Re: String hashing code
On Fri, 2007-12-14 at 18:36 +1100, Deborah Pickett wrote: > > I am processing a number of separate XML documents using an Ant <xslt> > task, pulling out the MathML that is embedded inside them into their own > XML files using xsl:result-document (where I render them using Batik). > I want to make sure that the result document names don't clash, but > because they are across several source files, generate-id() isn't going > to suffice. There are thousands of source files, all with > English-sounding names spread across many directories. Use the file name/path and concat with generate-id() (or position() if they have the same parent). Either output them to the same directory as the source file or to some mirrored dir structure. best, -Rob > > I was thinking of hashing document-uri(/) to produce a probably-unique > string that I can then append generate-id(.) to. I rejected > encode-for-uri() as producing strings that are too long, and for not > anonymizing the document uri enough. All the hashing algorithms I know > (MD5, for instance) happen to be heavy on bitwise operations, and I feel > dirty doing bitwise operations with arithmetic. > > I prefer not to escape to non-XSLT, because I am providing this as part > of a library that needs to run on almost any XSLT 2.0 platform. > > Any clever ideas?
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