Guido van Rossum | f70e43a | 1991-02-19 12:39:46 +0000 | [diff] [blame] | 1 | /*********************************************************** |
Guido van Rossum | fd71b9e | 2000-06-30 23:50:40 +0000 | [diff] [blame] | 2 | Copyright (c) 2000, BeOpen.com. |
| 3 | Copyright (c) 1995-2000, Corporation for National Research Initiatives. |
| 4 | Copyright (c) 1990-1995, Stichting Mathematisch Centrum. |
| 5 | All rights reserved. |
Guido van Rossum | f70e43a | 1991-02-19 12:39:46 +0000 | [diff] [blame] | 6 | |
Guido van Rossum | fd71b9e | 2000-06-30 23:50:40 +0000 | [diff] [blame] | 7 | See the file "Misc/COPYRIGHT" for information on usage and |
| 8 | redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES. |
Guido van Rossum | f70e43a | 1991-02-19 12:39:46 +0000 | [diff] [blame] | 9 | ******************************************************************/ |
| 10 | |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 11 | /* Module support implementation */ |
| 12 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 13 | #include "Python.h" |
Jack Jansen | 41aa8e5 | 2000-07-03 21:39:47 +0000 | [diff] [blame] | 14 | #ifdef HAVE_LIMITS_H |
| 15 | #include <limits.h> |
| 16 | #endif |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 17 | |
Guido van Rossum | 1d5735e | 1994-08-30 08:27:36 +0000 | [diff] [blame] | 18 | #ifdef MPW /* MPW pushes 'extended' for float and double types with varargs */ |
| 19 | typedef extended va_double; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 20 | #else |
Guido van Rossum | 1d5735e | 1994-08-30 08:27:36 +0000 | [diff] [blame] | 21 | typedef double va_double; |
| 22 | #endif |
| 23 | |
Guido van Rossum | 2e58ff3 | 1997-11-19 18:53:33 +0000 | [diff] [blame] | 24 | /* Package context -- the full module name for package imports */ |
| 25 | char *_Py_PackageContext = NULL; |
| 26 | |
Guido van Rossum | 40b33c6 | 1997-08-02 03:07:46 +0000 | [diff] [blame] | 27 | /* Py_InitModule4() parameters: |
Guido van Rossum | 970a0a2 | 1995-01-09 17:47:20 +0000 | [diff] [blame] | 28 | - name is the module name |
| 29 | - methods is the list of top-level functions |
| 30 | - doc is the documentation string |
| 31 | - passthrough is passed as self to functions defined in the module |
| 32 | - api_version is the value of PYTHON_API_VERSION at the time the |
| 33 | module was compiled |
Guido van Rossum | 40b33c6 | 1997-08-02 03:07:46 +0000 | [diff] [blame] | 34 | |
| 35 | Return value is a borrowed reference to the module object; or NULL |
| 36 | if an error occurred (in Python 1.4 and before, errors were fatal). |
| 37 | Errors may still leak memory. |
Guido van Rossum | 50620fa | 1995-01-07 12:43:18 +0000 | [diff] [blame] | 38 | */ |
Guido van Rossum | 1d5735e | 1994-08-30 08:27:36 +0000 | [diff] [blame] | 39 | |
Guido van Rossum | 970a0a2 | 1995-01-09 17:47:20 +0000 | [diff] [blame] | 40 | static char api_version_warning[] = |
| 41 | "WARNING: Python C API version mismatch for module %s:\n\ |
Sjoerd Mullender | 996e6dc | 1996-01-23 16:07:29 +0000 | [diff] [blame] | 42 | This Python has API version %d, module %s has version %d.\n"; |
Guido van Rossum | 970a0a2 | 1995-01-09 17:47:20 +0000 | [diff] [blame] | 43 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 44 | PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 45 | Py_InitModule4(char *name, PyMethodDef *methods, char *doc, |
| 46 | PyObject *passthrough, int module_api_version) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 47 | { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 48 | PyObject *m, *d, *v; |
| 49 | PyMethodDef *ml; |
Guido van Rossum | 970a0a2 | 1995-01-09 17:47:20 +0000 | [diff] [blame] | 50 | if (module_api_version != PYTHON_API_VERSION) |
| 51 | fprintf(stderr, api_version_warning, |
| 52 | name, PYTHON_API_VERSION, name, module_api_version); |
Guido van Rossum | 2e58ff3 | 1997-11-19 18:53:33 +0000 | [diff] [blame] | 53 | if (_Py_PackageContext != NULL) { |
| 54 | char *p = strrchr(_Py_PackageContext, '.'); |
| 55 | if (p != NULL && strcmp(name, p+1) == 0) { |
| 56 | name = _Py_PackageContext; |
| 57 | _Py_PackageContext = NULL; |
| 58 | } |
| 59 | } |
Guido van Rossum | 40b33c6 | 1997-08-02 03:07:46 +0000 | [diff] [blame] | 60 | if ((m = PyImport_AddModule(name)) == NULL) |
