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From: Joel Reymont <joelr1@gmail.com>
To: Matthieu Wipliez <mwipliez@yahoo.fr>
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Subject: Re: Re : [Caml-list] Re: camlp4 stream parser syntax
Date: Sun, 8 Mar 2009 00:40:10 +0000
Cc: O'Caml Mailing List <caml-list@yquem.inria.fr>
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X-Spam: no; 0.00; camlp:01 parser:01 syntax:01 matthieu:01 camlp:01 parser:01 failwith:01 lexer:01 lexer:01 ocaml:01 char:01 char:01 token:01 token:01 caml-list:01 

Matthieu,

Is the camlp4 grammar parser case-insensitive?

Will both Delay and delay be accepted in the actionDelay rule?

	actionDelay: [ [ "delay"; expression ->
		Asthelper.failwith (convert_loc _loc)
			"RVC-CAL does not permit the use of delay." ] ];


Also, I noticed that your lexer has a really small token set, i.e.

type token =
     | KEYWORD of string
     | SYMBOL  of string
     | IDENT   of string
     | INT     of int * string
     | FLOAT   of float * string
     | CHAR    of char * string
     | STRING  of string * string
     | EOI

My custom lexer, on the other hand, has a HUGE token set, e.g.

   type token =
     | BUY_TO_COVER
     | SELL_SHORT
     | AT_ENTRY
     | RANGE
     | YELLOW
     | WHITE
     | WHILE
     | UNTIL
     ...

This is partly because I have a very large set of keywords.

Do I correctly understand that I do not need all the keywords since I  
can match them in the camlp4 grammar as strings like "BuyToCover",  
"SellShort", etc.?

	Thanks, Joel

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