Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 1 | /*********************************************************** |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame^] | 2 | Copyright 1991, 1992, 1993, 1994 by Stichting Mathematisch Centrum, |
Guido van Rossum | 9bfef44 | 1993-03-29 10:43:31 +0000 | [diff] [blame] | 3 | Amsterdam, The Netherlands. |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +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 | |
| 25 | /* Python interpreter top-level routines, including init/exit */ |
| 26 | |
| 27 | #include "allobjects.h" |
| 28 | |
| 29 | #include "grammar.h" |
| 30 | #include "node.h" |
| 31 | #include "parsetok.h" |
| 32 | #include "graminit.h" |
| 33 | #include "errcode.h" |
| 34 | #include "sysmodule.h" |
| 35 | #include "compile.h" |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 36 | #include "eval.h" |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 37 | #include "ceval.h" |
| 38 | #include "pythonrun.h" |
| 39 | #include "import.h" |
| 40 | |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame^] | 41 | #ifdef HAVE_SIGNAL_H |
Guido van Rossum | a9e7dc1 | 1992-10-18 18:53:57 +0000 | [diff] [blame] | 42 | #include <signal.h> |
Guido van Rossum | a9e7dc1 | 1992-10-18 18:53:57 +0000 | [diff] [blame] | 43 | #endif |
| 44 | |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 45 | extern char *getpythonpath(); |
| 46 | |
| 47 | extern grammar gram; /* From graminit.c */ |
| 48 | |
Guido van Rossum | b73cc04 | 1993-11-01 16:28:59 +0000 | [diff] [blame] | 49 | /* Forward */ |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame^] | 50 | static object *run_err_node PROTO((node *n, char *filename, |
Guido van Rossum | b73cc04 | 1993-11-01 16:28:59 +0000 | [diff] [blame] | 51 | object *globals, object *locals)); |
| 52 | static object *run_node PROTO((node *n, char *filename, |
| 53 | object *globals, object *locals)); |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame^] | 54 | static void err_input PROTO((perrdetail *)); |
Guido van Rossum | b376a4a | 1993-11-23 17:53:17 +0000 | [diff] [blame] | 55 | static void initsigs PROTO((void)); |
Guido van Rossum | a9e7dc1 | 1992-10-18 18:53:57 +0000 | [diff] [blame] | 56 | |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 57 | int debugging; /* Needed by parser.c */ |
| 58 | int verbose; /* Needed by import.c */ |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame^] | 59 | int suppress_print; /* Needed by ceval.c */ |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 60 | |
| 61 | /* Initialize all */ |
| 62 | |
| 63 | void |
| 64 | initall() |
| 65 | { |
| 66 | static int inited; |
| 67 | |
| 68 | if (inited) |
| 69 | return; |
| 70 | inited = 1; |
| 71 | |
| 72 | initimport(); |
| 73 | |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame^] | 74 | /* Modules '__builtin__' and 'sys' are initialized here, |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 75 | they are needed by random bits of the interpreter. |
| 76 | All other modules are optional and are initialized |
| 77 | when they are first imported. */ |
| 78 | |
| 79 | initbuiltin(); /* Also initializes builtin exceptions */ |
| 80 | initsys(); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 81 | |
| 82 | setpythonpath(getpythonpath()); |
Guido van Rossum | a9e7dc1 | 1992-10-18 18:53:57 +0000 | [diff] [blame] | 83 | |
| 84 | initsigs(); /* Signal handling stuff, including initintr() */ |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 85 | } |
| 86 | |
| 87 | /* Parse input from a file and execute it */ |
| 88 | |
| 89 | int |
| 90 | run(fp, filename) |
| 91 | FILE *fp; |
| 92 | char *filename; |
| 93 | { |
| 94 | if (filename == NULL) |
| 95 | filename = "???"; |
| 96 | if (isatty((int)fileno(fp))) |
| 97 | return run_tty_loop(fp, filename); |
| 98 | else |
| 99 | return run_script(fp, filename); |
| 100 | } |
| 101 | |
| 102 | int |
| 103 | run_tty_loop(fp, filename) |
| 104 | FILE *fp; |