| 61 | return NULL; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 62 | d = PyModule_GetDict(m); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 63 | for (ml = methods; ml->ml_name != NULL; ml++) { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 64 | v = PyCFunction_New(ml, passthrough); |
Guido van Rossum | 40b33c6 | 1997-08-02 03:07:46 +0000 | [diff] [blame] | 65 | if (v == NULL) |
| 66 | return NULL; |
| 67 | if (PyDict_SetItemString(d, ml->ml_name, v) != 0) |
| 68 | return NULL; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 69 | Py_DECREF(v); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 70 | } |
Guido van Rossum | 50620fa | 1995-01-07 12:43:18 +0000 | [diff] [blame] | 71 | if (doc != NULL) { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 72 | v = PyString_FromString(doc); |
| 73 | if (v == NULL || PyDict_SetItemString(d, "__doc__", v) != 0) |
Guido van Rossum | 40b33c6 | 1997-08-02 03:07:46 +0000 | [diff] [blame] | 74 | return NULL; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 75 | Py_DECREF(v); |
Guido van Rossum | 50620fa | 1995-01-07 12:43:18 +0000 | [diff] [blame] | 76 | } |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 77 | return m; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 78 | } |
| 79 | |
| 80 | |
Guido van Rossum | bf80e54 | 1993-02-08 15:49:17 +0000 | [diff] [blame] | 81 | /* Helper for mkvalue() to scan the length of a format */ |
Guido van Rossum | fc61adb | 1992-04-13 15:53:41 +0000 | [diff] [blame] | 82 | |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 83 | static int countformat(char *format, int endchar) |
Guido van Rossum | fc61adb | 1992-04-13 15:53:41 +0000 | [diff] [blame] | 84 | { |
| 85 | int count = 0; |
| 86 | int level = 0; |
| 87 | while (level > 0 || *format != endchar) { |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 88 | switch (*format) { |
| 89 | case '\0': |
Guido van Rossum | fc61adb | 1992-04-13 15:53:41 +0000 | [diff] [blame] | 90 | /* Premature end */ |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 91 | PyErr_SetString(PyExc_SystemError, |
| 92 | "unmatched paren in format"); |
Guido van Rossum | fc61adb | 1992-04-13 15:53:41 +0000 | [diff] [blame] | 93 | return -1; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 94 | case '(': |
| 95 | case '[': |
| 96 | case '{': |
Guido van Rossum | fc61adb | 1992-04-13 15:53:41 +0000 | [diff] [blame] | 97 | if (level == 0) |
| 98 | count++; |
| 99 | level++; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 100 | break; |
| 101 | case ')': |
| 102 | case ']': |
| 103 | case '}': |
Guido van Rossum | fc61adb | 1992-04-13 15:53:41 +0000 | [diff] [blame] | 104 | level--; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 105 | break; |
| 106 | case '#': |
Guido van Rossum | d1b9393 | 1995-01-20 16:56:02 +0000 | [diff] [blame] | 107 | case '&': |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 108 | case ',': |
| 109 | case ':': |
| 110 | case ' ': |
| 111 | case '\t': |
| 112 | break; |
| 113 | default: |
| 114 | if (level == 0) |
| 115 | count++; |
| 116 | } |
Guido van Rossum | fc61adb | 1992-04-13 15:53:41 +0000 | [diff] [blame] | 117 | format++; |
| 118 | } |
| 119 | return count; |
| 120 | } |
| 121 | |
| 122 | |
Guido van Rossum | fc61adb | 1992-04-13 15:53:41 +0000 | [diff] [blame] | 123 | /* Generic function to create a value -- the inverse of getargs() */ |
| 124 | /* After an original idea and first implementation by Steven Miale */ |
| 125 | |
Tim Peters | dbd9ba6 | 2000-07-09 03:09:57 +0000 | [diff] [blame] | 126 | static PyObject *do_mktuple(char**, va_list *, int, int); |
| 127 | static PyObject *do_mklist(char**, va_list *, int, int); |
| 128 | static PyObject *do_mkdict(char**, va_list *, int, int); |
| 129 | static PyObject *do_mkvalue(char**, va_list *); |
Guido van Rossum | fc61adb | 1992-04-13 15:53:41 +0000 | [diff] [blame] | 130 | |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 131 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 132 | static PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 133 | do_mkdict(char **p_format, va_list *p_va, int endchar, int n) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 134 | { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 135 | PyObject *d; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 136 | int i; |
