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-rw-r--r--src/lbuiltin.c736
1 files changed, 0 insertions, 736 deletions
diff --git a/src/lbuiltin.c b/src/lbuiltin.c
deleted file mode 100644
index c88ccd41..00000000
--- a/src/lbuiltin.c
+++ /dev/null
@@ -1,736 +0,0 @@
-/*
-** $Id: lbuiltin.c,v 1.59 1999/06/17 17:04:03 roberto Exp $
-** Built-in functions
-** See Copyright Notice in lua.h
-*/
-
-
-#include <ctype.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "lapi.h"
-#include "lauxlib.h"
-#include "lbuiltin.h"
-#include "ldo.h"
-#include "lfunc.h"
-#include "lmem.h"
-#include "lobject.h"
-#include "lstate.h"
-#include "lstring.h"
-#include "ltable.h"
-#include "ltm.h"
-#include "lua.h"
-#include "lundump.h"
-#include "lvm.h"
-
-
-
-/*
-** {======================================================
-** Auxiliary functions
-** =======================================================
-*/
-
-
-static void pushtagstring (TaggedString *s) {
- TObject o;
- o.ttype = LUA_T_STRING;
- o.value.ts = s;
- luaA_pushobject(&o);
-}
-
-
-static real getsize (Hash *h) {
- real max = 0;
- int i;
- for (i = 0; i<nhash(h); i++) {
- Node *n = h->node+i;
- if (ttype(ref(n)) == LUA_T_NUMBER &&
- ttype(val(n)) != LUA_T_NIL &&
- nvalue(ref(n)) > max)
- max = nvalue(ref(n));
- }
- return max;
-}
-
-
-static real getnarg (Hash *a) {
- TObject index;
- TObject *value;
- /* value = table.n */
- ttype(&index) = LUA_T_STRING;
- tsvalue(&index) = luaS_new("n");
- value = luaH_get(a, &index);
- return (ttype(value) == LUA_T_NUMBER) ? nvalue(value) : getsize(a);
-}
-
-
-static Hash *gethash (int arg) {
- return avalue(luaA_Address(luaL_tablearg(arg)));
-}
-
-/* }====================================================== */
-
-
-/*
-** {======================================================
-** Functions that use only the official API
-** =======================================================
-*/
-
-
-/*
-** If your system does not support "stderr", redefine this function, or
-** redefine _ERRORMESSAGE so that it won't need _ALERT.
-*/
-static void luaB_alert (void) {
- fputs(luaL_check_string(1), stderr);
-}
-
-
-/*
-** Standard implementation of _ERRORMESSAGE.
-** The library "iolib" redefines _ERRORMESSAGE for better error information.
-*/
-static void error_message (void) {
- lua_Object al = lua_rawgetglobal("_ALERT");
- if (lua_isfunction(al)) { /* avoid error loop if _ALERT is not defined */
- char buff[600];
- sprintf(buff, "lua error: %.500s\n", luaL_check_string(1));
- lua_pushstring(buff);
- lua_callfunction(al);
- }
-}
-
-
-/*
-** If your system does not support "stdout", just remove this function.
-** If you need, you can define your own "print" function, following this
-** model but changing "fputs" to put the strings at a proper place
-** (a console window or a log file, for instance).
