forked from KolibriOS/kolibrios
690 lines
16 KiB
C
690 lines
16 KiB
C
/*
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** $Id: lbaselib.c,v 1.273 2011/11/30 13:03:24 roberto Exp $
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** Basic library
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** See Copyright Notice in lua.h
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*/
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#include <ctype.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#define lbaselib_c
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#define LUA_LIB
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#include "lua.h"
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#include "lauxlib.h"
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#include "lualib.h"
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#include "kolibri.h"
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#include "console.c"
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//KOS console
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static int luaB__copen (lua_State *L){
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CONSOLE_INIT("Lua 5.2.0");
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return 0;
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}
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static int luaB__cclose (lua_State *L){
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_exit2(0);
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return 0;
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}
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static int luaB__cprintf (lua_State *L){
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int n = lua_gettop(L); /* number of arguments */
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int i;
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const char * s;
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int r[n];
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lua_getglobal(L, "tostring");
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for (i=1; i<=n; i++) {
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lua_pushvalue(L, -1); /* function to be called */
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lua_pushvalue(L, i); /* value to print */
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lua_call(L, 1, 1);
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s = lua_tostring(L, -1);
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kprintf ("%s",s);
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lua_pop(L, 1); /* pop result */
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}
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return 0;
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}
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static int luaB__cgets (lua_State *L){
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size_t nr; /* number of chars actually read */
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char *p;
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luaL_Buffer b;
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luaL_buffinit(L, &b);
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p = luaL_prepbuffsize(&b, 255); /* prepare buffer to read whole block */
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kgets(p, 255);
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nr = sizeof(p); /* try to read 'n' chars */
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luaL_addsize(&b, nr);
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luaL_pushresult(&b); /* close buffer */
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return (nr > 0); /* true iff read something */
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}
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//KolibriOS
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static int luaB__sysexit (lua_State *L){
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kol_exit();
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return 0;
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}
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static int luaB__paintstart (lua_State *L){
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kol_paint_start();
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return 0;
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}
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static int luaB__paintend (lua_State *L){
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kol_paint_end();
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return 0;
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}
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static int luaB__checkevent (lua_State *L){
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lua_pushnumber(L, kol_event_check());
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return 1;
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}
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static int luaB__waitevent (lua_State *L){
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lua_pushnumber(L, kol_event_wait());
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return 1;
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}
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static int luaB__getkey (lua_State *L){
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lua_pushnumber(L, kol_key_get());
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return 1;
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}
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static int luaB__getbutton (lua_State *L){
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lua_pushnumber(L, kol_btn_get());
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return 1;
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}
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static int luaB__systime (lua_State *L){
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lua_pushnumber(L, kol_system_time_get());
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return 1;
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}
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static int luaB__sysdate (lua_State *L){
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lua_pushnumber(L, kol_system_date_get());
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return 1;
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}
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static int luaB__window (lua_State *L){
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int n = lua_gettop(L); /* number of arguments */
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int i;
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const char * s;
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int r[n];
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lua_getglobal(L, "tostring");
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for (i=1; i<=n; i++) {
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lua_pushvalue(L, -1); /* function to be called */
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lua_pushvalue(L, i); /* value to print */
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lua_call(L, 1, 1);
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s = lua_tostring(L, -1);
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r[i]=atoi(s);
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lua_pop(L, 1); /* pop result */
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}
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kol_wnd_define (r[1],r[2],r[3],r[4],r[5]);
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return 0;
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}
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static int luaB__makebutton (lua_State *L){
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int n = lua_gettop(L); /* number of arguments */
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int i;
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const char * s;
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int r[n];
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lua_getglobal(L, "tostring");
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for (i=1; i<=n; i++) {
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lua_pushvalue(L, -1); /* function to be called */
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lua_pushvalue(L, i); /* value to print */
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lua_call(L, 1, 1);
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s = lua_tostring(L, -1);
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r[i]=atoi(s);
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lua_pop(L, 1); /* pop result */
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}
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kol_btn_define (r[1],r[2],r[3],r[4],r[5],r[6]);
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return 0;
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}
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static int luaB__textout (lua_State *L){
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int n = lua_gettop(L); /* number of arguments */
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int i;
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const char * s;
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int r[n];
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lua_getglobal(L, "tostring");
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for (i=1; i<=n; i++) {
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lua_pushvalue(L, -1); /* function to be called */
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lua_pushvalue(L, i); /* value to print */
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lua_call(L, 1, 1);
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s = lua_tostring(L, -1);
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r[i]=atoi(s);
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lua_pop(L, 1); /* pop result */
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}
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kol_paint_string (r[1],r[2],r[3],s, strlen(s));