| 137 | if (n < 0) |
| 138 | return NULL; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 139 | if ((d = PyDict_New()) == NULL) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 140 | return NULL; |
| 141 | for (i = 0; i < n; i+= 2) { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 142 | PyObject *k, *v; |
Guido van Rossum | db847bd | 1997-11-20 20:35:45 +0000 | [diff] [blame] | 143 | int err; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 144 | k = do_mkvalue(p_format, p_va); |
| 145 | if (k == NULL) { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 146 | Py_DECREF(d); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 147 | return NULL; |
| 148 | } |
| 149 | v = do_mkvalue(p_format, p_va); |
| 150 | if (v == NULL) { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 151 | Py_DECREF(k); |
| 152 | Py_DECREF(d); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 153 | return NULL; |
| 154 | } |
Guido van Rossum | db847bd | 1997-11-20 20:35:45 +0000 | [diff] [blame] | 155 | err = PyDict_SetItem(d, k, v); |
| 156 | Py_DECREF(k); |
| 157 | Py_DECREF(v); |
| 158 | if (err < 0) { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 159 | Py_DECREF(d); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 160 | return NULL; |
| 161 | } |
| 162 | } |
| 163 | if (d != NULL && **p_format != endchar) { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 164 | Py_DECREF(d); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 165 | d = NULL; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 166 | PyErr_SetString(PyExc_SystemError, |
| 167 | "Unmatched paren in format"); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 168 | } |
| 169 | else if (endchar) |
| 170 | ++*p_format; |
| 171 | return d; |
| 172 | } |
| 173 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 174 | static PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 175 | do_mklist(char **p_format, va_list *p_va, int endchar, int n) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 176 | { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 177 | PyObject *v; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 178 | int i; |
| 179 | if (n < 0) |
| 180 | return NULL; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 181 | if ((v = PyList_New(n)) == NULL) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 182 | return NULL; |
| 183 | for (i = 0; i < n; i++) { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 184 | PyObject *w = do_mkvalue(p_format, p_va); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 185 | if (w == NULL) { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 186 | Py_DECREF(v); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 187 | return NULL; |
| 188 | } |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 189 | PyList_SetItem(v, i, w); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 190 | } |
| 191 | if (v != NULL && **p_format != endchar) { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 192 | Py_DECREF(v); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 193 | v = NULL; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 194 | PyErr_SetString(PyExc_SystemError, |
| 195 | "Unmatched paren in format"); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 196 | } |
| 197 | else if (endchar) |
| 198 | ++*p_format; |
| 199 | return v; |
| 200 | } |
| 201 | |
Fred Drake | 25d3447 | 2000-04-28 14:42:37 +0000 | [diff] [blame] | 202 | static int |
| 203 | _ustrlen(Py_UNICODE *u) |
| 204 | { |
| 205 | int i = 0; |
| 206 | Py_UNICODE *v = u; |
| 207 | while (*v != 0) { i++; v++; } |
| 208 | return i; |
| 209 | } |
| 210 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 211 | static PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 212 | do_mktuple(char **p_format, va_list *p_va, int endchar, int n) |
Guido van Rossum | fc61adb | 1992-04-13 15:53:41 +0000 | [diff] [blame] | 213 | { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 214 | PyObject *v; |
Guido van Rossum | fc61adb | 1992-04-13 15:53:41 +0000 | [diff] [blame] | 215 | int i; |
| 216 | if (n < 0) |
| 217 | return NULL; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 218 | if ((v = PyTuple_New(n)) == NULL) |
