Ruby Lex Specification

[Vasco Andrade e Silva]

Hi,

Where can i find a ruby (1.8.6) syntax specification? If that
specification means a file in the source, no problem for me.

Thanks,
Vasco Andrade e Silva

 

[Vasco Andrade e Silva]

Thanks Jason.

Correct me if i'm wrong but doesn't yacc (or the parser) need something
before it (like lex or a tokenizer) to 'tokenize' the text?

I can identify the tokens in parse.y but i was looking for a
"specification" for them. Example: if i see "class" probably i want to
create the token kCLASS, but i wanted to be sure..

Vasco Andrade e Silva

 

[Gaspard Bucher]

Waou!!

I am currently writing a parser for a simple command line. (chose to
use lemon instead of bison). I had a look at the file you mentioned.
This is impressive. Expressivity and freedom for the programmer means
hard work for the developer (syntax for lisp is really smaller).
Thanks Matz for choosing expressivity.

Gaspard

parse.y is your source. (http://svn.ruby-lang.org/repos/ruby/trunk/parse.y)

There is no official Ruby spec (yet), but it is slowly being worked on.

Jason

 

[Vasco Andrade e Silva]

Then this is this file you wanted:
http://svn.ruby-lang.org/repos/ruby/trunk/keywords

Thanks a lot.

(What a mess between the parser, keywords... )

 

[Gene Tani]

Thanks a lot.

(What a mess between the parser, keywords... )

there were also ANTLR grammars

http://redhanded.hobix.com/cult/parseYRemakes.html