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return 0;
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}
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/////exp
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static int luaB__drawpixel (lua_State *L){
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int n = lua_gettop(L); /* number of arguments */
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int i;
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const char * s;
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int r[n];
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lua_getglobal(L, "tostring");
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for (i=1; i<=n; i++) {
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lua_pushvalue(L, -1); /* function to be called */
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lua_pushvalue(L, i); /* value to print */
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lua_call(L, 1, 1);
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s = lua_tostring(L, -1);
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r[i]=atoi(s);
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lua_pop(L, 1); /* pop result */
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}
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kol_paint_pixel (r[1],r[2],r[3]);
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return 0;
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}
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static int luaB__drawline (lua_State *L){
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int n = lua_gettop(L); /* number of arguments */
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int i;
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const char * s;
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int r[n];
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lua_getglobal(L, "tostring");
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for (i=1; i<=n; i++) {
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lua_pushvalue(L, -1); /* function to be called */
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lua_pushvalue(L, i); /* value to print */
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lua_call(L, 1, 1);
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s = lua_tostring(L, -1);
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r[i]=atoi(s);
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lua_pop(L, 1); /* pop result */
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}
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kol_paint_line (r[1],r[2],r[3],r[4],r[5]);
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return 0;
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}
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//KolibriOS
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static int luaB_print (lua_State *L) {
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int n = lua_gettop(L); /* number of arguments */
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int i;
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lua_getglobal(L, "tostring");
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for (i=1; i<=n; i++) {
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const char *s;
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size_t l;
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lua_pushvalue(L, -1); /* function to be called */
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lua_pushvalue(L, i); /* value to print */
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lua_call(L, 1, 1);
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s = lua_tolstring(L, -1, &l); /* get result */
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if (s == NULL)
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return luaL_error(L,
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LUA_QL("tostring") " must return a string to " LUA_QL("print"));
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if (i>1) luai_writestring("\t", 1);
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luai_writestring(s, l);
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lua_pop(L, 1); /* pop result */
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}
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luai_writeline();
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return 0;
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}
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#define SPACECHARS " \f\n\r\t\v"
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static int luaB_tonumber (lua_State *L) {
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if (lua_isnoneornil(L, 2)) { /* standard conversion */
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int isnum;
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lua_Number n = lua_tonumberx(L, 1, &isnum);
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if (isnum) {
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lua_pushnumber(L, n);
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return 1;
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} /* else not a number; must be something */
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luaL_checkany(L, 1);
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}
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else {
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size_t l;
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const char *s = luaL_checklstring(L, 1, &l);
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const char *e = s + l; /* end point for 's' */
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int base = luaL_checkint(L, 2);
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int neg = 0;
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luaL_argcheck(L, 2 <= base && base <= 36, 2, "base out of range");
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s += strspn(s, SPACECHARS); /* skip initial spaces */
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if (*s == '-') { s++; neg = 1; } /* handle signal */
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else if (*s == '+') s++;
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if (isalnum((unsigned char)*s)) {
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lua_Number n = 0;
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do {
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int digit = (isdigit((unsigned char)*s)) ? *s - '0'
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: toupper((unsigned char)*s) - 'A' + 10;
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if (digit >= base) break; /* invalid numeral; force a fail */
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n = n * (lua_Number)base + (lua_Number)digit;
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s++;
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} while (isalnum((unsigned char)*s));
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s += strspn(s, SPACECHARS); /* skip trailing spaces */
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if (s == e) { /* no invalid trailing characters? */
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lua_pushnumber(L, (neg) ? -n : n);
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return 1;
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} /* else not a number */
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} /* else not a number */
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}
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lua_pushnil(L); /* not a number */
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return 1;
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}
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static int luaB_error (lua_State *L) {
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int level = luaL_optint(L, 2, 1);
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lua_settop(L, 1);
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if (lua_isstring(L, 1) && level > 0) { /* add extra information? */
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luaL_where(L, level);
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lua_pushvalue(L, 1);
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lua_concat(L, 2);
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}
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return lua_error(L);
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}
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static int luaB_getmetatable (lua_State *L) {
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luaL_checkany(L, 1);
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if (!lua_getmetatable(L, 1)) {
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lua_pushnil(L);
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return 1; /* no metatable */
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}
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luaL_getmetafield(L, 1, "__metatable");
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return 1; /* returns either __metatable field (if present) or metatable */
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}
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static int luaB_setmetatable (lua_State *L) {
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int t = lua_type(L, 2);
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luaL_checktype(L, 1, LUA_TTABLE);
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luaL_argcheck(L, t == LUA_TNIL || t == LUA_TTABLE, 2,
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"nil or table expected");
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if (luaL_getmetafield(L, 1, "__metatable"))
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return luaL_error(L, "cannot change a protected metatable");
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lua_settop(L, 2);
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lua_setmetatable(L, 1);
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return 1;
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}
