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["Paul J. Lucas" <1023168@xxxxxxxxxxxxxxxxxx>]

** Description changed:

  Regular expressions like:
  
-   [\s-A]
-   [A-\w]
+   [\s-A]
  
  i.e., those that involve non-single-character-escapes inside character
  ranges are illegal according to "XML Schema Part 2: Datatypes Second
  Edition: F Regular Expressions." ICU either does not consider this an
  error or does not catch it. The Zorba code that translates XQuery
  regular expressions into ICU regular expressions also doesn't check for
  it -- it's non-trivial to do.

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https://bugs.launchpad.net/bugs/1023168

Title:
  Non-single-char-escapes in regex character ranges not caught

Status in Zorba - The XQuery Processor:
  Triaged

Bug description:
  Regular expressions like:

    [\s-A]

  i.e., those that involve non-single-character-escapes inside character
  ranges are illegal according to "XML Schema Part 2: Datatypes Second
  Edition: F Regular Expressions." ICU either does not consider this an
  error or does not catch it. The Zorba code that translates XQuery
  regular expressions into ICU regular expressions also doesn't check
  for it -- it's non-trivial to do.

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