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XWiki Rendering

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The XWiki syntax parser shouldn't use String#replaceAll

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Michael Hamann created this issue on 04/Jun/25 17:41

Summary:	The XWiki syntax parser shouldn't use String#replaceAll
Issue Type:	Bug
Affects Versions:	16.10.8
Assignee:	Unassigned
Components:	Syntax - xwiki/2.0, Syntax - xwiki/2.1
Created:	04/Jun/25 17:41
Labels:	performance
Priority:	Major
Reporter:	Michael Hamann
Description:	The XWiki 2.0 and 2.1 syntax parser currently uses String#replaceAll to remove "~" from parsed words an spaces. While the performance impact is minor, it is still inefficient as this compiles a regular expression. See also https://medium.com/javarevisited/micro-optimizations-in-java-string-replaceall-c6d0edf2ef6

3 updates

Changes by Michael Hamann on 04/Jun/25 17:41

Version:	16.10.8
Version:	16.10.0
Description:	The XWiki 2.0 and 2.1 syntax parser currently [uses String#replaceAll to remove "~" from parsed words an spaces\|https://github.com/xwiki/xwiki-rendering/blob/e46c703435fa0f179560201a5029029a5a34deed/xwiki-rendering-wikimodel/src/main/javacc/XWiki20Scanner.jj#L989]. While the performance impact is minor, it is still inefficient as this compiles a regular expression. See also https://medium.com/javarevisited/micro-optimizations-in-java-string-replaceall-c6d0edf2ef6 and https://rules.sonarsource.com/java/tag/regex/RSPEC-5361/

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