-*/
-#ifndef MAXPRINT
-#define MAXPRINT 40 /* arbitrary limit */
-#endif
-
-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);
-}
-
-
-static void luaB_tonumber (void) {
- int base = luaL_opt_int(2, 10);
- if (base == 10) { /* standard conversion */
- lua_Object o = lua_getparam(1);
- if (lua_isnumber(o)) lua_pushnumber(lua_getnumber(o));
- else lua_pushnil(); /* not a number */
- }
- else {
- char *s = luaL_check_string(1);
- long n;
- luaL_arg_check(0 <= base && base <= 36, 2, "base out of range");
- n = strtol(s, &s, base);
- while (isspace((unsigned char)*s)) s++; /* skip trailing spaces */
- if (*s) lua_pushnil(); /* invalid format: return nil */
- else lua_pushnumber(n);
- }
-}
-
-
-static void luaB_error (void) {
- lua_error(lua_getstring(lua_getparam(1)));
-}
-
-static void luaB_setglobal (void) {
- char *n = luaL_check_string(1);
- lua_Object value = luaL_nonnullarg(2);
- lua_pushobject(value);
- lua_setglobal(n);
- lua_pushobject(value); /* return given value */
-}
-
-static void luaB_rawsetglobal (void) {
- char *n = luaL_check_string(1);
- lua_Object value = luaL_nonnullarg(2);
- lua_pushobject(value);
- lua_rawsetglobal(n);
- lua_pushobject(value); /* return given value */
-}
-
-static void luaB_getglobal (void) {
- lua_pushobject(lua_getglobal(luaL_check_string(1)));
-}
-
-static void luaB_rawgetglobal (void) {
- lua_pushobject(lua_rawgetglobal(luaL_check_string(1)));
-}
-
-static void luaB_luatag (void) {
- 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_int(2));
- lua_pushobject(o); /* return first argument */
-}
-
-static void luaB_newtag (void) {
- lua_pushnumber(lua_newtag());
-}
-
-static void luaB_copytagmethods (void) {
- lua_pushnumber(lua_copytagmethods(luaL_check_int(1),
- luaL_check_int(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(luaL_check_int(1), luaL_check_string(2)));
-}
-
-static void luaB_gettagmethod (void) {
- lua_pushobject(lua_gettagmethod(luaL_check_int(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_int(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, s)) == 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) {
- lua_Object f = luaL_nonnullarg(1);
- Hash *arg = gethash(2);
- char *options = luaL_opt_string(3, "");
- lua_Object err = lua_getparam(4);
- int narg = (int)getnarg(arg);
- int i, status;
- if (err != LUA_NOOBJECT) { /* set new error method */
- lua_pushobject(err);
- err = lua_seterrormethod();
- }
- /* push arg[1...n] */
- luaD_checkstack(narg);
- for (i=0; i<narg; i++)
- *(L->stack.top++) = *luaH_getint(arg, i+1);
- status = lua_callfunction(f);
- if (err != LUA_NOOBJECT) { /* restore old error method */
- lua_pushobject(err);
- lua_seterrormethod();
- }
- if (status != 0) { /* error in call? */
- if (strchr(options, 'x')) {
- lua_pushnil();
- return; /* return nil to signal the error */
- }
- else
- lua_error(NULL);
- }
- else { /* no errors */
- if (strchr(options, 'p'))
- luaA_packresults();
- else
- luaA_passresults();
- }
-}
-
-
-static void luaB_nextvar (void) {
- TObject *o = luaA_Address(luaL_nonnullarg(1));
- TaggedString *g;
- if (ttype(o) == LUA_T_NIL)
- g = NULL;
- else {
- luaL_arg_check(ttype(o) == LUA_T_STRING, 1, "variable name expected");
- g = tsvalue(o);
- }
- if (!luaA_nextvar(g))
- lua_pushnil();
-}
-
-
-static void luaB_next (void) {
- Hash *a = gethash(1);
- TObject *k = luaA_Address(luaL_nonnullarg(2));
- int i = (ttype(k) == LUA_T_NIL) ? 0 : luaH_pos(a, k)+1;
- if (luaA_next(a, i) == 0)
- 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));
-}
-
-/* }====================================================== */
-
-
-
-/*
-** {======================================================
-** "Extra" functions
-** These functions can be written in Lua, so you can
-** delete them if you need a tiny Lua implementation.
-** If you delete them, remove their entries in array
-** "builtin_funcs".