| 105 | char *filename; |
| 106 | { |
| 107 | object *v; |
| 108 | int ret; |
| 109 | v = sysget("ps1"); |
| 110 | if (v == NULL) { |
| 111 | sysset("ps1", v = newstringobject(">>> ")); |
| 112 | XDECREF(v); |
| 113 | } |
| 114 | v = sysget("ps2"); |
| 115 | if (v == NULL) { |
| 116 | sysset("ps2", v = newstringobject("... ")); |
| 117 | XDECREF(v); |
| 118 | } |
| 119 | for (;;) { |
| 120 | ret = run_tty_1(fp, filename); |
| 121 | #ifdef REF_DEBUG |
| 122 | fprintf(stderr, "[%ld refs]\n", ref_total); |
| 123 | #endif |
| 124 | if (ret == E_EOF) |
| 125 | return 0; |
| 126 | /* |
| 127 | if (ret == E_NOMEM) |
| 128 | return -1; |
| 129 | */ |
| 130 | } |
| 131 | } |
| 132 | |
| 133 | int |
| 134 | run_tty_1(fp, filename) |
| 135 | FILE *fp; |
| 136 | char *filename; |
| 137 | { |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 138 | object *m, *d, *v, *w; |
| 139 | node *n; |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame^] | 140 | perrdetail err; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 141 | char *ps1, *ps2; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 142 | v = sysget("ps1"); |
| 143 | w = sysget("ps2"); |
| 144 | if (v != NULL && is_stringobject(v)) { |
| 145 | INCREF(v); |
| 146 | ps1 = getstringvalue(v); |
| 147 | } |
| 148 | else { |
| 149 | v = NULL; |
| 150 | ps1 = ""; |
| 151 | } |
| 152 | if (w != NULL && is_stringobject(w)) { |
| 153 | INCREF(w); |
| 154 | ps2 = getstringvalue(w); |
| 155 | } |
| 156 | else { |
| 157 | w = NULL; |
| 158 | ps2 = ""; |
| 159 | } |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 160 | BGN_SAVE |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame^] | 161 | n = parsefile(fp, filename, &gram, single_input, ps1, ps2, &err); |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 162 | END_SAVE |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 163 | XDECREF(v); |
| 164 | XDECREF(w); |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame^] | 165 | if (n == NULL) { |
| 166 | if (err.error == E_EOF) { |
| 167 | if (err.text) |
| 168 | free(err.text); |
| 169 | return E_EOF; |
| 170 | } |
| 171 | err_input(&err); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 172 | print_error(); |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame^] | 173 | return err.error; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 174 | } |
| 175 | m = add_module("__main__"); |
| 176 | if (m == NULL) |
| 177 | return -1; |
| 178 | d = getmoduledict(m); |
| 179 | v = run_node(n, filename, d, d); |
| 180 | flushline(); |
| 181 | if (v == NULL) { |
| 182 | print_error(); |
| 183 | return -1; |
| 184 | } |
| 185 | DECREF(v); |
| 186 | return 0; |
| 187 | } |
| 188 | |
| 189 | int |
| 190 | run_script(fp, filename) |
| 191 | FILE *fp; |
| 192 | char *filename; |
| 193 | { |
| 194 | object *m, *d, *v; |
| 195 | m = add_module("__main__"); |
| 196 | if (m == NULL) |
| 197 | return -1; |
| 198 | d = getmoduledict(m); |
| 199 | v = run_file(fp, filename, file_input, d, d); |
| 200 | flushline(); |
| 201 | if (v == NULL) { |
| 202 | print_error(); |
| 203 | return -1; |
| 204 | } |
| 205 | DECREF(v); |
| 206 | return 0; |
| 207 | } |
| 208 | |
| 209 | int |
| 210 | run_command(command) |
| 211 | char *command; |
| 212 | { |
| 213 | object *m, *d, *v; |
| 214 | m = add_module("__main__"); |
| 215 | if (m == NULL) |
| 216 | return -1; |
| 217 | d = getmoduledict(m); |
| 218 | v = run_string(command, file_input, d, d); |
| 219 | flushline(); |
| 220 | if (v == NULL) { |
| 221 | print_error(); |
| 222 | return -1; |
| 223 | } |
| 224 | DECREF(v); |
| 225 | return 0; |
| 226 | } |
| 227 | |
| 228 | void |
| 229 | print_error() |
| 230 | { |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 231 | object *exception, *v, *f; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 232 | err_get(&exception, &v); |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame^] | 233 | if (exception == NULL) { |
| 234 | fprintf(stderr, "print_error called but no exception\n"); |
