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|    comp.compilers    |    Compiler construction, theory, etc. (Mod    |    2,754 messages    |
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|    Message 1,515 of 2,754    |
|    Jeremy Bennett to tuxisthebirdforme@gmail.com    |
|    Re: Has anyone hand-written a scanner/pa    |
|    16 Nov 08 04:06:33    |
      From: jeremy.bennett@embecosm.com              On Sat, 15 Nov 2008 09:49:38 -0800, tuxisthebirdforme@gmail.com wrote:              > I know most people anymore use lex/yacc or some derivative of these       > tools to create scanner/parser modules for their compiler projects. I       > was wondering if anyone has developed a scanner or parser that they       > personally hand-wrote? ...              It's old, but take a look at "BCPL: The Language and its Compiler" by       Martin Richards and Colin Whitby-Strevens. It includes the listing and       description for the BCPL compiler front end (in BCPL of course). It's an       example of a hand-written recursive descent compiler with precedence       parsing for expressions.              I believe that makes it a parser for LL(1) language with LR(1)       expressions.              HTH,                     Jeremy              --- SoupGate-Win32 v1.05        * Origin: you cannot sedate... all the things you hate (1:229/2)    |
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