zsh-syntax-highlighting/zsh-syntax-highlighting.zsh

598 lines
24 KiB
Bash
Raw Blame History

This file contains invisible Unicode characters

This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

# -------------------------------------------------------------------------------------------------
# Copyright (c) 2010-2020 zsh-syntax-highlighting contributors
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without modification, are permitted
# provided that the following conditions are met:
#
# * Redistributions of source code must retain the above copyright notice, this list of conditions
# and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright notice, this list of
# conditions and the following disclaimer in the documentation and/or other materials provided
# with the distribution.
# * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
# may be used to endorse or promote products derived from this software without specific prior
# written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
# -------------------------------------------------------------------------------------------------
# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
# vim: ft=zsh sw=2 ts=2 et
# -------------------------------------------------------------------------------------------------
# First of all, ensure predictable parsing.
typeset zsh_highlight__aliases="$(builtin alias -Lm '[^+]*')"
# In zsh <= 5.2, aliases that begin with a plus sign ('alias -- +foo=42')
# are emitted by `alias -L` without a '--' guard, so they don't round trip.
#
# Hence, we exclude them from unaliasing:
builtin unalias -m '[^+]*'
# Set $0 to the expected value, regardless of functionargzero.
0=${(%):-%N}
if true; then
# $0 is reliable
typeset -g ZSH_HIGHLIGHT_VERSION=$(<"${0:A:h}"/.version)
typeset -g ZSH_HIGHLIGHT_REVISION=$(<"${0:A:h}"/.revision-hash)
if [[ $ZSH_HIGHLIGHT_REVISION == \$Format:* ]]; then
# When running from a source tree without 'make install', $ZSH_HIGHLIGHT_REVISION
# would be set to '$Format:%H$' literally. That's an invalid value, and obtaining
# the valid value (via `git rev-parse HEAD`, as Makefile does) might be costly, so:
ZSH_HIGHLIGHT_REVISION=HEAD
fi
fi
# This function takes a single argument F and returns True iff F is an autoload stub.
_zsh_highlight__function_is_autoload_stub_p() {
if zmodload -e zsh/parameter; then
#(( ${+functions[$1]} )) &&
[[ "$functions[$1]" == *"builtin autoload -X"* ]]
else
#[[ $(type -wa -- "$1") == *'function'* ]] &&
[[ "${${(@f)"$(which -- "$1")"}[2]}" == $'\t'$histchars[3]' undefined' ]]
fi
# Do nothing here: return the exit code of the if.
}
# Return True iff the argument denotes a function name.
_zsh_highlight__is_function_p() {
if zmodload -e zsh/parameter; then
(( ${+functions[$1]} ))
else
[[ $(type -wa -- "$1") == *'function'* ]]
fi
}
# This function takes a single argument F and returns True iff F denotes the
# name of a callable function. A function is callable if it is fully defined
# or if it is marked for autoloading and autoloading it at the first call to it
# will succeed. In particular, if a function has been marked for autoloading
# but is not available in $fpath, then this function will return False therefor.
#
# See users/21671 http://www.zsh.org/cgi-bin/mla/redirect?USERNUMBER=21671
_zsh_highlight__function_callable_p() {
if _zsh_highlight__is_function_p "$1" &&
! _zsh_highlight__function_is_autoload_stub_p "$1"
then
# Already fully loaded.
return 0 # true
else
# "$1" is either an autoload stub, or not a function at all.
#
# Use a subshell to avoid affecting the calling shell.
#
# We expect 'autoload +X' to return non-zero if it fails to fully load
# the function.
( autoload -U +X -- "$1" 2>/dev/null )
return $?
fi
}
# -------------------------------------------------------------------------------------------------
# Core highlighting update system
# -------------------------------------------------------------------------------------------------
# Use workaround for bug in ZSH?
# zsh-users/zsh@48cadf4 http://www.zsh.org/mla/workers//2017/msg00034.html
autoload -Uz is-at-least
if is-at-least 5.4; then
typeset -g zsh_highlight__pat_static_bug=false
else
typeset -g zsh_highlight__pat_static_bug=true
fi
# Array declaring active highlighters names.
typeset -ga ZSH_HIGHLIGHT_HIGHLIGHTERS
# Update ZLE buffer syntax highlighting.
#
# Invokes each highlighter that needs updating.
# This function is supposed to be called whenever the ZLE state changes.
_zsh_highlight()
{
# Store the previous command return code to restore it whatever happens.
local ret=$?
