Interpreter for a subset of Knuth's MMIX in pure XSLT
All, As an exercise in XSLT programming, we in Propylon have implemented a MMIX Interperter (http://www-cs-faculty.stanford.edu/~knuth/mmix.html) in pure XSLT. A sample program that calculates PI is embedded with the interpreter. It can be found at: http://www.propylon.com/pimix.zip Note to MMIX programmers - pseudo directives (http://sources.redhat.com/binutils/docs-2.12/as.info/MMIX-Pseudos.html) are not supported in this release. Note that the calculation is very slow as it is based on Zoeller's Congruential Interator algorithm but is serves as an useful short example. For XALAN-C/Pyana users a sample program is included. The stylesheet should work with any reasonably conformant XSLT implementation. -- Python Program invoking Xalan via Pyana -- # Pyana example execution of MIX PI calculation stylesheet import Pyana fo = open ("pi-mix.xsl","r") xsl = fo.read() fo.close() fo = open ("pi.xml", "r") xml = fo.read() fo.close() print Pyana.transform2String(source=xml, style=xsl) -- Output -- 3.14159 regards, Sean http://seanmcgrath.blogspot.com
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