Subject: [xsl] Return the string that matches earliest -- Got a slick XPath expression that solves this? From: "Costello, Roger L." <costello@xxxxxxxxx> Date: Sun, 24 Nov 2013 17:32:02 +0000 |
Hi Folks, I have a pattern matching problem. It is explained easiest with an example. Example: Here is a string: aabQc Let's call it the sentential string. Do any of the following strings occur in the sentential string: bQc cQ Let's call those strings the LHS strings. Clearly both LHS strings are contained in the sentential string. But bQc occurs earlier, so that is the correct answer. Problem: Given a sentential string and a sequence of LHS strings, return the LHS string that occurs earliest in the sentential string. If multiple LHS strings occur earliest then return them all. Let $sentential be the sentential string and $LHS be a sequence of one or more LHS strings. I'll bet there's a slick XPath expression that solves this problem. Would you provide an XPath expression that solves this pattern matching problem please? /Roger
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