# Make it read-only. Can't combine this with the previous line when POSIX_BUILTINS may be set.
typeset -r ret
# $region_highlight should be predefined, either by zle or by the test suite's mock (non-special) array.
(( ${+region_highlight} )) || {
echo >&2 'zsh-syntax-highlighting: error: $region_highlight is not defined'
echo >&2 'zsh-syntax-highlighting: (Check whether zsh-syntax-highlighting was installed according to the instructions.)'
return $ret
}
# Probe the memo= feature, once.
(( ${+zsh_highlight__memo_feature} )) || {
region_highlight+=( " 0 0 fg=red, memo=zsh-syntax-highlighting" )
case ${region_highlight[-1]} in
("0 0 fg=red")
# zsh 5.8 or earlier
integer -gr zsh_highlight__memo_feature=0
;;
("0 0 fg=red memo=zsh-syntax-highlighting")
# zsh 5.9 or later
integer -gr zsh_highlight__memo_feature=1
;;
(" 0 0 fg=red, memo=zsh-syntax-highlighting") ;&
(*)
# We can get here in two ways:
#
# 1. When not running as a widget. In that case, $region_highlight is
# not a special variable (= one with custom getter/setter functions
# written in C) but an ordinary one, so the third case pattern matches
# and we fall through to this block. (The test suite uses this codepath.)
#
# 2. When running under a future version of zsh that will have changed
# the serialization of $region_highlight elements from their underlying
# C structs, so that none of the previous case patterns will match.
#
# In either case, fall back to a version check.
#
# The memo= feature was added to zsh in commit zsh-5.8-172-gdd6e702ee.
# The version number at the time was 5.8.0.2-dev (see Config/version.mk).
# Therefore, on 5.8.0.3 and newer the memo= feature is available.
#
# On zsh version 5.8.0.2 between the aforementioned commit and the
# first Config/version.mk bump after it (which, at the time of writing,
# is yet to come), this condition will false negative.
if is-at-least 5.8.0.3; then
integer -gr zsh_highlight__memo_feature=1
else
integer -gr zsh_highlight__memo_feature=0
fi
;;
esac
region_highlight[-1]=()
}
# Reset region_highlight to build it from scratch
if (( zsh_highlight__memo_feature )); then
region_highlight=( "${(@)region_highlight:#*memo=zsh-syntax-highlighting*}" )
else
# Legacy codepath. Not very interoperable with other plugins (issue #418).
region_highlight=()
fi
# Remove all highlighting in isearch, so that only the underlining done by zsh itself remains.
# For details see FAQ entry 'Why does syntax highlighting not work while searching history?'.
# This disables highlighting during isearch (for reasons explained in README.md) unless zsh is new enough
# and doesn't have the pattern matching bug
if [[ $WIDGET == zle-isearch-update ]] && { $zsh_highlight__pat_static_bug || ! (( $+ISEARCHMATCH_ACTIVE )) }; then
return $ret
fi
# Before we 'emulate -L', save the user's options
local -A zsyh_user_options
if zmodload -e zsh/parameter; then
zsyh_user_options=("${(kv)options[@]}")
else
local canonical_options onoff option raw_options
raw_options=(${(f)"$(emulate -R zsh; set -o)"})
canonical_options=(${${${(M)raw_options:#*off}%% *}#no} ${${(M)raw_options:#*on}%% *})
for option in "${canonical_options[@]}"; do
[[ -o $option ]]
case $? in
(0) zsyh_user_options+=($option on);;
(1) zsyh_user_options+=($option off);;
(*) # Can't happen, surely?
echo "zsh-syntax-highlighting: warning: '[[ -o $option ]]' returned $?"