| 235 | abort(); |
| 236 | } |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 237 | if (exception == SystemExit) { |
| 238 | if (v == NULL || v == None) |
| 239 | goaway(0); |
| 240 | if (is_intobject(v)) |
| 241 | goaway((int)getintvalue(v)); |
| 242 | else { |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 243 | /* OK to use real stderr here */ |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 244 | printobject(v, stderr, PRINT_RAW); |
| 245 | fprintf(stderr, "\n"); |
| 246 | goaway(1); |
| 247 | } |
| 248 | } |
| 249 | sysset("last_type", exception); |
| 250 | sysset("last_value", v); |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 251 | f = sysget("stderr"); |
| 252 | if (f == NULL) |
| 253 | fprintf(stderr, "lost sys.stderr\n"); |
| 254 | else { |
Guido van Rossum | 6ac258d | 1993-05-12 08:24:20 +0000 | [diff] [blame] | 255 | printtraceback(f); |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame^] | 256 | if (exception == SyntaxError) { |
| 257 | object *message; |
| 258 | char *filename, *text; |
| 259 | int lineno, offset; |
| 260 | if (!getargs(v, "(O(ziiz))", &message, |
| 261 | &filename, &lineno, &offset, &text)) |
| 262 | err_clear(); |
| 263 | else { |
| 264 | char buf[10]; |
| 265 | writestring(" File \"", f); |
| 266 | if (filename == NULL) |
| 267 | writestring("<string>", f); |
| 268 | else |
| 269 | writestring(filename, f); |
| 270 | writestring("\", line ", f); |
| 271 | sprintf(buf, "%d", lineno); |
| 272 | writestring(buf, f); |
| 273 | writestring("\n", f); |
| 274 | if (text != NULL) { |
| 275 | while (*text == ' ' || *text == '\t') { |
| 276 | text++; |
| 277 | offset--; |
| 278 | } |
| 279 | writestring(" ", f); |
| 280 | writestring(text, f); |
| 281 | if (*text == '\0' || |
| 282 | text[strlen(text)-1] != '\n') |
| 283 | writestring("\n", f); |
| 284 | writestring(" ", f); |
| 285 | offset--; |
| 286 | while (offset > 0) { |
| 287 | writestring(" ", f); |
| 288 | offset--; |
| 289 | } |
| 290 | writestring("^\n", f); |
| 291 | } |
| 292 | INCREF(message); |
| 293 | DECREF(v); |
| 294 | v = message; |
| 295 | } |
| 296 | } |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 297 | if (writeobject(exception, f, PRINT_RAW) != 0) |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 298 | err_clear(); |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 299 | if (v != NULL && v != None) { |
| 300 | writestring(": ", f); |
| 301 | if (writeobject(v, f, PRINT_RAW) != 0) |
| 302 | err_clear(); |
| 303 | } |
| 304 | writestring("\n", f); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 305 | } |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 306 | XDECREF(exception); |
| 307 | XDECREF(v); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 308 | } |
| 309 | |
| 310 | object * |
| 311 | run_string(str, start, globals, locals) |
| 312 | char *str; |
| 313 | int start; |
Guido van Rossum | 5b72218 | 1993-03-30 17:46:03 +0000 | [diff] [blame] | 314 | object *globals, *locals; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 315 | { |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame^] | 316 | return run_err_node(parse_string(str, start), |
| 317 | "<string>", globals, locals); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 318 | } |
| 319 | |
| 320 | object * |
| 321 | run_file(fp, filename, start, globals, locals) |
| 322 | FILE *fp; |
| 323 | char *filename; |
| 324 | int start; |
Guido van Rossum | 5b72218 | 1993-03-30 17:46:03 +0000 | [diff] [blame] | 325 | object *globals, *locals; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 326 | { |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame^] | 327 | return run_err_node(parse_file(fp, filename, start), |
| 328 | filename, globals, locals); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 329 | } |
| 330 | |
Guido van Rossum | f1dc566 | 1993-07-05 10:31:29 +0000 | [diff] [blame] | 331 | static object * |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame^] | 332 | run_err_node(n, filename, globals, locals) |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 333 | node *n; |
