Guido van Rossum | f70e43a | 1991-02-19 12:39:46 +0000 | [diff] [blame] | 1 | /*********************************************************** |
Guido van Rossum | 2d95185 | 1994-08-29 12:52:16 +0000 | [diff] [blame] | 2 | Copyright 1991, 1992, 1993, 1994 by Stichting Mathematisch Centrum, |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 3 | Amsterdam, The Netherlands. |
Guido van Rossum | f70e43a | 1991-02-19 12:39:46 +0000 | [diff] [blame] | 4 | |
| 5 | All Rights Reserved |
| 6 | |
| 7 | Permission to use, copy, modify, and distribute this software and its |
| 8 | documentation for any purpose and without fee is hereby granted, |
| 9 | provided that the above copyright notice appear in all copies and that |
| 10 | both that copyright notice and this permission notice appear in |
| 11 | supporting documentation, and that the names of Stichting Mathematisch |
| 12 | Centrum or CWI not be used in advertising or publicity pertaining to |
| 13 | distribution of the software without specific, written prior permission. |
| 14 | |
| 15 | STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO |
| 16 | THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND |
| 17 | FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE |
| 18 | FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| 19 | WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| 20 | ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT |
| 21 | OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| 22 | |
| 23 | ******************************************************************/ |
| 24 | |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 25 | /* Built-in functions */ |
| 26 | |
| 27 | #include "allobjects.h" |
| 28 | |
| 29 | #include "node.h" |
| 30 | #include "graminit.h" |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 31 | #include "sysmodule.h" |
Guido van Rossum | 86cd6e6 | 1991-01-21 15:12:35 +0000 | [diff] [blame] | 32 | #include "bltinmodule.h" |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 33 | #include "import.h" |
| 34 | #include "pythonrun.h" |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 35 | #include "ceval.h" |
| 36 | #include "modsupport.h" |
Guido van Rossum | 5b72218 | 1993-03-30 17:46:03 +0000 | [diff] [blame] | 37 | #include "compile.h" |
| 38 | #include "eval.h" |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 39 | |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 40 | /* Forward */ |
| 41 | static object *filterstring PROTO((object *, object *)); |
| 42 | static object *filtertuple PROTO((object *, object *)); |
| 43 | static object *exec_eval PROTO((object *v, int start)); |
| 44 | |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 45 | static object * |
| 46 | builtin_abs(self, v) |
| 47 | object *self; |
| 48 | object *v; |
| 49 | { |
Guido van Rossum | d490545 | 1991-05-05 20:00:36 +0000 | [diff] [blame] | 50 | number_methods *nm; |
| 51 | if (v == NULL || (nm = v->ob_type->tp_as_number) == NULL) { |
| 52 | err_setstr(TypeError, "abs() requires numeric argument"); |
| 53 | return NULL; |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 54 | } |
Guido van Rossum | d490545 | 1991-05-05 20:00:36 +0000 | [diff] [blame] | 55 | return (*nm->nb_absolute)(v); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 56 | } |
| 57 | |
| 58 | static object * |
Guido van Rossum | 94390a4 | 1992-08-14 15:14:30 +0000 | [diff] [blame] | 59 | builtin_apply(self, args) |
Guido van Rossum | c02e15c | 1991-12-16 13:03:00 +0000 | [diff] [blame] | 60 | object *self; |
Guido van Rossum | 94390a4 | 1992-08-14 15:14:30 +0000 | [diff] [blame] | 61 | object *args; |
Guido van Rossum | c02e15c | 1991-12-16 13:03:00 +0000 | [diff] [blame] | 62 | { |
Guido van Rossum | 94390a4 | 1992-08-14 15:14:30 +0000 | [diff] [blame] | 63 | object *func, *arglist; |
| 64 | if (!getargs(args, "(OO)", &func, &arglist)) |
Guido van Rossum | c02e15c | 1991-12-16 13:03:00 +0000 | [diff] [blame] | 65 | return NULL; |
Guido van Rossum | 2d95185 | 1994-08-29 12:52:16 +0000 | [diff] [blame] | 66 | if (!is_tupleobject(arglist)) { |
| 67 | err_setstr(TypeError, "apply() 2nd argument must be tuple"); |
| 68 | return NULL; |
| 69 | } |
Guido van Rossum | 94390a4 | 1992-08-14 15:14:30 +0000 | [diff] [blame] | 70 | return call_object(func, arglist); |
Guido van Rossum | c02e15c | 1991-12-16 13:03:00 +0000 | [diff] [blame] | 71 | } |
| 72 | |
Guido van Rossum | 2d95185 | 1994-08-29 12:52:16 +0000 | [diff] [blame] | 73 | static int |
| 74 | callable(x) |
| 75 | object *x; |
| 76 | { |
| 77 | if (x == NULL) |
| 78 | return 0; |
| 79 | if (x->ob_type->tp_call != NULL || |
| 80 | is_funcobject(x) || |
| 81 | is_instancemethodobject(x) || |
| 82 | is_methodobject(x) || |
| 83 | is_classobject(x)) |
| 84 | return 1; |
| 85 | if (is_instanceobject(x)) { |
| 86 | object *call = getattr(x, "__call__"); |
| 87 | if (call == NULL) { |
| 88 | err_clear(); |
| 89 | return 0; |
| 90 | } |
| 91 | /* Could test recursively but don't, for fear of endless |
| 92 | recursion if some joker sets self.__call__ = self */ |
| 93 | DECREF(call); |
| 94 | return 1; |
| 95 | } |
| 96 | return 0; |
| 97 | } |
| 98 | |
| 99 | static object * |
| 100 | builtin_callable(self, args) |
| 101 | object *self; |
| 102 | object *args; |
| 103 | { |
| 104 | if (args == NULL) { |
| 105 | err_setstr(TypeError, |
| 106 | "callable requires exactly one argument"); |
| 107 | return NULL; |
| 108 | } |
| 109 | return newintobject((long)callable(args)); |
| 110 | } |
| 111 | |
Guido van Rossum | c02e15c | 1991-12-16 13:03:00 +0000 | [diff] [blame] | 112 | static object * |
Guido van Rossum | e77a757 | 1993-11-03 15:01:26 +0000 | [diff] [blame] | 113 | builtin_filter(self, args) |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 114 | object *self; |
| 115 | object *args; |
| 116 | { |
Guido van Rossum | dc4b93d | 1993-10-27 14:56:44 +0000 | [diff] [blame] | 117 | object *func, *seq, *result; |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 118 | sequence_methods *sqf; |
Guido van Rossum | dc4b93d | 1993-10-27 14:56:44 +0000 | [diff] [blame] | 119 | int len; |
| 120 | register int i, j; |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 121 | |
Guido van Rossum | dc4b93d | 1993-10-27 14:56:44 +0000 | [diff] [blame] | 122 | if (!getargs(args, "(OO)", &func, &seq)) |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 123 | return NULL; |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 124 | |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 125 | if (is_stringobject(seq)) { |
| 126 | object *r = filterstring(func, seq); |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 127 | return r; |
| 128 | } |
| 129 | |
Guido van Rossum | dc4b93d | 1993-10-27 14:56:44 +0000 | [diff] [blame] | 130 | if (is_tupleobject(seq)) { |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 131 | object *r = filtertuple(func, seq); |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 132 | return r; |
| 133 | } |
| 134 | |
Guido van Rossum | dc4b93d | 1993-10-27 14:56:44 +0000 | [diff] [blame] | 135 | if ((sqf = seq->ob_type->tp_as_sequence) == NULL) { |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 136 | err_setstr(TypeError, |
Guido van Rossum | e77a757 | 1993-11-03 15:01:26 +0000 | [diff] [blame] | 137 | "argument 2 to filter() must be a sequence type"); |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 138 | goto Fail_2; |
| 139 | } |
| 140 | |
| 141 | if ((len = (*sqf->sq_length)(seq)) < 0) |
| 142 | goto Fail_2; |
| 143 | |
| 144 | if (is_listobject(seq) && seq->ob_refcnt == 1) { |
| 145 | INCREF(seq); |
| 146 | result = seq; |
| 147 | } |
Guido van Rossum | dc4b93d | 1993-10-27 14:56:44 +0000 | [diff] [blame] | 148 | else { |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 149 | if ((result = newlistobject(len)) == NULL) |
| 150 | goto Fail_2; |
Guido van Rossum | dc4b93d | 1993-10-27 14:56:44 +0000 | [diff] [blame] | 151 | } |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 152 | |
Guido van Rossum | 2d95185 | 1994-08-29 12:52:16 +0000 | [diff] [blame] | 153 | for (i = j = 0; ; ++i) { |
Guido van Rossum | dc4b93d | 1993-10-27 14:56:44 +0000 | [diff] [blame] | 154 | object *item, *good; |
| 155 | int ok; |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 156 | |
Guido van Rossum | 2d95185 | 1994-08-29 12:52:16 +0000 | [diff] [blame] | 157 | if ((item = (*sqf->sq_item)(seq, i)) == NULL) { |
| 158 | if (i < len) |
| 159 | goto Fail_1; |
| 160 | if (err_occurred() == IndexError) { |
| 161 | err_clear(); |
| 162 | break; |
| 163 | } |
Guido van Rossum | dc4b93d | 1993-10-27 14:56:44 +0000 | [diff] [blame] | 164 | goto Fail_1; |
Guido van Rossum | 2d95185 | 1994-08-29 12:52:16 +0000 | [diff] [blame] | 165 | } |
