1712 lines
		
	
	
		
			64 KiB
		
	
	
	
		
			Bash
		
	
	
	
			
		
		
	
	
			1712 lines
		
	
	
		
			64 KiB
		
	
	
	
		
			Bash
		
	
	
	
| # -------------------------------------------------------------------------------------------------
 | |
| # Copyright (c) 2010-2020 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[suffix-alias]:=fg=green,underline}
 | |
| : ${ZSH_HIGHLIGHT_STYLES[global-alias]:=fg=cyan}
 | |
| : ${ZSH_HIGHLIGHT_STYLES[precommand]:=fg=green,underline}
 | |
| : ${ZSH_HIGHLIGHT_STYLES[commandseparator]:=none}
 | |
| : ${ZSH_HIGHLIGHT_STYLES[autodirectory]:=fg=green,underline}
 | |
| : ${ZSH_HIGHLIGHT_STYLES[path]:=underline}
 | |
| : ${ZSH_HIGHLIGHT_STYLES[path_pathseparator]:=}
 | |
| : ${ZSH_HIGHLIGHT_STYLES[path_prefix_pathseparator]:=}
 | |
| : ${ZSH_HIGHLIGHT_STYLES[globbing]:=fg=blue}
 | |
| : ${ZSH_HIGHLIGHT_STYLES[history-expansion]:=fg=blue}
 | |
| : ${ZSH_HIGHLIGHT_STYLES[command-substitution]:=none}
 | |
| : ${ZSH_HIGHLIGHT_STYLES[command-substitution-delimiter]:=fg=magenta}
 | |
| : ${ZSH_HIGHLIGHT_STYLES[process-substitution]:=none}
 | |
| : ${ZSH_HIGHLIGHT_STYLES[process-substitution-delimiter]:=fg=magenta}
 | |
| : ${ZSH_HIGHLIGHT_STYLES[single-hyphen-option]:=none}
 | |
| : ${ZSH_HIGHLIGHT_STYLES[double-hyphen-option]:=none}
 | |
| : ${ZSH_HIGHLIGHT_STYLES[back-quoted-argument]:=none}
 | |
| : ${ZSH_HIGHLIGHT_STYLES[back-quoted-argument-delimiter]:=fg=magenta}
 | |
| : ${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[rc-quote]:=fg=cyan}
 | |
| : ${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]:=fg=yellow}
 | |
| : ${ZSH_HIGHLIGHT_STYLES[comment]:=fg=black,bold}
 | |
| : ${ZSH_HIGHLIGHT_STYLES[named-fd]:=none}
 | |
| : ${ZSH_HIGHLIGHT_STYLES[numeric-fd]:=none}
 | |
| : ${ZSH_HIGHLIGHT_STYLES[arg0]:=fg=green}
 | |
| 
 | |
| # Whether the highlighter should be called or not.
 | |
| _zsh_highlight_highlighter_main_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() {
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|   integer start=$1 end=$2
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|   shift 2
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| 
 | |
|   if (( in_alias )); then
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|     [[ $1 == unknown-token ]] && alias_style=unknown-token
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|     return
 | |
|   fi
 | |
|   if (( in_param )); then
 | |
|     if [[ $1 == unknown-token ]]; then
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|       param_style=unknown-token
 | |
|     fi
 | |
|     if [[ -n $param_style ]]; then
 | |
|       return
 | |
|     fi
 | |
|     param_style=$1
 | |
|     return
 | |
|   fi
 | |
| 
 | |
|   # The calculation was relative to $buf but region_highlight is relative to $BUFFER.
 | |
|   (( start += buf_offset ))
 | |
|   (( end += buf_offset ))
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| 
 | |
|   list_highlights+=($start $end $1)
 | |
| }
 | |
| 
 | |
| _zsh_highlight_main_add_many_region_highlights() {
 | |
|   for 1 2 3; do
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|     _zsh_highlight_main_add_region_highlight $1 $2 $3
 | |
|   done
 | |
| }
 | |
| 
 | |
| _zsh_highlight_main_calculate_fallback() {
 | |
|   local -A fallback_of; fallback_of=(
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|       alias arg0
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|       suffix-alias arg0
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|       global-alias dollar-double-quoted-argument
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|       builtin arg0
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|       function arg0
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|       command arg0
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|       precommand arg0
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|       hashed-command arg0
 | |
|       autodirectory arg0
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|       arg0_\* arg0
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| 
 | |
|       # TODO: Maybe these? —
 | |
|       #   named-fd file-descriptor
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|       #   numeric-fd file-descriptor
 | |
| 
 | |
|       path_prefix path
 | |
|       # The path separator fallback won't ever be used, due to the optimisation
 | |
|       # in _zsh_highlight_main_highlighter_highlight_path_separators().
 | |
|       path_pathseparator path
 | |
|       path_prefix_pathseparator path_prefix
 | |
| 
 | |
|       single-quoted-argument{-unclosed,}
 | |
|       double-quoted-argument{-unclosed,}
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|       dollar-quoted-argument{-unclosed,}
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|       back-quoted-argument{-unclosed,}
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| 
 | |
|       command-substitution{-quoted,,-unquoted,}
 | |
|       command-substitution-delimiter{-quoted,,-unquoted,}
 | |
| 
 | |
|       command-substitution{-delimiter,}
 | |
|       process-substitution{-delimiter,}
 | |
|       back-quoted-argument{-delimiter,}
 | |
|   )
 | |
|   local needle=$1 value
 | |
|   reply=($1)
 | |
|   while [[ -n ${value::=$fallback_of[(k)$needle]} ]]; do
 | |
|     unset "fallback_of[$needle]" # paranoia against infinite loops
 | |
|     reply+=($value)
 | |
|     needle=$value
 | |
|   done
 | |
| }
 | |
| 
 | |
| # Get the type of a command.
 | |
| #
 | |
| # Uses the zsh/parameter module if available to avoid forks, and a
 | |
| # wrapper around 'type -w' as fallback.
 | |
| #
 | |
| # If $2 is 0, do not consider aliases.
 | |
| #
 | |
| # The result will be stored in REPLY.
 | |
| _zsh_highlight_main__type() {
 | |
|   integer -r aliases_allowed=${2-1}
 | |
|   # We won't cache replies of anything that exists as an alias at all, to
 | |
|   # ensure the cached value is correct regardless of $aliases_allowed.
 | |
|   #
 | |
|   # ### We probably _should_ cache them in a cache that's keyed on the value of
 | |
|   # ### $aliases_allowed, on the assumption that aliases are the common case.
 | |
|   integer may_cache=1
 | |
| 
 | |
|   # Cache lookup
 | |
|   if (( $+_zsh_highlight_main__command_type_cache )); then
 | |
|     REPLY=$_zsh_highlight_main__command_type_cache[(e)$1]
 | |
|     if [[ -n "$REPLY" ]]; then
 | |
|       return
 | |
|     fi
 | |
|   fi
 | |
| 
 | |
|   # Main logic
 | |
|   if (( $#options_to_set )); then
 | |
|     setopt localoptions $options_to_set;
 | |
|   fi
 | |
|   unset REPLY
 | |
|   if zmodload -e zsh/parameter; then
 | |
|     if (( $+aliases[(e)$1] )); then
 | |
|       may_cache=0
 | |
|     fi
 | |
|     if (( ${+galiases[(e)$1]} )) && (( aliases_allowed )); then
 | |
|       REPLY='global alias'
 | |
|     elif (( $+aliases[(e)$1] )) && (( aliases_allowed )); then
 | |
|       REPLY=alias
 | |
|     elif [[ $1 == *.* && -n ${1%.*} ]] && (( $+saliases[(e)${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
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|       REPLY=command
 | |
|     # None of the special hashes had a match, so fall back to 'type -w', for
 | |
|     # forward compatibility with future versions of zsh that may add new command
 | |
|     # types.
 | |
|     #
 | |
|     # zsh 5.2 and older have a bug whereby running 'type -w ./sudo' implicitly
 | |
|     # runs 'hash ./sudo=/usr/local/bin/./sudo' (assuming /usr/local/bin/sudo
 | |
|     # exists and is in $PATH).  Avoid triggering the bug, at the expense of
 | |
|     # falling through to the $() below, incurring a fork.  (Issue #354.)
 | |
|     #
 | |
|     # The first disjunct mimics the isrelative() C call from the zsh bug.
 | |
|     elif {  [[ $1 != */* ]] || is-at-least 5.3 } &&
 | |
|          # Add a subshell to avoid a zsh upstream bug; see issue #606.
 | |
|          # ### Remove the subshell when we stop supporting zsh 5.7.1 (I assume 5.8 will have the bugfix).
 | |
|          ! (builtin type -w -- "$1") >/dev/null 2>&1; then
 | |
|       REPLY=none
 | |
|     fi
 | |
|   fi
 | |
|   if ! (( $+REPLY )); then
 | |
|     # zsh/parameter not available or had no matches.
 | |
|     #
 | |
|     # Note that 'type -w' will run 'rehash' implicitly.
 | |
|     #
 | |
|     # We 'unalias' in a subshell, so the parent shell is not affected.
