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https://github.com/zsh-users/zsh-syntax-highlighting
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'main': Don't highlight arithmetic expansions as command substitutions.
This is not perfect: we don't try to detect cases such as «$((ls); (ls))», which look like arithmetic expansions but are in fact command substitutions. Fixes part of #607. Introduces #704.
This commit is contained in:
Daniel Shahaf
parent
2e65bb6d7d
commit
d237a60c9b
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@ -38,6 +38,13 @@
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- Fix `echo >&2` highlighting the `2` as a filename if a file by that name happened to exist
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[#694]
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- Fix `: $((42))` being highlighted as a subshell.
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[part of #607]
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- Regress highlighting of `: $((ls); (ls))`: is a subshell, but will now be
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incorrectly highlighted as an arithmetic expansion.
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[#704]
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# Changes in version 0.7.1
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- Remove out-of-date information from the 0.7.0 changelog.
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@ -1222,7 +1222,8 @@ _zsh_highlight_main_highlighter_highlight_argument()
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(( i = REPLY ))
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highlights+=($reply)
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continue
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elif [[ $arg[i+1] == $'\x28' ]]; then
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elif [[ $arg[i+1] == $'\x28' && ${arg:$i} != $'\x28\x28'*$'\x29\x29'* ]]; then
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# command substitution that doesn't look like an arithmetic expansion
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start=$i
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(( i += 2 ))
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_zsh_highlight_main_highlighter_highlight_list $(( start_pos + i - 1 )) S $has_end $arg[i,-1]
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@ -1237,6 +1238,10 @@ _zsh_highlight_main_highlighter_highlight_argument()
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highlights+=($(( start_pos + i - 1)) $(( start_pos + i )) command-substitution-delimiter-unquoted)
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fi
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continue
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else
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# TODO: if it's an arithmetic expansion, skip past it, to prevent
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# multiplications from being highlighted as globbing (issue #607,
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# test-data/arith1.zsh)
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fi
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while [[ $arg[i+1] == [\^=~#+] ]]; do
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(( i += 1 ))
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@ -1359,7 +1364,8 @@ _zsh_highlight_main_highlighter_highlight_double_quote()
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# $#, $*, $@, $?, $- - like $$ above
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(( k += 1 )) # highlight both dollar signs
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(( i += 1 )) # don't consider the second one as introducing another parameter expansion
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elif [[ $arg[i+1] == $'\x28' ]]; then
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elif [[ $arg[i+1] == $'\x28' && ${arg:$i} != $'\x28\x28'*$'\x29\x29'* ]]; then
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# command substitution that doesn't look like an arithmetic expansion
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breaks+=( $last_break $(( start_pos + i - 1 )) )
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(( i += 2 ))
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saved_reply=($reply)
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@ -33,14 +33,14 @@ BUFFER=$': $((ls); (ls))'
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expected_region_highlight=(
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'1 1 builtin' # :
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'3 15 default' # $((ls); (ls))
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'3 15 command-substitution-unquoted' # $((ls); (ls))
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'3 4 command-substitution-delimiter-unquoted' # $(
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'5 5 reserved-word' # (
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'6 7 command' # ls
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'8 8 reserved-word' # )
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'9 9 commandseparator' # ;
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'11 11 reserved-word' # (
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'12 13 command' # ls
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'14 14 reserved-word' # )
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'15 15 command-substitution-delimiter-unquoted' # )
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'3 15 command-substitution-unquoted "issue #704"' # $((ls); (ls))
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'3 4 command-substitution-delimiter-unquoted "issue #704"' # $(
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'5 5 reserved-word "issue #704"' # (
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'6 7 command "issue #704"' # ls
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'8 8 reserved-word "issue #704"' # )
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'9 9 commandseparator "issue #704"' # ;
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'11 11 reserved-word "issue #704"' # (
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'12 13 command "issue #704"' # ls
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'14 14 reserved-word "issue #704"' # )
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'15 15 command-substitution-delimiter-unquoted "issue #704"' # )
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)
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37
highlighters/main/test-data/arith1.zsh
Normal file
37
highlighters/main/test-data/arith1.zsh
Normal file
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@ -0,0 +1,37 @@
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#!/usr/bin/env zsh
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# -------------------------------------------------------------------------------------------------
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# Copyright (c) 2020 zsh-syntax-highlighting contributors
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without modification, are permitted
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# provided that the following conditions are met:
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#
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# * Redistributions of source code must retain the above copyright notice, this list of conditions
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# and the following disclaimer.
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# * Redistributions in binary form must reproduce the above copyright notice, this list of
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# conditions and the following disclaimer in the documentation and/or other materials provided
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# with the distribution.
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# * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
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# may be used to endorse or promote products derived from this software without specific prior
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# written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
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# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
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# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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# -------------------------------------------------------------------------------------------------
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# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
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# vim: ft=zsh sw=2 ts=2 et
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# -------------------------------------------------------------------------------------------------
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BUFFER=$': $(( 6 * 9 ))'
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expected_region_highlight=(
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'1 1 builtin' # :
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'3 14 default' # $(( 6 * 9 ))
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)
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expected_mismatch="currently the actual highlighting has one superfluous group that highlights the asterisk is highlighted as 'globbing'"
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37
highlighters/main/test-data/arith2.zsh
Normal file
37
highlighters/main/test-data/arith2.zsh
Normal file
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@ -0,0 +1,37 @@
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#!/usr/bin/env zsh
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# -------------------------------------------------------------------------------------------------
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# Copyright (c) 2020 zsh-syntax-highlighting contributors
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without modification, are permitted
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# provided that the following conditions are met:
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#
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# * Redistributions of source code must retain the above copyright notice, this list of conditions
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# and the following disclaimer.
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# * Redistributions in binary form must reproduce the above copyright notice, this list of
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# conditions and the following disclaimer in the documentation and/or other materials provided
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# with the distribution.
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# * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
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# may be used to endorse or promote products derived from this software without specific prior
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# written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
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# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
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# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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# -------------------------------------------------------------------------------------------------
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# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
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# vim: ft=zsh sw=2 ts=2 et
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# -------------------------------------------------------------------------------------------------
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BUFFER=$': "$(( 6 * 9 ))"'
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expected_region_highlight=(
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'1 1 builtin' # :
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'3 16 default' # "$(( 6 * 9 ))"
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'3 16 double-quoted-argument' # "$(( 6 * 9 ))"
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)
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