Comments on: Building a tokenizer for XPath or XQuery http://dubinko.info/blog/2007/10/20/building-a-tokenizer-for-xpath-or-xquery/ From an XML geek, a reader, a writer, a connector, a man of the people (says keep hope alive) Sat, 01 Oct 2011 16:18:55 +0000 hourly 1 http://wordpress.org/?v=3.3.2 By: Dimitre Novatchev http://dubinko.info/blog/2007/10/20/building-a-tokenizer-for-xpath-or-xquery/comment-page-1/#comment-3747 Dimitre Novatchev Sun, 21 Oct 2007 15:55:17 +0000 http://dubinko.info/blog/2007/10/20/building-a-tokenizer-for-xpath-or-xquery/#comment-3747 Hi Micah, Recently I had fun implementing the parsing stage of an XPath 2.0 implementation in pure XSLT. I followed the XPath 2.0 lexical description and syntax as per Michael Kay's book and everything went pretty straightforward. I found only a couple of typographical errors in the grammar specification, such as using a chevron instead of a '>', or some improper nesting of quotes. For the lexical analysis phase I am using the RegEx support of XSLT 2.0. For the parsing phase I am using the same generic LR parsing framework from FXSL, which I already used successfully in parsing JSON and converting it to XML. I also found the W#C document not of too-big value. I had similar question like you and posted it in the xsl-list: "Grammars for XPath 2.0: which to use?" In this thread Michael Kay posted a very useful answer. See my blog for a description of the JSON to XML parser and the FXSL Generic LR Parsing Framework. I would be glad to provide more information on my XPath 2.0 parsing experience. It was great fun. Cheers, Dimitre Novatchev Hi Micah,
Recently I had fun implementing the parsing stage of an XPath 2.0 implementation in pure XSLT.

I followed the XPath 2.0 lexical description and syntax as per Michael Kay’s book and everything went pretty straightforward.

I found only a couple of typographical errors in the grammar specification, such as using a chevron instead of a ‘>’, or some improper nesting of quotes.

For the lexical analysis phase I am using the RegEx support of XSLT 2.0.

For the parsing phase I am using the same generic LR parsing framework from FXSL, which I already used successfully in parsing JSON and converting it to XML.

I also found the W#C document not of too-big value. I had similar question like you and posted it in the xsl-list:

“Grammars for XPath 2.0: which to use?” In this thread Michael Kay posted a very useful answer.

See my blog for a description of the JSON to XML parser and the FXSL Generic LR Parsing Framework.

I would be glad to provide more information on my XPath 2.0 parsing experience. It was great fun.

Cheers,
Dimitre Novatchev

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