;;
esac
done
fi
typeset -r zsyh_user_options
emulate -L zsh
setopt localoptions warncreateglobal nobashrematch
local REPLY # don't leak $REPLY into global scope
# Do not highlight if there are more than 300 chars in the buffer. It's most
# likely a pasted command or a huge list of files in that case..
[[ -n ${ZSH_HIGHLIGHT_MAXLENGTH:-} ]] && [[ $#BUFFER -gt $ZSH_HIGHLIGHT_MAXLENGTH ]] && return $ret
# Do not highlight if there are pending inputs (copy/paste).
[[ $PENDING -gt 0 ]] && return $ret
{
local cache_place
local -a region_highlight_copy
# Select which highlighters in ZSH_HIGHLIGHT_HIGHLIGHTERS need to be invoked.
local highlighter; for highlighter in $ZSH_HIGHLIGHT_HIGHLIGHTERS; do
# eval cache place for current highlighter and prepare it
cache_place="_zsh_highlight__highlighter_${highlighter}_cache"
typeset -ga ${cache_place}
# If highlighter needs to be invoked
if ! type "_zsh_highlight_highlighter_${highlighter}_predicate" >&/dev/null; then
echo "zsh-syntax-highlighting: warning: disabling the ${(qq)highlighter} highlighter as it has not been loaded" >&2
# TODO: use ${(b)} rather than ${(q)} if supported
ZSH_HIGHLIGHT_HIGHLIGHTERS=( ${ZSH_HIGHLIGHT_HIGHLIGHTERS:#${highlighter}} )
elif "_zsh_highlight_highlighter_${highlighter}_predicate"; then
# save a copy, and cleanup region_highlight
region_highlight_copy=("${region_highlight[@]}")
region_highlight=()
# Execute highlighter and save result
{
"_zsh_highlight_highlighter_${highlighter}_paint"
} always {
: ${(AP)cache_place::="${region_highlight[@]}"}
}
# Restore saved region_highlight
region_highlight=("${region_highlight_copy[@]}")
fi
# Use value form cache if any cached
region_highlight+=("${(@P)cache_place}")
done
# Re-apply zle_highlight settings
# region
() {
(( REGION_ACTIVE )) || return
integer min max
if (( MARK > CURSOR )) ; then
min=$CURSOR max=$MARK
else
min=$MARK max=$CURSOR
fi
if (( REGION_ACTIVE == 1 )); then
[[ $KEYMAP = vicmd ]] && (( max++ ))
elif (( REGION_ACTIVE == 2 )); then
local needle=$'\n'
# CURSOR and MARK are 0 indexed between letters like region_highlight
# Do not include the newline in the highlight
(( min = ${BUFFER[(Ib:min:)$needle]} ))
(( max = ${BUFFER[(ib:max:)$needle]} - 1 ))
fi
_zsh_highlight_apply_zle_highlight region standout "$min" "$max"
}
# yank / paste (zsh-5.1.1 and newer)
(( $+YANK_ACTIVE )) && (( YANK_ACTIVE )) && _zsh_highlight_apply_zle_highlight paste standout "$YANK_START" "$YANK_END"
# isearch
(( $+ISEARCHMATCH_ACTIVE )) && (( ISEARCHMATCH_ACTIVE )) && _zsh_highlight_apply_zle_highlight isearch underline "$ISEARCHMATCH_START" "$ISEARCHMATCH_END"
# suffix
(( $+SUFFIX_ACTIVE )) && (( SUFFIX_ACTIVE )) && _zsh_highlight_apply_zle_highlight suffix bold "$SUFFIX_START" "$SUFFIX_END"
return $ret
} always {
typeset -g _ZSH_HIGHLIGHT_PRIOR_BUFFER="$BUFFER"
