Re: C compiler from scratch.

> Hi , I am looking for C grammar that is suitable for building a (hand
> written) compiler from scratch.Does the grammar provided in appendix
> of K&R book work? Or any alternatives please?


LL (1) grammars are suitable for handwritten parsers at best, because
every rule of the parser then can be considered as a specification for
the creation of a routine in your programming language.


http://www.texttransformer.com/tthelp/introduction_prodsasfuncs.htm


The C parser at


http://www.texttransformer.org/c_en.html


nearly is an LL(1) adaption from the yacc grammar:


http://www.lysator.liu.se/c/ANSI-C-grammar-l.html


To read the grammar, you will have to install the free version of
TextTransformer:


http://www.texttransformer.com/downloads/TetraInstall.exe


There are two places, where a look-ahead was necessary. E.g. in the
statement rule:


IF(labeled_statement())
labeled_statement
ELSE
...


The second look-ahead is in the rule "parameter_declaration". At this
places you have to find your own handwritten solutions.


If you will take C.ttp as copy for your project I would be pleased
very much if you would report me from your experiences.

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