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reorder and rename of most functions, for better documentation.

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This commit is contained in:
Roberto Ierusalimschy 1998-12-27 18:22:36 -02:00
parent 63166c0ca0
commit 96a7695275
1 changed files with 317 additions and 266 deletions
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583
lbuiltin.c
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@ -1,5 +1,5 @@
/* /*
** $Id: lbuiltin.c,v 1.38 1998/12/15 15:21:09 roberto Exp $ ** $Id: lbuiltin.c,v 1.38 1998/12/15 15:21:09 roberto Exp roberto $
** Built-in functions ** Built-in functions
** See Copyright Notice in lua.h ** See Copyright Notice in lua.h
*/ */
@ -27,6 +27,13 @@
/*
** =======================================================
** Auxliliar functions
** =======================================================
*/
static void pushstring (TaggedString *s) { static void pushstring (TaggedString *s) {
TObject o; TObject o;
o.ttype = LUA_T_STRING; o.ttype = LUA_T_STRING;
@ -35,22 +42,23 @@ static void pushstring (TaggedString *s) {
} }
static int getsize (TObject *t) { static real getsize (TObject *t) {
int max = 0; real max = 0;
int i; int i;
Hash *h = avalue(t); Hash *h = avalue(t);
LUA_ASSERT(ttype(t) == LUA_T_ARRAY, "table expected"); LUA_ASSERT(ttype(t) == LUA_T_ARRAY, "table expected");
for (i = 0; i<nhash(h); i++) { for (i = 0; i<nhash(h); i++) {
Node *n = h->node+i; Node *n = h->node+i;
if (ttype(ref(n)) == LUA_T_NUMBER && ttype(val(n)) != LUA_T_NIL && if (ttype(ref(n)) == LUA_T_NUMBER &&
(int)nvalue(ref(n)) > max) ttype(val(n)) != LUA_T_NIL &&
nvalue(ref(n)) > max)
max = nvalue(ref(n)); max = nvalue(ref(n));
} }
return max; return max;
} }
static int getnarg (lua_Object table) { static real getnarg (lua_Object table) {
lua_Object temp; lua_Object temp;
/* temp = table.n */ /* temp = table.n */
lua_pushobject(table); lua_pushstring("n"); temp = lua_rawgettable(); lua_pushobject(table); lua_pushstring("n"); temp = lua_rawgettable();
@ -64,198 +72,63 @@ static void luaB_getn (void) {
} }
static void luaB_nextvar (void) {
TObject *o = luaA_Address(luaL_nonnullarg(1)); /*
TaggedString *g; ** =======================================================
if (ttype(o) == LUA_T_NIL) ** Functions that use only the official API
g = (TaggedString *)L->rootglobal.next; /* first variable */ ** =======================================================
else { */
luaL_arg_check(ttype(o) == LUA_T_STRING, 1, "variable name expected");
g = tsvalue(o); /* find given variable name */
/* check whether name is in global var list */
luaL_arg_check((GCnode *)g != g->head.next, 1, "variable name expected");
g = (TaggedString *)g->head.next; /* get next */
}
while (g && g->u.s.globalval.ttype == LUA_T_NIL) /* skip globals with nil */
g = (TaggedString *)g->head.next;
if (g) {
pushstring(g);
luaA_pushobject(&g->u.s.globalval);
}
else lua_pushnil(); /* no more globals */
}
static void luaB_foreachvar (void) { /*
TObject f = *luaA_Address(luaL_functionarg(1)); ** If your system does not support "stderr", remove this function and
GCnode *g; ** define your own "_ALERT" function. You *must* have an _ALERT function
StkId name = L->Cstack.base++; /* place to keep var name (to avoid GC) */ ** defined for Lua to work properly.
