Re: lua.c

[Luiz Henrique de Figueiredo <lhf@...>]

The work version of lua.c at http://www.tecgraf.puc-rio.br/lua/work/lua.c
can be run with Lua 4.0, with the following simple changes:

1. In lua.c, after #include "lua.h" add the following lines:

#define lua_pushliteral(L, s)	\
	lua_pushlstring(L, "" s, (sizeof(s)/sizeof(char))-1)
#define lua_upvalueindex(i)	(-(i))
#define lua_newuserdatabox	lua_pushuserdata

LUA_API int   lua_loadbuffer (lua_State *L, const char *buff, size_t size,
                            const char *name);

2. In lua.c, in load_string, before lua_concat, add the following line:

  lua_pushstring(L, " ");

(Apparently, lua_concat(L,n) in 4.0 does not work for n=1.)

3. In ldo.c, change
	static int parse_buffer 
to
	LUA_API int lua_loadbuffer

This will give you a nicer interpreter for the official Lua version.
(The readline support should also work: compile with -DUSE_READLINE and
link with -lreadline and perhaps also with -lhistory.)

Enjoy!