726 lines
29 KiB
Bash
726 lines
29 KiB
Bash
# -------------------------------------------------------------------------------------------------
|
|
# Copyright (c) 2010-2016 zsh-syntax-highlighting contributors
|
|
# All rights reserved.
|
|
#
|
|
# Redistribution and use in source and binary forms, with or without modification, are permitted
|
|
# provided that the following conditions are met:
|
|
#
|
|
# * Redistributions of source code must retain the above copyright notice, this list of conditions
|
|
# and the following disclaimer.
|
|
# * Redistributions in binary form must reproduce the above copyright notice, this list of
|
|
# conditions and the following disclaimer in the documentation and/or other materials provided
|
|
# with the distribution.
|
|
# * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
|
|
# may be used to endorse or promote products derived from this software without specific prior
|
|
# written permission.
|
|
#
|
|
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
|
|
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
|
|
# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
|
# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
|
|
# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
|
|
# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
# -------------------------------------------------------------------------------------------------
|
|
# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
|
|
# vim: ft=zsh sw=2 ts=2 et
|
|
# -------------------------------------------------------------------------------------------------
|
|
|
|
|
|
# Define default styles.
|
|
: ${ZSH_HIGHLIGHT_STYLES[default]:=none}
|
|
: ${ZSH_HIGHLIGHT_STYLES[unknown-token]:=fg=red,bold}
|
|
: ${ZSH_HIGHLIGHT_STYLES[reserved-word]:=fg=yellow}
|
|
: ${ZSH_HIGHLIGHT_STYLES[alias]:=fg=green}
|
|
: ${ZSH_HIGHLIGHT_STYLES[suffix-alias]:=fg=green,underline}
|
|
: ${ZSH_HIGHLIGHT_STYLES[builtin]:=fg=green}
|
|
: ${ZSH_HIGHLIGHT_STYLES[function]:=fg=green}
|
|
: ${ZSH_HIGHLIGHT_STYLES[command]:=fg=green}
|
|
: ${ZSH_HIGHLIGHT_STYLES[precommand]:=fg=green,underline}
|
|
: ${ZSH_HIGHLIGHT_STYLES[commandseparator]:=none}
|
|
: ${ZSH_HIGHLIGHT_STYLES[hashed-command]:=fg=green}
|
|
: ${ZSH_HIGHLIGHT_STYLES[path]:=underline}
|
|
: ${ZSH_HIGHLIGHT_STYLES[path_pathseparator]:=}
|
|
: ${ZSH_HIGHLIGHT_STYLES[path_prefix]:=underline}
|
|
: ${ZSH_HIGHLIGHT_STYLES[path_prefix_pathseparator]:=}
|
|
: ${ZSH_HIGHLIGHT_STYLES[globbing]:=fg=blue}
|
|
: ${ZSH_HIGHLIGHT_STYLES[history-expansion]:=fg=blue}
|
|
: ${ZSH_HIGHLIGHT_STYLES[single-hyphen-option]:=none}
|
|
: ${ZSH_HIGHLIGHT_STYLES[double-hyphen-option]:=none}
|
|
: ${ZSH_HIGHLIGHT_STYLES[back-quoted-argument]:=none}
|
|
: ${ZSH_HIGHLIGHT_STYLES[single-quoted-argument]:=fg=yellow}
|
|
: ${ZSH_HIGHLIGHT_STYLES[double-quoted-argument]:=fg=yellow}
|
|
: ${ZSH_HIGHLIGHT_STYLES[dollar-quoted-argument]:=fg=yellow}
|
|
: ${ZSH_HIGHLIGHT_STYLES[dollar-double-quoted-argument]:=fg=cyan}
|
|
: ${ZSH_HIGHLIGHT_STYLES[back-double-quoted-argument]:=fg=cyan}
|
|
: ${ZSH_HIGHLIGHT_STYLES[back-dollar-quoted-argument]:=fg=cyan}
|
|
: ${ZSH_HIGHLIGHT_STYLES[assign]:=none}
|
|
: ${ZSH_HIGHLIGHT_STYLES[redirection]:=none}
|
|
: ${ZSH_HIGHLIGHT_STYLES[comment]:=fg=black,bold}
|
|
|
|
# Whether the highlighter should be called or not.
|
|
_zsh_highlight_main_highlighter_predicate()