luaD_checkstack(4); /* for var name, f, s, and globalvar */ */
ttype(L->stack.stack+name) = LUA_T_NIL; static void luaB_alert (void) {
L->stack.top++; /* top == base */
for (g = L->rootglobal.next; g; g = g->next) {
TaggedString *s = (TaggedString *)g;
if (s->u.s.globalval.ttype != LUA_T_NIL) {
ttype(L->stack.stack+name) = LUA_T_STRING;
tsvalue(L->stack.stack+name) = s; /* keep s on stack to avoid GC */
*(L->stack.top++) = f;
pushstring(s);
*(L->stack.top++) = s->u.s.globalval;
luaD_calln(2, 1);
if (ttype(L->stack.top-1) != LUA_T_NIL)
return;
L->stack.top--;
}
}
}
static void luaB_next (void) {
Node *n = luaH_next(luaA_Address(luaL_tablearg(1)),
luaA_Address(luaL_nonnullarg(2)));
if (n) {
luaA_pushobject(&n->ref);
luaA_pushobject(&n->val);
}
else lua_pushnil();
}
static void luaB_foreach (void) {
TObject t = *luaA_Address(luaL_tablearg(1));
TObject f = *luaA_Address(luaL_functionarg(2));
int i;
luaD_checkstack(3); /* for f, ref, and val */
for (i=0; i<avalue(&t)->nhash; i++) {
Node *nd = &(avalue(&t)->node[i]);
if (ttype(ref(nd)) != LUA_T_NIL && ttype(val(nd)) != LUA_T_NIL) {
*(L->stack.top++) = f;
*(L->stack.top++) = *ref(nd);
*(L->stack.top++) = *val(nd);
luaD_calln(2, 1);
if (ttype(L->stack.top-1) != LUA_T_NIL)
return;
L->stack.top--;
}
}
}
static void luaB_foreachi (void) {
lua_Object ot = luaL_tablearg(1);
Hash *t = avalue(luaA_Address(ot));
TObject f = *luaA_Address(luaL_functionarg(2));
int i;
int n = getnarg(ot);
luaD_checkstack(3); /* for f, ref, and val */
for (i=1; i<=n; i++) {
*(L->stack.top++) = f;
ttype(L->stack.top) = LUA_T_NUMBER;
nvalue(L->stack.top++) = i;
*(L->stack.top++) = *luaH_getint(t, i);
luaD_calln(2, 1);
if (ttype(L->stack.top-1) != LUA_T_NIL)
return;
L->stack.top--;
}
}
static void luaB_dostring (void) {
long l;
char *s = luaL_check_lstr(1, &l);
if (*s == ID_CHUNK)
lua_error("`dostring' cannot run pre-compiled code");
if (lua_dobuffer(s, l, luaL_opt_string(2, NULL)) == 0)
if (luaA_passresults() == 0)
lua_pushuserdata(NULL); /* at least one result to signal no errors */
}
static void luaB_dofile (void) {
char *fname = luaL_opt_string(1, NULL);
if (lua_dofile(fname) == 0)
if (luaA_passresults() == 0)
lua_pushuserdata(NULL); /* at least one result to signal no errors */
}
static void luaB_tostring (void) {
lua_Object obj = lua_getparam(1);
TObject *o = luaA_Address(obj);
char buff[32];
switch (ttype(o)) {
case LUA_T_NUMBER:
lua_pushstring(lua_getstring(obj));
return;
case LUA_T_STRING:
lua_pushobject(obj);
return;
case LUA_T_ARRAY: {
sprintf(buff, "table: %p", (void *)o->value.a);
break;
}
case LUA_T_CLOSURE: {
sprintf(buff, "function: %p", (void *)o->value.cl);
break;
}
case LUA_T_PROTO: {
sprintf(buff, "function: %p", (void *)o->value.tf);
break;
}
case LUA_T_CPROTO: {
sprintf(buff, "function: %p", (void *)o->value.f);
break;
}
case LUA_T_USERDATA: {
sprintf(buff, "userdata: %p", o->value.ts->u.d.v);
break;
}
case LUA_T_NIL:
lua_pushstring("nil");
return;
default:
LUA_INTERNALERROR("invalid type");
}
lua_pushstring(buff);
}
static void luaB_print (void) {
TaggedString *ts = luaS_new("tostring");
lua_Object obj;
int i = 1;
while ((obj = lua_getparam(i++)) != LUA_NOOBJECT) {
luaA_pushobject(&ts->u.s.globalval);
lua_pushobject(obj);
luaD_calln(1, 1);
if (ttype(L->stack.top-1) != LUA_T_STRING)
lua_error("`tostring' must return a string to `print'");
if (i>2) fputs("\t", stdout);
fputs(svalue(L->stack.top-1), stdout);
L->stack.top--;
}
fputs("\n", stdout);
}
static void luaB_message (void) {
fputs(luaL_check_string(1), stderr); fputs(luaL_check_string(1), stderr);
