mirror of
https://github.com/zdharma-continuum/fast-syntax-highlighting.git
synced 2025-02-25 01:29:29 +01:00
357 lines
15 KiB
Bash
357 lines
15 KiB
Bash
# -------------------------------------------------------------------------------------------------
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# Copyright (c) 2010-2016 zsh-syntax-highlighting contributors
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# Copyright (c) 2017-2019 Sebastian Gniazdowski (modifications)
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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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# Standarized way of handling finding plugin dir,
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# regardless of functionargzero and posixargzero,
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# and with an option for a plugin manager to alter
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# the plugin directory (i.e. set ZERO parameter)
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# http://zdharma.org/Zsh-100-Commits-Club/Zsh-Plugin-Standard.html
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0="${${ZERO:-${0:#$ZSH_ARGZERO}}:-${(%):-%N}}"
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0="${${(M)0:#/*}:-$PWD/$0}"
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typeset -g FAST_BASE_DIR="${0:h}"
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typeset -ga _FAST_MAIN_CACHE
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# Holds list of indices pointing at brackets that
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# are complex, i.e. e.g. part of "[[" in [[ ... ]]
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typeset -ga _FAST_COMPLEX_BRACKETS
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typeset -g FAST_WORK_DIR
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: ${FAST_WORK_DIR:=$FAST_BASE_DIR}
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FAST_WORK_DIR=${~FAST_WORK_DIR}
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if [[ -z "$ZPLG_CUR_PLUGIN" && "${fpath[(r)$FAST_BASE_DIR]}" != $FAST_BASE_DIR ]]; then
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fpath+=( "$FAST_BASE_DIR" )
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fi
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if [[ "$FAST_WORK_DIR" = /usr/* || ( "$FAST_WORK_DIR" = /opt/* && ! -w "$FAST_WORK_DIR" ) ]]; then
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FAST_WORK_DIR="${XDG_CACHE_HOME:-$HOME/.cache}/fsh"
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command mkdir -p "$FAST_WORK_DIR"
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fi
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# Invokes each highlighter that needs updating.
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# This function is supposed to be called whenever the ZLE state changes.
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_zsh_highlight()
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{
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# Store the previous command return code to restore it whatever happens.
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local ret=$?
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# Remove all highlighting in isearch, so that only the underlining done by zsh itself remains.
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# For details see FAQ entry 'Why does syntax highlighting not work while searching history?'.
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if [[ $WIDGET == zle-isearch-update ]] && ! (( $+ISEARCHMATCH_ACTIVE )); then
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region_highlight=()
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return $ret
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fi
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setopt localoptions warncreateglobal noksharrays noshwordsplit extendedglob typesetsilent nokshglob
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local REPLY # don't leak $REPLY into global scope
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local -a reply
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# Do not highlight if there are more than 300 chars in the buffer. It's most
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# likely a pasted command or a huge list of files in that case..
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[[ -n ${ZSH_HIGHLIGHT_MAXLENGTH:-} ]] && [[ $#BUFFER -gt $ZSH_HIGHLIGHT_MAXLENGTH ]] && return $ret
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# Do not highlight if there are pending inputs (copy/paste).