|
|
{
|
|
# may need to remove path_prefix highlighting when the line ends
|
|
[[ $WIDGET == zle-line-finish ]] || _zsh_highlight_buffer_modified
|
|
}
|
|
|
|
# Helper to deal with tokens crossing line boundaries.
|
|
_zsh_highlight_main_add_region_highlight() {
|
|
integer start=$1 end=$2
|
|
shift 2
|
|
|
|
# The calculation was relative to $PREBUFFER$BUFFER, but region_highlight is
|
|
# relative to $BUFFER.
|
|
(( start -= $#PREBUFFER ))
|
|
(( end -= $#PREBUFFER ))
|
|
|
|
(( end < 0 )) && return # having end<0 would be a bug
|
|
(( start < 0 )) && start=0 # having start<0 is normal with e.g. multiline strings
|
|
_zsh_highlight_add_highlight $start $end "$@"
|
|
}
|
|
|
|
# Get the type of a command.
|
|
#
|
|
# Uses the zsh/parameter module if available to avoid forks, and a
|
|
# wrapper around 'type -w' as fallback.
|
|
#
|
|
# Takes a single argument.
|
|
#
|
|
# The result will be stored in REPLY.
|
|
_zsh_highlight_main__type() {
|
|
if (( $+_zsh_highlight_main__command_type_cache )); then
|
|
REPLY=$_zsh_highlight_main__command_type_cache[(e)$1]
|
|
if [[ -n "$REPLY" ]]; then
|
|
return
|
|
fi
|
|
fi
|
|
if (( $#options_to_set )); then
|
|
setopt localoptions $options_to_set;
|
|
fi
|
|
unset REPLY
|
|
if zmodload -e zsh/parameter; then
|
|
if (( $+aliases[(e)$1] )); then
|
|
REPLY=alias
|
|
elif (( $+saliases[(e)${1##*.}] )); then
|
|
REPLY='suffix alias'
|
|
elif (( $reswords[(Ie)$1] )); then
|
|
REPLY=reserved
|
|
elif (( $+functions[(e)$1] )); then
|
|
REPLY=function
|
|
elif (( $+builtins[(e)$1] )); then
|
|
REPLY=builtin
|
|
elif (( $+commands[(e)$1] )); then
|
|
REPLY=command
|
|
elif ! builtin type -w -- $1 >/dev/null 2>&1; then
|
|
REPLY=none
|
|
fi
|
|
fi
|
|
if ! (( $+REPLY )); then
|
|
REPLY="${$(LC_ALL=C builtin type -w -- $1 2>/dev/null)#*: }"
|
|
fi
|
|
if (( $+_zsh_highlight_main__command_type_cache )); then
|
|
_zsh_highlight_main__command_type_cache[(e)$1]=$REPLY
|
|
fi
|
|
}
|
|
|
|
# Check whether the first argument is a redirection operator token.
|
|
# Report result via the exit code.
|
|
_zsh_highlight_main__is_redirection() {
|
|
# A redirection operator token:
|
|
# - starts with an optional single-digit number;
|
|
# - then, has a '<' or '>' character;
|
|
# - is not a process substitution [<(...) or >(...)].
|
|
[[ $1 == (<0-9>|)(\<|\>)* ]] && [[ $1 != (\<|\>)$'\x28'* ]]
|
|
}
|
|
|
|
# Resolve alias.
|
|
#
|
|
# Takes a single argument.
|
|
#
|
|
# The result will be stored in REPLY.
|
|
_zsh_highlight_main__resolve_alias() {
|
|
if zmodload -e zsh/parameter; then
|
|
REPLY=${aliases[$arg]}
|
|
else
|
|
REPLY="${"$(alias -- $arg)"#*=}"
|
|
fi
|
|
}
|
|
|
|
# Main syntax highlighting function.
|
|
_zsh_highlight_main_highlighter()