} }
/*
** Standard implementation of _ERRORMESSAGE.
** The library "iolib" redefines _ERRORMESSAGE for better error information.
*/
static void error_message (void) { static void error_message (void) {
char buff[200]; char buff[600];
sprintf(buff, "lua error: %.180s\n", luaL_check_string(1)); sprintf(buff, "lua error: %.500s\n", luaL_check_string(1));
lua_pushstring(buff); lua_pushstring(buff);
lua_call("_ALERT"); lua_call("_ALERT");
} }
static void luaB_type (void) { /*
lua_Object o = luaL_nonnullarg(1); ** If your system does not support "stdout", just remove this function.
lua_pushstring(luaO_typename(luaA_Address(o))); ** If you need, you can define your own "print" function, following this
lua_pushnumber(lua_tag(o)); ** model but changing "fputs" to put the strings at a proper place
** (a console window or a log file, for instance).
*/
#define MAXPRINT 40
static void luaB_print (void) {
lua_Object args[MAXPRINT];
lua_Object obj;
int n = 0;
int i;
while ((obj = lua_getparam(n+1)) != LUA_NOOBJECT) {
luaL_arg_check(n < MAXPRINT, n+1, "too many arguments");
args[n++] = obj;
}
for (i=0; i<n; i++) {
lua_pushobject(args[i]);
if (lua_call("tostring"))
lua_error("error in `tostring' called by `print'");
obj = lua_getresult(1);
if (!lua_isstring(obj))
lua_error("`tostring' must return a string to `print'");
if (i>0) fputs("\t", stdout);
fputs(lua_getstring(obj), stdout);
}
fputs("\n", stdout);
} }
@ -282,14 +155,6 @@ static void luaB_error (void) {
lua_error(lua_getstring(lua_getparam(1))); lua_error(lua_getstring(lua_getparam(1)));
} }
static void luaB_assert (void) {
lua_Object p = lua_getparam(1);
if (p == LUA_NOOBJECT || lua_isnil(p))
luaL_verror("assertion failed! %.100s", luaL_opt_string(2, ""));
}
static void luaB_setglobal (void) { static void luaB_setglobal (void) {
char *n = luaL_check_string(1); char *n = luaL_check_string(1);
lua_Object value = luaL_nonnullarg(2); lua_Object value = luaL_nonnullarg(2);
@ -318,13 +183,91 @@ static void luaB_luatag (void) {
lua_pushnumber(lua_tag(lua_getparam(1))); lua_pushnumber(lua_tag(lua_getparam(1)));
} }
static void luaB_settag (void) {
lua_Object o = luaL_tablearg(1);
lua_pushobject(o);
lua_settag(luaL_check_number(2));
lua_pushobject(o); /* returns first argument */
}
static void luaB_newtag (void) {
lua_pushnumber(lua_newtag());
}
static void luaB_copytagmethods (void) {
lua_pushnumber(lua_copytagmethods(luaL_check_number(1),
luaL_check_number(2)));
}
static void luaB_rawgettable (void) {
lua_pushobject(luaL_nonnullarg(1));
lua_pushobject(luaL_nonnullarg(2));
lua_pushobject(lua_rawgettable());
}
static void luaB_rawsettable (void) {
lua_pushobject(luaL_nonnullarg(1));
lua_pushobject(luaL_nonnullarg(2));
lua_pushobject(luaL_nonnullarg(3));
lua_rawsettable();
}
static void luaB_settagmethod (void) {
lua_Object nf = luaL_nonnullarg(3);
lua_pushobject(nf);
lua_pushobject(lua_settagmethod((int)luaL_check_number(1),
luaL_check_string(2)));
}
static void luaB_gettagmethod (void) {
lua_pushobject(lua_gettagmethod((int)luaL_check_number(1),
luaL_check_string(2)));
}
static void luaB_seterrormethod (void) {
lua_Object nf = luaL_functionarg(1);
lua_pushobject(nf);
lua_pushobject(lua_seterrormethod());
}
static void luaB_collectgarbage (void) {
lua_pushnumber(lua_collectgarbage(luaL_opt_number(1, 0)));
