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Bug #3380
closed![Author: Michael Kay](https://www.gravatar.com/avatar/db6526d63053f09b62e52c2da8b2230a?rating=PG&size=50&default=https%3A%2F%2Fassets.plan.io%2Fimages%2Fdefault_avatar.png)
![Assignee: Michael Kay](https://www.gravatar.com/avatar/db6526d63053f09b62e52c2da8b2230a?rating=PG&size=22&default=https%3A%2F%2Fassets.plan.io%2Fimages%2Fdefault_avatar.png)
xsl:analyze-string with a regex that matches a zero-length string
Start date:
2017-08-10
Due date:
% Done:
100%
Estimated time:
Applies to JS Branch:
0.9, 1.0, Trunk
Fix Committed on JS Branch:
1.0, Trunk
Fixed in JS Release:
SEF Generated with:
Platforms:
Company:
-
Contact person:
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Additional contact persons:
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Description
XSLT 3.0 allows the regex in xsl:analyze-string to be one that matches a zero length string, but Saxon-JS is not handling this correctly. It fails with Error SXJS0004 and the message "looping???". XSLT 3.0 test cases analyze-string-090b and -091b fail.
Fixed on the 2.0 branch in Expr.analyze by adding the code
if (result[0].length === 0) {
pattern.lastIndex++;
}
I've left the test for looping in the code, just in case.
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