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 | /* String object implementation */ |
| 3 | |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 4 | #include "Python.h" |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 5 | |
Guido van Rossum | 013142a | 1994-08-30 08:19:36 +0000 | [diff] [blame] | 6 | #include <ctype.h> |
| 7 | |
Sjoerd Mullender | 3bb8a05 | 1993-10-22 12:04:32 +0000 | [diff] [blame] | 8 | #ifdef COUNT_ALLOCS |
| 9 | int null_strings, one_strings; |
| 10 | #endif |
| 11 | |
Fred Drake | d5fadf7 | 2000-09-26 05:46:01 +0000 | [diff] [blame] | 12 | #if !defined(HAVE_LIMITS_H) && !defined(UCHAR_MAX) |
Sjoerd Mullender | 3bb8a05 | 1993-10-22 12:04:32 +0000 | [diff] [blame] | 13 | #define UCHAR_MAX 255 |
| 14 | #endif |
Sjoerd Mullender | 3bb8a05 | 1993-10-22 12:04:32 +0000 | [diff] [blame] | 15 | |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 16 | static PyStringObject *characters[UCHAR_MAX + 1]; |
Sjoerd Mullender | 615194a | 1993-11-01 13:46:50 +0000 | [diff] [blame] | 17 | #ifndef DONT_SHARE_SHORT_STRINGS |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 18 | static PyStringObject *nullstring; |
Sjoerd Mullender | 615194a | 1993-11-01 13:46:50 +0000 | [diff] [blame] | 19 | #endif |
Sjoerd Mullender | 3bb8a05 | 1993-10-22 12:04:32 +0000 | [diff] [blame] | 20 | |
| 21 | /* |
| 22 | Newsizedstringobject() and newstringobject() try in certain cases |
| 23 | to share string objects. When the size of the string is zero, |
| 24 | these routines always return a pointer to the same string object; |
| 25 | when the size is one, they return a pointer to an already existing |
| 26 | object if the contents of the string is known. For |
| 27 | newstringobject() this is always the case, for |
| 28 | newsizedstringobject() this is the case when the first argument in |
| 29 | not NULL. |
| 30 | A common practice to allocate a string and then fill it in or |
| 31 | change it must be done carefully. It is only allowed to change the |
| 32 | contents of the string if the obect was gotten from |
| 33 | newsizedstringobject() with a NULL first argument, because in the |
| 34 | future these routines may try to do even more sharing of objects. |
| 35 | */ |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 36 | PyObject * |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame] | 37 | PyString_FromStringAndSize(const char *str, int size) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 38 | { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 39 | register PyStringObject *op; |
Sjoerd Mullender | 615194a | 1993-11-01 13:46:50 +0000 | [diff] [blame] | 40 | #ifndef DONT_SHARE_SHORT_STRINGS |
Sjoerd Mullender | 3bb8a05 | 1993-10-22 12:04:32 +0000 | [diff] [blame] | 41 | if (size == 0 && (op = nullstring) != NULL) { |
| 42 | #ifdef COUNT_ALLOCS |
| 43 | null_strings++; |
| 44 | #endif |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 45 | Py_INCREF(op); |
| 46 | return (PyObject *)op; |
Sjoerd Mullender | 3bb8a05 | 1993-10-22 12:04:32 +0000 | [diff] [blame] | 47 | } |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 48 | if (size == 1 && str != NULL && |
| 49 | (op = characters[*str & UCHAR_MAX]) != NULL) |
| 50 | { |
Sjoerd Mullender | 3bb8a05 | 1993-10-22 12:04:32 +0000 | [diff] [blame] | 51 | #ifdef COUNT_ALLOCS |
| 52 | one_strings++; |
| 53 | #endif |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 54 | Py_INCREF(op); |
| 55 | return (PyObject *)op; |
Sjoerd Mullender | 3bb8a05 | 1993-10-22 12:04:32 +0000 | [diff] [blame] | 56 | } |
Sjoerd Mullender | 615194a | 1993-11-01 13:46:50 +0000 | [diff] [blame] | 57 | #endif /* DONT_SHARE_SHORT_STRINGS */ |
Guido van Rossum | b18618d | 2000-05-03 23:44:39 +0000 | [diff] [blame] | 58 | |
| 59 | /* PyObject_NewVar is inlined */ |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 60 | op = (PyStringObject *) |
Guido van Rossum | b18618d | 2000-05-03 23:44:39 +0000 | [diff] [blame] | 61 | PyObject_MALLOC(sizeof(PyStringObject) + size * sizeof(char)); |
Guido van Rossum | 2a9096b | 1990-10-21 22:15:08 +0000 | [diff] [blame] | 62 | if (op == NULL) |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 63 | return PyErr_NoMemory(); |
Guido van Rossum | b18618d | 2000-05-03 23:44:39 +0000 | [diff] [blame] | 64 | PyObject_INIT_VAR(op, &PyString_Type, size); |
Sjoerd Mullender | 3bb8a05 | 1993-10-22 12:04:32 +0000 | [diff] [blame] | 65 | #ifdef CACHE_HASH |
| 66 | op->ob_shash = -1; |
| 67 | #endif |
Guido van Rossum | 2a61e74 | 1997-01-18 07:55:05 +0000 | [diff] [blame] | 68 | #ifdef INTERN_STRINGS |
| 69 | op->ob_sinterned = NULL; |
| 70 | #endif |
Guido van Rossum | 2a9096b | 1990-10-21 22:15:08 +0000 | [diff] [blame] | 71 | if (str != NULL) |
| 72 | memcpy(op->ob_sval, str, size); |
| 73 | op->ob_sval[size] = '\0'; |
Sjoerd Mullender | 615194a | 1993-11-01 13:46:50 +0000 | [diff] [blame] | 74 | #ifndef DONT_SHARE_SHORT_STRINGS |
Sjoerd Mullender | 3bb8a05 | 1993-10-22 12:04:32 +0000 | [diff] [blame] | 75 | if (size == 0) { |
| 76 | nullstring = op; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 77 | Py_INCREF(op); |
Sjoerd Mullender | 3bb8a05 | 1993-10-22 12:04:32 +0000 | [diff] [blame] | 78 | } else if (size == 1 && str != NULL) { |
| 79 | characters[*str & UCHAR_MAX] = op; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 80 | Py_INCREF(op); |
Sjoerd Mullender | 3bb8a05 | 1993-10-22 12:04:32 +0000 | [diff] [blame] | 81 | } |
Sjoerd Mullender | 615194a | 1993-11-01 13:46:50 +0000 | [diff] [blame] | 82 | #endif |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 83 | return (PyObject *) op; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 84 | } |
| 85 | |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 86 | PyObject * |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame] | 87 | PyString_FromString(const char *str) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 88 | { |
Marc-André Lemburg | f28dd83 | 2000-06-30 10:29:57 +0000 | [diff] [blame] | 89 | register size_t size = strlen(str); |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 90 | register PyStringObject *op; |
Marc-André Lemburg | f28dd83 | 2000-06-30 10:29:57 +0000 | [diff] [blame] | 91 | if (size > INT_MAX) { |
| 92 | PyErr_SetString(PyExc_OverflowError, |
| 93 | "string is too long for a Python string"); |
| 94 | return NULL; |
| 95 | } |
Sjoerd Mullender | 615194a | 1993-11-01 13:46:50 +0000 | [diff] [blame] | 96 | #ifndef DONT_SHARE_SHORT_STRINGS |
Sjoerd Mullender | 3bb8a05 | 1993-10-22 12:04:32 +0000 | [diff] [blame] | 97 | if (size == 0 && (op = nullstring) != NULL) { |
| 98 | #ifdef COUNT_ALLOCS |
| 99 | null_strings++; |
| 100 | #endif |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 101 | Py_INCREF(op); |
| 102 | return (PyObject *)op; |
Sjoerd Mullender | 3bb8a05 | 1993-10-22 12:04:32 +0000 | [diff] [blame] | 103 | } |
| 104 | if (size == 1 && (op = characters[*str & UCHAR_MAX]) != NULL) { |
| 105 | #ifdef COUNT_ALLOCS |
| 106 | one_strings++; |
| 107 | #endif |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 108 | Py_INCREF(op); |
| 109 | return (PyObject *)op; |
Sjoerd Mullender | 3bb8a05 | 1993-10-22 12:04:32 +0000 | [diff] [blame] | 110 | } |
Sjoerd Mullender | 615194a | 1993-11-01 13:46:50 +0000 | [diff] [blame] | 111 | #endif /* DONT_SHARE_SHORT_STRINGS */ |
Guido van Rossum | b18618d | 2000-05-03 23:44:39 +0000 | [diff] [blame] | 112 | |
| 113 | /* PyObject_NewVar is inlined */ |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 114 | op = (PyStringObject *) |
Guido van Rossum | b18618d | 2000-05-03 23:44:39 +0000 | [diff] [blame] | 115 | PyObject_MALLOC(sizeof(PyStringObject) + size * sizeof(char)); |
Guido van Rossum | 2a9096b | 1990-10-21 22:15:08 +0000 | [diff] [blame] | 116 | if (op == NULL) |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 117 | return PyErr_NoMemory(); |
Guido van Rossum | b18618d | 2000-05-03 23:44:39 +0000 | [diff] [blame] | 118 | PyObject_INIT_VAR(op, &PyString_Type, size); |
Sjoerd Mullender | 3bb8a05 | 1993-10-22 12:04:32 +0000 | [diff] [blame] | 119 | #ifdef CACHE_HASH |
| 120 | op->ob_shash = -1; |
| 121 | #endif |
Guido van Rossum | 2a61e74 | 1997-01-18 07:55:05 +0000 | [diff] [blame] | 122 | #ifdef INTERN_STRINGS |
| 123 | op->ob_sinterned = NULL; |
| 124 | #endif |
Guido van Rossum | 2a9096b | 1990-10-21 22:15:08 +0000 | [diff] [blame] | 125 | strcpy(op->ob_sval, str); |
Sjoerd Mullender | 615194a | 1993-11-01 13:46:50 +0000 | [diff] [blame] | 126 | #ifndef DONT_SHARE_SHORT_STRINGS |
Sjoerd Mullender | 3bb8a05 | 1993-10-22 12:04:32 +0000 | [diff] [blame] | 127 | if (size == 0) { |
| 128 | nullstring = op; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 129 | Py_INCREF(op); |
Sjoerd Mullender | 3bb8a05 | 1993-10-22 12:04:32 +0000 | [diff] [blame] | 130 | } else if (size == 1) { |
| 131 | characters[*str & UCHAR_MAX] = op; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 132 | Py_INCREF(op); |
Sjoerd Mullender | 3bb8a05 | 1993-10-22 12:04:32 +0000 | [diff] [blame] | 133 | } |
Sjoerd Mullender | 615194a | 1993-11-01 13:46:50 +0000 | [diff] [blame] | 134 | #endif |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 135 | return (PyObject *) op; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 136 | } |
| 137 | |
Marc-André Lemburg | 63f3d17 | 2000-07-06 11:29:01 +0000 | [diff] [blame] | 138 | PyObject *PyString_Decode(const char *s, |
| 139 | int size, |
| 140 | const char *encoding, |
| 141 | const char *errors) |
| 142 | { |
| 143 | PyObject *buffer = NULL, *str; |
| 144 | |
| 145 | if (encoding == NULL) |
| 146 | encoding = PyUnicode_GetDefaultEncoding(); |
| 147 | |
| 148 | /* Decode via the codec registry */ |
| 149 | buffer = PyBuffer_FromMemory((void *)s, size); |
| 150 | if (buffer == NULL) |
| 151 | goto onError; |
| 152 | str = PyCodec_Decode(buffer, encoding, errors); |
| 153 | if (str == NULL) |
| 154 | goto onError; |
| 155 | /* Convert Unicode to a string using the default encoding */ |
| 156 | if (PyUnicode_Check(str)) { |
| 157 | PyObject *temp = str; |
| 158 | str = PyUnicode_AsEncodedString(str, NULL, NULL); |
| 159 | Py_DECREF(temp); |
| 160 | if (str == NULL) |
| 161 | goto onError; |
| 162 | } |
| 163 | if (!PyString_Check(str)) { |
| 164 | PyErr_Format(PyExc_TypeError, |
Andrew M. Kuchling | bd9848d | 2000-07-12 02:58:28 +0000 | [diff] [blame] | 165 | "decoder did not return a string object (type=%.400s)", |
Marc-André Lemburg | 63f3d17 | 2000-07-06 11:29:01 +0000 | [diff] [blame] | 166 | str->ob_type->tp_name); |
| 167 | Py_DECREF(str); |
| 168 | goto onError; |
| 169 | } |
| 170 | Py_DECREF(buffer); |
| 171 | return str; |
| 172 | |
| 173 | onError: |
| 174 | Py_XDECREF(buffer); |
| 175 | return NULL; |
| 176 | } |
| 177 | |
| 178 | PyObject *PyString_Encode(const char *s, |
| 179 | int size, |
| 180 | const char *encoding, |
| 181 | const char *errors) |
| 182 | { |
| 183 | PyObject *v, *str; |
| 184 | |
| 185 | str = PyString_FromStringAndSize(s, size); |
| 186 | if (str == NULL) |
| 187 | return NULL; |
| 188 | v = PyString_AsEncodedString(str, encoding, errors); |
| 189 | Py_DECREF(str); |
| 190 | return v; |
| 191 | } |
| 192 | |
| 193 | PyObject *PyString_AsEncodedString(PyObject *str, |
| 194 | const char *encoding, |
| 195 | const char *errors) |
| 196 | { |
| 197 | PyObject *v; |
| 198 | |
| 199 | if (!PyString_Check(str)) { |
| 200 | PyErr_BadArgument(); |
| 201 | goto onError; |
| 202 | } |
| 203 | |
| 204 | if (encoding == NULL) |
| 205 | encoding = PyUnicode_GetDefaultEncoding(); |
| 206 | |
| 207 | /* Encode via the codec registry */ |
| 208 | v = PyCodec_Encode(str, encoding, errors); |
| 209 | if (v == NULL) |
| 210 | goto onError; |
| 211 | /* Convert Unicode to a string using the default encoding */ |
| 212 | if (PyUnicode_Check(v)) { |
| 213 | PyObject *temp = v; |
| 214 | v = PyUnicode_AsEncodedString(v, NULL, NULL); |
| 215 | Py_DECREF(temp); |
| 216 | if (v == NULL) |
| 217 | goto onError; |
| 218 | } |
| 219 | if (!PyString_Check(v)) { |
| 220 | PyErr_Format(PyExc_TypeError, |
| 221 | "encoder did not return a string object (type=%.400s)", |
| 222 | v->ob_type->tp_name); |
| 223 | Py_DECREF(v); |
| 224 | goto onError; |
| 225 | } |
| 226 | return v; |
| 227 | |
| 228 | onError: |
| 229 | return NULL; |
| 230 | } |
| 231 | |
Guido van Rossum | 234f942 | 1993-06-17 12:35:49 +0000 | [diff] [blame] | 232 | static void |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame] | 233 | string_dealloc(PyObject *op) |
Guido van Rossum | 719f5fa | 1992-03-27 17:31:02 +0000 | [diff] [blame] | 234 | { |
Guido van Rossum | b18618d | 2000-05-03 23:44:39 +0000 | [diff] [blame] | 235 | PyObject_DEL(op); |
Guido van Rossum | 719f5fa | 1992-03-27 17:31:02 +0000 | [diff] [blame] | 236 | } |
| 237 | |
Marc-André Lemburg | d1ba443 | 2000-09-19 21:04:18 +0000 | [diff] [blame] | 238 | static int |
| 239 | string_getsize(register PyObject *op) |
| 240 | { |
| 241 | char *s; |
| 242 | int len; |
| 243 | if (PyString_AsStringAndSize(op, &s, &len)) |
| 244 | return -1; |
| 245 | return len; |
| 246 | } |
| 247 | |
| 248 | static /*const*/ char * |
| 249 | string_getbuffer(register PyObject *op) |
| 250 | { |
| 251 | char *s; |
| 252 | int len; |
| 253 | if (PyString_AsStringAndSize(op, &s, &len)) |
| 254 | return NULL; |
| 255 | return s; |
| 256 | } |
| 257 | |
Guido van Rossum | d7047b3 | 1995-01-02 19:07:15 +0000 | [diff] [blame] | 258 | int |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame] | 259 | PyString_Size(register PyObject *op) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 260 | { |
Marc-André Lemburg | d1ba443 | 2000-09-19 21:04:18 +0000 | [diff] [blame] | 261 | if (!PyString_Check(op)) |
| 262 | return string_getsize(op); |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 263 | return ((PyStringObject *)op) -> ob_size; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 264 | } |
| 265 | |
| 266 | /*const*/ char * |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame] | 267 | PyString_AsString(register PyObject *op) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 268 | { |
Marc-André Lemburg | d1ba443 | 2000-09-19 21:04:18 +0000 | [diff] [blame] | 269 | if (!PyString_Check(op)) |
| 270 | return string_getbuffer(op); |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 271 | return ((PyStringObject *)op) -> ob_sval; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 272 | } |
| 273 | |
Marc-André Lemburg | d1ba443 | 2000-09-19 21:04:18 +0000 | [diff] [blame] | 274 | /* Internal API needed by PyString_AsStringAndSize(): */ |
| 275 | extern |
| 276 | PyObject *_PyUnicode_AsDefaultEncodedString(PyObject *unicode, |
| 277 | const char *errors); |
| 278 | |
| 279 | int |
| 280 | PyString_AsStringAndSize(register PyObject *obj, |
| 281 | register char **s, |
| 282 | register int *len) |
| 283 | { |
| 284 | if (s == NULL) { |
| 285 | PyErr_BadInternalCall(); |
| 286 | return -1; |
| 287 | } |
| 288 | |
| 289 | if (!PyString_Check(obj)) { |
| 290 | if (PyUnicode_Check(obj)) { |
| 291 | obj = _PyUnicode_AsDefaultEncodedString(obj, NULL); |
| 292 | if (obj == NULL) |
| 293 | return -1; |
| 294 | } |
| 295 | else { |
| 296 | PyErr_Format(PyExc_TypeError, |
| 297 | "expected string or Unicode object, " |
| 298 | "%.200s found", obj->ob_type->tp_name); |
| 299 | return -1; |
| 300 | } |
| 301 | } |
| 302 | |
| 303 | *s = PyString_AS_STRING(obj); |
| 304 | if (len != NULL) |
| 305 | *len = PyString_GET_SIZE(obj); |
| 306 | else if ((int)strlen(*s) != PyString_GET_SIZE(obj)) { |
| 307 | PyErr_SetString(PyExc_TypeError, |
| 308 | "expected string without null bytes"); |
| 309 | return -1; |
| 310 | } |
| 311 | return 0; |
| 312 | } |
| 313 | |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 314 | /* Methods */ |
| 315 | |
Guido van Rossum | bcaa31c | 1991-06-07 22:58:57 +0000 | [diff] [blame] | 316 | static int |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame] | 317 | string_print(PyStringObject *op, FILE *fp, int flags) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 318 | { |
| 319 | int i; |
| 320 | char c; |
Guido van Rossum | 444fc7c | 1993-10-26 15:25:16 +0000 | [diff] [blame] | 321 | int quote; |
Guido van Rossum | bcaa31c | 1991-06-07 22:58:57 +0000 | [diff] [blame] | 322 | /* XXX Ought to check for interrupts when writing long strings */ |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 323 | if (flags & Py_PRINT_RAW) { |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 324 | fwrite(op->ob_sval, 1, (int) op->ob_size, fp); |
Guido van Rossum | bcaa31c | 1991-06-07 22:58:57 +0000 | [diff] [blame] | 325 | return 0; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 326 | } |
Guido van Rossum | 444fc7c | 1993-10-26 15:25:16 +0000 | [diff] [blame] | 327 | |
Thomas Wouters | 7e47402 | 2000-07-16 12:04:32 +0000 | [diff] [blame] | 328 | /* figure out which quote to use; single is preferred */ |
Guido van Rossum | 444fc7c | 1993-10-26 15:25:16 +0000 | [diff] [blame] | 329 | quote = '\''; |
| 330 | if (strchr(op->ob_sval, '\'') && !strchr(op->ob_sval, '"')) |
| 331 | quote = '"'; |
| 332 | |
| 333 | fputc(quote, fp); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 334 | for (i = 0; i < op->ob_size; i++) { |
| 335 | c = op->ob_sval[i]; |
Guido van Rossum | 444fc7c | 1993-10-26 15:25:16 +0000 | [diff] [blame] | 336 | if (c == quote || c == '\\') |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 337 | fprintf(fp, "\\%c", c); |
| 338 | else if (c < ' ' || c >= 0177) |
Guido van Rossum | 444fc7c | 1993-10-26 15:25:16 +0000 | [diff] [blame] | 339 | fprintf(fp, "\\%03o", c & 0377); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 340 | else |
Guido van Rossum | 444fc7c | 1993-10-26 15:25:16 +0000 | [diff] [blame] | 341 | fputc(c, fp); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 342 | } |
Guido van Rossum | 444fc7c | 1993-10-26 15:25:16 +0000 | [diff] [blame] | 343 | fputc(quote, fp); |
Guido van Rossum | bcaa31c | 1991-06-07 22:58:57 +0000 | [diff] [blame] | 344 | return 0; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 345 | } |
| 346 | |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 347 | static PyObject * |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame] | 348 | string_repr(register PyStringObject *op) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 349 | { |
Marc-André Lemburg | f28dd83 | 2000-06-30 10:29:57 +0000 | [diff] [blame] | 350 | size_t newsize = 2 + 4 * op->ob_size * sizeof(char); |
| 351 | PyObject *v; |
| 352 | if (newsize > INT_MAX) { |
| 353 | PyErr_SetString(PyExc_OverflowError, |
| 354 | "string is too large to make repr"); |
| 355 | } |
| 356 | v = PyString_FromStringAndSize((char *)NULL, newsize); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 357 | if (v == NULL) { |
Guido van Rossum | bcaa31c | 1991-06-07 22:58:57 +0000 | [diff] [blame] | 358 | return NULL; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 359 | } |
| 360 | else { |
| 361 | register int i; |
| 362 | register char c; |
| 363 | register char *p; |
Guido van Rossum | 444fc7c | 1993-10-26 15:25:16 +0000 | [diff] [blame] | 364 | int quote; |
| 365 | |
Thomas Wouters | 7e47402 | 2000-07-16 12:04:32 +0000 | [diff] [blame] | 366 | /* figure out which quote to use; single is preferred */ |
