47d6dac133
Move tests on the highlight path until after the blacklist is checked so that blacklisted paths are not tested. This should prevent hangs on dead remote filesystems provided the path is blacklisted in X_ZSH_HIGHLIGHT_DIRS_BLACKLIST. Updated tests to 'default' highlight as the blacklist is now checked before the path is tested. Bug: https://github.com/zsh-users/zsh-syntax-highlighting/issues/528
1087 lines
40 KiB
Bash
1087 lines
40 KiB
Bash
# -------------------------------------------------------------------------------------------------
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# Copyright (c) 2010-2017 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[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-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[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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if (( $+argv[2] )); then
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# Caller specified inheritance explicitly.
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else
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# Automate inheritance.
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typeset -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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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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)
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local needle=$1 value
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while [[ -n ${value::=$fallback_of[$needle]} ]]; do
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unset "fallback_of[$needle]" # paranoia against infinite loops
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argv+=($value)
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needle=$value
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done
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fi
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# The calculation was relative to $PREBUFFER$BUFFER, but region_highlight is
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# relative to $BUFFER.
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(( start -= $#PREBUFFER ))
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(( end -= $#PREBUFFER ))
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(( start >= end )) && { print -r -- >&2 "zsh-syntax-highlighting: BUG: _zsh_highlight_main_add_region_highlight: start($start) >= end($end)"; return }
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(( end <= 0 )) && return
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(( start < 0 )) && start=0 # having start<0 is normal with e.g. multiline strings
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_zsh_highlight_add_highlight $start $end "$@"
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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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# 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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# 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__type() {
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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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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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REPLY=alias
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elif (( $+saliases[(e)${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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# 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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! 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 ! (( $+REPLY )); then
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# Note that 'type -w' will run 'rehash' implicitly.
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REPLY="${$(LC_ALL=C builtin type -w -- $1 2>/dev/null)##*: }"
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fi
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if (( $+_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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}
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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: assignment to execute it if matches
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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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eval "$2"
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else
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style=unknown-token
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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 [[ $CONTEXT == (select|vared) ]]; then
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return
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fi
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## Variable declarations and initializations
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local start_pos=0 end_pos highlight_glob=true arg style
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local in_array_assignment=false # true between 'a=(' and the matching ')'
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typeset -a ZSH_HIGHLIGHT_TOKENS_COMMANDSEPARATOR
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typeset -a ZSH_HIGHLIGHT_TOKENS_PRECOMMANDS
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typeset -a ZSH_HIGHLIGHT_TOKENS_CONTROL_FLOW
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local -a options_to_set # used in callees
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local buf="$PREBUFFER$BUFFER"
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integer len="${#buf}"
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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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# "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
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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 [[ $zsyh_user_options[pathdirs] == on ]]; then
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options_to_set+=( PATH_DIRS )
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fi
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ZSH_HIGHLIGHT_TOKENS_COMMANDSEPARATOR=(
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'|' '||' ';' '&' '&&'
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'|&'
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'&!' '&|'
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# ### 'case' syntax, but followed by a pattern, not by a command
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# ';;' ';&' ';|'
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)
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ZSH_HIGHLIGHT_TOKENS_PRECOMMANDS=(
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'builtin' 'command' 'exec' 'nocorrect' 'noglob'
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'pkexec' # immune to #121 because it's usually not passed --option flags
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)
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# Tokens that, at (naively-determined) "command position", are followed by
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# a de jure command position. All of these are reserved words.
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ZSH_HIGHLIGHT_TOKENS_CONTROL_FLOW=(
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$'\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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local -a match mbegin mend
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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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# - :sudo_opt: A leading-dash option to sudo (such as "-u" or "-i")
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# - :sudo_arg: The argument to a sudo leading-dash option that takes one,
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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
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# multiple states. For example, after "sudo -i", the next word may be either
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# another --flag or a command name, hence the state would include both :start:
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# and :sudo_opt:.