Guido van Rossum | fc61adb | 1992-04-13 15:53:41 +0000 | [diff] [blame] | 219 | return NULL; |
| 220 | for (i = 0; i < n; i++) { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 221 | PyObject *w = do_mkvalue(p_format, p_va); |
Guido van Rossum | fc61adb | 1992-04-13 15:53:41 +0000 | [diff] [blame] | 222 | if (w == NULL) { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 223 | Py_DECREF(v); |
Guido van Rossum | fc61adb | 1992-04-13 15:53:41 +0000 | [diff] [blame] | 224 | return NULL; |
| 225 | } |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 226 | PyTuple_SetItem(v, i, w); |
Guido van Rossum | fc61adb | 1992-04-13 15:53:41 +0000 | [diff] [blame] | 227 | } |
| 228 | if (v != NULL && **p_format != endchar) { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 229 | Py_DECREF(v); |
Guido van Rossum | fc61adb | 1992-04-13 15:53:41 +0000 | [diff] [blame] | 230 | v = NULL; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 231 | PyErr_SetString(PyExc_SystemError, |
| 232 | "Unmatched paren in format"); |
Guido van Rossum | fc61adb | 1992-04-13 15:53:41 +0000 | [diff] [blame] | 233 | } |
| 234 | else if (endchar) |
| 235 | ++*p_format; |
| 236 | return v; |
| 237 | } |
| 238 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 239 | static PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 240 | do_mkvalue(char **p_format, va_list *p_va) |
Guido van Rossum | 899dcf3 | 1992-05-15 11:04:59 +0000 | [diff] [blame] | 241 | { |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 242 | for (;;) { |
| 243 | switch (*(*p_format)++) { |
| 244 | case '(': |
| 245 | return do_mktuple(p_format, p_va, ')', |
| 246 | countformat(*p_format, ')')); |
| 247 | |
| 248 | case '[': |
| 249 | return do_mklist(p_format, p_va, ']', |
| 250 | countformat(*p_format, ']')); |
| 251 | |
| 252 | case '{': |
| 253 | return do_mkdict(p_format, p_va, '}', |
| 254 | countformat(*p_format, '}')); |
| 255 | |
| 256 | case 'b': |
| 257 | case 'h': |
| 258 | case 'i': |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 259 | return PyInt_FromLong((long)va_arg(*p_va, int)); |
Jack Jansen | d50338f | 2000-07-06 12:22:00 +0000 | [diff] [blame] | 260 | |
| 261 | case 'H': |
| 262 | return PyInt_FromLong((long)va_arg(*p_va, unsigned int)); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 263 | |
| 264 | case 'l': |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 265 | return PyInt_FromLong((long)va_arg(*p_va, long)); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 266 | |
Guido van Rossum | 3dbba6e | 1999-01-25 21:48:56 +0000 | [diff] [blame] | 267 | #ifdef HAVE_LONG_LONG |
Guido van Rossum | 1a8791e | 1998-08-04 22:46:29 +0000 | [diff] [blame] | 268 | case 'L': |
Guido van Rossum | 3293b07 | 1998-08-25 16:07:15 +0000 | [diff] [blame] | 269 | return PyLong_FromLongLong((LONG_LONG)va_arg(*p_va, LONG_LONG)); |
Guido van Rossum | 1a8791e | 1998-08-04 22:46:29 +0000 | [diff] [blame] | 270 | #endif |
Fred Drake | 25d3447 | 2000-04-28 14:42:37 +0000 | [diff] [blame] | 271 | case 'u': |
| 272 | { |
| 273 | PyObject *v; |
| 274 | Py_UNICODE *u = va_arg(*p_va, Py_UNICODE *); |
| 275 | int n; |
| 276 | if (**p_format == '#') { |
| 277 | ++*p_format; |
| 278 | n = va_arg(*p_va, int); |
| 279 | } |
| 280 | else |
| 281 | n = -1; |
| 282 | if (u == NULL) { |
| 283 | v = Py_None; |
| 284 | Py_INCREF(v); |
| 285 | } |
| 286 | else { |
| 287 | if (n < 0) |
| 288 | n = _ustrlen(u); |
| 289 | v = PyUnicode_FromUnicode(u, n); |
| 290 | } |
| 291 | return v; |
| 292 | } |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 293 | case 'f': |
| 294 | case 'd': |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 295 | return PyFloat_FromDouble( |
| 296 | (double)va_arg(*p_va, va_double)); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 297 | |
| 298 | case 'c': |
Guido van Rossum | fc61adb | 1992-04-13 15:53:41 +0000 | [diff] [blame] | 299 | { |
| 300 | char p[1]; |
| 301 | p[0] = va_arg(*p_va, int); |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 302 | return PyString_FromStringAndSize(p, 1); |
Guido van Rossum | fc61adb | 1992-04-13 15:53:41 +0000 | [diff] [blame] | 303 | } |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 304 | |
| 305 | case 's': |
