ylib/zsh-syntax-highlighting
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This commit is contained in:
Daniel Shahaf 2016-08-16 13:40:31 +00:00
parent 757d047f09
commit 2c002f9f89
1 changed files with 21 additions and 4 deletions
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25
highlighters/main/main-highlighter.zsh
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@ -258,6 +258,7 @@ _zsh_highlight_main_highlighter()
local proc_buf="$buf" local proc_buf="$buf"
for arg in ${interactive_comments-${(z)buf}} \ for arg in ${interactive_comments-${(z)buf}} \
${interactive_comments+${(zZ+c+)buf}}; do ${interactive_comments+${(zZ+c+)buf}}; do
# Initialize $next_word.
if (( in_redirection )); then if (( in_redirection )); then
(( --in_redirection )) (( --in_redirection ))
fi fi
@ -267,6 +268,14 @@ _zsh_highlight_main_highlighter()
else else
# Stall $next_word. # Stall $next_word.
fi fi
# Initialize per-"simple command" [zshmisc(1)] variables:
#
# $already_added (see next paragraph)
# $style how to highlight $arg
# $in_array_assignment boolean flag for "between '(' and ')' of array assignment"
# $highlight_glob boolean flag for "'noglob' is in effect"
#
# $already_added is set to 1 to disable adding an entry to region_highlight # $already_added is set to 1 to disable adding an entry to region_highlight
# for this iteration. Currently, that is done for "" and $'' strings, # for this iteration. Currently, that is done for "" and $'' strings,
# which add the entry early so escape sequences within the string override # which add the entry early so escape sequences within the string override
@ -280,7 +289,7 @@ _zsh_highlight_main_highlighter()
fi fi
fi fi
# advance $start_pos, skipping over whitespace in $buf. # Compute the new $start_pos and $end_pos, skipping over whitespace in $buf.
if [[ $arg == ';' ]] ; then if [[ $arg == ';' ]] ; then
# We're looking for either a semicolon or a newline, whichever comes # We're looking for either a semicolon or a newline, whichever comes
# first. Both of these are rendered as a ";" (SEPER) by the ${(z)..} # first. Both of these are rendered as a ";" (SEPER) by the ${(z)..}
@ -300,8 +309,7 @@ _zsh_highlight_main_highlighter()
((end_pos=$start_pos+${#arg})) ((end_pos=$start_pos+${#arg}))
fi fi
# Above `if` computes new start_pos and end_pos. # Compute the new $proc_buf. We advance it
# Here we compute new proc_buf. We advance it
# (chop off characters from the beginning) # (chop off characters from the beginning)
# beyond what end_pos points to, by skipping # beyond what end_pos points to, by skipping
# as many characters as end_pos was advanced. # as many characters as end_pos was advanced.
@ -320,6 +328,9 @@ _zsh_highlight_main_highlighter()
# Why [,-1] is slower than [,length] isn't clear. # Why [,-1] is slower than [,length] isn't clear.
proc_buf="${proc_buf[offset + $#arg + 1,len]}" proc_buf="${proc_buf[offset + $#arg + 1,len]}"
# Handle the INTERACTIVE_COMMENTS option.
#
# We use the (Z+c+) flag so the entire comment is presented as one token in $arg.
if [[ -n ${interactive_comments+'set'} && $arg[1] == $histchars[3] ]]; then if [[ -n ${interactive_comments+'set'} && $arg[1] == $histchars[3] ]]; then
if [[ $this_word == *(':regular:'|':start:')* ]]; then if [[ $this_word == *(':regular:'|':start:')* ]]; then
style=comment style=comment
@ -331,16 +342,21 @@ _zsh_highlight_main_highlighter()
continue continue
fi fi
# Analyse the current word.
if _zsh_highlight_main__is_redirection $arg ; then if _zsh_highlight_main__is_redirection $arg ; then
# A '<' or '>', possibly followed by a digit # A '<' or '>', possibly followed by a digit
in_redirection=2 in_redirection=2
fi fi
# Parse the sudo command line # Special-case the first word after 'sudo'.
if (( ! in_redirection )); then if (( ! in_redirection )); then
if [[ $this_word == *':sudo_opt:'* ]] && [[ $arg != -* ]]; then if [[ $this_word == *':sudo_opt:'* ]] && [[ $arg != -* ]]; then
this_word=${this_word//:sudo_opt:/} this_word=${this_word//:sudo_opt:/}
fi fi
fi
# Parse the sudo command line
if (( ! in_redirection )); then
if [[ $this_word == *':sudo_opt:'* ]]; then if [[ $this_word == *':sudo_opt:'* ]]; then
case "$arg" in case "$arg" in
# Flag that requires an argument # Flag that requires an argument
@ -358,6 +374,7 @@ _zsh_highlight_main_highlighter()
fi fi
fi fi
# The Great Fork: is this a command word? Is this a non-command word?
if [[ $this_word == *':start:'* ]] && (( in_redirection == 0 )); then # $arg is the command word if [[ $this_word == *':start:'* ]] && (( in_redirection == 0 )); then # $arg is the command word
if [[ -n ${(M)ZSH_HIGHLIGHT_TOKENS_PRECOMMANDS:#"$arg"} ]]; then if [[ -n ${(M)ZSH_HIGHLIGHT_TOKENS_PRECOMMANDS:#"$arg"} ]]; then
style=precommand style=precommand