On 27.8.2012 17:52, Yves Savourel wrote: >> Why you can't use something like >> allowedCharacters="[ --[<>:"\\/|\?*]]" > > I have only one last reserve: currently the syntax we define does not > allow for nested character class subtraction (trying to keep thing > interoperable) how would you specify [\u0000-\u001F<>:"\\/|\?*] > without such construct? If you want to avoid constructs like [A-[B]] then you can in this case split range  - into several smaller ranges which will be ending before and starting after disallowed characters. But I don't think we should disallow [A-[B]] as this syntax is available in XML Schema nad XPath 2.0/XQuery 1.0 -- there are plenty of existing implementations around. Moreover other languages offer similar syntax. For example in Java you can map this to [A&&[^B]] if I'm not mistaken. > Overall, I'd much rather go with allowedCharacter with regex than > forbiddenCharacters without regex. +1 Jirka -- ------------------------------------------------------------------ Jirka Kosek e-mail: jirka@kosek.cz http://xmlguru.cz ------------------------------------------------------------------ Professional XML consulting and training services DocBook customization, custom XSLT/XSL-FO document processing ------------------------------------------------------------------ OASIS DocBook TC member, W3C Invited Expert, ISO JTC1/SC34 member ------------------------------------------------------------------Received on Monday, 27 August 2012 19:41:26 UTC
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