0,0 → 1,689 |
/* |
** $Id: lbaselib.c,v 1.273 2011/11/30 13:03:24 roberto Exp $ |
** Basic library |
** See Copyright Notice in lua.h |
*/ |
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#include <ctype.h> |
#include <stdio.h> |
#include <stdlib.h> |
#include <string.h> |
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#define lbaselib_c |
#define LUA_LIB |
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#include "lua.h" |
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#include "lauxlib.h" |
#include "lualib.h" |
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#include "kolibri.h" |
#include "console.c" |
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//KOS console |
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static int luaB__copen (lua_State *L){ |
CONSOLE_INIT("Lua 5.2.0"); |
return 0; |
} |
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static int luaB__cclose (lua_State *L){ |
_exit2(0); |
return 0; |
} |
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static int luaB__cprintf (lua_State *L){ |
int n = lua_gettop(L); /* number of arguments */ |
int i; |
const char * s; |
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int r[n]; |
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 */ |
lua_pushvalue(L, i); /* value to print */ |
lua_call(L, 1, 1); |
s = lua_tostring(L, -1); |
kprintf ("%s",s); |
lua_pop(L, 1); /* pop result */ |
} |
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return 0; |
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} |
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static int luaB__cgets (lua_State *L){ |
size_t nr; /* number of chars actually read */ |
char *p; |
luaL_Buffer b; |
luaL_buffinit(L, &b); |
p = luaL_prepbuffsize(&b, 255); /* prepare buffer to read whole block */ |
kgets(p, 255); |
nr = sizeof(p); /* try to read 'n' chars */ |
luaL_addsize(&b, nr); |
luaL_pushresult(&b); /* close buffer */ |
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){ |
kol_exit(); |
return 0; |
} |
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static int luaB__paintstart (lua_State *L){ |
kol_paint_start(); |
return 0; |
} |
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static int luaB__paintend (lua_State *L){ |
kol_paint_end(); |
return 0; |
} |
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static int luaB__checkevent (lua_State *L){ |
lua_pushnumber(L, kol_event_check()); |
return 1; |
} |
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static int luaB__waitevent (lua_State *L){ |
lua_pushnumber(L, kol_event_wait()); |
return 1; |
} |
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static int luaB__getkey (lua_State *L){ |
lua_pushnumber(L, kol_key_get()); |
return 1; |
} |
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static int luaB__getbutton (lua_State *L){ |
lua_pushnumber(L, kol_btn_get()); |
return 1; |
} |
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static int luaB__systime (lua_State *L){ |
lua_pushnumber(L, kol_system_time_get()); |
return 1; |
} |
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static int luaB__sysdate (lua_State *L){ |
lua_pushnumber(L, kol_system_date_get()); |
return 1; |
} |
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static int luaB__window (lua_State *L){ |
int n = lua_gettop(L); /* number of arguments */ |
int i; |
const char * s; |
int r[n]; |
lua_getglobal(L, "tostring"); |
for (i=1; i<=n; i++) { |
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lua_pushvalue(L, -1); /* function to be called */ |
lua_pushvalue(L, i); /* value to print */ |
lua_call(L, 1, 1); |
s = lua_tostring(L, -1); |
r[i]=atoi(s); |
lua_pop(L, 1); /* pop result */ |
} |
kol_wnd_define (r[1],r[2],r[3],r[4],r[5]); |
return 0; |
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} |
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static int luaB__makebutton (lua_State *L){ |
int n = lua_gettop(L); /* number of arguments */ |
int i; |
const char * s; |
int r[n]; |
lua_getglobal(L, "tostring"); |
for (i=1; i<=n; i++) { |
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lua_pushvalue(L, -1); /* function to be called */ |
lua_pushvalue(L, i); /* value to print */ |
lua_call(L, 1, 1); |
