diff options
Diffstat (limited to '')
| -rw-r--r-- | inout.c | 405 | ||||
| -rw-r--r-- | inout.h | 26 | ||||
| -rw-r--r-- | lbuiltin.c | 404 | ||||
| -rw-r--r-- | lbuiltin.h | 14 |
4 files changed, 418 insertions, 431 deletions
diff --git a/inout.c b/inout.c deleted file mode 100644 index 0a05c9c4..00000000 --- a/inout.c +++ /dev/null | |||
| @@ -1,405 +0,0 @@ | |||
| 1 | /* | ||
| 2 | ** inout.c | ||
| 3 | ** Provide function to realise the input/output function and debugger | ||
| 4 | ** facilities. | ||
| 5 | ** Also provides some predefined lua functions. | ||
| 6 | */ | ||
| 7 | |||
| 8 | char *rcs_inout="$Id: inout.c,v 2.71 1997/07/29 13:33:15 roberto Exp roberto $"; | ||
| 9 | |||
| 10 | #include <stdio.h> | ||
| 11 | #include <string.h> | ||
| 12 | |||
| 13 | #include "auxlib.h" | ||
| 14 | #include "fallback.h" | ||
| 15 | #include "hash.h" | ||
| 16 | #include "inout.h" | ||
| 17 | #include "lex.h" | ||
| 18 | #include "lua.h" | ||
| 19 | #include "luamem.h" | ||
| 20 | #include "luamem.h" | ||
| 21 | #include "opcode.h" | ||
| 22 | #include "table.h" | ||
| 23 | #include "tree.h" | ||
| 24 | #include "undump.h" | ||
| 25 | #include "zio.h" | ||
| 26 | |||
| 27 | |||
| 28 | /* Exported variables */ | ||
| 29 | Word lua_linenumber; | ||
| 30 | TaggedString *lua_parsedfile; | ||
| 31 | |||
| 32 | |||
| 33 | char *luaI_typenames[] = { /* ORDER LUA_T */ | ||
| 34 | "userdata", "line", "cmark", "mark", "function", | ||
| 35 | "function", "table", "string", "number", "nil", | ||
| 36 | NULL | ||
| 37 | }; | ||
| 38 | |||
| 39 | |||
| 40 | |||
| 41 | void luaI_setparsedfile (char *name) | ||
| 42 | { | ||
| 43 | lua_parsedfile = luaI_createstring(name); | ||
| 44 | } | ||
| 45 | |||
| 46 | |||
| 47 | int lua_doFILE (FILE *f, int bin) | ||
| 48 | { | ||
| 49 | ZIO z; | ||
| 50 | luaZ_Fopen(&z, f); | ||
| 51 | if (bin) | ||
| 52 | return luaI_undump(&z); | ||
| 53 | else { | ||
| 54 | lua_setinput(&z); | ||
| 55 | return lua_domain(); | ||
| 56 | } | ||
| 57 | } | ||
| 58 | |||
| 59 | |||
| 60 | int lua_dofile (char *filename) | ||
| 61 | { | ||
| 62 | int status; | ||
| 63 | int c; | ||
| 64 | FILE *f = (filename == NULL) ? stdin : fopen(filename, "r"); | ||
| 65 | if (f == NULL) | ||
| 66 | return 2; | ||
| 67 | luaI_setparsedfile(filename?filename:"(stdin)"); | ||
| 68 | c = fgetc(f); | ||
| 69 | ungetc(c, f); | ||
| 70 | if (c == ID_CHUNK) { | ||
| 71 | f = freopen(filename, "rb", f); /* set binary mode */ | ||
| 72 | status = lua_doFILE(f, 1); | ||
| 73 | } | ||
| 74 | else | ||
| 75 | status = lua_doFILE(f, 0); | ||
| 76 | if (f != stdin) | ||
| 77 | fclose(f); | ||
| 78 | return status; | ||
| 79 | } | ||
| 80 | |||
| 81 | |||
| 82 | |||
| 83 | #define SIZE_PREF 20 /* size of string prefix to appear in error messages */ | ||
| 84 | |||
| 85 | |||
| 86 | int lua_dobuffer (char *buff, int size) | ||
| 87 | { | ||
| 88 | int status; | ||
| 89 | ZIO z; | ||
| 90 | luaI_setparsedfile("(buffer)"); | ||
| 91 | luaZ_mopen(&z, buff, size); | ||
| 92 | status = luaI_undump(&z); | ||
| 93 | return status; | ||
| 94 | } | ||
| 95 | |||
| 96 | |||
| 97 | int lua_dostring (char *str) | ||
| 98 | { | ||
| 99 | int status; | ||
| 100 | char buff[SIZE_PREF+25]; | ||
| 101 | char *temp; | ||
| 102 | ZIO z; | ||
| 103 | if (str == NULL) return 1; | ||
| 104 | sprintf(buff, "(dostring) >> %.20s", str); | ||
| 105 | temp = strchr(buff, '\n'); | ||
| 106 | if (temp) *temp = 0; /* end string after first line */ | ||
| 107 | luaI_setparsedfile(buff); | ||
| 108 | luaZ_sopen(&z, str); | ||
| 109 | lua_setinput(&z); | ||
| 110 | status = lua_domain(); | ||
| 111 | return status; | ||