Guido van Rossum | 444fc7c | 1993-10-26 15:25:16 +0000 | [diff] [blame] | 367 | quote = '\''; |
| 368 | if (strchr(op->ob_sval, '\'') && !strchr(op->ob_sval, '"')) |
| 369 | quote = '"'; |
| 370 | |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 371 | p = ((PyStringObject *)v)->ob_sval; |
Guido van Rossum | 444fc7c | 1993-10-26 15:25:16 +0000 | [diff] [blame] | 372 | *p++ = quote; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 373 | for (i = 0; i < op->ob_size; i++) { |
| 374 | c = op->ob_sval[i]; |
Guido van Rossum | 444fc7c | 1993-10-26 15:25:16 +0000 | [diff] [blame] | 375 | if (c == quote || c == '\\') |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 376 | *p++ = '\\', *p++ = c; |
| 377 | else if (c < ' ' || c >= 0177) { |
Guido van Rossum | 444fc7c | 1993-10-26 15:25:16 +0000 | [diff] [blame] | 378 | sprintf(p, "\\%03o", c & 0377); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 379 | while (*p != '\0') |
| 380 | p++; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 381 | } |
| 382 | else |
| 383 | *p++ = c; |
| 384 | } |
Guido van Rossum | 444fc7c | 1993-10-26 15:25:16 +0000 | [diff] [blame] | 385 | *p++ = quote; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 386 | *p = '\0'; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 387 | _PyString_Resize( |
| 388 | &v, (int) (p - ((PyStringObject *)v)->ob_sval)); |
Guido van Rossum | 2a9096b | 1990-10-21 22:15:08 +0000 | [diff] [blame] | 389 | return v; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 390 | } |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 391 | } |
| 392 | |
| 393 | static int |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame] | 394 | string_length(PyStringObject *a) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 395 | { |
| 396 | return a->ob_size; |
| 397 | } |
| 398 | |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 399 | static PyObject * |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame] | 400 | string_concat(register PyStringObject *a, register PyObject *bb) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 401 | { |
| 402 | register unsigned int size; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 403 | register PyStringObject *op; |
| 404 | if (!PyString_Check(bb)) { |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 405 | if (PyUnicode_Check(bb)) |
| 406 | return PyUnicode_Concat((PyObject *)a, bb); |
Fred Drake | b6a9ada | 2000-06-01 03:12:13 +0000 | [diff] [blame] | 407 | PyErr_Format(PyExc_TypeError, |
| 408 | "cannot add type \"%.200s\" to string", |
| 409 | bb->ob_type->tp_name); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 410 | return NULL; |
| 411 | } |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 412 | #define b ((PyStringObject *)bb) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 413 | /* Optimize cases with empty left or right operand */ |
| 414 | if (a->ob_size == 0) { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 415 | Py_INCREF(bb); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 416 | return bb; |
| 417 | } |
| 418 | if (b->ob_size == 0) { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 419 | Py_INCREF(a); |
| 420 | return (PyObject *)a; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 421 | } |
| 422 | size = a->ob_size + b->ob_size; |
Guido van Rossum | b18618d | 2000-05-03 23:44:39 +0000 | [diff] [blame] | 423 | /* PyObject_NewVar is inlined */ |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 424 | op = (PyStringObject *) |
Guido van Rossum | b18618d | 2000-05-03 23:44:39 +0000 | [diff] [blame] | 425 | PyObject_MALLOC(sizeof(PyStringObject) + size * sizeof(char)); |
Guido van Rossum | 2a9096b | 1990-10-21 22:15:08 +0000 | [diff] [blame] | 426 | if (op == NULL) |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 427 | return PyErr_NoMemory(); |
Guido van Rossum | b18618d | 2000-05-03 23:44:39 +0000 | [diff] [blame] | 428 | PyObject_INIT_VAR(op, &PyString_Type, size); |
Sjoerd Mullender | 3bb8a05 | 1993-10-22 12:04:32 +0000 | [diff] [blame] | 429 | #ifdef CACHE_HASH |
| 430 | op->ob_shash = -1; |
| 431 | #endif |
Guido van Rossum | 2a61e74 | 1997-01-18 07:55:05 +0000 | [diff] [blame] | 432 | #ifdef INTERN_STRINGS |
| 433 | op->ob_sinterned = NULL; |
| 434 | #endif |
Guido van Rossum | 2a9096b | 1990-10-21 22:15:08 +0000 | [diff] [blame] | 435 | memcpy(op->ob_sval, a->ob_sval, (int) a->ob_size); |
| 436 | memcpy(op->ob_sval + a->ob_size, b->ob_sval, (int) b->ob_size); |
| 437 | op->ob_sval[size] = '\0'; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 438 | return (PyObject *) op; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 439 | #undef b |
| 440 | } |
| 441 | |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 442 | static PyObject * |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame] | 443 | string_repeat(register PyStringObject *a, register int n) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 444 | { |
| 445 | register int i; |
Guido van Rossum | 2095d24 | 1997-04-09 19:41:24 +0000 | [diff] [blame] | 446 | register int size; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 447 | register PyStringObject *op; |
Tim Peters | 8f42246 | 2000-09-09 06:13:41 +0000 | [diff] [blame] | 448 | size_t nbytes; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 449 | if (n < 0) |
| 450 | n = 0; |
Tim Peters | 8f42246 | 2000-09-09 06:13:41 +0000 | [diff] [blame] | 451 | /* watch out for overflows: the size can overflow int, |
| 452 | * and the # of bytes needed can overflow size_t |
| 453 | */ |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 454 | size = a->ob_size * n; |
Tim Peters | 8f42246 | 2000-09-09 06:13:41 +0000 | [diff] [blame] | 455 | if (n && size / n != a->ob_size) { |
| 456 | PyErr_SetString(PyExc_OverflowError, |
| 457 | "repeated string is too long"); |
| 458 | return NULL; |
| 459 | } |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 460 | if (size == a->ob_size) { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 461 | Py_INCREF(a); |
| 462 | return (PyObject *)a; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 463 | } |
Tim Peters | 8f42246 | 2000-09-09 06:13:41 +0000 | [diff] [blame] | 464 | nbytes = size * sizeof(char); |
| 465 | if (nbytes / sizeof(char) != (size_t)size || |
| 466 | nbytes + sizeof(PyStringObject) <= nbytes) { |
| 467 | PyErr_SetString(PyExc_OverflowError, |
| 468 | "repeated string is too long"); |
| 469 | return NULL; |
| 470 | } |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 471 | op = (PyStringObject *) |
Tim Peters | 8f42246 | 2000-09-09 06:13:41 +0000 | [diff] [blame] | 472 | PyObject_MALLOC(sizeof(PyStringObject) + nbytes); |
Guido van Rossum | 2a9096b | 1990-10-21 22:15:08 +0000 | [diff] [blame] | 473 | if (op == NULL) |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 474 | return PyErr_NoMemory(); |
Guido van Rossum | b18618d | 2000-05-03 23:44:39 +0000 | [diff] [blame] | 475 | PyObject_INIT_VAR(op, &PyString_Type, size); |
Sjoerd Mullender | 3bb8a05 | 1993-10-22 12:04:32 +0000 | [diff] [blame] | 476 | #ifdef CACHE_HASH |
| 477 | op->ob_shash = -1; |
| 478 | #endif |
Guido van Rossum | 2a61e74 | 1997-01-18 07:55:05 +0000 | [diff] [blame] | 479 | #ifdef INTERN_STRINGS |
| 480 | op->ob_sinterned = NULL; |
| 481 | #endif |
Guido van Rossum | 2a9096b | 1990-10-21 22:15:08 +0000 | [diff] [blame] | 482 | for (i = 0; i < size; i += a->ob_size) |
| 483 | memcpy(op->ob_sval+i, a->ob_sval, (int) a->ob_size); |
| 484 | op->ob_sval[size] = '\0'; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 485 | return (PyObject *) op; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 486 | } |
| 487 | |
| 488 | /* String slice a[i:j] consists of characters a[i] ... a[j-1] */ |
| 489 | |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 490 | static PyObject * |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame] | 491 | string_slice(register PyStringObject *a, register int i, register int j) |
| 492 | /* j -- may be negative! */ |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 493 | { |
| 494 | if (i < 0) |
| 495 | i = 0; |
| 496 | if (j < 0) |
| 497 | j = 0; /* Avoid signed/unsigned bug in next line */ |
| 498 | if (j > a->ob_size) |
| 499 | j = a->ob_size; |
| 500 | if (i == 0 && j == a->ob_size) { /* It's the same as a */ |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 501 | Py_INCREF(a); |
| 502 | return (PyObject *)a; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 503 | } |
| 504 | if (j < i) |
| 505 | j = i; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 506 | return PyString_FromStringAndSize(a->ob_sval + i, (int) (j-i)); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 507 | } |
| 508 | |
Guido van Rossum | 9284a57 | 2000-03-07 15:53:43 +0000 | [diff] [blame] | 509 | static int |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame] | 510 | string_contains(PyObject *a, PyObject *el) |
Guido van Rossum | 9284a57 | 2000-03-07 15:53:43 +0000 | [diff] [blame] | 511 | { |
| 512 | register char *s, *end; |
| 513 | register char c; |
Guido van Rossum | 90daa87 | 2000-04-10 13:47:21 +0000 | [diff] [blame] | 514 | if (PyUnicode_Check(el)) |
Guido van Rossum | 96a45ad | 2000-03-13 15:56:08 +0000 | [diff] [blame] | 515 | return PyUnicode_Contains(a, el); |
Guido van Rossum | 90daa87 | 2000-04-10 13:47:21 +0000 | [diff] [blame] | 516 | if (!PyString_Check(el) || PyString_Size(el) != 1) { |
Guido van Rossum | 9284a57 | 2000-03-07 15:53:43 +0000 | [diff] [blame] | 517 | PyErr_SetString(PyExc_TypeError, |
Andrew M. Kuchling | cb95a14 | 2000-06-09 14:04:53 +0000 | [diff] [blame] | 518 | "'in <string>' requires character as left operand"); |
Guido van Rossum | 9284a57 | 2000-03-07 15:53:43 +0000 | [diff] [blame] | 519 | return -1; |
| 520 | } |
| 521 | c = PyString_AsString(el)[0]; |
| 522 | s = PyString_AsString(a); |
| 523 | end = s + PyString_Size(a); |
| 524 | while (s < end) { |
| 525 | if (c == *s++) |
| 526 | return 1; |
| 527 | } |
| 528 | return 0; |
| 529 | } |
| 530 | |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 531 | static PyObject * |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame] | 532 | string_item(PyStringObject *a, register int i) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 533 | { |
Guido van Rossum | daa8bb3 | 1991-04-04 10:48:33 +0000 | [diff] [blame] | 534 | int c; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 535 | PyObject *v; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 536 | if (i < 0 || i >= a->ob_size) { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 537 | PyErr_SetString(PyExc_IndexError, "string index out of range"); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 538 | return NULL; |
| 539 | } |
Guido van Rossum | daa8bb3 | 1991-04-04 10:48:33 +0000 | [diff] [blame] | 540 | c = a->ob_sval[i] & UCHAR_MAX; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 541 | v = (PyObject *) characters[c]; |
Sjoerd Mullender | 3bb8a05 | 1993-10-22 12:04:32 +0000 | [diff] [blame] | 542 | #ifdef COUNT_ALLOCS |
| 543 | if (v != NULL) |
| 544 | one_strings++; |
| 545 | #endif |
Guido van Rossum | daa8bb3 | 1991-04-04 10:48:33 +0000 | [diff] [blame] | 546 | if (v == NULL) { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 547 | v = PyString_FromStringAndSize((char *)NULL, 1); |
Guido van Rossum | daa8bb3 | 1991-04-04 10:48:33 +0000 | [diff] [blame] | 548 | if (v == NULL) |
| 549 | return NULL; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 550 | characters[c] = (PyStringObject *) v; |
| 551 | ((PyStringObject *)v)->ob_sval[0] = c; |
Guido van Rossum | daa8bb3 | 1991-04-04 10:48:33 +0000 | [diff] [blame] | 552 | } |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 553 | Py_INCREF(v); |
Guido van Rossum | daa8bb3 | 1991-04-04 10:48:33 +0000 | [diff] [blame] | 554 | return v; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 555 | } |
| 556 | |
| 557 | static int |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame] | 558 | string_compare(PyStringObject *a, PyStringObject *b) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 559 | { |
Guido van Rossum | 253919f | 1991-02-13 23:18:39 +0000 | [diff] [blame] | 560 | int len_a = a->ob_size, len_b = b->ob_size; |
| 561 | int min_len = (len_a < len_b) ? len_a : len_b; |
Sjoerd Mullender | 3bb8a05 | 1993-10-22 12:04:32 +0000 | [diff] [blame] | 562 | int cmp; |
| 563 | if (min_len > 0) { |
Guido van Rossum | fde7a75 | 1996-10-23 14:19:40 +0000 | [diff] [blame] | 564 | cmp = Py_CHARMASK(*a->ob_sval) - Py_CHARMASK(*b->ob_sval); |
Sjoerd Mullender | 3bb8a05 | 1993-10-22 12:04:32 +0000 | [diff] [blame] | 565 | if (cmp == 0) |
| 566 | cmp = memcmp(a->ob_sval, b->ob_sval, min_len); |
| 567 | if (cmp != 0) |
| 568 | return cmp; |
| 569 | } |
Guido van Rossum | 253919f | 1991-02-13 23:18:39 +0000 | [diff] [blame] | 570 | return (len_a < len_b) ? -1 : (len_a > len_b) ? 1 : 0; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 571 | } |
| 572 | |
Guido van Rossum | 9bfef44 | 1993-03-29 10:43:31 +0000 | [diff] [blame] | 573 | static long |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame] | 574 | string_hash(PyStringObject *a) |
Guido van Rossum | 9bfef44 | 1993-03-29 10:43:31 +0000 | [diff] [blame] | 575 | { |
Sjoerd Mullender | 3bb8a05 | 1993-10-22 12:04:32 +0000 | [diff] [blame] | 576 | register int len; |
| 577 | register unsigned char *p; |
| 578 | register long x; |
| 579 | |
| 580 | #ifdef CACHE_HASH |
| 581 | if (a->ob_shash != -1) |
| 582 | return a->ob_shash; |
Guido van Rossum | 36b9f79 | 1997-02-14 16:29:22 +0000 | [diff] [blame] | 583 | #ifdef INTERN_STRINGS |
| 584 | if (a->ob_sinterned != NULL) |
| 585 | return (a->ob_shash = |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 586 | ((PyStringObject *)(a->ob_sinterned))->ob_shash); |
Guido van Rossum | 36b9f79 | 1997-02-14 16:29:22 +0000 | [diff] [blame] | 587 | #endif |
Sjoerd Mullender | 3bb8a05 | 1993-10-22 12:04:32 +0000 | [diff] [blame] | 588 | #endif |
| 589 | len = a->ob_size; |
| 590 | p = (unsigned char *) a->ob_sval; |
| 591 | x = *p << 7; |
Guido van Rossum | 9bfef44 | 1993-03-29 10:43:31 +0000 | [diff] [blame] | 592 | while (--len >= 0) |
Guido van Rossum | eddcb3b | 1996-09-11 20:22:48 +0000 | [diff] [blame] | 593 | x = (1000003*x) ^ *p++; |
Guido van Rossum | 9bfef44 | 1993-03-29 10:43:31 +0000 | [diff] [blame] | 594 | x ^= a->ob_size; |
| 595 | if (x == -1) |
| 596 | x = -2; |
Sjoerd Mullender | 3bb8a05 | 1993-10-22 12:04:32 +0000 | [diff] [blame] | 597 | #ifdef CACHE_HASH |
| 598 | a->ob_shash = x; |
| 599 | #endif |
Guido van Rossum | 9bfef44 | 1993-03-29 10:43:31 +0000 | [diff] [blame] | 600 | return x; |
| 601 | } |
| 602 | |
Guido van Rossum | fdf95dd | 1997-05-05 22:15:02 +0000 | [diff] [blame] | 603 | static int |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame] | 604 | string_buffer_getreadbuf(PyStringObject *self, int index, const void **ptr) |
Guido van Rossum | fdf95dd | 1997-05-05 22:15:02 +0000 | [diff] [blame] | 605 | { |
| 606 | if ( index != 0 ) { |
Guido van Rossum | 045e688 | 1997-09-08 18:30:11 +0000 | [diff] [blame] | 607 | PyErr_SetString(PyExc_SystemError, |
Guido van Rossum | 1db7070 | 1998-10-08 02:18:52 +0000 | [diff] [blame] | 608 | "accessing non-existent string segment"); |
Guido van Rossum | fdf95dd | 1997-05-05 22:15:02 +0000 | [diff] [blame] | 609 | return -1; |
| 610 | } |
| 611 | *ptr = (void *)self->ob_sval; |
| 612 | return self->ob_size; |
| 613 | } |
| 614 | |
| 615 | static int |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame] | 616 | string_buffer_getwritebuf(PyStringObject *self, int index, const void **ptr) |
Guido van Rossum | fdf95dd | 1997-05-05 22:15:02 +0000 | [diff] [blame] | 617 | { |
Guido van Rossum | 045e688 | 1997-09-08 18:30:11 +0000 | [diff] [blame] | 618 | PyErr_SetString(PyExc_TypeError, |
Guido van Rossum | 07d7800 | 1998-10-01 15:59:48 +0000 | [diff] [blame] | 619 | "Cannot use string as modifiable buffer"); |
Guido van Rossum | fdf95dd | 1997-05-05 22:15:02 +0000 | [diff] [blame] | 620 | return -1; |
| 621 | } |
| 622 | |
| 623 | static int |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame] | 624 | string_buffer_getsegcount(PyStringObject *self, int *lenp) |
Guido van Rossum | fdf95dd | 1997-05-05 22:15:02 +0000 | [diff] [blame] | 625 | { |
| 626 | if ( lenp ) |
| 627 | *lenp = self->ob_size; |
| 628 | return 1; |
| 629 | } |
| 630 | |
Guido van Rossum | 1db7070 | 1998-10-08 02:18:52 +0000 | [diff] [blame] | 631 | static int |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame] | 632 | string_buffer_getcharbuf(PyStringObject *self, int index, const char **ptr) |
Guido van Rossum | 1db7070 | 1998-10-08 02:18:52 +0000 | [diff] [blame] | 633 | { |
| 634 | if ( index != 0 ) { |
| 635 | PyErr_SetString(PyExc_SystemError, |
| 636 | "accessing non-existent string segment"); |
| 637 | return -1; |
| 638 | } |
| 639 | *ptr = self->ob_sval; |
| 640 | return self->ob_size; |
| 641 | } |
| 642 | |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 643 | static PySequenceMethods string_as_sequence = { |
Guido van Rossum | 013142a | 1994-08-30 08:19:36 +0000 | [diff] [blame] | 644 | (inquiry)string_length, /*sq_length*/ |
| 645 | (binaryfunc)string_concat, /*sq_concat*/ |
| 646 | (intargfunc)string_repeat, /*sq_repeat*/ |
| 647 | (intargfunc)string_item, /*sq_item*/ |
| 648 | (intintargfunc)string_slice, /*sq_slice*/ |
Guido van Rossum | f380e66 | 1991-06-04 19:36:32 +0000 | [diff] [blame] | 649 | 0, /*sq_ass_item*/ |
| 650 | 0, /*sq_ass_slice*/ |
Guido van Rossum | 9284a57 | 2000-03-07 15:53:43 +0000 | [diff] [blame] | 651 | (objobjproc)string_contains /*sq_contains*/ |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 652 | }; |
| 653 | |
Guido van Rossum | fdf95dd | 1997-05-05 22:15:02 +0000 | [diff] [blame] | 654 | static PyBufferProcs string_as_buffer = { |
| 655 | (getreadbufferproc)string_buffer_getreadbuf, |
| 656 | (getwritebufferproc)string_buffer_getwritebuf, |
| 657 | (getsegcountproc)string_buffer_getsegcount, |
Guido van Rossum | 1db7070 | 1998-10-08 02:18:52 +0000 | [diff] [blame] | 658 | (getcharbufferproc)string_buffer_getcharbuf, |
Guido van Rossum | fdf95dd | 1997-05-05 22:15:02 +0000 | [diff] [blame] | 659 | }; |
| 660 | |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 661 | |
| 662 | |
| 663 | #define LEFTSTRIP 0 |
| 664 | #define RIGHTSTRIP 1 |
| 665 | #define BOTHSTRIP 2 |
| 666 | |
| 667 | |
| 668 | static PyObject * |
Tim Peters | c2e7da9 | 2000-07-09 08:02:21 +0000 | [diff] [blame] | 669 | split_whitespace(const char *s, int len, int maxsplit) |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 670 | { |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 671 | int i, j, err; |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 672 | PyObject* item; |
| 673 | PyObject *list = PyList_New(0); |
| 674 | |
| 675 | if (list == NULL) |
| 676 | return NULL; |
| 677 | |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 678 | for (i = j = 0; i < len; ) { |
| 679 | while (i < len && isspace(Py_CHARMASK(s[i]))) |
