https://bugs.kde.org/show_bug.cgi?id=473471
Bug ID: 473471
Summary: Syntax highlighting broke after the `${!}` expansion
for Bash scripts
Classification: Frameworks and Libraries
Product: frameworks-syntax-highlighting
Version: 5.92.0
Platform: Ubuntu
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: syntax
Assignee: kwrite-bugs-n...@kde.org
Reporter: buo.ren....@gmail.com
CC: walter.von.entfer...@posteo.net
Target Milestone: ---
Created attachment 161018
--> https://bugs.kde.org/attachment.cgi?id=161018&action=edit
Example script for bug reroduction
SUMMARY
The exclamation mark (!) is a special parameter that will "expands to the
process ID of the job most recently placed into the background, whether
executed as an asynchronous command or using the bg builtin" according to the
Bash manual, however currently when encountering the `"${!}"` (opening
double-quote, dollar sign, opening curly braces, exclamation mark, closing
curly braces, closing double-quote) character sequence all text are highlight
as red until the next occurrence of `"${!}"`.
Expansion without the curly braces pair,(`$!`), however, does not reproduce
such problem.
STEPS TO REPRODUCE
1. Download attached reproducing script
2. Open the script with Kate, etc.
3. Profit.
OBSERVED RESULT
Text between two `"${!}"`s is highlighted red.
EXPECTED RESULT
Text between two `"${!}"`s shouldn't be highlighted red.
SOFTWARE/OS VERSIONS
Linux: Ubuntu 22.04LTS
KDE Frameworks Version: 5.92.0 (also reproduced in 5.105.0 snap)
Qt Version: 5.15.3 (also reproduced in 5.105.9 snap)
ADDITIONAL INFORMATION
Also reproduced with the definition file of commit ca42b1ed.
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