| 112 | } | ||
| 113 | |||
| 114 | |||
| 115 | |||
| 116 | |||
| 117 | static int passresults (void) | ||
| 118 | { | ||
| 119 | int arg = 0; | ||
| 120 | lua_Object obj; | ||
| 121 | while ((obj = lua_getresult(++arg)) != LUA_NOOBJECT) | ||
| 122 | lua_pushobject(obj); | ||
| 123 | return arg-1; | ||
| 124 | } | ||
| 125 | |||
| 126 | |||
| 127 | static void packresults (void) | ||
| 128 | { | ||
| 129 | int arg = 0; | ||
| 130 | lua_Object obj; | ||
| 131 | lua_Object table = lua_createtable(); | ||
| 132 | while ((obj = lua_getresult(++arg)) != LUA_NOOBJECT) { | ||
| 133 | lua_pushobject(table); | ||
| 134 | lua_pushnumber(arg); | ||
| 135 | lua_pushobject(obj); | ||
| 136 | lua_rawsettable(); | ||
| 137 | } | ||
| 138 | lua_pushobject(table); | ||
| 139 | lua_pushstring("n"); | ||
| 140 | lua_pushnumber(arg-1); | ||
| 141 | lua_rawsettable(); | ||
| 142 | lua_pushobject(table); /* final result */ | ||
| 143 | } | ||
| 144 | |||
| 145 | /* | ||
| 146 | ** Internal function: do a string | ||
| 147 | */ | ||
| 148 | static void lua_internaldostring (void) | ||
| 149 | { | ||
| 150 | lua_Object err = lua_getparam(2); | ||
| 151 | if (err != LUA_NOOBJECT) { /* set new error method */ | ||
| 152 | luaL_arg_check(lua_isnil(err) || lua_isfunction(err), 2, | ||
| 153 | "must be a valid error handler"); | ||
| 154 | lua_pushobject(err); | ||
| 155 | err = lua_seterrormethod(); | ||
| 156 | } | ||
| 157 | if (lua_dostring(luaL_check_string(1)) == 0) | ||
| 158 | if (passresults() == 0) | ||
| 159 | lua_pushuserdata(NULL); /* at least one result to signal no errors */ | ||
| 160 | if (err != LUA_NOOBJECT) { /* restore old error method */ | ||
| 161 | lua_pushobject(err); | ||
| 162 | lua_seterrormethod(); | ||
| 163 | } | ||
| 164 | } | ||
| 165 | |||
| 166 | /* | ||
| 167 | ** Internal function: do a file | ||
| 168 | */ | ||
| 169 | static void lua_internaldofile (void) | ||
| 170 | { | ||
| 171 | char *fname = luaL_opt_string(1, NULL); | ||
| 172 | if (lua_dofile(fname) == 0) | ||
| 173 | if (passresults() == 0) | ||
| 174 | lua_pushuserdata(NULL); /* at least one result to signal no errors */ | ||
| 175 | } | ||
| 176 | |||
| 177 | |||
| 178 | static char *tostring (lua_Object obj) | ||
| 179 | { | ||
| 180 | TObject *o = luaI_Address(obj); | ||
| 181 | switch (ttype(o)) { | ||
| 182 | case LUA_T_NUMBER: case LUA_T_STRING: | ||
| 183 | return lua_getstring(obj); | ||
| 184 | case LUA_T_ARRAY: case LUA_T_FUNCTION: | ||
| 185 | case LUA_T_CFUNCTION: case LUA_T_NIL: | ||
| 186 | return luaI_typenames[-ttype(o)]; | ||
| 187 | case LUA_T_USERDATA: { | ||
| 188 | char *buff = luaI_buffer(30); | ||
| 189 | sprintf(buff, "userdata: %p", o->value.ts->u.v); | ||
| 190 | return buff; | ||
| 191 | } | ||
| 192 | default: return "<unknown object>"; | ||
| 193 | } | ||
| 194 | } | ||
| 195 | |||
| 196 | static void luaI_tostring (void) | ||
| 197 | { | ||
| 198 | lua_pushstring(tostring(lua_getparam(1))); | ||
| 199 | } | ||
| 200 | |||
| 201 | static void luaI_print (void) | ||
| 202 | { | ||
| 203 | int i = 1; | ||
| 204 | lua_Object obj; | ||
| 205 | while ((obj = lua_getparam(i++)) != LUA_NOOBJECT) | ||
| 206 | printf("%s\n", tostring(obj)); | ||
| 207 | } | ||
| 208 | |||
| 209 | static void luaI_type (void) | ||
| 210 | { | ||
| 211 | lua_Object o = lua_getparam(1); | ||
| 212 | luaL_arg_check(o != LUA_NOOBJECT, 1, "no argument"); | ||
| 213 | lua_pushstring(luaI_typenames[-ttype(luaI_Address(o))]); | ||
| 214 | lua_pushnumber(lua_tag(o)); | ||
| 215 | } | ||
| 216 | |||
| 217 | /* | ||
| 218 | ** Internal function: convert an object to a number | ||
