tolua

[Juergen Fuhrmann <fuhrmann@...>]

Hi,

As I have the feeling that  someone is working on tolua5, I would like
to submit  a change in tolua4 I  made. It allows C  code prefixed with
'$$$' in the  pkg desctription to be added  to tolua_..._open in order
to do some more initializations. I  am using this in order to register
garbage collection for with pointers to C structures.

The  appendix  contains  the  modified  src/bin/verbatim.lua  (against
tolua4.0a).


Juergen Fuhrmann

-- tolua: verbatim class
-- Written by Waldemar Celes
-- TeCGraf/PUC-Rio
-- Jul 1998
-- $Id: verbatim.lua,v 1.1 2003/02/10 14:31:02 fuhrmann Exp $

-- This code is free software; you can redistribute it and/or modify it.
-- The software provided hereunder is on an "as is" basis, and
-- the author has no obligation to provide maintenance, support, updates,
-- enhancements, or modifications. 



-- Verbatim class
-- Represents a line translated directed to the binding file.
-- The following filds are stored:
--   line = line text
classVerbatim = {
 line = '',
 _base = classFeature,
}
settag(classVerbatim,tolua_tag)

-- preamble verbatim
function classVerbatim:preamble ()
 if not self.cond then
  write(self.line)
 end
end

-- support code
function classVerbatim:supcode ()
 if self.cond==1 then
  write(self.line)
  write('\n')
 end
end

-- register code
function classVerbatim:register ()
 if self.cond==2 then
  write(self.line)
 end
end
 

-- Print method
function classVerbatim:print (ident,close)
 print(ident.."Verbatim{")
 print(ident.." line = '"..self.line.."',")
 print(ident.."}"..close)
end


-- Internal constructor
function _Verbatim (t)
 t._base = classVerbatim
 settag(t,tolua_tag)
 append(t)
 return t
end

-- Constructor
-- Expects a string representing the text line
function Verbatim (l)
 local c
 if strsub(l,1,1) == '$' then
  c = 1
  l = strsub(l,2)
 end
 if strsub(l,1,1) == '$' then
  c = 2
  l = strsub(l,2)
 end
 return _Verbatim {
  line = l,
  cond = c
 }
end