 | |
|     #
 | |
|     # The colon command is there just to avoid a command substitution that
 | |
|     # starts with an arithmetic expression [«((…))» as the first thing inside
 | |
|     # «$(…)»], which is area that has had some parsing bugs before 5.6
 | |
|     # (approximately).
 | |
|     REPLY="${$(:; (( aliases_allowed )) || unalias -- "$1" 2>/dev/null; LC_ALL=C builtin type -w -- "$1" 2>/dev/null)##*: }"
 | |
|     if [[ $REPLY == 'alias' ]]; then
 | |
|       may_cache=0
 | |
|     fi
 | |
|   fi
 | |
| 
 | |
|   # Cache population
 | |
|   if (( may_cache )) && (( $+_zsh_highlight_main__command_type_cache )); then
 | |
|     _zsh_highlight_main__command_type_cache[(e)$1]=$REPLY
 | |
|   fi
 | |
|   [[ -n $REPLY ]]
 | |
|   return $?
 | |
| }
 | |
| 
 | |
| # Checks whether $1 is something that can be run.
 | |
| #
 | |
| # Return 0 if runnable, 1 if not runnable, 2 if trouble.
 | |
| _zsh_highlight_main__is_runnable() {
 | |
|   if _zsh_highlight_main__type "$1"; then
 | |
|     [[ $REPLY != none ]]
 | |
|   else
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|     return 2
 | |
|   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 >(...)].
 | |
|   # - is not a numeric glob <->
 | |
|   [[ $1 == (<0-9>|)(\<|\>)* ]] && [[ $1 != (\<|\>)$'\x28'* ]] && [[ $1 != *'<'*'-'*'>'* ]]
 | |
| }
 | |
| 
 | |
| # Resolve alias.
 | |
| #
 | |
| # Takes a single argument.
 | |
| #
 | |
| # The result will be stored in REPLY.
 | |
| _zsh_highlight_main__resolve_alias() {
 | |
|   if zmodload -e zsh/parameter; then
 | |
|     REPLY=${aliases[$arg]}
 | |
|   else
 | |
|     REPLY="${"$(alias -- $arg)"#*=}"
 | |
|   fi
 | |
| }
 | |
| 
 | |
| # Return true iff $1 is a global alias
 | |
| _zsh_highlight_main__is_global_alias() {
 | |
|   if zmodload -e zsh/parameter; then
 | |
|     (( ${+galiases[$arg]} ))
 | |
|   elif [[ $arg == '='* ]]; then
 | |
|     # avoid running into «alias -L '=foo'» erroring out with 'bad assignment'
 | |
|     return 1
 | |
|   else
 | |
|     alias -L -g -- "$1" >/dev/null
 | |
|   fi
 | |
| }
 | |
| 
 | |
| # Check that the top of $braces_stack has the expected value.  If it does, set
 | |
| # the style according to $2; otherwise, set style=unknown-token.
 | |
| #
 | |
| # $1: character expected to be at the top of $braces_stack
 | |
| # $2: optional assignment to style it if matches
 | |
| # return value is 0 if there is a match else 1
 | |
| _zsh_highlight_main__stack_pop() {
 | |
|   if [[ $braces_stack[1] == $1 ]]; then
 | |
|     braces_stack=${braces_stack:1}
 | |
|     if (( $+2 )); then
 | |
|       style=$2
 | |
|     fi
 | |
|     return 0
 | |
|   else
 | |
|     style=unknown-token
 | |
|     return 1
 | |
|   fi
 | |
| }
 | |
| 
 | |
| # Main syntax highlighting function.
 | |
| _zsh_highlight_highlighter_main_paint()
 | |
| {
 | |
|   setopt localoptions extendedglob
 | |
| 
 | |
|   # At the PS3 prompt and in vared, highlight nothing.
 | |
|   #
 | |
|   # (We can't check this in _zsh_highlight_highlighter_main_predicate because
 | |
|   # if the predicate returns false, the previous value of region_highlight
 | |
|   # would be reused.)
 | |
|   if [[ $CONTEXT == (select|vared) ]]; then
 | |
|     return
 | |
|   fi
 | |
| 
 | |
|   typeset -a ZSH_HIGHLIGHT_TOKENS_COMMANDSEPARATOR
 | |
|   typeset -a ZSH_HIGHLIGHT_TOKENS_CONTROL_FLOW
 | |
|   local -a options_to_set reply # used in callees
 | |
|   local REPLY
 | |
| 
 | |
|   # $flags_with_argument is a set of letters, corresponding to the option letters
 | |
|   # that would be followed by a colon in a getopts specification.
 | |
|   local flags_with_argument
 | |
|   # $flags_sans_argument is a set of letters, corresponding to the option letters
 | |
|   # that wouldn't be followed by a colon in a getopts specification.
 | |
|   local flags_sans_argument
 | |
|   # $flags_solo is a set of letters, corresponding to option letters that, if
 | |
|   # present, mean the precommand will not be acting as a precommand, i.e., will
 | |
|   # not be followed by a :start: word.
 | |
|   local flags_solo
 | |
|   # $precommand_options maps precommand name to values of $flags_with_argument,
 | |
|   # $flags_sans_argument, and flags_solo for that precommand, joined by a
 | |
|   # colon.  (The value is NOT a getopt(3) spec, although it resembles one.)
 | |
|   #
 | |
|   # Currently, setting $flags_sans_argument is only important for commands that
 | |
|   # have a non-empty $flags_with_argument; see test-data/precommand4.zsh.
 | |
|   local -A precommand_options
 | |
|   precommand_options=(
 | |
|     # Precommand modifiers as of zsh 5.6.2 cf. zshmisc(1).
 | |
|     '-' ''
 | |
|     'builtin' ''
 | |
|     'command' :pvV
 | |
|     'exec' a:cl
 | |
|     'noglob' ''
 | |
|     # 'time' and 'nocorrect' shouldn't be added here; they're reserved words, not precommands.
 | |
| 
 | |
|     'doas' aCu:Lns # as of OpenBSD's doas(1) dated September 4, 2016
 | |
|     'nice' n: # as of current POSIX spec
 | |
|     'pkexec' '' # doesn't take short options; immune to #121 because it's usually not passed --option flags
 | |
|     # Not listed: -h, which has two different meanings.
 | |
|     'sudo' Cgprtu:AEHPSbilns:eKkVv # as of sudo 1.8.21p2
 | |
|     'stdbuf' ioe:
 | |
|     'eatmydata' ''
 | |
|     'catchsegv' ''
 | |
|     'nohup' ''
 | |
|     'setsid' :wc
 | |
|     'env' u:i
 | |
|     'ionice' cn:t:pPu # util-linux 2.33.1-0.1
 | |
|     'strace' IbeaosXPpEuOS:ACdfhikqrtTvVxyDc # strace 4.26-0.2
 | |
| 
 | |
|     # As of OpenSSH 8.1p1
 | |
|     'ssh-agent' aEPt:csDd:k
 | |
|     # suckless-tools v44
 | |
|     # Argumentless flags that can't be followed by a command: -v
 | |
|     'tabbed' gnprtTuU:cdfhs
 | |
| 
 | |
|     # moreutils 0.62-1
 | |
|     'chronic' :ev
 | |
|     'ifne' :n
 | |
| 
 | |
|   )
 | |
|   # Commands that would need to skip one positional argument:
 | |
|   #    flock
 | |
|   #    ssh
 | |
| 
 | |
|   if [[ $zsyh_user_options[ignorebraces] == on || ${zsyh_user_options[ignoreclosebraces]:-off} == on ]]; then
 | |
|     local right_brace_is_recognised_everywhere=false
 | |
|   else
 | |
|     local right_brace_is_recognised_everywhere=true
 | |
|   fi
 | |
| 
 | |
|   if [[ $zsyh_user_options[pathdirs] == on ]]; then
 | |
|     options_to_set+=( PATH_DIRS )
 | |
|   fi
 | |
| 
 | |
|   ZSH_HIGHLIGHT_TOKENS_COMMANDSEPARATOR=(
 | |
|     '|' '||' ';' '&' '&&'
 | |
|     $'\n' # ${(z)} returns ';' but we convert it to $'\n'
 | |
|     '|&'
 | |
|     '&!' '&|'
 | |
|     # ### 'case' syntax, but followed by a pattern, not by a command
 | |
|     # ';;' ';&' ';|'
 | |
|   )
 | |
| 
 | |
|   # 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]
 | |
|   )
 | |
| 
 | |
|   if (( $+X_ZSH_HIGHLIGHT_DIRS_BLACKLIST )); then
 | |
|     print >&2 'zsh-syntax-highlighting: X_ZSH_HIGHLIGHT_DIRS_BLACKLIST is deprecated. Please use ZSH_HIGHLIGHT_DIRS_BLACKLIST.'
 | |
|     ZSH_HIGHLIGHT_DIRS_BLACKLIST=($X_ZSH_HIGHLIGHT_DIRS_BLACKLIST)
 | |
|     unset X_ZSH_HIGHLIGHT_DIRS_BLACKLIST
 | |
|   fi
 | |
| 
 | |
|   _zsh_highlight_main_highlighter_highlight_list -$#PREBUFFER '' 1 "$PREBUFFER$BUFFER"
 | |
| 
 | |
|   # end is a reserved word
 | |
|   local start end_ style
 | |
|   for start end_ style in $reply; do
 | |
|     (( start >= end_ )) && { print -r -- >&2 "zsh-syntax-highlighting: BUG: _zsh_highlight_highlighter_main_paint: start($start) >= end($end_)"; return }
 | |
|     (( end_ <= 0 )) && continue
 | |
|     (( start < 0 )) && start=0 # having start<0 is normal with e.g. multiline strings
 | |
|     _zsh_highlight_main_calculate_fallback $style
 | |
|     _zsh_highlight_add_highlight $start $end_ $reply
 | |
|   done
 | |
| }
 | |
| 
 | |
| # Try to expand $1, if it's possible to do so safely.
 | |
| # 
 | |
| # Uses two parameters from the caller: $parameter_name_pattern and $res.
 | |
| #
 | |
| # If expansion was done, set $reply to the expansion and return true.
 | |
| # Otherwise, return false.
 | |
| _zsh_highlight_main_highlighter__try_expand_parameter()
 | |
| {
 | |
|   local arg="$1"
 | |
|   unset reply
 | |
|   {
 | |
|     # ### For now, expand just '$foo' or '${foo}', possibly with braces, but with
 | |
|     # ### no other features of the parameter expansion syntax.  (No ${(x)foo},
 | |
|     # ### no ${foo[x]}, no ${foo:-x}.)
 | |
|     {
 | |