Guido van Rossum | dc4b93d | 1993-10-27 14:56:44 +0000 | [diff] [blame] | 166 | |
| 167 | if (func == None) { |
| 168 | good = item; |
| 169 | } |
| 170 | else { |
| 171 | object *arg = mkvalue("(O)", item); |
| 172 | DECREF(item); |
| 173 | if (arg == NULL) |
| 174 | goto Fail_1; |
| 175 | good = call_object(func, arg); |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 176 | DECREF(arg); |
Guido van Rossum | dc4b93d | 1993-10-27 14:56:44 +0000 | [diff] [blame] | 177 | if (good == NULL) |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 178 | goto Fail_1; |
| 179 | } |
Guido van Rossum | dc4b93d | 1993-10-27 14:56:44 +0000 | [diff] [blame] | 180 | ok = testbool(good); |
| 181 | DECREF(good); |
| 182 | if (ok) { |
| 183 | INCREF(item); |
Guido van Rossum | 2d95185 | 1994-08-29 12:52:16 +0000 | [diff] [blame] | 184 | if (j < len) { |
| 185 | if (setlistitem(result, j++, item) < 0) |
| 186 | goto Fail_1; |
| 187 | } |
| 188 | else { |
| 189 | j++; |
| 190 | if (addlistitem(result, item) < 0) |
| 191 | goto Fail_1; |
| 192 | } |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 193 | } |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 194 | } |
| 195 | |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 196 | |
Guido van Rossum | 2d95185 | 1994-08-29 12:52:16 +0000 | [diff] [blame] | 197 | if (j < len && setlistslice(result, j, len, NULL) < 0) |
Guido van Rossum | dc4b93d | 1993-10-27 14:56:44 +0000 | [diff] [blame] | 198 | goto Fail_1; |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 199 | |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 200 | return result; |
| 201 | |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 202 | Fail_1: |
| 203 | DECREF(result); |
| 204 | Fail_2: |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 205 | return NULL; |
| 206 | } |
| 207 | |
| 208 | static object * |
Guido van Rossum | 94390a4 | 1992-08-14 15:14:30 +0000 | [diff] [blame] | 209 | builtin_chr(self, args) |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 210 | object *self; |
Guido van Rossum | 94390a4 | 1992-08-14 15:14:30 +0000 | [diff] [blame] | 211 | object *args; |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 212 | { |
| 213 | long x; |
| 214 | char s[1]; |
Guido van Rossum | 94390a4 | 1992-08-14 15:14:30 +0000 | [diff] [blame] | 215 | if (!getargs(args, "l", &x)) |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 216 | return NULL; |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 217 | if (x < 0 || x >= 256) { |
Guido van Rossum | 50afb7a | 1991-12-10 13:52:31 +0000 | [diff] [blame] | 218 | err_setstr(ValueError, "chr() arg not in range(256)"); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 219 | return NULL; |
| 220 | } |
| 221 | s[0] = x; |
| 222 | return newsizedstringobject(s, 1); |
| 223 | } |
| 224 | |
| 225 | static object * |
Guido van Rossum | a9e7dc1 | 1992-10-18 18:53:57 +0000 | [diff] [blame] | 226 | builtin_cmp(self, args) |
| 227 | object *self; |
| 228 | object *args; |
| 229 | { |
| 230 | object *a, *b; |
| 231 | if (!getargs(args, "(OO)", &a, &b)) |
| 232 | return NULL; |
| 233 | return newintobject((long)cmpobject(a, b)); |
| 234 | } |
| 235 | |
| 236 | static object * |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 237 | builtin_coerce(self, args) |
| 238 | object *self; |
| 239 | object *args; |
| 240 | { |
| 241 | object *v, *w; |
| 242 | object *res; |
| 243 | |
| 244 | if (!getargs(args, "(OO)", &v, &w)) |
| 245 | return NULL; |
| 246 | if (coerce(&v, &w) < 0) |
| 247 | return NULL; |
| 248 | res = mkvalue("(OO)", v, w); |
| 249 | DECREF(v); |
| 250 | DECREF(w); |
| 251 | return res; |
| 252 | } |
| 253 | |
| 254 | static object * |
Guido van Rossum | 5b72218 | 1993-03-30 17:46:03 +0000 | [diff] [blame] | 255 | builtin_compile(self, args) |
| 256 | object *self; |
| 257 | object *args; |
| 258 | { |
| 259 | char *str; |
| 260 | char *filename; |
| 261 | char *startstr; |
| 262 | int start; |
| 263 | if (!getargs(args, "(sss)", &str, &filename, &startstr)) |
| 264 | return NULL; |
| 265 | if (strcmp(startstr, "exec") == 0) |
| 266 | start = file_input; |
| 267 | else if (strcmp(startstr, "eval") == 0) |
| 268 | start = eval_input; |
| 269 | else { |
| 270 | err_setstr(ValueError, |
| 271 | "compile() mode must be 'exec' or 'eval'"); |
| 272 | return NULL; |
| 273 | } |
| 274 | return compile_string(str, filename, start); |
| 275 | } |
| 276 | |
| 277 | static object * |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 278 | builtin_dir(self, v) |
| 279 | object *self; |
| 280 | object *v; |
| 281 | { |
| 282 | object *d; |
| 283 | if (v == NULL) { |
| 284 | d = getlocals(); |
Guido van Rossum | dc8a108 | 1991-10-20 20:11:03 +0000 | [diff] [blame] | 285 | INCREF(d); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 286 | } |
| 287 | else { |
Guido van Rossum | dc8a108 | 1991-10-20 20:11:03 +0000 | [diff] [blame] | 288 | d = getattr(v, "__dict__"); |
| 289 | if (d == NULL) { |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 290 | err_setstr(TypeError, |
Guido van Rossum | 006bcd4 | 1991-10-24 14:54:44 +0000 | [diff] [blame] | 291 | "dir() argument must have __dict__ attribute"); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 292 | return NULL; |
| 293 | } |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 294 | } |
Guido van Rossum | 006bcd4 | 1991-10-24 14:54:44 +0000 | [diff] [blame] | 295 | if (is_dictobject(d)) { |
Guido van Rossum | dc8a108 | 1991-10-20 20:11:03 +0000 | [diff] [blame] | 296 | v = getdictkeys(d); |
| 297 | if (sortlist(v) != 0) { |
| 298 | DECREF(v); |
| 299 | v = NULL; |
| 300 | } |
| 301 | } |
Guido van Rossum | 006bcd4 | 1991-10-24 14:54:44 +0000 | [diff] [blame] | 302 | else { |
| 303 | v = newlistobject(0); |
| 304 | } |
Guido van Rossum | dc8a108 | 1991-10-20 20:11:03 +0000 | [diff] [blame] | 305 | DECREF(d); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 306 | return v; |
| 307 | } |
| 308 | |
| 309 | static object * |
Guido van Rossum | c6bb8f7 | 1991-07-01 18:42:41 +0000 | [diff] [blame] | 310 | builtin_divmod(self, args) |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 311 | object *self; |
Guido van Rossum | c6bb8f7 | 1991-07-01 18:42:41 +0000 | [diff] [blame] | 312 | object *args; |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 313 | { |
Guido van Rossum | c6bb8f7 | 1991-07-01 18:42:41 +0000 | [diff] [blame] | 314 | object *v, *w, *x; |
Guido van Rossum | 94390a4 | 1992-08-14 15:14:30 +0000 | [diff] [blame] | 315 | if (!getargs(args, "(OO)", &v, &w)) |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 316 | return NULL; |
Guido van Rossum | c6bb8f7 | 1991-07-01 18:42:41 +0000 | [diff] [blame] | 317 | if (v->ob_type->tp_as_number == NULL || |
| 318 | w->ob_type->tp_as_number == NULL) { |
Guido van Rossum | d490545 | 1991-05-05 20:00:36 +0000 | [diff] [blame] | 319 | err_setstr(TypeError, "divmod() requires numeric arguments"); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 320 | return NULL; |
| 321 | } |
Guido van Rossum | c6bb8f7 | 1991-07-01 18:42:41 +0000 | [diff] [blame] | 322 | if (coerce(&v, &w) != 0) |
| 323 | return NULL; |
| 324 | x = (*v->ob_type->tp_as_number->nb_divmod)(v, w); |
| 325 | DECREF(v); |
| 326 | DECREF(w); |
| 327 | return x; |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 328 | } |
| 329 | |
| 330 | static object * |
| 331 | exec_eval(v, start) |
| 332 | object *v; |
| 333 | int start; |
| 334 | { |
| 335 | object *str = NULL, *globals = NULL, *locals = NULL; |
Guido van Rossum | f08ab0a | 1992-03-04 16:41:41 +0000 | [diff] [blame] | 336 | char *s; |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 337 | int n; |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 338 | /* XXX This is a bit of a mess. Should make it varargs */ |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 339 | if (v != NULL) { |
Guido van Rossum | 5b72218 | 1993-03-30 17:46:03 +0000 | [diff] [blame] | 340 | if (is_tupleobject(v) && |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 341 | ((n = gettuplesize(v)) == 2 || n == 3)) { |
| 342 | str = gettupleitem(v, 0); |
| 343 | globals = gettupleitem(v, 1); |
| 344 | if (n == 3) |
| 345 | locals = gettupleitem(v, 2); |
| 346 | } |
Guido van Rossum | 5b72218 | 1993-03-30 17:46:03 +0000 | [diff] [blame] | 347 | else |
| 348 | str = v; |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 349 | } |
Guido van Rossum | 5b72218 | 1993-03-30 17:46:03 +0000 | [diff] [blame] | 350 | if (str == NULL || (!is_stringobject(str) && !is_codeobject(str)) || |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 351 | globals != NULL && !is_dictobject(globals) || |
| 352 | locals != NULL && !is_dictobject(locals)) { |
| 353 | err_setstr(TypeError, |
