83 lines
3.7 KiB
Bash
83 lines
3.7 KiB
Bash
#!/usr/bin/env zsh
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# -------------------------------------------------------------------------------------------------
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# Copyright (c) 2010-2011 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[bracket-error]:=fg=red,bold}
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: ${ZSH_HIGHLIGHT_STYLES[bracket-level-1]:=fg=blue,bold}
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: ${ZSH_HIGHLIGHT_STYLES[bracket-level-2]:=fg=green,bold}
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: ${ZSH_HIGHLIGHT_STYLES[bracket-level-3]:=fg=magenta,bold}
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: ${ZSH_HIGHLIGHT_STYLES[bracket-level-4]:=fg=yellow,bold}
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: ${ZSH_HIGHLIGHT_STYLES[bracket-level-5]:=fg=cyan,bold}
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# Whether the brackets highlighter should be called or not.
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_zsh_highlight_brackets_highlighter_predicate()
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{
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_zsh_highlight_cursor_moved || _zsh_highlight_buffer_modified
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}
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# Brackets highlighting function.
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_zsh_highlight_brackets_highlighter()
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{
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bracket_color_size=${#ZSH_HIGHLIGHT_STYLES[(I)bracket-level-*]}
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if ((bracket_color_size > 0)); then
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typeset -A levelpos lastoflevel matching revmatching
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((level = 0))
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for pos in {1..${#BUFFER}}; do
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case $BUFFER[pos] in
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"("|"["|"{")
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levelpos[$pos]=$((++level))
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lastoflevel[$level]=$pos
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;;
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")"|"]"|"}")
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matching[$lastoflevel[$level]]=$pos
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revmatching[$pos]=$lastoflevel[$level]
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levelpos[$pos]=$((level--))
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;;
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esac
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done
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for pos in ${(k)levelpos}; do
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level=$levelpos[$pos]
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if ((level < 1)); then
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region_highlight+=("$((pos - 1)) $pos "$ZSH_HIGHLIGHT_STYLES[bracket-error])
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else
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region_highlight+=("$((pos - 1)) $pos "$ZSH_HIGHLIGHT_STYLES[bracket-level-$(( (level - 1) % bracket_color_size + 1 ))])
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fi
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done
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((c = CURSOR + 1))
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if [[ -n $levelpos[$c] ]]; then
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((otherpos = -1))
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[[ -n $matching[$c] ]] && otherpos=$matching[$c]
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[[ -n $revmatching[$c] ]] && otherpos=$revmatching[$c]
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region_highlight+=("$((otherpos - 1)) $otherpos standout")
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fi
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fi
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}
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