|       local -a match mbegin mend
 | |
|       local MATCH; integer MBEGIN MEND
 | |
|       local parameter_name
 | |
|       local -a words
 | |
|       if [[ $arg[1] != '$' ]]; then
 | |
|         return 1
 | |
|       fi
 | |
|       if [[ ${arg[2]} == '{' ]] && [[ ${arg[-1]} == '}' ]]; then
 | |
|         parameter_name=${${arg:2}%?}
 | |
|       else
 | |
|         parameter_name=${arg:1}
 | |
|       fi
 | |
|       if [[ $res == none ]] && 
 | |
|          [[ ${parameter_name} =~ ^${~parameter_name_pattern}$ ]] &&
 | |
|          [[ ${(tP)MATCH} != *special* ]]
 | |
|       then
 | |
|         # Set $arg and update $res.
 | |
|         case ${(tP)MATCH} in
 | |
|           (*array*|*assoc*)
 | |
|             words=( ${(P)MATCH} )
 | |
|             ;;
 | |
|           ("")
 | |
|             # not set
 | |
|             words=( )
 | |
|             ;;
 | |
|           (*)
 | |
|             # scalar, presumably
 | |
|             words=( ${(P)MATCH} )
 | |
|             ;;
 | |
|         esac
 | |
|         reply=( "${words[@]}" )
 | |
|       else
 | |
|         return 1
 | |
|       fi
 | |
|     }
 | |
|   }
 | |
| }
 | |
| 
 | |
| # $1 is the offset of $4 from the parent buffer. Added to the returned highlights.
 | |
| # $2 is the initial braces_stack (for a closing paren).
 | |
| # $3 is 1 if $4 contains the end of $BUFFER, else 0.
 | |
| # $4 is the buffer to highlight.
 | |
| # Returns:
 | |
| # $REPLY: $buf[REPLY] is the last character parsed.
 | |
| # $reply is an array of region_highlight additions.
 | |
| # exit code is 0 if the braces_stack is empty, 1 otherwise.
 | |
| _zsh_highlight_main_highlighter_highlight_list()
 | |
| {
 | |
|   integer start_pos end_pos=0 buf_offset=$1 has_end=$3
 | |
|   # alias_style is the style to apply to an alias once in_alias=0
 | |
|   #     Usually 'alias' but set to 'unknown-token' if any word expanded from
 | |
|   #     the alias would be highlighted as unknown-token
 | |
|   # param_style is analogous for parameter expansions
 | |
|   local alias_style param_style last_arg arg buf=$4 highlight_glob=true saw_assignment=false style
 | |
|   local in_array_assignment=false # true between 'a=(' and the matching ')'
 | |
|   # in_alias is equal to the number of shifts needed until arg=args[1] pops an
 | |
|   #     arg from BUFFER and not added by an alias.
 | |
|   # in_param is analogous for parameter expansions
 | |
|   integer in_alias=0 in_param=0 len=$#buf
 | |
|   local -a match mbegin mend list_highlights
 | |
|   # seen_alias is a map of aliases already seen to avoid loops like alias a=b b=a
 | |
|   local -A seen_alias
 | |
|   # Pattern for parameter names
 | |
|   readonly parameter_name_pattern='([A-Za-z_][A-Za-z0-9_]*|[0-9]+)'
 | |
|   list_highlights=()
 | |
| 
 | |
|   # "R" for round
 | |
|   # "Q" for square
 | |
|   # "Y" for curly
 | |
|   # "T" for [[ ]]
 | |
|   # "S" for $( ), =( ), <( ), >( )
 | |
|   # "D" for do/done
 | |
|   # "$" for 'end' (matches 'foreach' always; also used with cshjunkiequotes in repeat/while)
 | |
|   # "?" for 'if'/'fi'; also checked by 'elif'/'else'
 | |
|   # ":" for 'then'
 | |
|   local braces_stack=$2
 | |
| 
 | |
|   # State machine
 | |
|   #
 | |
|   # The states are:
 | |
|   # - :start:      Command word
 | |
|   # - :start_of_pipeline:      Start of a 'pipeline' as defined in zshmisc(1).
 | |
|   #                Only valid when :start: is present
 | |
|   # - :sudo_opt:   A leading-dash option to a precommand, whether it takes an
 | |
|   #                argument or not.  (Example: sudo's "-u" or "-i".)
 | |
|   # - :sudo_arg:   The argument to a precommand's leading-dash option,
 | |
|   #                when given as a separate word; i.e., "foo" in "-u foo" (two
 | |
|   #                words) but not in "-ufoo" (one word).
 | |
|   #    Note:       :sudo_opt: and :sudo_arg: are used for any precommand
 | |
|   #                declared in ${precommand_options}, not just for sudo(8).
 | |
|   #                The naming is historical.
 | |
|   # - :regular:    "Not a command word", and command delimiters are permitted.
 | |
|   #                Mainly used to detect premature termination of commands.
 | |
|   # - :always:     The word 'always' in the «{ foo } always { bar }» syntax.
 | |
|   #
 | |
|   # 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.
 | |
|   #
 | |
|   # $in_redirection is currently used for:
 | |
|   # - comments
 | |
|   # - aliases
 | |
|   # - redirections
 | |
|   # - parameter elision in command position
 | |
|   # - 'repeat' loops
 | |
|   #
 | |
|   local this_word next_word=':start::start_of_pipeline:'
 | |
|   integer in_redirection
 | |
|   # Processing buffer
 | |
|   local proc_buf="$buf"
 | |
|   local -a args
 | |
|   if [[ $zsyh_user_options[interactivecomments] == on ]]; then
 | |
|     args=(${(zZ+c+)buf})
 | |
|   else
 | |
|     args=(${(z)buf})
 | |
|   fi
 | |
| 
 | |
|   # Special case: $(<*) isn't globbing.
 | |
|   if [[ $braces_stack == 'S' ]] && (( $+args[3] && ! $+args[4] )) && [[ $args[3] == $'\x29' ]] &&
 | |
|      [[ $args[1] == *'<'* ]] && _zsh_highlight_main__is_redirection $args[1]; then
 | |
|     highlight_glob=false
 | |
|   fi
 | |
| 
 | |
|   while (( $#args )); do
 | |
|     last_arg=$arg
 | |
|     arg=$args[1]
 | |
|     shift args
 | |
|     if (( in_alias )); then
 | |
|       (( in_alias-- ))
 | |
|       if (( in_alias == 0 )); then
 | |
|         seen_alias=()
 | |
|         # start_pos and end_pos are of the alias (previous $arg) here
 | |
|         _zsh_highlight_main_add_region_highlight $start_pos $end_pos $alias_style
 | |
|       fi
 | |
|     fi
 | |
|     if (( in_param )); then
 | |
|       (( in_param-- ))
 | |
|       if (( in_param == 0 )); then
 | |
|         # start_pos and end_pos are of the '$foo' word (previous $arg) here
 | |
|         _zsh_highlight_main_add_region_highlight $start_pos $end_pos $param_style
 | |
|         param_style=""
 | |
|       fi
 | |
|     fi
 | |
| 
 | |
|     # Initialize this_word and next_word.
 | |
|     if (( in_redirection == 0 )); then
 | |
|       this_word=$next_word
 | |
|       next_word=':regular:'
 | |
|     else
 | |
|       # Stall $next_word.
 | |
|       (( --in_redirection ))
 | |
|     fi
 | |
| 
 | |
|     # Initialize per-"simple command" [zshmisc(1)] variables:
 | |
|     #
 | |
|     #   $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"
 | |
|     #   $saw_assignment      boolean flag for "was preceded by an assignment"
 | |
|     #
 | |
|     style=unknown-token
 | |
|     if [[ $this_word == *':start:'* ]]; then
 | |
|       in_array_assignment=false
 | |
|       if [[ $arg == 'noglob' ]]; then
 | |
|         highlight_glob=false
 | |
|       fi
 | |
|     fi
 | |
| 
 | |
|     if (( in_alias == 0 && in_param == 0 )); then
 | |
|       # Compute the new $start_pos and $end_pos, skipping over whitespace in $buf.
 | |
|       [[ "$proc_buf" = (#b)(#s)(([ $'\t']|[\\]$'\n')#)(?|)* ]]
 | |
|       # The first, outer parenthesis
 | |
|       integer offset="${#match[1]}"
 | |
|       (( start_pos = end_pos + offset ))
 | |
|       (( end_pos = start_pos + $#arg ))
 | |
| 
 | |
|       # The zsh lexer considers ';' and newline to be the same token, so
 | |
|       # ${(z)} converts all newlines to semicolons. Convert them back here to
 | |
|       # make later processing simpler.
 | |
|       [[ $arg == ';' && ${match[3]} == $'\n' ]] && arg=$'\n'
 | |
| 
 | |
|       # Compute the 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]}"
 | |
|     fi
 | |
| 
 | |
|     # Handle the INTERACTIVE_COMMENTS option.
 | |
|     #
 | |
|     # We use the (Z+c+) flag so the entire comment is presented as one token in $arg.
 | |
|     if [[ $zsyh_user_options[interactivecomments] == on && $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
 | |
|       # Stall this arg
 | |
|       in_redirection=1
 | |
|       continue
 | |
|     fi
 | |
| 
 | |
|     if [[ $this_word == *':start:'* ]] && ! (( in_redirection )); then
 | |
|       # Expand aliases.
 | |
|       # An alias is ineligible for expansion while it's being expanded (see #652/#653).
 | |
|       _zsh_highlight_main__type "$arg" "$(( ! ${+seen_alias[$arg]} ))"
 | |
|       local res="$REPLY"
 | |
|       if [[ $res == "alias" ]]; then
 | |
|         # Mark insane aliases as unknown-token (cf. #263).