|
|
{
|
|
## Before we even 'emulate -L', we must test a few options that would reset.
|
|
if [[ -o interactive_comments ]]; then
|
|
local interactive_comments= # set to empty
|
|
fi
|
|
if [[ -o path_dirs ]]; then
|
|
integer path_dirs_was_set=1
|
|
else
|
|
integer path_dirs_was_set=0
|
|
fi
|
|
emulate -L zsh
|
|
setopt localoptions extendedglob bareglobqual
|
|
|
|
# At the PS3 prompt and in vared, highlight nothing.
|
|
#
|
|
# (We can't check this in _zsh_highlight_main_highlighter_predicate because
|
|
# if the predicate returns false, the previous value of region_highlight
|
|
# would be reused.)
|
|
if [[ $CONTEXT == (select|vared) ]]; then
|
|
return
|
|
fi
|
|
|
|
## Variable declarations and initializations
|
|
local start_pos=0 end_pos highlight_glob=true arg style
|
|
local in_array_assignment=false # true between 'a=(' and the matching ')'
|
|
typeset -a ZSH_HIGHLIGHT_TOKENS_COMMANDSEPARATOR
|
|
typeset -a ZSH_HIGHLIGHT_TOKENS_PRECOMMANDS
|
|
typeset -a ZSH_HIGHLIGHT_TOKENS_CONTROL_FLOW
|
|
local -a options_to_set # used in callees
|
|
local buf="$PREBUFFER$BUFFER"
|
|
integer len="${#buf}"
|
|
|
|
if (( path_dirs_was_set )); then
|
|
options_to_set+=( PATH_DIRS )
|
|
fi
|
|
unset path_dirs_was_set
|
|
|
|
ZSH_HIGHLIGHT_TOKENS_COMMANDSEPARATOR=(
|
|
'|' '||' ';' '&' '&&'
|
|
'|&'
|
|
'&!' '&|'
|
|
# ### 'case' syntax, but followed by a pattern, not by a command
|
|
# ';;' ';&' ';|'
|
|
)
|
|
ZSH_HIGHLIGHT_TOKENS_PRECOMMANDS=(
|
|
'builtin' 'command' 'exec' 'nocorrect' 'noglob'
|
|
'pkexec' # immune to #121 because it's usually not passed --option flags
|
|
)
|
|
|
|
# Tokens that, at (naively-determined) "command position", are followed by
|
|
# a de jure command position. All of these are reserved words.
|
|
ZSH_HIGHLIGHT_TOKENS_CONTROL_FLOW=(
|
|
$'\x7b' # block
|
|
$'\x28' # subshell
|
|
'()' # anonymous function
|
|
'while'
|
|
'until'
|
|
'if'
|
|
'then'
|
|
'elif'
|
|
'else'
|
|
'do'
|
|
'time'
|
|
'coproc'
|
|
'!' # reserved word; unrelated to $histchars[1]
|
|
)
|
|
|
|
# State machine
|
|
#
|
|
# The states are:
|
|
# - :start: Command word
|
|
# - :sudo_opt: A leading-dash option to sudo (such as "-u" or "-i")
|
|
# - :sudo_arg: The argument to a sudo leading-dash option that takes one,
|
|
# when given as a separate word; i.e., "foo" in "-u foo" (two
|
|
# words) but not in "-ufoo" (one word).
|
|
# - :regular: "Not a command word", and command delimiters are permitted.
|
|
# Mainly used to detect premature termination of commands.
|
|
#
|
|
# When the kind of a word is not yet known, $this_word / $next_word may contain
|
|
# multiple states. For example, after "sudo -i", the next word may be either
|
|
# another --flag or a command name, hence the state would include both :start:
|
|
# and :sudo_opt:.
|
|
#
|
|
# The tokens are always added with both leading and trailing colons to serve as
|
|
# word delimiters (an improvised array); [[ $x == *:foo:* ]] and x=${x//:foo:/}
|
|
# will DTRT regardless of how many elements or repetitions $x has..
|
|
#
|
|
# Handling of redirections: upon seeing a redirection token, we must stall
|
|
# the current state --- that is, the value of $this_word --- for two iterations
|
|
# (one for the redirection operator, one for the word following it representing
|
|
# the redirection target). Therefore, we set $in_redirection to 2 upon seeing a
|
|
# redirection operator, decrement it each iteration, and stall the current state
|
|
# when it is non-zero. Thus, upon reaching the next word (the one that follows
|
|
# the redirection operator and target), $this_word will still contain values
|
|
# appropriate for the word immediately following the word that preceded the
|
|
# redirection operator.
|
|
#
|
|
# The "the previous word was a redirection operator" state is not communicated
|
|
# to the next iteration via $next_word/$this_word as usual, but via
|
|
# $in_redirection. The value of $next_word from the iteration that processed
|
|
# the operator is discarded.
|
|
#
|
|
local this_word=':start:' next_word
|
|
integer in_redirection
|
|
# Processing buffer
|
|
local proc_buf="$buf"
|
|
for arg in ${interactive_comments-${(z)buf}} \
|
|
${interactive_comments+${(zZ+c+)buf}}; do
|
|
if (( in_redirection )); then
|
|
(( --in_redirection ))