| 306 | case 'z': |
Guido van Rossum | 3cfe6fa | 1992-04-13 10:48:55 +0000 | [diff] [blame] | 307 | { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 308 | PyObject *v; |
Guido van Rossum | 3cfe6fa | 1992-04-13 10:48:55 +0000 | [diff] [blame] | 309 | char *str = va_arg(*p_va, char *); |
| 310 | int n; |
| 311 | if (**p_format == '#') { |
| 312 | ++*p_format; |
| 313 | n = va_arg(*p_va, int); |
| 314 | } |
| 315 | else |
| 316 | n = -1; |
| 317 | if (str == NULL) { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 318 | v = Py_None; |
| 319 | Py_INCREF(v); |
Guido van Rossum | 3cfe6fa | 1992-04-13 10:48:55 +0000 | [diff] [blame] | 320 | } |
| 321 | else { |
Guido van Rossum | 582acec | 2000-06-28 22:07:35 +0000 | [diff] [blame] | 322 | if (n < 0) { |
| 323 | size_t m = strlen(str); |
| 324 | if (m > INT_MAX) { |
| 325 | PyErr_SetString(PyExc_OverflowError, |
| 326 | "string too long for Python string"); |
| 327 | return NULL; |
| 328 | } |
| 329 | n = (int)m; |
| 330 | } |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 331 | v = PyString_FromStringAndSize(str, n); |
Guido van Rossum | 3cfe6fa | 1992-04-13 10:48:55 +0000 | [diff] [blame] | 332 | } |
Guido van Rossum | fc61adb | 1992-04-13 15:53:41 +0000 | [diff] [blame] | 333 | return v; |
Guido van Rossum | 3cfe6fa | 1992-04-13 10:48:55 +0000 | [diff] [blame] | 334 | } |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 335 | |
Guido van Rossum | d341500 | 1998-12-23 05:01:38 +0000 | [diff] [blame] | 336 | case 'N': |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 337 | case 'S': |
| 338 | case 'O': |
Guido van Rossum | d1b9393 | 1995-01-20 16:56:02 +0000 | [diff] [blame] | 339 | if (**p_format == '&') { |
Tim Peters | dbd9ba6 | 2000-07-09 03:09:57 +0000 | [diff] [blame] | 340 | typedef PyObject *(*converter)(void *); |
Guido van Rossum | d1b9393 | 1995-01-20 16:56:02 +0000 | [diff] [blame] | 341 | converter func = va_arg(*p_va, converter); |
| 342 | void *arg = va_arg(*p_va, void *); |
| 343 | ++*p_format; |
| 344 | return (*func)(arg); |
| 345 | } |
| 346 | else { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 347 | PyObject *v; |
| 348 | v = va_arg(*p_va, PyObject *); |
Guido van Rossum | c38e7d4 | 1998-12-23 19:53:45 +0000 | [diff] [blame] | 349 | if (v != NULL) { |
Guido van Rossum | d341500 | 1998-12-23 05:01:38 +0000 | [diff] [blame] | 350 | if (*(*p_format - 1) != 'N') |
| 351 | Py_INCREF(v); |
Guido van Rossum | c38e7d4 | 1998-12-23 19:53:45 +0000 | [diff] [blame] | 352 | } |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 353 | else if (!PyErr_Occurred()) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 354 | /* If a NULL was passed |
| 355 | * because a call that should |
| 356 | * have constructed a value |
| 357 | * failed, that's OK, and we |
| 358 | * pass the error on; but if |
| 359 | * no error occurred it's not |
| 360 | * clear that the caller knew |
| 361 | * what she was doing. */ |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 362 | PyErr_SetString(PyExc_SystemError, |
Guido van Rossum | 233f4b5 | 1998-07-07 22:32:19 +0000 | [diff] [blame] | 363 | "NULL object passed to Py_BuildValue"); |
Guido van Rossum | fc61adb | 1992-04-13 15:53:41 +0000 | [diff] [blame] | 364 | return v; |
Guido van Rossum | 3cfe6fa | 1992-04-13 10:48:55 +0000 | [diff] [blame] | 365 | } |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 366 | |
| 367 | case ':': |
| 368 | case ',': |
| 369 | case ' ': |
| 370 | case '\t': |
| 371 | break; |
| 372 | |
| 373 | default: |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 374 | PyErr_SetString(PyExc_SystemError, |
Guido van Rossum | 233f4b5 | 1998-07-07 22:32:19 +0000 | [diff] [blame] | 375 | "bad format char passed to Py_BuildValue"); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 376 | return NULL; |
| 377 | |
| 378 | } |
Guido van Rossum | 3cfe6fa | 1992-04-13 10:48:55 +0000 | [diff] [blame] | 379 | } |
Guido van Rossum | 3cfe6fa | 1992-04-13 10:48:55 +0000 | [diff] [blame] | 380 | } |
| 381 | |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 382 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 383 | PyObject *Py_BuildValue(char *format, ...) |
Guido van Rossum | 3cfe6fa | 1992-04-13 10:48:55 +0000 | [diff] [blame] | 384 | { |
