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138 lines
6.2 KiB
138 lines
6.2 KiB
# -*- mode: sh; sh-indentation: 4; indent-tabs-mode: nil; sh-basic-offset: 4; -*-
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# -------------------------------------------------------------------------------------------------
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# Copyright (c) 2018 Sebastian Gniazdowski
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# Copyright (C) 2019 by Philippe Troin (F-i-f on GitHub)
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# All rights reserved.
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#
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# The only licensing for this file follows.
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#
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# Redistribution and use in source and binary forms, with or without modification, are permitted
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# provided that the following conditions are met:
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#
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# * Redistributions of source code must retain the above copyright notice, this list of conditions
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# and the following disclaimer.
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# * Redistributions in binary form must reproduce the above copyright notice, this list of
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# conditions and the following disclaimer in the documentation and/or other materials provided
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# with the distribution.
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# * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
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# may be used to endorse or promote products derived from this software without specific prior
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# written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
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# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
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# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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# -------------------------------------------------------------------------------------------------
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setopt local_options extendedglob warn_create_global typeset_silent
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# Keep chroma-takever state meaning: until ;, handle highlighting via chroma.
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# So the below 8192 assignment takes care that next token will be routed to chroma.
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(( next_word = 2 | 8192 ))
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local __first_call="$1" __wrd="$2" __start_pos="$3" __end_pos="$4"
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local __style option_start=0 option_end=0 number_start=0 number_end=0
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local -a match mbegin mend
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(( __first_call )) && {
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# Called for the first time - new command.
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# FAST_HIGHLIGHT is used because it survives between calls, and
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# allows to use a single global hash only, instead of multiple
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# global string variables.
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FAST_HIGHLIGHT[nice-arg-count]=0
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FAST_HIGHLIGHT[nice-increment-argument]=0
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# Set style for region_highlight entry. It is used below in
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# '[[ -n "$__style" ]] ...' line, which adds highlight entry,
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# like "10 12 fg=green", through `reply' array.
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#
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# Could check if command `example' exists and set `unknown-token'
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# style instead of `command'
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__style=${FAST_THEME_NAME}precommand
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} || {
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# Following call, i.e. not the first one
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# Check if chroma should end – test if token is of type
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# "starts new command", if so pass-through – chroma ends
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[[ "$__arg_type" = 3 ]] && return 2
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if (( in_redirection > 0 || this_word & 128 )) || [[ $__wrd == "<<<" ]]; then
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return 1
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fi
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if (( FAST_HIGHLIGHT[nice-increment-argument] )); then
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(( FAST_HIGHLIGHT[nice-increment-argument] = 0 ))
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[[ $__wrd = (-|+|)[0-9]## ]] \
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&& __style=${FAST_THEME_NAME}mathnum \
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|| __style=${FAST_THEME_NAME}incorrect-subtle
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else
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case $__wrd in
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-(-|+|)[0-9]##)
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(( option_start = __start_pos-${#PREBUFFER} ,
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option_end = option_start+1 ,
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number_start = option_end ,
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number_end = __end_pos-${#PREBUFFER} ))
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option_style=${FAST_THEME_NAME}single-hyphen-option
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;;
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(#b)(--adjustment)(=(-|+|)[0-9]#|))
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(( option_start = __start_pos-${#PREBUFFER} ,
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option_end = option_start+mend[1] ))
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option_style=${FAST_THEME_NAME}double-hyphen-option
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[[ -z $match[2] ]] \
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&& (( FAST_HIGHLIGHT[nice-increment-argument] = 1 )) \
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|| (( option_end += 1 ,
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number_start = option_start+mbegin[2]-mbegin[1]+1 ,
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number_end = __end_pos-${#PREBUFFER} ))
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;;
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-n)
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__style=${FAST_THEME_NAME}double-hyphen-option
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FAST_HIGHLIGHT[nice-increment-argument]=1
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;;
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--*)
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__style=${FAST_THEME_NAME}double-hyphen-option
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;;
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-*)
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__style=${FAST_THEME_NAME}single-hyphen-option
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;;
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*)
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this_word=1
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next_word=2
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return 1
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;;
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esac
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(( option_start > 0 && option_end )) \
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&& reply+=("$option_start $option_end ${FAST_HIGHLIGHT_STYLES[$option_style]}")
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(( number_start > 0 && number_end )) \
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&& reply+=("$number_start $number_end ${FAST_HIGHLIGHT_STYLES[${FAST_THEME_NAME}mathnum]}")
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fi
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}
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# Add region_highlight entry (via `reply' array).
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# If 1 will be added to __start_pos, this will highlight "oken".
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# If 1 will be subtracted from __end_pos, this will highlight "toke".
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# $PREBUFFER is for specific situations when users does command \<ENTER>
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# i.e. when multi-line command using backslash is entered.
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#
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# This is a common place of adding such entry, but any above code can do
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# it itself (and it does in other chromas) and skip setting __style to
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# this way disable this code.
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[[ -n "$__style" ]] && (( __start=__start_pos-${#PREBUFFER}, __end=__end_pos-${#PREBUFFER}, __start >= 0 )) && reply+=("$__start $__end ${FAST_HIGHLIGHT_STYLES[$__style]}")
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# We aren't passing-through, do obligatory things ourselves.
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# _start_pos=$_end_pos advainces pointers in command line buffer.
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#
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# To pass through means to `return 1'. The highlighting of
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# this single token is then done by fast-syntax-highlighting's
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# main code and chroma doesn't have to do anything.
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(( this_word = next_word ))
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_start_pos=$_end_pos
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return 0
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# vim:ft=zsh:et:sw=4
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