 | |
|         if [[ $arg == ?*=* ]]; then
 | |
|           (( in_alias == 0 )) && in_alias=1
 | |
|           _zsh_highlight_main_add_region_highlight $start_pos $end_pos unknown-token
 | |
|           continue
 | |
|         fi
 | |
|         seen_alias[$arg]=1
 | |
|         _zsh_highlight_main__resolve_alias $arg
 | |
|         local -a alias_args
 | |
|         # Elision is desired in case alias x=''
 | |
|         if [[ $zsyh_user_options[interactivecomments] == on ]]; then
 | |
|           alias_args=(${(zZ+c+)REPLY})
 | |
|         else
 | |
|           alias_args=(${(z)REPLY})
 | |
|         fi
 | |
|         args=( $alias_args $args )
 | |
|         if (( in_alias == 0 )); then
 | |
|           alias_style=alias
 | |
|           # Add one because we will in_alias-- on the next loop iteration so
 | |
|           # this iteration should be considered in in_alias as well
 | |
|           (( in_alias += $#alias_args + 1 ))
 | |
|         else
 | |
|           # This arg is already included in the count, so no need to + 1.
 | |
|           (( in_alias += $#alias_args ))
 | |
|         fi
 | |
|         (( in_redirection++ )) # Stall this arg
 | |
|         continue
 | |
|       else
 | |
|         _zsh_highlight_main_highlighter_expand_path $arg
 | |
|         _zsh_highlight_main__type "$REPLY" 0
 | |
|         res="$REPLY"
 | |
|       fi
 | |
|     fi
 | |
| 
 | |
|     # Analyse the current word.
 | |
|     if _zsh_highlight_main__is_redirection $arg ; then
 | |
|       if (( in_redirection == 1 )); then
 | |
|         # Two consecuive redirection operators is an error.
 | |
|         _zsh_highlight_main_add_region_highlight $start_pos $end_pos unknown-token
 | |
|       else
 | |
|         in_redirection=2
 | |
|         _zsh_highlight_main_add_region_highlight $start_pos $end_pos redirection
 | |
|       fi
 | |
|       continue
 | |
|     elif [[ $arg == '{'${~parameter_name_pattern}'}' ]] && _zsh_highlight_main__is_redirection $args[1]; then
 | |
|       # named file descriptor: {foo}>&2
 | |
|       in_redirection=3
 | |
|       _zsh_highlight_main_add_region_highlight $start_pos $end_pos named-fd
 | |
|       continue
 | |
|     fi
 | |
| 
 | |
|     # Expand parameters.
 | |
|     if (( ! in_param )) && _zsh_highlight_main_highlighter__try_expand_parameter "$arg"; then
 | |
|       # 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 words; words=( "${reply[@]}" )
 | |
|         if (( $#words == 0 )) && (( ! in_redirection )); then
 | |
|           # Parameter elision is happening
 | |
|           (( ++in_redirection ))
 | |
|           _zsh_highlight_main_add_region_highlight $start_pos $end_pos comment
 | |
|           continue
 | |
|         else
 | |
|           (( in_param = 1 + $#words ))
 | |
|           args=( $words $args )
 | |
|           arg=$args[1]
 | |
|           _zsh_highlight_main__type "$arg" 0
 | |
|           res=$REPLY
 | |
|         fi
 | |
|       }
 | |
|     fi
 | |
| 
 | |
|     # Parse the sudo command line
 | |
|     if (( ! in_redirection )); then
 | |
|       if [[ $this_word == *':sudo_opt:'* ]]; then
 | |
|         if [[ -n $flags_with_argument ]] &&
 | |
|            { 
 | |
|              # Trenary
 | |
|              if [[ -n $flags_sans_argument ]]
 | |
|              then [[ $arg == '-'[$flags_sans_argument]#[$flags_with_argument] ]]
 | |
|              else [[ $arg == '-'[$flags_with_argument] ]]
 | |
|              fi
 | |
|            } then
 | |
|           # Flag that requires an argument
 | |
|           this_word=${this_word//:start:/}
 | |
|           next_word=':sudo_arg:'
 | |
|         elif [[ -n $flags_with_argument ]] &&
 | |
|              {
 | |
|                # Trenary
 | |
|                if [[ -n $flags_sans_argument ]]
 | |
|                then [[ $arg == '-'[$flags_sans_argument]#[$flags_with_argument]* ]]
 | |
|                else [[ $arg == '-'[$flags_with_argument]* ]]
 | |
|                fi
 | |
|              } then
 | |
|           # Argument attached in the same word
 | |
|           this_word=${this_word//:start:/}
 | |
|           next_word+=':start:'
 | |
|           next_word+=':sudo_opt:'
 | |
|         elif [[ -n $flags_sans_argument ]] &&
 | |
|              [[ $arg == '-'[$flags_sans_argument]# ]]; then
 | |
|           # Flag that requires no argument
 | |
|           this_word=':sudo_opt:'
 | |
|           next_word+=':start:'
 | |
|           next_word+=':sudo_opt:'
 | |
|         elif [[ -n $flags_solo ]] && 
 | |
|              {
 | |
|                # Trenary
 | |
|                if [[ -n $flags_sans_argument ]]
 | |
|                then [[ $arg == '-'[$flags_sans_argument]#[$flags_solo]* ]]
 | |
|                else [[ $arg == '-'[$flags_solo]* ]]
 | |
|                fi
 | |
|              } then
 | |
|           # Solo flags
 | |
|           this_word=':sudo_opt:'
 | |
|           next_word=':regular:' # no :start:, nor :sudo_opt: since we don't know whether the solo flag takes an argument or not
 | |
|         elif [[ $arg == '-'* ]]; then
 | |
|           # Unknown flag.  We don't know whether it takes an argument or not,
 | |
|           # so modify $next_word as we do for flags that require no argument.
 | |
|           # With that behaviour, if the flag in fact takes no argument we'll
 | |
|           # highlight the inner command word correctly, and if it does take an
 | |
|           # argument we'll highlight the command word correctly if the argument
 | |
|           # was given in the same shell word as the flag (as in '-uphy1729' or
 | |
|           # '--user=phy1729' without spaces).
 | |
|           this_word=':sudo_opt:'
 | |
|           next_word+=':start:'
 | |
|           next_word+=':sudo_opt:'
 | |
|         else
 | |
|           # Not an option flag; nothing to do.  (If the command line is
 | |
|           # syntactically valid, ${this_word//:sudo_opt:/} should be
 | |
|           # non-empty now.)
 | |
|           this_word=${this_word//:sudo_opt:/}
 | |
|         fi
 | |
|       elif [[ $this_word == *':sudo_arg:'* ]]; then
 | |
|         next_word+=':sudo_opt:'
 | |
|         next_word+=':start:'
 | |
|       fi
 | |
|     fi
 | |
| 
 | |
|     # The Great Fork: is this a command word?  Is this a non-command word?
 | |
|     if [[ -n ${(M)ZSH_HIGHLIGHT_TOKENS_COMMANDSEPARATOR:#"$arg"} ]] &&
 | |
|        [[ $braces_stack != *T* || $arg != ('||'|'&&') ]]; then
 | |
| 
 | |
|       # First, determine the style of the command separator itself.
 | |
|       if _zsh_highlight_main__stack_pop T || _zsh_highlight_main__stack_pop Q; then
 | |
|         # Missing closing square bracket(s)
 | |
|         style=unknown-token
 | |
|       elif $in_array_assignment; then
 | |
|         case $arg in
 | |
|           # Literal newlines are just fine.
 | |
|           ($'\n') style=commandseparator;;
 | |
|           # Semicolons are parsed the same way as literal newlines.  Nevertheless,
 | |
|           # highlight them as errors since they're probably unintended.  Compare
 | |
|           # issue #691.
 | |
|           (';') style=unknown-token;;
 | |
|           # Other command separators aren't allowed.
 | |
|           (*) style=unknown-token;;
 | |
|         esac
 | |
|       elif [[ $this_word == *':regular:'* ]]; then
 | |
|         style=commandseparator
 | |
|       elif [[ $this_word == *':start:'* ]] && [[ $arg == $'\n' ]]; then
 | |
|         style=commandseparator
 | |
|       else
 | |
|         # This highlights empty commands (semicolon follows nothing) as an error.
 | |
|         # Zsh accepts them, though.
 | |
|         style=unknown-token
 | |
|       fi
 | |
| 
 | |
|       # Second, determine the style of next_word.
 | |
|       if [[ $arg == $'\n' ]] && $in_array_assignment; then
 | |
|         # literal newline inside an array assignment
 | |
|         next_word=':regular:'
 | |
|       elif [[ $arg == ';' ]] && $in_array_assignment; then
 | |
|         # literal semicolon inside an array assignment
 | |
|         next_word=':regular:'
 | |
|       else
 | |
|         next_word=':start:'
 | |
|         highlight_glob=true
 | |
|         saw_assignment=false
 | |
|         if [[ $arg != '|' && $arg != '|&' ]]; then
 | |
|           next_word+=':start_of_pipeline:'
 | |
|         fi
 | |
|       fi
 | |
| 
 | |
