Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 1 | /*********************************************************** |
Guido van Rossum | 6d023c9 | 1995-01-04 19:12:13 +0000 | [diff] [blame] | 2 | Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam, |
| 3 | The Netherlands. |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 4 | |
| 5 | All Rights Reserved |
| 6 | |
Guido van Rossum | d266eb4 | 1996-10-25 14:44:06 +0000 | [diff] [blame] | 7 | Permission to use, copy, modify, and distribute this software and its |
| 8 | documentation for any purpose and without fee is hereby granted, |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 9 | provided that the above copyright notice appear in all copies and that |
Guido van Rossum | d266eb4 | 1996-10-25 14:44:06 +0000 | [diff] [blame] | 10 | both that copyright notice and this permission notice appear in |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 11 | supporting documentation, and that the names of Stichting Mathematisch |
Guido van Rossum | d266eb4 | 1996-10-25 14:44:06 +0000 | [diff] [blame] | 12 | Centrum or CWI or Corporation for National Research Initiatives or |
| 13 | CNRI not be used in advertising or publicity pertaining to |
| 14 | distribution of the software without specific, written prior |
| 15 | permission. |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 16 | |
Guido van Rossum | d266eb4 | 1996-10-25 14:44:06 +0000 | [diff] [blame] | 17 | While CWI is the initial source for this software, a modified version |
| 18 | is made available by the Corporation for National Research Initiatives |
| 19 | (CNRI) at the Internet address ftp://ftp.python.org. |
| 20 | |
| 21 | STICHTING MATHEMATISCH CENTRUM AND CNRI DISCLAIM ALL WARRANTIES WITH |
| 22 | REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF |
| 23 | MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH |
| 24 | CENTRUM OR CNRI BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL |
| 25 | DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR |
| 26 | PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| 27 | TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
| 28 | PERFORMANCE OF THIS SOFTWARE. |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 29 | |
| 30 | ******************************************************************/ |
| 31 | |
| 32 | /* Python interpreter top-level routines, including init/exit */ |
| 33 | |
| 34 | #include "allobjects.h" |
| 35 | |
| 36 | #include "grammar.h" |
| 37 | #include "node.h" |
| 38 | #include "parsetok.h" |
| 39 | #include "graminit.h" |
Guido van Rossum | befa14f | 1995-09-18 21:42:42 +0000 | [diff] [blame] | 40 | #undef argument /* Avoid conflict on Mac */ |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 41 | #include "errcode.h" |
| 42 | #include "sysmodule.h" |
Guido van Rossum | 6135a87 | 1995-01-09 17:53:26 +0000 | [diff] [blame] | 43 | #include "bltinmodule.h" |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 44 | #include "compile.h" |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 45 | #include "eval.h" |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 46 | #include "ceval.h" |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 47 | #include "import.h" |
Guido van Rossum | fdef271 | 1994-09-14 13:31:04 +0000 | [diff] [blame] | 48 | #include "marshal.h" |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 49 | |
Guido van Rossum | 80bb965 | 1996-12-05 23:27:02 +0000 | [diff] [blame] | 50 | #ifdef HAVE_UNISTD_H |
| 51 | #include <unistd.h> |
| 52 | #endif |
| 53 | |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 54 | #ifdef HAVE_SIGNAL_H |
Guido van Rossum | a9e7dc1 | 1992-10-18 18:53:57 +0000 | [diff] [blame] | 55 | #include <signal.h> |
Guido van Rossum | a9e7dc1 | 1992-10-18 18:53:57 +0000 | [diff] [blame] | 56 | #endif |
| 57 | |
Guido van Rossum | 9b38a14 | 1996-09-11 23:12:24 +0000 | [diff] [blame] | 58 | #ifdef MS_WIN32 |
Guido van Rossum | a44823b | 1995-03-14 15:01:17 +0000 | [diff] [blame] | 59 | #undef BYTE |
Guido van Rossum | 4f1c59b | 1996-04-09 02:37:03 +0000 | [diff] [blame] | 60 | #undef arglist |
Guido van Rossum | a44823b | 1995-03-14 15:01:17 +0000 | [diff] [blame] | 61 | #include "windows.h" |
| 62 | #endif |
| 63 | |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 64 | extern char *getpythonpath(); |
| 65 | |
| 66 | extern grammar gram; /* From graminit.c */ |
| 67 | |