| 334 | char *filename; |
Guido van Rossum | 5b72218 | 1993-03-30 17:46:03 +0000 | [diff] [blame] | 335 | object *globals, *locals; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 336 | { |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame^] | 337 | if (n == NULL) |
| 338 | return NULL; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 339 | return run_node(n, filename, globals, locals); |
| 340 | } |
| 341 | |
Guido van Rossum | f1dc566 | 1993-07-05 10:31:29 +0000 | [diff] [blame] | 342 | static object * |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 343 | run_node(n, filename, globals, locals) |
| 344 | node *n; |
| 345 | char *filename; |
Guido van Rossum | 5b72218 | 1993-03-30 17:46:03 +0000 | [diff] [blame] | 346 | object *globals, *locals; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 347 | { |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 348 | codeobject *co; |
| 349 | object *v; |
| 350 | co = compile(n, filename); |
| 351 | freetree(n); |
| 352 | if (co == NULL) |
| 353 | return NULL; |
Guido van Rossum | 81daa32 | 1993-05-20 14:24:46 +0000 | [diff] [blame] | 354 | v = eval_code(co, globals, locals, (object *)NULL, (object *)NULL); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 355 | DECREF(co); |
| 356 | return v; |
| 357 | } |
| 358 | |
Guido van Rossum | 5b72218 | 1993-03-30 17:46:03 +0000 | [diff] [blame] | 359 | object * |
| 360 | compile_string(str, filename, start) |
| 361 | char *str; |
| 362 | char *filename; |
| 363 | int start; |
| 364 | { |
| 365 | node *n; |
| 366 | int err; |
| 367 | codeobject *co; |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame^] | 368 | n = parse_string(str, start); |
| 369 | if (n == NULL) |
Guido van Rossum | 5b72218 | 1993-03-30 17:46:03 +0000 | [diff] [blame] | 370 | return NULL; |
Guido van Rossum | 5b72218 | 1993-03-30 17:46:03 +0000 | [diff] [blame] | 371 | co = compile(n, filename); |
| 372 | freetree(n); |
| 373 | return (object *)co; |
| 374 | } |
| 375 | |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame^] | 376 | /* Simplified interface to parsefile -- return node or set exception */ |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 377 | |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame^] | 378 | node * |
| 379 | parse_file(fp, filename, start) |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 380 | FILE *fp; |
| 381 | char *filename; |
| 382 | int start; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 383 | { |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame^] | 384 | node *n; |
| 385 | perrdetail err; |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 386 | BGN_SAVE |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame^] | 387 | n = parsefile(fp, filename, &gram, start, |
| 388 | (char *)0, (char *)0, &err); |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 389 | END_SAVE |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame^] | 390 | if (n == NULL) |
| 391 | err_input(&err); |
| 392 | return n; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 393 | } |
| 394 | |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame^] | 395 | /* Simplified interface to parsestring -- return node or set exception */ |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 396 | |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame^] | 397 | node * |
| 398 | parse_string(str, start) |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 399 | char *str; |
| 400 | int start; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 401 | { |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame^] | 402 | node *n; |
| 403 | perrdetail err; |
| 404 | n = parsestring(str, &gram, start, &err); |
| 405 | if (n == NULL) |
| 406 | err_input(&err); |
| 407 | return n; |
| 408 | } |
| 409 | |
| 410 | /* Set the error appropriate to the given input error code (see errcode.h) */ |