-** =======================================================
-*/
-
-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_foreachi (void) {
- Hash *t = gethash(1);
- int i;
- int n = (int)getnarg(t);
- TObject f;
- /* 'f' cannot be a pointer to TObject, because it is on the stack, and the
- stack may be reallocated by the call. Moreover, some C compilers do not
- initialize structs, so we must do the assignment after the declaration */
- f = *luaA_Address(luaL_functionarg(2));
- 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_foreach (void) {
- Hash *a = gethash(1);
- int i;
- TObject f; /* see comment in 'foreachi' */
- f = *luaA_Address(luaL_functionarg(2));
- luaD_checkstack(3); /* for f, ref, and val */
- for (i=0; i<a->nhash; i++) {
- Node *nd = &(a->node[i]);
- if (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--; /* remove result */
- }
- }
-}
-
-
-static void luaB_foreachvar (void) {
- GCnode *g;
- TObject f; /* see comment in 'foreachi' */
- f = *luaA_Address(luaL_functionarg(1));
- luaD_checkstack(4); /* for extra var name, f, var name, and globalval */
- for (g = L->rootglobal.next; g; g = g->next) {
- TaggedString *s = (TaggedString *)g;
- if (s->u.s.globalval.ttype != LUA_T_NIL) {
- pushtagstring(s); /* keep (extra) s on stack to avoid GC */
- *(L->stack.top++) = f;
- pushtagstring(s);
- *(L->stack.top++) = s->u.s.globalval;
- luaD_calln(2, 1);
- if (ttype(L->stack.top-1) != LUA_T_NIL) {
- L->stack.top--;
- *(L->stack.top-1) = *L->stack.top; /* remove extra s */
- return;
- }
- L->stack.top-=2; /* remove result and extra s */
- }
- }
-}
-
-
-static void luaB_getn (void) {
- lua_pushnumber(getnarg(gethash(1)));
-}
-
-
-static void luaB_tinsert (void) {
- Hash *a = gethash(1);
- lua_Object v = lua_getparam(3);
- int n = (int)getnarg(a);
- int pos;
- if (v != LUA_NOOBJECT)
- pos = luaL_check_int(2);
- else { /* called with only 2 arguments */
- v = luaL_nonnullarg(2);
- pos = n+1;
- }
- luaV_setn(a, n+1); /* a.n = n+1 */
- for ( ;n>=pos; n--)
- luaH_move(a, n, n+1); /* a[n+1] = a[n] */
- luaH_setint(a, pos, luaA_Address(v)); /* a[pos] = v */
-}
-
-
-static void luaB_tremove (void) {
- Hash *a = gethash(1);
- int n = (int)getnarg(a);
- int pos = luaL_opt_int(2, n);
- if (n <= 0) return; /* table is "empty" */
- luaA_pushobject(luaH_getint(a, pos)); /* result = a[pos] */
- for ( ;pos<n; pos++)
- luaH_move(a, pos+1, pos); /* a[pos] = a[pos+1] */
- luaV_setn(a, n-1); /* a.n = n-1 */
- luaH_setint(a, n, &luaO_nilobject); /* a[n] = nil */
-}
-
-
-/* {
-** Quicksort
-*/
-
-static void swap (Hash *a, int i, int j) {
- TObject temp;
- temp = *luaH_getint(a, i);
- luaH_move(a, j, i);
- luaH_setint(a, j, &temp);
-}
-
-static int sort_comp (lua_Object f, TObject *a, TObject *b) {
- /* notice: the caller (auxsort) must check stack space */
- if (f != LUA_NOOBJECT) {
- *(L->stack.top) = *luaA_Address(f);
- *(L->stack.top+1) = *a;
- *(L->stack.top+2) = *b;
- L->stack.top += 3;
- luaD_calln(2, 1);
- }
- else { /* a < b? */
- *(L->stack.top) = *a;
- *(L->stack.top+1) = *b;
- L->stack.top += 2;
- luaV_comparison(LUA_T_NUMBER, LUA_T_NIL, LUA_T_NIL, IM_LT);
- }
- return ttype(--(L->stack.top)) != LUA_T_NIL;
-}
-
