The head of 2.1 contains a new WildcardMatcherHelper [1] to replace the rather obscure WildcardHelper [2] implementation. WMH is now used for matching wildcard patterns in map:match.
Although the code is a lot clearer than WH, it is still very complex logic. A number of bugs in the original WMH code have been fixed in the meantime, but a few more seem to be lurking.. I recently fixed two bugs but now I am facing yet another one. This time it is a false positive where "*" matches what should be matched only by "**". Rather than submerging myself into the WMH code for fixing it I am inclined to rewrite the stuff one more time. Along the lines already discussed in the thread following [1] I would use the regexp library to do the heavy lifting. Since map:match is the most frequently executed pipeline instruction, speed is an issue. That can be mastered by a) caching the compiled regexps and b) handling the simple pattern with a single * or ** as special cases without using regexps. At the same time regexps would also remove the known limitation that "**/*/*" cannot match because "**" is over-greedy in the current WMH implementation. WDYT? Cheers, Alfred. [1] http://marc.theaimsgroup.com/?l=xml-cocoon-dev&m=115096562921641&w=2 [2] http://marc.theaimsgroup.com/?l=xml-cocoon-dev&m=114915395328845&w=2 This message is for the named person's use only. It may contain confidential, proprietary or legally privileged information. No confidentiality or privilege is waived or lost by any mistransmission. If you receive this message in error, please notify the sender urgently and then immediately delete the message and any copies of it from your system. Please also immediately destroy any hardcopies of the message. You must not, directly or indirectly, use, disclose, distribute, print, or copy any part of this message if you are not the intended recipient. The sender's company reserves the right to monitor all e-mail communications through their networks. Any views expressed in this message are those of the individual sender, except where the message states otherwise and the sender is authorised to state them to be the views of the sender's company.