}
/*
** =======================================================
** Functions that could use only the official API but
** do not, for efficiency.
** =======================================================
*/
static void luaB_dostring (void) {
long l;
char *s = luaL_check_lstr(1, &l);
if (*s == ID_CHUNK)
lua_error("`dostring' cannot run pre-compiled code");
if (lua_dobuffer(s, l, luaL_opt_string(2, NULL)) == 0)
if (luaA_passresults() == 0)
lua_pushuserdata(NULL); /* at least one result to signal no errors */
}
static void luaB_dofile (void) {
char *fname = luaL_opt_string(1, NULL);
if (lua_dofile(fname) == 0)
if (luaA_passresults() == 0)
lua_pushuserdata(NULL); /* at least one result to signal no errors */
}
static void luaB_call (void) { static void luaB_call (void) {
lua_Object f = luaL_nonnullarg(1); lua_Object f = luaL_nonnullarg(1);
lua_Object arg = luaL_tablearg(2); lua_Object arg = luaL_tablearg(2);
char *options = luaL_opt_string(3, ""); char *options = luaL_opt_string(3, "");
lua_Object err = lua_getparam(4); lua_Object err = lua_getparam(4);
int narg = getnarg(arg); int narg = (int)getnarg(arg);
int i, status; int i, status;
if (err != LUA_NOOBJECT) { /* set new error method */ if (err != LUA_NOOBJECT) { /* set new error method */
lua_pushobject(err); lua_pushobject(err);
@ -356,66 +299,90 @@ static void luaB_call (void) {
} }
static void luaB_settag (void) {
lua_Object o = luaL_tablearg(1); /*
lua_pushobject(o); ** =======================================================
lua_settag(luaL_check_number(2)); ** "Extra" functions
lua_pushobject(o); /* returns first argument */ ** (These functions can be written in Lua, so you can