Guido van Rossum | 590baa4 | 1993-11-30 13:40:46 +0000 | [diff] [blame] | 354 | "eval arguments must be (string|code)[,dict[,dict]]"); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 355 | return NULL; |
| 356 | } |
Guido van Rossum | 590baa4 | 1993-11-30 13:40:46 +0000 | [diff] [blame] | 357 | |
Guido van Rossum | 5b72218 | 1993-03-30 17:46:03 +0000 | [diff] [blame] | 358 | if (is_codeobject(str)) |
| 359 | return eval_code((codeobject *) str, globals, locals, |
Guido van Rossum | 81daa32 | 1993-05-20 14:24:46 +0000 | [diff] [blame] | 360 | (object *)NULL, (object *)NULL); |
Guido van Rossum | f08ab0a | 1992-03-04 16:41:41 +0000 | [diff] [blame] | 361 | s = getstringvalue(str); |
Guido van Rossum | 94390a4 | 1992-08-14 15:14:30 +0000 | [diff] [blame] | 362 | if (strlen(s) != getstringsize(str)) { |
| 363 | err_setstr(ValueError, "embedded '\\0' in string arg"); |
| 364 | return NULL; |
| 365 | } |
Guido van Rossum | 590baa4 | 1993-11-30 13:40:46 +0000 | [diff] [blame] | 366 | if (start == eval_input) { |
Guido van Rossum | f08ab0a | 1992-03-04 16:41:41 +0000 | [diff] [blame] | 367 | while (*s == ' ' || *s == '\t') |
| 368 | s++; |
| 369 | } |
| 370 | return run_string(s, start, globals, locals); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 371 | } |
| 372 | |
| 373 | static object * |
| 374 | builtin_eval(self, v) |
| 375 | object *self; |
| 376 | object *v; |
| 377 | { |
| 378 | return exec_eval(v, eval_input); |
| 379 | } |
| 380 | |
| 381 | static object * |
Guido van Rossum | 0f61f8a | 1992-02-25 18:55:05 +0000 | [diff] [blame] | 382 | builtin_execfile(self, v) |
| 383 | object *self; |
| 384 | object *v; |
| 385 | { |
| 386 | object *str = NULL, *globals = NULL, *locals = NULL, *w; |
| 387 | FILE* fp; |
Guido van Rossum | 94390a4 | 1992-08-14 15:14:30 +0000 | [diff] [blame] | 388 | char *s; |
Guido van Rossum | 0f61f8a | 1992-02-25 18:55:05 +0000 | [diff] [blame] | 389 | int n; |
| 390 | if (v != NULL) { |
| 391 | if (is_stringobject(v)) |
| 392 | str = v; |
| 393 | else if (is_tupleobject(v) && |
| 394 | ((n = gettuplesize(v)) == 2 || n == 3)) { |
| 395 | str = gettupleitem(v, 0); |
| 396 | globals = gettupleitem(v, 1); |
| 397 | if (n == 3) |
| 398 | locals = gettupleitem(v, 2); |
| 399 | } |
| 400 | } |
| 401 | if (str == NULL || !is_stringobject(str) || |
| 402 | globals != NULL && !is_dictobject(globals) || |
| 403 | locals != NULL && !is_dictobject(locals)) { |
| 404 | err_setstr(TypeError, |
| 405 | "execfile arguments must be filename[,dict[,dict]]"); |
| 406 | return NULL; |
| 407 | } |
Guido van Rossum | 2b81dc9 | 1992-08-19 16:40:53 +0000 | [diff] [blame] | 408 | s = getstringvalue(str); |
Guido van Rossum | 94390a4 | 1992-08-14 15:14:30 +0000 | [diff] [blame] | 409 | if (strlen(s) != getstringsize(str)) { |
| 410 | err_setstr(ValueError, "embedded '\\0' in string arg"); |
| 411 | return NULL; |
| 412 | } |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 413 | BGN_SAVE |
Guido van Rossum | 94390a4 | 1992-08-14 15:14:30 +0000 | [diff] [blame] | 414 | fp = fopen(s, "r"); |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 415 | END_SAVE |
Guido van Rossum | 0f61f8a | 1992-02-25 18:55:05 +0000 | [diff] [blame] | 416 | if (fp == NULL) { |
| 417 | err_setstr(IOError, "execfile cannot open the file argument"); |
| 418 | return NULL; |
| 419 | } |
| 420 | w = run_file(fp, getstringvalue(str), file_input, globals, locals); |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 421 | BGN_SAVE |
Guido van Rossum | 0f61f8a | 1992-02-25 18:55:05 +0000 | [diff] [blame] | 422 | fclose(fp); |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 423 | END_SAVE |
Guido van Rossum | 0f61f8a | 1992-02-25 18:55:05 +0000 | [diff] [blame] | 424 | return w; |
| 425 | } |
| 426 | |
| 427 | static object * |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 428 | builtin_float(self, v) |
| 429 | object *self; |
| 430 | object *v; |
| 431 | { |
Guido van Rossum | 1899c2e | 1992-09-12 11:09:23 +0000 | [diff] [blame] | 432 | number_methods *nb; |
| 433 | |
| 434 | if (v == NULL || (nb = v->ob_type->tp_as_number) == NULL || |
| 435 | nb->nb_float == NULL) { |
| 436 | err_setstr(TypeError, |
| 437 | "float() argument can't be converted to float"); |
| 438 | return NULL; |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 439 | } |
Guido van Rossum | 1899c2e | 1992-09-12 11:09:23 +0000 | [diff] [blame] | 440 | return (*nb->nb_float)(v); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 441 | } |
| 442 | |
| 443 | static object * |
Guido van Rossum | 94390a4 | 1992-08-14 15:14:30 +0000 | [diff] [blame] | 444 | builtin_getattr(self, args) |
Guido van Rossum | 33894be | 1992-01-27 16:53:09 +0000 | [diff] [blame] | 445 | object *self; |
Guido van Rossum | 94390a4 | 1992-08-14 15:14:30 +0000 | [diff] [blame] | 446 | object *args; |
Guido van Rossum | 33894be | 1992-01-27 16:53:09 +0000 | [diff] [blame] | 447 | { |
Guido van Rossum | 94390a4 | 1992-08-14 15:14:30 +0000 | [diff] [blame] | 448 | object *v; |
Guido van Rossum | 9bfef44 | 1993-03-29 10:43:31 +0000 | [diff] [blame] | 449 | object *name; |
| 450 | if (!getargs(args, "(OS)", &v, &name)) |
Guido van Rossum | 33894be | 1992-01-27 16:53:09 +0000 | [diff] [blame] | 451 | return NULL; |
Guido van Rossum | 9bfef44 | 1993-03-29 10:43:31 +0000 | [diff] [blame] | 452 | return getattro(v, name); |
| 453 | } |
| 454 | |
| 455 | static object * |
| 456 | builtin_hasattr(self, args) |
| 457 | object *self; |
| 458 | object *args; |
| 459 | { |
| 460 | object *v; |
| 461 | object *name; |
| 462 | if (!getargs(args, "(OS)", &v, &name)) |
| 463 | return NULL; |
| 464 | v = getattro(v, name); |
| 465 | if (v == NULL) { |
| 466 | err_clear(); |
| 467 | return newintobject(0L); |
| 468 | } |
| 469 | DECREF(v); |
| 470 | return newintobject(1L); |
Guido van Rossum | 33894be | 1992-01-27 16:53:09 +0000 | [diff] [blame] | 471 | } |
| 472 | |
| 473 | static object * |
Guido van Rossum | 5b72218 | 1993-03-30 17:46:03 +0000 | [diff] [blame] | 474 | builtin_id(self, args) |
| 475 | object *self; |
| 476 | object *args; |
| 477 | { |
| 478 | object *v; |
| 479 | if (!getargs(args, "O", &v)) |
| 480 | return NULL; |
| 481 | return newintobject((long)v); |
| 482 | } |
| 483 | |
| 484 | static object * |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 485 | builtin_map(self, args) |
| 486 | object *self; |
| 487 | object *args; |
| 488 | { |
| 489 | typedef struct { |
| 490 | object *seq; |
| 491 | sequence_methods *sqf; |
| 492 | int len; |
| 493 | } sequence; |
| 494 | |
| 495 | object *func, *result; |
| 496 | sequence *seqs = NULL, *sqp; |
| 497 | int n, len, newfunc = 0; |
| 498 | register int i, j; |
| 499 | |
| 500 | if (args == NULL || !is_tupleobject(args)) { |
| 501 | err_setstr(TypeError, "map() requires at least two args"); |
| 502 | return NULL; |
| 503 | } |
| 504 | |
| 505 | func = gettupleitem(args, 0); |
| 506 | n = gettuplesize(args) - 1; |
| 507 | |
Guido van Rossum | dc4b93d | 1993-10-27 14:56:44 +0000 | [diff] [blame] | 508 | if ((seqs = NEW(sequence, n)) == NULL) { |
| 509 | err_nomem(); |
| 510 | goto Fail_2; |
| 511 | } |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 512 | |
Guido van Rossum | 2d95185 | 1994-08-29 12:52:16 +0000 | [diff] [blame] | 513 | for (len = 0, i = 0, sqp = seqs; i < n; ++i, ++sqp) { |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 514 | int curlen; |
| 515 | |
| 516 | if ((sqp->seq = gettupleitem(args, i + 1)) == NULL) |
| 517 | goto Fail_2; |
| 518 | |
| 519 | if (! (sqp->sqf = sqp->seq->ob_type->tp_as_sequence)) { |
| 520 | static char errmsg[] = |
| 521 | "argument %d to map() must be a sequence object"; |
| 522 | char errbuf[sizeof(errmsg) + 3]; |
| 523 | |
| 524 | sprintf(errbuf, errmsg, i+2); |
| 525 | err_setstr(TypeError, errbuf); |
| 526 | goto Fail_2; |
| 527 | } |
| 528 | |
| 529 | if ((curlen = sqp->len = (*sqp->sqf->sq_length)(sqp->seq)) < 0) |
| 530 | goto Fail_2; |
| 531 | |
| 532 | if (curlen > len) |
| 533 | len = curlen; |
| 534 | } |
| 535 | |
| 536 | if ((result = (object *) newlistobject(len)) == NULL) |
| 537 | goto Fail_2; |
| 538 | |
Guido van Rossum | dc4b93d | 1993-10-27 14:56:44 +0000 | [diff] [blame] | 539 | /* XXX Special case map(None, single_list) could be more efficient */ |
Guido van Rossum | 2d95185 | 1994-08-29 12:52:16 +0000 | [diff] [blame] | 540 | for (i = 0; ; ++i) { |
| 541 | object *arglist, *item, *value; |
| 542 | int any = 0; |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 543 | |
Guido van Rossum | 2d95185 | 1994-08-29 12:52:16 +0000 | [diff] [blame] | 544 | if (func == None && n == 1) |
| 545 | arglist = NULL; |
| 546 | else { |
| 547 | if ((arglist = newtupleobject(n)) == NULL) |
| 548 | goto Fail_1; |
| 549 | } |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 550 | |