-static void auxsort (Hash *a, int l, int u, lua_Object f) {
- while (l < u) { /* for tail recursion */
- TObject *P;
- int i, j;
- /* sort elements a[l], a[(l+u)/2] and a[u] */
- if (sort_comp(f, luaH_getint(a, u), luaH_getint(a, l))) /* a[l]>a[u]? */
- swap(a, l, u);
- if (u-l == 1) break; /* only 2 elements */
- i = (l+u)/2;
- P = luaH_getint(a, i);
- if (sort_comp(f, P, luaH_getint(a, l))) /* a[l]>a[i]? */
- swap(a, l, i);
- else if (sort_comp(f, luaH_getint(a, u), P)) /* a[i]>a[u]? */
- swap(a, i, u);
- if (u-l == 2) break; /* only 3 elements */
- P = L->stack.top++;
- *P = *luaH_getint(a, i); /* save pivot on stack (for GC) */
- swap(a, i, u-1); /* put median element as pivot (a[u-1]) */
- /* a[l] <= P == a[u-1] <= a[u], only needs to sort from l+1 to u-2 */
- i = l; j = u-1;
- for (;;) {
- /* invariant: a[l..i] <= P <= a[j..u] */
- while (sort_comp(f, luaH_getint(a, ++i), P)) /* stop when a[i] >= P */
- if (i>u) lua_error("invalid order function for sorting");
- while (sort_comp(f, P, luaH_getint(a, --j))) /* stop when a[j] <= P */
- if (j<l) lua_error("invalid order function for sorting");
- if (j<i) break;
- swap(a, i, j);
- }
- swap(a, u-1, i); /* swap pivot (a[u-1]) with a[i] */
- L->stack.top--; /* remove pivot from stack */
- /* a[l..i-1] <= a[i] == P <= a[i+1..u] */
- /* adjust so that smaller "half" is in [j..i] and larger one in [l..u] */
- if (i-l < u-i) {
- j=l; i=i-1; l=i+2;
- }
- else {
- j=i+1; i=u; u=j-2;
- }
- auxsort(a, j, i, f); /* call recursively the smaller one */
- } /* repeat the routine for the larger one */
-}
-
-static void luaB_sort (void) {
- lua_Object t = lua_getparam(1);
- Hash *a = gethash(1);
- int n = (int)getnarg(a);
- lua_Object func = lua_getparam(2);
- luaL_arg_check(func == LUA_NOOBJECT || lua_isfunction(func), 2,
- "function expected");
- luaD_checkstack(4); /* for Pivot, f, a, b (sort_comp) */
- auxsort(a, 1, n, func);
- lua_pushobject(t);
-}
-
-/* }}===================================================== */
-
-
-/*
-** ====================================================== */
-
-
-
-#ifdef DEBUG
-/*
-** {======================================================
-** some DEBUG functions
-** =======================================================
-*/
-
-static void mem_query (void) {
- lua_pushnumber(totalmem);
- lua_pushnumber(numblocks);
-}
-
-
-static void query_strings (void) {
- lua_pushnumber(L->string_root[luaL_check_int(1)].nuse);
-}
-
-
-static void countlist (void) {
- char *s = luaL_check_string(1);
- GCnode *l = (s[0]=='t') ? L->roottable.next : (s[0]=='c') ? L->rootcl.next :
- (s[0]=='p') ? L->rootproto.next : L->rootglobal.next;
- int i=0;
- while (l) {
- i++;
- l = l->next;
- }
- lua_pushnumber(i);
-}
-
-
-static void testC (void) {
-#define getnum(s) ((*s++) - '0')
-#define getname(s) (nome[0] = *s++, nome)
-
- static int locks[10];
- lua_Object reg[10];
- char nome[2];
- char *s = luaL_check_string(1);
- nome[1] = 0;
- for (;;) {
- switch (*s++) {
- case '0': case '1': case '2': case '3': case '4':
- case '5': case '6': case '7': case '8': case '9':
- lua_pushnumber(*(s-1) - '0');
- break;
-
- case 'c': reg[getnum(s)] = lua_createtable(); break;
