diff options
Diffstat (limited to '.config/shell/zsh-fast-syntax-highlighting/:chroma/-ruby.ch')
| -rw-r--r-- | .config/shell/zsh-fast-syntax-highlighting/:chroma/-ruby.ch | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/.config/shell/zsh-fast-syntax-highlighting/:chroma/-ruby.ch b/.config/shell/zsh-fast-syntax-highlighting/:chroma/-ruby.ch new file mode 100644 index 0000000..3495cc8 --- /dev/null +++ b/.config/shell/zsh-fast-syntax-highlighting/:chroma/-ruby.ch @@ -0,0 +1,81 @@ +# -*- mode: sh; sh-indentation: 4; indent-tabs-mode: nil; sh-basic-offset: 4; -*- +# Copyright (c) 2018 Sebastian Gniazdowski +# +# Chroma function for command `ruby'. It highlights code passed to ruby +# with -e option - does syntax check by calling `ruby -ce', then highlights +# as correct or incorrect code. +# +# $1 - 0 or 1, denoting if it's first call to the chroma, or following one +# $2 - the current token, also accessible by $__arg from the above scope - +# basically a private copy of $__arg +# $3 - a private copy of $_start_pos, i.e. the position of the token in the +# command line buffer, used to add region_highlight entry (see man), +# because Zsh colorizes by *ranges* in command line buffer +# $4 - a private copy of $_end_pos from the above scope +# + +(( next_word = 2 | 8192 )) + +local __first_call="$1" __wrd="$2" __start_pos="$3" __end_pos="$4" +local __style +integer __idx1 __idx2 + +(( __first_call )) && { + # Called for the first time - new command. + # FAST_HIGHLIGHT is used because it survives between calls, and + # allows to use a single global hash only, instead of multiple + # global variables. + FAST_HIGHLIGHT[chrome-ruby-got-eswitch]=0 + return 1 +} || { + # Following call, i.e. not the first one. + + # Check if chroma should end – test if token is of type + # "starts new command", if so pass-through – chroma ends + [[ "$__arg_type" = 3 ]] && return 2 + + if (( in_redirection > 0 || this_word & 128 )) || [[ $__wrd == "<<<" ]]; then + return 1 + fi + + if [[ "$__wrd" = -* && ${FAST_HIGHLIGHT[chroma-ruby-got-subcommand]} -eq 0 ]]; then + __style=${FAST_THEME_NAME}${${${__wrd:#--*}:+single-hyphen-option}:-double-hyphen-option} + + if [[ "$__wrd" = "-e" || ("$__wrd" = -*e* && "$__wrd" != --*) ]]; then + FAST_HIGHLIGHT[chrome-ruby-got-eswitch]=1 + fi + else + __wrd="${__wrd//\`/x}" + __arg="${__arg//\`/x}" + __wrd="${(Q)__wrd}" + if (( FAST_HIGHLIGHT[chrome-ruby-got-eswitch] == 1 )); then + FAST_HIGHLIGHT[chrome-ruby-got-eswitch]=0 + if ruby -ce "$__wrd" >/dev/null 2>&1; then + # Add correct-subtle style + (( __start=__start_pos-${#PREBUFFER}, __end=__end_pos-${#PREBUFFER}, __start >= 0 )) && reply+=("$__start $__end ${FAST_HIGHLIGHT_STYLES[${FAST_THEME_NAME}correct-subtle]}") + else + # Add incorrect-subtle style + (( __start=__start_pos-${#PREBUFFER}, __end=__end_pos-${#PREBUFFER}, __start >= 0 )) && reply+=("$__start $__end ${FAST_HIGHLIGHT_STYLES[${FAST_THEME_NAME}incorrect-subtle]}") + fi + else + # Pass-through to the big-loop outside + return 1 + fi + FAST_HIGHLIGHT[chrome-ruby-got-eswitch]=0 + fi +} + +# Add region_highlight entry (via `reply' array) +# +# This is a common place of adding such entry, but any above +# code can do it itself (and it does) and skip setting __style +# to disable this code. +[[ -n "$__style" ]] && (( __start=__start_pos-${#PREBUFFER}, __end=__end_pos-${#PREBUFFER}, __start >= 0 )) && reply+=("$__start $__end ${FAST_HIGHLIGHT_STYLES[$__style]}") + +# We aren't passing-through, do obligatory things ourselves +(( this_word = next_word )) +_start_pos=$_end_pos + +return 0 + +# vim:ft=zsh:et:sw=4 |