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[[ $PENDING -gt 0 ]] && return $ret
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# Reset region highlight to build it from scratch
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# may need to remove path_prefix highlighting when the line ends
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if [[ $WIDGET == zle-line-finish ]] || _zsh_highlight_buffer_modified; then
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-fast-highlight-init
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-fast-highlight-process "$PREBUFFER" "$BUFFER" 0
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(( FAST_HIGHLIGHT[use_brackets] )) && {
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_FAST_MAIN_CACHE=( $reply )
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-fast-highlight-string-process "$PREBUFFER" "$BUFFER"
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}
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region_highlight=( $reply )
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else
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local char="${BUFFER[CURSOR+1]}"
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if [[ "$char" = ["{([])}"] || "${FAST_HIGHLIGHT[prev_char]}" = ["{([])}"] ]]; then
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FAST_HIGHLIGHT[prev_char]="$char"
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(( FAST_HIGHLIGHT[use_brackets] )) && {
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reply=( $_FAST_MAIN_CACHE )
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-fast-highlight-string-process "$PREBUFFER" "$BUFFER"
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region_highlight=( $reply )
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}
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fi
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fi
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{
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local cache_place
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local -a region_highlight_copy
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# Re-apply zle_highlight settings
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# region
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if (( REGION_ACTIVE == 1 )); then
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_zsh_highlight_apply_zle_highlight region standout "$MARK" "$CURSOR"
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elif (( REGION_ACTIVE == 2 )); then
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() {
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local needle=$'\n'
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integer min max
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if (( MARK > CURSOR )) ; then
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min=$CURSOR max=$(( MARK + 1 ))
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else
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min=$MARK max=$CURSOR
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fi
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(( min = ${${BUFFER[1,$min]}[(I)$needle]} ))
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(( max += ${${BUFFER:($max-1)}[(i)$needle]} - 1 ))
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_zsh_highlight_apply_zle_highlight region standout "$min" "$max"
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}
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fi
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# yank / paste (zsh-5.1.1 and newer)
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(( $+YANK_ACTIVE )) && (( YANK_ACTIVE )) && _zsh_highlight_apply_zle_highlight paste standout "$YANK_START" "$YANK_END"
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# isearch
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(( $+ISEARCHMATCH_ACTIVE )) && (( ISEARCHMATCH_ACTIVE )) && _zsh_highlight_apply_zle_highlight isearch underline "$ISEARCHMATCH_START" "$ISEARCHMATCH_END"
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# suffix
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(( $+SUFFIX_ACTIVE )) && (( SUFFIX_ACTIVE )) && _zsh_highlight_apply_zle_highlight suffix bold "$SUFFIX_START" "$SUFFIX_END"
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return $ret
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} always {
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typeset -g _ZSH_HIGHLIGHT_PRIOR_BUFFER="$BUFFER"
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typeset -g _ZSH_HIGHLIGHT_PRIOR_RACTIVE="$REGION_ACTIVE"
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typeset -gi _ZSH_HIGHLIGHT_PRIOR_CURSOR=$CURSOR
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}
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}
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# Apply highlighting based on entries in the zle_highlight array.
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# This function takes four arguments:
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# 1. The exact entry (no patterns) in the zle_highlight array:
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# region, paste, isearch, or suffix
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# 2. The default highlighting that should be applied if the entry is unset
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# 3. and 4. Two integer values describing the beginning and end of the
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# range. The order does not matter.
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_zsh_highlight_apply_zle_highlight() {
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local entry="$1" default="$2"
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integer first="$3" second="$4"
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# read the relevant entry from zle_highlight
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local region="${zle_highlight[(r)${entry}:*]}"
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if [[ -z "$region" ]]; then
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# entry not specified at all, use default value
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region=$default
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else
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# strip prefix
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region="${region#${entry}:}"
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# no highlighting when set to the empty string or to 'none'
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if [[ -z "$region" ]] || [[ "$region" == none ]]; then
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return
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fi
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fi
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integer start end
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if (( first < second )); then
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start=$first end=$second
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else
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start=$second end=$first
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fi
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region_highlight+=("$start $end $region")
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}
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# -------------------------------------------------------------------------------------------------
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# API/utility functions for highlighters
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# -------------------------------------------------------------------------------------------------
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# Whether the command line buffer has been modified or not.
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#
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# Returns 0 if the buffer has changed since _zsh_highlight was last called.
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_zsh_highlight_buffer_modified()
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{
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[[ "${_ZSH_HIGHLIGHT_PRIOR_BUFFER:-}" != "$BUFFER" ]] || [[ "$REGION_ACTIVE" != "$_ZSH_HIGHLIGHT_PRIOR_RACTIVE" ]] || { _zsh_highlight_cursor_moved && [[ "$REGION_ACTIVE" = 1 || "$REGION_ACTIVE" = 2 ]] }
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}
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# Whether the cursor has moved or not.
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#
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# Returns 0 if the cursor has moved since _zsh_highlight was last called.
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_zsh_highlight_cursor_moved()
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{
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[[ -n $CURSOR ]] && [[ -n ${_ZSH_HIGHLIGHT_PRIOR_CURSOR-} ]] && (($_ZSH_HIGHLIGHT_PRIOR_CURSOR != $CURSOR))
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}
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# -------------------------------------------------------------------------------------------------
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# Setup functions
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# -------------------------------------------------------------------------------------------------
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# Helper for _zsh_highlight_bind_widgets
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# $1 is name of widget to call
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_zsh_highlight_call_widget()
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{
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integer ret
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builtin zle "$@"
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ret=$?