| 551 | for (j = 0, sqp = seqs; j < n; ++j, ++sqp) { |
Guido van Rossum | 2d95185 | 1994-08-29 12:52:16 +0000 | [diff] [blame] | 552 | if (sqp->len < 0) { |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 553 | INCREF(None); |
Guido van Rossum | dc4b93d | 1993-10-27 14:56:44 +0000 | [diff] [blame] | 554 | item = None; |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 555 | } |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 556 | else { |
Guido van Rossum | dc4b93d | 1993-10-27 14:56:44 +0000 | [diff] [blame] | 557 | item = (*sqp->sqf->sq_item)(sqp->seq, i); |
Guido van Rossum | 2d95185 | 1994-08-29 12:52:16 +0000 | [diff] [blame] | 558 | if (item == NULL) { |
| 559 | if (i < sqp->len) |
| 560 | goto Fail_0; |
| 561 | if (err_occurred() == IndexError) { |
| 562 | err_clear(); |
| 563 | INCREF(None); |
| 564 | item = None; |
| 565 | sqp->len = -1; |
| 566 | } |
| 567 | else { |
| 568 | goto Fail_0; |
| 569 | } |
| 570 | } |
| 571 | else |
| 572 | any = 1; |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 573 | |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 574 | } |
Guido van Rossum | 2d95185 | 1994-08-29 12:52:16 +0000 | [diff] [blame] | 575 | if (!arglist) |
| 576 | break; |
| 577 | if (settupleitem(arglist, j, item) < 0) { |
| 578 | DECREF(item); |
Guido van Rossum | dc4b93d | 1993-10-27 14:56:44 +0000 | [diff] [blame] | 579 | goto Fail_0; |
Guido van Rossum | 2d95185 | 1994-08-29 12:52:16 +0000 | [diff] [blame] | 580 | } |
Guido van Rossum | dc4b93d | 1993-10-27 14:56:44 +0000 | [diff] [blame] | 581 | continue; |
| 582 | |
| 583 | Fail_0: |
Guido van Rossum | 2d95185 | 1994-08-29 12:52:16 +0000 | [diff] [blame] | 584 | XDECREF(arglist); |
Guido van Rossum | dc4b93d | 1993-10-27 14:56:44 +0000 | [diff] [blame] | 585 | goto Fail_1; |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 586 | } |
| 587 | |
Guido van Rossum | 2d95185 | 1994-08-29 12:52:16 +0000 | [diff] [blame] | 588 | if (!arglist) |
| 589 | arglist = item; |
| 590 | |
| 591 | if (!any) { |
| 592 | DECREF(arglist); |
| 593 | break; |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 594 | } |
Guido van Rossum | 2d95185 | 1994-08-29 12:52:16 +0000 | [diff] [blame] | 595 | |
| 596 | if (func == None) |
| 597 | value = arglist; |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 598 | else { |
Guido van Rossum | 2d95185 | 1994-08-29 12:52:16 +0000 | [diff] [blame] | 599 | value = call_object(func, arglist); |
Guido van Rossum | dc4b93d | 1993-10-27 14:56:44 +0000 | [diff] [blame] | 600 | DECREF(arglist); |
| 601 | if (value == NULL) |
| 602 | goto Fail_1; |
Guido van Rossum | 2d95185 | 1994-08-29 12:52:16 +0000 | [diff] [blame] | 603 | } |
| 604 | if (i >= len) { |
| 605 | if (addlistitem(result, value) < 0) |
| 606 | goto Fail_1; |
| 607 | } |
| 608 | else { |
| 609 | if (setlistitem(result, i, value) < 0) |
Guido van Rossum | dc4b93d | 1993-10-27 14:56:44 +0000 | [diff] [blame] | 610 | goto Fail_1; |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 611 | } |
| 612 | } |
| 613 | |
Guido van Rossum | 2d95185 | 1994-08-29 12:52:16 +0000 | [diff] [blame] | 614 | DEL(seqs); |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 615 | return result; |
| 616 | |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 617 | Fail_1: |
| 618 | DECREF(result); |
| 619 | Fail_2: |
Guido van Rossum | dc4b93d | 1993-10-27 14:56:44 +0000 | [diff] [blame] | 620 | if (seqs) DEL(seqs); |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 621 | return NULL; |
| 622 | } |
| 623 | |
| 624 | static object * |
Guido van Rossum | 94390a4 | 1992-08-14 15:14:30 +0000 | [diff] [blame] | 625 | builtin_setattr(self, args) |
Guido van Rossum | 33894be | 1992-01-27 16:53:09 +0000 | [diff] [blame] | 626 | object *self; |
Guido van Rossum | 94390a4 | 1992-08-14 15:14:30 +0000 | [diff] [blame] | 627 | object *args; |
Guido van Rossum | 33894be | 1992-01-27 16:53:09 +0000 | [diff] [blame] | 628 | { |
Guido van Rossum | 94390a4 | 1992-08-14 15:14:30 +0000 | [diff] [blame] | 629 | object *v; |
Guido van Rossum | 9bfef44 | 1993-03-29 10:43:31 +0000 | [diff] [blame] | 630 | object *name; |
Guido van Rossum | 94390a4 | 1992-08-14 15:14:30 +0000 | [diff] [blame] | 631 | object *value; |
Guido van Rossum | 9bfef44 | 1993-03-29 10:43:31 +0000 | [diff] [blame] | 632 | if (!getargs(args, "(OSO)", &v, &name, &value)) |
Guido van Rossum | 33894be | 1992-01-27 16:53:09 +0000 | [diff] [blame] | 633 | return NULL; |
Guido van Rossum | 9bfef44 | 1993-03-29 10:43:31 +0000 | [diff] [blame] | 634 | if (setattro(v, name, value) != 0) |
Guido van Rossum | 33894be | 1992-01-27 16:53:09 +0000 | [diff] [blame] | 635 | return NULL; |
| 636 | INCREF(None); |
| 637 | return None; |
| 638 | } |
| 639 | |
| 640 | static object * |
Guido van Rossum | 9bfef44 | 1993-03-29 10:43:31 +0000 | [diff] [blame] | 641 | builtin_hash(self, args) |
| 642 | object *self; |
| 643 | object *args; |
| 644 | { |
| 645 | object *v; |
| 646 | long x; |
| 647 | if (!getargs(args, "O", &v)) |
| 648 | return NULL; |
| 649 | x = hashobject(v); |
| 650 | if (x == -1) |
| 651 | return NULL; |
| 652 | return newintobject(x); |
| 653 | } |
| 654 | |
| 655 | static object * |
Guido van Rossum | 006bcd4 | 1991-10-24 14:54:44 +0000 | [diff] [blame] | 656 | builtin_hex(self, v) |
| 657 | object *self; |
| 658 | object *v; |
| 659 | { |
Guido van Rossum | 1899c2e | 1992-09-12 11:09:23 +0000 | [diff] [blame] | 660 | number_methods *nb; |
| 661 | |
| 662 | if (v == NULL || (nb = v->ob_type->tp_as_number) == NULL || |
| 663 | nb->nb_hex == NULL) { |
| 664 | err_setstr(TypeError, |
| 665 | "hex() argument can't be converted to hex"); |
| 666 | return NULL; |
Guido van Rossum | 006bcd4 | 1991-10-24 14:54:44 +0000 | [diff] [blame] | 667 | } |
Guido van Rossum | 1899c2e | 1992-09-12 11:09:23 +0000 | [diff] [blame] | 668 | return (*nb->nb_hex)(v); |
Guido van Rossum | 006bcd4 | 1991-10-24 14:54:44 +0000 | [diff] [blame] | 669 | } |
| 670 | |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 671 | static object *builtin_raw_input PROTO((object *, object *)); |
| 672 | |
Guido van Rossum | 006bcd4 | 1991-10-24 14:54:44 +0000 | [diff] [blame] | 673 | static object * |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 674 | builtin_input(self, v) |
| 675 | object *self; |
| 676 | object *v; |
| 677 | { |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 678 | object *line = builtin_raw_input(self, v); |
| 679 | if (line == NULL) |
| 680 | return line; |
| 681 | v = exec_eval(line, eval_input); |
| 682 | DECREF(line); |
| 683 | return v; |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 684 | } |
| 685 | |
| 686 | static object * |
| 687 | builtin_int(self, v) |
| 688 | object *self; |
| 689 | object *v; |
| 690 | { |
Guido van Rossum | 1899c2e | 1992-09-12 11:09:23 +0000 | [diff] [blame] | 691 | number_methods *nb; |
| 692 | |
| 693 | if (v == NULL || (nb = v->ob_type->tp_as_number) == NULL || |
| 694 | nb->nb_int == NULL) { |
| 695 | err_setstr(TypeError, |
| 696 | "int() argument can't be converted to int"); |
| 697 | return NULL; |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 698 | } |
Guido van Rossum | 1899c2e | 1992-09-12 11:09:23 +0000 | [diff] [blame] | 699 | return (*nb->nb_int)(v); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 700 | } |
| 701 | |
| 702 | static object * |
| 703 | builtin_len(self, v) |
| 704 | object *self; |
| 705 | object *v; |
| 706 | { |
| 707 | long len; |
| 708 | typeobject *tp; |
| 709 | if (v == NULL) { |
| 710 | err_setstr(TypeError, "len() without argument"); |
| 711 | return NULL; |
| 712 | } |
| 713 | tp = v->ob_type; |
| 714 | if (tp->tp_as_sequence != NULL) { |
| 715 | len = (*tp->tp_as_sequence->sq_length)(v); |
| 716 | } |
| 717 | else if (tp->tp_as_mapping != NULL) { |
| 718 | len = (*tp->tp_as_mapping->mp_length)(v); |
| 719 | } |
| 720 | else { |
| 721 | err_setstr(TypeError, "len() of unsized object"); |
| 722 | return NULL; |
| 723 | } |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 724 | if (len < 0) |
| 725 | return NULL; |
| 726 | else |
| 727 | return newintobject(len); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 728 | } |
| 729 | |
| 730 | static object * |
Guido van Rossum | d490545 | 1991-05-05 20:00:36 +0000 | [diff] [blame] | 731 | builtin_long(self, v) |
| 732 | object *self; |
| 733 | object *v; |
| 734 | { |
Guido van Rossum | 1899c2e | 1992-09-12 11:09:23 +0000 | [diff] [blame] | 735 | number_methods *nb; |
| 736 | |
| 737 | if (v == NULL || (nb = v->ob_type->tp_as_number) == NULL || |
| 738 | nb->nb_long == NULL) { |
| 739 | err_setstr(TypeError, |
| 740 | "long() argument can't be converted to long"); |
| 741 | return NULL; |
Guido van Rossum | d490545 | 1991-05-05 20:00:36 +0000 | [diff] [blame] | 742 | } |
