Fix code scanning alert no. 328: Inefficient regular expression #2268
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Fixes https://github.com/IgniteUI/ignite-ui/security/code-scanning/328
To fix the problem, we need to modify the regular expression to remove the ambiguity that causes exponential backtracking. Specifically, we should replace the ambiguous character class
[\w\$\-]+
with a more precise pattern that avoids ambiguity.The best way to fix this without changing existing functionality is to use a non-ambiguous character class. We can replace
[\w\$\-]+
with(?:[\w\$-]+)
to ensure that the repetition is non-ambiguous.Suggested fixes powered by Copilot Autofix. Review carefully before merging.