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#
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# The tokens are always added with both leading and trailing colons to serve as
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# word delimiters (an improvised array); [[ $x == *:foo:* ]] and x=${x//:foo:/}
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# will DTRT regardless of how many elements or repetitions $x has..
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#
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# Handling of redirections: upon seeing a redirection token, we must stall
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# the current state --- that is, the value of $this_word --- for two iterations
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# (one for the redirection operator, one for the word following it representing
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# the redirection target). Therefore, we set $in_redirection to 2 upon seeing a
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# redirection operator, decrement it each iteration, and stall the current state
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# when it is non-zero. Thus, upon reaching the next word (the one that follows
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# the redirection operator and target), $this_word will still contain values
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# appropriate for the word immediately following the word that preceded the
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# redirection operator.
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#
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# The "the previous word was a redirection operator" state is not communicated
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# to the next iteration via $next_word/$this_word as usual, but via
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# $in_redirection. The value of $next_word from the iteration that processed
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# the operator is discarded.
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#
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local this_word=':start:' next_word
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integer in_redirection
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# Processing buffer
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local proc_buf="$buf"
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local -a args
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if [[ $zsyh_user_options[interactivecomments] == on ]]; then
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args=(${(zZ+c+)buf})
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else
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args=(${(z)buf})
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fi
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for arg in $args; do
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# Initialize $next_word.
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if (( in_redirection )); then
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(( --in_redirection ))
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fi
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if (( in_redirection == 0 )); then
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# Initialize $next_word to its default value.
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next_word=':regular:'
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else
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# Stall $next_word.
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fi
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# Initialize per-"simple command" [zshmisc(1)] variables:
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#
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# $already_added (see next paragraph)
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# $style how to highlight $arg
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# $in_array_assignment boolean flag for "between '(' and ')' of array assignment"
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# $highlight_glob boolean flag for "'noglob' is in effect"
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#
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# $already_added is set to 1 to disable adding an entry to region_highlight
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# for this iteration. Currently, that is done for "" and $'' strings,
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# which add the entry early so escape sequences within the string override
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# the string's color.
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integer already_added=0
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style=unknown-token
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if [[ $this_word == *':start:'* ]]; then
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in_array_assignment=false
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if [[ $arg == 'noglob' ]]; then
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highlight_glob=false
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fi
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fi
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# Compute the new $start_pos and $end_pos, skipping over whitespace in $buf.
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if [[ $arg == ';' ]] ; then
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# We're looking for either a semicolon or a newline, whichever comes
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# first. Both of these are rendered as a ";" (SEPER) by the ${(z)..}
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# flag.
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#
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# We can't use the (Z+n+) flag because that elides the end-of-command
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# token altogether, so 'echo foo\necho bar' (two commands) becomes
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# indistinguishable from 'echo foo echo bar' (one command with three
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# words for arguments).
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local needle=$'[;\n]'
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integer offset=$(( ${proc_buf[(i)$needle]} - 1 ))
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(( start_pos += offset ))
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(( end_pos = start_pos + $#arg ))
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else
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# The line was:
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#
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# integer offset=$(((len-start_pos)-${#${proc_buf##([[:space:]]|\\[[:space:]])#}}))
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#
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# - len-start_pos is length of current proc_buf; basically: initial length minus where
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# we are, and proc_buf is chopped to the "where we are" (compare the "previous value
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# of start_pos" below, and the len-(start_pos-offset) = len-start_pos+offset)
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# - what's after main minus sign is: length of proc_buf without spaces at the beginning
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# - so what the line actually did, was computing length of the spaces!