** delete them if you need a tiny Lua implementation.)
** =======================================================
*/
static void luaB_assert (void) {
lua_Object p = lua_getparam(1);
if (p == LUA_NOOBJECT || lua_isnil(p))
luaL_verror("assertion failed! %.100s", luaL_opt_string(2, ""));
} }
static void luaB_newtag (void) { static void luaB_foreachi (void) {
lua_pushnumber(lua_newtag()); lua_Object ot = luaL_tablearg(1);
Hash *t = avalue(luaA_Address(ot));
TObject f = *luaA_Address(luaL_functionarg(2));
int i;
int n = (int)getnarg(ot);
luaD_checkstack(3); /* for f, ref, and val */
for (i=1; i<=n; i++) {
*(L->stack.top++) = f;
ttype(L->stack.top) = LUA_T_NUMBER;
nvalue(L->stack.top++) = i;
*(L->stack.top++) = *luaH_getint(t, i);
luaD_calln(2, 1);
if (ttype(L->stack.top-1) != LUA_T_NIL)
return;
L->stack.top--;
}
} }
static void luaB_copytagmethods (void) { static void luaB_foreach (void) {
lua_pushnumber(lua_copytagmethods(luaL_check_number(1), TObject t = *luaA_Address(luaL_tablearg(1));
luaL_check_number(2))); TObject f = *luaA_Address(luaL_functionarg(2));
int i;
luaD_checkstack(3); /* for f, ref, and val */
for (i=0; i<avalue(&t)->nhash; i++) {
Node *nd = &(avalue(&t)->node[i]);
if (ttype(ref(nd)) != LUA_T_NIL && ttype(val(nd)) != LUA_T_NIL) {
*(L->stack.top++) = f;
*(L->stack.top++) = *ref(nd);
*(L->stack.top++) = *val(nd);
luaD_calln(2, 1);
if (ttype(L->stack.top-1) != LUA_T_NIL)
return;
L->stack.top--;
}
}
} }
static void luaB_rawgettable (void) { static void luaB_foreachvar (void) {
lua_pushobject(luaL_nonnullarg(1)); TObject f = *luaA_Address(luaL_functionarg(1));
lua_pushobject(luaL_nonnullarg(2)); GCnode *g;
lua_pushobject(lua_rawgettable()); StkId name = L->Cstack.base++; /* place to keep var name (to avoid GC) */
luaD_checkstack(4); /* for var name, f, s, and globalvar */
ttype(L->stack.stack+name) = LUA_T_NIL;
L->stack.top++; /* top == base */
for (g = L->rootglobal.next; g; g = g->next) {
TaggedString *s = (TaggedString *)g;
if (s->u.s.globalval.ttype != LUA_T_NIL) {
ttype(L->stack.stack+name) = LUA_T_STRING;
tsvalue(L->stack.stack+name) = s; /* keep s on stack to avoid GC */
*(L->stack.top++) = f;
pushstring(s);
*(L->stack.top++) = s->u.s.globalval;
luaD_calln(2, 1);
if (ttype(L->stack.top-1) != LUA_T_NIL)
return;
L->stack.top--;
}
}
} }
static void luaB_rawsettable (void) {
lua_pushobject(luaL_nonnullarg(1));
lua_pushobject(luaL_nonnullarg(2));
lua_pushobject(luaL_nonnullarg(3));
lua_rawsettable();
}
static void luaB_settagmethod (void) {
lua_Object nf = luaL_nonnullarg(3);
lua_pushobject(nf);
lua_pushobject(lua_settagmethod((int)luaL_check_number(1),
luaL_check_string(2)));
}
static void luaB_gettagmethod (void) {
lua_pushobject(lua_gettagmethod((int)luaL_check_number(1),
luaL_check_string(2)));
}
static void luaB_seterrormethod (void) {
lua_Object nf = luaL_functionarg(1);
lua_pushobject(nf);
lua_pushobject(lua_seterrormethod());
}
static void luaB_collectgarbage (void) {
lua_pushnumber(lua_collectgarbage(luaL_opt_number(1, 0)));
}
/*
** Quicksort algorithm from "Programming Pearls", pg. 112
*/
static void swap (Hash *a, int i, int j) { static void swap (Hash *a, int i, int j) {
/* notice: must use two temporary vars, because luaH_setint may cause a /* notice: must use two temporary vars, because luaH_setint may cause a
@ -442,9 +409,6 @@ static int sort_comp (TObject *f, TObject *a, TObject *b) {