Guido van Rossum | b73cc04 | 1993-11-01 16:28:59 +0000 | [diff] [blame] | 68 | /* Forward */ |
Guido van Rossum | 6135a87 | 1995-01-09 17:53:26 +0000 | [diff] [blame] | 69 | static void initmain PROTO((void)); |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 70 | static object *run_err_node PROTO((node *n, char *filename, |
Guido van Rossum | b73cc04 | 1993-11-01 16:28:59 +0000 | [diff] [blame] | 71 | object *globals, object *locals)); |
| 72 | static object *run_node PROTO((node *n, char *filename, |
| 73 | object *globals, object *locals)); |
Guido van Rossum | 262e124 | 1995-02-07 15:30:45 +0000 | [diff] [blame] | 74 | static object *run_pyc_file PROTO((FILE *fp, char *filename, |
| 75 | object *globals, object *locals)); |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 76 | static void err_input PROTO((perrdetail *)); |
Guido van Rossum | b376a4a | 1993-11-23 17:53:17 +0000 | [diff] [blame] | 77 | static void initsigs PROTO((void)); |
Guido van Rossum | a9e7dc1 | 1992-10-18 18:53:57 +0000 | [diff] [blame] | 78 | |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 79 | int debugging; /* Needed by parser.c */ |
| 80 | int verbose; /* Needed by import.c */ |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 81 | int suppress_print; /* Needed by ceval.c */ |
Guido van Rossum | 7433b12 | 1997-02-14 19:45:36 +0000 | [diff] [blame^] | 82 | int Py_InteractiveFlag; /* Needed by Py_FdIsInteractive() below */ |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 83 | |
| 84 | /* Initialize all */ |
| 85 | |
| 86 | void |
| 87 | initall() |
| 88 | { |
| 89 | static int inited; |
| 90 | |
| 91 | if (inited) |
| 92 | return; |
| 93 | inited = 1; |
| 94 | |
| 95 | initimport(); |
| 96 | |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 97 | /* Modules '__builtin__' and 'sys' are initialized here, |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 98 | they are needed by random bits of the interpreter. |
| 99 | All other modules are optional and are initialized |
| 100 | when they are first imported. */ |
| 101 | |
| 102 | initbuiltin(); /* Also initializes builtin exceptions */ |
| 103 | initsys(); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 104 | |
| 105 | setpythonpath(getpythonpath()); |
Guido van Rossum | a9e7dc1 | 1992-10-18 18:53:57 +0000 | [diff] [blame] | 106 | |
| 107 | initsigs(); /* Signal handling stuff, including initintr() */ |
Guido van Rossum | 6135a87 | 1995-01-09 17:53:26 +0000 | [diff] [blame] | 108 | |
| 109 | initmain(); |
| 110 | } |
| 111 | |
| 112 | /* Create __main__ module */ |
| 113 | |
| 114 | static void |
| 115 | initmain() |
| 116 | { |
| 117 | object *m, *d; |
| 118 | m = add_module("__main__"); |
| 119 | if (m == NULL) |
| 120 | fatal("can't create __main__ module"); |
| 121 | d = getmoduledict(m); |
| 122 | if (dictlookup(d, "__builtins__") == NULL) { |
Guido van Rossum | 94390ec | 1995-01-12 11:37:57 +0000 | [diff] [blame] | 123 | if (dictinsert(d, "__builtins__", getbuiltins())) |
Guido van Rossum | 6135a87 | 1995-01-09 17:53:26 +0000 | [diff] [blame] | 124 | fatal("can't add __builtins__ to __main__"); |
| 125 | } |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 126 | } |
| 127 | |
| 128 | /* Parse input from a file and execute it */ |
| 129 | |
| 130 | int |
| 131 | run(fp, filename) |
| 132 | FILE *fp; |
| 133 | char *filename; |
| 134 | { |
| 135 | if (filename == NULL) |
| 136 | filename = "???"; |
Guido van Rossum | 7433b12 | 1997-02-14 19:45:36 +0000 | [diff] [blame^] | 137 | if (Py_FdIsInteractive(fp, filename)) |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 138 | return run_tty_loop(fp, filename); |
| 139 | else |
| 140 | return run_script(fp, filename); |
| 141 | } |
| 142 | |
| 143 | int |
| 144 | run_tty_loop(fp, filename) |
| 145 | FILE *fp; |
| 146 | char *filename; |
| 147 | { |
| 148 | object *v; |
| 149 | int ret; |
| 150 | v = sysget("ps1"); |
| 151 | if (v == NULL) { |
| 152 | sysset("ps1", v = newstringobject(">>> ")); |
| 153 | XDECREF(v); |
| 154 | } |
| 155 | v = sysget("ps2"); |
| 156 | if (v == NULL) { |
| 157 | sysset("ps2", v = newstringobject("... ")); |
| 158 | XDECREF(v); |
| 159 | } |
| 160 | for (;;) { |
| 161 | ret = run_tty_1(fp, filename); |
Guido van Rossum | aae0d32 | 1996-05-22 16:35:33 +0000 | [diff] [blame] | 162 | #ifdef Py_REF_DEBUG |