s = lua_tostring(L, -1); |
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r[i]=atoi(s); |
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lua_pop(L, 1); /* pop result */ |
} |
kol_btn_define (r[1],r[2],r[3],r[4],r[5],r[6]); |
return 0; |
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} |
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static int luaB__textout (lua_State *L){ |
int n = lua_gettop(L); /* number of arguments */ |
int i; |
const char * s; |
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int r[n]; |
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 */ |
lua_pushvalue(L, i); /* value to print */ |
lua_call(L, 1, 1); |
s = lua_tostring(L, -1); |
r[i]=atoi(s); |
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lua_pop(L, 1); /* pop result */ |
} |
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kol_paint_string (r[1],r[2],r[3],s, strlen(s)); |
return 0; |
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} |
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/////exp |
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static int luaB__drawpixel (lua_State *L){ |
int n = lua_gettop(L); /* number of arguments */ |
int i; |
const char * s; |
int r[n]; |
lua_getglobal(L, "tostring"); |
for (i=1; i<=n; i++) { |
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lua_pushvalue(L, -1); /* function to be called */ |
lua_pushvalue(L, i); /* value to print */ |
lua_call(L, 1, 1); |
s = lua_tostring(L, -1); |
r[i]=atoi(s); |
lua_pop(L, 1); /* pop result */ |
} |
kol_paint_pixel (r[1],r[2],r[3]); |
return 0; |
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} |
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static int luaB__drawline (lua_State *L){ |
int n = lua_gettop(L); /* number of arguments */ |
int i; |
const char * s; |
int r[n]; |
lua_getglobal(L, "tostring"); |
for (i=1; i<=n; i++) { |
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lua_pushvalue(L, -1); /* function to be called */ |
lua_pushvalue(L, i); /* value to print */ |
lua_call(L, 1, 1); |
s = lua_tostring(L, -1); |
r[i]=atoi(s); |
lua_pop(L, 1); /* pop result */ |
} |
kol_paint_line (r[1],r[2],r[3],r[4],r[5]); |
return 0; |
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} |
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//KolibriOS |
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static int luaB_print (lua_State *L) { |
int n = lua_gettop(L); /* number of arguments */ |
int i; |
lua_getglobal(L, "tostring"); |
for (i=1; i<=n; i++) { |
const char *s; |
size_t l; |
lua_pushvalue(L, -1); /* function to be called */ |
lua_pushvalue(L, i); /* value to print */ |
lua_call(L, 1, 1); |
s = lua_tolstring(L, -1, &l); /* get result */ |
if (s == NULL) |
return luaL_error(L, |
LUA_QL("tostring") " must return a string to " LUA_QL("print")); |
if (i>1) luai_writestring("\t", 1); |
luai_writestring(s, l); |
lua_pop(L, 1); /* pop result */ |
} |
luai_writeline(); |
return 0; |
} |
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#define SPACECHARS " \f\n\r\t\v" |
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static int luaB_tonumber (lua_State *L) { |
if (lua_isnoneornil(L, 2)) { /* standard conversion */ |
int isnum; |
lua_Number n = lua_tonumberx(L, 1, &isnum); |
if (isnum) { |
lua_pushnumber(L, n); |
return 1; |
} /* else not a number; must be something */ |
luaL_checkany(L, 1); |
} |
else { |
size_t l; |
const char *s = luaL_checklstring(L, 1, &l); |
const char *e = s + l; /* end point for 's' */ |
int base = luaL_checkint(L, 2); |
int neg = 0; |
luaL_argcheck(L, 2 <= base && base <= 36, 2, "base out of range"); |
s += strspn(s, SPACECHARS); /* skip initial spaces */ |
if (*s == '-') { s++; neg = 1; } /* handle signal */ |
else if (*s == '+') s++; |
if (isalnum((unsigned char)*s)) { |
lua_Number n = 0; |
do { |
int digit = (isdigit((unsigned char)*s)) ? *s - '0' |
: toupper((unsigned char)*s) - 'A' + 10; |
if (digit >= base) break; /* invalid numeral; force a fail */ |
n = n * (lua_Number)base + (lua_Number)digit; |
s++; |
} while (isalnum((unsigned char)*s)); |
s += strspn(s, SPACECHARS); /* skip trailing spaces */ |
if (s == e) { /* no invalid trailing characters? */ |
lua_pushnumber(L, (neg) ? -n : n); |
return 1; |
} /* else not a number */ |
