The XML Schema Part 2 specification includes the note:
Note: [Unicode Database] is subject to future revision. For example,
the mapping from code points to character properties might be updated.
All ·minimally conforming· processors ·must· support the character
properties defined in the version of [Unicode Database] that is current
at the time this specification became a W3C Recommendation. However,
implementors are encouraged to support the character properties defined
in any future version.
Since the Unicode Database can grow over time, there's no easy way to
know what is and isn't legal.
** Changed in: zorba
Status: Confirmed => Won't Fix
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https://bugs.launchpad.net/bugs/974474
Title:
invalid regex Block Escapes not reported for ICU
Status in Zorba - The XQuery Processor:
Won't Fix
Bug description:
When using ICU, a query such as:
fn:matches( "a", "\p{IsBasic-Latin}" )
returns "true" even though it should raise error err:FORX0002 since
IsBasic-Latin is not a valid Block Escape according to:
http://www.w3.org/TR/xmlschema-2/#charcter-classes
in [36]. (It should be IsBasicLatin -- no '-'.)
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