|
|
fi
|
|
if (( in_redirection == 0 )); then
|
|
# Initialize $next_word to its default value.
|
|
next_word=':regular:'
|
|
else
|
|
# Stall $next_word.
|
|
fi
|
|
# $already_added is set to 1 to disable adding an entry to region_highlight
|
|
# for this iteration. Currently, that is done for "" and $'' strings,
|
|
# which add the entry early so escape sequences within the string override
|
|
# the string's color.
|
|
integer already_added=0
|
|
style=unknown-token
|
|
if [[ $this_word == *':start:'* ]]; then
|
|
in_array_assignment=false
|
|
if [[ $arg == 'noglob' ]]; then
|
|
highlight_glob=false
|
|
fi
|
|
fi
|
|
|
|
# advance $start_pos, skipping over whitespace in $buf.
|
|
if [[ $arg == ';' ]] ; then
|
|
# We're looking for either a semicolon or a newline, whichever comes
|
|
# first. Both of these are rendered as a ";" (SEPER) by the ${(z)..}
|
|
# flag.
|
|
#
|
|
# We can't use the (Z+n+) flag because that elides the end-of-command
|
|
# token altogether, so 'echo foo\necho bar' (two commands) becomes
|
|
# indistinguishable from 'echo foo echo bar' (one command with three
|
|
# words for arguments).
|
|
local needle=$'[;\n]'
|
|
integer offset=$(( ${proc_buf[(i)$needle]} - 1 ))
|
|
(( start_pos += offset ))
|
|
(( end_pos = start_pos + $#arg ))
|
|
else
|
|
integer offset=$(((len-start_pos)-${#${proc_buf##([[:space:]]|\\[[:space:]])#}}))
|
|
((start_pos+=offset))
|
|
((end_pos=$start_pos+${#arg}))
|
|
fi
|
|
|
|
# Above `if` computes new start_pos and end_pos.
|
|
# Here we compute new proc_buf. We advance it
|
|
# (chop off characters from the beginning)
|
|
# beyond what end_pos points to, by skipping
|
|
# as many characters as end_pos was advanced.
|
|
#
|
|
# end_pos was advanced by $offset (via start_pos)
|
|
# and by $#arg. Note the `start_pos=$end_pos`
|
|
# below.
|
|
#
|
|
# As for the [,len]. We could use [,len-start_pos+offset]
|
|
# here, but to make it easier on eyes, we use len and
|
|
# rely on the fact that Zsh simply handles that. The
|
|
# length of proc_buf is len-start_pos+offset because
|
|
# we're chopping it to match current start_pos, so its
|
|
# length matches the previous value of start_pos.
|
|
#
|
|
# Why [,-1] is slower than [,length] isn't clear.
|
|
proc_buf="${proc_buf[offset + $#arg + 1,len]}"
|
|
|
|
if [[ -n ${interactive_comments+'set'} && $arg[1] == $histchars[3] ]]; then
|
|
if [[ $this_word == *(':regular:'|':start:')* ]]; then
|
|
style=comment
|
|
else
|
|
style=unknown-token # prematurely terminated
|
|
fi
|
|
_zsh_highlight_main_add_region_highlight $start_pos $end_pos $style
|
|
already_added=1
|
|
continue
|
|
fi
|
|
|
|
# Parse the sudo command line
|
|
if (( ! in_redirection )); then
|
|
if [[ $this_word == *':sudo_opt:'* ]]; then
|
|
case "$arg" in
|
|
# Flag that requires an argument
|
|
'-'[Cgprtu]) this_word=${this_word//:start:/};
|
|
next_word=':sudo_arg:';;
|
|
# This prevents misbehavior with sudo -u -otherargument
|
|
'-'*) this_word=${this_word//:start:/};
|
|
next_word+=':start:';
|
|
next_word+=':sudo_opt:';;
|
|
*) ;;
|
|
esac
|
|
elif [[ $this_word == *':sudo_arg:'* ]]; then
|
|
next_word+=':sudo_opt:'
|
|
next_word+=':start:'
|
|
fi
|
|
fi
|
|
|
|
if [[ $this_word == *':start:'* ]] && (( in_redirection == 0 )); then # $arg is the command word
|
|
if [[ -n ${(M)ZSH_HIGHLIGHT_TOKENS_PRECOMMANDS:#"$arg"} ]]; then
|
|
style=precommand
|
|
elif [[ "$arg" = "sudo" ]]; then
|
|
style=precommand
|
|
next_word=${next_word//:regular:/}
|
|
next_word+=':sudo_opt:'
|
|
next_word+=':start:'
|
|
else
|
|
_zsh_highlight_main_highlighter_expand_path $arg
|
|
local expanded_arg="$REPLY"
|
|
_zsh_highlight_main__type ${expanded_arg}
|
|
local res="$REPLY"