Guido van Rossum | 1899c2e | 1992-09-12 11:09:23 +0000 | [diff] [blame] | 743 | return (*nb->nb_long)(v); |
Guido van Rossum | d490545 | 1991-05-05 20:00:36 +0000 | [diff] [blame] | 744 | } |
| 745 | |
| 746 | static object * |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 747 | min_max(v, sign) |
| 748 | object *v; |
| 749 | int sign; |
| 750 | { |
Guido van Rossum | 2d95185 | 1994-08-29 12:52:16 +0000 | [diff] [blame] | 751 | int i; |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 752 | object *w, *x; |
| 753 | sequence_methods *sq; |
| 754 | if (v == NULL) { |
| 755 | err_setstr(TypeError, "min() or max() without argument"); |
| 756 | return NULL; |
| 757 | } |
| 758 | sq = v->ob_type->tp_as_sequence; |
| 759 | if (sq == NULL) { |
| 760 | err_setstr(TypeError, "min() or max() of non-sequence"); |
| 761 | return NULL; |
| 762 | } |
Guido van Rossum | 2d95185 | 1994-08-29 12:52:16 +0000 | [diff] [blame] | 763 | w = NULL; |
| 764 | for (i = 0; ; i++) { |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 765 | x = (*sq->sq_item)(v, i); /* Implies INCREF */ |
Guido van Rossum | 2d95185 | 1994-08-29 12:52:16 +0000 | [diff] [blame] | 766 | if (x == NULL) { |
| 767 | if (err_occurred() == IndexError) { |
| 768 | err_clear(); |
| 769 | break; |
| 770 | } |
| 771 | XDECREF(w); |
| 772 | return NULL; |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 773 | } |
Guido van Rossum | 2d95185 | 1994-08-29 12:52:16 +0000 | [diff] [blame] | 774 | if (w == NULL) |
| 775 | w = x; |
| 776 | else { |
| 777 | if (cmpobject(x, w) * sign > 0) { |
| 778 | DECREF(w); |
| 779 | w = x; |
| 780 | } |
| 781 | else |
| 782 | DECREF(x); |
| 783 | } |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 784 | } |
Guido van Rossum | 2d95185 | 1994-08-29 12:52:16 +0000 | [diff] [blame] | 785 | if (w == NULL) |
| 786 | err_setstr(ValueError, "min() or max() of empty sequence"); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 787 | return w; |
| 788 | } |
| 789 | |
| 790 | static object * |
| 791 | builtin_min(self, v) |
| 792 | object *self; |
| 793 | object *v; |
| 794 | { |
| 795 | return min_max(v, -1); |
| 796 | } |
| 797 | |
| 798 | static object * |
| 799 | builtin_max(self, v) |
| 800 | object *self; |
| 801 | object *v; |
| 802 | { |
| 803 | return min_max(v, 1); |
| 804 | } |
| 805 | |
| 806 | static object * |
Guido van Rossum | 006bcd4 | 1991-10-24 14:54:44 +0000 | [diff] [blame] | 807 | builtin_oct(self, v) |
| 808 | object *self; |
| 809 | object *v; |
| 810 | { |
Guido van Rossum | 1899c2e | 1992-09-12 11:09:23 +0000 | [diff] [blame] | 811 | number_methods *nb; |
| 812 | |
| 813 | if (v == NULL || (nb = v->ob_type->tp_as_number) == NULL || |
| 814 | nb->nb_oct == NULL) { |
| 815 | err_setstr(TypeError, |
| 816 | "oct() argument can't be converted to oct"); |
| 817 | return NULL; |
Guido van Rossum | 006bcd4 | 1991-10-24 14:54:44 +0000 | [diff] [blame] | 818 | } |
Guido van Rossum | 1899c2e | 1992-09-12 11:09:23 +0000 | [diff] [blame] | 819 | return (*nb->nb_oct)(v); |
Guido van Rossum | 006bcd4 | 1991-10-24 14:54:44 +0000 | [diff] [blame] | 820 | } |
| 821 | |
| 822 | static object * |
Guido van Rossum | 94390a4 | 1992-08-14 15:14:30 +0000 | [diff] [blame] | 823 | builtin_open(self, args) |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 824 | object *self; |
Guido van Rossum | 94390a4 | 1992-08-14 15:14:30 +0000 | [diff] [blame] | 825 | object *args; |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 826 | { |
Guido van Rossum | 2d95185 | 1994-08-29 12:52:16 +0000 | [diff] [blame] | 827 | char *name; |
| 828 | char *mode = "r"; |
| 829 | int bufsize = -1; |
| 830 | object *f; |
| 831 | if (!getargs(args, "s", &name) && |
| 832 | (err_clear(), !getargs(args, "(ss)", &name, &mode)) && |
| 833 | (err_clear(), !getargs(args, "(ssi)", &name, &mode, &bufsize))) |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 834 | return NULL; |
Guido van Rossum | 2d95185 | 1994-08-29 12:52:16 +0000 | [diff] [blame] | 835 | f = newfileobject(name, mode); |
| 836 | if (f != NULL) |
| 837 | setfilebufsize(f, bufsize); |
| 838 | return f; |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 839 | } |
| 840 | |
| 841 | static object * |
Guido van Rossum | 94390a4 | 1992-08-14 15:14:30 +0000 | [diff] [blame] | 842 | builtin_ord(self, args) |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 843 | object *self; |
Guido van Rossum | 94390a4 | 1992-08-14 15:14:30 +0000 | [diff] [blame] | 844 | object *args; |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 845 | { |
Guido van Rossum | 94390a4 | 1992-08-14 15:14:30 +0000 | [diff] [blame] | 846 | char *s; |
| 847 | int len; |
| 848 | if (!getargs(args, "s#", &s, &len)) |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 849 | return NULL; |
Guido van Rossum | 94390a4 | 1992-08-14 15:14:30 +0000 | [diff] [blame] | 850 | if (len != 1) { |
Guido van Rossum | 50afb7a | 1991-12-10 13:52:31 +0000 | [diff] [blame] | 851 | err_setstr(ValueError, "ord() arg must have length 1"); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 852 | return NULL; |
| 853 | } |
Guido van Rossum | 94390a4 | 1992-08-14 15:14:30 +0000 | [diff] [blame] | 854 | return newintobject((long)(s[0] & 0xff)); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 855 | } |
| 856 | |
| 857 | static object * |
Guido van Rossum | c6bb8f7 | 1991-07-01 18:42:41 +0000 | [diff] [blame] | 858 | builtin_pow(self, args) |
Guido van Rossum | d490545 | 1991-05-05 20:00:36 +0000 | [diff] [blame] | 859 | object *self; |
Guido van Rossum | c6bb8f7 | 1991-07-01 18:42:41 +0000 | [diff] [blame] | 860 | object *args; |
Guido van Rossum | d490545 | 1991-05-05 20:00:36 +0000 | [diff] [blame] | 861 | { |
Guido van Rossum | df05ac6 | 1994-08-29 12:52:37 +0000 | [diff] [blame^] | 862 | object *v, *w, *z, *x; |
| 863 | z = None; |
| 864 | if (!getargs(args, "(OO)", &v, &w)) { |
| 865 | err_clear(); |
| 866 | if (!getargs(args, "(OOO)", &v, &w, &z)) { |
| 867 | return NULL; |
| 868 | } |
| 869 | } |
Guido van Rossum | c6bb8f7 | 1991-07-01 18:42:41 +0000 | [diff] [blame] | 870 | if (v->ob_type->tp_as_number == NULL || |
Guido van Rossum | df05ac6 | 1994-08-29 12:52:37 +0000 | [diff] [blame^] | 871 | (z!=None && z->ob_type->tp_as_number == NULL) || |
| 872 | w->ob_type->tp_as_number == NULL) { |
Guido van Rossum | d490545 | 1991-05-05 20:00:36 +0000 | [diff] [blame] | 873 | err_setstr(TypeError, "pow() requires numeric arguments"); |
| 874 | return NULL; |
| 875 | } |
Guido van Rossum | c6bb8f7 | 1991-07-01 18:42:41 +0000 | [diff] [blame] | 876 | if (coerce(&v, &w) != 0) |
| 877 | return NULL; |
Guido van Rossum | df05ac6 | 1994-08-29 12:52:37 +0000 | [diff] [blame^] | 878 | if (z!=None) { |
| 879 | if (coerce(&w, &z) != 0) |
| 880 | return NULL; |
| 881 | if (coerce(&v, &z) != 0) |
| 882 | return NULL; |
| 883 | } |
| 884 | x = (*v->ob_type->tp_as_number->nb_power)(v, w, z); |
Guido van Rossum | c6bb8f7 | 1991-07-01 18:42:41 +0000 | [diff] [blame] | 885 | DECREF(v); |
| 886 | DECREF(w); |
Guido van Rossum | df05ac6 | 1994-08-29 12:52:37 +0000 | [diff] [blame^] | 887 | if (z!=None) {DECREF(w); DECREF(v); DECREF(z); DECREF(z);} |
Guido van Rossum | c6bb8f7 | 1991-07-01 18:42:41 +0000 | [diff] [blame] | 888 | return x; |
Guido van Rossum | d490545 | 1991-05-05 20:00:36 +0000 | [diff] [blame] | 889 | } |
| 890 | |
| 891 | static object * |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 892 | builtin_range(self, v) |
| 893 | object *self; |
| 894 | object *v; |
| 895 | { |
| 896 | static char *errmsg = "range() requires 1-3 int arguments"; |
| 897 | int i, n; |
| 898 | long ilow, ihigh, istep; |
| 899 | if (v != NULL && is_intobject(v)) { |
| 900 | ilow = 0; ihigh = getintvalue(v); istep = 1; |
| 901 | } |
| 902 | else if (v == NULL || !is_tupleobject(v)) { |
| 903 | err_setstr(TypeError, errmsg); |
| 904 | return NULL; |
| 905 | } |
| 906 | else { |
| 907 | n = gettuplesize(v); |
| 908 | if (n < 1 || n > 3) { |
| 909 | err_setstr(TypeError, errmsg); |
| 910 | return NULL; |
| 911 | } |
| 912 | for (i = 0; i < n; i++) { |
| 913 | if (!is_intobject(gettupleitem(v, i))) { |
| 914 | err_setstr(TypeError, errmsg); |
| 915 | return NULL; |
| 916 | } |
| 917 | } |
| 918 | if (n == 3) { |
| 919 | istep = getintvalue(gettupleitem(v, 2)); |
| 920 | --n; |
| 921 | } |
| 922 | else |
| 923 | istep = 1; |
| 924 | ihigh = getintvalue(gettupleitem(v, --n)); |
| 925 | if (n > 0) |
| 926 | ilow = getintvalue(gettupleitem(v, 0)); |
| 927 | else |
| 928 | ilow = 0; |
| 929 | } |
| 930 | if (istep == 0) { |
Guido van Rossum | 50afb7a | 1991-12-10 13:52:31 +0000 | [diff] [blame] | 931 | err_setstr(ValueError, "zero step for range()"); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 932 | return NULL; |
