Guido van Rossum | f70e43a | 1991-02-19 12:39:46 +0000 | [diff] [blame] | 1 | |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 2 | /* Module support implementation */ |
| 3 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 4 | #include "Python.h" |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 5 | |
Guido van Rossum | 1d5735e | 1994-08-30 08:27:36 +0000 | [diff] [blame] | 6 | typedef double va_double; |
Guido van Rossum | 1d5735e | 1994-08-30 08:27:36 +0000 | [diff] [blame] | 7 | |
Guido van Rossum | 2e58ff3 | 1997-11-19 18:53:33 +0000 | [diff] [blame] | 8 | /* Package context -- the full module name for package imports */ |
| 9 | char *_Py_PackageContext = NULL; |
| 10 | |
Guido van Rossum | 40b33c6 | 1997-08-02 03:07:46 +0000 | [diff] [blame] | 11 | /* Py_InitModule4() parameters: |
Guido van Rossum | 970a0a2 | 1995-01-09 17:47:20 +0000 | [diff] [blame] | 12 | - name is the module name |
| 13 | - methods is the list of top-level functions |
| 14 | - doc is the documentation string |
| 15 | - passthrough is passed as self to functions defined in the module |
| 16 | - api_version is the value of PYTHON_API_VERSION at the time the |
| 17 | module was compiled |
Guido van Rossum | 40b33c6 | 1997-08-02 03:07:46 +0000 | [diff] [blame] | 18 | |
| 19 | Return value is a borrowed reference to the module object; or NULL |
| 20 | if an error occurred (in Python 1.4 and before, errors were fatal). |
| 21 | Errors may still leak memory. |
Guido van Rossum | 50620fa | 1995-01-07 12:43:18 +0000 | [diff] [blame] | 22 | */ |
Guido van Rossum | 1d5735e | 1994-08-30 08:27:36 +0000 | [diff] [blame] | 23 | |
Guido van Rossum | 970a0a2 | 1995-01-09 17:47:20 +0000 | [diff] [blame] | 24 | static char api_version_warning[] = |
Marc-André Lemburg | e5006eb | 2001-07-31 13:24:44 +0000 | [diff] [blame] | 25 | "Python C API version mismatch for module %.100s:\ |
| 26 | This Python has API version %d, module %.100s has version %d."; |
Guido van Rossum | 970a0a2 | 1995-01-09 17:47:20 +0000 | [diff] [blame] | 27 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 28 | PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 29 | Py_InitModule4(char *name, PyMethodDef *methods, char *doc, |
| 30 | PyObject *passthrough, int module_api_version) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 31 | { |
Jeremy Hylton | 4f0dcc9 | 2003-01-31 18:33:18 +0000 | [diff] [blame] | 32 | PyObject *m, *d, *v, *n; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 33 | PyMethodDef *ml; |
Guido van Rossum | 413407f | 2000-08-04 14:00:14 +0000 | [diff] [blame] | 34 | if (!Py_IsInitialized()) |
| 35 | Py_FatalError("Interpreter not initialized (version mismatch?)"); |
Marc-André Lemburg | e5006eb | 2001-07-31 13:24:44 +0000 | [diff] [blame] | 36 | if (module_api_version != PYTHON_API_VERSION) { |
| 37 | char message[512]; |
| 38 | PyOS_snprintf(message, sizeof(message), |
| 39 | api_version_warning, name, |
| 40 | PYTHON_API_VERSION, name, |
| 41 | module_api_version); |
| 42 | if (PyErr_Warn(PyExc_RuntimeWarning, message)) |
| 43 | return NULL; |
| 44 | } |
Jeremy Hylton | 4f0dcc9 | 2003-01-31 18:33:18 +0000 | [diff] [blame] | 45 | /* Make sure name is fully qualified. |
| 46 | |
| 47 | This is a bit of a hack: when the shared library is loaded, |
| 48 | the module name is "package.module", but the module calls |
| 49 | Py_InitModule*() with just "module" for the name. The shared |
| 50 | library loader squirrels away the true name of the module in |
| 51 | _Py_PackageContext, and Py_InitModule*() will substitute this |
| 52 | (if the name actually matches). |
| 53 | */ |
Guido van Rossum | 2e58ff3 | 1997-11-19 18:53:33 +0000 | [diff] [blame] | 54 | if (_Py_PackageContext != NULL) { |
| 55 | char *p = strrchr(_Py_PackageContext, '.'); |
| 56 | if (p != NULL && strcmp(name, p+1) == 0) { |
| 57 | name = _Py_PackageContext; |
| 58 | _Py_PackageContext = NULL; |
| 59 | } |
| 60 | } |
