Subject: Re: [xsl] Find/replace algorithm From: "Michael Kay mike@xxxxxxxxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx> Date: Wed, 24 Mar 2021 23:47:49 -0000 |
My instinct would be (a) build a map containing the replacements (b) for each text node, tokenize the content, then scan the tokens looking each one up in the map. The big advantage of this approach is that the cost is constant regardless how many substitutions there are, whereas most other approaches have a cost that increases linearly with the number of substitutions. Michael Kay Saxonica > On 24 Mar 2021, at 20:28, rick@xxxxxxxxxxxxxx <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx> wrote: > > Hello All, > > I have a fairly large XML file similar to this: > > <?xml version="1.0" encoding="UTF-8"?> > <products> > <product>ACME Wid Assbly</product> > <product>Ford Eng Rebuild Kit</product> > </products> > > I want to do an identity transform except that I want to do some find and replace on some of the words. For example > > Wid = Widget > Assbly = Assembly > Eng = Engine > > I am thinking of creating a lookup XML file to drive the find/replace actions: > > <?xml version="1.0" encoding="UTF-8"?> > <lookup> > <entry find="\bWid\b" replace="Widget"/> > <entry find="\bAssbly\b" replace="Assembly"/> > <entry find="\bEng\b" replace="Engine"/> > </lookup> > > I am having trouble figuring out a good XSLT 2 or 3 algorithm for actually doing the replacements. Any suggestions or pointers would be appreciated. Thank you very much. > > Rick > > Rick Quatro > Carmen Publishing Inc. > 585-729-6746 > rick@xxxxxxxxxxxxxxx <mailto:rick@xxxxxxxxxxxxxxx> > http://www.frameexpert.com/store <http://www.frameexpert.com/store> > > > XSL-List info and archive <http://www.mulberrytech.com/xsl/xsl-list> > EasyUnsubscribe <http://lists.mulberrytech.com/unsub/xsl-list/293509> (by email <>)
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