| 411 | |
| 412 | static void |
| 413 | err_input(err) |
| 414 | perrdetail *err; |
| 415 | { |
| 416 | object *v, *w; |
| 417 | char *msg = NULL; |
| 418 | v = mkvalue("(ziiz)", err->filename, |
| 419 | err->lineno, err->offset, err->text); |
| 420 | if (err->text != NULL) { |
| 421 | free(err->text); |
| 422 | err->text = NULL; |
| 423 | } |
| 424 | switch (err->error) { |
| 425 | case E_SYNTAX: |
| 426 | msg = "invalid syntax"; |
| 427 | break; |
| 428 | case E_TOKEN: |
| 429 | msg = "invalid token"; |
| 430 | |
| 431 | break; |
| 432 | case E_INTR: |
| 433 | err_set(KeyboardInterrupt); |
| 434 | return; |
| 435 | case E_NOMEM: |
| 436 | err_nomem(); |
| 437 | return; |
| 438 | case E_EOF: |
| 439 | msg = "unexpected EOF while parsing"; |
| 440 | break; |
| 441 | default: |
| 442 | fprintf(stderr, "error=%d\n", err->error); |
| 443 | msg = "unknown parsing error"; |
| 444 | break; |
| 445 | } |
| 446 | w = mkvalue("(sO)", msg, v); |
| 447 | XDECREF(v); |
| 448 | err_setval(SyntaxError, w); |
| 449 | XDECREF(w); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 450 | } |
| 451 | |
| 452 | /* Print fatal error message and abort */ |
| 453 | |
| 454 | void |
| 455 | fatal(msg) |
| 456 | char *msg; |
| 457 | { |
| 458 | fprintf(stderr, "Fatal error: %s\n", msg); |
| 459 | abort(); |
| 460 | } |
| 461 | |
| 462 | /* Clean up and exit */ |
| 463 | |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame^] | 464 | #ifdef WITH_THREAD |
| 465 | #include "thread.h" |
| 466 | int threads_started = 0; /* Set by threadmodule.c and maybe others */ |
Guido van Rossum | f9f2e82 | 1992-08-17 08:59:08 +0000 | [diff] [blame] | 467 | #endif |
| 468 | |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame^] | 469 | void |
Guido van Rossum | a9e7dc1 | 1992-10-18 18:53:57 +0000 | [diff] [blame] | 470 | cleanup() |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 471 | { |
Guido van Rossum | 59bff39 | 1992-09-03 20:28:00 +0000 | [diff] [blame] | 472 | object *exitfunc = sysget("exitfunc"); |
| 473 | |
| 474 | if (exitfunc) { |
| 475 | object *arg; |
| 476 | object *res; |
| 477 | sysset("exitfunc", (object *)NULL); |
| 478 | arg = newtupleobject(0); |
| 479 | if (arg == NULL) |
| 480 | res = NULL; |
| 481 | else { |
| 482 | res = call_object(exitfunc, arg); |
| 483 | DECREF(arg); |
| 484 | } |
| 485 | if (res == NULL) { |
| 486 | fprintf(stderr, "Error in sys.exitfunc:\n"); |
| 487 | print_error(); |
| 488 | } |
| 489 | } |
| 490 | |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 491 | flushline(); |
Guido van Rossum | a9e7dc1 | 1992-10-18 18:53:57 +0000 | [diff] [blame] | 492 | } |
| 493 | |
Sjoerd Mullender | a9c3c22 | 1993-10-11 12:54:31 +0000 | [diff] [blame] | 494 | #ifdef COUNT_ALLOCS |
| 495 | extern void dump_counts PROTO((void)); |
| 496 | #endif |
| 497 | |
Guido van Rossum | a9e7dc1 | 1992-10-18 18:53:57 +0000 | [diff] [blame] | 498 | void |
| 499 | goaway(sts) |
| 500 | int sts; |
| 501 | { |
| 502 | cleanup(); |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 503 | |
Sjoerd Mullender | a9c3c22 | 1993-10-11 12:54:31 +0000 | [diff] [blame] | 504 | #ifdef COUNT_ALLOCS |
| 505 | dump_counts(); |
| 506 | #endif |
| 507 | |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame^] | 508 | #ifdef WITH_THREAD |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 509 | |
| 510 | /* Other threads may still be active, so skip most of the |
| 511 | cleanup actions usually done (these are mostly for |
| 512 | debugging anyway). */ |
| 513 | |
Guido van Rossum | df72a65 | 1992-08-12 15:27:32 +0000 | [diff] [blame] | 514 | (void) save_thread(); |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame^] | 515 | #ifndef NO_EXIT_PROG |
Guido van Rossum | f9f2e82 | 1992-08-17 08:59:08 +0000 | [diff] [blame] | 516 | if (threads_started) |
| 517 | _exit_prog(sts); |
| 518 | else |
| 519 | exit_prog(sts); |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame^] | 520 | #else /* !NO_EXIT_PROG */ |