Guido van Rossum | 6f9e433 | 1995-03-29 16:57:48 +0000 | [diff] [blame] | 163 | fprintf(stderr, "[%ld refs]\n", _Py_RefTotal); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 164 | #endif |
| 165 | if (ret == E_EOF) |
| 166 | return 0; |
| 167 | /* |
| 168 | if (ret == E_NOMEM) |
| 169 | return -1; |
| 170 | */ |
| 171 | } |
| 172 | } |
| 173 | |
| 174 | int |
| 175 | run_tty_1(fp, filename) |
| 176 | FILE *fp; |
| 177 | char *filename; |
| 178 | { |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 179 | object *m, *d, *v, *w; |
| 180 | node *n; |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 181 | perrdetail err; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 182 | char *ps1, *ps2; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 183 | v = sysget("ps1"); |
| 184 | w = sysget("ps2"); |
| 185 | if (v != NULL && is_stringobject(v)) { |
| 186 | INCREF(v); |
| 187 | ps1 = getstringvalue(v); |
| 188 | } |
| 189 | else { |
| 190 | v = NULL; |
| 191 | ps1 = ""; |
| 192 | } |
| 193 | if (w != NULL && is_stringobject(w)) { |
| 194 | INCREF(w); |
| 195 | ps2 = getstringvalue(w); |
| 196 | } |
| 197 | else { |
| 198 | w = NULL; |
| 199 | ps2 = ""; |
| 200 | } |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 201 | BGN_SAVE |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 202 | n = parsefile(fp, filename, &gram, single_input, ps1, ps2, &err); |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 203 | END_SAVE |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 204 | XDECREF(v); |
| 205 | XDECREF(w); |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 206 | if (n == NULL) { |
| 207 | if (err.error == E_EOF) { |
| 208 | if (err.text) |
| 209 | free(err.text); |
| 210 | return E_EOF; |
| 211 | } |
| 212 | err_input(&err); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 213 | print_error(); |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 214 | return err.error; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 215 | } |
| 216 | m = add_module("__main__"); |
| 217 | if (m == NULL) |
| 218 | return -1; |
| 219 | d = getmoduledict(m); |
| 220 | v = run_node(n, filename, d, d); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 221 | if (v == NULL) { |
| 222 | print_error(); |
| 223 | return -1; |
| 224 | } |
| 225 | DECREF(v); |
Guido van Rossum | 6d023c9 | 1995-01-04 19:12:13 +0000 | [diff] [blame] | 226 | flushline(); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 227 | return 0; |
| 228 | } |
| 229 | |
| 230 | int |
| 231 | run_script(fp, filename) |
| 232 | FILE *fp; |
| 233 | char *filename; |
| 234 | { |
| 235 | object *m, *d, *v; |
Guido van Rossum | fdef271 | 1994-09-14 13:31:04 +0000 | [diff] [blame] | 236 | char *ext; |
| 237 | |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 238 | m = add_module("__main__"); |
| 239 | if (m == NULL) |
| 240 | return -1; |
| 241 | d = getmoduledict(m); |
Guido van Rossum | fdef271 | 1994-09-14 13:31:04 +0000 | [diff] [blame] | 242 | ext = filename + strlen(filename) - 4; |
Jack Jansen | bd06e96 | 1995-02-13 11:44:56 +0000 | [diff] [blame] | 243 | #ifdef macintosh |
| 244 | /* On a mac, we also assume a pyc file for types 'PYC ' and 'APPL' */ |
| 245 | if ( strcmp(ext, ".pyc") == 0 || getfiletype(filename) == 'PYC ' || |
| 246 | getfiletype(filename) == 'APPL' ) { |
| 247 | #else |
Guido van Rossum | fdef271 | 1994-09-14 13:31:04 +0000 | [diff] [blame] | 248 | if ( strcmp(ext, ".pyc") == 0 ) { |
Jack Jansen | bd06e96 | 1995-02-13 11:44:56 +0000 | [diff] [blame] | 249 | #endif /* macintosh */ |
Guido van Rossum | fdef271 | 1994-09-14 13:31:04 +0000 | [diff] [blame] | 250 | /* Try to run a pyc file. First, re-open in binary */ |
Jack Jansen | e00637b | 1994-12-14 12:58:37 +0000 | [diff] [blame] | 251 | /* Don't close, done in main: fclose(fp); */ |
Guido van Rossum | fdef271 | 1994-09-14 13:31:04 +0000 | [diff] [blame] | 252 | if( (fp = fopen(filename, "rb")) == NULL ) { |
| 253 | fprintf(stderr, "python: Can't reopen .pyc file\n"); |
| 254 | return -1; |
| 255 | } |
| 256 | v = run_pyc_file(fp, filename, d, d); |
| 257 | } else { |
| 258 | v = run_file(fp, filename, file_input, d, d); |
| 259 | } |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 260 | if (v == NULL) { |
| 261 | print_error(); |
| 262 | return -1; |
| 263 | } |
| 264 | DECREF(v); |
Guido van Rossum | 6d023c9 | 1995-01-04 19:12:13 +0000 | [diff] [blame] | 265 | flushline(); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 266 | return 0; |