| 219 | */ | ||
| 220 | static void lua_obj2number (void) | ||
| 221 | { | ||
| 222 | lua_Object o = lua_getparam(1); | ||
| 223 | if (lua_isnumber(o)) | ||
| 224 | lua_pushnumber(lua_getnumber(o)); | ||
| 225 | } | ||
| 226 | |||
| 227 | |||
| 228 | static void luaI_error (void) | ||
| 229 | { | ||
| 230 | char *s = lua_getstring(lua_getparam(1)); | ||
| 231 | if (s == NULL) s = "(no message)"; | ||
| 232 | lua_error(s); | ||
| 233 | } | ||
| 234 | |||
| 235 | static void luaI_assert (void) | ||
| 236 | { | ||
| 237 | lua_Object p = lua_getparam(1); | ||
| 238 | if (p == LUA_NOOBJECT || lua_isnil(p)) | ||
| 239 | lua_error("assertion failed!"); | ||
| 240 | } | ||
| 241 | |||
| 242 | static void luaI_setglobal (void) | ||
| 243 | { | ||
| 244 | lua_Object value = lua_getparam(2); | ||
| 245 | luaL_arg_check(value != LUA_NOOBJECT, 2, NULL); | ||
| 246 | lua_pushobject(value); | ||
| 247 | lua_setglobal(luaL_check_string(1)); | ||
| 248 | lua_pushobject(value); /* return given value */ | ||
| 249 | } | ||
| 250 | |||
| 251 | static void luaI_rawsetglobal (void) | ||
| 252 | { | ||
| 253 | lua_Object value = lua_getparam(2); | ||
| 254 | luaL_arg_check(value != LUA_NOOBJECT, 2, NULL); | ||
| 255 | lua_pushobject(value); | ||
| 256 | lua_rawsetglobal(luaL_check_string(1)); | ||
| 257 | lua_pushobject(value); /* return given value */ | ||
| 258 | } | ||
| 259 | |||
| 260 | static void luaI_getglobal (void) | ||
| 261 | { | ||
| 262 | lua_pushobject(lua_getglobal(luaL_check_string(1))); | ||
| 263 | } | ||
| 264 | |||
| 265 | static void luaI_rawgetglobal (void) | ||
| 266 | { | ||
| 267 | lua_pushobject(lua_rawgetglobal(luaL_check_string(1))); | ||
| 268 | } | ||
| 269 | |||
| 270 | static void luatag (void) | ||
| 271 | { | ||
| 272 | lua_pushnumber(lua_tag(lua_getparam(1))); | ||
| 273 | } | ||
| 274 | |||
| 275 | |||
| 276 | static int getnarg (lua_Object table) | ||
| 277 | { | ||
| 278 | lua_Object temp; | ||
| 279 | /* temp = table.n */ | ||
| 280 | lua_pushobject(table); lua_pushstring("n"); temp = lua_gettable(); | ||
| 281 | return (lua_isnumber(temp) ? lua_getnumber(temp) : MAX_WORD); | ||
| 282 | } | ||
| 283 | |||
| 284 | static void luaI_call (void) | ||
| 285 | { | ||
| 286 | lua_Object f = lua_getparam(1); | ||
| 287 | lua_Object arg = lua_getparam(2); | ||
| 288 | int withtable = (strcmp(luaL_opt_string(3, ""), "pack") == 0); | ||
| 289 | int narg, i; | ||
| 290 | luaL_arg_check(lua_isfunction(f), 1, "function expected"); | ||
| 291 | luaL_arg_check(lua_istable(arg), 2, "table expected"); | ||
| 292 | narg = getnarg(arg); | ||
| 293 | /* push arg[1...n] */ | ||
| 294 | for (i=0; i<narg; i++) { | ||
| 295 | lua_Object temp; | ||
| 296 | /* temp = arg[i+1] */ | ||
| 297 | lua_pushobject(arg); lua_pushnumber(i+1); temp = lua_gettable(); | ||
| 298 | if (narg == MAX_WORD && lua_isnil(temp)) | ||
| 299 | break; | ||
| 300 | lua_pushobject(temp); | ||
| 301 | } | ||
| 302 | if (lua_callfunction(f)) | ||
| 303 | lua_error(NULL); | ||
| 304 | else if (withtable) | ||
| 305 | packresults(); | ||
| 306 | else | ||
| 307 | passresults(); | ||
| 308 | } | ||
| 309 | |||
| 310 | static void luaIl_settag (void) | ||
| 311 | { | ||
| 312 | lua_Object o = lua_getparam(1); | ||
| 313 | luaL_arg_check(lua_istable(o), 1, "table expected"); | ||
| 314 | lua_pushobject(o); | ||
| 315 | lua_settag(luaL_check_number(2)); | ||
| 316 | } | ||
| 317 | |||
| 318 | static void luaIl_newtag (void) | ||
| 319 | { | ||
| 320 | lua_pushnumber(lua_newtag()); | ||
| 321 | } | ||
| 322 | |||
| 323 | static void rawgettable (void) | ||
| 324 | { | ||
| 325 | lua_Object t = lua_getparam(1); | ||
