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camlp4 stream parser syntax
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| Date: | -- (:) |
| From: | Joel Reymont <joelr1@g...> |
| Subject: | Re: Re : [Caml-list] Re: camlp4 stream parser syntax |
On Mar 8, 2009, at 2:09 PM, Matthieu Wipliez wrote: > using a single rule, say > buy : [ [ "buyOrSell"; ... ] ] Yes, I want camel-case above. > and at lexing time do > if String.lowercase s = "buyorsell" then > IDENT "buy_or_sell" > else > IDENT s And this is the part that I object to. I have quite a number of keywords and I don't want to have a bunch of if statements or have a hash table mapping lowercase to camel case. This would mean having to track the parser (camel case) version in two places: the lexer and the parser. What I want is to extend Camlp4.Struct.Grammar.Static with a custom version of Make that applies String.lowercase before giving the string to 'using' to be inserted into the keywords table. Thanks, Joel --- http://tinyco.de Mac, C++, OCaml