| 680 | i++; |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 681 | j = i; |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 682 | while (i < len && !isspace(Py_CHARMASK(s[i]))) |
| 683 | i++; |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 684 | if (j < i) { |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 685 | if (maxsplit-- <= 0) |
| 686 | break; |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 687 | item = PyString_FromStringAndSize(s+j, (int)(i-j)); |
| 688 | if (item == NULL) |
| 689 | goto finally; |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 690 | err = PyList_Append(list, item); |
| 691 | Py_DECREF(item); |
| 692 | if (err < 0) |
| 693 | goto finally; |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 694 | while (i < len && isspace(Py_CHARMASK(s[i]))) |
| 695 | i++; |
| 696 | j = i; |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 697 | } |
| 698 | } |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 699 | if (j < len) { |
| 700 | item = PyString_FromStringAndSize(s+j, (int)(len - j)); |
| 701 | if (item == NULL) |
| 702 | goto finally; |
| 703 | err = PyList_Append(list, item); |
| 704 | Py_DECREF(item); |
| 705 | if (err < 0) |
| 706 | goto finally; |
| 707 | } |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 708 | return list; |
| 709 | finally: |
| 710 | Py_DECREF(list); |
| 711 | return NULL; |
| 712 | } |
| 713 | |
| 714 | |
| 715 | static char split__doc__[] = |
| 716 | "S.split([sep [,maxsplit]]) -> list of strings\n\ |
| 717 | \n\ |
| 718 | Return a list of the words in the string S, using sep as the\n\ |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 719 | delimiter string. If maxsplit is given, at most maxsplit\n\ |
| 720 | splits are done. If sep is not specified, any whitespace string\n\ |
| 721 | is a separator."; |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 722 | |
| 723 | static PyObject * |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame] | 724 | string_split(PyStringObject *self, PyObject *args) |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 725 | { |
| 726 | int len = PyString_GET_SIZE(self), n, i, j, err; |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 727 | int maxsplit = -1; |
| 728 | const char *s = PyString_AS_STRING(self), *sub; |
| 729 | PyObject *list, *item, *subobj = Py_None; |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 730 | |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 731 | if (!PyArg_ParseTuple(args, "|Oi:split", &subobj, &maxsplit)) |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 732 | return NULL; |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 733 | if (maxsplit < 0) |
| 734 | maxsplit = INT_MAX; |
| 735 | if (subobj == Py_None) |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 736 | return split_whitespace(s, len, maxsplit); |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 737 | if (PyString_Check(subobj)) { |
| 738 | sub = PyString_AS_STRING(subobj); |
| 739 | n = PyString_GET_SIZE(subobj); |
| 740 | } |
| 741 | else if (PyUnicode_Check(subobj)) |
| 742 | return PyUnicode_Split((PyObject *)self, subobj, maxsplit); |
| 743 | else if (PyObject_AsCharBuffer(subobj, &sub, &n)) |
| 744 | return NULL; |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 745 | if (n == 0) { |
| 746 | PyErr_SetString(PyExc_ValueError, "empty separator"); |
| 747 | return NULL; |
| 748 | } |
| 749 | |
| 750 | list = PyList_New(0); |
| 751 | if (list == NULL) |
| 752 | return NULL; |
| 753 | |
| 754 | i = j = 0; |
| 755 | while (i+n <= len) { |
Fred Drake | 396f6e0 | 2000-06-20 15:47:54 +0000 | [diff] [blame] | 756 | if (s[i] == sub[0] && memcmp(s+i, sub, n) == 0) { |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 757 | if (maxsplit-- <= 0) |
| 758 | break; |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 759 | item = PyString_FromStringAndSize(s+j, (int)(i-j)); |
| 760 | if (item == NULL) |
| 761 | goto fail; |
| 762 | err = PyList_Append(list, item); |
| 763 | Py_DECREF(item); |
| 764 | if (err < 0) |
| 765 | goto fail; |
| 766 | i = j = i + n; |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 767 | } |
| 768 | else |
| 769 | i++; |
| 770 | } |
| 771 | item = PyString_FromStringAndSize(s+j, (int)(len-j)); |
| 772 | if (item == NULL) |
| 773 | goto fail; |
| 774 | err = PyList_Append(list, item); |
| 775 | Py_DECREF(item); |
| 776 | if (err < 0) |
| 777 | goto fail; |
| 778 | |
| 779 | return list; |
| 780 | |
| 781 | fail: |
| 782 | Py_DECREF(list); |
| 783 | return NULL; |
| 784 | } |
| 785 | |
| 786 | |
| 787 | static char join__doc__[] = |
| 788 | "S.join(sequence) -> string\n\ |
| 789 | \n\ |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 790 | Return a string which is the concatenation of the strings in the\n\ |
| 791 | sequence. The separator between elements is S."; |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 792 | |
| 793 | static PyObject * |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame] | 794 | string_join(PyStringObject *self, PyObject *args) |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 795 | { |
| 796 | char *sep = PyString_AS_STRING(self); |
| 797 | int seplen = PyString_GET_SIZE(self); |
| 798 | PyObject *res = NULL; |
| 799 | int reslen = 0; |
| 800 | char *p; |
| 801 | int seqlen = 0; |
| 802 | int sz = 100; |
Jeremy Hylton | 88887aa | 2000-07-11 20:55:38 +0000 | [diff] [blame] | 803 | int i, slen, sz_incr; |
Jeremy Hylton | 194e43e | 2000-07-10 21:30:28 +0000 | [diff] [blame] | 804 | PyObject *orig, *seq, *item; |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 805 | |
Jeremy Hylton | 194e43e | 2000-07-10 21:30:28 +0000 | [diff] [blame] | 806 | if (!PyArg_ParseTuple(args, "O:join", &orig)) |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 807 | return NULL; |
| 808 | |
Barry Warsaw | 771d067 | 2000-07-11 04:58:12 +0000 | [diff] [blame] | 809 | if (!(seq = PySequence_Fast(orig, ""))) { |
Jeremy Hylton | 194e43e | 2000-07-10 21:30:28 +0000 | [diff] [blame] | 810 | if (PyErr_ExceptionMatches(PyExc_TypeError)) |
| 811 | PyErr_Format(PyExc_TypeError, |
| 812 | "sequence expected, %.80s found", |
| 813 | orig->ob_type->tp_name); |
| 814 | return NULL; |
| 815 | } |
Barry Warsaw | 771d067 | 2000-07-11 04:58:12 +0000 | [diff] [blame] | 816 | /* From here on out, errors go through finally: for proper |
| 817 | * reference count manipulations. |
| 818 | */ |
Jeremy Hylton | 03657cf | 2000-07-12 13:05:33 +0000 | [diff] [blame] | 819 | seqlen = PySequence_Size(seq); |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 820 | if (seqlen == 1) { |
Jeremy Hylton | 194e43e | 2000-07-10 21:30:28 +0000 | [diff] [blame] | 821 | item = PySequence_Fast_GET_ITEM(seq, 0); |
| 822 | Py_INCREF(item); |
Barry Warsaw | 771d067 | 2000-07-11 04:58:12 +0000 | [diff] [blame] | 823 | Py_DECREF(seq); |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 824 | return item; |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 825 | } |
Jeremy Hylton | 194e43e | 2000-07-10 21:30:28 +0000 | [diff] [blame] | 826 | |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 827 | if (!(res = PyString_FromStringAndSize((char*)NULL, sz))) |
Barry Warsaw | 771d067 | 2000-07-11 04:58:12 +0000 | [diff] [blame] | 828 | goto finally; |
| 829 | |
Jeremy Hylton | 88887aa | 2000-07-11 20:55:38 +0000 | [diff] [blame] | 830 | p = PyString_AS_STRING(res); |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 831 | |
Jeremy Hylton | 194e43e | 2000-07-10 21:30:28 +0000 | [diff] [blame] | 832 | for (i = 0; i < seqlen; i++) { |
| 833 | item = PySequence_Fast_GET_ITEM(seq, i); |
| 834 | if (!PyString_Check(item)){ |
| 835 | if (PyUnicode_Check(item)) { |
| 836 | Py_DECREF(res); |
Barry Warsaw | 771d067 | 2000-07-11 04:58:12 +0000 | [diff] [blame] | 837 | Py_DECREF(seq); |
Guido van Rossum | 2ccda8a | 2000-11-27 18:46:26 +0000 | [diff] [blame] | 838 | return PyUnicode_Join((PyObject *)self, orig); |
Jeremy Hylton | 194e43e | 2000-07-10 21:30:28 +0000 | [diff] [blame] | 839 | } |
| 840 | PyErr_Format(PyExc_TypeError, |
Jeremy Hylton | 88887aa | 2000-07-11 20:55:38 +0000 | [diff] [blame] | 841 | "sequence item %i: expected string," |
| 842 | " %.80s found", |
Jeremy Hylton | 194e43e | 2000-07-10 21:30:28 +0000 | [diff] [blame] | 843 | i, item->ob_type->tp_name); |
Jeremy Hylton | 194e43e | 2000-07-10 21:30:28 +0000 | [diff] [blame] | 844 | goto finally; |
| 845 | } |
| 846 | slen = PyString_GET_SIZE(item); |
| 847 | while (reslen + slen + seplen >= sz) { |
Jeremy Hylton | 88887aa | 2000-07-11 20:55:38 +0000 | [diff] [blame] | 848 | /* at least double the size of the string */ |
| 849 | sz_incr = slen + seplen > sz ? slen + seplen : sz; |
| 850 | if (_PyString_Resize(&res, sz + sz_incr)) { |
Barry Warsaw | bf32583 | 2000-03-06 14:52:18 +0000 | [diff] [blame] | 851 | goto finally; |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 852 | } |
Jeremy Hylton | 88887aa | 2000-07-11 20:55:38 +0000 | [diff] [blame] | 853 | sz += sz_incr; |
| 854 | p = PyString_AS_STRING(res) + reslen; |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 855 | } |
Jeremy Hylton | 194e43e | 2000-07-10 21:30:28 +0000 | [diff] [blame] | 856 | if (i > 0) { |
| 857 | memcpy(p, sep, seplen); |
| 858 | p += seplen; |
| 859 | reslen += seplen; |
| 860 | } |
| 861 | memcpy(p, PyString_AS_STRING(item), slen); |
Jeremy Hylton | 194e43e | 2000-07-10 21:30:28 +0000 | [diff] [blame] | 862 | p += slen; |
| 863 | reslen += slen; |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 864 | } |
| 865 | if (_PyString_Resize(&res, reslen)) |
| 866 | goto finally; |
Jeremy Hylton | 4904829 | 2000-07-11 03:28:17 +0000 | [diff] [blame] | 867 | Py_DECREF(seq); |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 868 | return res; |
| 869 | |
| 870 | finally: |
Jeremy Hylton | 4904829 | 2000-07-11 03:28:17 +0000 | [diff] [blame] | 871 | Py_DECREF(seq); |
Barry Warsaw | 771d067 | 2000-07-11 04:58:12 +0000 | [diff] [blame] | 872 | Py_XDECREF(res); |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 873 | return NULL; |
| 874 | } |
| 875 | |
| 876 | |
| 877 | |
| 878 | static long |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame] | 879 | string_find_internal(PyStringObject *self, PyObject *args, int dir) |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 880 | { |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 881 | const char *s = PyString_AS_STRING(self), *sub; |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 882 | int len = PyString_GET_SIZE(self); |
| 883 | int n, i = 0, last = INT_MAX; |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 884 | PyObject *subobj; |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 885 | |
Guido van Rossum | c682140 | 2000-05-08 14:08:05 +0000 | [diff] [blame] | 886 | if (!PyArg_ParseTuple(args, "O|O&O&:find/rfind/index/rindex", |
| 887 | &subobj, _PyEval_SliceIndex, &i, _PyEval_SliceIndex, &last)) |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 888 | return -2; |
| 889 | if (PyString_Check(subobj)) { |
| 890 | sub = PyString_AS_STRING(subobj); |
| 891 | n = PyString_GET_SIZE(subobj); |
| 892 | } |
| 893 | else if (PyUnicode_Check(subobj)) |
| 894 | return PyUnicode_Find((PyObject *)self, subobj, i, last, 1); |
| 895 | else if (PyObject_AsCharBuffer(subobj, &sub, &n)) |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 896 | return -2; |
| 897 | |
| 898 | if (last > len) |
| 899 | last = len; |
| 900 | if (last < 0) |
| 901 | last += len; |
| 902 | if (last < 0) |
| 903 | last = 0; |
| 904 | if (i < 0) |
| 905 | i += len; |
| 906 | if (i < 0) |
| 907 | i = 0; |
| 908 | |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 909 | if (dir > 0) { |
| 910 | if (n == 0 && i <= last) |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 911 | return (long)i; |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 912 | last -= n; |
| 913 | for (; i <= last; ++i) |
Fred Drake | 396f6e0 | 2000-06-20 15:47:54 +0000 | [diff] [blame] | 914 | if (s[i] == sub[0] && memcmp(&s[i], sub, n) == 0) |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 915 | return (long)i; |
| 916 | } |
| 917 | else { |
| 918 | int j; |
| 919 | |
| 920 | if (n == 0 && i <= last) |
| 921 | return (long)last; |
| 922 | for (j = last-n; j >= i; --j) |
Fred Drake | 396f6e0 | 2000-06-20 15:47:54 +0000 | [diff] [blame] | 923 | if (s[j] == sub[0] && memcmp(&s[j], sub, n) == 0) |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 924 | return (long)j; |
| 925 | } |
| 926 | |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 927 | return -1; |
| 928 | } |
| 929 | |
| 930 | |
| 931 | static char find__doc__[] = |
| 932 | "S.find(sub [,start [,end]]) -> int\n\ |
| 933 | \n\ |
| 934 | Return the lowest index in S where substring sub is found,\n\ |
| 935 | such that sub is contained within s[start,end]. Optional\n\ |
| 936 | arguments start and end are interpreted as in slice notation.\n\ |
| 937 | \n\ |
| 938 | Return -1 on failure."; |
| 939 | |
| 940 | static PyObject * |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame] | 941 | string_find(PyStringObject *self, PyObject *args) |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 942 | { |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 943 | long result = string_find_internal(self, args, +1); |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 944 | if (result == -2) |
| 945 | return NULL; |
| 946 | return PyInt_FromLong(result); |
| 947 | } |
| 948 | |
| 949 | |
| 950 | static char index__doc__[] = |
| 951 | "S.index(sub [,start [,end]]) -> int\n\ |
| 952 | \n\ |
| 953 | Like S.find() but raise ValueError when the substring is not found."; |
| 954 | |
| 955 | static PyObject * |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame] | 956 | string_index(PyStringObject *self, PyObject *args) |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 957 | { |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 958 | long result = string_find_internal(self, args, +1); |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 959 | if (result == -2) |
| 960 | return NULL; |
| 961 | if (result == -1) { |
| 962 | PyErr_SetString(PyExc_ValueError, |
| 963 | "substring not found in string.index"); |
| 964 | return NULL; |
| 965 | } |
| 966 | return PyInt_FromLong(result); |
| 967 | } |
| 968 | |
| 969 | |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 970 | static char rfind__doc__[] = |
| 971 | "S.rfind(sub [,start [,end]]) -> int\n\ |
| 972 | \n\ |
| 973 | Return the highest index in S where substring sub is found,\n\ |
| 974 | such that sub is contained within s[start,end]. Optional\n\ |
| 975 | arguments start and end are interpreted as in slice notation.\n\ |
| 976 | \n\ |
| 977 | Return -1 on failure."; |
| 978 | |
| 979 | static PyObject * |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame] | 980 | string_rfind(PyStringObject *self, PyObject *args) |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 981 | { |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 982 | long result = string_find_internal(self, args, -1); |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 983 | if (result == -2) |
| 984 | return NULL; |
| 985 | return PyInt_FromLong(result); |
| 986 | } |
| 987 | |
| 988 | |
| 989 | static char rindex__doc__[] = |
| 990 | "S.rindex(sub [,start [,end]]) -> int\n\ |
| 991 | \n\ |
| 992 | Like S.rfind() but raise ValueError when the substring is not found."; |
| 993 | |
| 994 | static PyObject * |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame] | 995 | string_rindex(PyStringObject *self, PyObject *args) |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 996 | { |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 997 | long result = string_find_internal(self, args, -1); |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 998 | if (result == -2) |
| 999 | return NULL; |
| 1000 | if (result == -1) { |
| 1001 | PyErr_SetString(PyExc_ValueError, |
| 1002 | "substring not found in string.rindex"); |
| 1003 | return NULL; |
| 1004 | } |
| 1005 | return PyInt_FromLong(result); |
| 1006 | } |
| 1007 | |
| 1008 | |
| 1009 | static PyObject * |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame] | 1010 | do_strip(PyStringObject *self, PyObject *args, int striptype) |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1011 | { |
| 1012 | char *s = PyString_AS_STRING(self); |
| 1013 | int len = PyString_GET_SIZE(self), i, j; |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1014 | |
Guido van Rossum | 43713e5 | 2000-02-29 13:59:29 +0000 | [diff] [blame] | 1015 | if (!PyArg_ParseTuple(args, ":strip")) |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1016 | return NULL; |
| 1017 | |
| 1018 | i = 0; |
| 1019 | if (striptype != RIGHTSTRIP) { |
| 1020 | while (i < len && isspace(Py_CHARMASK(s[i]))) { |
| 1021 | i++; |
| 1022 | } |
| 1023 | } |
| 1024 | |
| 1025 | j = len; |
| 1026 | if (striptype != LEFTSTRIP) { |
| 1027 | do { |
| 1028 | j--; |
| 1029 | } while (j >= i && isspace(Py_CHARMASK(s[j]))); |
| 1030 | j++; |
| 1031 | } |
| 1032 | |
| 1033 | if (i == 0 && j == len) { |
| 1034 | Py_INCREF(self); |
| 1035 | return (PyObject*)self; |
| 1036 | } |
| 1037 | else |
| 1038 | return PyString_FromStringAndSize(s+i, j-i); |
| 1039 | } |
| 1040 | |
| 1041 | |
| 1042 | static char strip__doc__[] = |
| 1043 | "S.strip() -> string\n\ |
| 1044 | \n\ |
| 1045 | Return a copy of the string S with leading and trailing\n\ |
| 1046 | whitespace removed."; |
| 1047 | |
| 1048 | static PyObject * |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame] | 1049 | string_strip(PyStringObject *self, PyObject *args) |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1050 | { |
| 1051 | return do_strip(self, args, BOTHSTRIP); |
| 1052 | } |
| 1053 | |
| 1054 | |
| 1055 | static char lstrip__doc__[] = |
| 1056 | "S.lstrip() -> string\n\ |
| 1057 | \n\ |
| 1058 | Return a copy of the string S with leading whitespace removed."; |
| 1059 | |
| 1060 | static PyObject * |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame] | 1061 | string_lstrip(PyStringObject *self, PyObject *args) |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1062 | { |
| 1063 | return do_strip(self, args, LEFTSTRIP); |
| 1064 | } |
| 1065 | |
| 1066 | |
| 1067 | static char rstrip__doc__[] = |
| 1068 | "S.rstrip() -> string\n\ |
| 1069 | \n\ |
| 1070 | Return a copy of the string S with trailing whitespace removed."; |
| 1071 | |
| 1072 | static PyObject * |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame] | 1073 | string_rstrip(PyStringObject *self, PyObject *args) |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1074 | { |
| 1075 | return do_strip(self, args, RIGHTSTRIP); |
| 1076 | } |
| 1077 | |
| 1078 | |
| 1079 | static char lower__doc__[] = |
| 1080 | "S.lower() -> string\n\ |
| 1081 | \n\ |
| 1082 | Return a copy of the string S converted to lowercase."; |
| 1083 | |
| 1084 | static PyObject * |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame] | 1085 | string_lower(PyStringObject *self, PyObject *args) |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1086 | { |
| 1087 | char *s = PyString_AS_STRING(self), *s_new; |
| 1088 | int i, n = PyString_GET_SIZE(self); |