|     elif ! (( in_redirection)) && [[ $this_word == *':always:'* && $arg == 'always' ]]; then
 | |
|       # try-always construct
 | |
|       style=reserved-word # de facto a reserved word, although not de jure
 | |
|       highlight_glob=true
 | |
|       saw_assignment=false
 | |
|       next_word=':start::start_of_pipeline:' # only left brace is allowed, apparently
 | |
|     elif ! (( in_redirection)) && [[ $this_word == *':start:'* ]]; then # $arg is the command word
 | |
|       if (( ${+precommand_options[$arg]} )) && _zsh_highlight_main__is_runnable $arg; then
 | |
|         style=precommand
 | |
|         () {
 | |
|           set -- "${(@s.:.)precommand_options[$arg]}"
 | |
|           flags_with_argument=$1
 | |
|           flags_sans_argument=$2
 | |
|           flags_solo=$3
 | |
|         }
 | |
|         next_word=${next_word//:regular:/}
 | |
|         next_word+=':sudo_opt:'
 | |
|         next_word+=':start:'
 | |
|         if [[ $arg == 'exec' ]]; then
 | |
|           # To allow "exec 2>&1;" where there's no command word
 | |
|           next_word+=':regular:'
 | |
|         fi
 | |
|       else
 | |
|         case $res in
 | |
|           (reserved)    # reserved word
 | |
|                         style=reserved-word
 | |
|                         # Match braces and handle special cases.
 | |
|                         case $arg in
 | |
|                           (time|nocorrect)
 | |
|                             next_word=${next_word//:regular:/}
 | |
|                             next_word+=':start:'
 | |
|                             ;;
 | |
|                           ($'\x7b')
 | |
|                             braces_stack='Y'"$braces_stack"
 | |
|                             ;;
 | |
|                           ($'\x7d')
 | |
|                             # We're at command word, so no need to check $right_brace_is_recognised_everywhere
 | |
|                             _zsh_highlight_main__stack_pop 'Y' reserved-word
 | |
|                             if [[ $style == reserved-word ]]; then
 | |
|                               next_word+=':always:'
 | |
|                             fi
 | |
|                             ;;
 | |
|                           ($'\x5b\x5b')
 | |
|                             braces_stack='T'"$braces_stack"
 | |
|                             ;;
 | |
|                           ('do')
 | |
|                             braces_stack='D'"$braces_stack"
 | |
|                             ;;
 | |
|                           ('done')
 | |
|                             _zsh_highlight_main__stack_pop 'D' reserved-word
 | |
|                             ;;
 | |
|                           ('if')
 | |
|                             braces_stack=':?'"$braces_stack"
 | |
|                             ;;
 | |
|                           ('then')
 | |
|                             _zsh_highlight_main__stack_pop ':' reserved-word
 | |
|                             ;;
 | |
|                           ('elif')
 | |
|                             if [[ ${braces_stack[1]} == '?' ]]; then
 | |
|                               braces_stack=':'"$braces_stack"
 | |
|                             else
 | |
|                               style=unknown-token
 | |
|                             fi
 | |
|                             ;;
 | |
|                           ('else')
 | |
|                             if [[ ${braces_stack[1]} == '?' ]]; then
 | |
|                               :
 | |
|                             else
 | |
|                               style=unknown-token
 | |
|                             fi
 | |
|                             ;;
 | |
|                           ('fi')
 | |
|                             _zsh_highlight_main__stack_pop '?'
 | |
|                             ;;
 | |
|                           ('foreach')
 | |
|                             braces_stack='$'"$braces_stack"
 | |
|                             ;;
 | |
|                           ('end')
 | |
|                             _zsh_highlight_main__stack_pop '$' reserved-word
 | |
|                             ;;
 | |
|                           ('repeat')
 | |
|                             # 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:'
 | |
|                             ;;
 | |
|                           ('!')
 | |
|                             if [[ $this_word != *':start_of_pipeline:'* ]]; then
 | |
|                               style=unknown-token
 | |
|                             else
 | |
|                               # '!' reserved word at start of pipeline; style already set above
 | |
|                             fi
 | |
|                             ;;
 | |
|                         esac
 | |
|                         if $saw_assignment && [[ $style != unknown-token ]]; then
 | |
|                           style=unknown-token
 | |
|                         fi
 | |
|                         ;;
 | |
|           ('suffix alias')
 | |
|                         style=suffix-alias
 | |
|                         ;;
 | |
|           ('global alias')
 | |
|                         style=global-alias
 | |
|                         ;;
 | |
|           (alias)       :;;
 | |
|           (builtin)     style=builtin
 | |
|                         [[ $arg == $'\x5b' ]] && braces_stack='Q'"$braces_stack"
 | |
|                         ;;
 | |
|           (function)    style=function;;
 | |
|           (command)     style=command;;
 | |
|           (hashed)      style=hashed-command;;
 | |
|           (none)        if (( ! in_param )) && _zsh_highlight_main_highlighter_check_assign; then
 | |
|                           _zsh_highlight_main_add_region_highlight $start_pos $end_pos assign
 | |
|                           local i=$(( arg[(i)=] + 1 ))
 | |
|                           saw_assignment=true
 | |
|                           if [[ $arg[i] == '(' ]]; then
 | |
|                             in_array_assignment=true
 | |
|                           else
 | |
|                             # assignment to a scalar parameter.
 | |
|                             # (For array assignments, the command doesn't start until the ")" token.)
 | |
|                             # 
 | |
|                             # Discard  :start_of_pipeline:, if present, as '!' is not valid
 | |
|                             # after assignments.
 | |
|                             next_word+=':start:'
 | |
|                             if (( i <= $#arg )); then
 | |
|                               () {
 | |
|                                 local highlight_glob=false
 | |
|                                 [[ $zsyh_user_options[globassign] == on ]] && highlight_glob=true
 | |
|                                 _zsh_highlight_main_highlighter_highlight_argument $i
 | |
|                               }
 | |
|                             fi
 | |
|                           fi
 | |
|                           continue
 | |
|                         elif (( ! in_param )) &&
 | |
|                              [[ $arg[0,1] = $histchars[0,1] ]] && (( $#arg[0,2] == 2 )); then
 | |
|                           style=history-expansion
 | |
|                         elif (( ! in_param )) &&
 | |
|                              [[ $arg[0,1] == $histchars[2,2] ]]; then
 | |
|                           style=history-expansion
 | |
|                         elif (( ! in_param )) &&
 | |
|                              ! $saw_assignment &&
 | |
|                              [[ $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.
 | |
|                           _zsh_highlight_main_add_region_highlight $start_pos $((start_pos + 2)) reserved-word
 | |
|                           if [[ $arg[-2,-1] == '))' ]]; then
 | |
|                             _zsh_highlight_main_add_region_highlight $((end_pos - 2)) $end_pos reserved-word
 | |
|                           fi
 | |
|                           continue
 | |
|                         elif (( ! in_param )) &&
 | |
|                              [[ $arg == '()' ]]; then
 | |
|                           # anonymous function
 | |
|                           style=reserved-word
 | |
|                         elif (( ! in_param )) &&
 | |
|                              ! $saw_assignment &&
 | |
|                              [[ $arg == $'\x28' ]]; then
 | |
|                           # subshell
