** Summary changed:
- regex "range subtraction" not supported
+ regex "range subtraction" not supported for ICU
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regex "range subtraction" not supported for ICU
Status in Zorba - The XQuery Processor:
XQuery regular expressions are based on those specified by "XML Schema
Part 2: Datatypes Second Edition," Appendix F, "Regular Expressions."
Said regexps support "Character Class Subtraction" as specified in
section F.1, " charClassSub."
Zorba currently used ICU for Unicode regular expressions.
Unfortunately, ICU doesn't support "Character Class Subtraction";
hence the following W3C tests fail:
This bug is more specific than bug 2988205 that will be closed and
replaced by this bug and a few other more specific bugs.
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