| 521 | if (threads_started) |
| 522 | _exit(sts); |
| 523 | else |
| 524 | exit(sts); |
| 525 | #endif /* !NO_EXIT_PROG */ |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 526 | |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame^] | 527 | #else /* WITH_THREAD */ |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 528 | |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 529 | doneimport(); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 530 | |
| 531 | err_clear(); |
| 532 | |
| 533 | #ifdef REF_DEBUG |
| 534 | fprintf(stderr, "[%ld refs]\n", ref_total); |
| 535 | #endif |
| 536 | |
| 537 | #ifdef TRACE_REFS |
| 538 | if (askyesno("Print left references?")) { |
| 539 | printrefs(stderr); |
| 540 | } |
| 541 | #endif /* TRACE_REFS */ |
| 542 | |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 543 | exit(sts); |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame^] | 544 | #endif /* WITH_THREAD */ |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 545 | /*NOTREACHED*/ |
| 546 | } |
| 547 | |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame^] | 548 | #ifdef HAVE_SIGNAL_H |
| 549 | static RETSIGTYPE |
Guido van Rossum | a9e7dc1 | 1992-10-18 18:53:57 +0000 | [diff] [blame] | 550 | sighandler(sig) |
| 551 | int sig; |
| 552 | { |
| 553 | signal(sig, SIG_DFL); /* Don't catch recursive signals */ |
| 554 | cleanup(); /* Do essential clean-up */ |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame^] | 555 | #ifdef HAVE_GETPID |
Guido van Rossum | a9e7dc1 | 1992-10-18 18:53:57 +0000 | [diff] [blame] | 556 | kill(getpid(), sig); /* Pretend the signal killed us */ |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame^] | 557 | #else |
| 558 | exit(1); |
| 559 | #endif |
Guido van Rossum | a9e7dc1 | 1992-10-18 18:53:57 +0000 | [diff] [blame] | 560 | /*NOTREACHED*/ |
| 561 | } |
| 562 | #endif |
| 563 | |
Guido van Rossum | f1dc566 | 1993-07-05 10:31:29 +0000 | [diff] [blame] | 564 | static void |
Guido van Rossum | a9e7dc1 | 1992-10-18 18:53:57 +0000 | [diff] [blame] | 565 | initsigs() |
| 566 | { |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame^] | 567 | RETSIGTYPE (*t)(); |
| 568 | #ifdef HAVE_SIGNAL_H |
| 569 | #ifdef SIGPIPE |
| 570 | signal(SIGPIPE, SIG_IGN); |
Guido van Rossum | a9e7dc1 | 1992-10-18 18:53:57 +0000 | [diff] [blame] | 571 | #endif |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame^] | 572 | #ifdef SIGHUP |
| 573 | t = signal(SIGHUP, SIG_IGN); |
| 574 | if (t == SIG_DFL) |
| 575 | signal(SIGHUP, sighandler); |
| 576 | else |
| 577 | signal(SIGHUP, t); |
| 578 | #endif |
| 579 | #ifdef SIGTERM |
| 580 | t = signal(SIGTERM, SIG_IGN); |
| 581 | if (t == SIG_DFL) |
| 582 | signal(SIGTERM, sighandler); |
| 583 | else |
| 584 | signal(SIGTERM, t); |
| 585 | #endif |
| 586 | #endif /* HAVE_SIGNAL_H */ |
| 587 | initintr(); /* May imply initsignal() */ |
Guido van Rossum | a9e7dc1 | 1992-10-18 18:53:57 +0000 | [diff] [blame] | 588 | } |
| 589 | |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 590 | #ifdef TRACE_REFS |
| 591 | /* Ask a yes/no question */ |
| 592 | |
Guido van Rossum | 59bff39 | 1992-09-03 20:28:00 +0000 | [diff] [blame] | 593 | int |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 594 | askyesno(prompt) |
| 595 | char *prompt; |
| 596 | { |
| 597 | char buf[256]; |
| 598 | |
| 599 | printf("%s [ny] ", prompt); |
| 600 | if (fgets(buf, sizeof buf, stdin) == NULL) |
| 601 | return 0; |
| 602 | return buf[0] == 'y' || buf[0] == 'Y'; |
| 603 | } |
| 604 | #endif |
| 605 | |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame^] | 606 | #ifdef MPW |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 607 | |
| 608 | /* Check for file descriptor connected to interactive device. |
| 609 | Pretend that stdin is always interactive, other files never. */ |
| 610 | |
| 611 | int |
| 612 | isatty(fd) |
| 613 | int fd; |
| 614 | { |
| 615 | return fd == fileno(stdin); |
| 616 | } |
| 617 | |
| 618 | #endif |