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_zsh_highlight
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return $ret
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}
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# Rebind all ZLE widgets to make them invoke _zsh_highlights.
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_zsh_highlight_bind_widgets()
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{
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setopt localoptions noksharrays
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local -F2 SECONDS
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local prefix=orig-s${SECONDS/./}-r$(( RANDOM % 1000 )) # unique each time, in case we're sourced more than once
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# Load ZSH module zsh/zleparameter, needed to override user defined widgets.
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zmodload zsh/zleparameter 2>/dev/null || {
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print -r -- >&2 'zsh-syntax-highlighting: failed loading zsh/zleparameter.'
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return 1
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}
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# Override ZLE widgets to make them invoke _zsh_highlight.
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local -U widgets_to_bind
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widgets_to_bind=(${${(k)widgets}:#(.*|run-help|which-command|beep|set-local-history|yank)})
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# Always wrap special zle-line-finish widget. This is needed to decide if the
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# current line ends and special highlighting logic needs to be applied.
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# E.g. remove cursor imprint, don't highlight partial paths, ...
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widgets_to_bind+=(zle-line-finish)
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# Always wrap special zle-isearch-update widget to be notified of updates in isearch.
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# This is needed because we need to disable highlighting in that case.
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widgets_to_bind+=(zle-isearch-update)
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local cur_widget
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for cur_widget in $widgets_to_bind; do
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case $widgets[$cur_widget] in
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# Already rebound event: do nothing.
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user:_zsh_highlight_widget_*);;
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# The "eval"'s are required to make $cur_widget a closure: the value of the parameter at function
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# definition time is used.
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#
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# We can't use ${0/_zsh_highlight_widget_} because these widgets are always invoked with
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# NO_function_argzero, regardless of the option's setting here.
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# User defined widget: override and rebind old one with prefix "orig-".
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user:*) zle -N -- $prefix-$cur_widget ${widgets[$cur_widget]#*:}
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eval "_zsh_highlight_widget_${(q)prefix}-${(q)cur_widget}() { _zsh_highlight_call_widget ${(q)prefix}-${(q)cur_widget} -- \"\$@\" }"
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zle -N -- $cur_widget _zsh_highlight_widget_$prefix-$cur_widget;;
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# Completion widget: override and rebind old one with prefix "orig-".
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completion:*) zle -C $prefix-$cur_widget ${${(s.:.)widgets[$cur_widget]}[2,3]}
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eval "_zsh_highlight_widget_${(q)prefix}-${(q)cur_widget}() { _zsh_highlight_call_widget ${(q)prefix}-${(q)cur_widget} -- \"\$@\" }"
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zle -N -- $cur_widget _zsh_highlight_widget_$prefix-$cur_widget;;
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# Builtin widget: override and make it call the builtin ".widget".
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builtin) eval "_zsh_highlight_widget_${(q)prefix}-${(q)cur_widget}() { _zsh_highlight_call_widget .${(q)cur_widget} -- \"\$@\" }"
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zle -N -- $cur_widget _zsh_highlight_widget_$prefix-$cur_widget;;
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# Incomplete or nonexistent widget: Bind to z-sy-h directly.
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*)
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if [[ $cur_widget == zle-* ]] && [[ -z $widgets[$cur_widget] ]]; then
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_zsh_highlight_widget_${cur_widget}() { :; _zsh_highlight }
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zle -N -- $cur_widget _zsh_highlight_widget_$cur_widget
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else
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# Default: unhandled case.
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print -r -- >&2 "zsh-syntax-highlighting: unhandled ZLE widget ${(qq)cur_widget}"
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fi
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esac
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done
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}
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# -------------------------------------------------------------------------------------------------
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# Setup
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# -------------------------------------------------------------------------------------------------
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# Try binding widgets.
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_zsh_highlight_bind_widgets || {
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print -r -- >&2 'zsh-syntax-highlighting: failed binding ZLE widgets, exiting.'
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return 1
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}
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# Reset scratch variables when commandline is done.