|
|
() {
|
|
# Special-case: command word is '$foo', like that, without braces or anything.
|
|
#
|
|
# That's not entirely correct --- if the parameter's value happens to be a reserved
|
|
# word, the parameter expansion will be highlighted as a reserved word --- but that
|
|
# incorrectness is outweighed by the usability improvement of permitting the use of
|
|
# parameters that refer to commands, functions, and builtins.
|
|
local -a match mbegin mend
|
|
local MATCH; integer MBEGIN MEND
|
|
if [[ $res == none ]] && (( ${+parameters} )) &&
|
|
[[ ${arg[1]} == \$ ]] && [[ ${arg:1} =~ ^([A-Za-z_][A-Za-z0-9_]*|[0-9]+)$ ]] &&
|
|
(( ${+parameters[${MATCH}]} ))
|
|
then
|
|
_zsh_highlight_main__type ${(P)MATCH}
|
|
res=$REPLY
|
|
fi
|
|
}
|
|
case $res in
|
|
reserved) style=reserved-word;;
|
|
'suffix alias') style=suffix-alias;;
|
|
alias) () {
|
|
integer insane_alias
|
|
case $arg in
|
|
# Issue #263: aliases with '=' on their LHS.
|
|
#
|
|
# There are three cases:
|
|
#
|
|
# - Unsupported, breaks 'alias -L' output, but invokable:
|
|
('='*) :;;
|
|
# - Unsupported, not invokable:
|
|
(*'='*) insane_alias=1;;
|
|
# - The common case:
|
|
(*) :;;
|
|
esac
|
|
if (( insane_alias )); then
|
|
style=unknown-token
|
|
else
|
|
style=alias
|
|
_zsh_highlight_main__resolve_alias $arg
|
|
local alias_target="$REPLY"
|
|
[[ -n ${(M)ZSH_HIGHLIGHT_TOKENS_PRECOMMANDS:#"$alias_target"} && -z ${(M)ZSH_HIGHLIGHT_TOKENS_PRECOMMANDS:#"$arg"} ]] && ZSH_HIGHLIGHT_TOKENS_PRECOMMANDS+=($arg)
|
|
fi
|
|
}
|
|
;;
|
|
builtin) style=builtin;;
|
|
function) style=function;;
|
|
command) style=command;;
|
|
hashed) style=hashed-command;;
|
|
none) if _zsh_highlight_main_highlighter_check_assign; then
|
|
style=assign
|
|
if [[ $arg[-1] == '(' ]]; then
|
|
in_array_assignment=true
|
|
else
|
|
# assignment to a scalar parameter.
|
|
# (For array assignments, the command doesn't start until the ")" token.)
|
|
next_word+=':start:'
|
|
fi
|
|
elif [[ $arg[0,1] = $histchars[0,1] ]] && (( $#arg[0,2] == 2 )); then
|
|
style=history-expansion
|
|
elif [[ $arg[0,1] == $histchars[2,2] ]]; then
|
|
style=history-expansion
|
|
elif [[ -n ${(M)ZSH_HIGHLIGHT_TOKENS_COMMANDSEPARATOR:#"$arg"} ]]; then
|
|
if [[ $this_word == *':regular:'* ]]; then
|
|
# This highlights empty commands (semicolon follows nothing) as an error.
|
|
# Zsh accepts them, though.
|
|
style=commandseparator
|
|
else
|
|
style=unknown-token
|
|
fi
|
|
elif _zsh_highlight_main__is_redirection $arg; then
|
|
# A '<' or '>', possibly followed by a digit
|
|
style=redirection
|
|
(( in_redirection=2 ))