| 267 | } |
| 268 | |
| 269 | int |
| 270 | run_command(command) |
| 271 | char *command; |
| 272 | { |
| 273 | object *m, *d, *v; |
| 274 | m = add_module("__main__"); |
| 275 | if (m == NULL) |
| 276 | return -1; |
| 277 | d = getmoduledict(m); |
| 278 | v = run_string(command, file_input, d, d); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 279 | if (v == NULL) { |
| 280 | print_error(); |
| 281 | return -1; |
| 282 | } |
| 283 | DECREF(v); |
Guido van Rossum | 6d023c9 | 1995-01-04 19:12:13 +0000 | [diff] [blame] | 284 | flushline(); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 285 | return 0; |
| 286 | } |
| 287 | |
| 288 | void |
| 289 | print_error() |
| 290 | { |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 291 | object *exception, *v, *tb, *f; |
| 292 | err_fetch(&exception, &v, &tb); |
Guido van Rossum | 6d023c9 | 1995-01-04 19:12:13 +0000 | [diff] [blame] | 293 | flushline(); |
Guido van Rossum | 527c264 | 1995-03-30 11:01:44 +0000 | [diff] [blame] | 294 | fflush(stdout); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 295 | if (exception == NULL) |
| 296 | fatal("print_error called but no exception"); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 297 | if (exception == SystemExit) { |
| 298 | if (v == NULL || v == None) |
| 299 | goaway(0); |
| 300 | if (is_intobject(v)) |
| 301 | goaway((int)getintvalue(v)); |
| 302 | else { |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 303 | /* OK to use real stderr here */ |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 304 | printobject(v, stderr, PRINT_RAW); |
| 305 | fprintf(stderr, "\n"); |
| 306 | goaway(1); |
| 307 | } |
| 308 | } |
| 309 | sysset("last_type", exception); |
| 310 | sysset("last_value", v); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 311 | sysset("last_traceback", tb); |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 312 | f = sysget("stderr"); |
| 313 | if (f == NULL) |
| 314 | fprintf(stderr, "lost sys.stderr\n"); |
| 315 | else { |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 316 | tb_print(tb, f); |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 317 | if (exception == SyntaxError) { |
| 318 | object *message; |
| 319 | char *filename, *text; |
| 320 | int lineno, offset; |
| 321 | if (!getargs(v, "(O(ziiz))", &message, |
| 322 | &filename, &lineno, &offset, &text)) |
| 323 | err_clear(); |
| 324 | else { |
| 325 | char buf[10]; |
| 326 | writestring(" File \"", f); |
| 327 | if (filename == NULL) |
| 328 | writestring("<string>", f); |
| 329 | else |
| 330 | writestring(filename, f); |
| 331 | writestring("\", line ", f); |
| 332 | sprintf(buf, "%d", lineno); |
| 333 | writestring(buf, f); |
| 334 | writestring("\n", f); |
| 335 | if (text != NULL) { |
Guido van Rossum | 798199d | 1994-09-19 08:08:50 +0000 | [diff] [blame] | 336 | char *nl; |
| 337 | if (offset > 0 && |
| 338 | offset == strlen(text)) |
| 339 | offset--; |
| 340 | for (;;) { |
| 341 | nl = strchr(text, '\n'); |
| 342 | if (nl == NULL || |
| 343 | nl-text >= offset) |
| 344 | break; |
| 345 | offset -= (nl+1-text); |
| 346 | text = nl+1; |
| 347 | } |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 348 | while (*text == ' ' || *text == '\t') { |
| 349 | text++; |
| 350 | offset--; |
| 351 | } |
| 352 | writestring(" ", f); |
| 353 | writestring(text, f); |
| 354 | if (*text == '\0' || |
| 355 | text[strlen(text)-1] != '\n') |
| 356 | writestring("\n", f); |
| 357 | writestring(" ", f); |
| 358 | offset--; |
| 359 | while (offset > 0) { |
| 360 | writestring(" ", f); |
| 361 | offset--; |
| 362 | } |
| 363 | writestring("^\n", f); |
| 364 | } |
| 365 | INCREF(message); |
| 366 | DECREF(v); |
| 367 | v = message; |
| 368 | } |
| 369 | } |
Guido van Rossum | 262e124 | 1995-02-07 15:30:45 +0000 | [diff] [blame] | 370 | if (is_classobject(exception)) { |
| 371 | object* className = ((classobject*)exception)->cl_name; |
| 372 | if (className == NULL) |
| 373 | writestring("<unknown>", f); |
| 374 | else { |
| 375 | if (writeobject(className, f, PRINT_RAW) != 0) |
| 376 | err_clear(); |
| 377 | } |
| 378 | } else { |
| 379 | if (writeobject(exception, f, PRINT_RAW) != 0) |
| 380 | err_clear(); |
| 381 | } |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 382 | if (v != NULL && v != None) { |
| 383 | writestring(": ", f); |
| 384 | if (writeobject(v, f, PRINT_RAW) != 0) |
| 385 | err_clear(); |
| 386 | } |
