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89 lines
3.7 KiB
89 lines
3.7 KiB
# -*- mode: sh; sh-indentation: 4; indent-tabs-mode: nil; sh-basic-offset: 4; -*-
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# Copyright (c) 2018 Sebastian Gniazdowski
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#
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# $1 - 0 or 1, denoting if it's first call to the chroma, or following one
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#
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# $2 - the current token, also accessible by $__arg from the above scope -
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# basically a private copy of $__arg; the token can be eg.: "grep"
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#
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# $3 - a private copy of $_start_pos, i.e. the position of the token in the
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# command line buffer, used to add region_highlight entry (see man),
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# because Zsh colorizes by *ranges* in command line buffer
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#
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# $4 - a private copy of $_end_pos from the above scope
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#
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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 __chars
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integer __idx1 __idx2
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# First call, i.e. command starts, i.e. "grep" token etc.
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(( __first_call )) && {
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FAST_HIGHLIGHT[chroma-grep-counter]=0
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return 1
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} || {
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# Following call, i.e. not the first one.
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if (( in_redirection > 0 || this_word & 128 )) || [[ $__wrd == "<<<" ]]; then
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return 1
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fi
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# Check if chroma should end – test if token is of type
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# "starts new command", if so pass-through – chroma ends
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[[ "$__arg_type" = 3 ]] && return 2
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if [[ "$__wrd" = -* ]]; then
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# Detected option, add style for it.
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[[ "$__wrd" = --* ]] && __style=${FAST_THEME_NAME}double-hyphen-option || \
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__style=${FAST_THEME_NAME}single-hyphen-option
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else
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# Count non-option tokens.
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(( FAST_HIGHLIGHT[chroma-grep-counter] += 1, __idx1 = FAST_HIGHLIGHT[chroma-grep-counter] ))
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# First non-option token is the pattern (regex), we will
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# highlight it.
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if (( FAST_HIGHLIGHT[chroma-grep-counter] == 1 )); then
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[[ "$__wrd" = \"* ]] && __style=${FAST_THEME_NAME}double-quoted-argument
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[[ "$__wrd" = \'* ]] && __style=${FAST_THEME_NAME}single-quoted-argument
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[[ "$__wrd" = \$\'* ]] && __style=${FAST_THEME_NAME}dollar-quoted-argument
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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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__style=""
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__chars="*+\\)([]^\$"
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__idx1=__start_pos
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__idx2=__start_pos
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while [[ "$__wrd" = (#b)[^$__chars]#([\\][\\])#((+|\*|\[|\]|\)|\(|\^|\$)|[\\](+|\*|\[|\]|\)|\(|\^|\$))(*) ]]; do
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if [[ -n "${match[3]}" ]]; then
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__idx1+=${mbegin[3]}-1
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__idx2=__idx1+${mend[3]}-${mbegin[3]}+1
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(( __start=__idx1-${#PREBUFFER}, __end=__idx2-${#PREBUFFER}, __start >= 0 )) && reply+=("$__start $__end ${FAST_HIGHLIGHT_STYLES[${FAST_THEME_NAME}for-loop-operator]}")
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__idx1=__idx2
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else
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__idx1+=${mbegin[5]}-1
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fi
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__wrd="${match[5]}"
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done
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elif (( FAST_HIGHLIGHT[chroma-grep-counter] == 2 )); then
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# Handle paths, etc. normally - just pass-through to the big
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# highlighter (the main FSH highlighter, used before chromas).
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return 1
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fi
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fi
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}
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# Add region_highlight entry (via `reply' array).
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#
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# This is a common place of adding such entry, but any above
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# code can do it itself (and it does) and skip setting __style
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# to 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 (no return 1 occured), do obligatory things ourselves.
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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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