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# - this can be done via (#b) flag, like below
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if [[ "$proc_buf" = (#b)(#s)(([[:space:]]|\\[[:space:]])##)* ]]; then
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# The first, outer parenthesis
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integer offset="${#match[1]}"
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else
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integer offset=0
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fi
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((start_pos+=offset))
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((end_pos=$start_pos+${#arg}))
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fi
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# Compute the new $proc_buf. We advance it
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|
# (chop off characters from the beginning)
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|
# beyond what end_pos points to, by skipping
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|
# as many characters as end_pos was advanced.
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|
#
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|
# end_pos was advanced by $offset (via start_pos)
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|
# and by $#arg. Note the `start_pos=$end_pos`
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|
# below.
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|
#
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|
# As for the [,len]. We could use [,len-start_pos+offset]
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|
# here, but to make it easier on eyes, we use len and
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|
# rely on the fact that Zsh simply handles that. The
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# length of proc_buf is len-start_pos+offset because
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# we're chopping it to match current start_pos, so its
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# length matches the previous value of start_pos.
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#
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# Why [,-1] is slower than [,length] isn't clear.
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proc_buf="${proc_buf[offset + $#arg + 1,len]}"
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# Handle the INTERACTIVE_COMMENTS option.
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|
#
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# We use the (Z+c+) flag so the entire comment is presented as one token in $arg.
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|
if [[ $zsyh_user_options[interactivecomments] == on && $arg[1] == $histchars[3] ]]; then
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|
if [[ $this_word == *(':regular:'|':start:')* ]]; then
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style=comment
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else
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style=unknown-token # prematurely terminated
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fi
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_zsh_highlight_main_add_region_highlight $start_pos $end_pos $style
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already_added=1
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start_pos=$end_pos
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continue
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fi
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# Analyse the current word.
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|
if _zsh_highlight_main__is_redirection $arg ; then
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if (( in_redirection )); then
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_zsh_highlight_main_add_region_highlight $start_pos $end_pos unknown-token
|
|
already_added=1
|
|
else
|
|
in_redirection=2
|
|
fi
|
|
fi
|
|
|
|
# Special-case the first word after 'sudo'.
|
|
if (( ! in_redirection )); then
|
|
if [[ $this_word == *':sudo_opt:'* ]] && [[ $arg != -* ]]; then
|
|
this_word=${this_word//:sudo_opt:/}
|
|
fi
|
|
fi
|
|
|
|
# Parse the sudo command line
|
|
if (( ! in_redirection )); then
|
|
if [[ $this_word == *':sudo_opt:'* ]]; then
|
|
case "$arg" in
|
|
# Flag that requires an argument
|
|
'-'[Cgprtu]) this_word=${this_word//:start:/};
|
|
next_word=':sudo_arg:';;
|
|
# This prevents misbehavior with sudo -u -otherargument
|
|
'-'*) this_word=${this_word//:start:/};
|
|
next_word+=':start:';
|
|
next_word+=':sudo_opt:';;
|
|
*) ;;
|
|
esac
|
|
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 [[ $this_word == *':always:'* && $arg == 'always' ]]; then
|
|
# try-always construct
|
|
style=reserved-word # de facto a reserved word, although not de jure
|
|
next_word=':start:'
|
|
elif [[ $this_word == *':start:'* ]] && (( in_redirection == 0 )); then # $arg is the command word
|
|
if [[ -n ${(M)ZSH_HIGHLIGHT_TOKENS_PRECOMMANDS:#"$arg"} ]]; then
|
|
style=precommand
|
|
elif [[ "$arg" = "sudo" ]] && { _zsh_highlight_main__type sudo; [[ -n $REPLY && $REPLY != "none" ]] }; then
|
|
style=precommand
|
|
next_word=${next_word//:regular:/}
|
|
next_word+=':sudo_opt:'
|
|
next_word+=':start:'
|
|
else
|
|
_zsh_highlight_main_highlighter_expand_path $arg
|
|
local expanded_arg="$REPLY"
|
|
_zsh_highlight_main__type ${expanded_arg}
|
|
local res="$REPLY"
