apparently invalid regex in queries

[Paul J. Lucas]

The FOTS test re00056 is:

    (every $s in tokenize('', ',')
      satisfies matches($s, '^(?:[^a-d-b-c])$'))
    and
    (every $s in tokenize('a-b,c-c,ab,cc', ',')
      satisfies not(matches($s, '^(?:[^a-d-b-c])$')))

The regular expression [^a-d-b-c] seems wrong. The "a-d" means "'a' through 'd', i.e., abcd, and the "b-c" means "'b' through 'c', i.e., "bc". However, the '-' between the 'd' and 'b' makes no sense. It can't mean "'d' through 'b'" since 'b' is less than 'd', nor can it mean "a-d without 'b' and without 'c'," i.e., range subtraction per <http://www.w3.org/TR/xmlschema-2/#nt-charClassSub>.

Similarly, the FOTS test re00086 is:

    (every $s in tokenize(',a-1x-7,c-4z-9,a-1z-8a-1z-9,a1z-9,a-1z8,a-1,z-9', ',')
      satisfies matches($s, '^(?:[a-c-1-4x-z-7-9]*)$'))
    and
    (every $s in tokenize('', ',')
      satisfies not(matches($s, '^(?:[a-c-1-4x-z-7-9]*)$')))

The regular expression [a-c-1-4x-z-7-9] seems wrong for the same reason. This may be a limitation of ICU.

[Sorin Marian Nasoi (sorin.marian.nasoi)]

Added W3C bug:
https://www.w3.org/Bugs/Public/show_bug.cgi?id=21425

Marked this issue as "Invalid".

[Sorin Marian Nasoi (sorin.marian.nasoi)]

Please see comment from Mike Kay:
https://www.w3.org/Bugs/Public/show_bug.cgi?id=21425#c1

Marking the bug as "New"

[Paul J. Lucas (paul-lucas)]

These tests probably fail for the same reason given in <https://bugs.launchpad.net/zorba/+bug/1131990/comments/1>.