| 326 | lua_Object i = lua_getparam(2); | ||
| 327 | luaL_arg_check(t != LUA_NOOBJECT, 1, NULL); | ||
| 328 | luaL_arg_check(i != LUA_NOOBJECT, 2, NULL); | ||
| 329 | lua_pushobject(t); | ||
| 330 | lua_pushobject(i); | ||
| 331 | lua_pushobject(lua_rawgettable()); | ||
| 332 | } | ||
| 333 | |||
| 334 | static void rawsettable (void) | ||
| 335 | { | ||
| 336 | lua_Object t = lua_getparam(1); | ||
| 337 | lua_Object i = lua_getparam(2); | ||
| 338 | lua_Object v = lua_getparam(3); | ||
| 339 | luaL_arg_check(t != LUA_NOOBJECT && i != LUA_NOOBJECT && v != LUA_NOOBJECT, | ||
| 340 | 0, NULL); | ||
| 341 | lua_pushobject(t); | ||
| 342 | lua_pushobject(i); | ||
| 343 | lua_pushobject(v); | ||
| 344 | lua_rawsettable(); | ||
| 345 | } | ||
| 346 | |||
| 347 | |||
| 348 | static void luaI_collectgarbage (void) | ||
| 349 | { | ||
| 350 | lua_pushnumber(lua_collectgarbage(luaL_opt_number(1, 0))); | ||
| 351 | } | ||
| 352 | |||
| 353 | |||
| 354 | /* | ||
| 355 | ** Internal functions | ||
| 356 | */ | ||
| 357 | static struct { | ||
| 358 | char *name; | ||
| 359 | lua_CFunction func; | ||
| 360 | } int_funcs[] = { | ||
| 361 | {"assert", luaI_assert}, | ||
| 362 | {"call", luaI_call}, | ||
| 363 | {"collectgarbage", luaI_collectgarbage}, | ||
| 364 | {"dofile", lua_internaldofile}, | ||
| 365 | {"dostring", lua_internaldostring}, | ||
| 366 | {"error", luaI_error}, | ||
| 367 | {"getglobal", luaI_getglobal}, | ||
| 368 | {"newtag", luaIl_newtag}, | ||
| 369 | {"next", lua_next}, | ||
| 370 | {"nextvar", luaI_nextvar}, | ||
| 371 | {"print", luaI_print}, | ||
| 372 | {"rawgetglobal", luaI_rawgetglobal}, | ||
| 373 | {"rawgettable", rawgettable}, | ||
| 374 | {"rawsetglobal", luaI_rawsetglobal}, | ||
| 375 | {"rawsettable", rawsettable}, | ||
| 376 | {"seterrormethod", luaI_seterrormethod}, | ||
| 377 | #if LUA_COMPAT2_5 | ||
| 378 | {"setfallback", luaI_setfallback}, | ||
| 379 | #endif | ||
| 380 | {"setglobal", luaI_setglobal}, | ||
| 381 | {"settagmethod", luaI_settagmethod}, | ||
| 382 | {"gettagmethod", luaI_gettagmethod}, | ||
| 383 | {"settag", luaIl_settag}, | ||
| 384 | {"tonumber", lua_obj2number}, | ||
| 385 | {"tostring", luaI_tostring}, | ||
| 386 | {"tag", luatag}, | ||
| 387 | {"type", luaI_type} | ||
| 388 | }; | ||
| 389 | |||
| 390 | #define INTFUNCSIZE (sizeof(int_funcs)/sizeof(int_funcs[0])) | ||
| 391 | |||
| 392 | |||
| 393 | void luaI_predefine (void) | ||
| 394 | { | ||
| 395 | int i; | ||
| 396 | Word n; | ||
| 397 | for (i=0; i<INTFUNCSIZE; i++) { | ||
| 398 | n = luaI_findsymbolbyname(int_funcs[i].name); | ||
| 399 | s_ttype(n) = LUA_T_CFUNCTION; s_fvalue(n) = int_funcs[i].func; | ||
| 400 | } | ||
| 401 | n = luaI_findsymbolbyname("_VERSION"); | ||
| 402 | s_ttype(n) = LUA_T_STRING; s_tsvalue(n) = luaI_createstring(LUA_VERSION); | ||
| 403 | } | ||
| 404 | |||
| 405 | |||
diff --git a/inout.h b/inout.h deleted file mode 100644 index c3dccdf1..00000000 --- a/inout.h +++ /dev/null | |||
| @@ -1,26 +0,0 @@ | |||
| 1 | /* | ||
| 2 | ** $Id: inout.h,v 1.20 1997/06/19 18:04:34 roberto Exp roberto $ | ||
| 3 | */ | ||
| 4 | |||
| 5 | |||
| 6 | #ifndef inout_h | ||
| 7 | #define inout_h | ||
| 8 | |||
| 9 | #include "types.h" | ||
| 10 | #include "tree.h" | ||
| 11 | #include <stdio.h> | ||
| 12 | |||
| 13 | |||
| 14 | extern Word lua_linenumber; | ||
| 15 | extern Word lua_debugline; | ||
| 16 | extern TaggedString *lua_parsedfile; | ||
| 17 | |||
| 18 | void luaI_setparsedfile (char *name); | ||
| 19 | |||
| 20 | void luaI_predefine (void); | ||
| 21 | |||
| 22 | int lua_dobuffer (char *buff, int size); | ||