| 387 | writestring("\n", f); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 388 | } |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 389 | XDECREF(exception); |
| 390 | XDECREF(v); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 391 | XDECREF(tb); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 392 | } |
| 393 | |
| 394 | object * |
| 395 | run_string(str, start, globals, locals) |
| 396 | char *str; |
| 397 | int start; |
Guido van Rossum | 5b72218 | 1993-03-30 17:46:03 +0000 | [diff] [blame] | 398 | object *globals, *locals; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 399 | { |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 400 | return run_err_node(parse_string(str, start), |
| 401 | "<string>", globals, locals); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 402 | } |
| 403 | |
| 404 | object * |
| 405 | run_file(fp, filename, start, globals, locals) |
| 406 | FILE *fp; |
| 407 | char *filename; |
| 408 | int start; |
Guido van Rossum | 5b72218 | 1993-03-30 17:46:03 +0000 | [diff] [blame] | 409 | object *globals, *locals; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 410 | { |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 411 | return run_err_node(parse_file(fp, filename, start), |
| 412 | filename, globals, locals); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 413 | } |
| 414 | |
Guido van Rossum | f1dc566 | 1993-07-05 10:31:29 +0000 | [diff] [blame] | 415 | static object * |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 416 | run_err_node(n, filename, globals, locals) |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 417 | node *n; |
| 418 | char *filename; |
Guido van Rossum | 5b72218 | 1993-03-30 17:46:03 +0000 | [diff] [blame] | 419 | object *globals, *locals; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 420 | { |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 421 | if (n == NULL) |
| 422 | return NULL; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 423 | return run_node(n, filename, globals, locals); |
| 424 | } |
| 425 | |
Guido van Rossum | f1dc566 | 1993-07-05 10:31:29 +0000 | [diff] [blame] | 426 | static object * |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 427 | run_node(n, filename, globals, locals) |
| 428 | node *n; |
| 429 | char *filename; |
Guido van Rossum | 5b72218 | 1993-03-30 17:46:03 +0000 | [diff] [blame] | 430 | object *globals, *locals; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 431 | { |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 432 | codeobject *co; |
| 433 | object *v; |
| 434 | co = compile(n, filename); |
| 435 | freetree(n); |
| 436 | if (co == NULL) |
| 437 | return NULL; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 438 | v = eval_code(co, globals, locals); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 439 | DECREF(co); |
| 440 | return v; |
| 441 | } |
| 442 | |
Guido van Rossum | 8ae87c0 | 1995-01-26 00:40:38 +0000 | [diff] [blame] | 443 | static object * |
Guido van Rossum | fdef271 | 1994-09-14 13:31:04 +0000 | [diff] [blame] | 444 | run_pyc_file(fp, filename, globals, locals) |
| 445 | FILE *fp; |
| 446 | char *filename; |
| 447 | object *globals, *locals; |
| 448 | { |
| 449 | codeobject *co; |
| 450 | object *v; |
| 451 | long magic; |
| 452 | long get_pyc_magic(); |
| 453 | |
| 454 | magic = rd_long(fp); |
| 455 | if (magic != get_pyc_magic()) { |
| 456 | err_setstr(RuntimeError, |
| 457 | "Bad magic number in .pyc file"); |
| 458 | return NULL; |
| 459 | } |
| 460 | (void) rd_long(fp); |
| 461 | v = rd_object(fp); |
| 462 | fclose(fp); |
| 463 | if (v == NULL || !is_codeobject(v)) { |
| 464 | XDECREF(v); |
| 465 | err_setstr(RuntimeError, |
| 466 | "Bad code object in .pyc file"); |
| 467 | return NULL; |
| 468 | } |
| 469 | co = (codeobject *)v; |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 470 | v = eval_code(co, globals, locals); |
Guido van Rossum | fdef271 | 1994-09-14 13:31:04 +0000 | [diff] [blame] | 471 | DECREF(co); |
| 472 | return v; |
| 473 | } |
| 474 | |
| 475 | object * |
Guido van Rossum | 5b72218 | 1993-03-30 17:46:03 +0000 | [diff] [blame] | 476 | compile_string(str, filename, start) |
| 477 | char *str; |
| 478 | char *filename; |
| 479 | int start; |
| 480 | { |
| 481 | node *n; |
Guido van Rossum | 5b72218 | 1993-03-30 17:46:03 +0000 | [diff] [blame] | 482 | codeobject *co; |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 483 | n = parse_string(str, start); |
