A redirection operator token:
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# - starts with an optional single-digit number;
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# - then, has a '<' or '>' character;
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# - is not a process substitution [<(...) or >(...)].
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# - is not a numeric glob <->
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[[ $1 == (<0-9>|)(\<|\>)* ]] && [[ $1 != (\<|\>)$'\x28'* ]] && [[ $1 != *'<'*'-'*'>'* ]]
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}
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# Resolve alias.
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#
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# Takes a single argument.
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#
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# The result will be stored in REPLY.
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_zsh_highlight_main__resolve_alias() {
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if zmodload -e zsh/parameter; then
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REPLY=${aliases[$arg]}
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else
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REPLY="${"$(alias -- $arg)"#*=}"
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fi
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}
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# Check that the top of $braces_stack has the expected value. If it does, set
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# the style according to $2; otherwise, set style=unknown-token.
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#
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# $1: character expected to be at the top of $braces_stack
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# $2: optional assignment to style it if matches
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# return value is 0 if there is a match else 1
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_zsh_highlight_main__stack_pop() {
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if [[ $braces_stack[1] == $1 ]]; then
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braces_stack=${braces_stack:1}
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if (( $+2 )); then
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style=$2
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fi
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return 0
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else
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style=unknown-token
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return 1
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fi
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}
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# Main syntax highlighting function.
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_zsh_highlight_highlighter_main_paint()
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{
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setopt localoptions extendedglob
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# At the PS3 prompt and in vared, highlight nothing.
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#
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# (We can't check this in _zsh_highlight_highlighter_main_predicate because
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# if the predicate returns false, the previous value of region_highlight
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# would be reused.)
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if [[ $CONTEXT == (select|vared) ]]; then
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return
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fi
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typeset -a ZSH_HIGHLIGHT_TOKENS_COMMANDSEPARATOR
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typeset -a ZSH_HIGHLIGHT_TOKENS_CONTROL_FLOW
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local -a options_to_set reply # used in callees
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local REPLY
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# $flags_with_argument is a set of letters, corresponding to the option letters
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# that would be followed by a colon in a getopts specification.
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local flags_with_argument
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# $flags_sans_argument is a set of letters, corresponding to the option letters
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# that wouldn't be followed by a colon in a getopts specification.
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local flags_sans_argument
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# $precommand_options maps precommand name to values of $flags_with_argument and
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# $flags_sans_argument for that precommand, joined by a colon. (The value is NOT
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# a getopt(3) spec, although it resembles one.)
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#
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# Currently, setting $flags_sans_argument is only important for commands that
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# have a non-empty $flags_with_argument; see test-data/precommand4.zsh.
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local -A precommand_options
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precommand_options=(
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# Precommand modifiers as of zsh 5.6.2 cf. zshmisc(1).
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'-' ''
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'builtin' ''
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'command' :pvV
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'exec' a:cl
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'nocorrect' ''
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'noglob' ''
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'doas' aCu:Lns # as of OpenBSD's doas(1) dated September 4, 2016
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'nice' n: # as of current POSIX spec
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'pkexec' '' # doesn't take short options; immune to #121 because it's usually not passed --option flags
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'sudo' Cgprtu:AEHKPSVbhiklnsv # as of sudo 1.8.21p2
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'stdbuf' ioe:
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)
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if [[ $zsyh_user_options[ignorebraces] == on || ${zsyh_user_options[ignoreclosebraces]:-off} == on ]]; then
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local right_brace_is_recognised_everywhere=false
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else
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local right_brace_is_recognised_everywhere=true
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fi
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if [[ $zsyh_user_options[pathdirs] == on ]]; then
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options_to_set+=( PATH_DIRS )
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fi
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ZSH_HIGHLIGHT_TOKENS_COMMANDSEPARATOR=(
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'|' '||' ';' '&' '&&'
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'|&'
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'&!' '&|'
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# ### 'case' syntax, but followed by a pattern, not by a command
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# ';;' ';&' ';|'
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)
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# Tokens that, at (naively-determined) "command position", are followed by
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# a de jure command position. All of these are reserved words.
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ZSH_HIGHLIGHT_TOKENS_CONTROL_FLOW=(
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$'\x7b' # block
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$'\x28' # subshell
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'()' # anonymous function
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'while'
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'until'
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'if'
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'then'
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'elif'
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'else'
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'do'
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'time'
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'coproc'
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'!' # reserved word; unrelated to $histchars[1]
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)
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_zsh_highlight_main_highlighter_highlight_list -$#PREBUFFER '' 1 "$PREBUFFER$BUFFER"
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# end is a reserved word
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local start end_ style
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for start end_ style in $reply; do
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(( start >= end_ )) && { print -r -- >&2 "zsh-syntax-highlighting: BUG: _zsh_highlight_highlighter_main_paint: start($start) >= end($end_)"; return }
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(( end_ <= 0 )) && continue
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(( start < 0 )) && start=0 # having start<0 is normal with e.g. multiline strings
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_zsh_highlight_main_calculate_fallback $style
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_zsh_highlight_add_highlight $start $end_ $reply
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done
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}
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# $1 is the offset of $4 from the parent buffer. Added to the returned highlights.
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# $2 is the initial braces_stack (for a closing paren).
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# $3 is 1 if $4 contains the end of $BUFFER, else 0.
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# $4 is the buffer to highlight.
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# Returns:
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# $REPLY: $buf[REPLY] is the last character parsed.
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# $reply is an array of region_highlight additions.
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# exit code is 0 if the braces_stack is empty, 1 otherwise.
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_zsh_highlight_main_highlighter_highlight_list()
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{
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integer start_pos end_pos=0 buf_offset=$1 has_end=$3
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# last_alias is the last alias arg (lhs) expanded (if in an alias).
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# This allows for expanding alias ls='ls -l' while avoiding loops.
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local arg buf=$4 highlight_glob=true last_alias style
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local in_array_assignment=false # true between 'a=(' and the matching ')'
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# highlighted_alias is 1 when the alias arg has been highlighted with a non-alias style.
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# E.g. alias x=ls; x has been highlighted as alias AND command.
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# in_alias is equal to the number of shifts needed until arg=args[1] pops an
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# arg from BUFFER and not added by an alias.