 | |
|                           style=reserved-word
 | |
|                           braces_stack='R'"$braces_stack"
 | |
|                         elif (( ! in_param )) &&
 | |
|                              [[ $arg == $'\x29' ]]; then
 | |
|                           # end of subshell or command substitution
 | |
|                           if _zsh_highlight_main__stack_pop 'S'; then
 | |
|                             REPLY=$start_pos
 | |
|                             reply=($list_highlights)
 | |
|                             return 0
 | |
|                           fi
 | |
|                           _zsh_highlight_main__stack_pop 'R' reserved-word
 | |
|                         else
 | |
|                           if _zsh_highlight_main_highlighter_check_path $arg 1; then
 | |
|                             style=$REPLY
 | |
|                           else
 | |
|                             style=unknown-token
 | |
|                           fi
 | |
|                         fi
 | |
|                         ;;
 | |
|           (*)           _zsh_highlight_main_add_region_highlight $start_pos $end_pos arg0_$res
 | |
|                         continue
 | |
|                         ;;
 | |
|         esac
 | |
|       fi
 | |
|       if [[ -n ${(M)ZSH_HIGHLIGHT_TOKENS_CONTROL_FLOW:#"$arg"} ]]; then
 | |
|         next_word=':start::start_of_pipeline:'
 | |
|       fi
 | |
|     elif _zsh_highlight_main__is_global_alias "$arg"; then # $arg is a global alias that isn't in command position
 | |
|       style=global-alias
 | |
|     else # $arg is a non-command word
 | |
|       case $arg in
 | |
|         ($'\x29')
 | |
|                   # subshell or end of array assignment
 | |
|                   if $in_array_assignment; then
 | |
|                     style=assign
 | |
|                     in_array_assignment=false
 | |
|                     next_word+=':start:'
 | |
|                   elif (( in_redirection )); then
 | |
|                     style=unknown-token
 | |
|                   else
 | |
|                     if _zsh_highlight_main__stack_pop 'S'; then
 | |
|                       REPLY=$start_pos
 | |
|                       reply=($list_highlights)
 | |
|                       return 0
 | |
|                     fi
 | |
|                     _zsh_highlight_main__stack_pop 'R' reserved-word
 | |
|                   fi
 | |
|                   ;;
 | |
|         ($'\x28\x29')
 | |
|                   # possibly a function definition
 | |
|                   if (( in_redirection )) || $in_array_assignment; then
 | |
|                     style=unknown-token
 | |
|                   else
 | |
|                     if [[ $zsyh_user_options[multifuncdef] == on ]] || false # TODO: or if the previous word was a command word
 | |
|                     then
 | |
|                       next_word+=':start::start_of_pipeline:'
 | |
|                     fi
 | |
|                     style=reserved-word
 | |
|                   fi
 | |
|                   ;;
 | |
|         (*)       if false; then
 | |
|                   elif [[ $arg = $'\x7d' ]] && $right_brace_is_recognised_everywhere; then
 | |
|                     # Parsing rule: {
 | |
|                     #
 | |
|                     #     Additionally, `tt(})' is recognized in any position if neither the
 | |
|                     #     tt(IGNORE_BRACES) option nor the tt(IGNORE_CLOSE_BRACES) option is set.
 | |
|                     if (( in_redirection )) || $in_array_assignment; then
 | |
|                       style=unknown-token
 | |
|                     else
 | |
|                       _zsh_highlight_main__stack_pop 'Y' reserved-word
 | |
|                       if [[ $style == reserved-word ]]; then
 | |
|                         next_word+=':always:'
 | |
|                       fi
 | |
|                     fi
 | |
|                   elif [[ $arg[0,1] = $histchars[0,1] ]] && (( $#arg[0,2] == 2 )); then
 | |
|                     style=history-expansion
 | |
|                   elif [[ $arg == $'\x5d\x5d' ]] && _zsh_highlight_main__stack_pop 'T' reserved-word; then
 | |
|                     :
 | |
|                   elif [[ $arg == $'\x5d' ]] && _zsh_highlight_main__stack_pop 'Q' builtin; then
 | |
|                     :
 | |
|                   else
 | |
|                     _zsh_highlight_main_highlighter_highlight_argument 1 $(( 1 != in_redirection ))
 | |
|                     continue
 | |
|                   fi
 | |
|                   ;;
 | |
|       esac
 | |
|     fi
 | |
|     _zsh_highlight_main_add_region_highlight $start_pos $end_pos $style
 | |
|   done
 | |
|   (( in_alias == 1 )) && in_alias=0 _zsh_highlight_main_add_region_highlight $start_pos $end_pos $alias_style
 | |
|   (( in_param == 1 )) && in_param=0 _zsh_highlight_main_add_region_highlight $start_pos $end_pos $param_style
 | |
|   [[ "$proc_buf" = (#b)(#s)(([[:space:]]|\\$'\n')#) ]]
 | |
|   REPLY=$(( end_pos + ${#match[1]} - 1 ))
 | |
|   reply=($list_highlights)
 | |
|   return $(( $#braces_stack > 0 ))
 | |
| }
 | |
| 
 | |
| # 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=$1_pathseparator
 | |
|   reply=()
 | |
|   [[ -z "$ZSH_HIGHLIGHT_STYLES[$style_pathsep]" || "$ZSH_HIGHLIGHT_STYLES[$1]" == "$ZSH_HIGHLIGHT_STYLES[$style_pathsep]" ]] && return 0
 | |
|   for (( pos = start_pos; $pos <= end_pos; pos++ )) ; do
 | |
|     if [[ $BUFFER[pos] == / ]]; then
 | |
|       reply+=($((pos - 1)) $pos $style_pathsep)
 | |
|     fi
 | |
|   done
 | |
| }
 | |
| 
 | |
| # Check if $1 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).
 | |
| #
 | |
| # $2 should be non-zero iff we're in command position.
 | |
| _zsh_highlight_main_highlighter_check_path()
 | |
| {
 | |
|   _zsh_highlight_main_highlighter_expand_path "$1"
 | |
|   local expanded_path="$REPLY" tmp_path
 | |
|   integer in_command_position=$2
 | |
| 
 | |
|   if [[ $zsyh_user_options[autocd] == on ]]; then
 | |
|     integer autocd=1
 | |
|   else
 | |
|     integer autocd=0
 | |
|   fi
 | |
| 
 | |
|   if (( in_command_position )); then
 | |
|     # ### Currently, this value is never returned: either it's overwritten
 | |
|     # ### below, or the return code is non-zero
 | |
|     REPLY=arg0
 | |
|   else
 | |
|     REPLY=path
 | |
|   fi
 | |
| 
 | |
|   if [[ ${1[1]} == '=' && $1 == ??* && ${1[2]} != $'\x28' && $zsyh_user_options[equals] == 'on' && $expanded_path[1] != '/' ]]; then
 | |
|     REPLY=unknown-token # will error out if executed
 | |
|     return 0
 | |
|   fi
 | |
| 
 | |
|   [[ -z $expanded_path ]] && return 1
 | |
| 
 | |
|   # Check if this is a blacklisted path
 | |
|   if [[ $expanded_path[1] == / ]]; then
 | |
|     tmp_path=$expanded_path
 | |
|   else
 | |
|     tmp_path=$PWD/$expanded_path
 | |
|   fi
 | |
|   tmp_path=$tmp_path:a
 | |
| 
 | |
|   while [[ $tmp_path != / ]]; do
 | |
|     [[ -n ${(M)ZSH_HIGHLIGHT_DIRS_BLACKLIST:#$tmp_path} ]] && return 1
 | |
|     tmp_path=$tmp_path:h
 | |
|   done
 | |
| 
 | |
|   if (( in_command_position )); then
 | |
|     if [[ -x $expanded_path ]]; then
 | |
|       if (( autocd )); then
 | |
|         if [[ -d $expanded_path ]]; then
 | |
|           REPLY=autodirectory
 | |
|         fi
 | |
|         return 0
 | |
|       elif [[ ! -d $expanded_path ]]; then
 | |
|         # ### This seems unreachable for the current callers
 | |
|         return 0
 | |
|       fi
 | |
|     fi
 | |
|   else
 | |
|     if [[ -L $expanded_path || -e $expanded_path ]]; then
 | |
|       return 0
 | |
|     fi
 | |
|   fi
 | |
| 
 | |
|   # Search the path in CDPATH
 | |
|   if [[ $expanded_path != /* ]] && (( autocd || ! in_command_position )); then
 | |
|     # TODO: When we've dropped support for pre-5.0.6 zsh, use the *(Y1) glob qualifier here.
 | |
|     local cdpath_dir
 | |
|     for cdpath_dir in $cdpath ; do
 | |
|       if [[ -d "$cdpath_dir/$expanded_path" && -x "$cdpath_dir/$expanded_path" ]]; then
 | |
|         if (( in_command_position && autocd )); then
 | |
|           REPLY=autodirectory
 | |
|         fi
 | |
|         return 0
 | |
|       fi
 | |
|     done
 | |
|   fi
 | |
| 
 | |
|   # If dirname($1) doesn't exist, neither does $1.
 | |
|   [[ ! -d ${expanded_path:h} ]] && return 1
 | |
| 
 | |
|   # If this word ends the buffer, check if it's the prefix of a valid path.
 | |