| 484 | if (n == NULL) |
Guido van Rossum | 5b72218 | 1993-03-30 17:46:03 +0000 | [diff] [blame] | 485 | return NULL; |
Guido van Rossum | 5b72218 | 1993-03-30 17:46:03 +0000 | [diff] [blame] | 486 | co = compile(n, filename); |
| 487 | freetree(n); |
| 488 | return (object *)co; |
| 489 | } |
| 490 | |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 491 | /* Simplified interface to parsefile -- return node or set exception */ |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 492 | |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 493 | node * |
| 494 | parse_file(fp, filename, start) |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 495 | FILE *fp; |
| 496 | char *filename; |
| 497 | int start; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 498 | { |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 499 | node *n; |
| 500 | perrdetail err; |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 501 | BGN_SAVE |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 502 | n = parsefile(fp, filename, &gram, start, |
| 503 | (char *)0, (char *)0, &err); |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 504 | END_SAVE |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 505 | if (n == NULL) |
| 506 | err_input(&err); |
| 507 | return n; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 508 | } |
| 509 | |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 510 | /* Simplified interface to parsestring -- return node or set exception */ |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 511 | |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 512 | node * |
| 513 | parse_string(str, start) |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 514 | char *str; |
| 515 | int start; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 516 | { |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 517 | node *n; |
| 518 | perrdetail err; |
| 519 | n = parsestring(str, &gram, start, &err); |
| 520 | if (n == NULL) |
| 521 | err_input(&err); |
| 522 | return n; |
| 523 | } |
| 524 | |
| 525 | /* Set the error appropriate to the given input error code (see errcode.h) */ |
| 526 | |
| 527 | static void |
| 528 | err_input(err) |
| 529 | perrdetail *err; |
| 530 | { |
| 531 | object *v, *w; |
| 532 | char *msg = NULL; |
| 533 | v = mkvalue("(ziiz)", err->filename, |
| 534 | err->lineno, err->offset, err->text); |
| 535 | if (err->text != NULL) { |
| 536 | free(err->text); |
| 537 | err->text = NULL; |
| 538 | } |
| 539 | switch (err->error) { |
| 540 | case E_SYNTAX: |
| 541 | msg = "invalid syntax"; |
| 542 | break; |
| 543 | case E_TOKEN: |
| 544 | msg = "invalid token"; |
| 545 | |
| 546 | break; |
| 547 | case E_INTR: |
| 548 | err_set(KeyboardInterrupt); |
| 549 | return; |
| 550 | case E_NOMEM: |
| 551 | err_nomem(); |
| 552 | return; |
| 553 | case E_EOF: |
| 554 | msg = "unexpected EOF while parsing"; |
| 555 | break; |
| 556 | default: |
| 557 | fprintf(stderr, "error=%d\n", err->error); |
| 558 | msg = "unknown parsing error"; |
| 559 | break; |
| 560 | } |
| 561 | w = mkvalue("(sO)", msg, v); |
| 562 | XDECREF(v); |
| 563 | err_setval(SyntaxError, w); |
| 564 | XDECREF(w); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 565 | } |
| 566 | |
| 567 | /* Print fatal error message and abort */ |
| 568 | |
| 569 | void |
| 570 | fatal(msg) |
| 571 | char *msg; |
| 572 | { |
Guido van Rossum | 83dd6c3 | 1994-09-29 09:38:33 +0000 | [diff] [blame] | 573 | fprintf(stderr, "Fatal Python error: %s\n", msg); |
Guido van Rossum | 8ae87c0 | 1995-01-26 00:40:38 +0000 | [diff] [blame] | 574 | #ifdef macintosh |
| 575 | for (;;); |
| 576 | #endif |
Guido van Rossum | 9b38a14 | 1996-09-11 23:12:24 +0000 | [diff] [blame] | 577 | #ifdef MS_WIN32 |
Guido van Rossum | a44823b | 1995-03-14 15:01:17 +0000 | [diff] [blame] | 578 | OutputDebugString("Fatal Python error:"); |
| 579 | OutputDebugString(msg); |
| 580 | OutputDebugString("\n"); |
| 581 | #endif |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 582 | abort(); |
| 583 | } |
| 584 | |
| 585 | /* Clean up and exit */ |
| 586 | |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 587 | #ifdef WITH_THREAD |
| 588 | #include "thread.h" |
| 589 | int threads_started = 0; /* Set by threadmodule.c and maybe others */ |
Guido van Rossum | f9f2e82 | 1992-08-17 08:59:08 +0000 | [diff] [blame] | 590 | #endif |