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integer highlighted_alias=0 in_alias=0 len=$#buf
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local -a match mbegin mend list_highlights
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# seen_alias is a map of aliases already seen to avoid loops like alias a=b b=a
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local -A seen_alias
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# Pattern for parameter names
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readonly parameter_name_pattern='([A-Za-z_][A-Za-z0-9_]*|[0-9]+)'
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list_highlights=()
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# "R" for round
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# "Q" for square
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# "Y" for curly
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# "T" for [[ ]]
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# "S" for $( )
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# "D" for do/done
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# "$" for 'end' (matches 'foreach' always; also used with cshjunkiequotes in repeat/while)
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# "?" for 'if'/'fi'; also checked by 'elif'/'else'
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# ":" for 'then'
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local braces_stack=$2
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# State machine
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#
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# The states are:
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# - :start: Command word
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# - :start_of_pipeline: Start of a 'pipeline' as defined in zshmisc(1).
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# Only valid when :start: is present
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# - :sudo_opt: A leading-dash option to a precommand, whether it takes an
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# argument or not. (Example: sudo's "-u" or "-i".)
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# - :sudo_arg: The argument to a precommand's leading-dash option,
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# when given as a separate word; i.e., "foo" in "-u foo" (two
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# words) but not in "-ufoo" (one word).
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# - :regular: "Not a command word", and command delimiters are permitted.
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# Mainly used to detect premature termination of commands.
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# - :always: The word 'always' in the «{ foo } always { bar }» syntax.
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#
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# When the kind of a word is not yet known, $this_word / $next_word may contain
|
|
# multiple states. For example, after "sudo -i", the next word may be either
|
|
# another --flag or a command name, hence the state would include both :start:
|
|
# and :sudo_opt:.
|
|
#
|
|
# The tokens are always added with both leading and trailing colons to serve as
|
|
# word delimiters (an improvised array); [[ $x == *:foo:* ]] and x=${x//:foo:/}
|
|
# will DTRT regardless of how many elements or repetitions $x has..
|
|
#
|
|
# Handling of redirections: upon seeing a redirection token, we must stall
|
|
# the current state --- that is, the value of $this_word --- for two iterations
|
|
# (one for the redirection operator, one for the word following it representing
|
|
# the redirection target). Therefore, we set $in_redirection to 2 upon seeing a
|
|
# redirection operator, decrement it each iteration, and stall the current state
|
|
# when it is non-zero. Thus, upon reaching the next word (the one that follows
|
|
# the redirection operator and target), $this_word will still contain values
|
|
# appropriate for the word immediately following the word that preceded the
|
|
# redirection operator.
|
|
#
|
|
# The "the previous word was a redirection operator" state is not communicated
|
|
# to the next iteration via $next_word/$this_word as usual, but via
|
|
# $in_redirection. The value of $next_word from the iteration that processed
|
|
# the operator is discarded.
|
|
#
|
|
local this_word next_word=':start::start_of_pipeline:'
|
|
integer in_redirection
|
|
# Processing buffer
|
|
local proc_buf="$buf"
|
|
local -a args
|
|
if [[ $zsyh_user_options[interactivecomments] == on ]]; then
|
|
args=(${(zZ+c+)buf})
|
|
else
|
|
args=(${(z)buf})
|
|
fi
|
|
while (( $#args )); do
|
|
arg=$args[1]
|
|
shift args
|
|
if (( in_alias )); then
|
|
(( in_alias-- ))
|
|
(( in_alias == 0 )) && highlighted_alias=0 last_alias= seen_alias=()
|
|
fi
|
|
|
|
# Initialize this_word and next_word.
|
|
if (( in_redirection == 0 )); then
|
|
this_word=$next_word
|
|
next_word=':regular:'
|
|
else
|
|
# Stall $next_word.
|
|
(( --in_redirection ))
|
|
fi
|
|
|
|
# Initialize per-"simple command" [zshmisc(1)] variables:
|
|
#
|
|
# $style how to highlight $arg
|
|
# $in_array_assignment boolean flag for "between '(' and ')' of array assignment"
|
|
# $highlight_glob boolean flag for "'noglob' is in effect"
|
|
#
|
|
style=unknown-token
|
|
if [[ $this_word == *':start:'* ]]; then
|
|
in_array_assignment=false
|
|
if [[ $arg == 'noglob' ]]; then
|
|
highlight_glob=false
|
|
fi
|
|
fi
|
|
|
|
if (( in_alias == 0 )); then
|
|
# Compute the new $start_pos and $end_pos, skipping over whitespace in $buf.
|
|
[[ "$proc_buf" = (#b)(#s)(([ $'\t']|\\$'\n')#)* ]]
|
|
# The first, outer parenthesis
|
|
integer offset="${#match[1]}"
|
|
(( start_pos = end_pos + offset ))
|
|
(( end_pos = start_pos + $#arg ))
|
|
|
|
# Compute the new $proc_buf. We advance it
|
|
# (chop off characters from the beginning)
|
|
# beyond what end_pos points to, by skipping
|
|
# as many characters as end_pos was advanced.
|
|
#
|
|
# end_pos was advanced by $offset (via start_pos)
|
|
# and by $#arg. Note the `start_pos=$end_pos`
|
|
# below.
|
|
#
|
|
# As for the [,len]. We could use [,len-start_pos+offset]
|
|
# here, but to make it easier on eyes, we use len and
|
|
# rely on the fact that Zsh simply handles that. The
|
|
# length of proc_buf is len-start_pos+offset because
|
|
# we're chopping it to match current start_pos, so its
|
|
# length matches the previous value of start_pos.
|
|
#
|
|
# Why [,-1] is slower than [,length] isn't clear.
|
|
proc_buf="${proc_buf[offset + $#arg + 1,len]}"
|
|
fi
|
|
|
|
# Handle the INTERACTIVE_COMMENTS option.
|
|
#
|
|
# We use the (Z+c+) flag so the entire comment is presented as one token in $arg.
|
|
if [[ $zsyh_user_options[interactivecomments] == on && $arg[1] == $histchars[3] ]]; then
|
|
if [[ $this_word == *(':regular:'|':start:')* ]]; then
|
|
style=comment
|
|
else
|
|
style=unknown-token # prematurely terminated
|
|
fi
|
|
_zsh_highlight_main_add_region_highlight $start_pos $end_pos $style
|
|
# Stall this arg
|
|
in_redirection=1
|
|
continue
|
|
fi
|
|
|
|
if [[ $this_word == *:start:* ]] && ! (( in_redirection )); then
|
|
# Expand aliases.
|
|
_zsh_highlight_main__type "$arg"
|
|
local res="$REPLY"