Guido van Rossum | 40b33c6 | 1997-08-02 03:07:46 +0000 | [diff] [blame] | 61 | if ((m = PyImport_AddModule(name)) == NULL) |
| 62 | return NULL; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 63 | d = PyModule_GetDict(m); |
Fred Drake | 233cc59 | 2002-08-14 20:57:56 +0000 | [diff] [blame] | 64 | if (methods != NULL) { |
Jeremy Hylton | 4f0dcc9 | 2003-01-31 18:33:18 +0000 | [diff] [blame] | 65 | n = PyString_FromString(name); |
| 66 | if (n == NULL) |
| 67 | return NULL; |
Fred Drake | 233cc59 | 2002-08-14 20:57:56 +0000 | [diff] [blame] | 68 | for (ml = methods; ml->ml_name != NULL; ml++) { |
| 69 | if ((ml->ml_flags & METH_CLASS) || |
| 70 | (ml->ml_flags & METH_STATIC)) { |
| 71 | PyErr_SetString(PyExc_ValueError, |
| 72 | "module functions cannot set" |
| 73 | " METH_CLASS or METH_STATIC"); |
| 74 | return NULL; |
| 75 | } |
Jeremy Hylton | 4f0dcc9 | 2003-01-31 18:33:18 +0000 | [diff] [blame] | 76 | v = PyCFunction_NewEx(ml, passthrough, n); |
Fred Drake | 233cc59 | 2002-08-14 20:57:56 +0000 | [diff] [blame] | 77 | if (v == NULL) |
| 78 | return NULL; |
| 79 | if (PyDict_SetItemString(d, ml->ml_name, v) != 0) { |
| 80 | Py_DECREF(v); |
| 81 | return NULL; |
| 82 | } |
Fred Drake | 289898c | 2001-08-04 03:11:25 +0000 | [diff] [blame] | 83 | Py_DECREF(v); |
Fred Drake | 289898c | 2001-08-04 03:11:25 +0000 | [diff] [blame] | 84 | } |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 85 | } |
Guido van Rossum | 50620fa | 1995-01-07 12:43:18 +0000 | [diff] [blame] | 86 | if (doc != NULL) { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 87 | v = PyString_FromString(doc); |
Fred Drake | 289898c | 2001-08-04 03:11:25 +0000 | [diff] [blame] | 88 | if (v == NULL || PyDict_SetItemString(d, "__doc__", v) != 0) { |
Just van Rossum | bbfd859 | 2002-12-15 13:45:32 +0000 | [diff] [blame] | 89 | Py_XDECREF(v); |
Guido van Rossum | 40b33c6 | 1997-08-02 03:07:46 +0000 | [diff] [blame] | 90 | return NULL; |
Fred Drake | 289898c | 2001-08-04 03:11:25 +0000 | [diff] [blame] | 91 | } |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 92 | Py_DECREF(v); |
Guido van Rossum | 50620fa | 1995-01-07 12:43:18 +0000 | [diff] [blame] | 93 | } |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 94 | return m; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 95 | } |
| 96 | |
| 97 | |
Guido van Rossum | bf80e54 | 1993-02-08 15:49:17 +0000 | [diff] [blame] | 98 | /* Helper for mkvalue() to scan the length of a format */ |
Guido van Rossum | fc61adb | 1992-04-13 15:53:41 +0000 | [diff] [blame] | 99 | |
Fred Drake | ceead6d | 2003-01-30 15:08:25 +0000 | [diff] [blame] | 100 | static int |
| 101 | countformat(char *format, int endchar) |
Guido van Rossum | fc61adb | 1992-04-13 15:53:41 +0000 | [diff] [blame] | 102 | { |
| 103 | int count = 0; |
| 104 | int level = 0; |
| 105 | while (level > 0 || *format != endchar) { |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 106 | switch (*format) { |
| 107 | case '\0': |
Guido van Rossum | fc61adb | 1992-04-13 15:53:41 +0000 | [diff] [blame] | 108 | /* Premature end */ |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 109 | PyErr_SetString(PyExc_SystemError, |
| 110 | "unmatched paren in format"); |
Guido van Rossum | fc61adb | 1992-04-13 15:53:41 +0000 | [diff] [blame] | 111 | return -1; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 112 | case '(': |
| 113 | case '[': |
| 114 | case '{': |
Guido van Rossum | fc61adb | 1992-04-13 15:53:41 +0000 | [diff] [blame] | 115 | if (level == 0) |
| 116 | count++; |
| 117 | level++; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 118 | break; |
| 119 | case ')': |
| 120 | case ']': |
| 121 | case '}': |
Guido van Rossum | fc61adb | 1992-04-13 15:53:41 +0000 | [diff] [blame] | 122 | level--; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 123 | break; |
| 124 | case '#': |
Guido van Rossum | d1b9393 | 1995-01-20 16:56:02 +0000 | [diff] [blame] | 125 | case '&': |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 126 | case ',': |
