stonewareslord/zsh-syntax-highlighting
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'main': Fix the last commit's issue concerning parameter expansion at command word.

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Daniel Shahaf 2016-07-28 22:41:23 +00:00 committed by Daniel Shahaf
parent d21d3b31da
commit 40dcbfbcf6
3 changed files with 24 additions and 19 deletions
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37
highlighters/main/main-highlighter.zsh
View File

@ -459,6 +459,26 @@ _zsh_highlight_highlighter_main_paint()
}
fi
# Expand parameters.
#
# ### For now, expand just '$foo', like that, without braces or anything.
() {
# That's not entirely correct --- if the parameter's value happens to be a reserved
# word, the parameter expansion will be highlighted as a reserved word --- but that
# incorrectness is outweighed by the usability improvement of permitting the use of
# parameters that refer to commands, functions, and builtins.
local -a match mbegin mend
local MATCH; integer MBEGIN MEND
if [[ $res == none ]] && (( ${+parameters} )) &&
[[ ${arg[1]} == \$ ]] && [[ ${arg:1} =~ ^([A-Za-z_][A-Za-z0-9_]*|[0-9]+)$ ]] &&
(( ${+parameters[${MATCH}]} ))
then
arg=${(P)MATCH}
_zsh_highlight_main__type "$arg"
res=$REPLY
fi
}
# Special-case the first word after 'sudo'.
if (( ! in_redirection )); then
if [[ $this_word == *':sudo_opt:'* ]] && [[ $arg != -* ]]; then
@ -499,23 +519,6 @@ _zsh_highlight_highlighter_main_paint()
next_word+=':sudo_opt:'
next_word+=':start:'
else
() {
# Special-case: command word is '$foo', like that, without braces or anything.
#
# That's not entirely correct --- if the parameter's value happens to be a reserved
# word, the parameter expansion will be highlighted as a reserved word --- but that
# incorrectness is outweighed by the usability improvement of permitting the use of
# parameters that refer to commands, functions, and builtins.
local -a match mbegin mend
local MATCH; integer MBEGIN MEND
if [[ $res == none ]] && (( ${+parameters} )) &&
[[ ${arg[1]} == \$ ]] && [[ ${arg:1} =~ ^([A-Za-z_][A-Za-z0-9_]*|[0-9]+)$ ]] &&
(( ${+parameters[${MATCH}]} ))
then
_zsh_highlight_main__type ${(P)MATCH}
res=$REPLY
fi
}
case $res in
reserved) # reserved word
style=reserved-word

2
highlighters/main/test-data/commmand-parameter.zsh
View File

@ -34,5 +34,5 @@ BUFFER='$x "argument"; $y'
expected_region_highlight=(
"1 2 command" # $x
"4 13 double-quoted-argument" # "argument"
"16 17 precommand 'parameter expansion precedes precommand recognition'" # $y (sudo)
"16 17 precommand" # $y (sudo)
)

4
highlighters/main/test-data/path-dollared-word3.zsh
View File

@ -29,9 +29,11 @@
# «/usr» at this point would be highlighted as path_prefix; so should
# a parameter that expands to an equivalent string be highlighted.
#
# More complicated parameter substitutions aren't eval'd; issue #328.
BUFFER='$PWD; ${PWD}'
expected_region_highlight=(
"1 4 unknown-token" # $PWD - not eval'd; issue #328
"1 4 path" # $PWD
"7 12 unknown-token" # ${PWD}
)