return ttype(--(L->stack.top)) != LUA_T_NIL; return ttype(--(L->stack.top)) != LUA_T_NIL;
} }
/*
** quicksort algorithm from "Programming Pearls", pg. 112
*/
static void auxsort (Hash *a, int l, int u, TObject *f) { static void auxsort (Hash *a, int l, int u, TObject *f) {
init: init:
if (u <= l) return; /* 0 or 1 element */ if (u <= l) return; /* 0 or 1 element */
@ -466,7 +430,7 @@ static void auxsort (Hash *a, int l, int u, TObject *f) {
} }
} }
L->stack.top--; /* remove pivot from stack */ L->stack.top--; /* remove pivot from stack */
swap(a, l, m); swap(a, l, m); /* swap pivot with a[m] */
/* a[l..m-1] < a[m] <= a[m+1..u] */ /* a[l..m-1] < a[m] <= a[m+1..u] */
if (m-l < u-m) { /* check which "half" is bigger */ if (m-l < u-m) { /* check which "half" is bigger */
auxsort(a, l, m-1, f); /* call recursively the smaller one */ auxsort(a, l, m-1, f); /* call recursively the smaller one */
@ -481,7 +445,7 @@ static void auxsort (Hash *a, int l, int u, TObject *f) {
static void luaB_sort (void) { static void luaB_sort (void) {
lua_Object t = luaL_tablearg(1); lua_Object t = luaL_tablearg(1);
int n = getnarg(t); int n = (int)getnarg(t);
Hash *a = avalue(luaA_Address(t)); Hash *a = avalue(luaA_Address(t));
lua_Object func = lua_getparam(2); lua_Object func = lua_getparam(2);
TObject *f = luaA_Address(func); TObject *f = luaA_Address(func);
@ -491,12 +455,100 @@ static void luaB_sort (void) {
} }
/*
** =======================================================
** Internal Functions.
** These functions need access to internal structures
** to be implemented.
** =======================================================
*/
static void luaB_nextvar (void) {
TObject *o = luaA_Address(luaL_nonnullarg(1));
TaggedString *g;
if (ttype(o) == LUA_T_NIL)
g = (TaggedString *)L->rootglobal.next; /* first variable */
else {
luaL_arg_check(ttype(o) == LUA_T_STRING, 1, "variable name expected");
g = tsvalue(o); /* find given variable name */
/* check whether name is in global var list */
luaL_arg_check((GCnode *)g != g->head.next, 1, "variable name expected");
g = (TaggedString *)g->head.next; /* get next */
}
while (g && g->u.s.globalval.ttype == LUA_T_NIL) /* skip globals with nil */
g = (TaggedString *)g->head.next;
if (g) {
pushstring(g);
luaA_pushobject(&g->u.s.globalval);
}
else lua_pushnil(); /* no more globals */
}
static void luaB_next (void) {
Node *n = luaH_next(luaA_Address(luaL_tablearg(1)),
luaA_Address(luaL_nonnullarg(2)));
if (n) {
luaA_pushobject(&n->ref);
luaA_pushobject(&n->val);
}
else lua_pushnil();
}
static void luaB_tostring (void) {
lua_Object obj = lua_getparam(1);
TObject *o = luaA_Address(obj);
char buff[64];
switch (ttype(o)) {
case LUA_T_NUMBER:
lua_pushstring(lua_getstring(obj));
return;
case LUA_T_STRING:
lua_pushobject(obj);
return;
case LUA_T_ARRAY:
sprintf(buff, "table: %p", (void *)o->value.a);
break;
case LUA_T_CLOSURE:
sprintf(buff, "function: %p", (void *)o->value.cl);
break;
case LUA_T_PROTO:
sprintf(buff, "function: %p", (void *)o->value.tf);
break;
case LUA_T_CPROTO:
sprintf(buff, "function: %p", (void *)o->value.f);
break;
case LUA_T_USERDATA:
sprintf(buff, "userdata: %p", o->value.ts->u.d.v);
break;
case LUA_T_NIL:
lua_pushstring("nil");
return;
default:
LUA_INTERNALERROR("invalid type");
}
lua_pushstring(buff);
}
static void luaB_type (void) {
lua_Object o = luaL_nonnullarg(1);