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_zsh_highlight_preexec_hook()
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{
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typeset -g _ZSH_HIGHLIGHT_PRIOR_BUFFER=
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typeset -gi _ZSH_HIGHLIGHT_PRIOR_CURSOR=0
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typeset -ga _FAST_MAIN_CACHE
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_FAST_MAIN_CACHE=()
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}
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autoload -Uz add-zsh-hook
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add-zsh-hook preexec _zsh_highlight_preexec_hook 2>/dev/null || {
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print -r -- >&2 'zsh-syntax-highlighting: failed loading add-zsh-hook.'
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}
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/fshdbg() {
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print -r -- "$@" >>! /tmp/reply
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}
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ZSH_HIGHLIGHT_MAXLENGTH=10000
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# Load zsh/parameter module if available
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zmodload zsh/parameter 2>/dev/null
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zmodload zsh/system 2>/dev/null
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autoload -Uz -- is-at-least fast-theme fast-read-ini-file -fast-run-git-command -fast-make-targets \
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-fast-run-command -fast-zts-read-all
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autoload -Uz -- :chroma/-git.ch :chroma/-hub.ch :chroma/-lab.ch :chroma/-example.ch \
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:chroma/-grep.ch :chroma/-perl.ch :chroma/-make.ch :chroma/-awk.ch \
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:chroma/-vim.ch :chroma/-source.ch :chroma/-sh.ch :chroma/-docker.ch \
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:chroma/-autoload.ch :chroma/-ssh.ch :chroma/-scp.ch :chroma/-which.ch \
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:chroma/-printf.ch :chroma/-ruby.ch :chroma/-whatis.ch :chroma/-alias.ch \
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:chroma/-subcommand.ch :chroma/-autorandr.ch :chroma/-nmcli.ch \
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:chroma/-fast-theme.ch :chroma/-node.ch :chroma/-fpath_peq.ch \
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:chroma/-precommand.ch :chroma/-subversion.ch :chroma/-ionice.ch \
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:chroma/-nice.ch :chroma/main-chroma.ch :chroma/-ogit.ch :chroma/-zplugin.ch
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source "${0:h}/fast-highlight"
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source "${0:h}/fast-string-highlight"
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local __fsyh_theme
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zstyle -s :plugin:fast-syntax-highlighting theme __fsyh_theme
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[[ ( "${+termcap}" != 1 || "${termcap[Co]}" != <-> || "${termcap[Co]}" -lt "256" ) && "$__fsyh_theme" = (default|) ]] && {
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FAST_HIGHLIGHT_STYLES[defaultvariable]="none"
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FAST_HIGHLIGHT_STYLES[defaultglobbing-ext]="fg=blue,bold"
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FAST_HIGHLIGHT_STYLES[defaulthere-string-text]="bg=blue"
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FAST_HIGHLIGHT_STYLES[defaulthere-string-var]="fg=cyan,bg=blue"
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FAST_HIGHLIGHT_STYLES[defaultcorrect-subtle]="bg=blue"
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FAST_HIGHLIGHT_STYLES[defaultsubtle-bg]="bg=blue"
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[[ "${FAST_HIGHLIGHT_STYLES[variable]}" = "fg=113" ]] && FAST_HIGHLIGHT_STYLES[variable]="none"
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[[ "${FAST_HIGHLIGHT_STYLES[globbing-ext]}" = "fg=13" ]] && FAST_HIGHLIGHT_STYLES[globbing-ext]="fg=blue,bold"
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[[ "${FAST_HIGHLIGHT_STYLES[here-string-text]}" = "bg=18" ]] && FAST_HIGHLIGHT_STYLES[here-string-text]="bg=blue"
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[[ "${FAST_HIGHLIGHT_STYLES[here-string-var]}" = "fg=cyan,bg=18" ]] && FAST_HIGHLIGHT_STYLES[here-string-var]="fg=cyan,bg=blue"
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[[ "${FAST_HIGHLIGHT_STYLES[correct-subtle]}" = "fg=12" ]] && FAST_HIGHLIGHT_STYLES[correct-subtle]="bg=blue"
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[[ "${FAST_HIGHLIGHT_STYLES[subtle-bg]}" = "bg=18" ]] && FAST_HIGHLIGHT_STYLES[subtle-bg]="bg=blue"
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}
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unset __fsyh_theme
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alias fsh-alias=fast-theme
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-fast-highlight-fill-option-variables
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