|
|
elif [[ $arg[1,2] == '((' ]]; then
|
|
# Arithmetic evaluation.
|
|
#
|
|
# Note: prior to zsh-5.1.1-52-g4bed2cf (workers/36669), the ${(z)...}
|
|
# splitter would only output the '((' token if the matching '))' had
|
|
# been typed. Therefore, under those versions of zsh, BUFFER="(( 42"
|
|
# would be highlighted as an error until the matching "))" are typed.
|
|
#
|
|
# We highlight just the opening parentheses, as a reserved word; this
|
|
# is how [[ ... ]] is highlighted, too.
|
|
style=reserved-word
|
|
_zsh_highlight_main_add_region_highlight $start_pos $((start_pos + 2)) $style
|
|
already_added=1
|
|
if [[ $arg[-2,-1] == '))' ]]; then
|
|
_zsh_highlight_main_add_region_highlight $((end_pos - 2)) $end_pos $style
|
|
already_added=1
|
|
fi
|
|
elif [[ $arg == '()' || $arg == $'\x28' ]]; then
|
|
# anonymous function
|
|
# subshell
|
|
style=reserved-word
|
|
else
|
|
if _zsh_highlight_main_highlighter_check_path; then
|
|
style=$REPLY
|
|
else
|
|
style=unknown-token
|
|
fi
|
|
fi
|
|
;;
|
|
*) _zsh_highlight_main_add_region_highlight $start_pos $end_pos commandtypefromthefuture-$res
|
|
already_added=1
|
|
;;
|
|
esac
|
|
fi
|
|
fi
|
|
if (( ! already_added )) && [[ $style == unknown-token ]] && # not handled by the 'command word' codepath
|
|
{ (( in_redirection )) || [[ $this_word == *':regular:'* ]] || [[ $this_word == *':sudo_opt:'* ]] || [[ $this_word == *':sudo_arg:'* ]] }
|
|
then # $arg is a non-command word
|
|
case $arg in
|
|
$'\x29') # subshell or end of array assignment
|
|
if $in_array_assignment; then
|
|
style=assign
|
|
in_array_assignment=false
|
|
next_word+=':start:'
|
|
else
|
|
style=reserved-word
|
|
fi;;
|
|
$'\x7d') style=reserved-word;; # block
|
|
'--'*) style=double-hyphen-option;;
|
|
'-'*) style=single-hyphen-option;;
|
|
"'"*) style=single-quoted-argument;;
|
|
'"'*) style=double-quoted-argument
|
|
_zsh_highlight_main_add_region_highlight $start_pos $end_pos $style
|
|
_zsh_highlight_main_highlighter_highlight_string
|
|
already_added=1
|
|
;;
|
|
\$\'*) style=dollar-quoted-argument
|
|
_zsh_highlight_main_add_region_highlight $start_pos $end_pos $style
|
|
_zsh_highlight_main_highlighter_highlight_dollar_string
|
|
already_added=1
|
|
;;
|
|
'`'*) style=back-quoted-argument;;
|
|
[*?]*|*[^\\][*?]*)
|
|
$highlight_glob && style=globbing || style=default;;
|
|
*) if false; then
|
|
elif [[ $arg[0,1] = $histchars[0,1] ]] && (( $#arg[0,2] == 2 )); then
|
|
style=history-expansion
|
|
elif [[ -n ${(M)ZSH_HIGHLIGHT_TOKENS_COMMANDSEPARATOR:#"$arg"} ]]; then
|
|
if [[ $this_word == *':regular:'* ]]; then
|
|
style=commandseparator
|
|
else
|
|
style=unknown-token
|
|
fi
|
|
elif _zsh_highlight_main__is_redirection $arg; then
|
|
style=redirection
|
|
(( in_redirection=2 ))
|
|
else
|
|
if _zsh_highlight_main_highlighter_check_path; then
|
|
style=$REPLY
|
|
else
|
|
style=default
|
|
fi
|
|
fi
|
|
;;
|
|
esac
|
|
fi
|
|
if ! (( already_added )); then
|
|
_zsh_highlight_main_add_region_highlight $start_pos $end_pos $style
|
|
[[ $style == path || $style == path_prefix ]] && _zsh_highlight_main_highlighter_highlight_path_separators
|
|
fi
|
|
if [[ -n ${(M)ZSH_HIGHLIGHT_TOKENS_COMMANDSEPARATOR:#"$arg"} ]]; then
|
|
next_word=':start:'
|
|
highlight_glob=true
|
|
elif
|
|
[[ -n ${(M)ZSH_HIGHLIGHT_TOKENS_CONTROL_FLOW:#"$arg"} && $this_word == *':start:'* ]] ||
|
|
[[ -n ${(M)ZSH_HIGHLIGHT_TOKENS_PRECOMMANDS:#"$arg"} && $this_word == *':start:'* ]]; then
|
|
next_word=':start:'