| 127 | case ':': |
| 128 | case ' ': |
| 129 | case '\t': |
| 130 | break; |
| 131 | default: |
| 132 | if (level == 0) |
| 133 | count++; |
| 134 | } |
Guido van Rossum | fc61adb | 1992-04-13 15:53:41 +0000 | [diff] [blame] | 135 | format++; |
| 136 | } |
| 137 | return count; |
| 138 | } |
| 139 | |
| 140 | |
Guido van Rossum | fc61adb | 1992-04-13 15:53:41 +0000 | [diff] [blame] | 141 | /* Generic function to create a value -- the inverse of getargs() */ |
| 142 | /* After an original idea and first implementation by Steven Miale */ |
| 143 | |
Tim Peters | dbd9ba6 | 2000-07-09 03:09:57 +0000 | [diff] [blame] | 144 | static PyObject *do_mktuple(char**, va_list *, int, int); |
| 145 | static PyObject *do_mklist(char**, va_list *, int, int); |
| 146 | static PyObject *do_mkdict(char**, va_list *, int, int); |
| 147 | static PyObject *do_mkvalue(char**, va_list *); |
Guido van Rossum | fc61adb | 1992-04-13 15:53:41 +0000 | [diff] [blame] | 148 | |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 149 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 150 | static PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 151 | 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] | 152 | { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 153 | PyObject *d; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 154 | int i; |
Michael W. Hudson | c849e63 | 2004-07-14 11:28:06 +0000 | [diff] [blame] | 155 | int itemfailed = 0; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 156 | if (n < 0) |
| 157 | return NULL; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 158 | if ((d = PyDict_New()) == NULL) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 159 | return NULL; |
Michael W. Hudson | c849e63 | 2004-07-14 11:28:06 +0000 | [diff] [blame] | 160 | /* Note that we can't bail immediately on error as this will leak |
| 161 | refcounts on any 'N' arguments. */ |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 162 | for (i = 0; i < n; i+= 2) { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 163 | PyObject *k, *v; |
Guido van Rossum | db847bd | 1997-11-20 20:35:45 +0000 | [diff] [blame] | 164 | int err; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 165 | k = do_mkvalue(p_format, p_va); |
| 166 | if (k == NULL) { |
Michael W. Hudson | c849e63 | 2004-07-14 11:28:06 +0000 | [diff] [blame] | 167 | itemfailed = 1; |
| 168 | Py_INCREF(Py_None); |
| 169 | k = Py_None; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 170 | } |
| 171 | v = do_mkvalue(p_format, p_va); |
| 172 | if (v == NULL) { |
Michael W. Hudson | c849e63 | 2004-07-14 11:28:06 +0000 | [diff] [blame] | 173 | itemfailed = 1; |
| 174 | Py_INCREF(Py_None); |
| 175 | v = Py_None; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 176 | } |
Guido van Rossum | db847bd | 1997-11-20 20:35:45 +0000 | [diff] [blame] | 177 | err = PyDict_SetItem(d, k, v); |
| 178 | Py_DECREF(k); |
| 179 | Py_DECREF(v); |
Michael W. Hudson | c849e63 | 2004-07-14 11:28:06 +0000 | [diff] [blame] | 180 | if (err < 0 || itemfailed) { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 181 | Py_DECREF(d); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 182 | return NULL; |
| 183 | } |
| 184 | } |
| 185 | if (d != NULL && **p_format != endchar) { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 186 | Py_DECREF(d); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 187 | d = NULL; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 188 | PyErr_SetString(PyExc_SystemError, |
| 189 | "Unmatched paren in format"); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 190 | } |
| 191 | else if (endchar) |
| 192 | ++*p_format; |
| 193 | return d; |
| 194 | } |
| 195 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 196 | static PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 197 | 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] | 198 | { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 199 | PyObject *v; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 200 | int i; |