typeset -gi _ZSH_HIGHLIGHT_PRIOR_CURSOR=$CURSOR
}
}
# Apply highlighting based on entries in the zle_highlight array.
# This function takes four arguments:
# 1. The exact entry (no patterns) in the zle_highlight array:
# region, paste, isearch, or suffix
# 2. The default highlighting that should be applied if the entry is unset
# 3. and 4. Two integer values describing the beginning and end of the
# range. The order does not matter.
_zsh_highlight_apply_zle_highlight() {
local entry="$1" default="$2"
integer first="$3" second="$4"
# read the relevant entry from zle_highlight
#
# ### In zsh≥5.0.8 we'd use ${(b)entry}, but we support older zsh's, so we don't
# ### add (b). The only effect is on the failure mode for callers that violate
# ### the precondition.
local region="${zle_highlight[(r)${entry}:*]-}"
if [[ -z "$region" ]]; then
# entry not specified at all, use default value
region=$default
else
# strip prefix
region="${region#${entry}:}"
# no highlighting when set to the empty string or to 'none'
if [[ -z "$region" ]] || [[ "$region" == none ]]; then
return
fi
fi
integer start end
if (( first < second )); then
start=$first end=$second
else
start=$second end=$first
fi
region_highlight+=("$start $end $region, memo=zsh-syntax-highlighting")
}
# -------------------------------------------------------------------------------------------------
# API/utility functions for highlighters
# -------------------------------------------------------------------------------------------------
# Array used by highlighters to declare user overridable styles.
typeset -gA ZSH_HIGHLIGHT_STYLES
# Whether the command line buffer has been modified or not.
#
# Returns 0 if the buffer has changed since _zsh_highlight was last called.
_zsh_highlight_buffer_modified()
{
[[ "${_ZSH_HIGHLIGHT_PRIOR_BUFFER:-}" != "$BUFFER" ]]
}
# Whether the cursor has moved or not.
#
# Returns 0 if the cursor has moved since _zsh_highlight was last called.
_zsh_highlight_cursor_moved()
{
[[ -n $CURSOR ]] && [[ -n ${_ZSH_HIGHLIGHT_PRIOR_CURSOR-} ]] && (($_ZSH_HIGHLIGHT_PRIOR_CURSOR != $CURSOR))
}
# Add a highlight defined by ZSH_HIGHLIGHT_STYLES.
#
# Should be used by all highlighters aside from 'pattern' (cf. ZSH_HIGHLIGHT_PATTERN).
# Overwritten in tests/test-highlighting.zsh when testing.
_zsh_highlight_add_highlight()
{
local -i start end
local highlight
start=$1
end=$2
shift 2
for highlight; do
if (( $+ZSH_HIGHLIGHT_STYLES[$highlight] )); then
region_highlight+=("$start $end $ZSH_HIGHLIGHT_STYLES[$highlight], memo=zsh-syntax-highlighting")
break
fi
done
}
# -------------------------------------------------------------------------------------------------
# Setup functions
# -------------------------------------------------------------------------------------------------
# Helper for _zsh_highlight_bind_widgets
# $1 is name of widget to call
_zsh_highlight_call_widget()
{
builtin zle "$@" &&
_zsh_highlight
}
# Decide whether to use the zle-line-pre-redraw codepath (colloquially known as
# "feature/redrawhook", after the topic branch's name) or the legacy "bind all
# widgets" codepath.
#
# We use the new codepath under two conditions:
#
# 1. If it's available, which we check by testing for add-zle-hook-widget's availability.
#
# 2. If zsh has the memo= feature, which is required for interoperability reasons.
# See issues #579 and #735, and the issues referenced from them.
#
# We check this with a plain version number check, since a functional check,
# as done by _zsh_highlight, can only be done from inside a widget
# function — a catch-22.
#
# See _zsh_highlight for the magic version number. (The use of 5.8.0.2
# rather than 5.8.0.3 as in the _zsh_highlight is deliberate.)
if is-at-least 5.8.0.2 && _zsh_highlight__function_callable_p add-zle-hook-widget