| 23 | int lua_doFILE (FILE *f, int bin); | ||
| 24 | |||
| 25 | |||
| 26 | #endif | ||
diff --git a/lbuiltin.c b/lbuiltin.c new file mode 100644 index 00000000..eeb3daf8 --- /dev/null +++ b/lbuiltin.c | |||
| @@ -0,0 +1,404 @@ | |||
| 1 | /* | ||
| 2 | ** $Id: $ | ||
| 3 | ** Built-in functions | ||
| 4 | ** See Copyright Notice in lua.h | ||
| 5 | */ | ||
| 6 | |||
| 7 | |||
| 8 | #include <stdio.h> | ||
| 9 | |||
| 10 | #include "lapi.h" | ||
| 11 | #include "lauxlib.h" | ||
| 12 | #include "lbuiltin.h" | ||
| 13 | #include "lglobal.h" | ||
| 14 | #include "lmem.h" | ||
| 15 | #include "lstring.h" | ||
| 16 | #include "ltable.h" | ||
| 17 | #include "ltm.h" | ||
| 18 | #include "lua.h" | ||
| 19 | |||
| 20 | |||
| 21 | static void nextvar (void) | ||
| 22 | { | ||
| 23 | int i = luaG_nextvar(lua_isnil(lua_getparam(1)) ? 0 : | ||
| 24 | luaG_findsymbolbyname(luaL_check_string(1))+1); | ||
| 25 | if (i >= 0) { | ||
| 26 | lua_pushstring(luaG_global[i].varname->str); | ||
| 27 | luaA_pushobject(&s_object(i)); | ||
| 28 | } | ||
| 29 | } | ||
| 30 | |||
| 31 | |||
| 32 | static void next (void) | ||
| 33 | { | ||
| 34 | lua_Object o = lua_getparam(1); | ||
| 35 | lua_Object r = lua_getparam(2); | ||
| 36 | Node *n; | ||
| 37 | luaL_arg_check(lua_istable(o), 1, "table expected"); | ||
| 38 | luaL_arg_check(r != LUA_NOOBJECT, 2, "value expected"); | ||
| 39 | n = luaH_next(luaA_Address(o), luaA_Address(r)); | ||
| 40 | if (n) { | ||
| 41 | luaA_pushobject(&n->ref); | ||
| 42 | luaA_pushobject(&n->val); | ||
| 43 | } | ||
| 44 | } | ||
| 45 | |||
| 46 | |||
| 47 | static void internaldostring (void) | ||
| 48 | { | ||
| 49 | lua_Object err = lua_getparam(2); | ||
| 50 | if (err != LUA_NOOBJECT) { /* set new error method */ | ||
| 51 | lua_pushobject(err); | ||
| 52 | err = lua_seterrormethod(); | ||
| 53 | } | ||
| 54 | if (lua_dostring(luaL_check_string(1)) == 0) | ||
| 55 | if (luaA_passresults() == 0) | ||
| 56 | lua_pushuserdata(NULL); /* at least one result to signal no errors */ | ||
| 57 | if (err != LUA_NOOBJECT) { /* restore old error method */ | ||
| 58 | lua_pushobject(err); | ||
| 59 | lua_seterrormethod(); | ||
| 60 | } | ||
| 61 | } | ||
| 62 | |||
| 63 | |||
| 64 | static void internaldofile (void) | ||
| 65 | { | ||
| 66 | char *fname = luaL_opt_string(1, NULL); | ||
| 67 | if (lua_dofile(fname) == 0) | ||
| 68 | if (luaA_passresults() == 0) | ||
| 69 | lua_pushuserdata(NULL); /* at least one result to signal no errors */ | ||
| 70 | } | ||
| 71 | |||
| 72 | |||
| 73 | static char *to_string (lua_Object obj) | ||
| 74 | { | ||
| 75 | char *buff = luaM_buffer(30); | ||
| 76 | TObject *o = luaA_Address(obj); | ||
| 77 | switch (ttype(o)) { | ||
| 78 | case LUA_T_NUMBER: case LUA_T_STRING: | ||
| 79 | return lua_getstring(obj); | ||
| 80 | case LUA_T_ARRAY: { | ||
| 81 | sprintf(buff, "table: %p", o->value.a); | ||
| 82 | return buff; | ||
| 83 | } | ||
| 84 | case LUA_T_FUNCTION: { | ||
| 85 | sprintf(buff, "function: %p", o->value.cl); | ||
| 86 | return buff; | ||
| 87 | } | ||
| 88 | case LUA_T_CFUNCTION: { | ||
| 89 | sprintf(buff, "cfunction: %p", o->value.f); | ||
| 90 | return buff; | ||
| 91 | } | ||
| 92 | case LUA_T_USERDATA: { | ||
| 93 | sprintf(buff, "userdata: %p", o->value.ts->u.v); | ||
| 94 | return buff; | ||
| 95 | } | ||
| 96 | case LUA_T_NIL: | ||
| 97 | return "nil"; | ||
| 98 | default: return "<unknown object>"; | ||
| 99 | } | ||
| 100 | } | ||
| 101 | |||
| 102 | static void bi_tostring (void) | ||
| 103 | { | ||
| 104 | lua_pushstring(to_string(lua_getparam(1))); | ||
| 105 | } | ||
| 106 | |||
| 107 | |||
| 108 | static void luaI_print (void) | ||
