inital commit of clone of old repo

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Contegix Support
2015-04-12 18:06:28 -05:00
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zsh-syntax-highlighting / highlighters / brackets
=================================================
This is the ***brackets*** highlighter, that highlights brackets, parenthesis and matches them.
How to activate it
------------------
To activate it, add it to `ZSH_HIGHLIGHT_HIGHLIGHTERS`:
ZSH_HIGHLIGHT_HIGHLIGHTERS=( [...] brackets)
How to tweak it
---------------
This highlighter defines the following styles:
* `bracket-error` - unmatched brackets
* `bracket-level-N` - brackets with nest level N
To override one of those styles, change its entry in `ZSH_HIGHLIGHT_STYLES`, for example in `~/.zshrc`:
# To define styles for nested brackets up to level 4
ZSH_HIGHLIGHT_STYLES[bracket-level-1]='fg=blue,bold'
ZSH_HIGHLIGHT_STYLES[bracket-level-2]='fg=red,bold'
ZSH_HIGHLIGHT_STYLES[bracket-level-3]='fg=yellow,bold'
ZSH_HIGHLIGHT_STYLES[bracket-level-4]='fg=magenta,bold'
The syntax for declaring styles is [documented here](http://zsh.sourceforge.net/Doc/Release/Zsh-Line-Editor.html#SEC135).

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