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#!/usr/bin/env zsh
# ------------------------------------------------------------------------------
# Fish style live command coloring.
# ------------------------------------------------------------------------------
# Token types styles.
# See http://zsh.sourceforge.net/Doc/Release/Zsh-Line-Editor.html#SEC135
ZLE_RESERVED_WORD_STYLE='bold'
ZLE_ALIAS_STYLE='bold'
ZLE_BUILTIN_STYLE='bold'
ZLE_FUNCTION_STYLE='bold'
ZLE_COMMAND_STYLE='bold'
ZLE_COMMAND_UNKNOWN_TOKEN_STYLE='fg=red,bold'
ZLE_TOKENS_FOLLOWED_BY_COMMANDS=('|' '||' ';' '&' '&&' 'sudo' 'start' 'time' 'strace')
# Recolorize the current ZLE buffer.
colorize-zle-buffer() {
region_highlight=()
colorize=true
start_pos=0
for arg in ${(z)BUFFER}; do
((start_pos+=${#BUFFER[$start_pos+1,-1]}-${#${BUFFER[$start_pos+1,-1]## #}}))
((end_pos=$start_pos+${#arg}))
if $colorize; then
colorize=false
res=$(LC_ALL=C builtin type $arg 2>/dev/null)
case $res in
*'reserved word'*) style=$ZLE_RESERVED_WORD_STYLE;;
*'an alias'*) style=$ZLE_ALIAS_STYLE;;
*'shell builtin'*) style=$ZLE_BUILTIN_STYLE;;
*'shell function'*) style=$ZLE_FUNCTION_STYLE;;
*"$cmd is"*) style=$ZLE_COMMAND_STYLE;;
*) style=$ZLE_COMMAND_UNKNOWN_TOKEN_STYLE;;
esac
region_highlight+=("$start_pos $end_pos $style")
fi
[[ ${${ZLE_TOKENS_FOLLOWED_BY_COMMANDS[(r)${arg//|/\|}]}:+yes} = 'yes' ]] && colorize=true
start_pos=$end_pos
done
}
# Bind the function to ZLE events.
colorize-hook-self-insert() { builtin zle .self-insert && colorize-zle-buffer }
colorize-hook-backward-delete-char() { builtin zle .backward-delete-char && colorize-zle-buffer }
zle -N self-insert colorize-hook-self-insert
zle -N backward-delete-char colorize-hook-backward-delete-char
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