|
|
if [[ $res == "alias" ]] && [[ $last_alias != $arg ]]; then
|
|
# Avoid looping forever on alias a=b b=c c=b, but allow alias foo='foo bar'
|
|
# Also mark insane aliases as unknown-token (cf. #263).
|
|
if (( $+seen_alias[$arg] )) || [[ $arg == ?*=* ]]; then
|
|
_zsh_highlight_main_add_region_highlight $start_pos $end_pos unknown-token
|
|
continue
|
|
fi
|
|
seen_alias[$arg]=1
|
|
last_alias=$arg
|
|
_zsh_highlight_main__resolve_alias $arg
|
|
local -a alias_args
|
|
# Elision is desired in case alias x=''
|
|
alias_args=( ${interactive_comments-${(z)REPLY}}
|
|
${interactive_comments+${(zZ+c+)REPLY}} )
|
|
args=( $alias_args $args )
|
|
if (( in_alias == 0 )); then
|
|
_zsh_highlight_main_add_region_highlight $start_pos $end_pos alias
|
|
# Add one because we will in_alias-- on the next loop iteration so
|
|
# this iteration should be considered in in_alias as well
|
|
(( in_alias += $#alias_args + 1 ))
|
|
else
|
|
# This arg is already included in the count, so no need to + 1.
|
|
(( in_alias += $#alias_args ))
|
|
fi
|
|
(( in_redirection++ )) # Stall this arg
|
|
continue
|
|
else
|
|
_zsh_highlight_main_highlighter_expand_path $arg
|
|
arg=$REPLY
|
|
_zsh_highlight_main__type "$arg" 0
|
|
res="$REPLY"
|
|
fi
|
|
fi
|
|
|
|
# Analyse the current word.
|
|
if _zsh_highlight_main__is_redirection $arg ; then
|
|
if (( in_redirection == 1 )); then
|
|
# The condition excludes the case that BUFFER='{foo}>&2' and we're on the '>&'.
|
|
_zsh_highlight_main_add_region_highlight $start_pos $end_pos unknown-token
|
|
else
|
|
in_redirection=2
|
|
_zsh_highlight_main_add_region_highlight $start_pos $end_pos redirection
|
|
fi
|
|
continue
|
|
elif [[ $arg == '{'${~parameter_name_pattern}'}' ]] && _zsh_highlight_main__is_redirection $args[1]; then
|
|
# named file descriptor: {foo}>&2
|
|
in_redirection=3
|
|
_zsh_highlight_main_add_region_highlight $start_pos $end_pos named-fd
|
|
continue
|
|
fi
|
|
|
|
# Expand parameters.
|
|
#
|
|
# ### For now, expand just '$foo' or '${foo}', possibly with braces, but with
|
|
# ### no other features of the parameter expansion syntax. (No ${(x)foo},
|
|
# ### no ${foo[x]}, no ${foo:-x}.)
|
|
() {
|
|
# That's not entirely correct --- if the parameter's value happens to be a reserved
|
|
# word, the parameter expansion will be highlighted as a reserved word --- but that
|
|
# incorrectness is outweighed by the usability improvement of permitting the use of
|
|
# parameters that refer to commands, functions, and builtins.
|
|
local -a match mbegin mend
|
|
local MATCH; integer MBEGIN MEND
|
|
local parameter_name
|
|
if [[ $arg[1] == '$' ]] && [[ ${arg[2]} == '{' ]] && [[ ${arg[-1]} == '}' ]]; then
|
|
parameter_name=${${arg:2}%?}
|
|
elif [[ $arg[1] == '$' ]]; then
|
|
parameter_name=${arg:1}
|
|
fi
|
|
if [[ $res == none ]] && zmodload -e zsh/parameter &&
|
|
[[ ${parameter_name} =~ ^${~parameter_name_pattern}$ ]] &&
|
|
(( ${+parameters[(e)${MATCH}]} )) && [[ ${parameters[(e)$MATCH]} != *special* ]]
|
|
then
|
|
# Set $arg.
|
|
case ${(tP)MATCH} in
|
|
(*array*|*assoc*)
|
|
local -a words; words=( ${(P)MATCH} )
|
|
arg=${words[1]}
|
|
;;
|
|
(*)
|
|
# scalar, presumably
|
|
arg=${(P)MATCH}
|
|
;;
|
|
esac
|
|
_zsh_highlight_main__type "$arg" 0
|
|
res=$REPLY
|
|
fi
|
|
}
|
|
|
|
# Parse the sudo command line
|
|
if (( ! in_redirection )); then
|
|
if [[ $this_word == *':sudo_opt:'* ]]; then
|
|
if [[ -n $flags_with_argument ]] &&
|
|
{ [[ -n $flags_sans_argument ]] && [[ $arg == '-'[$flags_sans_argument]#[$flags_with_argument] ]] ||
|
|
[[ $arg == '-'[$flags_with_argument] ]] }; then
|
|
# Flag that requires an argument
|
|
this_word=${this_word//:start:/}
|
|
next_word=':sudo_arg:'
|
|
elif [[ -n $flags_with_argument ]] &&
|
|
{ [[ -n $flags_sans_argument ]] && [[ $arg == '-'[$flags_sans_argument]#[$flags_with_argument]* ]] ||
|
|
[[ $arg == '-'[$flags_with_argument]* ]] }; then
|
|
# Argument attached in the same word
|
|
this_word=${this_word//:start:/}
|
|
next_word+=':start:'
|
|
next_word+=':sudo_opt:'
|
|
elif [[ -n $flags_sans_argument ]] &&
|
|
[[ $arg == '-'[$flags_sans_argument]# ]]; then
|
|
# Flag that requires no argument
|
|
this_word=:sudo_opt:
|
|
next_word+=':start:'
|
|
next_word+=':sudo_opt:'
|
|
elif [[ $arg == '-'* ]]; then
|
|
# Unknown flag
|
|
this_word=:sudo_opt:
|
|
next_word+=':start:'
|
|
next_word+=':sudo_opt:'
|
|
_zsh_highlight_main_add_region_highlight $start_pos $end_pos unknown-token
|
|
continue
|
|
else
|
|
# Not an option flag; nothing to do. (If the command line is
|
|
# syntactically valid, ${this_word//:sudo_opt:/} should be
|
|
# non-empty now.)
|
|
this_word=${this_word//:sudo_opt:/}
|
|
fi
|
|
elif [[ $this_word == *':sudo_arg:'* ]]; then
|
|
next_word+=':sudo_opt:'
|
|
next_word+=':start:'