|
|
() {
|
|
# Special-case: command word is '$foo', like that, without braces or anything.
|
|
#
|
|
# 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
|
|
if [[ $res == none ]] && (( ${+parameters} )) &&
|
|
[[ ${arg[1]} == \$ ]] && [[ ${arg:1} =~ ^([A-Za-z_][A-Za-z0-9_]*|[0-9]+)$ ]] &&
|
|
(( ${+parameters[(e)${MATCH}]} )) && [[ ${parameters[(e)$MATCH]} != *special* ]]
|
|
then
|
|
_zsh_highlight_main__type ${(P)MATCH}
|
|
res=$REPLY
|
|
fi
|
|
}
|
|
case $res in
|
|
reserved) # reserved word
|
|
style=reserved-word
|
|
#
|
|
# Match braces.
|
|
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' style=reserved-word
|
|
if [[ $style == reserved-word ]]; then
|
|
next_word+=':always:'
|
|
fi
|
|
;;
|
|
('do')
|
|
braces_stack='D'"$braces_stack"
|
|
;;
|
|
('done')
|
|
_zsh_highlight_main__stack_pop 'D' style=reserved-word
|
|
;;
|
|
('if')
|
|
braces_stack=':?'"$braces_stack"
|
|
;;
|
|
('then')
|
|
_zsh_highlight_main__stack_pop ':' style=reserved-word
|
|
;;
|
|
('elif')
|
|
if [[ ${braces_stack[1]} == '?' ]]; then
|
|
braces_stack=':'"$braces_stack"
|
|
else
|
|
style=unknown-token
|
|
fi
|
|
;;
|
|
('else')
|
|
if [[ ${braces_stack[1]} == '?' ]]; then
|
|
:
|
|
else
|
|
style=unknown-token
|
|
fi
|
|
;;
|
|
('fi')
|
|
_zsh_highlight_main__stack_pop '?' ""
|
|
;;
|
|
('foreach')
|
|
braces_stack='$'"$braces_stack"
|
|
;;
|
|
('end')
|
|
_zsh_highlight_main__stack_pop '$' style=reserved-word
|
|
;;
|
|
esac
|
|
;;
|
|
'suffix alias') style=suffix-alias;;
|
|
alias) () {
|
|
integer insane_alias
|
|
case $arg in
|
|
# Issue #263: aliases with '=' on their LHS.
|
|
#
|
|
# There are three cases:
|
|
#
|
|
# - Unsupported, breaks 'alias -L' output, but invokable:
|
|
('='*) :;;
|
|
# - Unsupported, not invokable:
|
|
(*'='*) insane_alias=1;;
|
|
# - The common case:
|
|
(*) :;;
|
|
esac
|
|
if (( insane_alias )); then
|
|
style=unknown-token
|
|
else
|
|
# The common case.
|
|
style=alias
|
|
_zsh_highlight_main__resolve_alias $arg
|
|
local alias_target="$REPLY"
|
|
[[ -n ${(M)ZSH_HIGHLIGHT_TOKENS_PRECOMMANDS:#"$alias_target"} && -z ${(M)ZSH_HIGHLIGHT_TOKENS_PRECOMMANDS:#"$arg"} ]] && ZSH_HIGHLIGHT_TOKENS_PRECOMMANDS+=($arg)
|
|
fi
|
|
}
|
|
;;
|
|
builtin) style=builtin;;
|
|
function) style=function;;
|
|
command) style=command;;
|
|
hashed) style=hashed-command;;
|
|
none) if _zsh_highlight_main_highlighter_check_assign; then
|
|
style=assign
|
|
if [[ $arg[-1] == '(' ]]; then
|
|
in_array_assignment=true
|
|
else
|
|
# assignment to a scalar parameter.
|
|
# (For array assignments, the command doesn't start until the ")" token.)
|
|
next_word+=':start:'
|
|
fi
|
|
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 [[ -n ${(M)ZSH_HIGHLIGHT_TOKENS_COMMANDSEPARATOR:#"$arg"} ]]; then
|
|
if [[ $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
|
|
elif (( in_redirection == 2 )); then
|
|
style=redirection
|
|
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.
