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# -*- mode: sh; sh-indentation: 4; indent-tabs-mode: nil; sh-basic-offset: 4; -*-
# Copyright (c) 2018 Sebastian Gniazdowski
#
# This chroma does a narrow, obscure but prestigious parsing of fpath+=( elem1
# elem2 ... ) construct to provide *the* *future* contents of $fpath to
# -autoload.ch, so that it can detect functions in those provided directories
# `elem1', `elem2', etc. and highlight the functions with `correct-subtle'
# instead of `incorrect-subtle'. Basically all thit is for command-lines like:
#
# % fpath+=( `pwd` ); autoload my-fun-from-PWD
# Keep chroma-takever state meaning: until ; or similar (see $__arg_type below)
# The 8192 sum takes care that the next token will be routed to this chroma
(( next_word = 2 | 8192 ))
local __first_call="$1" __wrd="$2" __start_pos="$3" __end_pos="$4"
local -a deserialized
(( __first_call )) && {
case $__wrd in
(fpath=\()
FAST_HIGHLIGHT[fpath_peq_mode]=1
;;
(fpath+=\()
FAST_HIGHLIGHT[fpath_peq_mode]=2
;;
(FPATH=)
FAST_HIGHLIGHT[fpath_peq_mode]=4
;;
(FPATH+=)
FAST_HIGHLIGHT[fpath_peq_mode]=8
;;
esac
if (( FAST_HIGHLIGHT[fpath_peq_mode] & 5 )); then
FAST_HIGHLIGHT[chroma-fpath_peq-elements]="! ${FAST_HIGHLIGHT[chroma-fpath_peq-elements]}"
fi
return 1
} || {
# Following call, i.e. not the first one
# Check if chroma should end – test if token is of type
# "starts new command", if so pass-through – chroma ends
[[ "$__arg_type" = 3 ]] && return 2
[[ "$__wrd" != ")" ]] && {
deserialized=( "${(Q@)${(z@)FAST_HIGHLIGHT[chroma-fpath_peq-elements]}}" )
[[ -z "${deserialized[1]}" && ${#deserialized} -eq 1 ]] && deserialized=()
# Support ~ and $VAR, for [a-zA-Z_][a-ZA-Z0-9_]# characters in "VAR"
deserialized+=( "${(Q)${${(j: :)__wrd}//(#b)((\$([0-9]##|[a-zA-Z_][a-zA-Z0-9_]#))|(\$\{([0-9]##|[a-zA-Z_][a-zA-Z0-9_]#)\})|(#s)~)/${(P)${${${${match[1]##\$\{(#c0,1)}%\}}:#\~}:-HOME}}}}" )
FAST_HIGHLIGHT[chroma-fpath_peq-elements]="${(j: :)${(q@)deserialized}}"
}
return 1
}
(( this_word = next_word ))
_start_pos=$_end_pos
return 0
# vim:ft=zsh:et:sw=4