| 591 | |
Guido van Rossum | 1662dd5 | 1994-09-07 14:38:28 +0000 | [diff] [blame] | 592 | #define NEXITFUNCS 32 |
| 593 | static void (*exitfuncs[NEXITFUNCS])(); |
| 594 | static int nexitfuncs = 0; |
| 595 | |
| 596 | int Py_AtExit(func) |
| 597 | void (*func) PROTO((void)); |
| 598 | { |
| 599 | if (nexitfuncs >= NEXITFUNCS) |
| 600 | return -1; |
| 601 | exitfuncs[nexitfuncs++] = func; |
| 602 | return 0; |
| 603 | } |
| 604 | |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 605 | void |
Guido van Rossum | a9e7dc1 | 1992-10-18 18:53:57 +0000 | [diff] [blame] | 606 | cleanup() |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 607 | { |
Guido van Rossum | 59bff39 | 1992-09-03 20:28:00 +0000 | [diff] [blame] | 608 | object *exitfunc = sysget("exitfunc"); |
| 609 | |
| 610 | if (exitfunc) { |
Guido van Rossum | 59bff39 | 1992-09-03 20:28:00 +0000 | [diff] [blame] | 611 | object *res; |
Guido van Rossum | 1c45ca3 | 1995-10-07 19:14:01 +0000 | [diff] [blame] | 612 | INCREF(exitfunc); |
Guido van Rossum | 59bff39 | 1992-09-03 20:28:00 +0000 | [diff] [blame] | 613 | sysset("exitfunc", (object *)NULL); |
Guido van Rossum | 681d79a | 1995-07-18 14:51:37 +0000 | [diff] [blame] | 614 | res = call_object(exitfunc, (object *)NULL); |
Guido van Rossum | 59bff39 | 1992-09-03 20:28:00 +0000 | [diff] [blame] | 615 | if (res == NULL) { |
| 616 | fprintf(stderr, "Error in sys.exitfunc:\n"); |
| 617 | print_error(); |
| 618 | } |
Guido van Rossum | 1c45ca3 | 1995-10-07 19:14:01 +0000 | [diff] [blame] | 619 | DECREF(exitfunc); |
Guido van Rossum | 59bff39 | 1992-09-03 20:28:00 +0000 | [diff] [blame] | 620 | } |
| 621 | |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 622 | flushline(); |
Guido van Rossum | 1662dd5 | 1994-09-07 14:38:28 +0000 | [diff] [blame] | 623 | |
| 624 | while (nexitfuncs > 0) |
| 625 | (*exitfuncs[--nexitfuncs])(); |
Guido van Rossum | a9e7dc1 | 1992-10-18 18:53:57 +0000 | [diff] [blame] | 626 | } |
| 627 | |
Sjoerd Mullender | a9c3c22 | 1993-10-11 12:54:31 +0000 | [diff] [blame] | 628 | #ifdef COUNT_ALLOCS |
| 629 | extern void dump_counts PROTO((void)); |
| 630 | #endif |
| 631 | |
Guido van Rossum | a9e7dc1 | 1992-10-18 18:53:57 +0000 | [diff] [blame] | 632 | void |
| 633 | goaway(sts) |
| 634 | int sts; |
| 635 | { |
| 636 | cleanup(); |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 637 | |
Sjoerd Mullender | a9c3c22 | 1993-10-11 12:54:31 +0000 | [diff] [blame] | 638 | #ifdef COUNT_ALLOCS |
| 639 | dump_counts(); |
| 640 | #endif |
| 641 | |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 642 | #ifdef WITH_THREAD |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 643 | |
| 644 | /* Other threads may still be active, so skip most of the |
| 645 | cleanup actions usually done (these are mostly for |
| 646 | debugging anyway). */ |
| 647 | |
Guido van Rossum | df72a65 | 1992-08-12 15:27:32 +0000 | [diff] [blame] | 648 | (void) save_thread(); |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 649 | #ifndef NO_EXIT_PROG |
Guido van Rossum | f9f2e82 | 1992-08-17 08:59:08 +0000 | [diff] [blame] | 650 | if (threads_started) |
| 651 | _exit_prog(sts); |
| 652 | else |
| 653 | exit_prog(sts); |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 654 | #else /* !NO_EXIT_PROG */ |
| 655 | if (threads_started) |
| 656 | _exit(sts); |
| 657 | else |
| 658 | exit(sts); |
| 659 | #endif /* !NO_EXIT_PROG */ |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 660 | |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 661 | #else /* WITH_THREAD */ |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 662 | |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 663 | doneimport(); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 664 | |
| 665 | err_clear(); |
| 666 | |
Guido van Rossum | aae0d32 | 1996-05-22 16:35:33 +0000 | [diff] [blame] | 667 | #ifdef Py_REF_DEBUG |
Guido van Rossum | 6f9e433 | 1995-03-29 16:57:48 +0000 | [diff] [blame] | 668 | fprintf(stderr, "[%ld refs]\n", _Py_RefTotal); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 669 | #endif |
| 670 | |
Guido van Rossum | aae0d32 | 1996-05-22 16:35:33 +0000 | [diff] [blame] | 671 | #ifdef Py_TRACE_REFS |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 672 | if (askyesno("Print left references?")) { |
Guido van Rossum | ded690f | 1996-05-24 20:48:31 +0000 | [diff] [blame] | 673 | _Py_PrintReferences(stderr); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 674 | } |