| 933 | } |
| 934 | /* XXX ought to check overflow of subtraction */ |
| 935 | if (istep > 0) |
| 936 | n = (ihigh - ilow + istep - 1) / istep; |
| 937 | else |
| 938 | n = (ihigh - ilow + istep + 1) / istep; |
| 939 | if (n < 0) |
| 940 | n = 0; |
| 941 | v = newlistobject(n); |
| 942 | if (v == NULL) |
| 943 | return NULL; |
| 944 | for (i = 0; i < n; i++) { |
| 945 | object *w = newintobject(ilow); |
| 946 | if (w == NULL) { |
| 947 | DECREF(v); |
| 948 | return NULL; |
| 949 | } |
| 950 | setlistitem(v, i, w); |
| 951 | ilow += istep; |
| 952 | } |
| 953 | return v; |
| 954 | } |
| 955 | |
| 956 | static object * |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 957 | builtin_xrange(self, v) |
| 958 | object *self; |
| 959 | object *v; |
| 960 | { |
| 961 | static char *errmsg = "xrange() requires 1-3 int arguments"; |
| 962 | int i, n; |
| 963 | long start, stop, step, len; |
| 964 | if (v != NULL && is_intobject(v)) |
| 965 | start = 0, stop = getintvalue(v), step = 1; |
| 966 | |
| 967 | else if (v == NULL || !is_tupleobject(v)) { |
| 968 | err_setstr(TypeError, errmsg); |
| 969 | return NULL; |
| 970 | } |
| 971 | else { |
| 972 | n = gettuplesize(v); |
| 973 | if (n < 1 || n > 3) { |
| 974 | err_setstr(TypeError, errmsg); |
| 975 | return NULL; |
| 976 | } |
| 977 | for (i = 0; i < n; i++) { |
| 978 | if (!is_intobject(gettupleitem(v, i))) { |
| 979 | err_setstr(TypeError, errmsg); |
| 980 | return NULL; |
| 981 | } |
| 982 | } |
| 983 | if (n == 3) { |
| 984 | step = getintvalue(gettupleitem(v, 2)); |
| 985 | --n; |
| 986 | } |
| 987 | else |
| 988 | step = 1; |
| 989 | stop = getintvalue(gettupleitem(v, --n)); |
| 990 | if (n > 0) |
| 991 | start = getintvalue(gettupleitem(v, 0)); |
| 992 | else |
| 993 | start = 0; |
| 994 | } |
| 995 | |
| 996 | if (step == 0) { |
| 997 | err_setstr(ValueError, "zero step for xrange()"); |
| 998 | return NULL; |
| 999 | } |
| 1000 | |
| 1001 | len = (stop - start + step + ((step > 0) ? -1 : 1)) / step; |
| 1002 | if (len < 0) |
| 1003 | len = 0; |
| 1004 | |
Guido van Rossum | 7d6aa51 | 1993-12-21 22:50:31 +0000 | [diff] [blame] | 1005 | return newrangeobject(start, len, step, 1); |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 1006 | } |
| 1007 | |
| 1008 | static object * |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 1009 | builtin_raw_input(self, v) |
| 1010 | object *self; |
| 1011 | object *v; |
| 1012 | { |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 1013 | object *f = sysget("stdout"); |
| 1014 | if (f == NULL) { |
| 1015 | err_setstr(RuntimeError, "lost sys.stdout"); |
| 1016 | return NULL; |
| 1017 | } |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 1018 | flushline(); |
Guido van Rossum | 9093361 | 1991-06-07 16:10:43 +0000 | [diff] [blame] | 1019 | if (v != NULL) { |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 1020 | if (writeobject(v, f, PRINT_RAW) != 0) |
Guido van Rossum | 9093361 | 1991-06-07 16:10:43 +0000 | [diff] [blame] | 1021 | return NULL; |
| 1022 | } |
Guido van Rossum | 26203aa | 1991-04-04 15:20:41 +0000 | [diff] [blame] | 1023 | return filegetline(sysget("stdin"), -1); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 1024 | } |
| 1025 | |
| 1026 | static object * |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 1027 | builtin_reduce(self, args) |
| 1028 | object *self; |
| 1029 | object *args; |
| 1030 | { |
| 1031 | object *seq, *func, *result; |
| 1032 | sequence_methods *sqf; |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 1033 | register int i; |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 1034 | |
Guido van Rossum | 2d95185 | 1994-08-29 12:52:16 +0000 | [diff] [blame] | 1035 | if (getargs(args, "(OO)", &func, &seq)) |
| 1036 | result = NULL; |
| 1037 | else { |
| 1038 | err_clear(); |
| 1039 | if (!getargs(args, "(OOO)", &func, &seq, &result)) |
| 1040 | return NULL; |
| 1041 | INCREF(result); |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 1042 | } |
| 1043 | |
| 1044 | if ((sqf = seq->ob_type->tp_as_sequence) == NULL) { |
| 1045 | err_setstr(TypeError, |
| 1046 | "2nd argument to reduce() must be a sequence object"); |
| 1047 | return NULL; |
| 1048 | } |
| 1049 | |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 1050 | if ((args = newtupleobject(2)) == NULL) |
Guido van Rossum | 2d95185 | 1994-08-29 12:52:16 +0000 | [diff] [blame] | 1051 | goto Fail; |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 1052 | |
Guido van Rossum | 2d95185 | 1994-08-29 12:52:16 +0000 | [diff] [blame] | 1053 | for (i = 0; ; ++i) { |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 1054 | object *op2; |
| 1055 | |
| 1056 | if (args->ob_refcnt > 1) { |
| 1057 | DECREF(args); |
| 1058 | if ((args = newtupleobject(2)) == NULL) |
Guido van Rossum | 2d95185 | 1994-08-29 12:52:16 +0000 | [diff] [blame] | 1059 | goto Fail; |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 1060 | } |
| 1061 | |
Guido van Rossum | 2d95185 | 1994-08-29 12:52:16 +0000 | [diff] [blame] | 1062 | if ((op2 = (*sqf->sq_item)(seq, i)) == NULL) { |
| 1063 | if (err_occurred() == IndexError) { |
| 1064 | err_clear(); |
| 1065 | break; |
| 1066 | } |
| 1067 | goto Fail; |
| 1068 | } |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 1069 | |
Guido van Rossum | 2d95185 | 1994-08-29 12:52:16 +0000 | [diff] [blame] | 1070 | if (result == NULL) |
| 1071 | result = op2; |
| 1072 | else { |
| 1073 | settupleitem(args, 0, result); |
| 1074 | settupleitem(args, 1, op2); |
| 1075 | if ((result = call_object(func, args)) == NULL) |
| 1076 | goto Fail; |
| 1077 | } |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 1078 | } |
| 1079 | |
| 1080 | DECREF(args); |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 1081 | |
Guido van Rossum | 2d95185 | 1994-08-29 12:52:16 +0000 | [diff] [blame] | 1082 | if (result == NULL) |
| 1083 | err_setstr(TypeError, |
| 1084 | "reduce of empty sequence with no initial value"); |
| 1085 | |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 1086 | return result; |
| 1087 | |
Guido van Rossum | 2d95185 | 1994-08-29 12:52:16 +0000 | [diff] [blame] | 1088 | Fail: |
| 1089 | XDECREF(args); |
| 1090 | XDECREF(result); |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 1091 | return NULL; |
| 1092 | } |
| 1093 | |
| 1094 | static object * |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 1095 | builtin_reload(self, v) |
| 1096 | object *self; |
| 1097 | object *v; |
| 1098 | { |
| 1099 | return reload_module(v); |
| 1100 | } |
| 1101 | |
| 1102 | static object * |
Guido van Rossum | c89705d | 1992-11-26 08:54:07 +0000 | [diff] [blame] | 1103 | builtin_repr(self, v) |
| 1104 | object *self; |
| 1105 | object *v; |
| 1106 | { |
| 1107 | if (v == NULL) { |
| 1108 | err_badarg(); |
| 1109 | return NULL; |
| 1110 | } |
| 1111 | return reprobject(v); |
| 1112 | } |
| 1113 | |
| 1114 | static object * |
Guido van Rossum | 9e51f9b | 1993-02-12 16:29:05 +0000 | [diff] [blame] | 1115 | builtin_round(self, args) |
| 1116 | object *self; |
| 1117 | object *args; |
| 1118 | { |
| 1119 | extern double floor PROTO((double)); |
| 1120 | extern double ceil PROTO((double)); |
| 1121 | double x; |
| 1122 | double f; |
| 1123 | int ndigits = 0; |
| 1124 | int sign = 1; |
| 1125 | int i; |
| 1126 | if (!getargs(args, "d", &x)) { |
| 1127 | err_clear(); |
| 1128 | if (!getargs(args, "(di)", &x, &ndigits)) |
| 1129 | return NULL; |
| 1130 | } |
| 1131 | f = 1.0; |
| 1132 | for (i = ndigits; --i >= 0; ) |
| 1133 | f = f*10.0; |
| 1134 | for (i = ndigits; ++i <= 0; ) |
| 1135 | f = f*0.1; |
| 1136 | if (x >= 0.0) |
| 1137 | return newfloatobject(floor(x*f + 0.5) / f); |
| 1138 | else |
| 1139 | return newfloatobject(ceil(x*f - 0.5) / f); |
| 1140 | } |
| 1141 | |
| 1142 | static object * |
Guido van Rossum | c89705d | 1992-11-26 08:54:07 +0000 | [diff] [blame] | 1143 | builtin_str(self, v) |
| 1144 | object *self; |
| 1145 | object *v; |
| 1146 | { |
| 1147 | if (v == NULL) { |
| 1148 | err_badarg(); |
| 1149 | return NULL; |
| 1150 | } |
Guido van Rossum | c600411 | 1993-11-05 10:22:19 +0000 | [diff] [blame] | 1151 | return strobject(v); |
Guido van Rossum | c89705d | 1992-11-26 08:54:07 +0000 | [diff] [blame] | 1152 | } |
| 1153 | |
| 1154 | static object * |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 1155 | builtin_type(self, v) |
| 1156 | object *self; |
| 1157 | object *v; |
| 1158 | { |
| 1159 | if (v == NULL) { |
Guido van Rossum | c89705d | 1992-11-26 08:54:07 +0000 | [diff] [blame] | 1160 | err_setstr(TypeError, "type() requires an argument"); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 1161 | return NULL; |
| 1162 | } |
| 1163 | v = (object *)v->ob_type; |
| 1164 | INCREF(v); |
| 1165 | return v; |
| 1166 | } |