Michael W. Hudson | c849e63 | 2004-07-14 11:28:06 +0000 | [diff] [blame] | 201 | int itemfailed = 0; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 202 | if (n < 0) |
| 203 | return NULL; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 204 | if ((v = PyList_New(n)) == NULL) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 205 | return NULL; |
Michael W. Hudson | c849e63 | 2004-07-14 11:28:06 +0000 | [diff] [blame] | 206 | /* Note that we can't bail immediately on error as this will leak |
| 207 | refcounts on any 'N' arguments. */ |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 208 | for (i = 0; i < n; i++) { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 209 | PyObject *w = do_mkvalue(p_format, p_va); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 210 | if (w == NULL) { |
Michael W. Hudson | c849e63 | 2004-07-14 11:28:06 +0000 | [diff] [blame] | 211 | itemfailed = 1; |
| 212 | Py_INCREF(Py_None); |
| 213 | w = Py_None; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 214 | } |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 215 | PyList_SetItem(v, i, w); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 216 | } |
| 217 | if (v != NULL && **p_format != endchar) { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 218 | Py_DECREF(v); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 219 | v = NULL; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 220 | PyErr_SetString(PyExc_SystemError, |
| 221 | "Unmatched paren in format"); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 222 | } |
| 223 | else if (endchar) |
| 224 | ++*p_format; |
Michael W. Hudson | c849e63 | 2004-07-14 11:28:06 +0000 | [diff] [blame] | 225 | if (itemfailed) { |
| 226 | Py_DECREF(v); |
| 227 | v = NULL; |
| 228 | } |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 229 | return v; |
| 230 | } |
| 231 | |
Martin v. Löwis | 339d0f7 | 2001-08-17 18:39:25 +0000 | [diff] [blame] | 232 | #ifdef Py_USING_UNICODE |
Fred Drake | 25d3447 | 2000-04-28 14:42:37 +0000 | [diff] [blame] | 233 | static int |
| 234 | _ustrlen(Py_UNICODE *u) |
| 235 | { |
| 236 | int i = 0; |
| 237 | Py_UNICODE *v = u; |
| 238 | while (*v != 0) { i++; v++; } |
| 239 | return i; |
| 240 | } |
Martin v. Löwis | 339d0f7 | 2001-08-17 18:39:25 +0000 | [diff] [blame] | 241 | #endif |
Fred Drake | 25d3447 | 2000-04-28 14:42:37 +0000 | [diff] [blame] | 242 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 243 | static PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 244 | 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] | 245 | { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 246 | PyObject *v; |
Guido van Rossum | fc61adb | 1992-04-13 15:53:41 +0000 | [diff] [blame] | 247 | int i; |
Michael W. Hudson | c849e63 | 2004-07-14 11:28:06 +0000 | [diff] [blame] | 248 | int itemfailed = 0; |
Guido van Rossum | fc61adb | 1992-04-13 15:53:41 +0000 | [diff] [blame] | 249 | if (n < 0) |
| 250 | return NULL; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 251 | if ((v = PyTuple_New(n)) == NULL) |
Guido van Rossum | fc61adb | 1992-04-13 15:53:41 +0000 | [diff] [blame] | 252 | return NULL; |
Michael W. Hudson | c849e63 | 2004-07-14 11:28:06 +0000 | [diff] [blame] | 253 | /* Note that we can't bail immediately on error as this will leak |
| 254 | refcounts on any 'N' arguments. */ |
Guido van Rossum | fc61adb | 1992-04-13 15:53:41 +0000 | [diff] [blame] | 255 | for (i = 0; i < n; i++) { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 256 | PyObject *w = do_mkvalue(p_format, p_va); |
Guido van Rossum | fc61adb | 1992-04-13 15:53:41 +0000 | [diff] [blame] | 257 | if (w == NULL) { |
Michael W. Hudson | c849e63 | 2004-07-14 11:28:06 +0000 | [diff] [blame] | 258 | itemfailed = 1; |
| 259 | Py_INCREF(Py_None); |
| 260 | w = Py_None; |