Guido van Rossum | aae0d32 | 1996-05-22 16:35:33 +0000 | [diff] [blame] | 675 | #endif /* Py_TRACE_REFS */ |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 676 | |
Jack Jansen | 66a8977 | 1995-10-27 13:22:14 +0000 | [diff] [blame] | 677 | #ifdef macintosh |
| 678 | PyMac_Exit(sts); |
| 679 | #else |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 680 | exit(sts); |
Jack Jansen | 66a8977 | 1995-10-27 13:22:14 +0000 | [diff] [blame] | 681 | #endif |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 682 | #endif /* WITH_THREAD */ |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 683 | /*NOTREACHED*/ |
| 684 | } |
| 685 | |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 686 | #ifdef HAVE_SIGNAL_H |
| 687 | static RETSIGTYPE |
Guido van Rossum | a9e7dc1 | 1992-10-18 18:53:57 +0000 | [diff] [blame] | 688 | sighandler(sig) |
| 689 | int sig; |
| 690 | { |
| 691 | signal(sig, SIG_DFL); /* Don't catch recursive signals */ |
| 692 | cleanup(); /* Do essential clean-up */ |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 693 | #ifdef HAVE_GETPID |
Guido van Rossum | a9e7dc1 | 1992-10-18 18:53:57 +0000 | [diff] [blame] | 694 | kill(getpid(), sig); /* Pretend the signal killed us */ |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 695 | #else |
| 696 | exit(1); |
| 697 | #endif |
Guido van Rossum | a9e7dc1 | 1992-10-18 18:53:57 +0000 | [diff] [blame] | 698 | /*NOTREACHED*/ |
| 699 | } |
| 700 | #endif |
| 701 | |
Guido van Rossum | f1dc566 | 1993-07-05 10:31:29 +0000 | [diff] [blame] | 702 | static void |
Guido van Rossum | a9e7dc1 | 1992-10-18 18:53:57 +0000 | [diff] [blame] | 703 | initsigs() |
| 704 | { |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 705 | RETSIGTYPE (*t)(); |
| 706 | #ifdef HAVE_SIGNAL_H |
| 707 | #ifdef SIGPIPE |
| 708 | signal(SIGPIPE, SIG_IGN); |
Guido van Rossum | a9e7dc1 | 1992-10-18 18:53:57 +0000 | [diff] [blame] | 709 | #endif |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 710 | #ifdef SIGHUP |
| 711 | t = signal(SIGHUP, SIG_IGN); |
| 712 | if (t == SIG_DFL) |
| 713 | signal(SIGHUP, sighandler); |
| 714 | else |
| 715 | signal(SIGHUP, t); |
| 716 | #endif |
| 717 | #ifdef SIGTERM |
| 718 | t = signal(SIGTERM, SIG_IGN); |
| 719 | if (t == SIG_DFL) |
| 720 | signal(SIGTERM, sighandler); |
| 721 | else |
| 722 | signal(SIGTERM, t); |
| 723 | #endif |
| 724 | #endif /* HAVE_SIGNAL_H */ |
| 725 | initintr(); /* May imply initsignal() */ |
Guido van Rossum | a9e7dc1 | 1992-10-18 18:53:57 +0000 | [diff] [blame] | 726 | } |
| 727 | |
Guido van Rossum | aae0d32 | 1996-05-22 16:35:33 +0000 | [diff] [blame] | 728 | #ifdef Py_TRACE_REFS |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 729 | /* Ask a yes/no question */ |
| 730 | |
Guido van Rossum | 59bff39 | 1992-09-03 20:28:00 +0000 | [diff] [blame] | 731 | int |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 732 | askyesno(prompt) |
| 733 | char *prompt; |
| 734 | { |
| 735 | char buf[256]; |
| 736 | |
| 737 | printf("%s [ny] ", prompt); |
| 738 | if (fgets(buf, sizeof buf, stdin) == NULL) |
| 739 | return 0; |
| 740 | return buf[0] == 'y' || buf[0] == 'Y'; |
| 741 | } |
| 742 | #endif |
| 743 | |
Guido van Rossum | a110aa6 | 1994-08-29 12:50:44 +0000 | [diff] [blame] | 744 | #ifdef MPW |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 745 | |
| 746 | /* Check for file descriptor connected to interactive device. |
| 747 | Pretend that stdin is always interactive, other files never. */ |
| 748 | |
| 749 | int |
| 750 | isatty(fd) |
| 751 | int fd; |
| 752 | { |
| 753 | return fd == fileno(stdin); |
| 754 | } |
| 755 | |
| 756 | #endif |
Guido van Rossum | 7433b12 | 1997-02-14 19:45:36 +0000 | [diff] [blame^] | 757 | |
| 758 | /* |
| 759 | * The file descriptor fd is considered ``interactive'' if either |
| 760 | * a) isatty(fd) is TRUE, or |
| 761 | * b) the -i flag was given, and the filename associated with |
| 762 | * the descriptor is NULL or "<stdin>" or "???". |
| 763 | */ |
| 764 | int |
| 765 | Py_FdIsInteractive(fp, filename) |
| 766 | FILE *fp; |
| 767 | char *filename; |
| 768 | { |
| 769 | if (isatty((int)fileno(fp))) |
| 770 | return 1; |
| 771 | if (!Py_InteractiveFlag) |
| 772 | return 0; |
| 773 | return (filename == NULL) || |
| 774 | (strcmp(filename, "<stdin>") == 0) || |
| 775 | (strcmp(filename, "???") == 0); |
| 776 | } |