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Old 05-25-2010, 08:12 PM   #1990
kovidgoyal
creator of calibre
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Posts: 26,155
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Yeah calibre uses pyparsing to build the parser that tokenizes the search strings. While I haven't used lex/yacc at all, I do enjoying working with pyparsing.

http://onlamp.com/pub/a/python/2006/...pyparsing.html
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