|
|
fi
|
|
fi
|
|
|
|
# The Great Fork: is this a command word? Is this a non-command word?
|
|
if [[ -n ${(M)ZSH_HIGHLIGHT_TOKENS_COMMANDSEPARATOR:#"$arg"} ]]; then
|
|
if _zsh_highlight_main__stack_pop T || _zsh_highlight_main__stack_pop Q; then
|
|
# Missing closing square bracket(s)
|
|
style=unknown-token
|
|
elif [[ $this_word == *':regular:'* ]]; then
|
|
# This highlights empty commands (semicolon follows nothing) as an error.
|
|
# Zsh accepts them, though.
|
|
style=commandseparator
|
|
else
|
|
style=unknown-token
|
|
fi
|
|
if [[ $arg == ';' ]] && $in_array_assignment; then
|
|
# literal newline inside an array assignment
|
|
next_word=':regular:'
|
|
else
|
|
next_word=':start:'
|
|
highlight_glob=true
|
|
if [[ $arg != '|' && $arg != '|&' ]]; then
|
|
next_word+=':start_of_pipeline:'
|
|
fi
|
|
fi
|
|
elif ! (( in_redirection)) && [[ $this_word == *':always:'* && $arg == 'always' ]]; then
|
|
# try-always construct
|
|
style=reserved-word # de facto a reserved word, although not de jure
|
|
next_word=':start:' # only left brace is allowed, apparently
|
|
elif ! (( in_redirection)) && [[ $this_word == *':start:'* ]]; then # $arg is the command word
|
|
if (( ${+precommand_options[$arg]} )) && _zsh_highlight_main__is_runnable $arg; then
|
|
style=precommand
|
|
flags_with_argument=${precommand_options[$arg]%:*}
|
|
flags_sans_argument=${precommand_options[$arg]#*:}
|
|
next_word=${next_word//:regular:/}
|
|
next_word+=':sudo_opt:'
|
|
next_word+=':start:'
|
|
else
|
|
case $res in
|
|
reserved) # reserved word
|
|
style=reserved-word
|
|
# Match braces and handle special cases.
|
|
case $arg in
|
|
($'\x7b')
|
|
braces_stack='Y'"$braces_stack"
|
|
;;
|
|
($'\x7d')
|
|
# We're at command word, so no need to check $right_brace_is_recognised_everywhere
|
|
_zsh_highlight_main__stack_pop 'Y' reserved-word
|
|
if [[ $style == reserved-word ]]; then
|
|
next_word+=':always:'
|
|
fi
|
|
;;
|
|
($'\x5b\x5b')
|
|
braces_stack='T'"$braces_stack"
|
|
;;
|
|
('do')
|
|
braces_stack='D'"$braces_stack"
|
|
;;
|
|
('done')
|
|
_zsh_highlight_main__stack_pop 'D' reserved-word
|
|
;;
|
|
('if')
|
|
braces_stack=':?'"$braces_stack"
|
|
;;
|
|
('then')
|
|
_zsh_highlight_main__stack_pop ':' reserved-word
|
|
;;
|
|
('elif')
|
|
if [[ ${braces_stack[1]} == '?' ]]; then
|
|
braces_stack=':'"$braces_stack"
|
|
else
|
|
style=unknown-token
|
|
fi
|
|
;;
|
|
('else')
|
|
if [[ ${braces_stack[1]} == '?' ]]; then
|
|
:
|
|
else
|
|
style=unknown-token
|
|
fi
|
|
;;
|
|
('fi')
|
|
_zsh_highlight_main__stack_pop '?'
|
|
;;
|
|
('foreach')
|
|
braces_stack='$'"$braces_stack"
|
|
;;
|
|
('end')
|
|
_zsh_highlight_main__stack_pop '$' reserved-word
|
|
;;
|
|
('repeat')
|
|
# skip the repeat-count word
|
|
in_redirection=2
|
|
# The redirection mechanism assumes $this_word describes the word
|
|
# following the redirection. Make it so.
|
|
#
|
|
# That word can be a command word with shortloops (`repeat 2 ls`)
|
|
# or a command separator (`repeat 2; ls` or `repeat 2; do ls; done`).
|
|
#
|
|
# The repeat-count word will be handled like a redirection target.
|
|
this_word=':start::regular:'
|
|
;;
|
|
('!')
|
|
if [[ $this_word != *':start_of_pipeline:'* ]]; then
|
|
style=unknown-token
|
|
else
|
|
# '!' reserved word at start of pipeline; style already set above
|
|
fi
|
|
;;
|
|
esac
|
|
;;
|
|
'suffix alias') style=suffix-alias;;
|
|
alias) :;;
|
|
builtin) style=builtin
|
|
[[ $arg == $'\x5b' ]] && braces_stack='Q'"$braces_stack"
|
|
;;
|
|
function) style=function;;
|
|
command) style=command;;
|
|
hashed) style=hashed-command;;
|
|
none) if _zsh_highlight_main_highlighter_check_assign; then
|
|
_zsh_highlight_main_add_region_highlight $start_pos $end_pos assign
|
|
local i=$(( arg[(i)=] + 1 ))
|
|
if [[ $arg[i] == '(' ]]; then
|
|
in_array_assignment=true
|
|
else
|
|
# assignment to a scalar parameter.
|
|
# (For array assignments, the command doesn't start until the ")" token.)
|
|
#
|
|
# Discard :start_of_pipeline:, if present, as '!' is not valid
|
|
# after assignments.
|
|
next_word+=':start:'