| 1089 | PyObject *new; |
| 1090 | |
Guido van Rossum | 43713e5 | 2000-02-29 13:59:29 +0000 | [diff] [blame] | 1091 | if (!PyArg_ParseTuple(args, ":lower")) |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1092 | return NULL; |
| 1093 | new = PyString_FromStringAndSize(NULL, n); |
| 1094 | if (new == NULL) |
| 1095 | return NULL; |
| 1096 | s_new = PyString_AsString(new); |
| 1097 | for (i = 0; i < n; i++) { |
| 1098 | int c = Py_CHARMASK(*s++); |
| 1099 | if (isupper(c)) { |
| 1100 | *s_new = tolower(c); |
| 1101 | } else |
| 1102 | *s_new = c; |
| 1103 | s_new++; |
| 1104 | } |
| 1105 | return new; |
| 1106 | } |
| 1107 | |
| 1108 | |
| 1109 | static char upper__doc__[] = |
| 1110 | "S.upper() -> string\n\ |
| 1111 | \n\ |
| 1112 | Return a copy of the string S converted to uppercase."; |
| 1113 | |
| 1114 | static PyObject * |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame] | 1115 | string_upper(PyStringObject *self, PyObject *args) |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1116 | { |
| 1117 | char *s = PyString_AS_STRING(self), *s_new; |
| 1118 | int i, n = PyString_GET_SIZE(self); |
| 1119 | PyObject *new; |
| 1120 | |
Guido van Rossum | 43713e5 | 2000-02-29 13:59:29 +0000 | [diff] [blame] | 1121 | if (!PyArg_ParseTuple(args, ":upper")) |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1122 | return NULL; |
| 1123 | new = PyString_FromStringAndSize(NULL, n); |
| 1124 | if (new == NULL) |
| 1125 | return NULL; |
| 1126 | s_new = PyString_AsString(new); |
| 1127 | for (i = 0; i < n; i++) { |
| 1128 | int c = Py_CHARMASK(*s++); |
| 1129 | if (islower(c)) { |
| 1130 | *s_new = toupper(c); |
| 1131 | } else |
| 1132 | *s_new = c; |
| 1133 | s_new++; |
| 1134 | } |
| 1135 | return new; |
| 1136 | } |
| 1137 | |
| 1138 | |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 1139 | static char title__doc__[] = |
| 1140 | "S.title() -> string\n\ |
| 1141 | \n\ |
| 1142 | Return a titlecased version of S, i.e. words start with uppercase\n\ |
| 1143 | characters, all remaining cased characters have lowercase."; |
| 1144 | |
| 1145 | static PyObject* |
| 1146 | string_title(PyUnicodeObject *self, PyObject *args) |
| 1147 | { |
| 1148 | char *s = PyString_AS_STRING(self), *s_new; |
| 1149 | int i, n = PyString_GET_SIZE(self); |
| 1150 | int previous_is_cased = 0; |
| 1151 | PyObject *new; |
| 1152 | |
| 1153 | if (!PyArg_ParseTuple(args, ":title")) |
| 1154 | return NULL; |
| 1155 | new = PyString_FromStringAndSize(NULL, n); |
| 1156 | if (new == NULL) |
| 1157 | return NULL; |
| 1158 | s_new = PyString_AsString(new); |
| 1159 | for (i = 0; i < n; i++) { |
| 1160 | int c = Py_CHARMASK(*s++); |
| 1161 | if (islower(c)) { |
| 1162 | if (!previous_is_cased) |
| 1163 | c = toupper(c); |
| 1164 | previous_is_cased = 1; |
| 1165 | } else if (isupper(c)) { |
| 1166 | if (previous_is_cased) |
| 1167 | c = tolower(c); |
| 1168 | previous_is_cased = 1; |
| 1169 | } else |
| 1170 | previous_is_cased = 0; |
| 1171 | *s_new++ = c; |
| 1172 | } |
| 1173 | return new; |
| 1174 | } |
| 1175 | |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1176 | static char capitalize__doc__[] = |
| 1177 | "S.capitalize() -> string\n\ |
| 1178 | \n\ |
| 1179 | Return a copy of the string S with only its first character\n\ |
| 1180 | capitalized."; |
| 1181 | |
| 1182 | static PyObject * |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame] | 1183 | string_capitalize(PyStringObject *self, PyObject *args) |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1184 | { |
| 1185 | char *s = PyString_AS_STRING(self), *s_new; |
| 1186 | int i, n = PyString_GET_SIZE(self); |
| 1187 | PyObject *new; |
| 1188 | |
Guido van Rossum | 43713e5 | 2000-02-29 13:59:29 +0000 | [diff] [blame] | 1189 | if (!PyArg_ParseTuple(args, ":capitalize")) |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1190 | return NULL; |
| 1191 | new = PyString_FromStringAndSize(NULL, n); |
| 1192 | if (new == NULL) |
| 1193 | return NULL; |
| 1194 | s_new = PyString_AsString(new); |
| 1195 | if (0 < n) { |
| 1196 | int c = Py_CHARMASK(*s++); |
| 1197 | if (islower(c)) |
| 1198 | *s_new = toupper(c); |
| 1199 | else |
| 1200 | *s_new = c; |
| 1201 | s_new++; |
| 1202 | } |
| 1203 | for (i = 1; i < n; i++) { |
| 1204 | int c = Py_CHARMASK(*s++); |
| 1205 | if (isupper(c)) |
| 1206 | *s_new = tolower(c); |
| 1207 | else |
| 1208 | *s_new = c; |
| 1209 | s_new++; |
| 1210 | } |
| 1211 | return new; |
| 1212 | } |
| 1213 | |
| 1214 | |
| 1215 | static char count__doc__[] = |
| 1216 | "S.count(sub[, start[, end]]) -> int\n\ |
| 1217 | \n\ |
| 1218 | Return the number of occurrences of substring sub in string\n\ |
| 1219 | S[start:end]. Optional arguments start and end are\n\ |
| 1220 | interpreted as in slice notation."; |
| 1221 | |
| 1222 | static PyObject * |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame] | 1223 | string_count(PyStringObject *self, PyObject *args) |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1224 | { |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 1225 | const char *s = PyString_AS_STRING(self), *sub; |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1226 | int len = PyString_GET_SIZE(self), n; |
| 1227 | int i = 0, last = INT_MAX; |
| 1228 | int m, r; |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 1229 | PyObject *subobj; |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1230 | |
Guido van Rossum | c682140 | 2000-05-08 14:08:05 +0000 | [diff] [blame] | 1231 | if (!PyArg_ParseTuple(args, "O|O&O&:count", &subobj, |
| 1232 | _PyEval_SliceIndex, &i, _PyEval_SliceIndex, &last)) |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1233 | return NULL; |
Guido van Rossum | c682140 | 2000-05-08 14:08:05 +0000 | [diff] [blame] | 1234 | |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 1235 | if (PyString_Check(subobj)) { |
| 1236 | sub = PyString_AS_STRING(subobj); |
| 1237 | n = PyString_GET_SIZE(subobj); |
| 1238 | } |
| 1239 | else if (PyUnicode_Check(subobj)) |
| 1240 | return PyInt_FromLong( |
| 1241 | PyUnicode_Count((PyObject *)self, subobj, i, last)); |
| 1242 | else if (PyObject_AsCharBuffer(subobj, &sub, &n)) |
| 1243 | return NULL; |
| 1244 | |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1245 | if (last > len) |
| 1246 | last = len; |
| 1247 | if (last < 0) |
| 1248 | last += len; |
| 1249 | if (last < 0) |
| 1250 | last = 0; |
| 1251 | if (i < 0) |
| 1252 | i += len; |
| 1253 | if (i < 0) |
| 1254 | i = 0; |
| 1255 | m = last + 1 - n; |
| 1256 | if (n == 0) |
| 1257 | return PyInt_FromLong((long) (m-i)); |
| 1258 | |
| 1259 | r = 0; |
| 1260 | while (i < m) { |
| 1261 | if (!memcmp(s+i, sub, n)) { |
| 1262 | r++; |
| 1263 | i += n; |
| 1264 | } else { |
| 1265 | i++; |
| 1266 | } |
| 1267 | } |
| 1268 | return PyInt_FromLong((long) r); |
| 1269 | } |
| 1270 | |
| 1271 | |
| 1272 | static char swapcase__doc__[] = |
| 1273 | "S.swapcase() -> string\n\ |
| 1274 | \n\ |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 1275 | Return a copy of the string S with uppercase characters\n\ |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1276 | converted to lowercase and vice versa."; |
| 1277 | |
| 1278 | static PyObject * |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame] | 1279 | string_swapcase(PyStringObject *self, PyObject *args) |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1280 | { |
| 1281 | char *s = PyString_AS_STRING(self), *s_new; |
| 1282 | int i, n = PyString_GET_SIZE(self); |
| 1283 | PyObject *new; |
| 1284 | |
Guido van Rossum | 43713e5 | 2000-02-29 13:59:29 +0000 | [diff] [blame] | 1285 | if (!PyArg_ParseTuple(args, ":swapcase")) |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1286 | return NULL; |
| 1287 | new = PyString_FromStringAndSize(NULL, n); |
| 1288 | if (new == NULL) |
| 1289 | return NULL; |
| 1290 | s_new = PyString_AsString(new); |
| 1291 | for (i = 0; i < n; i++) { |
| 1292 | int c = Py_CHARMASK(*s++); |
| 1293 | if (islower(c)) { |
| 1294 | *s_new = toupper(c); |
| 1295 | } |
| 1296 | else if (isupper(c)) { |
| 1297 | *s_new = tolower(c); |
| 1298 | } |
| 1299 | else |
| 1300 | *s_new = c; |
| 1301 | s_new++; |
| 1302 | } |
| 1303 | return new; |
| 1304 | } |
| 1305 | |
| 1306 | |
| 1307 | static char translate__doc__[] = |
| 1308 | "S.translate(table [,deletechars]) -> string\n\ |
| 1309 | \n\ |
| 1310 | Return a copy of the string S, where all characters occurring\n\ |
| 1311 | in the optional argument deletechars are removed, and the\n\ |
| 1312 | remaining characters have been mapped through the given\n\ |
| 1313 | translation table, which must be a string of length 256."; |
| 1314 | |
| 1315 | static PyObject * |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame] | 1316 | string_translate(PyStringObject *self, PyObject *args) |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1317 | { |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 1318 | register char *input, *output; |
| 1319 | register const char *table; |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1320 | register int i, c, changed = 0; |
| 1321 | PyObject *input_obj = (PyObject*)self; |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 1322 | const char *table1, *output_start, *del_table=NULL; |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1323 | int inlen, tablen, dellen = 0; |
| 1324 | PyObject *result; |
| 1325 | int trans_table[256]; |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 1326 | PyObject *tableobj, *delobj = NULL; |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1327 | |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 1328 | if (!PyArg_ParseTuple(args, "O|O:translate", |
| 1329 | &tableobj, &delobj)) |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1330 | return NULL; |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 1331 | |
| 1332 | if (PyString_Check(tableobj)) { |
| 1333 | table1 = PyString_AS_STRING(tableobj); |
| 1334 | tablen = PyString_GET_SIZE(tableobj); |
| 1335 | } |
| 1336 | else if (PyUnicode_Check(tableobj)) { |
| 1337 | /* Unicode .translate() does not support the deletechars |
| 1338 | parameter; instead a mapping to None will cause characters |
| 1339 | to be deleted. */ |
| 1340 | if (delobj != NULL) { |
| 1341 | PyErr_SetString(PyExc_TypeError, |
| 1342 | "deletions are implemented differently for unicode"); |
| 1343 | return NULL; |
| 1344 | } |
| 1345 | return PyUnicode_Translate((PyObject *)self, tableobj, NULL); |
| 1346 | } |
| 1347 | else if (PyObject_AsCharBuffer(tableobj, &table1, &tablen)) |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1348 | return NULL; |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 1349 | |
| 1350 | if (delobj != NULL) { |
| 1351 | if (PyString_Check(delobj)) { |
| 1352 | del_table = PyString_AS_STRING(delobj); |
| 1353 | dellen = PyString_GET_SIZE(delobj); |
| 1354 | } |
| 1355 | else if (PyUnicode_Check(delobj)) { |
| 1356 | PyErr_SetString(PyExc_TypeError, |
| 1357 | "deletions are implemented differently for unicode"); |
| 1358 | return NULL; |
| 1359 | } |
| 1360 | else if (PyObject_AsCharBuffer(delobj, &del_table, &dellen)) |
| 1361 | return NULL; |
| 1362 | |
| 1363 | if (tablen != 256) { |
| 1364 | PyErr_SetString(PyExc_ValueError, |
| 1365 | "translation table must be 256 characters long"); |
| 1366 | return NULL; |
| 1367 | } |
| 1368 | } |
| 1369 | else { |
| 1370 | del_table = NULL; |
| 1371 | dellen = 0; |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1372 | } |
| 1373 | |
| 1374 | table = table1; |
| 1375 | inlen = PyString_Size(input_obj); |
| 1376 | result = PyString_FromStringAndSize((char *)NULL, inlen); |
| 1377 | if (result == NULL) |
| 1378 | return NULL; |
| 1379 | output_start = output = PyString_AsString(result); |
| 1380 | input = PyString_AsString(input_obj); |
| 1381 | |
| 1382 | if (dellen == 0) { |
| 1383 | /* If no deletions are required, use faster code */ |
| 1384 | for (i = inlen; --i >= 0; ) { |
| 1385 | c = Py_CHARMASK(*input++); |
| 1386 | if (Py_CHARMASK((*output++ = table[c])) != c) |
| 1387 | changed = 1; |
| 1388 | } |
| 1389 | if (changed) |
| 1390 | return result; |
| 1391 | Py_DECREF(result); |
| 1392 | Py_INCREF(input_obj); |
| 1393 | return input_obj; |
| 1394 | } |
| 1395 | |
| 1396 | for (i = 0; i < 256; i++) |
| 1397 | trans_table[i] = Py_CHARMASK(table[i]); |
| 1398 | |
| 1399 | for (i = 0; i < dellen; i++) |
| 1400 | trans_table[(int) Py_CHARMASK(del_table[i])] = -1; |
| 1401 | |
| 1402 | for (i = inlen; --i >= 0; ) { |
| 1403 | c = Py_CHARMASK(*input++); |
| 1404 | if (trans_table[c] != -1) |
| 1405 | if (Py_CHARMASK(*output++ = (char)trans_table[c]) == c) |
| 1406 | continue; |
| 1407 | changed = 1; |
| 1408 | } |
| 1409 | if (!changed) { |
| 1410 | Py_DECREF(result); |
| 1411 | Py_INCREF(input_obj); |
| 1412 | return input_obj; |
| 1413 | } |
| 1414 | /* Fix the size of the resulting string */ |
| 1415 | if (inlen > 0 &&_PyString_Resize(&result, output-output_start)) |
| 1416 | return NULL; |
| 1417 | return result; |
| 1418 | } |
| 1419 | |
| 1420 | |
| 1421 | /* What follows is used for implementing replace(). Perry Stoll. */ |
| 1422 | |
| 1423 | /* |
| 1424 | mymemfind |
| 1425 | |
| 1426 | strstr replacement for arbitrary blocks of memory. |
| 1427 | |
Barry Warsaw | 51ac580 | 2000-03-20 16:36:48 +0000 | [diff] [blame] | 1428 | Locates the first occurrence in the memory pointed to by MEM of the |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1429 | contents of memory pointed to by PAT. Returns the index into MEM if |
| 1430 | found, or -1 if not found. If len of PAT is greater than length of |
| 1431 | MEM, the function returns -1. |
| 1432 | */ |
| 1433 | static int |
Tim Peters | c2e7da9 | 2000-07-09 08:02:21 +0000 | [diff] [blame] | 1434 | mymemfind(const char *mem, int len, const char *pat, int pat_len) |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1435 | { |
| 1436 | register int ii; |
| 1437 | |
| 1438 | /* pattern can not occur in the last pat_len-1 chars */ |
| 1439 | len -= pat_len; |
| 1440 | |
| 1441 | for (ii = 0; ii <= len; ii++) { |
Fred Drake | 396f6e0 | 2000-06-20 15:47:54 +0000 | [diff] [blame] | 1442 | if (mem[ii] == pat[0] && memcmp(&mem[ii], pat, pat_len) == 0) { |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1443 | return ii; |
| 1444 | } |
| 1445 | } |
| 1446 | return -1; |
| 1447 | } |
| 1448 | |
| 1449 | /* |
| 1450 | mymemcnt |
| 1451 | |
| 1452 | Return the number of distinct times PAT is found in MEM. |
| 1453 | meaning mem=1111 and pat==11 returns 2. |
| 1454 | mem=11111 and pat==11 also return 2. |
| 1455 | */ |
| 1456 | static int |
Tim Peters | c2e7da9 | 2000-07-09 08:02:21 +0000 | [diff] [blame] | 1457 | mymemcnt(const char *mem, int len, const char *pat, int pat_len) |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1458 | { |
| 1459 | register int offset = 0; |
| 1460 | int nfound = 0; |
| 1461 | |
| 1462 | while (len >= 0) { |
| 1463 | offset = mymemfind(mem, len, pat, pat_len); |
| 1464 | if (offset == -1) |
| 1465 | break; |
| 1466 | mem += offset + pat_len; |
| 1467 | len -= offset + pat_len; |
| 1468 | nfound++; |
| 1469 | } |
| 1470 | return nfound; |
| 1471 | } |
| 1472 | |
| 1473 | /* |
| 1474 | mymemreplace |
| 1475 | |
Thomas Wouters | 7e47402 | 2000-07-16 12:04:32 +0000 | [diff] [blame] | 1476 | Return a string in which all occurrences of PAT in memory STR are |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1477 | replaced with SUB. |
| 1478 | |
Thomas Wouters | 7e47402 | 2000-07-16 12:04:32 +0000 | [diff] [blame] | 1479 | If length of PAT is less than length of STR or there are no occurrences |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1480 | of PAT in STR, then the original string is returned. Otherwise, a new |
| 1481 | string is allocated here and returned. |
| 1482 | |
| 1483 | on return, out_len is: |
| 1484 | the length of output string, or |
| 1485 | -1 if the input string is returned, or |
| 1486 | unchanged if an error occurs (no memory). |
| 1487 | |
| 1488 | return value is: |
| 1489 | the new string allocated locally, or |
| 1490 | NULL if an error occurred. |
| 1491 | */ |
| 1492 | static char * |
Tim Peters | c2e7da9 | 2000-07-09 08:02:21 +0000 | [diff] [blame] | 1493 | mymemreplace(const char *str, int len, /* input string */ |
| 1494 | const char *pat, int pat_len, /* pattern string to find */ |
| 1495 | const char *sub, int sub_len, /* substitution string */ |
| 1496 | int count, /* number of replacements */ |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame] | 1497 | int *out_len) |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1498 | { |
| 1499 | char *out_s; |
| 1500 | char *new_s; |
| 1501 | int nfound, offset, new_len; |
| 1502 | |
| 1503 | if (len == 0 || pat_len > len) |
| 1504 | goto return_same; |
| 1505 | |
| 1506 | /* find length of output string */ |
| 1507 | nfound = mymemcnt(str, len, pat, pat_len); |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 1508 | if (count < 0) |
| 1509 | count = INT_MAX; |
| 1510 | else if (nfound > count) |
| 1511 | nfound = count; |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1512 | if (nfound == 0) |
| 1513 | goto return_same; |
| 1514 | new_len = len + nfound*(sub_len - pat_len); |
| 1515 | |
Guido van Rossum | b18618d | 2000-05-03 23:44:39 +0000 | [diff] [blame] | 1516 | new_s = (char *)PyMem_MALLOC(new_len); |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1517 | if (new_s == NULL) return NULL; |
| 1518 | |
| 1519 | *out_len = new_len; |
| 1520 | out_s = new_s; |
| 1521 | |
| 1522 | while (len > 0) { |
| 1523 | /* find index of next instance of pattern */ |
| 1524 | offset = mymemfind(str, len, pat, pat_len); |
| 1525 | /* if not found, break out of loop */ |
| 1526 | if (offset == -1) break; |
| 1527 | |
| 1528 | /* copy non matching part of input string */ |
| 1529 | memcpy(new_s, str, offset); /* copy part of str before pat */ |
| 1530 | str += offset + pat_len; /* move str past pattern */ |
| 1531 | len -= offset + pat_len; /* reduce length of str remaining */ |
| 1532 | |
| 1533 | /* copy substitute into the output string */ |
| 1534 | new_s += offset; /* move new_s to dest for sub string */ |
| 1535 | memcpy(new_s, sub, sub_len); /* copy substring into new_s */ |
| 1536 | new_s += sub_len; /* offset new_s past sub string */ |
| 1537 | |
| 1538 | /* break when we've done count replacements */ |
| 1539 | if (--count == 0) break; |
| 1540 | } |
| 1541 | /* copy any remaining values into output string */ |
| 1542 | if (len > 0) |
| 1543 | memcpy(new_s, str, len); |
| 1544 | return out_s; |
| 1545 | |
| 1546 | return_same: |
| 1547 | *out_len = -1; |
Tim Peters | c2e7da9 | 2000-07-09 08:02:21 +0000 | [diff] [blame] | 1548 | return (char*)str; /* have to cast away constness here */ |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1549 | } |
| 1550 | |
| 1551 | |
| 1552 | static char replace__doc__[] = |
| 1553 | "S.replace (old, new[, maxsplit]) -> string\n\ |
| 1554 | \n\ |
| 1555 | Return a copy of string S with all occurrences of substring\n\ |
| 1556 | old replaced by new. If the optional argument maxsplit is\n\ |
| 1557 | given, only the first maxsplit occurrences are replaced."; |