|   if (( has_end && (len == end_pos) )) &&
 | |
|      (( ! in_alias )) &&
 | |
|      [[ $WIDGET != zle-line-finish ]]; then
 | |
|     # TODO: When we've dropped support for pre-5.0.6 zsh, use the *(Y1) glob qualifier here.
 | |
|     local -a tmp
 | |
|     if (( in_command_position )); then
 | |
|       # We include directories even when autocd is enabled, because those
 | |
|       # directories might contain executable files: e.g., BUFFER="/bi" en route
 | |
|       # to typing "/bin/sh".
 | |
|       tmp=( ${expanded_path}*(N-*,N-/) )
 | |
|     else
 | |
|       tmp=( ${expanded_path}*(N) )
 | |
|     fi
 | |
|     (( ${+tmp[1]} )) && REPLY=path_prefix && return 0
 | |
|   fi
 | |
| 
 | |
|   # It's not a path.
 | |
|   return 1
 | |
| }
 | |
| 
 | |
| # Highlight an argument and possibly special chars in quotes starting at $1 in $arg
 | |
| # This command will at least highlight $1 to end_pos with the default style
 | |
| # If $2 is set to 0, the argument cannot be highlighted as an option.
 | |
| #
 | |
| # This function currently assumes it's never called for the command word.
 | |
| _zsh_highlight_main_highlighter_highlight_argument()
 | |
| {
 | |
|   local base_style=default i=$1 option_eligible=${2:-1} path_eligible=1 ret start style
 | |
|   local -a highlights
 | |
| 
 | |
|   local -a match mbegin mend
 | |
|   local MATCH; integer MBEGIN MEND
 | |
| 
 | |
|   case "$arg[i]" in
 | |
|     '%')
 | |
|       if [[ $arg[i+1] == '?' ]]; then
 | |
|         (( i += 2 ))
 | |
|       fi
 | |
|       ;;
 | |
|     '-')
 | |
|       if (( option_eligible )); then
 | |
|         if [[ $arg[i+1] == - ]]; then
 | |
|           base_style=double-hyphen-option
 | |
|         else
 | |
|           base_style=single-hyphen-option
 | |
|         fi
 | |
|         path_eligible=0
 | |
|       fi
 | |
|       ;;
 | |
|     '=')
 | |
|       if [[ $arg[i+1] == $'\x28' ]]; then
 | |
|         (( i += 2 ))
 | |
|         _zsh_highlight_main_highlighter_highlight_list $(( start_pos + i - 1 )) S $has_end $arg[i,-1]
 | |
|         ret=$?
 | |
|         (( i += REPLY ))
 | |
|         highlights+=(
 | |
|           $(( start_pos + $1 - 1 )) $(( start_pos + i )) process-substitution
 | |
|           $(( start_pos + $1 - 1 )) $(( start_pos + $1 + 1 )) process-substitution-delimiter
 | |
|           $reply
 | |
|         )
 | |
|         if (( ret == 0 )); then
 | |
|           highlights+=($(( start_pos + i - 1 )) $(( start_pos + i )) process-substitution-delimiter)
 | |
|         fi
 | |
|       fi
 | |
|   esac
 | |
| 
 | |
|   for (( ; i <= $#arg ; i += 1 )); do
 | |
|     case "$arg[$i]" in
 | |
|       "\\") (( i += 1 )); continue;;
 | |
|       "'")
 | |
|         _zsh_highlight_main_highlighter_highlight_single_quote $i
 | |
|         (( i = REPLY ))
 | |
|         highlights+=($reply)
 | |
|         ;;
 | |
|       '"')
 | |
|         _zsh_highlight_main_highlighter_highlight_double_quote $i
 | |
|         (( i = REPLY ))
 | |
|         highlights+=($reply)
 | |
|         ;;
 | |
|       '`')
 | |
|         _zsh_highlight_main_highlighter_highlight_backtick $i
 | |
|         (( i = REPLY ))
 | |
|         highlights+=($reply)
 | |
|         ;;
 | |
|       '$')
 | |
|         if [[ $arg[i+1] != "'" ]]; then
 | |
|           path_eligible=0
 | |
|         fi
 | |
|         if [[ $arg[i+1] == "'" ]]; then
 | |
|           _zsh_highlight_main_highlighter_highlight_dollar_quote $i
 | |
|           (( i = REPLY ))
 | |
|           highlights+=($reply)
 | |
|           continue
 | |
|         elif [[ $arg[i+1] == $'\x28' && ${arg:$i} != $'\x28\x28'*$'\x29\x29'* ]]; then
 | |
|           # command substitution that doesn't look like an arithmetic expansion
 | |
|           start=$i
 | |
|           (( i += 2 ))
 | |
|           _zsh_highlight_main_highlighter_highlight_list $(( start_pos + i - 1 )) S $has_end $arg[i,-1]
 | |
|           ret=$?
 | |
|           (( i += REPLY ))
 | |
|           highlights+=(
 | |
|             $(( start_pos + start - 1)) $(( start_pos + i )) command-substitution-unquoted
 | |
|             $(( start_pos + start - 1)) $(( start_pos + start + 1)) command-substitution-delimiter-unquoted
 | |
|             $reply
 | |
|           )
 | |
|           if (( ret == 0 )); then
 | |
|             highlights+=($(( start_pos + i - 1)) $(( start_pos + i )) command-substitution-delimiter-unquoted)
 | |
|           fi
 | |
|           continue
 | |
|         else
 | |
|           # TODO: if it's an arithmetic expansion, skip past it, to prevent
 | |
|           # multiplications from being highlighted as globbing (issue #607,
 | |
|           # test-data/arith1.zsh)
 | |
|         fi
 | |
|         while [[ $arg[i+1] == [=~#+'^'] ]]; do
 | |
|           (( i += 1 ))
 | |
|         done
 | |
|         if [[ $arg[i+1] == [*@#?$!-] ]]; then
 | |
|           (( i += 1 ))
 | |
|         fi;;
 | |
|       [\<\>])
 | |
|         if [[ $arg[i+1] == $'\x28' ]]; then # \x28 = open paren
 | |
|           start=$i
 | |
|           (( i += 2 ))
 | |
|           _zsh_highlight_main_highlighter_highlight_list $(( start_pos + i - 1 )) S $has_end $arg[i,-1]
 | |
|           ret=$?
 | |
|           (( i += REPLY ))
 | |
|           highlights+=(
 | |
|             $(( start_pos + start - 1)) $(( start_pos + i )) process-substitution
 | |
|             $(( start_pos + start - 1)) $(( start_pos + start + 1 )) process-substitution-delimiter
 | |
|             $reply
 | |
|           )
 | |
|           if (( ret == 0 )); then
 | |
|             highlights+=($(( start_pos + i - 1)) $(( start_pos + i )) process-substitution-delimiter)
 | |
|           fi
 | |
|           continue
 | |
|         fi
 | |
|         ;|
 | |
|       *)
 | |
|         if $highlight_glob &&
 | |
|            [[ $zsyh_user_options[multios] == on || $in_redirection -eq 0 ]] &&
 | |
|            [[ ${arg[$i]} =~ ^[*?] || ${arg:$i-1} =~ ^\<[0-9]*-[0-9]*\> ]]; then
 | |
|           highlights+=($(( start_pos + i - 1 )) $(( start_pos + i + $#MATCH - 1)) globbing)
 | |
|           (( i += $#MATCH - 1 ))
 | |
|           path_eligible=0
 | |
|         else
 | |
|           continue
 | |
|         fi
 | |
|         ;;
 | |
|     esac
 | |
|   done
 | |
| 
 | |
|   if (( path_eligible )); then
 | |
|     if (( in_redirection )) && [[ $last_arg == *['<>']['&'] && $arg[$1,-1] == (<0->|p|-) ]]; then
 | |
|       if [[ $arg[$1,-1] == (p|-) ]]; then
 | |
|         base_style=redirection
 | |
|       else
 | |
|         base_style=numeric-fd
 | |
|       fi
 | |
|     # This function is currently never called for the command word, so $2 is hard-coded as 0.
 | |
|     elif _zsh_highlight_main_highlighter_check_path $arg[$1,-1] 0; then
 | |
|       base_style=$REPLY
 | |
|       _zsh_highlight_main_highlighter_highlight_path_separators $base_style
 | |
|       highlights+=($reply)
 | |
|     fi
 | |
|   fi
 | |
| 
 | |
|   highlights=($(( start_pos + $1 - 1 )) $end_pos $base_style $highlights)
 | |
|   _zsh_highlight_main_add_many_region_highlights $highlights
 | |
| }
 | |
| 
 | |
| # Quote Helper Functions
 | |
| #
 | |
| # $arg is expected to be set to the current argument
 | |
| # $start_pos is expected to be set to the start of $arg in $BUFFER
 | |
| # $1 is the index in $arg which starts the quote
 | |
| # $REPLY is returned as the end of quote index in $arg
 | |
| # $reply is returned as an array of region_highlight additions
 | |
| 
 | |
| # Highlight single-quoted strings
 | |
| _zsh_highlight_main_highlighter_highlight_single_quote()
 | |
| {
 | |
|   local arg1=$1 i q=\' style
 | |
|   i=$arg[(ib:arg1+1:)$q]
 | |
|   reply=()
 | |
| 
 | |
|   if [[ $zsyh_user_options[rcquotes] == on ]]; then
 | |
|     while [[ $arg[i+1] == "'" ]]; do
 | |
|       reply+=($(( start_pos + i - 1 )) $(( start_pos + i + 1 )) rc-quote)
 | |
|       (( i++ ))
 | |
|       i=$arg[(ib:i+1:)$q]
 | |
|     done
 | |
|   fi
 | |
| 
 | |
|   if [[ $arg[i] == "'" ]]; then
 | |
|     style=single-quoted-argument
 | |
|   else
 | |
|     # If unclosed, i points past the end
 | |
|     (( i-- ))
 | |
|     style=single-quoted-argument-unclosed
 | |
|   fi
 | |
|   reply=($(( start_pos + arg1 - 1 )) $(( start_pos + i )) $style $reply)
 | |
|   REPLY=$i
 | |
| }
 | |
| 
 | |
| # Highlight special chars inside double-quoted strings
 | |
| _zsh_highlight_main_highlighter_highlight_double_quote()