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static int luaB_rawequal (lua_State *L) {
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luaL_checkany(L, 1);
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luaL_checkany(L, 2);
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lua_pushboolean(L, lua_rawequal(L, 1, 2));
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return 1;
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}
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static int luaB_rawlen (lua_State *L) {
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int t = lua_type(L, 1);
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luaL_argcheck(L, t == LUA_TTABLE || t == LUA_TSTRING, 1,
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"table or string expected");
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lua_pushinteger(L, lua_rawlen(L, 1));
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return 1;
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}
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static int luaB_rawget (lua_State *L) {
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luaL_checktype(L, 1, LUA_TTABLE);
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luaL_checkany(L, 2);
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lua_settop(L, 2);
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lua_rawget(L, 1);
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return 1;
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}
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static int luaB_rawset (lua_State *L) {
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luaL_checktype(L, 1, LUA_TTABLE);
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luaL_checkany(L, 2);
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luaL_checkany(L, 3);
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lua_settop(L, 3);
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lua_rawset(L, 1);
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return 1;
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}
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static int luaB_collectgarbage (lua_State *L) {
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static const char *const opts[] = {"stop", "restart", "collect",
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"count", "step", "setpause", "setstepmul",
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"setmajorinc", "isrunning", "generational", "incremental", NULL};
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static const int optsnum[] = {LUA_GCSTOP, LUA_GCRESTART, LUA_GCCOLLECT,
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LUA_GCCOUNT, LUA_GCSTEP, LUA_GCSETPAUSE, LUA_GCSETSTEPMUL,
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LUA_GCSETMAJORINC, LUA_GCISRUNNING, LUA_GCGEN, LUA_GCINC};
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int o = optsnum[luaL_checkoption(L, 1, "collect", opts)];
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int ex = luaL_optint(L, 2, 0);
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int res = lua_gc(L, o, ex);
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switch (o) {
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case LUA_GCCOUNT: {
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int b = lua_gc(L, LUA_GCCOUNTB, 0);
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lua_pushnumber(L, res + ((lua_Number)b/1024));
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lua_pushinteger(L, b);
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return 2;
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}
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case LUA_GCSTEP: case LUA_GCISRUNNING: {
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lua_pushboolean(L, res);
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return 1;
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}
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default: {
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lua_pushinteger(L, res);
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return 1;
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}
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}
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}
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static int luaB_type (lua_State *L) {
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luaL_checkany(L, 1);
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lua_pushstring(L, luaL_typename(L, 1));
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return 1;
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}
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static int pairsmeta (lua_State *L, const char *method, int iszero,
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lua_CFunction iter) {
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if (!luaL_getmetafield(L, 1, method)) { /* no metamethod? */
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luaL_checktype(L, 1, LUA_TTABLE); /* argument must be a table */
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lua_pushcfunction(L, iter); /* will return generator, */
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lua_pushvalue(L, 1); /* state, */
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if (iszero) lua_pushinteger(L, 0); /* and initial value */
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else lua_pushnil(L);
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}
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else {
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lua_pushvalue(L, 1); /* argument 'self' to metamethod */
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lua_call(L, 1, 3); /* get 3 values from metamethod */
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}
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return 3;
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}
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static int luaB_next (lua_State *L) {
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luaL_checktype(L, 1, LUA_TTABLE);
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lua_settop(L, 2); /* create a 2nd argument if there isn't one */
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if (lua_next(L, 1))
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return 2;
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else {
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lua_pushnil(L);
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return 1;
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}
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}
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static int luaB_pairs (lua_State *L) {
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return pairsmeta(L, "__pairs", 0, luaB_next);
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}
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static int ipairsaux (lua_State *L) {
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int i = luaL_checkint(L, 2);
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luaL_checktype(L, 1, LUA_TTABLE);
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i++; /* next value */
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lua_pushinteger(L, i);
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lua_rawgeti(L, 1, i);
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return (lua_isnil(L, -1)) ? 1 : 2;
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}
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static int luaB_ipairs (lua_State *L) {
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return pairsmeta(L, "__ipairs", 1, ipairsaux);
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}
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static int load_aux (lua_State *L, int status) {
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if (status == LUA_OK)
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return 1;
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else {
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lua_pushnil(L);
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lua_insert(L, -2); /* put before error message */
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return 2; /* return nil plus error message */
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}
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}
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static int luaB_loadfile (lua_State *L) {
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const char *fname = luaL_optstring(L, 1, NULL);
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const char *mode = luaL_optstring(L, 2, NULL);
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int env = !lua_isnone(L, 3); /* 'env' parameter? */
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int status = luaL_loadfilex(L, fname, mode);
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if (status == LUA_OK && env) { /* 'env' parameter? */
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lua_pushvalue(L, 3);
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lua_setupvalue(L, -2, 1); /* set it as 1st upvalue of loaded chunk */
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}
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return load_aux(L, status);
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}
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/*
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** {======================================================
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** Generic Read function
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** =======================================================
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*/
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/*
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** reserved slot, above all arguments, to hold a copy of the returned
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** string to avoid it being collected while parsed. 'load' has four
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** optional arguments (chunk, source name, mode, and environment).