then
autoload -U add-zle-hook-widget
_zsh_highlight__zle-line-finish() {
# Reset $WIDGET since the 'main' highlighter depends on it.
#
# Since $WIDGET is declared by zle as read-only in this function's scope,
# a nested function is required in order to shadow its built-in value;
# see "User-defined widgets" in zshall.
() {
local -h -r WIDGET=zle-line-finish
_zsh_highlight
}
}
_zsh_highlight__zle-line-pre-redraw() {
# Set $? to 0 for _zsh_highlight. Without this, subsequent
# zle-line-pre-redraw hooks won't run, since add-zle-hook-widget happens to
# call us with $? == 1 in the common case.
true && _zsh_highlight "$@"
}
_zsh_highlight_bind_widgets(){}
if [[ -o zle ]]; then
add-zle-hook-widget zle-line-pre-redraw _zsh_highlight__zle-line-pre-redraw
add-zle-hook-widget zle-line-finish _zsh_highlight__zle-line-finish
fi
else
# Rebind all ZLE widgets to make them invoke _zsh_highlights.
_zsh_highlight_bind_widgets()
{
setopt localoptions noksharrays
typeset -F SECONDS
local prefix=orig-s$SECONDS-r$RANDOM # unique each time, in case we're sourced more than once
# Load ZSH module zsh/zleparameter, needed to override user defined widgets.
zmodload zsh/zleparameter 2>/dev/null || {
print -r -- >&2 'zsh-syntax-highlighting: failed loading zsh/zleparameter.'
return 1
}
# Override ZLE widgets to make them invoke _zsh_highlight.
local -U widgets_to_bind
widgets_to_bind=(${${(k)widgets}:#(.*|run-help|which-command|beep|set-local-history|yank|yank-pop)})
# Always wrap special zle-line-finish widget. This is needed to decide if the
# current line ends and special highlighting logic needs to be applied.
# E.g. remove cursor imprint, don't highlight partial paths, ...
widgets_to_bind+=(zle-line-finish)
# Always wrap special zle-isearch-update widget to be notified of updates in isearch.
# This is needed because we need to disable highlighting in that case.
widgets_to_bind+=(zle-isearch-update)
local cur_widget
for cur_widget in $widgets_to_bind; do
case ${widgets[$cur_widget]:-""} in
# Already rebound event: do nothing.
user:_zsh_highlight_widget_*);;
# The "eval"'s are required to make $cur_widget a closure: the value of the parameter at function
# definition time is used.
#
# We can't use ${0/_zsh_highlight_widget_} because these widgets are always invoked with
# NO_function_argzero, regardless of the option's setting here.
# User defined widget: override and rebind old one with prefix "orig-".
user:*) zle -N $prefix-$cur_widget ${widgets[$cur_widget]#*:}
eval "_zsh_highlight_widget_${(q)prefix}-${(q)cur_widget}() { _zsh_highlight_call_widget ${(q)prefix}-${(q)cur_widget} -- \"\$@\" }"
zle -N $cur_widget _zsh_highlight_widget_$prefix-$cur_widget;;
# Completion widget: override and rebind old one with prefix "orig-".
completion:*) zle -C $prefix-$cur_widget ${${(s.:.)widgets[$cur_widget]}[2,3]}
eval "_zsh_highlight_widget_${(q)prefix}-${(q)cur_widget}() { _zsh_highlight_call_widget ${(q)prefix}-${(q)cur_widget} -- \"\$@\" }"
zle -N $cur_widget _zsh_highlight_widget_$prefix-$cur_widget;;
# Builtin widget: override and make it call the builtin ".widget".
builtin) eval "_zsh_highlight_widget_${(q)prefix}-${(q)cur_widget}() { _zsh_highlight_call_widget .${(q)cur_widget} -- \"\$@\" }"
zle -N $cur_widget _zsh_highlight_widget_$prefix-$cur_widget;;
# Incomplete or nonexistent widget: Bind to z-sy-h directly.
*)
if [[ $cur_widget == zle-* ]] && (( ! ${+widgets[$cur_widget]} )); then
_zsh_highlight_widget_${cur_widget}() { :; _zsh_highlight }
zle -N $cur_widget _zsh_highlight_widget_$cur_widget
else
# Default: unhandled case.
print -r -- >&2 "zsh-syntax-highlighting: unhandled ZLE widget ${(qq)cur_widget}"
print -r -- >&2 "zsh-syntax-highlighting: (This is sometimes caused by doing \`bindkey <keys> ${(q-)cur_widget}\` without creating the ${(qq)cur_widget} widget with \`zle -N\` or \`zle -C\`.)"
fi
esac
done
}
fi
# Load highlighters from directory.
#
# Arguments:
# 1) Path to the highlighters directory.
_zsh_highlight_load_highlighters()
{
setopt localoptions noksharrays bareglobqual
# Check the directory exists.
[[ -d "$1" ]] || {
print -r -- >&2 "zsh-syntax-highlighting: highlighters directory ${(qq)1} not found."