|
|
elif [[ $arg == "repeat" && $this_word == *':start:'* ]]; then
|
|
# skip the repeat-count word
|
|
in_redirection=2
|
|
# The redirection mechanism assumes $this_word describes the word
|
|
# following the redirection. Make it so.
|
|
#
|
|
# That word can be a command word with shortloops (`repeat 2 ls`)
|
|
# or a command separator (`repeat 2; ls` or `repeat 2; do ls; done`).
|
|
#
|
|
# The repeat-count word will be handled like a redirection target.
|
|
this_word=':start::regular:'
|
|
fi
|
|
start_pos=$end_pos
|
|
if (( in_redirection == 0 )); then
|
|
# This is the default/common codepath.
|
|
this_word=$next_word
|
|
else
|
|
# Stall $this_word.
|
|
fi
|
|
done
|
|
}
|
|
|
|
# Check if $arg is variable assignment
|
|
_zsh_highlight_main_highlighter_check_assign()
|
|
{
|
|
setopt localoptions extended_glob
|
|
[[ $arg == [[:alpha:]_][[:alnum:]_]#(|\[*\])(|[+])=* ]] ||
|
|
[[ $arg == [0-9]##(|[+])=* ]]
|
|
}
|
|
|
|
_zsh_highlight_main_highlighter_highlight_path_separators()
|
|
{
|
|
local pos style_pathsep
|
|
style_pathsep=${style}_pathseparator
|
|
[[ -z "$ZSH_HIGHLIGHT_STYLES[$style_pathsep]" || "$ZSH_HIGHLIGHT_STYLES[$style]" == "$ZSH_HIGHLIGHT_STYLES[$style_pathsep]" ]] && return 0
|
|
for (( pos = start_pos; $pos <= end_pos; pos++ )) ; do
|
|
if [[ $BUFFER[pos] == / ]]; then
|
|
_zsh_highlight_main_add_region_highlight $((pos - 1)) $pos $style_pathsep
|
|
fi
|
|
done
|
|
}
|
|
|
|
# Check if $arg is a path.
|
|
# If yes, return 0 and in $REPLY the style to use.
|
|
# Else, return non-zero (and the contents of $REPLY is undefined).
|
|
_zsh_highlight_main_highlighter_check_path()
|
|
{
|
|
_zsh_highlight_main_highlighter_expand_path $arg;
|
|
local expanded_path="$REPLY"
|
|
|
|
REPLY=path
|
|
|
|
[[ -z $expanded_path ]] && return 1
|
|
[[ -L $expanded_path ]] && return 0
|
|
[[ -e $expanded_path ]] && return 0
|
|
|
|
# Search the path in CDPATH
|
|
local cdpath_dir
|
|
for cdpath_dir in $cdpath ; do
|
|
[[ -e "$cdpath_dir/$expanded_path" ]] && return 0
|
|
done
|
|
|
|
# If dirname($arg) doesn't exist, neither does $arg.
|
|
[[ ! -d ${expanded_path:h} ]] && return 1
|
|
|
|
# If this word ends the buffer, check if it's the prefix of a valid path.
|
|
if [[ ${BUFFER[1]} != "-" && ${#BUFFER} == $end_pos ]] &&
|
|
[[ $WIDGET != zle-line-finish ]]; then
|
|
local -a tmp
|
|
tmp=( ${expanded_path}*(N) )
|
|
(( $#tmp > 0 )) && REPLY=path_prefix && return 0
|
|
fi
|
|
|
|
# It's not a path.
|
|
return 1
|
|
}
|
|
|
|
# Highlight special chars inside double-quoted strings
|
|
_zsh_highlight_main_highlighter_highlight_string()
|
|
{
|
|
setopt localoptions noksharrays
|
|
local -a match mbegin mend
|
|
local MATCH; integer MBEGIN MEND
|
|
local i j k style
|
|
# Starting quote is at 1, so start parsing at offset 2 in the string.
|
|
for (( i = 2 ; i < end_pos - start_pos ; i += 1 )) ; do
|
|
(( j = i + start_pos - 1 ))
|
|
(( k = j + 1 ))
|
|
case "$arg[$i]" in
|
|
'$' ) style=dollar-double-quoted-argument
|
|
# Look for an alphanumeric parameter name.
|
|
if [[ ${arg:$i} =~ ^([A-Za-z_][A-Za-z0-9_]*|[0-9]+) ]] ; then
|
|
(( k += $#MATCH )) # highlight the parameter name
|
|
(( i += $#MATCH )) # skip past it
|
|
elif [[ ${arg:$i} =~ ^[{]([A-Za-z_][A-Za-z0-9_]*|[0-9]+)[}] ]] ; then
|
|
(( k += $#MATCH )) # highlight the parameter name and braces
|
|
(( i += $#MATCH )) # skip past it
|
|
else
|
|
continue
|
|
fi
|
|
;;
|
|
"\\") style=back-double-quoted-argument
|
|
if [[ \\\`\"\$ == *$arg[$i+1]* ]]; then
|
|
(( k += 1 )) # Color following char too.