| 1558 | |
| 1559 | static PyObject * |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame] | 1560 | string_replace(PyStringObject *self, PyObject *args) |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1561 | { |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 1562 | const char *str = PyString_AS_STRING(self), *sub, *repl; |
| 1563 | char *new_s; |
| 1564 | int len = PyString_GET_SIZE(self), sub_len, repl_len, out_len; |
| 1565 | int count = -1; |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1566 | PyObject *new; |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 1567 | PyObject *subobj, *replobj; |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1568 | |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 1569 | if (!PyArg_ParseTuple(args, "OO|i:replace", |
| 1570 | &subobj, &replobj, &count)) |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1571 | return NULL; |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 1572 | |
| 1573 | if (PyString_Check(subobj)) { |
| 1574 | sub = PyString_AS_STRING(subobj); |
| 1575 | sub_len = PyString_GET_SIZE(subobj); |
| 1576 | } |
| 1577 | else if (PyUnicode_Check(subobj)) |
| 1578 | return PyUnicode_Replace((PyObject *)self, |
| 1579 | subobj, replobj, count); |
| 1580 | else if (PyObject_AsCharBuffer(subobj, &sub, &sub_len)) |
| 1581 | return NULL; |
| 1582 | |
| 1583 | if (PyString_Check(replobj)) { |
| 1584 | repl = PyString_AS_STRING(replobj); |
| 1585 | repl_len = PyString_GET_SIZE(replobj); |
| 1586 | } |
| 1587 | else if (PyUnicode_Check(replobj)) |
| 1588 | return PyUnicode_Replace((PyObject *)self, |
| 1589 | subobj, replobj, count); |
| 1590 | else if (PyObject_AsCharBuffer(replobj, &repl, &repl_len)) |
| 1591 | return NULL; |
| 1592 | |
Guido van Rossum | 96a45ad | 2000-03-13 15:56:08 +0000 | [diff] [blame] | 1593 | if (sub_len <= 0) { |
Barry Warsaw | 51ac580 | 2000-03-20 16:36:48 +0000 | [diff] [blame] | 1594 | PyErr_SetString(PyExc_ValueError, "empty pattern string"); |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1595 | return NULL; |
| 1596 | } |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 1597 | new_s = mymemreplace(str,len,sub,sub_len,repl,repl_len,count,&out_len); |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1598 | if (new_s == NULL) { |
| 1599 | PyErr_NoMemory(); |
| 1600 | return NULL; |
| 1601 | } |
| 1602 | if (out_len == -1) { |
| 1603 | /* we're returning another reference to self */ |
| 1604 | new = (PyObject*)self; |
| 1605 | Py_INCREF(new); |
| 1606 | } |
| 1607 | else { |
| 1608 | new = PyString_FromStringAndSize(new_s, out_len); |
Guido van Rossum | b18618d | 2000-05-03 23:44:39 +0000 | [diff] [blame] | 1609 | PyMem_FREE(new_s); |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1610 | } |
| 1611 | return new; |
| 1612 | } |
| 1613 | |
| 1614 | |
| 1615 | static char startswith__doc__[] = |
| 1616 | "S.startswith(prefix[, start[, end]]) -> int\n\ |
| 1617 | \n\ |
| 1618 | Return 1 if S starts with the specified prefix, otherwise return 0. With\n\ |
| 1619 | optional start, test S beginning at that position. With optional end, stop\n\ |
| 1620 | comparing S at that position."; |
| 1621 | |
| 1622 | static PyObject * |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame] | 1623 | string_startswith(PyStringObject *self, PyObject *args) |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1624 | { |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 1625 | const char* str = PyString_AS_STRING(self); |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1626 | int len = PyString_GET_SIZE(self); |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 1627 | const char* prefix; |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1628 | int plen; |
| 1629 | int start = 0; |
| 1630 | int end = -1; |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 1631 | PyObject *subobj; |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1632 | |
Guido van Rossum | c682140 | 2000-05-08 14:08:05 +0000 | [diff] [blame] | 1633 | if (!PyArg_ParseTuple(args, "O|O&O&:startswith", &subobj, |
| 1634 | _PyEval_SliceIndex, &start, _PyEval_SliceIndex, &end)) |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 1635 | return NULL; |
| 1636 | if (PyString_Check(subobj)) { |
| 1637 | prefix = PyString_AS_STRING(subobj); |
| 1638 | plen = PyString_GET_SIZE(subobj); |
| 1639 | } |
| 1640 | else if (PyUnicode_Check(subobj)) |
| 1641 | return PyInt_FromLong( |
| 1642 | PyUnicode_Tailmatch((PyObject *)self, |
| 1643 | subobj, start, end, -1)); |
| 1644 | else if (PyObject_AsCharBuffer(subobj, &prefix, &plen)) |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1645 | return NULL; |
| 1646 | |
| 1647 | /* adopt Java semantics for index out of range. it is legal for |
| 1648 | * offset to be == plen, but this only returns true if prefix is |
| 1649 | * the empty string. |
| 1650 | */ |
| 1651 | if (start < 0 || start+plen > len) |
| 1652 | return PyInt_FromLong(0); |
| 1653 | |
| 1654 | if (!memcmp(str+start, prefix, plen)) { |
| 1655 | /* did the match end after the specified end? */ |
| 1656 | if (end < 0) |
| 1657 | return PyInt_FromLong(1); |
| 1658 | else if (end - start < plen) |
| 1659 | return PyInt_FromLong(0); |
| 1660 | else |
| 1661 | return PyInt_FromLong(1); |
| 1662 | } |
| 1663 | else return PyInt_FromLong(0); |
| 1664 | } |
| 1665 | |
| 1666 | |
| 1667 | static char endswith__doc__[] = |
| 1668 | "S.endswith(suffix[, start[, end]]) -> int\n\ |
| 1669 | \n\ |
| 1670 | Return 1 if S ends with the specified suffix, otherwise return 0. With\n\ |
| 1671 | optional start, test S beginning at that position. With optional end, stop\n\ |
| 1672 | comparing S at that position."; |
| 1673 | |
| 1674 | static PyObject * |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame] | 1675 | string_endswith(PyStringObject *self, PyObject *args) |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1676 | { |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 1677 | const char* str = PyString_AS_STRING(self); |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1678 | int len = PyString_GET_SIZE(self); |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 1679 | const char* suffix; |
| 1680 | int slen; |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1681 | int start = 0; |
| 1682 | int end = -1; |
| 1683 | int lower, upper; |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 1684 | PyObject *subobj; |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1685 | |
Guido van Rossum | c682140 | 2000-05-08 14:08:05 +0000 | [diff] [blame] | 1686 | if (!PyArg_ParseTuple(args, "O|O&O&:endswith", &subobj, |
| 1687 | _PyEval_SliceIndex, &start, _PyEval_SliceIndex, &end)) |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 1688 | return NULL; |
| 1689 | if (PyString_Check(subobj)) { |
| 1690 | suffix = PyString_AS_STRING(subobj); |
| 1691 | slen = PyString_GET_SIZE(subobj); |
| 1692 | } |
| 1693 | else if (PyUnicode_Check(subobj)) |
| 1694 | return PyInt_FromLong( |
| 1695 | PyUnicode_Tailmatch((PyObject *)self, |
| 1696 | subobj, start, end, +1)); |
| 1697 | else if (PyObject_AsCharBuffer(subobj, &suffix, &slen)) |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1698 | return NULL; |
| 1699 | |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 1700 | if (start < 0 || start > len || slen > len) |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1701 | return PyInt_FromLong(0); |
| 1702 | |
| 1703 | upper = (end >= 0 && end <= len) ? end : len; |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 1704 | lower = (upper - slen) > start ? (upper - slen) : start; |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1705 | |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 1706 | if (upper-lower >= slen && !memcmp(str+lower, suffix, slen)) |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1707 | return PyInt_FromLong(1); |
| 1708 | else return PyInt_FromLong(0); |
| 1709 | } |
| 1710 | |
| 1711 | |
Marc-André Lemburg | 63f3d17 | 2000-07-06 11:29:01 +0000 | [diff] [blame] | 1712 | static char encode__doc__[] = |
| 1713 | "S.encode([encoding[,errors]]) -> string\n\ |
| 1714 | \n\ |
| 1715 | Return an encoded string version of S. Default encoding is the current\n\ |
| 1716 | default string encoding. errors may be given to set a different error\n\ |
| 1717 | handling scheme. Default is 'strict' meaning that encoding errors raise\n\ |
| 1718 | a ValueError. Other possible values are 'ignore' and 'replace'."; |
| 1719 | |
| 1720 | static PyObject * |
| 1721 | string_encode(PyStringObject *self, PyObject *args) |
| 1722 | { |
| 1723 | char *encoding = NULL; |
| 1724 | char *errors = NULL; |
| 1725 | if (!PyArg_ParseTuple(args, "|ss:encode", &encoding, &errors)) |
| 1726 | return NULL; |
| 1727 | return PyString_AsEncodedString((PyObject *)self, encoding, errors); |
| 1728 | } |
| 1729 | |
| 1730 | |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 1731 | static char expandtabs__doc__[] = |
| 1732 | "S.expandtabs([tabsize]) -> string\n\ |
| 1733 | \n\ |
| 1734 | Return a copy of S where all tab characters are expanded using spaces.\n\ |
| 1735 | If tabsize is not given, a tab size of 8 characters is assumed."; |
| 1736 | |
| 1737 | static PyObject* |
| 1738 | string_expandtabs(PyStringObject *self, PyObject *args) |
| 1739 | { |
| 1740 | const char *e, *p; |
| 1741 | char *q; |
| 1742 | int i, j; |
| 1743 | PyObject *u; |
| 1744 | int tabsize = 8; |
| 1745 | |
| 1746 | if (!PyArg_ParseTuple(args, "|i:expandtabs", &tabsize)) |
| 1747 | return NULL; |
| 1748 | |
Thomas Wouters | 7e47402 | 2000-07-16 12:04:32 +0000 | [diff] [blame] | 1749 | /* First pass: determine size of output string */ |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 1750 | i = j = 0; |
| 1751 | e = PyString_AS_STRING(self) + PyString_GET_SIZE(self); |
| 1752 | for (p = PyString_AS_STRING(self); p < e; p++) |
| 1753 | if (*p == '\t') { |
| 1754 | if (tabsize > 0) |
| 1755 | j += tabsize - (j % tabsize); |
| 1756 | } |
| 1757 | else { |
| 1758 | j++; |
| 1759 | if (*p == '\n' || *p == '\r') { |
| 1760 | i += j; |
| 1761 | j = 0; |
| 1762 | } |
| 1763 | } |
| 1764 | |
| 1765 | /* Second pass: create output string and fill it */ |
| 1766 | u = PyString_FromStringAndSize(NULL, i + j); |
| 1767 | if (!u) |
| 1768 | return NULL; |
| 1769 | |
| 1770 | j = 0; |
| 1771 | q = PyString_AS_STRING(u); |
| 1772 | |
| 1773 | for (p = PyString_AS_STRING(self); p < e; p++) |
| 1774 | if (*p == '\t') { |
| 1775 | if (tabsize > 0) { |
| 1776 | i = tabsize - (j % tabsize); |
| 1777 | j += i; |
| 1778 | while (i--) |
| 1779 | *q++ = ' '; |
| 1780 | } |
| 1781 | } |
| 1782 | else { |
| 1783 | j++; |
| 1784 | *q++ = *p; |
| 1785 | if (*p == '\n' || *p == '\r') |
| 1786 | j = 0; |
| 1787 | } |
| 1788 | |
| 1789 | return u; |
| 1790 | } |
| 1791 | |
| 1792 | static |
| 1793 | PyObject *pad(PyStringObject *self, |
| 1794 | int left, |
| 1795 | int right, |
| 1796 | char fill) |
| 1797 | { |
| 1798 | PyObject *u; |
| 1799 | |
| 1800 | if (left < 0) |
| 1801 | left = 0; |
| 1802 | if (right < 0) |
| 1803 | right = 0; |
| 1804 | |
| 1805 | if (left == 0 && right == 0) { |
| 1806 | Py_INCREF(self); |
| 1807 | return (PyObject *)self; |
| 1808 | } |
| 1809 | |
| 1810 | u = PyString_FromStringAndSize(NULL, |
| 1811 | left + PyString_GET_SIZE(self) + right); |
| 1812 | if (u) { |
| 1813 | if (left) |
| 1814 | memset(PyString_AS_STRING(u), fill, left); |
| 1815 | memcpy(PyString_AS_STRING(u) + left, |
| 1816 | PyString_AS_STRING(self), |
| 1817 | PyString_GET_SIZE(self)); |
| 1818 | if (right) |
| 1819 | memset(PyString_AS_STRING(u) + left + PyString_GET_SIZE(self), |
| 1820 | fill, right); |
| 1821 | } |
| 1822 | |
| 1823 | return u; |
| 1824 | } |
| 1825 | |
| 1826 | static char ljust__doc__[] = |
| 1827 | "S.ljust(width) -> string\n\ |
| 1828 | \n\ |
| 1829 | Return S left justified in a string of length width. Padding is\n\ |
| 1830 | done using spaces."; |
| 1831 | |
| 1832 | static PyObject * |
| 1833 | string_ljust(PyStringObject *self, PyObject *args) |
| 1834 | { |
| 1835 | int width; |
| 1836 | if (!PyArg_ParseTuple(args, "i:ljust", &width)) |
| 1837 | return NULL; |
| 1838 | |
| 1839 | if (PyString_GET_SIZE(self) >= width) { |
| 1840 | Py_INCREF(self); |
| 1841 | return (PyObject*) self; |
| 1842 | } |
| 1843 | |
| 1844 | return pad(self, 0, width - PyString_GET_SIZE(self), ' '); |
| 1845 | } |
| 1846 | |
| 1847 | |
| 1848 | static char rjust__doc__[] = |
| 1849 | "S.rjust(width) -> string\n\ |
| 1850 | \n\ |
| 1851 | Return S right justified in a string of length width. Padding is\n\ |
| 1852 | done using spaces."; |
| 1853 | |
| 1854 | static PyObject * |
| 1855 | string_rjust(PyStringObject *self, PyObject *args) |
| 1856 | { |
| 1857 | int width; |
| 1858 | if (!PyArg_ParseTuple(args, "i:rjust", &width)) |
| 1859 | return NULL; |
| 1860 | |
| 1861 | if (PyString_GET_SIZE(self) >= width) { |
| 1862 | Py_INCREF(self); |
| 1863 | return (PyObject*) self; |
| 1864 | } |
| 1865 | |
| 1866 | return pad(self, width - PyString_GET_SIZE(self), 0, ' '); |
| 1867 | } |
| 1868 | |
| 1869 | |
| 1870 | static char center__doc__[] = |
| 1871 | "S.center(width) -> string\n\ |
| 1872 | \n\ |
| 1873 | Return S centered in a string of length width. Padding is done\n\ |
| 1874 | using spaces."; |
| 1875 | |
| 1876 | static PyObject * |
| 1877 | string_center(PyStringObject *self, PyObject *args) |
| 1878 | { |
| 1879 | int marg, left; |
| 1880 | int width; |
| 1881 | |
| 1882 | if (!PyArg_ParseTuple(args, "i:center", &width)) |
| 1883 | return NULL; |
| 1884 | |
| 1885 | if (PyString_GET_SIZE(self) >= width) { |
| 1886 | Py_INCREF(self); |
| 1887 | return (PyObject*) self; |
| 1888 | } |
| 1889 | |
| 1890 | marg = width - PyString_GET_SIZE(self); |
| 1891 | left = marg / 2 + (marg & width & 1); |
| 1892 | |
| 1893 | return pad(self, left, marg - left, ' '); |
| 1894 | } |
| 1895 | |
| 1896 | #if 0 |
| 1897 | static char zfill__doc__[] = |
| 1898 | "S.zfill(width) -> string\n\ |
| 1899 | \n\ |
| 1900 | Pad a numeric string x with zeros on the left, to fill a field\n\ |
| 1901 | of the specified width. The string x is never truncated."; |
| 1902 | |
| 1903 | static PyObject * |
| 1904 | string_zfill(PyStringObject *self, PyObject *args) |
| 1905 | { |
| 1906 | int fill; |
| 1907 | PyObject *u; |
| 1908 | char *str; |
| 1909 | |
| 1910 | int width; |
| 1911 | if (!PyArg_ParseTuple(args, "i:zfill", &width)) |
| 1912 | return NULL; |
| 1913 | |
| 1914 | if (PyString_GET_SIZE(self) >= width) { |
| 1915 | Py_INCREF(self); |
| 1916 | return (PyObject*) self; |
| 1917 | } |
| 1918 | |
| 1919 | fill = width - PyString_GET_SIZE(self); |
| 1920 | |
| 1921 | u = pad(self, fill, 0, '0'); |
| 1922 | if (u == NULL) |
| 1923 | return NULL; |
| 1924 | |
| 1925 | str = PyString_AS_STRING(u); |
| 1926 | if (str[fill] == '+' || str[fill] == '-') { |
| 1927 | /* move sign to beginning of string */ |
| 1928 | str[0] = str[fill]; |
| 1929 | str[fill] = '0'; |
| 1930 | } |
| 1931 | |
| 1932 | return u; |
| 1933 | } |
| 1934 | #endif |
| 1935 | |
| 1936 | static char isspace__doc__[] = |
| 1937 | "S.isspace() -> int\n\ |
| 1938 | \n\ |
| 1939 | Return 1 if there are only whitespace characters in S,\n\ |
| 1940 | 0 otherwise."; |
| 1941 | |
| 1942 | static PyObject* |
| 1943 | string_isspace(PyStringObject *self, PyObject *args) |
| 1944 | { |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame] | 1945 | register const unsigned char *p |
| 1946 | = (unsigned char *) PyString_AS_STRING(self); |
Guido van Rossum | b8f820c | 2000-05-05 20:44:24 +0000 | [diff] [blame] | 1947 | register const unsigned char *e; |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 1948 | |
| 1949 | if (!PyArg_NoArgs(args)) |
| 1950 | return NULL; |
| 1951 | |
| 1952 | /* Shortcut for single character strings */ |
| 1953 | if (PyString_GET_SIZE(self) == 1 && |
| 1954 | isspace(*p)) |
| 1955 | return PyInt_FromLong(1); |
| 1956 | |
Marc-André Lemburg | 60bc809 | 2000-06-14 09:18:32 +0000 | [diff] [blame] | 1957 | /* Special case for empty strings */ |
| 1958 | if (PyString_GET_SIZE(self) == 0) |
| 1959 | return PyInt_FromLong(0); |
| 1960 | |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 1961 | e = p + PyString_GET_SIZE(self); |
| 1962 | for (; p < e; p++) { |
| 1963 | if (!isspace(*p)) |
| 1964 | return PyInt_FromLong(0); |
| 1965 | } |
| 1966 | return PyInt_FromLong(1); |
| 1967 | } |
| 1968 | |
| 1969 | |
Marc-André Lemburg | 4027f8f | 2000-07-05 09:47:46 +0000 | [diff] [blame] | 1970 | static char isalpha__doc__[] = |
| 1971 | "S.isalpha() -> int\n\ |
| 1972 | \n\ |
| 1973 | Return 1 if all characters in S are alphabetic\n\ |
| 1974 | and there is at least one character in S, 0 otherwise."; |
| 1975 | |
| 1976 | static PyObject* |
| 1977 | string_isalpha(PyUnicodeObject *self, PyObject *args) |
| 1978 | { |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame] | 1979 | register const unsigned char *p |
| 1980 | = (unsigned char *) PyString_AS_STRING(self); |
Marc-André Lemburg | 4027f8f | 2000-07-05 09:47:46 +0000 | [diff] [blame] | 1981 | register const unsigned char *e; |
| 1982 | |
| 1983 | if (!PyArg_NoArgs(args)) |
| 1984 | return NULL; |
| 1985 | |
| 1986 | /* Shortcut for single character strings */ |
| 1987 | if (PyString_GET_SIZE(self) == 1 && |
| 1988 | isalpha(*p)) |
| 1989 | return PyInt_FromLong(1); |
| 1990 | |
| 1991 | /* Special case for empty strings */ |
| 1992 | if (PyString_GET_SIZE(self) == 0) |
| 1993 | return PyInt_FromLong(0); |
| 1994 | |
| 1995 | e = p + PyString_GET_SIZE(self); |
| 1996 | for (; p < e; p++) { |
| 1997 | if (!isalpha(*p)) |
| 1998 | return PyInt_FromLong(0); |
| 1999 | } |
| 2000 | return PyInt_FromLong(1); |
| 2001 | } |
| 2002 | |
| 2003 | |
| 2004 | static char isalnum__doc__[] = |
| 2005 | "S.isalnum() -> int\n\ |
| 2006 | \n\ |
| 2007 | Return 1 if all characters in S are alphanumeric\n\ |
| 2008 | and there is at least one character in S, 0 otherwise."; |
| 2009 | |
| 2010 | static PyObject* |
| 2011 | string_isalnum(PyUnicodeObject *self, PyObject *args) |
| 2012 | { |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame] | 2013 | register const unsigned char *p |
| 2014 | = (unsigned char *) PyString_AS_STRING(self); |
Marc-André Lemburg | 4027f8f | 2000-07-05 09:47:46 +0000 | [diff] [blame] | 2015 | register const unsigned char *e; |
| 2016 | |
| 2017 | if (!PyArg_NoArgs(args)) |
| 2018 | return NULL; |
| 2019 | |
| 2020 | /* Shortcut for single character strings */ |
| 2021 | if (PyString_GET_SIZE(self) == 1 && |
| 2022 | isalnum(*p)) |
| 2023 | return PyInt_FromLong(1); |
| 2024 | |
| 2025 | /* Special case for empty strings */ |
| 2026 | if (PyString_GET_SIZE(self) == 0) |
| 2027 | return PyInt_FromLong(0); |
| 2028 | |
| 2029 | e = p + PyString_GET_SIZE(self); |
| 2030 | for (; p < e; p++) { |
| 2031 | if (!isalnum(*p)) |
| 2032 | return PyInt_FromLong(0); |
| 2033 | } |
| 2034 | return PyInt_FromLong(1); |
| 2035 | } |
| 2036 | |
| 2037 | |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 2038 | static char isdigit__doc__[] = |
| 2039 | "S.isdigit() -> int\n\ |
| 2040 | \n\ |
