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live-command-coloring.sh
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#!/bin/zsh
 
# Copyleft 2010 paradoxxxzero All wrongs reserved
# With contribution from James Ahlborn
# https://gist.github.com/752727
# Fork of https://gist.github.com/586698 by nicoulaj / dingram / roylzuo ...
# From http://www.zsh.org/mla/users/2010/msg00692.html
 
# Token types styles.
# See http://zsh.sourceforge.net/Doc/Release/Zsh-Line-Editor.html#SEC135
ZLE_RESERVED_WORD_STYLE='fg=yellow,bold'
ZLE_ALIAS_STYLE='fg=magenta,bold'
ZLE_BUILTIN_STYLE='fg=cyan,bold'
ZLE_FUNCTION_STYLE='fg=blue,bold'
ZLE_COMMAND_STYLE='fg=green,bold'
ZLE_COMMAND_UNKNOWN_TOKEN_STYLE='fg=red,bold'
 
ZLE_HYPHEN_CLI_OPTION='fg=yellow,bold'
ZLE_DOUBLE_HYPHEN_CLI_OPTION='fg=green,bold'
ZLE_SINGLE_QUOTED='fg=magenta,bold'
ZLE_DOUBLE_QUOTED='fg=red,bold'
ZLE_BACK_QUOTED='fg=cyan,bold'
ZLE_GLOBING='fg=blue,bold'
 
ZLE_DEFAULT='fg=white,bold'
 
ZLE_TOKENS_FOLLOWED_BY_COMMANDS=('|' '||' ';' '&' '&&' 'sudo' 'start' 'time' 'strace' 'ยง')
 
# 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
else
case $arg in
'--'*) style=$ZLE_DOUBLE_HYPHEN_CLI_OPTION;;
'-'*) style=$ZLE_HYPHEN_CLI_OPTION;;
"'"*"'") style=$ZLE_SINGLE_QUOTED;;
'"'*'"') style=$ZLE_DOUBLE_QUOTED;;
'`'*'`') style=$ZLE_BACK_QUOTED;;
*"*"*) style=$ZLE_GLOBING;;
*) style=$ZLE_DEFAULT;;
esac
fi
region_highlight+=("$start_pos $end_pos $style")
[[ ${${ZLE_TOKENS_FOLLOWED_BY_COMMANDS[(r)${arg//|/\|}]}:+yes} = 'yes' ]] && colorize=true
start_pos=$end_pos
done
}
 
# Bind the function to ZLE events.
ZLE_COLORED_FUNCTIONS=(
self-insert
delete-char
backward-delete-char
kill-word
backward-kill-word
up-line-or-history
down-line-or-history
beginning-of-history
end-of-history
undo
redo
yank
)
 
for f in $ZLE_COLORED_FUNCTIONS; do
eval "$f() { zle .$f && colorize-zle-buffer } ; zle -N $f"
done
 
# Expand or complete hack
# Thanks to James Ahlborn :
 
# create an expansion widget which mimics the original "expand-or-complete" (you can see the default setup using "zle -l -L")
zle -C orig-expand-or-complete .expand-or-complete _main_complete
 
# use the orig-expand-or-complete inside the colorize function (for some reason, using the ".expand-or-complete" widget doesn't work the same)
expand-or-complete() { builtin zle orig-expand-or-complete && colorize-zle-buffer }
zle -N expand-or-complete

I had to edit one line to fix this bug
((start_pos+=${#BUFFER[$start_pos+1,-1]}-${#${BUFFER[$start_pos+1,-1]## #}}))
became
((start_pos+=${#BUFFER[$start_pos,-1]}-${#${BUFFER[$start_pos+1,-1]## #}}))

Very strange, I have your bug (color shift is inverted though) when I apply your patch.
Are you sure your prompt doesn't confuse zsh ?
Your colors are all %{%} escaped ?

.Xdefaults : http://ix.io/1ld
.zshrc : http://ix.io/1le
rxvt-unicode...

Hi, just to say I created a project and added everyone who made changes as author:
https://github.com/nicoulaj/zsh-syntax-highlighting

It will be easier for people than tracking the most up-to-date fork :)

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