|
|
style=reserved-word
|
|
_zsh_highlight_main_add_region_highlight $start_pos $((start_pos + 2)) $style
|
|
already_added=1
|
|
if [[ $arg[-2,-1] == '))' ]]; then
|
|
_zsh_highlight_main_add_region_highlight $((end_pos - 2)) $end_pos $style
|
|
already_added=1
|
|
fi
|
|
elif [[ $arg == '()' ]]; then
|
|
# anonymous function
|
|
style=reserved-word
|
|
elif [[ $arg == $'\x28' ]]; then
|
|
# subshell
|
|
style=reserved-word
|
|
braces_stack='R'"$braces_stack"
|
|
elif [[ $arg == $'\x29' ]]; then
|
|
# end of subshell
|
|
_zsh_highlight_main__stack_pop 'R' style=reserved-word
|
|
else
|
|
if _zsh_highlight_main_highlighter_check_path; then
|
|
style=$REPLY
|
|
else
|
|
style=unknown-token
|
|
fi
|
|
fi
|
|
;;
|
|
*) _zsh_highlight_main_add_region_highlight $start_pos $end_pos arg0_$res arg0
|
|
already_added=1
|
|
;;
|
|
esac
|
|
fi
|
|
fi
|
|
if (( ! already_added )) && [[ $style == unknown-token ]] && # not handled by the 'command word' codepath
|
|
{ (( in_redirection )) || [[ $this_word == *':regular:'* ]] || [[ $this_word == *':sudo_opt:'* ]] || [[ $this_word == *':sudo_arg:'* ]] }
|
|
then # $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:'
|
|
else
|
|
_zsh_highlight_main__stack_pop 'R' style=reserved-word
|
|
fi;;
|
|
$'\x28\x29') # possibly a function definition
|
|
if [[ $zsyh_user_options[multifuncdef] == on ]] || false # TODO: or if the previous word was a command word
|
|
then
|
|
next_word+=':start:'
|
|
fi
|
|
style=reserved-word
|
|
;;
|
|
*) 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.
|
|
_zsh_highlight_main__stack_pop 'Y' style=reserved-word
|
|
if [[ $style == reserved-word ]]; then
|
|
next_word+=':always:'
|
|
fi
|
|
elif [[ $arg[0,1] = $histchars[0,1] ]] && (( $#arg[0,2] == 2 )); then
|
|
style=history-expansion
|
|
elif [[ -n ${(M)ZSH_HIGHLIGHT_TOKENS_COMMANDSEPARATOR:#"$arg"} ]]; then
|
|
if [[ $this_word == *':regular:'* ]]; then
|
|
style=commandseparator
|
|
else
|
|
style=unknown-token
|
|
fi
|
|
elif (( in_redirection == 2 )); then
|
|
style=redirection
|
|
else
|
|
_zsh_highlight_main_highlighter_highlight_argument
|
|
already_added=1
|
|
fi
|
|
;;
|
|
esac
|
|
fi
|
|
if ! (( already_added )); then
|
|
_zsh_highlight_main_add_region_highlight $start_pos $end_pos $style
|
|
fi
|
|
if [[ -n ${(M)ZSH_HIGHLIGHT_TOKENS_COMMANDSEPARATOR:#"$arg"} ]]; then
|
|
if [[ $arg == ';' ]] && $in_array_assignment; then
|
|
# literal newline inside an array assignment
|
|
next_word=':regular:'
|
|
else
|
|
next_word=':start:'
|
|
highlight_glob=true
|
|
fi
|
|
elif
|
|
[[ -n ${(M)ZSH_HIGHLIGHT_TOKENS_CONTROL_FLOW:#"$arg"} && $this_word == *':start:'* ]] ||
|
|
[[ -n ${(M)ZSH_HIGHLIGHT_TOKENS_PRECOMMANDS:#"$arg"} && $this_word == *':start:'* ]]; then
|
|
next_word=':start:'