 | |
| {
 | |
|   local -a breaks match mbegin mend saved_reply
 | |
|   local MATCH; integer last_break=$(( start_pos + $1 - 1 )) MBEGIN MEND
 | |
|   local i j k ret style
 | |
|   reply=()
 | |
| 
 | |
|   for (( i = $1 + 1 ; i <= $#arg ; i += 1 )) ; do
 | |
|     (( j = i + start_pos - 1 ))
 | |
|     (( k = j + 1 ))
 | |
|     case "$arg[$i]" in
 | |
|       ('"') break;;
 | |
|       ('`') saved_reply=($reply)
 | |
|             _zsh_highlight_main_highlighter_highlight_backtick $i
 | |
|             (( i = REPLY ))
 | |
|             reply=($saved_reply $reply)
 | |
|             continue
 | |
|             ;;
 | |
|       ('$') 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
 | |
|             elif [[ $arg[i+1] == '$' ]]; then
 | |
|               # $$ - pid
 | |
|               (( k += 1 )) # highlight both dollar signs
 | |
|               (( i += 1 )) # don't consider the second one as introducing another parameter expansion
 | |
|             elif [[ $arg[i+1] == [-#*@?] ]]; then
 | |
|               # $#, $*, $@, $?, $- - like $$ above
 | |
|               (( k += 1 )) # highlight both dollar signs
 | |
|               (( i += 1 )) # don't consider the second one as introducing another parameter expansion
 | |
|             elif [[ $arg[i+1] == $'\x28' && ${arg:$i} != $'\x28\x28'*$'\x29\x29'* ]]; then
 | |
|               # command substitution that doesn't look like an arithmetic expansion
 | |
|               breaks+=( $last_break $(( start_pos + i - 1 )) )
 | |
|               (( i += 2 ))
 | |
|               saved_reply=($reply)
 | |
|               _zsh_highlight_main_highlighter_highlight_list $(( start_pos + i - 1 )) S $has_end $arg[i,-1]
 | |
|               ret=$?
 | |
|               (( i += REPLY ))
 | |
|               last_break=$(( start_pos + i ))
 | |
|               reply=(
 | |
|                 $saved_reply
 | |
|                 $j $(( start_pos + i )) command-substitution-quoted
 | |
|                 $j $(( j + 2 )) command-substitution-delimiter-quoted
 | |
|                 $reply
 | |
|               )
 | |
|               if (( ret == 0 )); then
 | |
|                 reply+=($(( start_pos + i - 1 )) $(( start_pos + i )) command-substitution-delimiter-quoted)
 | |
|               fi
 | |
|               continue
 | |
|             else
 | |
|               continue
 | |
|             fi
 | |
|             ;;
 | |
|       "\\") style=back-double-quoted-argument
 | |
|             if [[ \\\`\"\$${histchars[1]} == *$arg[$i+1]* ]]; then
 | |
|               (( k += 1 )) # Color following char too.
 | |
|               (( i += 1 )) # Skip parsing the escaped char.
 | |
|             else
 | |
|               continue
 | |
|             fi
 | |
|             ;;
 | |
|       ($histchars[1]) # ! - may be a history expansion
 | |
|             if [[ $arg[i+1] != ('='|$'\x28'|$'\x7b'|[[:blank:]]) ]]; then
 | |
|               style=history-expansion
 | |
|             else
 | |
|               continue
 | |
|             fi
 | |
|             ;;
 | |
|       *) continue ;;
 | |
| 
 | |
|     esac
 | |
|     reply+=($j $k $style)
 | |
|   done
 | |
| 
 | |
|   if [[ $arg[i] == '"' ]]; then
 | |
|     style=double-quoted-argument
 | |
|   else
 | |
|     # If unclosed, i points past the end
 | |
|     (( i-- ))
 | |
|     style=double-quoted-argument-unclosed
 | |
|   fi
 | |
|   (( last_break != start_pos + i )) && breaks+=( $last_break $(( start_pos + i )) )
 | |
|   saved_reply=($reply)
 | |
|   reply=()
 | |
|   for 1 2 in $breaks; do
 | |
|     (( $1 != $2 )) && reply+=($1 $2 $style)
 | |
|   done
 | |
|   reply+=($saved_reply)
 | |
|   REPLY=$i
 | |
| }
 | |
| 
 | |
| # Highlight special chars inside dollar-quoted strings
 | |
| _zsh_highlight_main_highlighter_highlight_dollar_quote()
 | |
| {
 | |
|   local -a match mbegin mend
 | |
|   local MATCH; integer MBEGIN MEND
 | |
|   local i j k style
 | |
|   local AA
 | |
|   integer c
 | |
|   reply=()
 | |
| 
 | |
|   for (( i = $1 + 2 ; i <= $#arg ; i += 1 )) ; do
 | |
|     (( j = i + start_pos - 1 ))
 | |
|     (( k = j + 1 ))
 | |
|     case "$arg[$i]" in
 | |
|       "'") break;;
 | |
|       "\\") style=back-dollar-quoted-argument
 | |
|             for (( c = i + 1 ; c <= $#arg ; c += 1 )); do
 | |
|               [[ "$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
 | |
|     reply+=($j $k $style)
 | |
|   done
 | |
| 
 | |
|   if [[ $arg[i] == "'" ]]; then
 | |
|     style=dollar-quoted-argument
 | |
|   else
 | |
|     # If unclosed, i points past the end
 | |
|     (( i-- ))
 | |
|     style=dollar-quoted-argument-unclosed
 | |
|   fi
 | |
|   reply=($(( start_pos + $1 - 1 )) $(( start_pos + i )) $style $reply)
 | |
|   REPLY=$i
 | |
| }
 | |
| 
 | |
| # Highlight backtick substitutions
 | |
| _zsh_highlight_main_highlighter_highlight_backtick()
 | |
| {
 | |
|   # buf is the contents of the backticks with a layer of backslashes removed.
 | |
|   # last is the index of arg for the start of the string to be copied into buf.
 | |
|   #     It is either one past the beginning backtick or one past the last backslash.
 | |
|   # offset is a count of consumed \ (the delta between buf and arg).
 | |
|   # offsets is an array indexed by buf offset of when the delta between buf and arg changes.
 | |
|   #     It is sparse, so search backwards to the last value
 | |
|   local buf highlight style=back-quoted-argument-unclosed style_end
 | |
|   local -i arg1=$1 end_ i=$1 last offset=0 start subshell_has_end=0
 | |
|   local -a highlight_zone highlights offsets
 | |
|   reply=()
 | |
| 
 | |
|   last=$(( arg1 + 1 ))
 | |
|   # Remove one layer of backslashes and find the end
 | |
|   while i=$arg[(ib:i+1:)[\\\\\`]]; do # find the next \ or `
 | |
|     if (( i > $#arg )); then
 | |
|       buf=$buf$arg[last,i]
 | |
|       offsets[i-arg1-offset]='' # So we never index past the end
 | |
|       (( i-- ))
 | |
|       subshell_has_end=$(( has_end && (start_pos + i == len) ))
 | |
|       break
 | |
|     fi
 | |
| 
 | |
|     if [[ $arg[i] == '\' ]]; then
 | |
|       (( i++ ))
 | |
|       # POSIX XCU 2.6.3
 | |
|       if [[ $arg[i] == ('$'|'`'|'\') ]]; then
 | |
|         buf=$buf$arg[last,i-2]
 | |
|         (( offset++ ))
 | |
|         # offsets is relative to buf, so adjust by -arg1
 | |
|         offsets[i-arg1-offset]=$offset
 | |
|       else
 | |
|         buf=$buf$arg[last,i-1]
 | |
|       fi
 | |
|     else # it's an unquoted ` and this is the end
 | |
|       style=back-quoted-argument
 | |
|       style_end=back-quoted-argument-delimiter
 | |
|       buf=$buf$arg[last,i-1]
 | |
|       offsets[i-arg1-offset]='' # So we never index past the end
 | |
|       break
 | |
|     fi
 | |
|     last=$i
 | |
|   done
 | |
| 
 | |
|   _zsh_highlight_main_highlighter_highlight_list 0 '' $subshell_has_end $buf
 | |
| 
 | |
|   # Munge the reply to account for removed backslashes
 | |
|   for start end_ highlight in $reply; do
 | |
|     start=$(( start_pos + arg1 + start + offsets[(Rb:start:)?*] ))
 | |
|     end_=$(( start_pos + arg1 + end_ + offsets[(Rb:end_:)?*] ))
 | |
|     highlights+=($start $end_ $highlight)
 | |
|     if [[ $highlight == back-quoted-argument-unclosed && $style == back-quoted-argument ]]; then
 | |
|       # An inner backtick command substitution is unclosed, but this level is closed
 | |
|       style_end=unknown-token
 | |
|     fi
 | |
|   done
 | |
| 
 | |
|   reply=(
 | |
|     $(( start_pos + arg1 - 1 )) $(( start_pos + i )) $style
 | |
|     $(( start_pos + arg1 - 1 )) $(( start_pos + arg1 )) back-quoted-argument-delimiter
 | |
|     $highlights
 | |
|   )
 | |
|   if (( $#style_end )); then
 | |
|     reply+=($(( start_pos + i - 1)) $(( start_pos + i )) $style_end)
 | |
|   fi
 | |
|   REPLY=$i
 | |
| }
 | |
| 
 | |
| # 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() {
 | |
|   # Unset the WARN_NESTED_VAR option, taking care not to error if the option
 | |
|   # doesn't exist (zsh older than zsh-5.3.1-test-2).
 | |
|   setopt localoptions
 | |
|   if eval '[[ -o warnnestedvar ]]' 2>/dev/null; then
 | |
|     unsetopt warnnestedvar
 | |
|   fi
 | |
| 
 | |
|   _zsh_highlight_main__command_type_cache=()
 | |
| }
 | |
| 
 | |
| autoload -Uz 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
 | |
| typeset -ga ZSH_HIGHLIGHT_DIRS_BLACKLIST
 |