| 109 | { | ||
| 110 | int i = 1; | ||
| 111 | lua_Object obj; | ||
| 112 | while ((obj = lua_getparam(i++)) != LUA_NOOBJECT) | ||
| 113 | printf("%s\n", to_string(obj)); | ||
| 114 | } | ||
| 115 | |||
| 116 | |||
| 117 | static void luaI_type (void) | ||
| 118 | { | ||
| 119 | lua_Object o = lua_getparam(1); | ||
| 120 | luaL_arg_check(o != LUA_NOOBJECT, 1, "no argument"); | ||
| 121 | lua_pushstring(luaO_typenames[-ttype(luaA_Address(o))]); | ||
| 122 | lua_pushnumber(lua_tag(o)); | ||
| 123 | } | ||
| 124 | |||
| 125 | |||
| 126 | static void lua_obj2number (void) | ||
| 127 | { | ||
| 128 | lua_Object o = lua_getparam(1); | ||
| 129 | if (lua_isnumber(o)) | ||
| 130 | lua_pushnumber(lua_getnumber(o)); | ||
| 131 | } | ||
| 132 | |||
| 133 | |||
| 134 | static void luaI_error (void) | ||
| 135 | { | ||
| 136 | char *s = lua_getstring(lua_getparam(1)); | ||
| 137 | if (s == NULL) s = "(no message)"; | ||
| 138 | lua_error(s); | ||
| 139 | } | ||
| 140 | |||
| 141 | |||
| 142 | static void luaI_assert (void) | ||
| 143 | { | ||
| 144 | lua_Object p = lua_getparam(1); | ||
| 145 | if (p == LUA_NOOBJECT || lua_isnil(p)) | ||
| 146 | lua_error("assertion failed!"); | ||
| 147 | } | ||
| 148 | |||
| 149 | |||
| 150 | static void setglobal (void) | ||
| 151 | { | ||
| 152 | lua_Object value = lua_getparam(2); | ||
| 153 | luaL_arg_check(value != LUA_NOOBJECT, 2, NULL); | ||
| 154 | lua_pushobject(value); | ||
| 155 | lua_setglobal(luaL_check_string(1)); | ||
| 156 | lua_pushobject(value); /* return given value */ | ||
| 157 | } | ||
| 158 | |||
| 159 | static void rawsetglobal (void) | ||
| 160 | { | ||
| 161 | lua_Object value = lua_getparam(2); | ||
| 162 | luaL_arg_check(value != LUA_NOOBJECT, 2, NULL); | ||
| 163 | lua_pushobject(value); | ||
| 164 | lua_rawsetglobal(luaL_check_string(1)); | ||
| 165 | lua_pushobject(value); /* return given value */ | ||
| 166 | } | ||
| 167 | |||
| 168 | static void getglobal (void) | ||
| 169 | { | ||
| 170 | lua_pushobject(lua_getglobal(luaL_check_string(1))); | ||
| 171 | } | ||
| 172 | |||
| 173 | static void rawgetglobal (void) | ||
| 174 | { | ||
| 175 | lua_pushobject(lua_rawgetglobal(luaL_check_string(1))); | ||
| 176 | } | ||
| 177 | |||
| 178 | static void luatag (void) | ||
| 179 | { | ||
| 180 | lua_pushnumber(lua_tag(lua_getparam(1))); | ||
| 181 | } | ||
| 182 | |||
| 183 | |||
| 184 | static int getnarg (lua_Object table) | ||
| 185 | { | ||
| 186 | lua_Object temp; | ||
| 187 | /* temp = table.n */ | ||
| 188 | lua_pushobject(table); lua_pushstring("n"); temp = lua_gettable(); | ||
| 189 | return (lua_isnumber(temp) ? lua_getnumber(temp) : MAX_WORD); | ||
| 190 | } | ||
| 191 | |||
| 192 | static void luaI_call (void) | ||
| 193 | { | ||
| 194 | lua_Object f = lua_getparam(1); | ||
| 195 | lua_Object arg = lua_getparam(2); | ||
| 196 | int withtable = (strcmp(luaL_opt_string(3, ""), "pack") == 0); | ||
| 197 | int narg, i; | ||
| 198 | luaL_arg_check(lua_isfunction(f), 1, "function expected"); | ||
| 199 | luaL_arg_check(lua_istable(arg), 2, "table expected"); | ||
| 200 | narg = getnarg(arg); | ||
| 201 | /* push arg[1...n] */ | ||
| 202 | for (i=0; i<narg; i++) { | ||
| 203 | lua_Object temp; | ||
| 204 | /* temp = arg[i+1] */ | ||
| 205 | lua_pushobject(arg); lua_pushnumber(i+1); temp = lua_gettable(); | ||
| 206 | if (narg == MAX_WORD && lua_isnil(temp)) | ||
| 207 | break; | ||
| 208 | lua_pushobject(temp); | ||
| 209 | } | ||
| 210 | if (lua_callfunction(f)) | ||
| 211 | lua_error(NULL); | ||
| 212 | else if (withtable) | ||
| 213 | luaA_packresults(); | ||
| 214 | else | ||