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*/
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#define RESERVEDSLOT 5
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/*
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** Reader for generic `load' function: `lua_load' uses the
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** stack for internal stuff, so the reader cannot change the
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** stack top. Instead, it keeps its resulting string in a
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** reserved slot inside the stack.
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*/
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static const char *generic_reader (lua_State *L, void *ud, size_t *size) {
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(void)(ud); /* not used */
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luaL_checkstack(L, 2, "too many nested functions");
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lua_pushvalue(L, 1); /* get function */
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lua_call(L, 0, 1); /* call it */
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if (lua_isnil(L, -1)) {
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*size = 0;
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return NULL;
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}
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else if (!lua_isstring(L, -1))
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luaL_error(L, "reader function must return a string");
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lua_replace(L, RESERVEDSLOT); /* save string in reserved slot */
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return lua_tolstring(L, RESERVEDSLOT, size);
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}
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static int luaB_load (lua_State *L) {
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int status;
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size_t l;
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int top = lua_gettop(L);
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const char *s = lua_tolstring(L, 1, &l);
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const char *mode = luaL_optstring(L, 3, "bt");
|
|
if (s != NULL) { /* loading a string? */
|
|
const char *chunkname = luaL_optstring(L, 2, s);
|
|
status = luaL_loadbufferx(L, s, l, chunkname, mode);
|
|
}
|
|
else { /* loading from a reader function */
|
|
const char *chunkname = luaL_optstring(L, 2, "=(load)");
|
|
luaL_checktype(L, 1, LUA_TFUNCTION);
|
|
lua_settop(L, RESERVEDSLOT); /* create reserved slot */
|
|
status = lua_load(L, generic_reader, NULL, chunkname, mode);
|
|
}
|
|
if (status == LUA_OK && top >= 4) { /* is there an 'env' argument */
|
|
lua_pushvalue(L, 4); /* environment for loaded function */
|
|
lua_setupvalue(L, -2, 1); /* set it as 1st upvalue */
|
|
}
|
|
return load_aux(L, status);
|
|
}
|
|
|
|
/* }====================================================== */
|
|
|
|
|
|
static int dofilecont (lua_State *L) {
|
|
return lua_gettop(L) - 1;
|
|
}
|
|
|
|
|
|
static int luaB_dofile (lua_State *L) {
|
|
const char *fname = luaL_optstring(L, 1, NULL);
|
|
lua_settop(L, 1);
|
|
if (luaL_loadfile(L, fname) != LUA_OK) lua_error(L);
|
|
lua_callk(L, 0, LUA_MULTRET, 0, dofilecont);
|
|
return dofilecont(L);
|
|
}
|
|
|
|
|
|
static int luaB_assert (lua_State *L) {
|
|
if (!lua_toboolean(L, 1))
|
|
return luaL_error(L, "%s", luaL_optstring(L, 2, "assertion failed!"));