Guido van Rossum | fc61adb | 1992-04-13 15:53:41 +0000 | [diff] [blame] | 261 | } |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 262 | PyTuple_SetItem(v, i, w); |
Guido van Rossum | fc61adb | 1992-04-13 15:53:41 +0000 | [diff] [blame] | 263 | } |
| 264 | if (v != NULL && **p_format != endchar) { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 265 | Py_DECREF(v); |
Guido van Rossum | fc61adb | 1992-04-13 15:53:41 +0000 | [diff] [blame] | 266 | v = NULL; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 267 | PyErr_SetString(PyExc_SystemError, |
| 268 | "Unmatched paren in format"); |
Guido van Rossum | fc61adb | 1992-04-13 15:53:41 +0000 | [diff] [blame] | 269 | } |
| 270 | else if (endchar) |
| 271 | ++*p_format; |
Michael W. Hudson | c849e63 | 2004-07-14 11:28:06 +0000 | [diff] [blame] | 272 | if (itemfailed) { |
| 273 | Py_DECREF(v); |
| 274 | v = NULL; |
| 275 | } |
Guido van Rossum | fc61adb | 1992-04-13 15:53:41 +0000 | [diff] [blame] | 276 | return v; |
| 277 | } |
| 278 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 279 | static PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 280 | do_mkvalue(char **p_format, va_list *p_va) |
Guido van Rossum | 899dcf3 | 1992-05-15 11:04:59 +0000 | [diff] [blame] | 281 | { |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 282 | for (;;) { |
| 283 | switch (*(*p_format)++) { |
| 284 | case '(': |
| 285 | return do_mktuple(p_format, p_va, ')', |
| 286 | countformat(*p_format, ')')); |
| 287 | |
| 288 | case '[': |
| 289 | return do_mklist(p_format, p_va, ']', |
| 290 | countformat(*p_format, ']')); |
| 291 | |
| 292 | case '{': |
| 293 | return do_mkdict(p_format, p_va, '}', |
| 294 | countformat(*p_format, '}')); |
| 295 | |
| 296 | case 'b': |
Jack Jansen | b763b9d | 2000-09-15 12:51:01 +0000 | [diff] [blame] | 297 | case 'B': |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 298 | case 'h': |
| 299 | case 'i': |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 300 | return PyInt_FromLong((long)va_arg(*p_va, int)); |
Jack Jansen | d50338f | 2000-07-06 12:22:00 +0000 | [diff] [blame] | 301 | |
| 302 | case 'H': |
| 303 | return PyInt_FromLong((long)va_arg(*p_va, unsigned int)); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 304 | |
| 305 | case 'l': |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 306 | return PyInt_FromLong((long)va_arg(*p_va, long)); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 307 | |
Jack Jansen | dbd6503 | 2003-04-17 22:01:10 +0000 | [diff] [blame] | 308 | case 'k': |
| 309 | return PyInt_FromLong((long)va_arg(*p_va, unsigned long)); |
| 310 | |
Guido van Rossum | 3dbba6e | 1999-01-25 21:48:56 +0000 | [diff] [blame] | 311 | #ifdef HAVE_LONG_LONG |
Guido van Rossum | 1a8791e | 1998-08-04 22:46:29 +0000 | [diff] [blame] | 312 | case 'L': |
Martin v. Löwis | b9a0f91 | 2003-03-29 10:06:18 +0000 | [diff] [blame] | 313 | return PyLong_FromLongLong((PY_LONG_LONG)va_arg(*p_va, PY_LONG_LONG)); |
Jack Jansen | dbd6503 | 2003-04-17 22:01:10 +0000 | [diff] [blame] | 314 | |
| 315 | case 'K': |
| 316 | return PyLong_FromLongLong((PY_LONG_LONG)va_arg(*p_va, unsigned PY_LONG_LONG)); |
Guido van Rossum | 1a8791e | 1998-08-04 22:46:29 +0000 | [diff] [blame] | 317 | #endif |
Martin v. Löwis | 339d0f7 | 2001-08-17 18:39:25 +0000 | [diff] [blame] | 318 | #ifdef Py_USING_UNICODE |
Fred Drake | 25d3447 | 2000-04-28 14:42:37 +0000 | [diff] [blame] | 319 | case 'u': |
| 320 | { |
| 321 | PyObject *v; |
| 322 | Py_UNICODE *u = va_arg(*p_va, Py_UNICODE *); |
| 323 | int n; |
| 324 | if (**p_format == '#') { |
| 325 | ++*p_format; |
| 326 | n = va_arg(*p_va, int); |
| 327 | } |
| 328 | else |
| 329 | n = -1; |
| 330 | if (u == NULL) { |
| 331 | v = Py_None; |
| 332 | Py_INCREF(v); |
| 333 | } |
| 334 | else { |
| 335 | if (n < 0) |
| 336 | n = _ustrlen(u); |
| 337 | v = PyUnicode_FromUnicode(u, n); |
| 338 | } |
| 339 | return v; |
| 340 | } |
Martin v. Löwis | 339d0f7 | 2001-08-17 18:39:25 +0000 | [diff] [blame] | 341 | #endif |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 342 | case 'f': |