| 215 | luaA_passresults(); | ||
| 216 | } | ||
| 217 | |||
| 218 | |||
| 219 | static void settag (void) | ||
| 220 | { | ||
| 221 | lua_Object o = lua_getparam(1); | ||
| 222 | luaL_arg_check(lua_istable(o), 1, "table expected"); | ||
| 223 | lua_pushobject(o); | ||
| 224 | lua_settag(luaL_check_number(2)); | ||
| 225 | } | ||
| 226 | |||
| 227 | |||
| 228 | static void newtag (void) | ||
| 229 | { | ||
| 230 | lua_pushnumber(lua_newtag()); | ||
| 231 | } | ||
| 232 | |||
| 233 | |||
| 234 | static void rawgettable (void) | ||
| 235 | { | ||
| 236 | lua_Object t = lua_getparam(1); | ||
| 237 | lua_Object i = lua_getparam(2); | ||
| 238 | luaL_arg_check(t != LUA_NOOBJECT, 1, NULL); | ||
| 239 | luaL_arg_check(i != LUA_NOOBJECT, 2, NULL); | ||
| 240 | lua_pushobject(t); | ||
| 241 | lua_pushobject(i); | ||
| 242 | lua_pushobject(lua_rawgettable()); | ||
| 243 | } | ||
| 244 | |||
| 245 | |||
| 246 | static void rawsettable (void) | ||
| 247 | { | ||
| 248 | lua_Object t = lua_getparam(1); | ||
| 249 | lua_Object i = lua_getparam(2); | ||
| 250 | lua_Object v = lua_getparam(3); | ||
| 251 | luaL_arg_check(t != LUA_NOOBJECT && i != LUA_NOOBJECT && v != LUA_NOOBJECT, | ||
| 252 | 0, NULL); | ||
| 253 | lua_pushobject(t); | ||
| 254 | lua_pushobject(i); | ||
| 255 | lua_pushobject(v); | ||
| 256 | lua_rawsettable(); | ||
| 257 | } | ||
| 258 | |||
| 259 | |||
| 260 | static void settagmethod (void) | ||
| 261 | { | ||
| 262 | lua_Object nf = lua_getparam(3); | ||
| 263 | luaL_arg_check(nf != LUA_NOOBJECT, 3, "value expected"); | ||
| 264 | lua_pushobject(nf); | ||
| 265 | lua_pushobject(lua_settagmethod((int)luaL_check_number(1), | ||
| 266 | luaL_check_string(2))); | ||
| 267 | } | ||
| 268 | |||
| 269 | |||
| 270 | static void gettagmethod (void) | ||
| 271 | { | ||
| 272 | lua_pushobject(lua_gettagmethod((int)luaL_check_number(1), | ||
| 273 | luaL_check_string(2))); | ||
| 274 | } | ||
| 275 | |||
| 276 | |||
| 277 | static void seterrormethod (void) | ||
| 278 | { | ||
| 279 | lua_Object nf = lua_getparam(1); | ||
| 280 | luaL_arg_check(nf != LUA_NOOBJECT, 1, "value expected"); | ||
| 281 | lua_pushobject(nf); | ||
| 282 | lua_pushobject(lua_seterrormethod()); | ||
| 283 | } | ||
| 284 | |||
| 285 | |||
| 286 | static void luaI_collectgarbage (void) | ||
| 287 | { | ||
| 288 | lua_pushnumber(lua_collectgarbage(luaL_opt_number(1, 0))); | ||
| 289 | } | ||
| 290 | |||
| 291 | |||
| 292 | /* | ||
| 293 | ** ======================================================= | ||
| 294 | ** some DEBUG functions | ||
| 295 | ** ======================================================= | ||
| 296 | */ | ||
| 297 | #ifdef DEBUG | ||
| 298 | |||
| 299 | static void testC (void) | ||
| 300 | { | ||
| 301 | #define getnum(s) ((*s++) - '0') | ||
| 302 | #define getname(s) (nome[0] = *s++, nome) | ||
| 303 | |||
| 304 | static int locks[10]; | ||
| 305 | lua_Object reg[10]; | ||
| 306 | char nome[2]; | ||
| 307 | char *s = luaL_check_string(1); | ||
| 308 | nome[1] = 0; | ||
| 309 | while (1) { | ||
| 310 | switch (*s++) { | ||
| 311 | case '0': case '1': case '2': case '3': case '4': | ||
| 312 | case '5': case '6': case '7': case '8': case '9': | ||
| 313 | lua_pushnumber(*(s-1) - '0'); | ||
| 314 | break; | ||
| 315 | |||
| 316 | case 'c': reg[getnum(s)] = lua_createtable(); break; | ||
| 317 | case 'P': reg[getnum(s)] = lua_pop(); break; | ||
| 318 | case 'g': { int n=getnum(s); reg[n]=lua_getglobal(getname(s)); break; } | ||
| 319 | case 'G': { int n = getnum(s); | ||
| 320 | reg[n] = lua_rawgetglobal(getname(s)); | ||
| 321 | break; | ||
| 322 | } | ||