| 1167 | |
Guido van Rossum | 2d95185 | 1994-08-29 12:52:16 +0000 | [diff] [blame] | 1168 | static object * |
| 1169 | builtin_vars(self, v) |
| 1170 | object *self; |
| 1171 | object *v; |
| 1172 | { |
| 1173 | object *d; |
| 1174 | if (v == NULL) { |
| 1175 | d = getlocals(); |
| 1176 | INCREF(d); |
| 1177 | } |
| 1178 | else { |
| 1179 | d = getattr(v, "__dict__"); |
| 1180 | if (d == NULL) { |
| 1181 | err_setstr(TypeError, |
| 1182 | "vars() argument must have __dict__ attribute"); |
| 1183 | return NULL; |
| 1184 | } |
| 1185 | } |
| 1186 | return d; |
| 1187 | } |
| 1188 | |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 1189 | static struct methodlist builtin_methods[] = { |
Guido van Rossum | c02e15c | 1991-12-16 13:03:00 +0000 | [diff] [blame] | 1190 | {"abs", builtin_abs}, |
| 1191 | {"apply", builtin_apply}, |
Guido van Rossum | 2d95185 | 1994-08-29 12:52:16 +0000 | [diff] [blame] | 1192 | {"callable", builtin_callable}, |
Guido van Rossum | c02e15c | 1991-12-16 13:03:00 +0000 | [diff] [blame] | 1193 | {"chr", builtin_chr}, |
Guido van Rossum | a9e7dc1 | 1992-10-18 18:53:57 +0000 | [diff] [blame] | 1194 | {"cmp", builtin_cmp}, |
Guido van Rossum | 04691fc | 1992-08-12 15:35:34 +0000 | [diff] [blame] | 1195 | {"coerce", builtin_coerce}, |
Guido van Rossum | 5b72218 | 1993-03-30 17:46:03 +0000 | [diff] [blame] | 1196 | {"compile", builtin_compile}, |
Guido van Rossum | c02e15c | 1991-12-16 13:03:00 +0000 | [diff] [blame] | 1197 | {"dir", builtin_dir}, |
| 1198 | {"divmod", builtin_divmod}, |
| 1199 | {"eval", builtin_eval}, |
Guido van Rossum | 0f61f8a | 1992-02-25 18:55:05 +0000 | [diff] [blame] | 1200 | {"execfile", builtin_execfile}, |
Guido van Rossum | e77a757 | 1993-11-03 15:01:26 +0000 | [diff] [blame] | 1201 | {"filter", builtin_filter}, |
Guido van Rossum | c02e15c | 1991-12-16 13:03:00 +0000 | [diff] [blame] | 1202 | {"float", builtin_float}, |
Guido van Rossum | 33894be | 1992-01-27 16:53:09 +0000 | [diff] [blame] | 1203 | {"getattr", builtin_getattr}, |
Guido van Rossum | 9bfef44 | 1993-03-29 10:43:31 +0000 | [diff] [blame] | 1204 | {"hasattr", builtin_hasattr}, |
| 1205 | {"hash", builtin_hash}, |
Guido van Rossum | c02e15c | 1991-12-16 13:03:00 +0000 | [diff] [blame] | 1206 | {"hex", builtin_hex}, |
Guido van Rossum | 5b72218 | 1993-03-30 17:46:03 +0000 | [diff] [blame] | 1207 | {"id", builtin_id}, |
Guido van Rossum | c02e15c | 1991-12-16 13:03:00 +0000 | [diff] [blame] | 1208 | {"input", builtin_input}, |
| 1209 | {"int", builtin_int}, |
| 1210 | {"len", builtin_len}, |
| 1211 | {"long", builtin_long}, |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 1212 | {"map", builtin_map}, |
Guido van Rossum | c02e15c | 1991-12-16 13:03:00 +0000 | [diff] [blame] | 1213 | {"max", builtin_max}, |
| 1214 | {"min", builtin_min}, |
| 1215 | {"oct", builtin_oct}, |
Guido van Rossum | 5778949 | 1992-02-05 11:17:52 +0000 | [diff] [blame] | 1216 | {"open", builtin_open}, |
Guido van Rossum | c02e15c | 1991-12-16 13:03:00 +0000 | [diff] [blame] | 1217 | {"ord", builtin_ord}, |
| 1218 | {"pow", builtin_pow}, |
| 1219 | {"range", builtin_range}, |
| 1220 | {"raw_input", builtin_raw_input}, |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 1221 | {"reduce", builtin_reduce}, |
Guido van Rossum | c02e15c | 1991-12-16 13:03:00 +0000 | [diff] [blame] | 1222 | {"reload", builtin_reload}, |
Guido van Rossum | c89705d | 1992-11-26 08:54:07 +0000 | [diff] [blame] | 1223 | {"repr", builtin_repr}, |
Guido van Rossum | 9e51f9b | 1993-02-12 16:29:05 +0000 | [diff] [blame] | 1224 | {"round", builtin_round}, |
Guido van Rossum | 33894be | 1992-01-27 16:53:09 +0000 | [diff] [blame] | 1225 | {"setattr", builtin_setattr}, |
Guido van Rossum | c89705d | 1992-11-26 08:54:07 +0000 | [diff] [blame] | 1226 | {"str", builtin_str}, |
Guido van Rossum | c02e15c | 1991-12-16 13:03:00 +0000 | [diff] [blame] | 1227 | {"type", builtin_type}, |
Guido van Rossum | 2d95185 | 1994-08-29 12:52:16 +0000 | [diff] [blame] | 1228 | {"vars", builtin_vars}, |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 1229 | {"xrange", builtin_xrange}, |
Guido van Rossum | c02e15c | 1991-12-16 13:03:00 +0000 | [diff] [blame] | 1230 | {NULL, NULL}, |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 1231 | }; |
| 1232 | |
| 1233 | static object *builtin_dict; |
| 1234 | |
| 1235 | object * |
| 1236 | getbuiltin(name) |
Guido van Rossum | a57fb01 | 1991-08-16 08:54:58 +0000 | [diff] [blame] | 1237 | object *name; |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 1238 | { |
Guido van Rossum | 2d95185 | 1994-08-29 12:52:16 +0000 | [diff] [blame] | 1239 | return mappinglookup(builtin_dict, name); |
| 1240 | } |
| 1241 | |
| 1242 | int |
| 1243 | setbuiltin(cname, value) |
| 1244 | char *cname; |
| 1245 | object *value; |
| 1246 | { |
| 1247 | return dictinsert(builtin_dict, cname, value); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 1248 | } |
| 1249 | |
| 1250 | /* Predefined exceptions */ |
| 1251 | |
Guido van Rossum | 2583165 | 1993-05-19 14:50:45 +0000 | [diff] [blame] | 1252 | object *AccessError; |
Guido van Rossum | fb905c3 | 1991-12-16 15:42:38 +0000 | [diff] [blame] | 1253 | object *AttributeError; |
Guido van Rossum | 2583165 | 1993-05-19 14:50:45 +0000 | [diff] [blame] | 1254 | object *ConflictError; |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 1255 | object *EOFError; |
Guido van Rossum | fb905c3 | 1991-12-16 15:42:38 +0000 | [diff] [blame] | 1256 | object *IOError; |
Guido van Rossum | ed7711b | 1991-12-24 13:24:53 +0000 | [diff] [blame] | 1257 | object *ImportError; |
Guido van Rossum | fb905c3 | 1991-12-16 15:42:38 +0000 | [diff] [blame] | 1258 | object *IndexError; |
| 1259 | object *KeyError; |
| 1260 | object *KeyboardInterrupt; |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 1261 | object *MemoryError; |
| 1262 | object *NameError; |
Guido van Rossum | 50afb7a | 1991-12-10 13:52:31 +0000 | [diff] [blame] | 1263 | object *OverflowError; |
Guido van Rossum | fb905c3 | 1991-12-16 15:42:38 +0000 | [diff] [blame] | 1264 | object *RuntimeError; |
Guido van Rossum | c02e15c | 1991-12-16 13:03:00 +0000 | [diff] [blame] | 1265 | object *SyntaxError; |
Guido van Rossum | fb905c3 | 1991-12-16 15:42:38 +0000 | [diff] [blame] | 1266 | object *SystemError; |
Guido van Rossum | 768a3f0 | 1991-12-31 13:13:47 +0000 | [diff] [blame] | 1267 | object *SystemExit; |
Guido van Rossum | fb905c3 | 1991-12-16 15:42:38 +0000 | [diff] [blame] | 1268 | object *TypeError; |
| 1269 | object *ValueError; |
| 1270 | object *ZeroDivisionError; |
Guido van Rossum | 50afb7a | 1991-12-10 13:52:31 +0000 | [diff] [blame] | 1271 | |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 1272 | static object * |
Guido van Rossum | fb905c3 | 1991-12-16 15:42:38 +0000 | [diff] [blame] | 1273 | newstdexception(name) |
| 1274 | char *name; |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 1275 | { |
Guido van Rossum | fb905c3 | 1991-12-16 15:42:38 +0000 | [diff] [blame] | 1276 | object *v = newstringobject(name); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 1277 | if (v == NULL || dictinsert(builtin_dict, name, v) != 0) |
| 1278 | fatal("no mem for new standard exception"); |
| 1279 | return v; |
| 1280 | } |
| 1281 | |
| 1282 | static void |
| 1283 | initerrors() |
| 1284 | { |
Guido van Rossum | 2583165 | 1993-05-19 14:50:45 +0000 | [diff] [blame] | 1285 | AccessError = newstdexception("AccessError"); |
Guido van Rossum | ed7711b | 1991-12-24 13:24:53 +0000 | [diff] [blame] | 1286 | AttributeError = newstdexception("AttributeError"); |
Guido van Rossum | 2583165 | 1993-05-19 14:50:45 +0000 | [diff] [blame] | 1287 | ConflictError = newstdexception("ConflictError"); |
Guido van Rossum | fb905c3 | 1991-12-16 15:42:38 +0000 | [diff] [blame] | 1288 | EOFError = newstdexception("EOFError"); |
Guido van Rossum | ed7711b | 1991-12-24 13:24:53 +0000 | [diff] [blame] | 1289 | IOError = newstdexception("IOError"); |
| 1290 | ImportError = newstdexception("ImportError"); |
| 1291 | IndexError = newstdexception("IndexError"); |
| 1292 | KeyError = newstdexception("KeyError"); |
| 1293 | KeyboardInterrupt = newstdexception("KeyboardInterrupt"); |
Guido van Rossum | fb905c3 | 1991-12-16 15:42:38 +0000 | [diff] [blame] | 1294 | MemoryError = newstdexception("MemoryError"); |
| 1295 | NameError = newstdexception("NameError"); |
Guido van Rossum | fb905c3 | 1991-12-16 15:42:38 +0000 | [diff] [blame] | 1296 | OverflowError = newstdexception("OverflowError"); |
Guido van Rossum | ed7711b | 1991-12-24 13:24:53 +0000 | [diff] [blame] | 1297 | RuntimeError = newstdexception("RuntimeError"); |
Guido van Rossum | fb905c3 | 1991-12-16 15:42:38 +0000 | [diff] [blame] | 1298 | SyntaxError = newstdexception("SyntaxError"); |
