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["Paul J. Lucas" <974474@xxxxxxxxxxxxxxxxxx>]

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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