} /* else not a number */ |
} |
lua_pushnil(L); /* not a number */ |
return 1; |
} |
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static int luaB_error (lua_State *L) { |
int level = luaL_optint(L, 2, 1); |
lua_settop(L, 1); |
if (lua_isstring(L, 1) && level > 0) { /* add extra information? */ |
luaL_where(L, level); |
lua_pushvalue(L, 1); |
lua_concat(L, 2); |
} |
return lua_error(L); |
} |
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static int luaB_getmetatable (lua_State *L) { |
luaL_checkany(L, 1); |
if (!lua_getmetatable(L, 1)) { |
lua_pushnil(L); |
return 1; /* no metatable */ |
} |
luaL_getmetafield(L, 1, "__metatable"); |
return 1; /* returns either __metatable field (if present) or metatable */ |
} |
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static int luaB_setmetatable (lua_State *L) { |
int t = lua_type(L, 2); |
luaL_checktype(L, 1, LUA_TTABLE); |
luaL_argcheck(L, t == LUA_TNIL || t == LUA_TTABLE, 2, |
"nil or table expected"); |
if (luaL_getmetafield(L, 1, "__metatable")) |
return luaL_error(L, "cannot change a protected metatable"); |
lua_settop(L, 2); |
lua_setmetatable(L, 1); |
return 1; |
} |
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static int luaB_rawequal (lua_State *L) { |
luaL_checkany(L, 1); |
luaL_checkany(L, 2); |
lua_pushboolean(L, lua_rawequal(L, 1, 2)); |
return 1; |
} |
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static int luaB_rawlen (lua_State *L) { |
int t = lua_type(L, 1); |
luaL_argcheck(L, t == LUA_TTABLE || t == LUA_TSTRING, 1, |
"table or string expected"); |
lua_pushinteger(L, lua_rawlen(L, 1)); |
return 1; |
} |
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static int luaB_rawget (lua_State *L) { |
luaL_checktype(L, 1, LUA_TTABLE); |
luaL_checkany(L, 2); |
lua_settop(L, 2); |
lua_rawget(L, 1); |
return 1; |
} |
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static int luaB_rawset (lua_State *L) { |
luaL_checktype(L, 1, LUA_TTABLE); |
luaL_checkany(L, 2); |
luaL_checkany(L, 3); |
lua_settop(L, 3); |
lua_rawset(L, 1); |
return 1; |
} |
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static int luaB_collectgarbage (lua_State *L) { |
static const char *const opts[] = {"stop", "restart", "collect", |
"count", "step", "setpause", "setstepmul", |
"setmajorinc", "isrunning", "generational", "incremental", NULL}; |
static const int optsnum[] = {LUA_GCSTOP, LUA_GCRESTART, LUA_GCCOLLECT, |
LUA_GCCOUNT, LUA_GCSTEP, LUA_GCSETPAUSE, LUA_GCSETSTEPMUL, |
LUA_GCSETMAJORINC, LUA_GCISRUNNING, LUA_GCGEN, LUA_GCINC}; |
int o = optsnum[luaL_checkoption(L, 1, "collect", opts)]; |
int ex = luaL_optint(L, 2, 0); |
int res = lua_gc(L, o, ex); |
switch (o) { |
case LUA_GCCOUNT: { |
int b = lua_gc(L, LUA_GCCOUNTB, 0); |
lua_pushnumber(L, res + ((lua_Number)b/1024)); |
lua_pushinteger(L, b); |
return 2; |
} |
case LUA_GCSTEP: case LUA_GCISRUNNING: { |
lua_pushboolean(L, res); |
return 1; |
} |
default: { |
lua_pushinteger(L, res); |
return 1; |
} |
} |
} |
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static int luaB_type (lua_State *L) { |
luaL_checkany(L, 1); |
lua_pushstring(L, luaL_typename(L, 1)); |
return 1; |
} |
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static int pairsmeta (lua_State *L, const char *method, int iszero, |
lua_CFunction iter) { |
if (!luaL_getmetafield(L, 1, method)) { /* no metamethod? */ |
luaL_checktype(L, 1, LUA_TTABLE); /* argument must be a table */ |
lua_pushcfunction(L, iter); /* will return generator, */ |
lua_pushvalue(L, 1); /* state, */ |
if (iszero) lua_pushinteger(L, 0); /* and initial value */ |
else lua_pushnil(L); |
} |
else { |
lua_pushvalue(L, 1); /* argument 'self' to metamethod */ |
lua_call(L, 1, 3); /* get 3 values from metamethod */ |
} |
return 3; |
} |
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static int luaB_next (lua_State *L) { |
luaL_checktype(L, 1, LUA_TTABLE); |
lua_settop(L, 2); /* create a 2nd argument if there isn't one */ |
if (lua_next(L, 1)) |
return 2; |
else { |
lua_pushnil(L); |
return 1; |
} |
} |
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static int luaB_pairs (lua_State *L) { |
return pairsmeta(L, "__pairs", 0, luaB_next); |
} |
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static int ipairsaux (lua_State *L) { |