- case 'C': { lua_CFunction f = lua_getcfunction(lua_getglobal(getname(s)));
- lua_pushcclosure(f, getnum(s));
- break;
- }
- case 'P': reg[getnum(s)] = lua_pop(); break;
- case 'g': { int n=getnum(s); reg[n]=lua_getglobal(getname(s)); break; }
- case 'G': { int n = getnum(s);
- reg[n] = lua_rawgetglobal(getname(s));
- break;
- }
- case 'l': locks[getnum(s)] = lua_ref(1); break;
- case 'L': locks[getnum(s)] = lua_ref(0); break;
- case 'r': { int n=getnum(s); reg[n]=lua_getref(locks[getnum(s)]); break; }
- case 'u': lua_unref(locks[getnum(s)]); break;
- case 'p': { int n = getnum(s); reg[n] = lua_getparam(getnum(s)); break; }
- case '=': lua_setglobal(getname(s)); break;
- case 's': lua_pushstring(getname(s)); break;
- case 'o': lua_pushobject(reg[getnum(s)]); break;
- case 'f': lua_call(getname(s)); break;
- case 'i': reg[getnum(s)] = lua_gettable(); break;
- case 'I': reg[getnum(s)] = lua_rawgettable(); break;
- case 't': lua_settable(); break;
- case 'T': lua_rawsettable(); break;
- case 'N' : lua_pushstring(lua_nextvar(lua_getstring(reg[getnum(s)])));
- break;
- case 'n' : { int n=getnum(s);
- n=lua_next(reg[n], (int)lua_getnumber(reg[getnum(s)]));
- lua_pushnumber(n); break;
- }
- default: luaL_verror("unknown command in `testC': %c", *(s-1));
- }
- if (*s == 0) return;
- if (*s++ != ' ') lua_error("missing ` ' between commands in `testC'");
- }
-}
-
-/* }====================================================== */
-#endif
-
-
-
-static struct luaL_reg builtin_funcs[] = {
-#ifdef LUA_COMPAT2_5
- {"setfallback", luaT_setfallback},
-#endif
-#ifdef DEBUG
- {"testC", testC},
- {"totalmem", mem_query},
- {"count", countlist},
- {"querystr", query_strings},
-#endif
- {"_ALERT", luaB_alert},
- {"_ERRORMESSAGE", error_message},
- {"call", luaB_call},
- {"collectgarbage", luaB_collectgarbage},
- {"copytagmethods", luaB_copytagmethods},
- {"dofile", luaB_dofile},
- {"dostring", luaB_dostring},
- {"error", luaB_error},
- {"getglobal", luaB_getglobal},
- {"gettagmethod", luaB_gettagmethod},
- {"newtag", luaB_newtag},
- {"next", luaB_next},
- {"nextvar", luaB_nextvar},
- {"print", luaB_print},
- {"rawgetglobal", luaB_rawgetglobal},
- {"rawgettable", luaB_rawgettable},
- {"rawsetglobal", luaB_rawsetglobal},
- {"rawsettable", luaB_rawsettable},
- {"seterrormethod", luaB_seterrormethod},
- {"setglobal", luaB_setglobal},
- {"settag", luaB_settag},
- {"settagmethod", luaB_settagmethod},
- {"tag", luaB_luatag},
- {"tonumber", luaB_tonumber},
- {"tostring", luaB_tostring},
- {"type", luaB_type},
- /* "Extra" functions */
- {"assert", luaB_assert},
- {"foreach", luaB_foreach},
- {"foreachi", luaB_foreachi},
- {"foreachvar", luaB_foreachvar},
- {"getn", luaB_getn},
- {"sort", luaB_sort},
- {"tinsert", luaB_tinsert},
- {"tremove", luaB_tremove}
-};
-
-
-#define INTFUNCSIZE (sizeof(builtin_funcs)/sizeof(builtin_funcs[0]))
-
-
-void luaB_predefine (void) {
- /* pre-register mem error messages, to avoid loop when error arises */
- luaS_newfixedstring(tableEM);
- luaS_newfixedstring(memEM);
- luaL_openlib(builtin_funcs, (sizeof(builtin_funcs)/sizeof(builtin_funcs[0])));
- lua_pushstring(LUA_VERSION);
- lua_setglobal("_VERSION");
-}
-
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