|
|
if (( start_pos + i <= end_pos )); then
|
|
() {
|
|
local highlight_glob=false
|
|
[[ $zsyh_user_options[globassign] == on ]] && highlight_glob=true
|
|
_zsh_highlight_main_highlighter_highlight_argument $i
|
|
}
|
|
fi
|
|
fi
|
|
continue
|
|
elif [[ $arg[0,1] = $histchars[0,1] ]] && (( $#arg[0,2] == 2 )); then
|
|
style=history-expansion
|
|
elif [[ $arg[0,1] == $histchars[2,2] ]]; then
|
|
style=history-expansion
|
|
elif [[ $arg[1,2] == '((' ]]; then
|
|
# Arithmetic evaluation.
|
|
#
|
|
# Note: prior to zsh-5.1.1-52-g4bed2cf (workers/36669), the ${(z)...}
|
|
# splitter would only output the '((' token if the matching '))' had
|
|
# been typed. Therefore, under those versions of zsh, BUFFER="(( 42"
|
|
# would be highlighted as an error until the matching "))" are typed.
|
|
#
|
|
# We highlight just the opening parentheses, as a reserved word; this
|
|
# is how [[ ... ]] is highlighted, too.
|
|
_zsh_highlight_main_add_region_highlight $start_pos $((start_pos + 2)) reserved-word
|
|
if [[ $arg[-2,-1] == '))' ]]; then
|
|
_zsh_highlight_main_add_region_highlight $((end_pos - 2)) $end_pos reserved-word
|
|
fi
|
|
continue
|
|
elif [[ $arg == '()' ]]; then
|
|
# anonymous function
|
|
style=reserved-word
|
|
elif [[ $arg == $'\x28' ]]; then
|
|
# subshell
|
|
style=reserved-word
|
|
braces_stack='R'"$braces_stack"
|
|
elif [[ $arg == $'\x29' ]]; then
|
|
# end of subshell or command substitution
|
|
if _zsh_highlight_main__stack_pop 'S'; then
|
|
REPLY=$start_pos
|
|
reply=($list_highlights)
|
|
return 0
|
|
fi
|
|
_zsh_highlight_main__stack_pop 'R' reserved-word
|
|
else
|
|
if _zsh_highlight_main_highlighter_check_path $arg; then
|
|
style=$REPLY
|
|
else
|
|
style=unknown-token
|
|
fi
|
|
fi
|
|
;;
|
|
*) _zsh_highlight_main_add_region_highlight $start_pos $end_pos arg0_$res
|
|
continue
|
|
;;
|
|
esac
|
|
fi
|
|
if [[ -n ${(M)ZSH_HIGHLIGHT_TOKENS_CONTROL_FLOW:#"$arg"} ]]; then
|
|
next_word=':start::start_of_pipeline:'
|
|
fi
|
|
else # $arg is a non-command word
|
|
case $arg in
|
|
$'\x29') # subshell or end of array assignment
|
|
if $in_array_assignment; then
|
|
style=assign
|
|
in_array_assignment=false
|
|
next_word+=':start:'
|
|
elif (( in_redirection )); then
|
|
style=unknown-token
|
|
else
|
|
if _zsh_highlight_main__stack_pop 'S'; then
|
|
REPLY=$start_pos
|
|
reply=($list_highlights)
|
|
return 0
|
|
fi
|
|
_zsh_highlight_main__stack_pop 'R' reserved-word
|
|
fi;;
|
|
$'\x28\x29') # possibly a function definition
|
|
if (( in_redirection )) || $in_array_assignment; then
|
|
style=unknown-token
|
|
else
|
|
if [[ $zsyh_user_options[multifuncdef] == on ]] || false # TODO: or if the previous word was a command word
|
|
then
|
|
next_word+=':start::start_of_pipeline:'
|
|
fi
|
|
style=reserved-word
|
|
fi
|
|
;;
|
|
*) if false; then
|
|
elif [[ $arg = $'\x7d' ]] && $right_brace_is_recognised_everywhere; then
|
|
# Parsing rule: {
|
|
#
|
|
# Additionally, `tt(})' is recognized in any position if neither the
|
|
# tt(IGNORE_BRACES) option nor the tt(IGNORE_CLOSE_BRACES) option is set.
|
|
if (( in_redirection )) || $in_array_assignment; then
|
|
style=unknown-token
|
|
else
|
|
_zsh_highlight_main__stack_pop 'Y' reserved-word
|
|
if [[ $style == reserved-word ]]; then
|
|
next_word+=':always:'
|
|
fi
|
|
fi
|
|
elif [[ $arg[0,1] = $histchars[0,1] ]] && (( $#arg[0,2] == 2 )); then
|
|
style=history-expansion
|
|
elif [[ $arg == $'\x5d\x5d' ]] && _zsh_highlight_main__stack_pop 'T' reserved-word; then
|
|
:
|
|
elif [[ $arg == $'\x5d' ]] && _zsh_highlight_main__stack_pop 'Q' builtin; then
|
|
:
|
|
else
|
|
_zsh_highlight_main_highlighter_highlight_argument 1 $(( 1 != in_redirection ))
|
|
continue
|
|
fi
|
|
;;
|
|
esac
|
|
fi
|
|
_zsh_highlight_main_add_region_highlight $start_pos $end_pos $style
|
|
done
|
|
[[ "$proc_buf" = (#b)(#s)(([[:space:]]|\\$'\n')#) ]]
|
|
REPLY=$(( end_pos + ${#match[1]} - 1 ))
|
|
reply=($list_highlights)
|
|
return $(( $#braces_stack > 0 ))
|
|
}
|
|
|
|
# Check if $arg is variable assignment
|
|
_zsh_highlight_main_highlighter_check_assign()
|
|
{
|
|
setopt localoptions extended_glob
|
|
[[ $arg == [[:alpha:]_][[:alnum:]_]#(|\[*\])(|[+])=* ]] ||
|
|
[[ $arg == [0-9]##(|[+])=* ]]
|
|
}
|
|
|
|
_zsh_highlight_main_highlighter_highlight_path_separators()
|
|
{
|
|
local pos style_pathsep
|
|
style_pathsep=$1_pathseparator
|
|
reply=()
|
|
[[ -z "$ZSH_HIGHLIGHT_STYLES[$style_pathsep]" || "$ZSH_HIGHLIGHT_STYLES[$1]" == "$ZSH_HIGHLIGHT_STYLES[$style_pathsep]" ]] && return 0
|
|
for (( pos = start_pos; $pos <= end_pos; pos++ )) ; do
|
|
if [[ $BUFFER[pos] == / ]]; then
|
|
reply+=($((pos - 1)) $pos $style_pathsep)
|
|
fi
|
|
done
|
|
}
|
|
|
|
# Check if $1 is a path.
|
|
# If yes, return 0 and in $REPLY the style to use.
|
|
# Else, return non-zero (and the contents of $REPLY is undefined).
|
|
_zsh_highlight_main_highlighter_check_path()
|
|
{
|
|
_zsh_highlight_main_highlighter_expand_path "$1"