|
|
return lua_gettop(L);
|
|
}
|
|
|
|
|
|
static int luaB_select (lua_State *L) {
|
|
int n = lua_gettop(L);
|
|
if (lua_type(L, 1) == LUA_TSTRING && *lua_tostring(L, 1) == '#') {
|
|
lua_pushinteger(L, n-1);
|
|
return 1;
|
|
}
|
|
else {
|
|
int i = luaL_checkint(L, 1);
|
|
if (i < 0) i = n + i;
|
|
else if (i > n) i = n;
|
|
luaL_argcheck(L, 1 <= i, 1, "index out of range");
|
|
return n - i;
|
|
}
|
|
}
|
|
|
|
|
|
static int finishpcall (lua_State *L, int status) {
|
|
if (!lua_checkstack(L, 1)) { /* no space for extra boolean? */
|
|
lua_settop(L, 0); /* create space for return values */
|
|
lua_pushboolean(L, 0);
|
|
lua_pushstring(L, "stack overflow");
|
|
return 2; /* return false, msg */
|
|
}
|
|
lua_pushboolean(L, status); /* first result (status) */
|
|
lua_replace(L, 1); /* put first result in first slot */
|
|
return lua_gettop(L);
|
|
}
|
|
|
|
|
|
static int pcallcont (lua_State *L) {
|
|
int status = lua_getctx(L, NULL);
|
|
return finishpcall(L, (status == LUA_YIELD));
|
|
}
|
|
|
|
|
|
static int luaB_pcall (lua_State *L) {
|
|
int status;
|
|
luaL_checkany(L, 1);
|
|
lua_pushnil(L);
|
|
lua_insert(L, 1); /* create space for status result */
|
|
status = lua_pcallk(L, lua_gettop(L) - 2, LUA_MULTRET, 0, 0, pcallcont);
|
|
return finishpcall(L, (status == LUA_OK));
|
|
}
|
|
|
|
|
|
static int luaB_xpcall (lua_State *L) {
|
|
int status;
|
|
int n = lua_gettop(L);
|
|
luaL_argcheck(L, n >= 2, 2, "value expected");
|
|
lua_pushvalue(L, 1); /* exchange function... */
|
|
lua_copy(L, 2, 1); /* ...and error handler */
|
|
lua_replace(L, 2);
|
|
status = lua_pcallk(L, n - 2, LUA_MULTRET, 1, 0, pcallcont);
|
|
return finishpcall(L, (status == LUA_OK));
|
|
}
|
|
|
|
|
|
static int luaB_tostring (lua_State *L) {
|
|
luaL_checkany(L, 1);
|
|
luaL_tolstring(L, 1, NULL);
|
|
return 1;
|
|
}
|
|
|
|
|
|
static const luaL_Reg base_funcs[] = {
|
|
{"assert", luaB_assert},
|
|
{"collectgarbage", luaB_collectgarbage},
|
|
{"dofile", luaB_dofile},
|
|
{"error", luaB_error},
|
|
{"getmetatable", luaB_getmetatable},
|
|
{"ipairs", luaB_ipairs},
|
|
{"loadfile", luaB_loadfile},
|
|
{"load", luaB_load},
|
|
#if defined(LUA_COMPAT_LOADSTRING)
|
|
{"loadstring", luaB_load},
|
|
#endif
|
|
{"next", luaB_next},
|
|
{"pairs", luaB_pairs},
|
|
{"pcall", luaB_pcall},
|
|
{"print", luaB_print},
|
|
{"rawequal", luaB_rawequal},
|
|
{"rawlen", luaB_rawlen},
|
|
{"rawget", luaB_rawget},
|
|
{"rawset", luaB_rawset},
|
|
{"select", luaB_select},
|
|
{"setmetatable", luaB_setmetatable},
|
|
{"tonumber", luaB_tonumber},
|
|
{"tostring", luaB_tostring},
|
|
{"type", luaB_type},
|
|
{"xpcall", luaB_xpcall},
|
|
{"sysexit", luaB__sysexit},
|
|
{"paintstart", luaB__paintstart},
|
|
{"paintend", luaB__paintend},
|
|
{"window", luaB__window},
|
|
{"checkevent", luaB__checkevent},
|
|
{"waitevent", luaB__waitevent},
|
|
{"getkey", luaB__getkey},
|
|
{"getbutton", luaB__getbutton},
|
|
{"makebutton", luaB__makebutton},
|
|
{"textout", luaB__textout},
|
|
{"sysdate", luaB__sysdate},
|
|
{"systime", luaB__systime},
|
|
{"drawline", luaB__drawline},
|
|
{"drawpixel", luaB__drawpixel},
|
|
{"copen", luaB__copen},
|
|
{"cclose", luaB__cclose},
|
|
{"cprintf", luaB__cprintf},
|
|
{"cgets", luaB__cgets},
|
|
{NULL, NULL}
|
|
};
|
|
|
|
|
|
LUAMOD_API int luaopen_base (lua_State *L) {
|
|
/* set global _G */
|
|
lua_pushglobaltable(L);
|
|
lua_pushglobaltable(L);
|
|
lua_setfield(L, -2, "_G");
|
|
/* open lib into global table */
|
|
luaL_setfuncs(L, base_funcs, 0);
|
|
lua_pushliteral(L, LUA_VERSION);
|
|
lua_setfield(L, -2, "_VERSION"); /* set global _VERSION */
|
|
return 1;
|
|
}
|
|
|