|
|
elif [[ $arg == "repeat" && $this_word == *':start:'* ]]; then
|
|
# skip the repeat-count word
|
|
in_redirection=2
|
|
# The redirection mechanism assumes $this_word describes the word
|
|
# following the redirection. Make it so.
|
|
#
|
|
# That word can be a command word with shortloops (`repeat 2 ls`)
|
|
# or a command separator (`repeat 2; ls` or `repeat 2; do ls; done`).
|
|
#
|
|
# The repeat-count word will be handled like a redirection target.
|
|
this_word=':start::regular:'
|
|
fi
|
|
start_pos=$end_pos
|
|
if (( in_redirection == 0 )); then
|
|
# This is the default/common codepath.
|
|
this_word=$next_word
|
|
else
|
|
# Stall $this_word.
|
|
fi
|
|
done
|
|
}
|
|
|
|
# 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 $arg 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 $arg;
|
|
local expanded_path="$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/$expanded_path" ]] && return 0
|
|
done
|
|
|
|
# If dirname($arg) doesn't exist, neither does $arg.
|
|
[[ ! -d ${expanded_path:h} ]] && return 1
|
|
|
|
# If this word ends the buffer, check if it's the prefix of a valid path.
|
|
if [[ ${BUFFER[1]} != "-" && $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
|
|
# This command will at least highlight start_pos to end_pos with the default style
|
|
_zsh_highlight_main_highlighter_highlight_argument()
|
|
{
|
|
local base_style=default i path_eligible=1 style
|
|
local -a highlights reply
|
|
|
|
local -a match mbegin mend
|
|
local MATCH; integer MBEGIN MEND
|
|
|
|
if [[ $arg[1] == - ]]; then
|
|
if [[ $arg[2] == - ]]; then
|
|
base_style=double-hyphen-option
|
|
else
|
|
base_style=single-hyphen-option
|
|
fi
|
|
path_eligible=0
|
|
fi
|
|
|
|
for (( i = 1 ; i <= end_pos - start_pos ; i += 1 )); do
|
|
case "$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
|
|
fi
|
|
while [[ $arg[i+1] == [\^=~#+] ]]; do
|
|
(( i += 1 ))
|
|
done
|
|
if [[ $arg[i+1] == [*@#?$!-] ]]; then
|
|
(( i += 1 ))
|
|
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 += $#MATCH - 1 ))
|
|
path_eligible=0
|
|
else
|
|
continue
|
|
fi
|
|
;;
|
|
esac
|
|
done
|
|
|
|
if (( path_eligible )) && _zsh_highlight_main_highlighter_check_path; then
|
|
base_style=$REPLY
|
|
_zsh_highlight_main_highlighter_highlight_path_separators $base_style
|
|
highlights+=($reply)
|
|
fi
|
|
|
|
highlights=($start_pos $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 match mbegin mend saved_reply
|
|
local MATCH; integer MBEGIN MEND
|
|
local i j k 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] == $'\x28' ]]; then
|
|
# Highlight just the '$'.
|
|
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 [[ $arg[i] == '"' ]]; then
|
|
style=double-quoted-argument
|
|
else
|
|
# If unclosed, i points past the end
|
|
(( i-- ))
|
|
style=double-quoted-argument-unclosed
|
|
fi
|
|
reply=($(( start_pos + $1 - 1)) $(( start_pos + i )) $style $reply)
|
|
REPLY=$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 subshells
|
|
_zsh_highlight_main_highlighter_highlight_backtick()
|
|
{
|
|
local arg1=$1 i=$1 q=\` style
|
|
reply=()
|
|
while i=$arg[(ib:i+1:)$q]; [[ $arg[i-1] == '\' && $i -lt $(( end_pos - start_pos )) ]]; do done
|
|
|
|
if [[ $arg[i] == '`' ]]; then
|
|
style=back-quoted-argument
|
|
else
|
|
# If unclosed, i points past the end
|
|
(( i-- ))
|
|
style=back-quoted-argument-unclosed
|
|
fi
|
|
reply=($(( start_pos + arg1 - 1 )) $(( start_pos + i )) $style)
|
|
REPLY=$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
|