Guido van Rossum | fc61adb | 1992-04-13 15:53:41 +0000 | [diff] [blame] | 385 | va_list va; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 386 | PyObject* retval; |
Guido van Rossum | fc61adb | 1992-04-13 15:53:41 +0000 | [diff] [blame] | 387 | va_start(va, format); |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 388 | retval = Py_VaBuildValue(format, va); |
Guido van Rossum | fc61adb | 1992-04-13 15:53:41 +0000 | [diff] [blame] | 389 | va_end(va); |
Guido van Rossum | fc61adb | 1992-04-13 15:53:41 +0000 | [diff] [blame] | 390 | return retval; |
Guido van Rossum | 3cfe6fa | 1992-04-13 10:48:55 +0000 | [diff] [blame] | 391 | } |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 392 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 393 | PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 394 | Py_VaBuildValue(char *format, va_list va) |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 395 | { |
| 396 | char *f = format; |
| 397 | int n = countformat(f, '\0'); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 398 | va_list lva; |
| 399 | |
| 400 | #ifdef VA_LIST_IS_ARRAY |
| 401 | memcpy(lva, va, sizeof(va_list)); |
| 402 | #else |
| 403 | lva = va; |
| 404 | #endif |
| 405 | |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 406 | if (n < 0) |
| 407 | return NULL; |
| 408 | if (n == 0) { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 409 | Py_INCREF(Py_None); |
| 410 | return Py_None; |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 411 | } |
| 412 | if (n == 1) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 413 | return do_mkvalue(&f, &lva); |
| 414 | return do_mktuple(&f, &lva, '\0', n); |
| 415 | } |
| 416 | |
| 417 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 418 | PyObject * |
| 419 | PyEval_CallFunction(PyObject *obj, char *format, ...) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 420 | { |
| 421 | va_list vargs; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 422 | PyObject *args; |
| 423 | PyObject *res; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 424 | |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 425 | va_start(vargs, format); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 426 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 427 | args = Py_VaBuildValue(format, vargs); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 428 | va_end(vargs); |
| 429 | |
| 430 | if (args == NULL) |
| 431 | return NULL; |
| 432 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 433 | res = PyEval_CallObject(obj, args); |
| 434 | Py_DECREF(args); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 435 | |
| 436 | return res; |
| 437 | } |
| 438 | |
| 439 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 440 | PyObject * |
Guido van Rossum | c4099e6 | 1998-08-08 20:51:26 +0000 | [diff] [blame] | 441 | PyEval_CallMethod(PyObject *obj, char *methodname, char *format, ...) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 442 | { |
| 443 | va_list vargs; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 444 | PyObject *meth; |
| 445 | PyObject *args; |
| 446 | PyObject *res; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 447 | |
Guido van Rossum | c4099e6 | 1998-08-08 20:51:26 +0000 | [diff] [blame] | 448 | meth = PyObject_GetAttrString(obj, methodname); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 449 | if (meth == NULL) |
| 450 | return NULL; |
| 451 | |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 452 | va_start(vargs, format); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 453 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 454 | args = Py_VaBuildValue(format, vargs); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 455 | va_end(vargs); |
| 456 | |
| 457 | if (args == NULL) { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 458 | Py_DECREF(meth); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 459 | return NULL; |
| 460 | } |
| 461 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 462 | res = PyEval_CallObject(meth, args); |
| 463 | Py_DECREF(meth); |
| 464 | Py_DECREF(args); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 465 | |
| 466 | return res; |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 467 | } |