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add cursor-containing-brackets style

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This commit is contained in:
Roland Walker 2020-11-10 16:43:11 -05:00
parent 66d1d202d4
commit 1ba2458aee
1 changed files with 25 additions and 4 deletions
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29
highlighters/brackets/brackets-highlighter.zsh
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@ -36,6 +36,7 @@
: ${ZSH_HIGHLIGHT_STYLES[bracket-level-4]:=fg=yellow,bold}
: ${ZSH_HIGHLIGHT_STYLES[bracket-level-5]:=fg=cyan,bold}
: ${ZSH_HIGHLIGHT_STYLES[cursor-matchingbracket]:=standout}
: ${ZSH_HIGHLIGHT_STYLES[cursor-containing-brackets]:=}
# Whether the brackets highlighter should be called or not.
_zsh_highlight_highlighter_brackets_predicate()
@ -48,7 +49,7 @@ _zsh_highlight_highlighter_brackets_paint()
{
local char style
local -i bracket_color_size=${#ZSH_HIGHLIGHT_STYLES[(I)bracket-level-*]} buflen=${#BUFFER} escaped_state level=0 matchingpos pos
local -A levelpos lastoflevel matching
local -A containing levelpos lastoflevel matching
# Find all brackets and remember which one is matching
pos=0
@ -57,29 +58,37 @@ _zsh_highlight_highlighter_brackets_paint()
(( ++pos ))
if [[ $char = "\\" ]]; then
(( escaped_state = !escaped_state ))
containing[$pos]=$containing[$(( pos - 1 ))]
continue
fi
case $char in
["([{"])
if (( ! escaped_state )); then
if (( escaped_state )); then
containing[$pos]=$containing[$(( pos - 1 ))]
else
levelpos[$pos]=$((++level))
lastoflevel[$level]=$pos
containing[$pos]=$pos
fi
;;
[")]}"])
if (( escaped_state )); then
:
containing[$pos]=$containing[$(( pos - 1 ))]
elif (( level > 0 )); then
matchingpos=$lastoflevel[$level]
levelpos[$pos]=$((level--))
if _zsh_highlight_brackets_match $matchingpos $pos; then
matching[$matchingpos]=$pos
matching[$pos]=$matchingpos
containing[$pos]=containing[$(( matchingpos - 1))]
fi
else
levelpos[$pos]=-1
containing[$pos]=$containing[$(( pos - 1 ))]
fi
;;
*)
containing[$pos]=$containing[$(( pos - 1 ))]
esac
escaped_state=0
done
@ -95,13 +104,25 @@ _zsh_highlight_highlighter_brackets_paint()
fi
done
# If cursor is on a bracket, then highlight corresponding bracket, if any.
if [[ $WIDGET != zle-line-finish ]]; then
# If cursor is on a bracket, then highlight corresponding bracket, if any.
pos=$((CURSOR + 1))
if (( $+levelpos[$pos] )) && (( $+matching[$pos] )); then
local -i otherpos=$matching[$pos]
_zsh_highlight_add_highlight $((otherpos - 1)) $otherpos cursor-matchingbracket
fi
if [[ -n $ZSH_HIGHLIGHT_STYLES[cursor-containing-brackets] ]]; then
# If cursor is inside a balanced pair, highlight the pair
pos=$CURSOR
if (( containing[$pos] > 0 )); then
local -i opener=$containing[$pos]
local -i closer=$matching[$opener]
if (( closer )); then
_zsh_highlight_add_highlight $((opener - 1)) $opener cursor-containing-brackets
_zsh_highlight_add_highlight $((closer - 1)) $closer cursor-containing-brackets
fi
fi
fi
fi
}