| 2041 | Return 1 if there are only digit characters in S,\n\ |
| 2042 | 0 otherwise."; |
| 2043 | |
| 2044 | static PyObject* |
| 2045 | string_isdigit(PyStringObject *self, PyObject *args) |
| 2046 | { |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame] | 2047 | register const unsigned char *p |
| 2048 | = (unsigned char *) PyString_AS_STRING(self); |
Guido van Rossum | b8f820c | 2000-05-05 20:44:24 +0000 | [diff] [blame] | 2049 | register const unsigned char *e; |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 2050 | |
| 2051 | if (!PyArg_NoArgs(args)) |
| 2052 | return NULL; |
| 2053 | |
| 2054 | /* Shortcut for single character strings */ |
| 2055 | if (PyString_GET_SIZE(self) == 1 && |
| 2056 | isdigit(*p)) |
| 2057 | return PyInt_FromLong(1); |
| 2058 | |
Marc-André Lemburg | 60bc809 | 2000-06-14 09:18:32 +0000 | [diff] [blame] | 2059 | /* Special case for empty strings */ |
| 2060 | if (PyString_GET_SIZE(self) == 0) |
| 2061 | return PyInt_FromLong(0); |
| 2062 | |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 2063 | e = p + PyString_GET_SIZE(self); |
| 2064 | for (; p < e; p++) { |
| 2065 | if (!isdigit(*p)) |
| 2066 | return PyInt_FromLong(0); |
| 2067 | } |
| 2068 | return PyInt_FromLong(1); |
| 2069 | } |
| 2070 | |
| 2071 | |
| 2072 | static char islower__doc__[] = |
| 2073 | "S.islower() -> int\n\ |
| 2074 | \n\ |
| 2075 | Return 1 if all cased characters in S are lowercase and there is\n\ |
| 2076 | at least one cased character in S, 0 otherwise."; |
| 2077 | |
| 2078 | static PyObject* |
| 2079 | string_islower(PyStringObject *self, PyObject *args) |
| 2080 | { |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame] | 2081 | register const unsigned char *p |
| 2082 | = (unsigned char *) PyString_AS_STRING(self); |
Guido van Rossum | b8f820c | 2000-05-05 20:44:24 +0000 | [diff] [blame] | 2083 | register const unsigned char *e; |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 2084 | int cased; |
| 2085 | |
| 2086 | if (!PyArg_NoArgs(args)) |
| 2087 | return NULL; |
| 2088 | |
| 2089 | /* Shortcut for single character strings */ |
| 2090 | if (PyString_GET_SIZE(self) == 1) |
| 2091 | return PyInt_FromLong(islower(*p) != 0); |
| 2092 | |
Marc-André Lemburg | 60bc809 | 2000-06-14 09:18:32 +0000 | [diff] [blame] | 2093 | /* Special case for empty strings */ |
| 2094 | if (PyString_GET_SIZE(self) == 0) |
| 2095 | return PyInt_FromLong(0); |
| 2096 | |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 2097 | e = p + PyString_GET_SIZE(self); |
| 2098 | cased = 0; |
| 2099 | for (; p < e; p++) { |
| 2100 | if (isupper(*p)) |
| 2101 | return PyInt_FromLong(0); |
| 2102 | else if (!cased && islower(*p)) |
| 2103 | cased = 1; |
| 2104 | } |
| 2105 | return PyInt_FromLong(cased); |
| 2106 | } |
| 2107 | |
| 2108 | |
| 2109 | static char isupper__doc__[] = |
| 2110 | "S.isupper() -> int\n\ |
| 2111 | \n\ |
| 2112 | Return 1 if all cased characters in S are uppercase and there is\n\ |
| 2113 | at least one cased character in S, 0 otherwise."; |
| 2114 | |
| 2115 | static PyObject* |
| 2116 | string_isupper(PyStringObject *self, PyObject *args) |
| 2117 | { |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame] | 2118 | register const unsigned char *p |
| 2119 | = (unsigned char *) PyString_AS_STRING(self); |
Guido van Rossum | b8f820c | 2000-05-05 20:44:24 +0000 | [diff] [blame] | 2120 | register const unsigned char *e; |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 2121 | int cased; |
| 2122 | |
| 2123 | if (!PyArg_NoArgs(args)) |
| 2124 | return NULL; |
| 2125 | |
| 2126 | /* Shortcut for single character strings */ |
| 2127 | if (PyString_GET_SIZE(self) == 1) |
| 2128 | return PyInt_FromLong(isupper(*p) != 0); |
| 2129 | |
Marc-André Lemburg | 60bc809 | 2000-06-14 09:18:32 +0000 | [diff] [blame] | 2130 | /* Special case for empty strings */ |
| 2131 | if (PyString_GET_SIZE(self) == 0) |
| 2132 | return PyInt_FromLong(0); |
| 2133 | |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 2134 | e = p + PyString_GET_SIZE(self); |
| 2135 | cased = 0; |
| 2136 | for (; p < e; p++) { |
| 2137 | if (islower(*p)) |
| 2138 | return PyInt_FromLong(0); |
| 2139 | else if (!cased && isupper(*p)) |
| 2140 | cased = 1; |
| 2141 | } |
| 2142 | return PyInt_FromLong(cased); |
| 2143 | } |
| 2144 | |
| 2145 | |
| 2146 | static char istitle__doc__[] = |
| 2147 | "S.istitle() -> int\n\ |
| 2148 | \n\ |
| 2149 | Return 1 if S is a titlecased string, i.e. uppercase characters\n\ |
| 2150 | may only follow uncased characters and lowercase characters only cased\n\ |
| 2151 | ones. Return 0 otherwise."; |
| 2152 | |
| 2153 | static PyObject* |
| 2154 | string_istitle(PyStringObject *self, PyObject *args) |
| 2155 | { |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame] | 2156 | register const unsigned char *p |
| 2157 | = (unsigned char *) PyString_AS_STRING(self); |
Guido van Rossum | b8f820c | 2000-05-05 20:44:24 +0000 | [diff] [blame] | 2158 | register const unsigned char *e; |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 2159 | int cased, previous_is_cased; |
| 2160 | |
| 2161 | if (!PyArg_NoArgs(args)) |
| 2162 | return NULL; |
| 2163 | |
| 2164 | /* Shortcut for single character strings */ |
| 2165 | if (PyString_GET_SIZE(self) == 1) |
| 2166 | return PyInt_FromLong(isupper(*p) != 0); |
| 2167 | |
Marc-André Lemburg | 60bc809 | 2000-06-14 09:18:32 +0000 | [diff] [blame] | 2168 | /* Special case for empty strings */ |
| 2169 | if (PyString_GET_SIZE(self) == 0) |
| 2170 | return PyInt_FromLong(0); |
| 2171 | |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 2172 | e = p + PyString_GET_SIZE(self); |
| 2173 | cased = 0; |
| 2174 | previous_is_cased = 0; |
| 2175 | for (; p < e; p++) { |
Guido van Rossum | b8f820c | 2000-05-05 20:44:24 +0000 | [diff] [blame] | 2176 | register const unsigned char ch = *p; |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 2177 | |
| 2178 | if (isupper(ch)) { |
| 2179 | if (previous_is_cased) |
| 2180 | return PyInt_FromLong(0); |
| 2181 | previous_is_cased = 1; |
| 2182 | cased = 1; |
| 2183 | } |
| 2184 | else if (islower(ch)) { |
| 2185 | if (!previous_is_cased) |
| 2186 | return PyInt_FromLong(0); |
| 2187 | previous_is_cased = 1; |
| 2188 | cased = 1; |
| 2189 | } |
| 2190 | else |
| 2191 | previous_is_cased = 0; |
| 2192 | } |
| 2193 | return PyInt_FromLong(cased); |
| 2194 | } |
| 2195 | |
| 2196 | |
| 2197 | static char splitlines__doc__[] = |
Guido van Rossum | f0b7b04 | 2000-04-11 15:39:26 +0000 | [diff] [blame] | 2198 | "S.splitlines([keepends]]) -> list of strings\n\ |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 2199 | \n\ |
| 2200 | Return a list of the lines in S, breaking at line boundaries.\n\ |
Guido van Rossum | f0b7b04 | 2000-04-11 15:39:26 +0000 | [diff] [blame] | 2201 | Line breaks are not included in the resulting list unless keepends\n\ |
| 2202 | is given and true."; |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 2203 | |
| 2204 | #define SPLIT_APPEND(data, left, right) \ |
| 2205 | str = PyString_FromStringAndSize(data + left, right - left); \ |
| 2206 | if (!str) \ |
| 2207 | goto onError; \ |
| 2208 | if (PyList_Append(list, str)) { \ |
| 2209 | Py_DECREF(str); \ |
| 2210 | goto onError; \ |
| 2211 | } \ |
| 2212 | else \ |
| 2213 | Py_DECREF(str); |
| 2214 | |
| 2215 | static PyObject* |
| 2216 | string_splitlines(PyStringObject *self, PyObject *args) |
| 2217 | { |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 2218 | register int i; |
| 2219 | register int j; |
| 2220 | int len; |
Guido van Rossum | f0b7b04 | 2000-04-11 15:39:26 +0000 | [diff] [blame] | 2221 | int keepends = 0; |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 2222 | PyObject *list; |
| 2223 | PyObject *str; |
| 2224 | char *data; |
| 2225 | |
Guido van Rossum | f0b7b04 | 2000-04-11 15:39:26 +0000 | [diff] [blame] | 2226 | if (!PyArg_ParseTuple(args, "|i:splitlines", &keepends)) |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 2227 | return NULL; |
| 2228 | |
| 2229 | data = PyString_AS_STRING(self); |
| 2230 | len = PyString_GET_SIZE(self); |
| 2231 | |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 2232 | list = PyList_New(0); |
| 2233 | if (!list) |
| 2234 | goto onError; |
| 2235 | |
| 2236 | for (i = j = 0; i < len; ) { |
Guido van Rossum | f0b7b04 | 2000-04-11 15:39:26 +0000 | [diff] [blame] | 2237 | int eol; |
| 2238 | |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 2239 | /* Find a line and append it */ |
| 2240 | while (i < len && data[i] != '\n' && data[i] != '\r') |
| 2241 | i++; |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 2242 | |
| 2243 | /* Skip the line break reading CRLF as one line break */ |
Guido van Rossum | f0b7b04 | 2000-04-11 15:39:26 +0000 | [diff] [blame] | 2244 | eol = i; |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 2245 | if (i < len) { |
| 2246 | if (data[i] == '\r' && i + 1 < len && |
| 2247 | data[i+1] == '\n') |
| 2248 | i += 2; |
| 2249 | else |
| 2250 | i++; |
Guido van Rossum | f0b7b04 | 2000-04-11 15:39:26 +0000 | [diff] [blame] | 2251 | if (keepends) |
| 2252 | eol = i; |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 2253 | } |
Guido van Rossum | f0b7b04 | 2000-04-11 15:39:26 +0000 | [diff] [blame] | 2254 | SPLIT_APPEND(data, j, eol); |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 2255 | j = i; |
| 2256 | } |
| 2257 | if (j < len) { |
| 2258 | SPLIT_APPEND(data, j, len); |
| 2259 | } |
| 2260 | |
| 2261 | return list; |
| 2262 | |
| 2263 | onError: |
| 2264 | Py_DECREF(list); |
| 2265 | return NULL; |
| 2266 | } |
| 2267 | |
| 2268 | #undef SPLIT_APPEND |
| 2269 | |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 2270 | |
| 2271 | static PyMethodDef |
| 2272 | string_methods[] = { |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 2273 | /* Counterparts of the obsolete stropmodule functions; except |
| 2274 | string.maketrans(). */ |
| 2275 | {"join", (PyCFunction)string_join, 1, join__doc__}, |
| 2276 | {"split", (PyCFunction)string_split, 1, split__doc__}, |
| 2277 | {"lower", (PyCFunction)string_lower, 1, lower__doc__}, |
| 2278 | {"upper", (PyCFunction)string_upper, 1, upper__doc__}, |
| 2279 | {"islower", (PyCFunction)string_islower, 0, islower__doc__}, |
| 2280 | {"isupper", (PyCFunction)string_isupper, 0, isupper__doc__}, |
| 2281 | {"isspace", (PyCFunction)string_isspace, 0, isspace__doc__}, |
| 2282 | {"isdigit", (PyCFunction)string_isdigit, 0, isdigit__doc__}, |
| 2283 | {"istitle", (PyCFunction)string_istitle, 0, istitle__doc__}, |
Marc-André Lemburg | 4027f8f | 2000-07-05 09:47:46 +0000 | [diff] [blame] | 2284 | {"isalpha", (PyCFunction)string_isalpha, 0, isalpha__doc__}, |
| 2285 | {"isalnum", (PyCFunction)string_isalnum, 0, isalnum__doc__}, |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 2286 | {"capitalize", (PyCFunction)string_capitalize, 1, capitalize__doc__}, |
| 2287 | {"count", (PyCFunction)string_count, 1, count__doc__}, |
| 2288 | {"endswith", (PyCFunction)string_endswith, 1, endswith__doc__}, |
| 2289 | {"find", (PyCFunction)string_find, 1, find__doc__}, |
| 2290 | {"index", (PyCFunction)string_index, 1, index__doc__}, |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 2291 | {"lstrip", (PyCFunction)string_lstrip, 1, lstrip__doc__}, |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 2292 | {"replace", (PyCFunction)string_replace, 1, replace__doc__}, |
| 2293 | {"rfind", (PyCFunction)string_rfind, 1, rfind__doc__}, |
| 2294 | {"rindex", (PyCFunction)string_rindex, 1, rindex__doc__}, |
| 2295 | {"rstrip", (PyCFunction)string_rstrip, 1, rstrip__doc__}, |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 2296 | {"startswith", (PyCFunction)string_startswith, 1, startswith__doc__}, |
| 2297 | {"strip", (PyCFunction)string_strip, 1, strip__doc__}, |
| 2298 | {"swapcase", (PyCFunction)string_swapcase, 1, swapcase__doc__}, |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 2299 | {"translate", (PyCFunction)string_translate, 1, translate__doc__}, |
| 2300 | {"title", (PyCFunction)string_title, 1, title__doc__}, |
| 2301 | {"ljust", (PyCFunction)string_ljust, 1, ljust__doc__}, |
| 2302 | {"rjust", (PyCFunction)string_rjust, 1, rjust__doc__}, |
| 2303 | {"center", (PyCFunction)string_center, 1, center__doc__}, |
Marc-André Lemburg | 63f3d17 | 2000-07-06 11:29:01 +0000 | [diff] [blame] | 2304 | {"encode", (PyCFunction)string_encode, 1, encode__doc__}, |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 2305 | {"expandtabs", (PyCFunction)string_expandtabs, 1, expandtabs__doc__}, |
| 2306 | {"splitlines", (PyCFunction)string_splitlines, 1, splitlines__doc__}, |
| 2307 | #if 0 |
| 2308 | {"zfill", (PyCFunction)string_zfill, 1, zfill__doc__}, |
| 2309 | #endif |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 2310 | {NULL, NULL} /* sentinel */ |
| 2311 | }; |
| 2312 | |
| 2313 | static PyObject * |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame] | 2314 | string_getattr(PyStringObject *s, char *name) |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 2315 | { |
| 2316 | return Py_FindMethod(string_methods, (PyObject*)s, name); |
| 2317 | } |
| 2318 | |
| 2319 | |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 2320 | PyTypeObject PyString_Type = { |
| 2321 | PyObject_HEAD_INIT(&PyType_Type) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 2322 | 0, |
| 2323 | "string", |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 2324 | sizeof(PyStringObject), |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 2325 | sizeof(char), |
Guido van Rossum | 013142a | 1994-08-30 08:19:36 +0000 | [diff] [blame] | 2326 | (destructor)string_dealloc, /*tp_dealloc*/ |
| 2327 | (printfunc)string_print, /*tp_print*/ |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 2328 | (getattrfunc)string_getattr, /*tp_getattr*/ |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 2329 | 0, /*tp_setattr*/ |
Guido van Rossum | 013142a | 1994-08-30 08:19:36 +0000 | [diff] [blame] | 2330 | (cmpfunc)string_compare, /*tp_compare*/ |
| 2331 | (reprfunc)string_repr, /*tp_repr*/ |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 2332 | 0, /*tp_as_number*/ |
| 2333 | &string_as_sequence, /*tp_as_sequence*/ |
| 2334 | 0, /*tp_as_mapping*/ |
Guido van Rossum | 013142a | 1994-08-30 08:19:36 +0000 | [diff] [blame] | 2335 | (hashfunc)string_hash, /*tp_hash*/ |
Guido van Rossum | 2a61e74 | 1997-01-18 07:55:05 +0000 | [diff] [blame] | 2336 | 0, /*tp_call*/ |
| 2337 | 0, /*tp_str*/ |
| 2338 | 0, /*tp_getattro*/ |
| 2339 | 0, /*tp_setattro*/ |
Guido van Rossum | fdf95dd | 1997-05-05 22:15:02 +0000 | [diff] [blame] | 2340 | &string_as_buffer, /*tp_as_buffer*/ |
Guido van Rossum | 1db7070 | 1998-10-08 02:18:52 +0000 | [diff] [blame] | 2341 | Py_TPFLAGS_DEFAULT, /*tp_flags*/ |
Guido van Rossum | 2a61e74 | 1997-01-18 07:55:05 +0000 | [diff] [blame] | 2342 | 0, /*tp_doc*/ |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 2343 | }; |
| 2344 | |
| 2345 | void |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame] | 2346 | PyString_Concat(register PyObject **pv, register PyObject *w) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 2347 | { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 2348 | register PyObject *v; |
Guido van Rossum | 013142a | 1994-08-30 08:19:36 +0000 | [diff] [blame] | 2349 | if (*pv == NULL) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 2350 | return; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 2351 | if (w == NULL || !PyString_Check(*pv)) { |
| 2352 | Py_DECREF(*pv); |
Guido van Rossum | 013142a | 1994-08-30 08:19:36 +0000 | [diff] [blame] | 2353 | *pv = NULL; |
| 2354 | return; |
| 2355 | } |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 2356 | v = string_concat((PyStringObject *) *pv, w); |
| 2357 | Py_DECREF(*pv); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 2358 | *pv = v; |
| 2359 | } |
| 2360 | |
Guido van Rossum | 013142a | 1994-08-30 08:19:36 +0000 | [diff] [blame] | 2361 | void |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame] | 2362 | PyString_ConcatAndDel(register PyObject **pv, register PyObject *w) |
Guido van Rossum | 013142a | 1994-08-30 08:19:36 +0000 | [diff] [blame] | 2363 | { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 2364 | PyString_Concat(pv, w); |
| 2365 | Py_XDECREF(w); |
Guido van Rossum | 013142a | 1994-08-30 08:19:36 +0000 | [diff] [blame] | 2366 | } |
| 2367 | |
| 2368 | |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 2369 | /* The following function breaks the notion that strings are immutable: |
| 2370 | it changes the size of a string. We get away with this only if there |
| 2371 | is only one module referencing the object. You can also think of it |
| 2372 | as creating a new string object and destroying the old one, only |
| 2373 | more efficiently. In any case, don't use this if the string may |
| 2374 | already be known to some other part of the code... */ |
| 2375 | |
| 2376 | int |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame] | 2377 | _PyString_Resize(PyObject **pv, int newsize) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 2378 | { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 2379 | register PyObject *v; |
| 2380 | register PyStringObject *sv; |
Guido van Rossum | 921842f | 1990-11-18 17:30:23 +0000 | [diff] [blame] | 2381 | v = *pv; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 2382 | if (!PyString_Check(v) || v->ob_refcnt != 1) { |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 2383 | *pv = 0; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 2384 | Py_DECREF(v); |
| 2385 | PyErr_BadInternalCall(); |
Guido van Rossum | 2a9096b | 1990-10-21 22:15:08 +0000 | [diff] [blame] | 2386 | return -1; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 2387 | } |
Guido van Rossum | 921842f | 1990-11-18 17:30:23 +0000 | [diff] [blame] | 2388 | /* XXX UNREF/NEWREF interface should be more symmetrical */ |
Guido van Rossum | 441e4ab | 1996-05-23 22:46:51 +0000 | [diff] [blame] | 2389 | #ifdef Py_REF_DEBUG |
Guido van Rossum | 6f9e433 | 1995-03-29 16:57:48 +0000 | [diff] [blame] | 2390 | --_Py_RefTotal; |
Guido van Rossum | 921842f | 1990-11-18 17:30:23 +0000 | [diff] [blame] | 2391 | #endif |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 2392 | _Py_ForgetReference(v); |
| 2393 | *pv = (PyObject *) |
Guido van Rossum | b18618d | 2000-05-03 23:44:39 +0000 | [diff] [blame] | 2394 | PyObject_REALLOC((char *)v, |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 2395 | sizeof(PyStringObject) + newsize * sizeof(char)); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 2396 | if (*pv == NULL) { |
Guido van Rossum | b18618d | 2000-05-03 23:44:39 +0000 | [diff] [blame] | 2397 | PyObject_DEL(v); |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 2398 | PyErr_NoMemory(); |
Guido van Rossum | 2a9096b | 1990-10-21 22:15:08 +0000 | [diff] [blame] | 2399 | return -1; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 2400 | } |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 2401 | _Py_NewReference(*pv); |
| 2402 | sv = (PyStringObject *) *pv; |
Guido van Rossum | 921842f | 1990-11-18 17:30:23 +0000 | [diff] [blame] | 2403 | sv->ob_size = newsize; |
