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Re: regular expression question

• To: paul.hermans@a...
• Subject: Re: regular expression question
• From: David Carlisle <davidc@n...>
• Date: Fri, 26 Aug 2005 10:38:20 +0100
• Cc: xml-dev@l...
• In-reply-to: <E7A0B91DC0CEE742BBD436ABF11D676C5ABBDF@d...>(paul.hermans@a...)
• References: <E7A0B91DC0CEE742BBD436ABF11D676C5ABBDF@d...>

> The rationale here could be that since no other character is following
> the hyphen is not used for indication ranges in character classes, but
> as itself.

This is the correct interpretation I believe.


http://www.w3.org/TR/xmlschema-2/#regexs

says

  A single XML character is a ·character range· that identifies the set
  of characters containing only itself. All XML characters are valid
  character ranges, except as follows:
  ...
  The - character is a valid character range only at the beginning or
  end of a ·positive character group·. 



which means that you can (should be able to) use - to mean itself as the
last character in a [] group.

David

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• References:
  • regular expression question
    • From: "Paul Hermans" <paul.hermans@a...>

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