| 343 | case 'd': |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 344 | return PyFloat_FromDouble( |
| 345 | (double)va_arg(*p_va, va_double)); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 346 | |
Fred Drake | aec7924 | 2001-03-12 21:03:26 +0000 | [diff] [blame] | 347 | #ifndef WITHOUT_COMPLEX |
| 348 | case 'D': |
| 349 | return PyComplex_FromCComplex( |
| 350 | *((Py_complex *)va_arg(*p_va, Py_complex *))); |
| 351 | #endif /* WITHOUT_COMPLEX */ |
| 352 | |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 353 | case 'c': |
Guido van Rossum | fc61adb | 1992-04-13 15:53:41 +0000 | [diff] [blame] | 354 | { |
| 355 | char p[1]; |
| 356 | p[0] = va_arg(*p_va, int); |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 357 | return PyString_FromStringAndSize(p, 1); |
Guido van Rossum | fc61adb | 1992-04-13 15:53:41 +0000 | [diff] [blame] | 358 | } |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 359 | |
| 360 | case 's': |
| 361 | case 'z': |
Guido van Rossum | 3cfe6fa | 1992-04-13 10:48:55 +0000 | [diff] [blame] | 362 | { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 363 | PyObject *v; |
Guido van Rossum | 3cfe6fa | 1992-04-13 10:48:55 +0000 | [diff] [blame] | 364 | char *str = va_arg(*p_va, char *); |
| 365 | int n; |
| 366 | if (**p_format == '#') { |
| 367 | ++*p_format; |
| 368 | n = va_arg(*p_va, int); |
| 369 | } |
| 370 | else |
| 371 | n = -1; |
| 372 | if (str == NULL) { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 373 | v = Py_None; |
| 374 | Py_INCREF(v); |
Guido van Rossum | 3cfe6fa | 1992-04-13 10:48:55 +0000 | [diff] [blame] | 375 | } |
| 376 | else { |
Guido van Rossum | 582acec | 2000-06-28 22:07:35 +0000 | [diff] [blame] | 377 | if (n < 0) { |
| 378 | size_t m = strlen(str); |
| 379 | if (m > INT_MAX) { |
| 380 | PyErr_SetString(PyExc_OverflowError, |
| 381 | "string too long for Python string"); |
| 382 | return NULL; |
| 383 | } |
| 384 | n = (int)m; |
| 385 | } |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 386 | v = PyString_FromStringAndSize(str, n); |
Guido van Rossum | 3cfe6fa | 1992-04-13 10:48:55 +0000 | [diff] [blame] | 387 | } |
Guido van Rossum | fc61adb | 1992-04-13 15:53:41 +0000 | [diff] [blame] | 388 | return v; |
Guido van Rossum | 3cfe6fa | 1992-04-13 10:48:55 +0000 | [diff] [blame] | 389 | } |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 390 | |
Guido van Rossum | d341500 | 1998-12-23 05:01:38 +0000 | [diff] [blame] | 391 | case 'N': |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 392 | case 'S': |
| 393 | case 'O': |
Guido van Rossum | d1b9393 | 1995-01-20 16:56:02 +0000 | [diff] [blame] | 394 | if (**p_format == '&') { |
Tim Peters | dbd9ba6 | 2000-07-09 03:09:57 +0000 | [diff] [blame] | 395 | typedef PyObject *(*converter)(void *); |
Guido van Rossum | d1b9393 | 1995-01-20 16:56:02 +0000 | [diff] [blame] | 396 | converter func = va_arg(*p_va, converter); |
| 397 | void *arg = va_arg(*p_va, void *); |
| 398 | ++*p_format; |
| 399 | return (*func)(arg); |
| 400 | } |
| 401 | else { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 402 | PyObject *v; |
| 403 | v = va_arg(*p_va, PyObject *); |
Guido van Rossum | c38e7d4 | 1998-12-23 19:53:45 +0000 | [diff] [blame] | 404 | if (v != NULL) { |
Guido van Rossum | d341500 | 1998-12-23 05:01:38 +0000 | [diff] [blame] | 405 | if (*(*p_format - 1) != 'N') |
| 406 | Py_INCREF(v); |
Guido van Rossum | c38e7d4 | 1998-12-23 19:53:45 +0000 | [diff] [blame] | 407 | } |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 408 | else if (!PyErr_Occurred()) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 409 | /* If a NULL was passed |
| 410 | * because a call that should |
| 411 | * have constructed a value |
| 412 | * failed, that's OK, and we |
| 413 | * pass the error on; but if |
| 414 | * no error occurred it's not |
| 415 | * clear that the caller knew |