| 2404 | sv->ob_sval[newsize] = '\0'; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 2405 | return 0; |
| 2406 | } |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2407 | |
| 2408 | /* Helpers for formatstring */ |
| 2409 | |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 2410 | static PyObject * |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame] | 2411 | getnextarg(PyObject *args, int arglen, int *p_argidx) |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2412 | { |
| 2413 | int argidx = *p_argidx; |
| 2414 | if (argidx < arglen) { |
| 2415 | (*p_argidx)++; |
| 2416 | if (arglen < 0) |
| 2417 | return args; |
| 2418 | else |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 2419 | return PyTuple_GetItem(args, argidx); |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2420 | } |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 2421 | PyErr_SetString(PyExc_TypeError, |
| 2422 | "not enough arguments for format string"); |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2423 | return NULL; |
| 2424 | } |
| 2425 | |
Tim Peters | 38fd5b6 | 2000-09-21 05:43:11 +0000 | [diff] [blame] | 2426 | /* Format codes |
| 2427 | * F_LJUST '-' |
| 2428 | * F_SIGN '+' |
| 2429 | * F_BLANK ' ' |
| 2430 | * F_ALT '#' |
| 2431 | * F_ZERO '0' |
| 2432 | */ |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2433 | #define F_LJUST (1<<0) |
| 2434 | #define F_SIGN (1<<1) |
| 2435 | #define F_BLANK (1<<2) |
| 2436 | #define F_ALT (1<<3) |
| 2437 | #define F_ZERO (1<<4) |
| 2438 | |
Guido van Rossum | a04d47b | 1997-01-21 16:12:09 +0000 | [diff] [blame] | 2439 | static int |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame] | 2440 | formatfloat(char *buf, size_t buflen, int flags, |
| 2441 | int prec, int type, PyObject *v) |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2442 | { |
Marc-André Lemburg | f28dd83 | 2000-06-30 10:29:57 +0000 | [diff] [blame] | 2443 | /* fmt = '%#.' + `prec` + `type` |
| 2444 | worst case length = 3 + 10 (len of INT_MAX) + 1 = 14 (use 20)*/ |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2445 | char fmt[20]; |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2446 | double x; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 2447 | if (!PyArg_Parse(v, "d;float argument required", &x)) |
Guido van Rossum | a04d47b | 1997-01-21 16:12:09 +0000 | [diff] [blame] | 2448 | return -1; |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2449 | if (prec < 0) |
| 2450 | prec = 6; |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2451 | if (type == 'f' && fabs(x)/1e25 >= 1e25) |
| 2452 | type = 'g'; |
| 2453 | sprintf(fmt, "%%%s.%d%c", (flags&F_ALT) ? "#" : "", prec, type); |
Marc-André Lemburg | f28dd83 | 2000-06-30 10:29:57 +0000 | [diff] [blame] | 2454 | /* worst case length calc to ensure no buffer overrun: |
| 2455 | fmt = %#.<prec>g |
| 2456 | buf = '-' + [0-9]*prec + '.' + 'e+' + (longest exp |
| 2457 | for any double rep.) |
| 2458 | len = 1 + prec + 1 + 2 + 5 = 9 + prec |
| 2459 | If prec=0 the effective precision is 1 (the leading digit is |
| 2460 | always given), therefore increase by one to 10+prec. */ |
| 2461 | if (buflen <= (size_t)10 + (size_t)prec) { |
| 2462 | PyErr_SetString(PyExc_OverflowError, |
Fred Drake | 661ea26 | 2000-10-24 19:57:45 +0000 | [diff] [blame] | 2463 | "formatted float is too long (precision too large?)"); |
Marc-André Lemburg | f28dd83 | 2000-06-30 10:29:57 +0000 | [diff] [blame] | 2464 | return -1; |
| 2465 | } |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2466 | sprintf(buf, fmt, x); |
Guido van Rossum | a04d47b | 1997-01-21 16:12:09 +0000 | [diff] [blame] | 2467 | return strlen(buf); |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2468 | } |
| 2469 | |
Tim Peters | 38fd5b6 | 2000-09-21 05:43:11 +0000 | [diff] [blame] | 2470 | /* _PyString_FormatLong emulates the format codes d, u, o, x and X, and |
| 2471 | * the F_ALT flag, for Python's long (unbounded) ints. It's not used for |
| 2472 | * Python's regular ints. |
| 2473 | * Return value: a new PyString*, or NULL if error. |
| 2474 | * . *pbuf is set to point into it, |
| 2475 | * *plen set to the # of chars following that. |
| 2476 | * Caller must decref it when done using pbuf. |
| 2477 | * The string starting at *pbuf is of the form |
| 2478 | * "-"? ("0x" | "0X")? digit+ |
| 2479 | * "0x"/"0X" are present only for x and X conversions, with F_ALT |
| 2480 | * set in flags. The case of hex digits will be correct, |
| 2481 | * There will be at least prec digits, zero-filled on the left if |
| 2482 | * necessary to get that many. |
| 2483 | * val object to be converted |
| 2484 | * flags bitmask of format flags; only F_ALT is looked at |
| 2485 | * prec minimum number of digits; 0-fill on left if needed |
| 2486 | * type a character in [duoxX]; u acts the same as d |
| 2487 | * |
| 2488 | * CAUTION: o, x and X conversions on regular ints can never |
| 2489 | * produce a '-' sign, but can for Python's unbounded ints. |
| 2490 | */ |
| 2491 | PyObject* |
| 2492 | _PyString_FormatLong(PyObject *val, int flags, int prec, int type, |
| 2493 | char **pbuf, int *plen) |
| 2494 | { |
| 2495 | PyObject *result = NULL; |
| 2496 | char *buf; |
| 2497 | int i; |
| 2498 | int sign; /* 1 if '-', else 0 */ |
| 2499 | int len; /* number of characters */ |
| 2500 | int numdigits; /* len == numnondigits + numdigits */ |
| 2501 | int numnondigits = 0; |
| 2502 | |
| 2503 | switch (type) { |
| 2504 | case 'd': |
| 2505 | case 'u': |
| 2506 | result = val->ob_type->tp_str(val); |
| 2507 | break; |
| 2508 | case 'o': |
| 2509 | result = val->ob_type->tp_as_number->nb_oct(val); |
| 2510 | break; |
| 2511 | case 'x': |
| 2512 | case 'X': |
| 2513 | numnondigits = 2; |
| 2514 | result = val->ob_type->tp_as_number->nb_hex(val); |
| 2515 | break; |
| 2516 | default: |
| 2517 | assert(!"'type' not in [duoxX]"); |
| 2518 | } |
| 2519 | if (!result) |
| 2520 | return NULL; |
| 2521 | |
| 2522 | /* To modify the string in-place, there can only be one reference. */ |
| 2523 | if (result->ob_refcnt != 1) { |
| 2524 | PyErr_BadInternalCall(); |
| 2525 | return NULL; |
| 2526 | } |
| 2527 | buf = PyString_AsString(result); |
| 2528 | len = PyString_Size(result); |
| 2529 | if (buf[len-1] == 'L') { |
| 2530 | --len; |
| 2531 | buf[len] = '\0'; |
| 2532 | } |
| 2533 | sign = buf[0] == '-'; |
| 2534 | numnondigits += sign; |
| 2535 | numdigits = len - numnondigits; |
| 2536 | assert(numdigits > 0); |
| 2537 | |
| 2538 | /* Get rid of base marker unless F_ALT */ |
| 2539 | if ((flags & F_ALT) == 0) { |
| 2540 | /* Need to skip 0x, 0X or 0. */ |
| 2541 | int skipped = 0; |
| 2542 | switch (type) { |
| 2543 | case 'o': |
| 2544 | assert(buf[sign] == '0'); |
| 2545 | /* If 0 is only digit, leave it alone. */ |
| 2546 | if (numdigits > 1) { |
| 2547 | skipped = 1; |
| 2548 | --numdigits; |
| 2549 | } |
| 2550 | break; |
| 2551 | case 'x': |
| 2552 | case 'X': |
| 2553 | assert(buf[sign] == '0'); |
| 2554 | assert(buf[sign + 1] == 'x'); |
| 2555 | skipped = 2; |
| 2556 | numnondigits -= 2; |
| 2557 | break; |
| 2558 | } |
| 2559 | if (skipped) { |
| 2560 | buf += skipped; |
| 2561 | len -= skipped; |
| 2562 | if (sign) |
| 2563 | buf[0] = '-'; |
| 2564 | } |
| 2565 | assert(len == numnondigits + numdigits); |
| 2566 | assert(numdigits > 0); |
| 2567 | } |
| 2568 | |
| 2569 | /* Fill with leading zeroes to meet minimum width. */ |
| 2570 | if (prec > numdigits) { |
| 2571 | PyObject *r1 = PyString_FromStringAndSize(NULL, |
| 2572 | numnondigits + prec); |
| 2573 | char *b1; |
| 2574 | if (!r1) { |
| 2575 | Py_DECREF(result); |
| 2576 | return NULL; |
| 2577 | } |
| 2578 | b1 = PyString_AS_STRING(r1); |
| 2579 | for (i = 0; i < numnondigits; ++i) |
| 2580 | *b1++ = *buf++; |
| 2581 | for (i = 0; i < prec - numdigits; i++) |
| 2582 | *b1++ = '0'; |
| 2583 | for (i = 0; i < numdigits; i++) |
| 2584 | *b1++ = *buf++; |
| 2585 | *b1 = '\0'; |
| 2586 | Py_DECREF(result); |
| 2587 | result = r1; |
| 2588 | buf = PyString_AS_STRING(result); |
| 2589 | len = numnondigits + prec; |
| 2590 | } |
| 2591 | |
| 2592 | /* Fix up case for hex conversions. */ |
| 2593 | switch (type) { |
| 2594 | case 'x': |
| 2595 | /* Need to convert all upper case letters to lower case. */ |
| 2596 | for (i = 0; i < len; i++) |
| 2597 | if (buf[i] >= 'A' && buf[i] <= 'F') |
| 2598 | buf[i] += 'a'-'A'; |
| 2599 | break; |
| 2600 | case 'X': |
| 2601 | /* Need to convert 0x to 0X (and -0x to -0X). */ |
| 2602 | if (buf[sign + 1] == 'x') |
| 2603 | buf[sign + 1] = 'X'; |
| 2604 | break; |
| 2605 | } |
| 2606 | *pbuf = buf; |
| 2607 | *plen = len; |
| 2608 | return result; |
| 2609 | } |
| 2610 | |
Guido van Rossum | a04d47b | 1997-01-21 16:12:09 +0000 | [diff] [blame] | 2611 | static int |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame] | 2612 | formatint(char *buf, size_t buflen, int flags, |
| 2613 | int prec, int type, PyObject *v) |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2614 | { |
Marc-André Lemburg | f28dd83 | 2000-06-30 10:29:57 +0000 | [diff] [blame] | 2615 | /* fmt = '%#.' + `prec` + 'l' + `type` |
Tim Peters | 38fd5b6 | 2000-09-21 05:43:11 +0000 | [diff] [blame] | 2616 | worst case length = 3 + 19 (worst len of INT_MAX on 64-bit machine) |
| 2617 | + 1 + 1 = 24 */ |
| 2618 | char fmt[64]; /* plenty big enough! */ |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2619 | long x; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 2620 | if (!PyArg_Parse(v, "l;int argument required", &x)) |
Guido van Rossum | a04d47b | 1997-01-21 16:12:09 +0000 | [diff] [blame] | 2621 | return -1; |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2622 | if (prec < 0) |
| 2623 | prec = 1; |
| 2624 | sprintf(fmt, "%%%s.%dl%c", (flags&F_ALT) ? "#" : "", prec, type); |
Tim Peters | 38fd5b6 | 2000-09-21 05:43:11 +0000 | [diff] [blame] | 2625 | /* buf = '+'/'-'/'0'/'0x' + '[0-9]'*max(prec, len(x in octal)) |
Marc-André Lemburg | f28dd83 | 2000-06-30 10:29:57 +0000 | [diff] [blame] | 2626 | worst case buf = '0x' + [0-9]*prec, where prec >= 11 */ |
Tim Peters | 38fd5b6 | 2000-09-21 05:43:11 +0000 | [diff] [blame] | 2627 | if (buflen <= 13 || buflen <= (size_t)2 + (size_t)prec) { |
Marc-André Lemburg | f28dd83 | 2000-06-30 10:29:57 +0000 | [diff] [blame] | 2628 | PyErr_SetString(PyExc_OverflowError, |
Fred Drake | 661ea26 | 2000-10-24 19:57:45 +0000 | [diff] [blame] | 2629 | "formatted integer is too long (precision too large?)"); |
Marc-André Lemburg | f28dd83 | 2000-06-30 10:29:57 +0000 | [diff] [blame] | 2630 | return -1; |
| 2631 | } |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2632 | sprintf(buf, fmt, x); |
Guido van Rossum | a04d47b | 1997-01-21 16:12:09 +0000 | [diff] [blame] | 2633 | return strlen(buf); |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2634 | } |
| 2635 | |
Guido van Rossum | a04d47b | 1997-01-21 16:12:09 +0000 | [diff] [blame] | 2636 | static int |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame] | 2637 | formatchar(char *buf, size_t buflen, PyObject *v) |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2638 | { |
Marc-André Lemburg | f28dd83 | 2000-06-30 10:29:57 +0000 | [diff] [blame] | 2639 | /* presume that the buffer is at least 2 characters long */ |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 2640 | if (PyString_Check(v)) { |
| 2641 | if (!PyArg_Parse(v, "c;%c requires int or char", &buf[0])) |
Guido van Rossum | a04d47b | 1997-01-21 16:12:09 +0000 | [diff] [blame] | 2642 | return -1; |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2643 | } |
| 2644 | else { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 2645 | if (!PyArg_Parse(v, "b;%c requires int or char", &buf[0])) |
Guido van Rossum | a04d47b | 1997-01-21 16:12:09 +0000 | [diff] [blame] | 2646 | return -1; |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2647 | } |
| 2648 | buf[1] = '\0'; |
Guido van Rossum | a04d47b | 1997-01-21 16:12:09 +0000 | [diff] [blame] | 2649 | return 1; |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2650 | } |
| 2651 | |
Guido van Rossum | 013142a | 1994-08-30 08:19:36 +0000 | [diff] [blame] | 2652 | |
Marc-André Lemburg | f28dd83 | 2000-06-30 10:29:57 +0000 | [diff] [blame] | 2653 | /* fmt%(v1,v2,...) is roughly equivalent to sprintf(fmt, v1, v2, ...) |
| 2654 | |
| 2655 | FORMATBUFLEN is the length of the buffer in which the floats, ints, & |
| 2656 | chars are formatted. XXX This is a magic number. Each formatting |
| 2657 | routine does bounds checking to ensure no overflow, but a better |
| 2658 | solution may be to malloc a buffer of appropriate size for each |
| 2659 | format. For now, the current solution is sufficient. |
| 2660 | */ |
| 2661 | #define FORMATBUFLEN (size_t)120 |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2662 | |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 2663 | PyObject * |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame] | 2664 | PyString_Format(PyObject *format, PyObject *args) |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2665 | { |
| 2666 | char *fmt, *res; |
| 2667 | int fmtcnt, rescnt, reslen, arglen, argidx; |
Guido van Rossum | 993952b | 1996-05-21 22:44:20 +0000 | [diff] [blame] | 2668 | int args_owned = 0; |
Marc-André Lemburg | 53f3d4a | 2000-10-07 08:54:09 +0000 | [diff] [blame] | 2669 | PyObject *result, *orig_args, *v, *w; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 2670 | PyObject *dict = NULL; |
| 2671 | if (format == NULL || !PyString_Check(format) || args == NULL) { |
| 2672 | PyErr_BadInternalCall(); |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2673 | return NULL; |
| 2674 | } |
Guido van Rossum | 90daa87 | 2000-04-10 13:47:21 +0000 | [diff] [blame] | 2675 | orig_args = args; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 2676 | fmt = PyString_AsString(format); |
| 2677 | fmtcnt = PyString_Size(format); |
Guido van Rossum | 6ac258d | 1993-05-12 08:24:20 +0000 | [diff] [blame] | 2678 | reslen = rescnt = fmtcnt + 100; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 2679 | result = PyString_FromStringAndSize((char *)NULL, reslen); |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2680 | if (result == NULL) |
| 2681 | return NULL; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 2682 | res = PyString_AsString(result); |
| 2683 | if (PyTuple_Check(args)) { |
| 2684 | arglen = PyTuple_Size(args); |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2685 | argidx = 0; |
| 2686 | } |
| 2687 | else { |
| 2688 | arglen = -1; |
| 2689 | argidx = -2; |
| 2690 | } |
Guido van Rossum | 013142a | 1994-08-30 08:19:36 +0000 | [diff] [blame] | 2691 | if (args->ob_type->tp_as_mapping) |
| 2692 | dict = args; |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2693 | while (--fmtcnt >= 0) { |
| 2694 | if (*fmt != '%') { |
| 2695 | if (--rescnt < 0) { |
Guido van Rossum | 6ac258d | 1993-05-12 08:24:20 +0000 | [diff] [blame] | 2696 | rescnt = fmtcnt + 100; |
| 2697 | reslen += rescnt; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 2698 | if (_PyString_Resize(&result, reslen) < 0) |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2699 | return NULL; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 2700 | res = PyString_AsString(result) |
| 2701 | + reslen - rescnt; |
Guido van Rossum | 013142a | 1994-08-30 08:19:36 +0000 | [diff] [blame] | 2702 | --rescnt; |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2703 | } |
| 2704 | *res++ = *fmt++; |
| 2705 | } |
| 2706 | else { |
| 2707 | /* Got a format specifier */ |
| 2708 | int flags = 0; |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2709 | int width = -1; |
| 2710 | int prec = -1; |
| 2711 | int size = 0; |
Guido van Rossum | 6938a29 | 1993-11-11 14:51:57 +0000 | [diff] [blame] | 2712 | int c = '\0'; |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2713 | int fill; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 2714 | PyObject *v = NULL; |
| 2715 | PyObject *temp = NULL; |
Marc-André Lemburg | f28dd83 | 2000-06-30 10:29:57 +0000 | [diff] [blame] | 2716 | char *pbuf; |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2717 | int sign; |
| 2718 | int len; |
Marc-André Lemburg | f28dd83 | 2000-06-30 10:29:57 +0000 | [diff] [blame] | 2719 | char formatbuf[FORMATBUFLEN]; /* For format{float,int,char}() */ |
Guido van Rossum | 90daa87 | 2000-04-10 13:47:21 +0000 | [diff] [blame] | 2720 | char *fmt_start = fmt; |
| 2721 | |
Guido van Rossum | da9c271 | 1996-12-05 21:58:58 +0000 | [diff] [blame] | 2722 | fmt++; |
Guido van Rossum | 013142a | 1994-08-30 08:19:36 +0000 | [diff] [blame] | 2723 | if (*fmt == '(') { |
| 2724 | char *keystart; |
| 2725 | int keylen; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 2726 | PyObject *key; |
Guido van Rossum | 045e688 | 1997-09-08 18:30:11 +0000 | [diff] [blame] | 2727 | int pcount = 1; |
Guido van Rossum | 013142a | 1994-08-30 08:19:36 +0000 | [diff] [blame] | 2728 | |
| 2729 | if (dict == NULL) { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 2730 | PyErr_SetString(PyExc_TypeError, |
Guido van Rossum | 013142a | 1994-08-30 08:19:36 +0000 | [diff] [blame] | 2731 | "format requires a mapping"); |
| 2732 | goto error; |
| 2733 | } |
| 2734 | ++fmt; |
| 2735 | --fmtcnt; |
| 2736 | keystart = fmt; |
Guido van Rossum | 045e688 | 1997-09-08 18:30:11 +0000 | [diff] [blame] | 2737 | /* Skip over balanced parentheses */ |
| 2738 | while (pcount > 0 && --fmtcnt >= 0) { |
| 2739 | if (*fmt == ')') |
| 2740 | --pcount; |
| 2741 | else if (*fmt == '(') |
| 2742 | ++pcount; |
Guido van Rossum | 013142a | 1994-08-30 08:19:36 +0000 | [diff] [blame] | 2743 | fmt++; |
Guido van Rossum | 045e688 | 1997-09-08 18:30:11 +0000 | [diff] [blame] | 2744 | } |
| 2745 | keylen = fmt - keystart - 1; |
| 2746 | if (fmtcnt < 0 || pcount > 0) { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 2747 | PyErr_SetString(PyExc_ValueError, |
Guido van Rossum | 013142a | 1994-08-30 08:19:36 +0000 | [diff] [blame] | 2748 | "incomplete format key"); |
| 2749 | goto error; |
| 2750 | } |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 2751 | key = PyString_FromStringAndSize(keystart, |
| 2752 | keylen); |
Guido van Rossum | 013142a | 1994-08-30 08:19:36 +0000 | [diff] [blame] | 2753 | if (key == NULL) |
| 2754 | goto error; |
Guido van Rossum | 993952b | 1996-05-21 22:44:20 +0000 | [diff] [blame] | 2755 | if (args_owned) { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 2756 | Py_DECREF(args); |
Guido van Rossum | 993952b | 1996-05-21 22:44:20 +0000 | [diff] [blame] | 2757 | args_owned = 0; |
| 2758 | } |
| 2759 | args = PyObject_GetItem(dict, key); |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 2760 | Py_DECREF(key); |
Guido van Rossum | 013142a | 1994-08-30 08:19:36 +0000 | [diff] [blame] | 2761 | if (args == NULL) { |
| 2762 | goto error; |
| 2763 | } |
Guido van Rossum | 993952b | 1996-05-21 22:44:20 +0000 | [diff] [blame] | 2764 | args_owned = 1; |
Guido van Rossum | 013142a | 1994-08-30 08:19:36 +0000 | [diff] [blame] | 2765 | arglen = -1; |
| 2766 | argidx = -2; |
| 2767 | } |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2768 | while (--fmtcnt >= 0) { |
| 2769 | switch (c = *fmt++) { |
