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zsh-syntax-highlighting
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main: Avoid $end_pos when calculating $arg size 

Fixes second issue filed under #617
https://github.com/zsh-users/zsh-syntax-highlighting/issues/617#issuecomment-551253422

In the case of a command substitution in an alias, $arg[i,end_pos] would
not pass to the end of $arg and i <= start_pos - end_pos would not
iterate over all of $arg. Use $arg[i,-1] and $#arg respectively to avoid
issues in aliases.
This commit is contained in:
Matthew Martin 2019-11-07 19:50:17 -06:00
parent be3882aeb0
commit 139ea2b189
1 changed files with 11 additions and 11 deletions
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22
highlighters/main/main-highlighter.zsh
View File

@ -807,7 +807,7 @@ _zsh_highlight_main_highlighter_highlight_list()
# Discard :start_of_pipeline:, if present, as '!' is not valid
# after assignments.
next_word+=':start:'
if (( start_pos + i <= end_pos )); then
if (( i <= $#arg )); then
() {
local highlight_glob=false
[[ $zsyh_user_options[globassign] == on ]] && highlight_glob=true
@ -1030,7 +1030,7 @@ _zsh_highlight_main_highlighter_highlight_argument()
'=')
if [[ $arg[i+1] == $'\x28' ]]; then
(( i += 2 ))
_zsh_highlight_main_highlighter_highlight_list $(( start_pos + i - 1 )) S $has_end $arg[i,end_pos]
_zsh_highlight_main_highlighter_highlight_list $(( start_pos + i - 1 )) S $has_end $arg[i,-1]
ret=$?
(( i += REPLY ))
highlights+=(
@ -1044,7 +1044,7 @@ _zsh_highlight_main_highlighter_highlight_argument()
fi
esac
for (( ; i <= end_pos - start_pos ; i += 1 )); do
for (( ; i <= $#arg ; i += 1 )); do
case "$arg[$i]" in
"\\") (( i += 1 )); continue;;
"'")
@ -1074,7 +1074,7 @@ _zsh_highlight_main_highlighter_highlight_argument()
elif [[ $arg[i+1] == $'\x28' ]]; then
start=$i
(( i += 2 ))
_zsh_highlight_main_highlighter_highlight_list $(( start_pos + i - 1 )) S $has_end $arg[i,end_pos]
_zsh_highlight_main_highlighter_highlight_list $(( start_pos + i - 1 )) S $has_end $arg[i,-1]
ret=$?
(( i += REPLY ))
highlights+=(
@ -1097,7 +1097,7 @@ _zsh_highlight_main_highlighter_highlight_argument()
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,end_pos]
_zsh_highlight_main_highlighter_highlight_list $(( start_pos + i - 1 )) S $has_end $arg[i,-1]
ret=$?
(( i += REPLY ))
highlights+=(
@ -1123,7 +1123,7 @@ _zsh_highlight_main_highlighter_highlight_argument()
esac
done
if (( path_eligible )) && _zsh_highlight_main_highlighter_check_path $arg[$1,end_pos]; then
if (( path_eligible )) && _zsh_highlight_main_highlighter_check_path $arg[$1,-1]; then
base_style=$REPLY
_zsh_highlight_main_highlighter_highlight_path_separators $base_style
highlights+=($reply)
@ -1175,7 +1175,7 @@ _zsh_highlight_main_highlighter_highlight_double_quote()
local i j k ret style
reply=()
for (( i = $1 + 1 ; i <= end_pos - start_pos ; i += 1 )) ; do
for (( i = $1 + 1 ; i <= $#arg ; i += 1 )) ; do
(( j = i + start_pos - 1 ))
(( k = j + 1 ))
case "$arg[$i]" in
@ -1206,7 +1206,7 @@ _zsh_highlight_main_highlighter_highlight_double_quote()
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,end_pos]
_zsh_highlight_main_highlighter_highlight_list $(( start_pos + i - 1 )) S $has_end $arg[i,-1]
ret=$?
(( i += REPLY ))
last_break=$(( start_pos + i ))
@ -1272,13 +1272,13 @@ _zsh_highlight_main_highlighter_highlight_dollar_quote()
integer c
reply=()
for (( i = $1 + 2 ; i <= end_pos - start_pos ; i += 1 )) ; do
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 <= end_pos - start_pos ; c += 1 )); do
for (( c = i + 1 ; c <= $#arg ; c += 1 )); do
[[ "$arg[$c]" != ([0-9xXuUa-fA-F]) ]] && break
done
AA=$arg[$i+1,$c-1]
@ -1333,7 +1333,7 @@ _zsh_highlight_main_highlighter_highlight_backtick()
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 > end_pos - start_pos )); then
if (( i > $#arg )); then
buf=$buf$arg[last,i]
offsets[i-arg1-offset]='' # So we never index past the end
(( i-- ))