|
|
local expanded_path="$REPLY" tmp_path
|
|
|
|
REPLY=path
|
|
|
|
[[ -z $expanded_path ]] && return 1
|
|
|
|
# Check if this is a blacklisted path
|
|
if [[ $expanded_path[1] == / ]]; then
|
|
tmp_path=$expanded_path
|
|
else
|
|
tmp_path=$PWD/$expanded_path
|
|
fi
|
|
tmp_path=$tmp_path:a
|
|
|
|
while [[ $tmp_path != / ]]; do
|
|
[[ -n ${(M)X_ZSH_HIGHLIGHT_DIRS_BLACKLIST:#$tmp_path} ]] && return 1
|
|
tmp_path=$tmp_path:h
|
|
done
|
|
|
|
[[ -L $expanded_path ]] && return 0
|
|
[[ -e $expanded_path ]] && return 0
|
|
|
|
# Search the path in CDPATH
|
|
local cdpath_dir
|
|
for cdpath_dir in $cdpath ; do
|
|
[[ -e "$cdpath_dir/$expanded_path" ]] && return 0
|
|
done
|
|
|
|
# If dirname($1) doesn't exist, neither does $1.
|
|
[[ ! -d ${expanded_path:h} ]] && return 1
|
|
|
|
# If this word ends the buffer, check if it's the prefix of a valid path.
|
|
if (( has_end && (len == end_pos) )) &&
|
|
[[ $WIDGET != zle-line-finish ]]; then
|
|
local -a tmp
|
|
tmp=( ${expanded_path}*(N) )
|
|
(( $#tmp > 0 )) && REPLY=path_prefix && return 0
|
|
fi
|
|
|
|
# It's not a path.
|
|
return 1
|
|
}
|
|
|
|
# Highlight an argument and possibly special chars in quotes starting at $1 in $arg
|
|
# This command will at least highlight $1 to end_pos with the default style
|
|
# If $2 is set to 0, the argument cannot be highlighted as an option.
|
|
_zsh_highlight_main_highlighter_highlight_argument()
|
|
{
|
|
local base_style=default i=$1 option_eligible=${2:-1} path_eligible=1 ret start style
|
|
local -a highlights
|
|
|
|
local -a match mbegin mend
|
|
local MATCH; integer MBEGIN MEND
|
|
|
|
case "$arg[i]" in
|
|
'%')
|
|
if [[ $arg[i+1] == '?' ]]; then
|
|
(( i += 2 ))
|
|
fi
|
|
;;
|
|
'-')
|
|
if (( option_eligible )); then
|
|
if [[ $arg[i+1] == - ]]; then
|
|
base_style=double-hyphen-option
|
|
else
|
|
base_style=single-hyphen-option
|
|
fi
|
|
path_eligible=0
|
|
fi
|
|
;;
|
|
'=')
|
|
if [[ $arg[i+1] == $'\x28' ]]; then
|
|
(( i += 2 ))
|
|
_zsh_highlight_main_highlighter_highlight_list $(( start_pos + i - 1 )) S $has_end $arg[i,end_pos]
|
|
ret=$?
|
|
(( i += REPLY ))
|
|
highlights+=(
|
|
$(( start_pos + $1 - 1 )) $(( start_pos + i )) process-substitution
|
|
$(( start_pos + $1 - 1 )) $(( start_pos + $1 + 1 )) process-substitution-delimiter
|
|
$reply
|
|
)
|
|
if (( ret == 0 )); then
|
|
highlights+=($(( start_pos + i - 1 )) $(( start_pos + i )) process-substitution-delimiter)
|
|
fi
|
|
fi
|
|
esac
|
|
|
|
for (( ; i <= end_pos - start_pos ; i += 1 )); do
|
|
case "$arg[$i]" in
|
|
"\\") (( i += 1 )); continue;;
|
|
"'")
|
|
_zsh_highlight_main_highlighter_highlight_single_quote $i
|
|
(( i = REPLY ))
|
|
highlights+=($reply)
|
|
;;
|
|
'"')
|
|
_zsh_highlight_main_highlighter_highlight_double_quote $i
|
|
(( i = REPLY ))
|
|
highlights+=($reply)
|
|
;;
|
|
'`')
|
|
_zsh_highlight_main_highlighter_highlight_backtick $i
|
|
(( i = REPLY ))
|
|
highlights+=($reply)
|
|
;;
|
|
'$')
|
|
path_eligible=0
|
|
if [[ $arg[i+1] == "'" ]]; then
|
|
path_eligible=1
|
|
_zsh_highlight_main_highlighter_highlight_dollar_quote $i
|
|
(( i = REPLY ))
|
|
highlights+=($reply)
|
|
continue
|
|
elif [[ $arg[i+1] == $'\x28' ]]; then
|
|
start=$i
|
|
(( i += 2 ))
|
|
_zsh_highlight_main_highlighter_highlight_list $(( start_pos + i - 1 )) S $has_end $arg[i,end_pos]
|
|
ret=$?
|
|
(( i += REPLY ))
|
|
highlights+=(
|
|
$(( start_pos + start - 1)) $(( start_pos + i )) command-substitution-unquoted
|
|
$(( start_pos + start - 1)) $(( start_pos + start + 1)) command-substitution-delimiter-unquoted
|
|
$reply
|
|
)
|
|
if (( ret == 0 )); then
|
|
highlights+=($(( start_pos + i - 1)) $(( start_pos + i )) command-substitution-delimiter-unquoted)
|
|
fi
|
|
continue
|
|
fi
|
|
while [[ $arg[i+1] == [\^=~#+] ]]; do
|
|
(( i += 1 ))
|
|
done
|
|
if [[ $arg[i+1] == [*@#?$!-] ]]; then
|
|
(( i += 1 ))
|
|
fi;;
|
|
[\<\>])
|
|
if [[ $arg[i+1] == $'\x28' ]]; then # \x28 = open paren
|
|
start=$i
|
|
(( i += 2 ))
|
|
_zsh_highlight_main_highlighter_highlight_list $(( start_pos + i - 1 )) S $has_end $arg[i,end_pos]
|
|
ret=$?