| 2770 | case '-': flags |= F_LJUST; continue; |
| 2771 | case '+': flags |= F_SIGN; continue; |
| 2772 | case ' ': flags |= F_BLANK; continue; |
| 2773 | case '#': flags |= F_ALT; continue; |
| 2774 | case '0': flags |= F_ZERO; continue; |
| 2775 | } |
| 2776 | break; |
| 2777 | } |
| 2778 | if (c == '*') { |
| 2779 | v = getnextarg(args, arglen, &argidx); |
| 2780 | if (v == NULL) |
| 2781 | goto error; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 2782 | if (!PyInt_Check(v)) { |
| 2783 | PyErr_SetString(PyExc_TypeError, |
| 2784 | "* wants int"); |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2785 | goto error; |
| 2786 | } |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 2787 | width = PyInt_AsLong(v); |
Guido van Rossum | 98c9eba | 1999-06-07 15:12:32 +0000 | [diff] [blame] | 2788 | if (width < 0) { |
| 2789 | flags |= F_LJUST; |
| 2790 | width = -width; |
| 2791 | } |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2792 | if (--fmtcnt >= 0) |
| 2793 | c = *fmt++; |
| 2794 | } |
Guido van Rossum | 9fa2c11 | 1995-02-10 17:00:37 +0000 | [diff] [blame] | 2795 | else if (c >= 0 && isdigit(c)) { |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2796 | width = c - '0'; |
| 2797 | while (--fmtcnt >= 0) { |
Guido van Rossum | 9fa2c11 | 1995-02-10 17:00:37 +0000 | [diff] [blame] | 2798 | c = Py_CHARMASK(*fmt++); |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2799 | if (!isdigit(c)) |
| 2800 | break; |
| 2801 | if ((width*10) / 10 != width) { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 2802 | PyErr_SetString( |
| 2803 | PyExc_ValueError, |
| 2804 | "width too big"); |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2805 | goto error; |
| 2806 | } |
| 2807 | width = width*10 + (c - '0'); |
| 2808 | } |
| 2809 | } |
| 2810 | if (c == '.') { |
| 2811 | prec = 0; |
| 2812 | if (--fmtcnt >= 0) |
| 2813 | c = *fmt++; |
| 2814 | if (c == '*') { |
| 2815 | v = getnextarg(args, arglen, &argidx); |
| 2816 | if (v == NULL) |
| 2817 | goto error; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 2818 | if (!PyInt_Check(v)) { |
| 2819 | PyErr_SetString( |
| 2820 | PyExc_TypeError, |
| 2821 | "* wants int"); |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2822 | goto error; |
| 2823 | } |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 2824 | prec = PyInt_AsLong(v); |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2825 | if (prec < 0) |
| 2826 | prec = 0; |
| 2827 | if (--fmtcnt >= 0) |
| 2828 | c = *fmt++; |
| 2829 | } |
Guido van Rossum | 9fa2c11 | 1995-02-10 17:00:37 +0000 | [diff] [blame] | 2830 | else if (c >= 0 && isdigit(c)) { |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2831 | prec = c - '0'; |
| 2832 | while (--fmtcnt >= 0) { |
Guido van Rossum | 9fa2c11 | 1995-02-10 17:00:37 +0000 | [diff] [blame] | 2833 | c = Py_CHARMASK(*fmt++); |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2834 | if (!isdigit(c)) |
| 2835 | break; |
| 2836 | if ((prec*10) / 10 != prec) { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 2837 | PyErr_SetString( |
| 2838 | PyExc_ValueError, |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2839 | "prec too big"); |
| 2840 | goto error; |
| 2841 | } |
| 2842 | prec = prec*10 + (c - '0'); |
| 2843 | } |
| 2844 | } |
| 2845 | } /* prec */ |
| 2846 | if (fmtcnt >= 0) { |
| 2847 | if (c == 'h' || c == 'l' || c == 'L') { |
| 2848 | size = c; |
| 2849 | if (--fmtcnt >= 0) |
| 2850 | c = *fmt++; |
| 2851 | } |
| 2852 | } |
| 2853 | if (fmtcnt < 0) { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 2854 | PyErr_SetString(PyExc_ValueError, |
| 2855 | "incomplete format"); |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2856 | goto error; |
| 2857 | } |
| 2858 | if (c != '%') { |
| 2859 | v = getnextarg(args, arglen, &argidx); |
| 2860 | if (v == NULL) |
| 2861 | goto error; |
| 2862 | } |
| 2863 | sign = 0; |
| 2864 | fill = ' '; |
| 2865 | switch (c) { |
| 2866 | case '%': |
Marc-André Lemburg | f28dd83 | 2000-06-30 10:29:57 +0000 | [diff] [blame] | 2867 | pbuf = "%"; |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2868 | len = 1; |
| 2869 | break; |
| 2870 | case 's': |
Guido van Rossum | 90daa87 | 2000-04-10 13:47:21 +0000 | [diff] [blame] | 2871 | case 'r': |
| 2872 | if (PyUnicode_Check(v)) { |
| 2873 | fmt = fmt_start; |
| 2874 | goto unicode; |
| 2875 | } |
Guido van Rossum | f0b7b04 | 2000-04-11 15:39:26 +0000 | [diff] [blame] | 2876 | if (c == 's') |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 2877 | temp = PyObject_Str(v); |
Guido van Rossum | f0b7b04 | 2000-04-11 15:39:26 +0000 | [diff] [blame] | 2878 | else |
| 2879 | temp = PyObject_Repr(v); |
Guido van Rossum | 013142a | 1994-08-30 08:19:36 +0000 | [diff] [blame] | 2880 | if (temp == NULL) |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2881 | goto error; |
Guido van Rossum | 4a0144c | 1998-06-09 15:08:41 +0000 | [diff] [blame] | 2882 | if (!PyString_Check(temp)) { |
| 2883 | PyErr_SetString(PyExc_TypeError, |
| 2884 | "%s argument has non-string str()"); |
| 2885 | goto error; |
| 2886 | } |
Marc-André Lemburg | f28dd83 | 2000-06-30 10:29:57 +0000 | [diff] [blame] | 2887 | pbuf = PyString_AsString(temp); |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 2888 | len = PyString_Size(temp); |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2889 | if (prec >= 0 && len > prec) |
| 2890 | len = prec; |
| 2891 | break; |
| 2892 | case 'i': |
| 2893 | case 'd': |
| 2894 | case 'u': |
| 2895 | case 'o': |
| 2896 | case 'x': |
| 2897 | case 'X': |
| 2898 | if (c == 'i') |
| 2899 | c = 'd'; |
Tim Peters | a3a3a03 | 2000-11-30 05:22:44 +0000 | [diff] [blame] | 2900 | if (PyLong_Check(v)) { |
Tim Peters | 38fd5b6 | 2000-09-21 05:43:11 +0000 | [diff] [blame] | 2901 | temp = _PyString_FormatLong(v, flags, |
| 2902 | prec, c, &pbuf, &len); |
| 2903 | if (!temp) |
| 2904 | goto error; |
| 2905 | /* unbounded ints can always produce |
| 2906 | a sign character! */ |
| 2907 | sign = 1; |
Guido van Rossum | 4acdc23 | 1997-01-29 06:00:24 +0000 | [diff] [blame] | 2908 | } |
Tim Peters | 38fd5b6 | 2000-09-21 05:43:11 +0000 | [diff] [blame] | 2909 | else { |
| 2910 | pbuf = formatbuf; |
| 2911 | len = formatint(pbuf, sizeof(formatbuf), |
| 2912 | flags, prec, c, v); |
| 2913 | if (len < 0) |
| 2914 | goto error; |
| 2915 | /* only d conversion is signed */ |
| 2916 | sign = c == 'd'; |
| 2917 | } |
| 2918 | if (flags & F_ZERO) |
| 2919 | fill = '0'; |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2920 | break; |
| 2921 | case 'e': |
| 2922 | case 'E': |
| 2923 | case 'f': |
| 2924 | case 'g': |
| 2925 | case 'G': |
Marc-André Lemburg | f28dd83 | 2000-06-30 10:29:57 +0000 | [diff] [blame] | 2926 | pbuf = formatbuf; |
| 2927 | len = formatfloat(pbuf, sizeof(formatbuf), flags, prec, c, v); |
Guido van Rossum | a04d47b | 1997-01-21 16:12:09 +0000 | [diff] [blame] | 2928 | if (len < 0) |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2929 | goto error; |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2930 | sign = 1; |
Tim Peters | 38fd5b6 | 2000-09-21 05:43:11 +0000 | [diff] [blame] | 2931 | if (flags & F_ZERO) |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2932 | fill = '0'; |
| 2933 | break; |
| 2934 | case 'c': |
Marc-André Lemburg | f28dd83 | 2000-06-30 10:29:57 +0000 | [diff] [blame] | 2935 | pbuf = formatbuf; |
| 2936 | len = formatchar(pbuf, sizeof(formatbuf), v); |
Guido van Rossum | a04d47b | 1997-01-21 16:12:09 +0000 | [diff] [blame] | 2937 | if (len < 0) |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2938 | goto error; |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2939 | break; |
| 2940 | default: |
Guido van Rossum | 045e688 | 1997-09-08 18:30:11 +0000 | [diff] [blame] | 2941 | PyErr_Format(PyExc_ValueError, |
| 2942 | "unsupported format character '%c' (0x%x)", |
| 2943 | c, c); |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2944 | goto error; |
| 2945 | } |
| 2946 | if (sign) { |
Marc-André Lemburg | f28dd83 | 2000-06-30 10:29:57 +0000 | [diff] [blame] | 2947 | if (*pbuf == '-' || *pbuf == '+') { |
| 2948 | sign = *pbuf++; |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2949 | len--; |
| 2950 | } |
| 2951 | else if (flags & F_SIGN) |
| 2952 | sign = '+'; |
| 2953 | else if (flags & F_BLANK) |
| 2954 | sign = ' '; |
| 2955 | else |
Tim Peters | 38fd5b6 | 2000-09-21 05:43:11 +0000 | [diff] [blame] | 2956 | sign = 0; |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2957 | } |
| 2958 | if (width < len) |
| 2959 | width = len; |
Tim Peters | 38fd5b6 | 2000-09-21 05:43:11 +0000 | [diff] [blame] | 2960 | if (rescnt < width + (sign != 0)) { |
Guido van Rossum | 6ac258d | 1993-05-12 08:24:20 +0000 | [diff] [blame] | 2961 | reslen -= rescnt; |
| 2962 | rescnt = width + fmtcnt + 100; |
| 2963 | reslen += rescnt; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 2964 | if (_PyString_Resize(&result, reslen) < 0) |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2965 | return NULL; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 2966 | res = PyString_AsString(result) |
| 2967 | + reslen - rescnt; |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2968 | } |
| 2969 | if (sign) { |
Guido van Rossum | 71e57d0 | 1993-11-11 15:03:51 +0000 | [diff] [blame] | 2970 | if (fill != ' ') |
| 2971 | *res++ = sign; |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2972 | rescnt--; |
| 2973 | if (width > len) |
| 2974 | width--; |
| 2975 | } |
Tim Peters | 38fd5b6 | 2000-09-21 05:43:11 +0000 | [diff] [blame] | 2976 | if ((flags & F_ALT) && (c == 'x' || c == 'X')) { |
| 2977 | assert(pbuf[0] == '0'); |
| 2978 | assert(pbuf[1] == c); |
| 2979 | if (fill != ' ') { |
| 2980 | *res++ = *pbuf++; |
| 2981 | *res++ = *pbuf++; |
| 2982 | } |
| 2983 | rescnt -= 2; |
| 2984 | width -= 2; |
| 2985 | if (width < 0) |
| 2986 | width = 0; |
| 2987 | len -= 2; |
| 2988 | } |
| 2989 | if (width > len && !(flags & F_LJUST)) { |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 2990 | do { |
| 2991 | --rescnt; |
| 2992 | *res++ = fill; |
| 2993 | } while (--width > len); |
| 2994 | } |
Tim Peters | 38fd5b6 | 2000-09-21 05:43:11 +0000 | [diff] [blame] | 2995 | if (fill == ' ') { |
| 2996 | if (sign) |
| 2997 | *res++ = sign; |
| 2998 | if ((flags & F_ALT) && |
| 2999 | (c == 'x' || c == 'X')) { |
| 3000 | assert(pbuf[0] == '0'); |
| 3001 | assert(pbuf[1] == c); |
| 3002 | *res++ = *pbuf++; |
| 3003 | *res++ = *pbuf++; |
| 3004 | } |
| 3005 | } |
Marc-André Lemburg | f28dd83 | 2000-06-30 10:29:57 +0000 | [diff] [blame] | 3006 | memcpy(res, pbuf, len); |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 3007 | res += len; |
| 3008 | rescnt -= len; |
| 3009 | while (--width >= len) { |
| 3010 | --rescnt; |
| 3011 | *res++ = ' '; |
| 3012 | } |
Guido van Rossum | 9fa2c11 | 1995-02-10 17:00:37 +0000 | [diff] [blame] | 3013 | if (dict && (argidx < arglen) && c != '%') { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 3014 | PyErr_SetString(PyExc_TypeError, |
Guido van Rossum | 013142a | 1994-08-30 08:19:36 +0000 | [diff] [blame] | 3015 | "not all arguments converted"); |
| 3016 | goto error; |
| 3017 | } |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 3018 | Py_XDECREF(temp); |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 3019 | } /* '%' */ |
| 3020 | } /* until end */ |
Guido van Rossum | caeaafc | 1995-02-27 10:13:23 +0000 | [diff] [blame] | 3021 | if (argidx < arglen && !dict) { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 3022 | PyErr_SetString(PyExc_TypeError, |
| 3023 | "not all arguments converted"); |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 3024 | goto error; |
| 3025 | } |
Guido van Rossum | 1109fbc | 1998-04-10 22:16:39 +0000 | [diff] [blame] | 3026 | if (args_owned) { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 3027 | Py_DECREF(args); |
Guido van Rossum | 1109fbc | 1998-04-10 22:16:39 +0000 | [diff] [blame] | 3028 | } |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 3029 | _PyString_Resize(&result, reslen - rescnt); |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 3030 | return result; |
Guido van Rossum | 90daa87 | 2000-04-10 13:47:21 +0000 | [diff] [blame] | 3031 | |
| 3032 | unicode: |
| 3033 | if (args_owned) { |
| 3034 | Py_DECREF(args); |
| 3035 | args_owned = 0; |
| 3036 | } |
| 3037 | /* Fiddle args right (remove the first argidx-1 arguments) */ |
| 3038 | --argidx; |
| 3039 | if (PyTuple_Check(orig_args) && argidx > 0) { |
| 3040 | PyObject *v; |
| 3041 | int n = PyTuple_GET_SIZE(orig_args) - argidx; |
| 3042 | v = PyTuple_New(n); |
| 3043 | if (v == NULL) |
| 3044 | goto error; |
| 3045 | while (--n >= 0) { |
| 3046 | PyObject *w = PyTuple_GET_ITEM(orig_args, n + argidx); |
| 3047 | Py_INCREF(w); |
| 3048 | PyTuple_SET_ITEM(v, n, w); |
| 3049 | } |
| 3050 | args = v; |
| 3051 | } else { |
| 3052 | Py_INCREF(orig_args); |
| 3053 | args = orig_args; |
| 3054 | } |
Marc-André Lemburg | 53f3d4a | 2000-10-07 08:54:09 +0000 | [diff] [blame] | 3055 | args_owned = 1; |
| 3056 | /* Take what we have of the result and let the Unicode formatting |
| 3057 | function format the rest of the input. */ |
Guido van Rossum | 90daa87 | 2000-04-10 13:47:21 +0000 | [diff] [blame] | 3058 | rescnt = res - PyString_AS_STRING(result); |
Marc-André Lemburg | 53f3d4a | 2000-10-07 08:54:09 +0000 | [diff] [blame] | 3059 | if (_PyString_Resize(&result, rescnt)) |
| 3060 | goto error; |
Guido van Rossum | 90daa87 | 2000-04-10 13:47:21 +0000 | [diff] [blame] | 3061 | fmtcnt = PyString_GET_SIZE(format) - \ |
| 3062 | (fmt - PyString_AS_STRING(format)); |
Marc-André Lemburg | 53f3d4a | 2000-10-07 08:54:09 +0000 | [diff] [blame] | 3063 | format = PyUnicode_Decode(fmt, fmtcnt, NULL, NULL); |
| 3064 | if (format == NULL) |
Guido van Rossum | 90daa87 | 2000-04-10 13:47:21 +0000 | [diff] [blame] | 3065 | goto error; |
Marc-André Lemburg | 53f3d4a | 2000-10-07 08:54:09 +0000 | [diff] [blame] | 3066 | v = PyUnicode_Format(format, args); |
Guido van Rossum | 90daa87 | 2000-04-10 13:47:21 +0000 | [diff] [blame] | 3067 | Py_DECREF(format); |
Marc-André Lemburg | 53f3d4a | 2000-10-07 08:54:09 +0000 | [diff] [blame] | 3068 | if (v == NULL) |
| 3069 | goto error; |
| 3070 | /* Paste what we have (result) to what the Unicode formatting |
| 3071 | function returned (v) and return the result (or error) */ |
| 3072 | w = PyUnicode_Concat(result, v); |
| 3073 | Py_DECREF(result); |
| 3074 | Py_DECREF(v); |
Guido van Rossum | 90daa87 | 2000-04-10 13:47:21 +0000 | [diff] [blame] | 3075 | Py_DECREF(args); |
Marc-André Lemburg | 53f3d4a | 2000-10-07 08:54:09 +0000 | [diff] [blame] | 3076 | return w; |
Guido van Rossum | 90daa87 | 2000-04-10 13:47:21 +0000 | [diff] [blame] | 3077 | |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 3078 | error: |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 3079 | Py_DECREF(result); |
Guido van Rossum | 1109fbc | 1998-04-10 22:16:39 +0000 | [diff] [blame] | 3080 | if (args_owned) { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 3081 | Py_DECREF(args); |
Guido van Rossum | 1109fbc | 1998-04-10 22:16:39 +0000 | [diff] [blame] | 3082 | } |
Guido van Rossum | e537240 | 1993-03-16 12:15:04 +0000 | [diff] [blame] | 3083 | return NULL; |
| 3084 | } |
Guido van Rossum | 2a61e74 | 1997-01-18 07:55:05 +0000 | [diff] [blame] | 3085 | |
| 3086 | |
| 3087 | #ifdef INTERN_STRINGS |
| 3088 | |
Barry Warsaw | 4df762f | 2000-08-16 23:41:01 +0000 | [diff] [blame] | 3089 | /* This dictionary will leak at PyString_Fini() time. That's acceptable |
| 3090 | * because PyString_Fini() specifically frees interned strings that are |
| 3091 | * only referenced by this dictionary. The CVS log entry for revision 2.45 |
| 3092 | * says: |
| 3093 | * |
| 3094 | * Change the Fini function to only remove otherwise unreferenced |
| 3095 | * strings from the interned table. There are references in |
| 3096 | * hard-to-find static variables all over the interpreter, and it's not |
| 3097 | * worth trying to get rid of all those; but "uninterning" isn't fair |
| 3098 | * either and may cause subtle failures later -- so we have to keep them |
| 3099 | * in the interned table. |
| 3100 | */ |
Guido van Rossum | 2a61e74 | 1997-01-18 07:55:05 +0000 | [diff] [blame] | 3101 | static PyObject *interned; |
| 3102 | |
| 3103 | void |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame] | 3104 | PyString_InternInPlace(PyObject **p) |
Guido van Rossum | 2a61e74 | 1997-01-18 07:55:05 +0000 | [diff] [blame] | 3105 | { |
| 3106 | register PyStringObject *s = (PyStringObject *)(*p); |
| 3107 | PyObject *t; |
| 3108 | if (s == NULL || !PyString_Check(s)) |
| 3109 | Py_FatalError("PyString_InternInPlace: strings only please!"); |
| 3110 | if ((t = s->ob_sinterned) != NULL) { |
| 3111 | if (t == (PyObject *)s) |
| 3112 | return; |
| 3113 | Py_INCREF(t); |
| 3114 | *p = t; |
| 3115 | Py_DECREF(s); |
| 3116 | return; |
| 3117 | } |
| 3118 | if (interned == NULL) { |
| 3119 | interned = PyDict_New(); |
| 3120 | if (interned == NULL) |
| 3121 | return; |
Guido van Rossum | 2a61e74 | 1997-01-18 07:55:05 +0000 | [diff] [blame] | 3122 | } |
| 3123 | if ((t = PyDict_GetItem(interned, (PyObject *)s)) != NULL) { |
| 3124 | Py_INCREF(t); |
| 3125 | *p = s->ob_sinterned = t; |
| 3126 | Py_DECREF(s); |
| 3127 | return; |
| 3128 | } |
| 3129 | t = (PyObject *)s; |
| 3130 | if (PyDict_SetItem(interned, t, t) == 0) { |
| 3131 | s->ob_sinterned = t; |
| 3132 | return; |
| 3133 | } |
| 3134 | PyErr_Clear(); |
| 3135 | } |
| 3136 | |
| 3137 | |
| 3138 | PyObject * |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame] | 3139 | PyString_InternFromString(const char *cp) |
Guido van Rossum | 2a61e74 | 1997-01-18 07:55:05 +0000 | [diff] [blame] | 3140 | { |
| 3141 | PyObject *s = PyString_FromString(cp); |
| 3142 | if (s == NULL) |
| 3143 | return NULL; |
| 3144 | PyString_InternInPlace(&s); |
| 3145 | return s; |
| 3146 | } |
| 3147 | |
| 3148 | #endif |
Guido van Rossum | 8cf0476 | 1997-08-02 02:57:45 +0000 | [diff] [blame] | 3149 | |
| 3150 | void |
Fred Drake | ba09633 | 2000-07-09 07:04:36 +0000 | [diff] [blame] | 3151 | PyString_Fini(void) |
Guido van Rossum | 8cf0476 | 1997-08-02 02:57:45 +0000 | [diff] [blame] | 3152 | { |
| 3153 | int i; |
Guido van Rossum | 8cf0476 | 1997-08-02 02:57:45 +0000 | [diff] [blame] | 3154 | for (i = 0; i < UCHAR_MAX + 1; i++) { |
| 3155 | Py_XDECREF(characters[i]); |
| 3156 | characters[i] = NULL; |
| 3157 | } |
| 3158 | #ifndef DONT_SHARE_SHORT_STRINGS |
| 3159 | Py_XDECREF(nullstring); |
| 3160 | nullstring = NULL; |
| 3161 | #endif |
Guido van Rossum | 971a7aa | 1997-08-05 02:15:12 +0000 | [diff] [blame] | 3162 | #ifdef INTERN_STRINGS |
| 3163 | if (interned) { |
| 3164 | int pos, changed; |
| 3165 | PyObject *key, *value; |
| 3166 | do { |
| 3167 | changed = 0; |
| 3168 | pos = 0; |
| 3169 | while (PyDict_Next(interned, &pos, &key, &value)) { |
| 3170 | if (key->ob_refcnt == 2 && key == value) { |
| 3171 | PyDict_DelItem(interned, key); |
| 3172 | changed = 1; |
| 3173 | } |
| 3174 | } |
| 3175 | } while (changed); |
| 3176 | } |
| 3177 | #endif |
Guido van Rossum | 8cf0476 | 1997-08-02 02:57:45 +0000 | [diff] [blame] | 3178 | } |