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author | justsaumit <justsaumit@draconyan.xyz> | 2022-03-02 11:23:45 +0530 |
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committer | justsaumit <justsaumit@draconyan.xyz> | 2022-03-02 11:23:45 +0530 |
commit | a754011fc58e83f38cadc5bc10492ab961c9c540 (patch) | |
tree | d7c3cd6fd254fb7e52759f77e44193bf103de177 /.config/zsh/plugins/zsh-syntax-highlighting/highlighters/brackets/brackets-highlighter.zsh | |
parent | 98bbe7bd7fcec209e2408ff0b086858715ca89e0 (diff) |
spring cleaning 0.1
Diffstat (limited to '.config/zsh/plugins/zsh-syntax-highlighting/highlighters/brackets/brackets-highlighter.zsh')
-rw-r--r-- | .config/zsh/plugins/zsh-syntax-highlighting/highlighters/brackets/brackets-highlighter.zsh | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/.config/zsh/plugins/zsh-syntax-highlighting/highlighters/brackets/brackets-highlighter.zsh b/.config/zsh/plugins/zsh-syntax-highlighting/highlighters/brackets/brackets-highlighter.zsh new file mode 100644 index 0000000..bc388fd --- /dev/null +++ b/.config/zsh/plugins/zsh-syntax-highlighting/highlighters/brackets/brackets-highlighter.zsh @@ -0,0 +1,107 @@ +# ------------------------------------------------------------------------------------------------- +# Copyright (c) 2010-2017 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 +# ------------------------------------------------------------------------------------------------- + + +# Define default styles. +: ${ZSH_HIGHLIGHT_STYLES[bracket-error]:=fg=red,bold} +: ${ZSH_HIGHLIGHT_STYLES[bracket-level-1]:=fg=blue,bold} +: ${ZSH_HIGHLIGHT_STYLES[bracket-level-2]:=fg=green,bold} +: ${ZSH_HIGHLIGHT_STYLES[bracket-level-3]:=fg=magenta,bold} +: ${ZSH_HIGHLIGHT_STYLES[bracket-level-4]:=fg=yellow,bold} +: ${ZSH_HIGHLIGHT_STYLES[bracket-level-5]:=fg=cyan,bold} +: ${ZSH_HIGHLIGHT_STYLES[cursor-matchingbracket]:=standout} + +# Whether the brackets highlighter should be called or not. +_zsh_highlight_highlighter_brackets_predicate() +{ + [[ $WIDGET == zle-line-finish ]] || _zsh_highlight_cursor_moved || _zsh_highlight_buffer_modified +} + +# Brackets highlighting function. +_zsh_highlight_highlighter_brackets_paint() +{ + local char style + local -i bracket_color_size=${#ZSH_HIGHLIGHT_STYLES[(I)bracket-level-*]} buflen=${#BUFFER} level=0 matchingpos pos + local -A levelpos lastoflevel matching + + # Find all brackets and remember which one is matching + pos=0 + for char in ${(s..)BUFFER} ; do + (( ++pos )) + case $char in + ["([{"]) + levelpos[$pos]=$((++level)) + lastoflevel[$level]=$pos + ;; + [")]}"]) + if (( level > 0 )); then + matchingpos=$lastoflevel[$level] + levelpos[$pos]=$((level--)) + if _zsh_highlight_brackets_match $matchingpos $pos; then + matching[$matchingpos]=$pos + matching[$pos]=$matchingpos + fi + else + levelpos[$pos]=-1 + fi + ;; + esac + done + + # Now highlight all found brackets + for pos in ${(k)levelpos}; do + if (( $+matching[$pos] )); then + if (( bracket_color_size )); then + _zsh_highlight_add_highlight $((pos - 1)) $pos bracket-level-$(( (levelpos[$pos] - 1) % bracket_color_size + 1 )) + fi + else + _zsh_highlight_add_highlight $((pos - 1)) $pos bracket-error + fi + done + + # If cursor is on a bracket, then highlight corresponding bracket, if any. + if [[ $WIDGET != zle-line-finish ]]; then + pos=$((CURSOR + 1)) + if (( $+levelpos[$pos] )) && (( $+matching[$pos] )); then + local -i otherpos=$matching[$pos] + _zsh_highlight_add_highlight $((otherpos - 1)) $otherpos cursor-matchingbracket + fi + fi +} + +# Helper function to differentiate type +_zsh_highlight_brackets_match() +{ + case $BUFFER[$1] in + \() [[ $BUFFER[$2] == \) ]];; + \[) [[ $BUFFER[$2] == \] ]];; + \{) [[ $BUFFER[$2] == \} ]];; + *) false;; + esac +} |