Guido van Rossum | ed7711b | 1991-12-24 13:24:53 +0000 | [diff] [blame] | 1299 | SystemError = newstdexception("SystemError"); |
Guido van Rossum | 768a3f0 | 1991-12-31 13:13:47 +0000 | [diff] [blame] | 1300 | SystemExit = newstdexception("SystemExit"); |
Guido van Rossum | ed7711b | 1991-12-24 13:24:53 +0000 | [diff] [blame] | 1301 | TypeError = newstdexception("TypeError"); |
| 1302 | ValueError = newstdexception("ValueError"); |
| 1303 | ZeroDivisionError = newstdexception("ZeroDivisionError"); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 1304 | } |
| 1305 | |
| 1306 | void |
| 1307 | initbuiltin() |
| 1308 | { |
| 1309 | object *m; |
Guido van Rossum | 89b3325 | 1993-10-22 14:26:06 +0000 | [diff] [blame] | 1310 | m = initmodule("__builtin__", builtin_methods); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 1311 | builtin_dict = getmoduledict(m); |
| 1312 | INCREF(builtin_dict); |
| 1313 | initerrors(); |
| 1314 | (void) dictinsert(builtin_dict, "None", None); |
| 1315 | } |
Guido van Rossum | c6bb8f7 | 1991-07-01 18:42:41 +0000 | [diff] [blame] | 1316 | |
| 1317 | /* Coerce two numeric types to the "larger" one. |
| 1318 | Increment the reference count on each argument. |
| 1319 | Return -1 and raise an exception if no coercion is possible |
| 1320 | (and then no reference count is incremented). |
Guido van Rossum | e6eefc2 | 1992-08-14 12:06:52 +0000 | [diff] [blame] | 1321 | */ |
Guido van Rossum | c6bb8f7 | 1991-07-01 18:42:41 +0000 | [diff] [blame] | 1322 | |
| 1323 | int |
| 1324 | coerce(pv, pw) |
| 1325 | object **pv, **pw; |
| 1326 | { |
| 1327 | register object *v = *pv; |
| 1328 | register object *w = *pw; |
Guido van Rossum | e6eefc2 | 1992-08-14 12:06:52 +0000 | [diff] [blame] | 1329 | int res; |
| 1330 | |
Guido van Rossum | 9e51f9b | 1993-02-12 16:29:05 +0000 | [diff] [blame] | 1331 | if (v->ob_type == w->ob_type && !is_instanceobject(v)) { |
Guido van Rossum | c6bb8f7 | 1991-07-01 18:42:41 +0000 | [diff] [blame] | 1332 | INCREF(v); |
| 1333 | INCREF(w); |
| 1334 | return 0; |
| 1335 | } |
Guido van Rossum | e6eefc2 | 1992-08-14 12:06:52 +0000 | [diff] [blame] | 1336 | if (v->ob_type->tp_as_number && v->ob_type->tp_as_number->nb_coerce) { |
| 1337 | res = (*v->ob_type->tp_as_number->nb_coerce)(pv, pw); |
| 1338 | if (res <= 0) |
| 1339 | return res; |
Guido van Rossum | c6bb8f7 | 1991-07-01 18:42:41 +0000 | [diff] [blame] | 1340 | } |
Guido van Rossum | e6eefc2 | 1992-08-14 12:06:52 +0000 | [diff] [blame] | 1341 | if (w->ob_type->tp_as_number && w->ob_type->tp_as_number->nb_coerce) { |
| 1342 | res = (*w->ob_type->tp_as_number->nb_coerce)(pw, pv); |
| 1343 | if (res <= 0) |
| 1344 | return res; |
Guido van Rossum | c6bb8f7 | 1991-07-01 18:42:41 +0000 | [diff] [blame] | 1345 | } |
Guido van Rossum | e6eefc2 | 1992-08-14 12:06:52 +0000 | [diff] [blame] | 1346 | err_setstr(TypeError, "number coercion failed"); |
| 1347 | return -1; |
Guido van Rossum | c6bb8f7 | 1991-07-01 18:42:41 +0000 | [diff] [blame] | 1348 | } |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 1349 | |
| 1350 | |
Guido van Rossum | e77a757 | 1993-11-03 15:01:26 +0000 | [diff] [blame] | 1351 | /* Helper for filter(): filter a tuple through a function */ |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 1352 | |
| 1353 | static object * |
| 1354 | filtertuple(func, tuple) |
| 1355 | object *func; |
| 1356 | object *tuple; |
| 1357 | { |
Guido van Rossum | dc4b93d | 1993-10-27 14:56:44 +0000 | [diff] [blame] | 1358 | object *result; |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 1359 | register int i, j; |
Guido van Rossum | 2586bf0 | 1993-11-01 16:21:44 +0000 | [diff] [blame] | 1360 | int len = gettuplesize(tuple); |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 1361 | |
Guido van Rossum | 2586bf0 | 1993-11-01 16:21:44 +0000 | [diff] [blame] | 1362 | if ((result = newtupleobject(len)) == NULL) |
| 1363 | return NULL; |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 1364 | |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 1365 | for (i = j = 0; i < len; ++i) { |
Guido van Rossum | dc4b93d | 1993-10-27 14:56:44 +0000 | [diff] [blame] | 1366 | object *item, *good; |
| 1367 | int ok; |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 1368 | |
Guido van Rossum | dc4b93d | 1993-10-27 14:56:44 +0000 | [diff] [blame] | 1369 | if ((item = gettupleitem(tuple, i)) == NULL) |
| 1370 | goto Fail_1; |
| 1371 | if (func == None) { |
| 1372 | INCREF(item); |
| 1373 | good = item; |
| 1374 | } |
| 1375 | else { |
| 1376 | object *arg = mkvalue("(O)", item); |
| 1377 | if (arg == NULL) |
| 1378 | goto Fail_1; |
| 1379 | good = call_object(func, arg); |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 1380 | DECREF(arg); |
Guido van Rossum | dc4b93d | 1993-10-27 14:56:44 +0000 | [diff] [blame] | 1381 | if (good == NULL) |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 1382 | goto Fail_1; |
| 1383 | } |
Guido van Rossum | dc4b93d | 1993-10-27 14:56:44 +0000 | [diff] [blame] | 1384 | ok = testbool(good); |
| 1385 | DECREF(good); |
| 1386 | if (ok) { |
| 1387 | INCREF(item); |
| 1388 | if (settupleitem(result, j++, item) < 0) |
| 1389 | goto Fail_1; |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 1390 | } |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 1391 | } |
| 1392 | |
Sjoerd Mullender | 615194a | 1993-11-01 13:46:50 +0000 | [diff] [blame] | 1393 | if (resizetuple(&result, j, 0) < 0) |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 1394 | return NULL; |
| 1395 | |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 1396 | return result; |
| 1397 | |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 1398 | Fail_1: |
Guido van Rossum | 2586bf0 | 1993-11-01 16:21:44 +0000 | [diff] [blame] | 1399 | DECREF(result); |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 1400 | return NULL; |
| 1401 | } |
| 1402 | |
| 1403 | |
Guido van Rossum | e77a757 | 1993-11-03 15:01:26 +0000 | [diff] [blame] | 1404 | /* Helper for filter(): filter a string through a function */ |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 1405 | |
| 1406 | static object * |
| 1407 | filterstring(func, strobj) |
| 1408 | object *func; |
| 1409 | object *strobj; |
| 1410 | { |
Guido van Rossum | dc4b93d | 1993-10-27 14:56:44 +0000 | [diff] [blame] | 1411 | object *result; |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 1412 | register int i, j; |
Guido van Rossum | 2586bf0 | 1993-11-01 16:21:44 +0000 | [diff] [blame] | 1413 | int len = getstringsize(strobj); |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 1414 | |
Guido van Rossum | 2586bf0 | 1993-11-01 16:21:44 +0000 | [diff] [blame] | 1415 | if (func == None) { |
| 1416 | /* No character is ever false -- share input string */ |
Guido van Rossum | 2d95185 | 1994-08-29 12:52:16 +0000 | [diff] [blame] | 1417 | INCREF(strobj); |
| 1418 | return strobj; |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 1419 | } |
Guido van Rossum | 2586bf0 | 1993-11-01 16:21:44 +0000 | [diff] [blame] | 1420 | if ((result = newsizedstringobject(NULL, len)) == NULL) |
| 1421 | return NULL; |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 1422 | |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 1423 | for (i = j = 0; i < len; ++i) { |
Guido van Rossum | dc4b93d | 1993-10-27 14:56:44 +0000 | [diff] [blame] | 1424 | object *item, *arg, *good; |
| 1425 | int ok; |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 1426 | |
Guido van Rossum | dc4b93d | 1993-10-27 14:56:44 +0000 | [diff] [blame] | 1427 | item = (*strobj->ob_type->tp_as_sequence->sq_item)(strobj, i); |
| 1428 | if (item == NULL) |
| 1429 | goto Fail_1; |
| 1430 | arg = mkvalue("(O)", item); |
| 1431 | DECREF(item); |
| 1432 | if (arg == NULL) |
| 1433 | goto Fail_1; |
| 1434 | good = call_object(func, arg); |
| 1435 | DECREF(arg); |
| 1436 | if (good == NULL) |
| 1437 | goto Fail_1; |
| 1438 | ok = testbool(good); |
| 1439 | DECREF(good); |
| 1440 | if (ok) |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 1441 | GETSTRINGVALUE((stringobject *)result)[j++] = |
Guido van Rossum | dc4b93d | 1993-10-27 14:56:44 +0000 | [diff] [blame] | 1442 | GETSTRINGVALUE((stringobject *)item)[0]; |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 1443 | } |
| 1444 | |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 1445 | if (resizestring(&result, j) < 0) |
| 1446 | return NULL; |
| 1447 | |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 1448 | return result; |
| 1449 | |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 1450 | Fail_1: |
Guido van Rossum | 2586bf0 | 1993-11-01 16:21:44 +0000 | [diff] [blame] | 1451 | DECREF(result); |
Guido van Rossum | 12d12c5 | 1993-10-26 17:58:25 +0000 | [diff] [blame] | 1452 | return NULL; |
| 1453 | } |