return 1
}
# Load highlighters from highlighters directory and check they define required functions.
local highlighter highlighter_dir
for highlighter_dir ($1/*/(/)); do
highlighter="${highlighter_dir:t}"
[[ -f "$highlighter_dir${highlighter}-highlighter.zsh" ]] &&
. "$highlighter_dir${highlighter}-highlighter.zsh"
if type "_zsh_highlight_highlighter_${highlighter}_paint" &> /dev/null &&
type "_zsh_highlight_highlighter_${highlighter}_predicate" &> /dev/null;
then
# New (0.5.0) function names
elif type "_zsh_highlight_${highlighter}_highlighter" &> /dev/null &&
type "_zsh_highlight_${highlighter}_highlighter_predicate" &> /dev/null;
then
# Old (0.4.x) function names
if false; then
# TODO: only show this warning for plugin authors/maintainers, not for end users
print -r -- >&2 "zsh-syntax-highlighting: warning: ${(qq)highlighter} highlighter uses deprecated entry point names; please ask its maintainer to update it: https://github.com/zsh-users/zsh-syntax-highlighting/issues/329"
fi
# Make it work.
eval "_zsh_highlight_highlighter_${(q)highlighter}_paint() { _zsh_highlight_${(q)highlighter}_highlighter \"\$@\" }"
eval "_zsh_highlight_highlighter_${(q)highlighter}_predicate() { _zsh_highlight_${(q)highlighter}_highlighter_predicate \"\$@\" }"
else
print -r -- >&2 "zsh-syntax-highlighting: ${(qq)highlighter} highlighter should define both required functions '_zsh_highlight_highlighter_${highlighter}_paint' and '_zsh_highlight_highlighter_${highlighter}_predicate' in ${(qq):-"$highlighter_dir${highlighter}-highlighter.zsh"}."
fi
done
}
# -------------------------------------------------------------------------------------------------
# Setup
# -------------------------------------------------------------------------------------------------
# Try binding widgets.
_zsh_highlight_bind_widgets || {
print -r -- >&2 'zsh-syntax-highlighting: failed binding ZLE widgets, exiting.'
return 1
}
# Resolve highlighters directory location.
_zsh_highlight_load_highlighters "${ZSH_HIGHLIGHT_HIGHLIGHTERS_DIR:-${${0:A}:h}/highlighters}" || {
print -r -- >&2 'zsh-syntax-highlighting: failed loading highlighters, exiting.'
return 1
}
# Reset scratch variables when commandline is done.
_zsh_highlight_preexec_hook()
{
typeset -g _ZSH_HIGHLIGHT_PRIOR_BUFFER=
typeset -gi _ZSH_HIGHLIGHT_PRIOR_CURSOR=
}
autoload -Uz add-zsh-hook
add-zsh-hook preexec _zsh_highlight_preexec_hook 2>/dev/null || {
print -r -- >&2 'zsh-syntax-highlighting: failed loading add-zsh-hook.'
}
# Load zsh/parameter module if available
zmodload zsh/parameter 2>/dev/null || true
# Initialize the array of active highlighters if needed.
[[ $#ZSH_HIGHLIGHT_HIGHLIGHTERS -eq 0 ]] && ZSH_HIGHLIGHT_HIGHLIGHTERS=(main)
if (( $+X_ZSH_HIGHLIGHT_DIRS_BLACKLIST )); then
print >&2 'zsh-syntax-highlighting: X_ZSH_HIGHLIGHT_DIRS_BLACKLIST is deprecated. Please use ZSH_HIGHLIGHT_DIRS_BLACKLIST.'
ZSH_HIGHLIGHT_DIRS_BLACKLIST=($X_ZSH_HIGHLIGHT_DIRS_BLACKLIST)
unset X_ZSH_HIGHLIGHT_DIRS_BLACKLIST
fi
# Restore the aliases we unned
eval "$zsh_highlight__aliases"
builtin unset zsh_highlight__aliases
# Set $?.
true