lua_pushstring(luaO_typename(luaA_Address(o)));
lua_pushnumber(lua_tag(o));
}
#ifdef DEBUG
/* /*
** ======================================================= ** =======================================================
** some DEBUG functions ** some DEBUG functions
** ======================================================= ** =======================================================
*/ */
#ifdef DEBUG
static void mem_query (void) { static void mem_query (void) {
lua_pushnumber(totalmem); lua_pushnumber(totalmem);
@ -567,10 +619,8 @@ static void testC (void) {
#endif #endif
/*
** Internal functions static struct luaL_reg builtin_funcs[] = {
*/
static struct luaL_reg int_funcs[] = {
#ifdef LUA_COMPAT2_5 #ifdef LUA_COMPAT2_5
{"setfallback", luaT_setfallback}, {"setfallback", luaT_setfallback},
#endif #endif
@ -579,19 +629,17 @@ static struct luaL_reg int_funcs[] = {
{"totalmem", mem_query}, {"totalmem", mem_query},
{"count", countlist}, {"count", countlist},
#endif #endif
{"assert", luaB_assert}, {"_ALERT", luaB_alert},
{"_ERRORMESSAGE", error_message},
{"call", luaB_call}, {"call", luaB_call},
{"collectgarbage", luaB_collectgarbage}, {"collectgarbage", luaB_collectgarbage},
{"dofile", luaB_dofile},
{"copytagmethods", luaB_copytagmethods}, {"copytagmethods", luaB_copytagmethods},
{"dofile", luaB_dofile},
{"dostring", luaB_dostring}, {"dostring", luaB_dostring},
{"error", luaB_error}, {"error", luaB_error},
{"_ERRORMESSAGE", error_message},
{"foreach", luaB_foreach},
{"foreachi", luaB_foreachi},
{"foreachvar", luaB_foreachvar},
{"getn", luaB_getn},
{"getglobal", luaB_getglobal}, {"getglobal", luaB_getglobal},
{"getn", luaB_getn},
{"gettagmethod", luaB_gettagmethod},
{"newtag", luaB_newtag}, {"newtag", luaB_newtag},
{"next", luaB_next}, {"next", luaB_next},
{"nextvar", luaB_nextvar}, {"nextvar", luaB_nextvar},
@ -602,26 +650,29 @@ static struct luaL_reg int_funcs[] = {
{"rawsettable", luaB_rawsettable}, {"rawsettable", luaB_rawsettable},
{"seterrormethod", luaB_seterrormethod}, {"seterrormethod", luaB_seterrormethod},
{"setglobal", luaB_setglobal}, {"setglobal", luaB_setglobal},
{"settagmethod", luaB_settagmethod},
{"gettagmethod", luaB_gettagmethod},
{"settag", luaB_settag}, {"settag", luaB_settag},
{"sort", luaB_sort}, {"settagmethod", luaB_settagmethod},
{"tag", luaB_luatag},
{"tonumber", luaB_tonumber}, {"tonumber", luaB_tonumber},
{"tostring", luaB_tostring}, {"tostring", luaB_tostring},
{"tag", luaB_luatag},
{"type", luaB_type}, {"type", luaB_type},
{"_ALERT", luaB_message} /* "Extra" functions */
{"assert", luaB_assert},
{"foreach", luaB_foreach},
{"foreachi", luaB_foreachi},
{"foreachvar", luaB_foreachvar},
{"sort", luaB_sort}
}; };
#define INTFUNCSIZE (sizeof(int_funcs)/sizeof(int_funcs[0])) #define INTFUNCSIZE (sizeof(builtin_funcs)/sizeof(builtin_funcs[0]))
void luaB_predefine (void) { void luaB_predefine (void) {
/* pre-register mem error messages, to avoid loop when error arises */ /* pre-register mem error messages, to avoid loop when error arises */
luaS_newfixedstring(tableEM); luaS_newfixedstring(tableEM);
luaS_newfixedstring(memEM); luaS_newfixedstring(memEM);
luaL_openlib(int_funcs, (sizeof(int_funcs)/sizeof(int_funcs[0]))); luaL_openlib(builtin_funcs, (sizeof(builtin_funcs)/sizeof(builtin_funcs[0])));
lua_pushstring(LUA_VERSION); lua_pushstring(LUA_VERSION);
lua_setglobal("_VERSION"); lua_setglobal("_VERSION");
} }