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'main': Highlight parameter expansion history modifiers.

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Fixes #485.
This commit is contained in:
Daniel Shahaf 2018-01-20 15:55:00 +00:00
parent e038a59a83
commit fccfc69b82
2 changed files with 50 additions and 2 deletions
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6
highlighters/main/main-highlighter.zsh
View file

@ -1283,10 +1283,12 @@ _zsh_highlight_main_highlighter_highlight_double_quote()
'$' ) style=dollar-double-quoted-argument
# Look for an alphanumeric parameter name.
local alphanumeric_parameter_name='[A-Za-z_][A-Za-z0-9_]*|[0-9]+'
if [[ ${arg:$i} =~ ^(${alphanumeric_parameter_name}) ]] ; then
# :gs,:s,:F,:W take an argument between delimiters; we don't currently highlight delimiters.
local history_modifiers=':[aAcehlpPqQ&tuxfw]|:gs.|:s.|:F.|:W.'
if [[ ${arg:$i} =~ ^(${alphanumeric_parameter_name})(${history_modifiers})* ]] ; then
(( k += $#MATCH )) # highlight the parameter name
(( i += $#MATCH )) # skip past it
elif [[ ${arg:$i} =~ ^[{](${alphanumeric_parameter_name})[}] ]] ; then
elif [[ ${arg:$i} =~ ^[{](${alphanumeric_parameter_name})(${history_modifiers})*[}] ]] ; then
(( k += $#MATCH )) # highlight the parameter name and braces
(( i += $#MATCH )) # skip past it
elif [[ $arg[i+1] == '$' ]]; then

46
highlighters/main/test-data/double-quoted5-history-modifiers.zsh Normal file
View file

@ -0,0 +1,46 @@
#!/usr/bin/env zsh
# -------------------------------------------------------------------------------------------------
# Copyright (c) 2018 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
# -------------------------------------------------------------------------------------------------
BUFFER=$': "$foo: ${foo}: $foo:X ${foo:X} $foo:h ${foo:h} $foo:h:h ${foo:h:h} $foo:hey ${foo}:h"'
expected_region_highlight=(
'1 1 builtin' # :
'3 87 default' # "$foo: ${foo}: $foo:X ${foo:X} $foo:h ${foo:h} $foo:h:h ${foo:h:h} $foo:hey ${foo}:h"
'3 87 double-quoted-argument' # "$foo: ${foo}: $foo:X ${foo:X} $foo:h ${foo:h} $foo:h:h ${foo:h:h} $foo:hey ${foo}:h"
'4 7 dollar-double-quoted-argument' # $foo
'10 15 dollar-double-quoted-argument' # ${foo}
'18 21 dollar-double-quoted-argument' # $foo
'34 39 dollar-double-quoted-argument' # $foo:h
'41 48 dollar-double-quoted-argument' # ${foo:h}
'50 57 dollar-double-quoted-argument' # $foo:h:h
'59 68 dollar-double-quoted-argument' # ${foo:h:h}
'70 75 dollar-double-quoted-argument' # $foo:h - without the following "ey"
'79 84 dollar-double-quoted-argument' # ${foo}
)