|
|
(( i += REPLY ))
|
|
highlights+=(
|
|
$(( start_pos + start - 1)) $(( start_pos + i )) process-substitution
|
|
$(( start_pos + start - 1)) $(( start_pos + start + 1 )) process-substitution-delimiter
|
|
$reply
|
|
)
|
|
if (( ret == 0 )); then
|
|
highlights+=($(( start_pos + i - 1)) $(( start_pos + i )) process-substitution-delimiter)
|
|
fi
|
|
continue
|
|
fi
|
|
;|
|
|
*)
|
|
if $highlight_glob && [[ ${arg[$i]} =~ ^[*?] || ${arg:$i-1} =~ ^\<[0-9]*-[0-9]*\> ]]; then
|
|
highlights+=($(( start_pos + i - 1 )) $(( start_pos + i + $#MATCH - 1)) globbing)
|
|
(( i += $#MATCH - 1 ))
|
|
path_eligible=0
|
|
else
|
|
continue
|
|
fi
|
|
;;
|
|
esac
|
|
done
|
|
|
|
if (( path_eligible )) && _zsh_highlight_main_highlighter_check_path $arg[$1,end_pos]; then
|
|
base_style=$REPLY
|
|
_zsh_highlight_main_highlighter_highlight_path_separators $base_style
|
|
highlights+=($reply)
|
|
fi
|
|
|
|
highlights=($(( start_pos + $1 - 1 )) $end_pos $base_style $highlights)
|
|
_zsh_highlight_main_add_many_region_highlights $highlights
|
|
}
|
|
|
|
# Quote Helper Functions
|
|
#
|
|
# $arg is expected to be set to the current argument
|
|
# $start_pos is expected to be set to the start of $arg in $BUFFER
|
|
# $1 is the index in $arg which starts the quote
|
|
# $REPLY is returned as the end of quote index in $arg
|
|
# $reply is returned as an array of region_highlight additions
|
|
|
|
# Highlight single-quoted strings
|
|
_zsh_highlight_main_highlighter_highlight_single_quote()
|
|
{
|
|
local arg1=$1 i q=\' style
|
|
i=$arg[(ib:arg1+1:)$q]
|
|
reply=()
|
|
|
|
if [[ $zsyh_user_options[rcquotes] == on ]]; then
|
|
while [[ $arg[i+1] == "'" ]]; do
|
|
reply+=($(( start_pos + i - 1 )) $(( start_pos + i + 1 )) rc-quote)
|
|
(( i++ ))
|
|
i=$arg[(ib:i+1:)$q]
|
|
done
|
|
fi
|
|
|
|
if [[ $arg[i] == "'" ]]; then
|
|
style=single-quoted-argument
|
|
else
|
|
# If unclosed, i points past the end
|
|
(( i-- ))
|
|
style=single-quoted-argument-unclosed
|
|
fi
|
|
reply=($(( start_pos + arg1 - 1 )) $(( start_pos + i )) $style $reply)
|
|
REPLY=$i
|
|
}
|
|
|
|
# Highlight special chars inside double-quoted strings
|
|
_zsh_highlight_main_highlighter_highlight_double_quote()
|
|
{
|
|
local -a breaks match mbegin mend saved_reply
|
|
local MATCH; integer last_break=$(( start_pos + $1 - 1 )) MBEGIN MEND
|
|
local i j k ret style
|
|
reply=()
|
|
|
|
for (( i = $1 + 1 ; i <= end_pos - start_pos ; i += 1 )) ; do
|
|
(( j = i + start_pos - 1 ))
|
|
(( k = j + 1 ))
|
|
case "$arg[$i]" in
|
|
'"') break;;
|
|
'`') saved_reply=($reply)
|
|
_zsh_highlight_main_highlighter_highlight_backtick $i
|
|
(( i = REPLY ))
|
|
reply=($saved_reply $reply)
|
|
continue
|
|
;;
|
|
'$' ) style=dollar-double-quoted-argument
|
|
# Look for an alphanumeric parameter name.
|
|
if [[ ${arg:$i} =~ ^([A-Za-z_][A-Za-z0-9_]*|[0-9]+) ]] ; then
|
|
(( k += $#MATCH )) # highlight the parameter name
|
|
(( i += $#MATCH )) # skip past it
|
|
elif [[ ${arg:$i} =~ ^[{]([A-Za-z_][A-Za-z0-9_]*|[0-9]+)[}] ]] ; then
|
|
(( k += $#MATCH )) # highlight the parameter name and braces
|
|
(( i += $#MATCH )) # skip past it
|
|
elif [[ $arg[i+1] == '$' ]]; then
|
|
# $$ - pid
|
|
(( k += 1 )) # highlight both dollar signs
|
|
(( i += 1 )) # don't consider the second one as introducing another parameter expansion
|
|
elif [[ $arg[i+1] == [-#*@?] ]]; then
|
|
# $#, $*, $@, $?, $- - like $$ above
|
|
(( k += 1 )) # highlight both dollar signs
|
|
(( i += 1 )) # don't consider the second one as introducing another parameter expansion
|
|
elif [[ $arg[i+1] == $'\x28' ]]; then
|
|
breaks+=( $last_break $(( start_pos + i - 1 )) )
|
|
(( i += 2 ))
|
|
saved_reply=($reply)
|
|
_zsh_highlight_main_highlighter_highlight_list $(( start_pos + i - 1 )) S $has_end $arg[i,end_pos]
|
|
ret=$?
|
|
(( i += REPLY ))
|
|
last_break=$(( start_pos + i ))
|
|
reply=(
|
|
$saved_reply
|
|
$j $(( start_pos + i )) command-substitution-quoted
|
|
$j $(( j + 2 )) command-substitution-delimiter-quoted
|
|
$reply
|
|
)
|
|
if (( ret == 0 )); then
|
|
reply+=($(( start_pos + i - 1 )) $(( start_pos + i )) command-substitution-delimiter-quoted)
|
|
fi
|
|
continue
|
|
else
|
|
continue
|
|
fi
|
|
;;
|
|
"\\") style=back-double-quoted-argument
|
|
if [[ \\\`\"\$${histchars[1]} == *$arg[$i+1]* ]]; then
|
|
(( k += 1 )) # Color following char too.
|
|
(( i += 1 )) # Skip parsing the escaped char.
|
|
else
|
|
continue
|
|
fi
|
|
;;
|
|
($histchars[1]) # ! - may be a history expansion
|
|
if [[ $arg[i+1] != ('='|$'\x28'|$'\x7b'|[[:blank:]]) ]]; then
|
|
style=history-expansion
|
|
else
|
|
continue
|
|
fi
|
|
;;
|
|
*) continue ;;
|
|
|
|
esac
|
|
reply+=($j $k $style)
|
|
done
|
|
|
|
if [[ $arg[i] == '"' ]]; then
|
|
style=double-quoted-argument
|
|
else
|
|
# If unclosed, i points past the end
|
|
(( i-- ))
|
|
style=double-quoted-argument-unclosed
|
|
fi
|
|
(( last_break != start_pos + i )) && breaks+=( $last_break $(( start_pos + i )) )
|
|
saved_reply=($reply)
|
|
reply=()
|
|
for 1 2 in $breaks; do
|
|
reply+=($1 $2 $style)
|
|
done
|
|
reply+=($saved_reply)
|
|
REPLY=$i
|
|
}
|
|
|
|
# Highlight special chars inside dollar-quoted strings
|
|
_zsh_highlight_main_highlighter_highlight_dollar_quote()
|
|
{
|
|
local -a match mbegin mend
|
|
local MATCH; integer MBEGIN MEND
|
|
local i j k style
|
|
local AA
|
|
integer c
|
|
reply=()
|
|
|
|
for (( i = $1 + 2 ; i <= end_pos - start_pos ; i += 1 )) ; do
|
|
(( j = i + start_pos - 1 ))
|
|
(( k = j + 1 ))
|
|
case "$arg[$i]" in
|
|
"'") break;;
|
|
"\\") style=back-dollar-quoted-argument
|
|
for (( c = i + 1 ; c <= end_pos - start_pos ; c += 1 )); do
|
|
[[ "$arg[$c]" != ([0-9xXuUa-fA-F]) ]] && break
|
|
done
|
|
AA=$arg[$i+1,$c-1]
|
|
# Matching for HEX and OCT values like \0xA6, \xA6 or \012
|
|
if [[ "$AA" =~ "^(x|X)[0-9a-fA-F]{1,2}"
|
|
|| "$AA" =~ "^[0-7]{1,3}"
|
|
|| "$AA" =~ "^u[0-9a-fA-F]{1,4}"
|
|
|| "$AA" =~ "^U[0-9a-fA-F]{1,8}"
|
|
]]; then
|
|
(( k += $#MATCH ))
|
|
(( i += $#MATCH ))
|
|
else
|
|
if (( $#arg > $i+1 )) && [[ $arg[$i+1] == [xXuU] ]]; then
|
|
# \x not followed by hex digits is probably an error
|
|
style=unknown-token
|
|
fi
|
|
(( k += 1 )) # Color following char too.