| 416 | * what she was doing. */ |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 417 | PyErr_SetString(PyExc_SystemError, |
Guido van Rossum | 233f4b5 | 1998-07-07 22:32:19 +0000 | [diff] [blame] | 418 | "NULL object passed to Py_BuildValue"); |
Guido van Rossum | fc61adb | 1992-04-13 15:53:41 +0000 | [diff] [blame] | 419 | return v; |
Guido van Rossum | 3cfe6fa | 1992-04-13 10:48:55 +0000 | [diff] [blame] | 420 | } |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 421 | |
| 422 | case ':': |
| 423 | case ',': |
| 424 | case ' ': |
| 425 | case '\t': |
| 426 | break; |
| 427 | |
| 428 | default: |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 429 | PyErr_SetString(PyExc_SystemError, |
Guido van Rossum | 233f4b5 | 1998-07-07 22:32:19 +0000 | [diff] [blame] | 430 | "bad format char passed to Py_BuildValue"); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 431 | return NULL; |
| 432 | |
| 433 | } |
Guido van Rossum | 3cfe6fa | 1992-04-13 10:48:55 +0000 | [diff] [blame] | 434 | } |
Guido van Rossum | 3cfe6fa | 1992-04-13 10:48:55 +0000 | [diff] [blame] | 435 | } |
| 436 | |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 437 | |
Fred Drake | ceead6d | 2003-01-30 15:08:25 +0000 | [diff] [blame] | 438 | PyObject * |
| 439 | Py_BuildValue(char *format, ...) |
Guido van Rossum | 3cfe6fa | 1992-04-13 10:48:55 +0000 | [diff] [blame] | 440 | { |
Guido van Rossum | fc61adb | 1992-04-13 15:53:41 +0000 | [diff] [blame] | 441 | va_list va; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 442 | PyObject* retval; |
Guido van Rossum | fc61adb | 1992-04-13 15:53:41 +0000 | [diff] [blame] | 443 | va_start(va, format); |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 444 | retval = Py_VaBuildValue(format, va); |
Guido van Rossum | fc61adb | 1992-04-13 15:53:41 +0000 | [diff] [blame] | 445 | va_end(va); |
Guido van Rossum | fc61adb | 1992-04-13 15:53:41 +0000 | [diff] [blame] | 446 | return retval; |
Guido van Rossum | 3cfe6fa | 1992-04-13 10:48:55 +0000 | [diff] [blame] | 447 | } |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 448 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 449 | PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 450 | Py_VaBuildValue(char *format, va_list va) |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 451 | { |
| 452 | char *f = format; |
| 453 | int n = countformat(f, '\0'); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 454 | va_list lva; |
| 455 | |
| 456 | #ifdef VA_LIST_IS_ARRAY |
| 457 | memcpy(lva, va, sizeof(va_list)); |
| 458 | #else |
Martin v. Löwis | 75d2d94 | 2002-07-28 10:23:27 +0000 | [diff] [blame] | 459 | #ifdef __va_copy |
| 460 | __va_copy(lva, va); |
| 461 | #else |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 462 | lva = va; |
| 463 | #endif |
Martin v. Löwis | 75d2d94 | 2002-07-28 10:23:27 +0000 | [diff] [blame] | 464 | #endif |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 465 | |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 466 | if (n < 0) |
| 467 | return NULL; |
| 468 | if (n == 0) { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 469 | Py_INCREF(Py_None); |
| 470 | return Py_None; |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 471 | } |
| 472 | if (n == 1) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 473 | return do_mkvalue(&f, &lva); |
| 474 | return do_mktuple(&f, &lva, '\0', n); |
| 475 | } |
| 476 | |
| 477 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 478 | PyObject * |
| 479 | PyEval_CallFunction(PyObject *obj, char *format, ...) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 480 | { |
| 481 | va_list vargs; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 482 | PyObject *args; |
| 483 | PyObject *res; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 484 | |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 485 | va_start(vargs, format); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 486 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 487 | args = Py_VaBuildValue(format, vargs); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 488 | va_end(vargs); |