|
|
(( i += 1 )) # Skip parsing the escaped char.
|
|
else
|
|
continue
|
|
fi
|
|
;;
|
|
*) continue ;;
|
|
|
|
esac
|
|
_zsh_highlight_main_add_region_highlight $j $k $style
|
|
done
|
|
}
|
|
|
|
# Highlight special chars inside dollar-quoted strings
|
|
_zsh_highlight_main_highlighter_highlight_dollar_string()
|
|
{
|
|
setopt localoptions noksharrays
|
|
local -a match mbegin mend
|
|
local MATCH; integer MBEGIN MEND
|
|
local i j k style
|
|
local AA
|
|
integer c
|
|
# Starting dollar-quote is at 1:2, so start parsing at offset 3 in the string.
|
|
for (( i = 3 ; i < end_pos - start_pos ; i += 1 )) ; do
|
|
(( j = i + start_pos - 1 ))
|
|
(( k = j + 1 ))
|
|
case "$arg[$i]" in
|
|
"\\") style=back-dollar-quoted-argument
|
|
for (( c = i + 1 ; c <= end_pos - start_pos ; c += 1 )); do
|
|
[[ "$arg[$c]" != ([0-9xXuUa-fA-F]) ]] && break
|
|
done
|
|
AA=$arg[$i+1,$c-1]
|
|
# Matching for HEX and OCT values like \0xA6, \xA6 or \012
|
|
if [[ "$AA" =~ "^(x|X)[0-9a-fA-F]{1,2}"
|
|
|| "$AA" =~ "^[0-7]{1,3}"
|
|
|| "$AA" =~ "^u[0-9a-fA-F]{1,4}"
|
|
|| "$AA" =~ "^U[0-9a-fA-F]{1,8}"
|
|
]]; then
|
|
(( k += $#MATCH ))
|
|
(( i += $#MATCH ))
|
|
else
|
|
if (( $#arg > $i+1 )) && [[ $arg[$i+1] == [xXuU] ]]; then
|
|
# \x not followed by hex digits is probably an error
|
|
style=unknown-token
|
|
fi
|
|
(( k += 1 )) # Color following char too.
|
|
(( i += 1 )) # Skip parsing the escaped char.
|
|
fi
|
|
;;
|
|
*) continue ;;
|
|
|
|
esac
|
|
_zsh_highlight_main_add_region_highlight $j $k $style
|
|
done
|
|
}
|
|
|
|
# Called with a single positional argument.
|
|
# Perform filename expansion (tilde expansion) on the argument and set $REPLY to the expanded value.
|
|
#
|
|
# Does not perform filename generation (globbing).
|
|
_zsh_highlight_main_highlighter_expand_path()
|
|
{
|
|
(( $# == 1 )) || print -r -- >&2 "zsh-syntax-highlighting: BUG: _zsh_highlight_main_highlighter_expand_path: called without argument"
|
|
|
|
# The $~1 syntax normally performs filename generation, but not when it's on the right-hand side of ${x:=y}.
|
|
setopt localoptions nonomatch
|
|
unset REPLY
|
|
: ${REPLY:=${(Q)~1}}
|
|
}
|
|
|
|
# -------------------------------------------------------------------------------------------------
|
|
# Main highlighter initialization
|
|
# -------------------------------------------------------------------------------------------------
|
|
|
|
_zsh_highlight_main__precmd_hook() {
|
|
_zsh_highlight_main__command_type_cache=()
|
|
}
|
|
|
|
autoload -U add-zsh-hook
|
|
if add-zsh-hook precmd _zsh_highlight_main__precmd_hook 2>/dev/null; then
|
|
# Initialize command type cache
|
|
typeset -gA _zsh_highlight_main__command_type_cache
|
|
else
|
|
print -r -- >&2 'zsh-syntax-highlighting: Failed to load add-zsh-hook. Some speed optimizations will not be used.'
|
|
# Make sure the cache is unset
|
|
unset _zsh_highlight_main__command_type_cache
|
|
fi
|