int i = luaL_checkint(L, 2); |
luaL_checktype(L, 1, LUA_TTABLE); |
i++; /* next value */ |
lua_pushinteger(L, i); |
lua_rawgeti(L, 1, i); |
return (lua_isnil(L, -1)) ? 1 : 2; |
} |
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static int luaB_ipairs (lua_State *L) { |
return pairsmeta(L, "__ipairs", 1, ipairsaux); |
} |
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static int load_aux (lua_State *L, int status) { |
if (status == LUA_OK) |
return 1; |
else { |
lua_pushnil(L); |
lua_insert(L, -2); /* put before error message */ |
return 2; /* return nil plus error message */ |
} |
} |
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static int luaB_loadfile (lua_State *L) { |
const char *fname = luaL_optstring(L, 1, NULL); |
const char *mode = luaL_optstring(L, 2, NULL); |
int env = !lua_isnone(L, 3); /* 'env' parameter? */ |
int status = luaL_loadfilex(L, fname, mode); |
if (status == LUA_OK && env) { /* 'env' parameter? */ |
lua_pushvalue(L, 3); |
lua_setupvalue(L, -2, 1); /* set it as 1st upvalue of loaded chunk */ |
} |
return load_aux(L, status); |
} |
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/* |
** {====================================================== |
** Generic Read function |
** ======================================================= |
*/ |
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/* |
** reserved slot, above all arguments, to hold a copy of the returned |
** string to avoid it being collected while parsed. 'load' has four |
** optional arguments (chunk, source name, mode, and environment). |
*/ |
#define RESERVEDSLOT 5 |
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/* |
** Reader for generic `load' function: `lua_load' uses the |
** stack for internal stuff, so the reader cannot change the |
** stack top. Instead, it keeps its resulting string in a |
** reserved slot inside the stack. |
*/ |
static const char *generic_reader (lua_State *L, void *ud, size_t *size) { |
(void)(ud); /* not used */ |
luaL_checkstack(L, 2, "too many nested functions"); |
lua_pushvalue(L, 1); /* get function */ |
lua_call(L, 0, 1); /* call it */ |
if (lua_isnil(L, -1)) { |
*size = 0; |
return NULL; |
} |
else if (!lua_isstring(L, -1)) |
luaL_error(L, "reader function must return a string"); |
lua_replace(L, RESERVEDSLOT); /* save string in reserved slot */ |
return lua_tolstring(L, RESERVEDSLOT, size); |
} |
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static int luaB_load (lua_State *L) { |
int status; |
size_t l; |
int top = lua_gettop(L); |
const char *s = lua_tolstring(L, 1, &l); |
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); |
} |
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/* }====================================================== */ |
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static int dofilecont (lua_State *L) { |
return lua_gettop(L) - 1; |
} |
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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); |
} |
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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); |
} |
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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; |
} |
} |
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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); |
} |
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static int pcallcont (lua_State *L) { |
int status = lua_getctx(L, NULL); |
return finishpcall(L, (status == LUA_YIELD)); |
} |
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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)); |
} |
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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)); |
} |
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static int luaB_tostring (lua_State *L) { |
luaL_checkany(L, 1); |
luaL_tolstring(L, 1, NULL); |
return 1; |
} |
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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} |
}; |
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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; |
} |
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