| 489 | |
| 490 | if (args == NULL) |
| 491 | return NULL; |
| 492 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 493 | res = PyEval_CallObject(obj, args); |
| 494 | Py_DECREF(args); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 495 | |
| 496 | return res; |
| 497 | } |
| 498 | |
| 499 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 500 | PyObject * |
Guido van Rossum | c4099e6 | 1998-08-08 20:51:26 +0000 | [diff] [blame] | 501 | PyEval_CallMethod(PyObject *obj, char *methodname, char *format, ...) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 502 | { |
| 503 | va_list vargs; |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 504 | PyObject *meth; |
| 505 | PyObject *args; |
| 506 | PyObject *res; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 507 | |
Guido van Rossum | c4099e6 | 1998-08-08 20:51:26 +0000 | [diff] [blame] | 508 | meth = PyObject_GetAttrString(obj, methodname); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 509 | if (meth == NULL) |
| 510 | return NULL; |
| 511 | |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 512 | va_start(vargs, format); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 513 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 514 | args = Py_VaBuildValue(format, vargs); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 515 | va_end(vargs); |
| 516 | |
| 517 | if (args == NULL) { |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 518 | Py_DECREF(meth); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 519 | return NULL; |
| 520 | } |
| 521 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 522 | res = PyEval_CallObject(meth, args); |
| 523 | Py_DECREF(meth); |
| 524 | Py_DECREF(args); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 525 | |
| 526 | return res; |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 527 | } |
Fred Drake | 9e28515 | 2000-09-23 03:24:27 +0000 | [diff] [blame] | 528 | |
| 529 | int |
| 530 | PyModule_AddObject(PyObject *m, char *name, PyObject *o) |
| 531 | { |
| 532 | PyObject *dict; |
Jeremy Hylton | c44dbc4 | 2003-06-21 21:35:25 +0000 | [diff] [blame] | 533 | if (!PyModule_Check(m)) { |
Fred Drake | 8311518 | 2002-06-17 17:16:57 +0000 | [diff] [blame] | 534 | PyErr_SetString(PyExc_TypeError, |
| 535 | "PyModule_AddObject() needs module as first arg"); |
Fred Drake | 9e28515 | 2000-09-23 03:24:27 +0000 | [diff] [blame] | 536 | return -1; |
Fred Drake | 8311518 | 2002-06-17 17:16:57 +0000 | [diff] [blame] | 537 | } |
Jeremy Hylton | c44dbc4 | 2003-06-21 21:35:25 +0000 | [diff] [blame] | 538 | if (!o) { |
Martin v. Löwis | f8d59d2 | 2003-10-24 20:05:32 +0000 | [diff] [blame] | 539 | if (!PyErr_Occurred()) |
| 540 | PyErr_SetString(PyExc_TypeError, |
| 541 | "PyModule_AddObject() needs non-NULL value"); |
Jeremy Hylton | c44dbc4 | 2003-06-21 21:35:25 +0000 | [diff] [blame] | 542 | return -1; |
| 543 | } |
| 544 | |
Fred Drake | 8311518 | 2002-06-17 17:16:57 +0000 | [diff] [blame] | 545 | dict = PyModule_GetDict(m); |
| 546 | if (dict == NULL) { |
| 547 | /* Internal error -- modules must have a dict! */ |
| 548 | PyErr_Format(PyExc_SystemError, "module '%s' has no __dict__", |
| 549 | PyModule_GetName(m)); |
| 550 | return -1; |
| 551 | } |
| 552 | if (PyDict_SetItemString(dict, name, o)) |
| 553 | return -1; |
| 554 | Py_DECREF(o); |
| 555 | return 0; |
Fred Drake | 9e28515 | 2000-09-23 03:24:27 +0000 | [diff] [blame] | 556 | } |
| 557 | |
| 558 | int |
| 559 | PyModule_AddIntConstant(PyObject *m, char *name, long value) |
| 560 | { |
| 561 | return PyModule_AddObject(m, name, PyInt_FromLong(value)); |
| 562 | } |
| 563 | |
| 564 | int |
| 565 | PyModule_AddStringConstant(PyObject *m, char *name, char *value) |
| 566 | { |
| 567 | return PyModule_AddObject(m, name, PyString_FromString(value)); |
| 568 | } |