static int loadline(LuaState L)
{
int status;
Lua.LuaSetTop(L, 0);
if (pushline(L, 1) == 0)
{
return(-1); /* no input */
}
for (; ;)
{ /* repeat until gets a complete line */
status = Lua.LuaLLoadBuffer(L, Lua.LuaToString(L, 1), Lua.LuaStrLen(L, 1), "=stdin");
if (incomplete(L, status) == 0)
{
break; /* cannot try to add lines? */
}
if (pushline(L, 0) == 0) /* no more input? */
{
return(-1);
}
Lua.LuaPushLiteral(L, "\n"); /* add a new line... */
Lua.LuaInsert(L, -2); /* ...between the two lines */
Lua.LuaConcat(L, 3); /* join them */
}
Lua.lua_saveline(L, 1);
Lua.LuaRemove(L, 1); /* remove line */
return(status);
}
static void dotty(LuaState L)
{
int status;
CharPtr oldprogname = progname;
progname = null;
while ((status = loadline(L)) != -1)
{
if (status == 0)
{
status = docall(L, 0, 0);
}
report(L, status);
if (status == 0 && Lua.LuaGetTop(L) > 0)
{ /* any result to print? */
Lua.LuaGetGlobal(L, "print");
Lua.LuaInsert(L, 1);
if (Lua.LuaPCall(L, Lua.LuaGetTop(L) - 1, 0, 0) != 0)
{
l_message(progname, Lua.LuaPushFString(L,
"error calling " + Lua.LUA_QL("print").ToString() + " (%s)",
Lua.LuaToString(L, -1)));
}
}
}
Lua.LuaSetTop(L, 0); /* clear stack */
Lua.fputs("\n", Lua.stdout);
Lua.fflush(Lua.stdout);
progname = oldprogname;
}
static int docall(LuaState L, int narg, int clear)
{
int status;
int base_ = Lua.LuaGetTop(L) - narg; /* function index */
Lua.LuaPushCFunction(L, traceback); /* push traceback function */
Lua.LuaInsert(L, base_); /* put it under chunk and args */
//signal(SIGINT, laction);
status = Lua.LuaPCall(L, narg, ((clear != 0) ? 0 : Lua.LUA_MULTRET), base_);
//signal(SIGINT, SIG_DFL);
Lua.LuaRemove(L, base_); /* remove traceback function */
/* force a complete garbage collection in case of errors */
if (status != 0)
{
Lua.LuaGC(L, Lua.LUA_GCCOLLECT, 0);
}
return(status);
}
static int handle_script(LuaState L, string[] argv, int n)
{
int status;
CharPtr fname;
int narg = getargs(L, argv, n); /* collect arguments */
Lua.LuaSetGlobal(L, "arg");
fname = argv[n];
if (Lua.strcmp(fname, "-") == 0 && Lua.strcmp(argv[n - 1], "--") != 0)
{
fname = null; /* stdin */
}
status = Lua.LuaLLoadFile(L, fname);
Lua.LuaInsert(L, -(narg + 1));
if (status == 0)
{
status = docall(L, narg, 0);
}
else
{
Lua.LuaPop(L, narg);
}
return(report(L, status));
}
