From: Judson Lester <nyarly@...>
Date: 2008-02-09T06:37:18+09:00
Subject: Re: ragel and ruby

This is sort of unconsidered, but it might help.  In order to get
Ragel to work for me, I needed to add the following to the code
definition template:


      %%{
        write init;
      }%%
      mark = nil
      data = io.read
      p = 0
      pe = data.length
      stack = []
      top = 0
      %%write exec;


If I recall correctly, there's a way to go the other way: to have
Ragel generate different code for getting the next character, but it's
been a little while and I don't remember what it is.



On Feb 8, 2008 12:49 PM, Philipp Hofmann <phil@s126.de> wrote:
>
>
> Hi,
>
> I've been trying to generate ruby with ragel. But the generated code
> is complaing about undefined local variables
>
> Here an excerpt of the generated code:
>
>   class MyParser
>
>     # more generated code here ...
>
>     class << self
>       attr_accessor :mymachine_start
>     end
>
>     # and here ...
>
>     def parse(input)
>
>       # ...
>
>       begin
>         cs = mymachine_start
>       end
>
>       # ...
>
>     end
>
>   end
>
> If I prepend 'type.', which is deprecated, I know, it works for this
> case. But there are other accessor that are being set private, e. g.
>
>   attr_accessor :_mymachine_trans_actions_wi
>   private :_mymachine_trans_actions_wi, :_mymachine_trans_actions_wi=
>
> How is this mean to work?
>
> And why isn't an accessor set at class level not accessible from within
> an instance of this class in the first place?
>
> g phil
>
>



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