| 323 | case 'l': locks[getnum(s)] = lua_ref(1); break; | ||
| 324 | case 'L': locks[getnum(s)] = lua_ref(0); break; | ||
| 325 | case 'r': { int n=getnum(s); reg[n]=lua_getref(locks[getnum(s)]); break; } | ||
| 326 | case 'u': lua_unref(locks[getnum(s)]); break; | ||
| 327 | case 'p': { int n = getnum(s); reg[n] = lua_getparam(getnum(s)); break; } | ||
| 328 | case '=': lua_setglobal(getname(s)); break; | ||
| 329 | case 's': lua_pushstring(getname(s)); break; | ||
| 330 | case 'o': lua_pushobject(reg[getnum(s)]); break; | ||
| 331 | case 'f': lua_call(getname(s)); break; | ||
| 332 | case 'i': reg[getnum(s)] = lua_gettable(); break; | ||
| 333 | case 'I': reg[getnum(s)] = lua_rawgettable(); break; | ||
| 334 | case 't': lua_settable(); break; | ||
| 335 | case 'T': lua_rawsettable(); break; | ||
| 336 | default: luaL_verror("unknown command in `testC': %c", *(s-1)); | ||
| 337 | } | ||
| 338 | if (*s == 0) return; | ||
| 339 | if (*s++ != ' ') lua_error("missing ` ' between commands in `testC'"); | ||
| 340 | } | ||
| 341 | } | ||
| 342 | |||
| 343 | #endif | ||
| 344 | |||
| 345 | |||
| 346 | /* | ||
| 347 | ** Internal functions | ||
| 348 | */ | ||
| 349 | static struct luaL_reg int_funcs[] = { | ||
| 350 | #if LUA_COMPAT2_5 | ||
| 351 | {"setfallback", luaT_setfallback}, | ||
| 352 | #endif | ||
| 353 | #ifdef DEBUG | ||
| 354 | {"testC", testC}, | ||
| 355 | {"totalmem", luaM_query}, | ||
| 356 | #endif | ||
| 357 | {"assert", luaI_assert}, | ||
| 358 | {"call", luaI_call}, | ||
| 359 | {"collectgarbage", luaI_collectgarbage}, | ||
| 360 | {"dofile", internaldofile}, | ||
| 361 | {"dostring", internaldostring}, | ||
| 362 | {"error", luaI_error}, | ||
| 363 | {"getglobal", getglobal}, | ||
| 364 | {"newtag", newtag}, | ||
| 365 | {"next", next}, | ||
| 366 | {"nextvar", nextvar}, | ||
| 367 | {"print", luaI_print}, | ||
| 368 | {"rawgetglobal", rawgetglobal}, | ||
| 369 | {"rawgettable", rawgettable}, | ||
| 370 | {"rawsetglobal", rawsetglobal}, | ||
| 371 | {"rawsettable", rawsettable}, | ||
| 372 | {"seterrormethod", seterrormethod}, | ||
| 373 | {"setglobal", setglobal}, | ||
| 374 | {"settagmethod", settagmethod}, | ||
| 375 | {"gettagmethod", gettagmethod}, | ||
| 376 | {"settag", settag}, | ||
| 377 | {"tonumber", lua_obj2number}, | ||
| 378 | {"tostring", bi_tostring}, | ||
| 379 | {"tag", luatag}, | ||
| 380 | {"type", luaI_type} | ||
| 381 | }; | ||
| 382 | |||
| 383 | |||
| 384 | #define INTFUNCSIZE (sizeof(int_funcs)/sizeof(int_funcs[0])) | ||
| 385 | |||
| 386 | |||
| 387 | void luaB_predefine (void) | ||
| 388 | { | ||
| 389 | int i; | ||
| 390 | Word n; | ||
| 391 | /* pre-register mem error messages, to avoid loop when error arises */ | ||
| 392 | luaS_newfixedstring(tableEM); | ||
| 393 | luaS_newfixedstring(memEM); | ||
| 394 | for (i=0; i<INTFUNCSIZE; i++) { | ||
| 395 | n = luaG_findsymbolbyname(int_funcs[i].name); | ||
| 396 | s_ttype(n) = LUA_T_CFUNCTION; | ||
| 397 | fvalue(&s_object(n)) = int_funcs[i].func; | ||
| 398 | } | ||
| 399 | n = luaG_findsymbolbyname("_VERSION"); | ||
| 400 | s_ttype(n) = LUA_T_STRING; | ||
| 401 | tsvalue(&s_object(n)) = luaS_new(LUA_VERSION); | ||
| 402 | } | ||
| 403 | |||
| 404 | |||
diff --git a/lbuiltin.h b/lbuiltin.h new file mode 100644 index 00000000..07210f85 --- /dev/null +++ b/lbuiltin.h | |||
| @@ -0,0 +1,14 @@ | |||
| 1 | /* | ||
| 2 | ** $Id: $ | ||
| 3 | ** Built-in functions | ||
| 4 | ** See Copyright Notice in lua.h | ||
| 5 | */ | ||
| 6 | |||
| 7 | #ifndef lbuiltin_h | ||
| 8 | #define lbuiltin_h | ||
| 9 | |||
| 10 | |||
| 11 | void luaB_predefine (void); | ||
| 12 | |||
| 13 | |||
| 14 | #endif | ||