|
|
(( i += 1 )) # Skip parsing the escaped char.
|
|
fi
|
|
;;
|
|
*) continue ;;
|
|
|
|
esac
|
|
reply+=($j $k $style)
|
|
done
|
|
|
|
if [[ $arg[i] == "'" ]]; then
|
|
style=dollar-quoted-argument
|
|
else
|
|
# If unclosed, i points past the end
|
|
(( i-- ))
|
|
style=dollar-quoted-argument-unclosed
|
|
fi
|
|
reply=($(( start_pos + $1 - 1 )) $(( start_pos + i )) $style $reply)
|
|
REPLY=$i
|
|
}
|
|
|
|
# Highlight backtick substitutions
|
|
_zsh_highlight_main_highlighter_highlight_backtick()
|
|
{
|
|
# buf is the contents of the backticks with a layer of backslashes removed.
|
|
# last is the index of arg for the start of the string to be copied into buf.
|
|
# It is either one past the beginning backtick or one past the last backslash.
|
|
# offset is a count of consumed \ (the delta between buf and arg).
|
|
# offsets is an array indexed by buf offset of when the delta between buf and arg changes.
|
|
# It is sparse, so search backwards to the last value
|
|
local buf highlight style=back-quoted-argument-unclosed style_end
|
|
local -i arg1=$1 end_ i=$1 last offset=0 start subshell_has_end=0
|
|
local -a highlight_zone highlights offsets
|
|
reply=()
|
|
|
|
last=$(( arg1 + 1 ))
|
|
# Remove one layer of backslashes and find the end
|
|
while i=$arg[(ib:i+1:)[\\\\\`]]; do # find the next \ or `
|
|
if (( i > end_pos - start_pos )); then
|
|
buf=$buf$arg[last,i]
|
|
offsets[i-arg1-offset]='' # So we never index past the end
|
|
(( i-- ))
|
|
subshell_has_end=$(( has_end && (start_pos + i == len) ))
|
|
break
|
|
fi
|
|
|
|
if [[ $arg[i] == '\' ]]; then
|
|
(( i++ ))
|
|
# POSIX XCU 2.6.3
|
|
if [[ $arg[i] == ('$'|'`'|'\') ]]; then
|
|
buf=$buf$arg[last,i-2]
|
|
(( offset++ ))
|
|
# offsets is relative to buf, so adjust by -arg1
|
|
offsets[i-arg1-offset]=$offset
|
|
else
|
|
buf=$buf$arg[last,i-1]
|
|
fi
|
|
else # it's an unquoted ` and this is the end
|
|
style=back-quoted-argument
|
|
style_end=back-quoted-argument-delimiter
|
|
buf=$buf$arg[last,i-1]
|
|
offsets[i-arg1-offset]='' # So we never index past the end
|
|
break
|
|
fi
|
|
last=$i
|
|
done
|
|
|
|
_zsh_highlight_main_highlighter_highlight_list 0 '' $subshell_has_end $buf
|
|
|
|
# Munge the reply to account for removed backslashes
|
|
for start end_ highlight in $reply; do
|
|
start=$(( start_pos + arg1 + start + offsets[(Rb:start:)?*] ))
|
|
end_=$(( start_pos + arg1 + end_ + offsets[(Rb:end_:)?*] ))
|
|
highlights+=($start $end_ $highlight)
|
|
if [[ $highlight == back-quoted-argument-unclosed && $style == back-quoted-argument ]]; then
|
|
# An inner backtick command substitution is unclosed, but this level is closed
|
|
style_end=unknown-token
|
|
fi
|
|
done
|
|
|
|
reply=(
|
|
$(( start_pos + arg1 - 1 )) $(( start_pos + i )) $style
|
|
$(( start_pos + arg1 - 1 )) $(( start_pos + arg1 )) back-quoted-argument-delimiter
|
|
$highlights
|
|
)
|
|
if (( $#style_end )); then
|
|
reply+=($(( start_pos + i - 1)) $(( start_pos + i )) $style_end)
|
|
fi
|
|
REPLY=$i
|
|
}
|
|
|
|
# Called with a single positional argument.
|
|
# Perform filename expansion (tilde expansion) on the argument and set $REPLY to the expanded value.
|
|
#
|
|
# Does not perform filename generation (globbing).
|
|
_zsh_highlight_main_highlighter_expand_path()
|
|
{
|
|
(( $# == 1 )) || print -r -- >&2 "zsh-syntax-highlighting: BUG: _zsh_highlight_main_highlighter_expand_path: called without argument"
|
|
|
|
# The $~1 syntax normally performs filename generation, but not when it's on the right-hand side of ${x:=y}.
|
|
setopt localoptions nonomatch
|
|
unset REPLY
|
|
: ${REPLY:=${(Q)${~1}}}
|
|
}
|
|
|
|
# -------------------------------------------------------------------------------------------------
|
|
# Main highlighter initialization
|
|
# -------------------------------------------------------------------------------------------------
|
|
|
|
_zsh_highlight_main__precmd_hook() {
|
|
_zsh_highlight_main__command_type_cache=()
|
|
}
|
|
|
|
autoload -Uz add-zsh-hook
|
|
if add-zsh-hook precmd _zsh_highlight_main__precmd_hook 2>/dev/null; then
|
|
# Initialize command type cache
|
|
typeset -gA _zsh_highlight_main__command_type_cache
|
|
else
|
|
print -r -- >&2 'zsh-syntax-highlighting: Failed to load add-zsh-hook. Some speed optimizations will not be used.'
|
|
# Make sure the cache is unset
|
|
unset _zsh_highlight_main__command_type_cache
|
|
fi
|
|
typeset -ga X_ZSH_HIGHLIGHT_DIRS_BLACKLIST
|