| /* |
| |
| Unicode implementation based on original code by Fredrik Lundh, |
| modified by Marc-Andre Lemburg <mal@lemburg.com> according to the |
| Unicode Integration Proposal (see file Misc/unicode.txt). |
| |
| Major speed upgrades to the method implementations at the Reykjavik |
| NeedForSpeed sprint, by Fredrik Lundh and Andrew Dalke. |
| |
| Copyright (c) Corporation for National Research Initiatives. |
| |
| -------------------------------------------------------------------- |
| The original string type implementation is: |
| |
| Copyright (c) 1999 by Secret Labs AB |
| Copyright (c) 1999 by Fredrik Lundh |
| |
| By obtaining, using, and/or copying this software and/or its |
| associated documentation, you agree that you have read, understood, |
| and will comply with the following terms and conditions: |
| |
| Permission to use, copy, modify, and distribute this software and its |
| associated documentation for any purpose and without fee is hereby |
| granted, provided that the above copyright notice appears in all |
| copies, and that both that copyright notice and this permission notice |
| appear in supporting documentation, and that the name of Secret Labs |
| AB or the author not be used in advertising or publicity pertaining to |
| distribution of the software without specific, written prior |
| permission. |
| |
| SECRET LABS AB AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO |
| THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND |
| FITNESS. IN NO EVENT SHALL SECRET LABS AB OR THE AUTHOR BE LIABLE FOR |
| ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT |
| OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| -------------------------------------------------------------------- |
| |
| */ |
| |
| #define PY_SSIZE_T_CLEAN |
| #include "Python.h" |
| |
| #include "unicodeobject.h" |
| #include "ucnhash.h" |
| |
| #ifdef MS_WINDOWS |
| #include <windows.h> |
| #endif |
| |
| /* Limit for the Unicode object free list */ |
| |
| #define MAX_UNICODE_FREELIST_SIZE 1024 |
| |
| /* Limit for the Unicode object free list stay alive optimization. |
| |
| The implementation will keep allocated Unicode memory intact for |
| all objects on the free list having a size less than this |
| limit. This reduces malloc() overhead for small Unicode objects. |
| |
| At worst this will result in MAX_UNICODE_FREELIST_SIZE * |
| (sizeof(PyUnicodeObject) + KEEPALIVE_SIZE_LIMIT + |
| malloc()-overhead) bytes of unused garbage. |
| |
| Setting the limit to 0 effectively turns the feature off. |
| |
| Note: This is an experimental feature ! If you get core dumps when |
| using Unicode objects, turn this feature off. |
| |
| */ |
| |
| #define KEEPALIVE_SIZE_LIMIT 9 |
| |
| /* Endianness switches; defaults to little endian */ |
| |
| #ifdef WORDS_BIGENDIAN |
| # define BYTEORDER_IS_BIG_ENDIAN |
| #else |
| # define BYTEORDER_IS_LITTLE_ENDIAN |
| #endif |
| |
| /* --- Globals ------------------------------------------------------------ |
| |
| The globals are initialized by the _PyUnicode_Init() API and should |
| not be used before calling that API. |
| |
| */ |
| |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /* Free list for Unicode objects */ |
| static PyUnicodeObject *unicode_freelist; |
| static int unicode_freelist_size; |
| |
| /* The empty Unicode object is shared to improve performance. */ |
| static PyUnicodeObject *unicode_empty; |
| |
| /* Single character Unicode strings in the Latin-1 range are being |
| shared as well. */ |
| static PyUnicodeObject *unicode_latin1[256]; |
| |
| /* Default encoding to use and assume when NULL is passed as encoding |
| parameter; it is initialized by _PyUnicode_Init(). |
| |
| Always use the PyUnicode_SetDefaultEncoding() and |
| PyUnicode_GetDefaultEncoding() APIs to access this global. |
| |
| */ |
| static char unicode_default_encoding[100]; |
| |
| Py_UNICODE |
| PyUnicode_GetMax(void) |
| { |
| #ifdef Py_UNICODE_WIDE |
| return 0x10FFFF; |
| #else |
| /* This is actually an illegal character, so it should |
| not be passed to unichr. */ |
| return 0xFFFF; |
| #endif |
| } |
| |
| /* --- Bloom Filters ----------------------------------------------------- */ |
| |
| /* stuff to implement simple "bloom filters" for Unicode characters. |
| to keep things simple, we use a single bitmask, using the least 5 |
| bits from each unicode characters as the bit index. */ |
| |
| /* the linebreak mask is set up by Unicode_Init below */ |
| |
| #define BLOOM_MASK unsigned long |
| |
| static BLOOM_MASK bloom_linebreak; |
| |
| #define BLOOM(mask, ch) ((mask & (1 << ((ch) & 0x1F)))) |
| |
| #define BLOOM_LINEBREAK(ch)\ |
| (BLOOM(bloom_linebreak, (ch)) && Py_UNICODE_ISLINEBREAK((ch))) |
| |
| Py_LOCAL_INLINE(BLOOM_MASK) make_bloom_mask(Py_UNICODE* ptr, Py_ssize_t len) |
| { |
| /* calculate simple bloom-style bitmask for a given unicode string */ |
| |
| long mask; |
| Py_ssize_t i; |
| |
| mask = 0; |
| for (i = 0; i < len; i++) |
| mask |= (1 << (ptr[i] & 0x1F)); |
| |
| return mask; |
| } |
| |
| Py_LOCAL_INLINE(int) unicode_member(Py_UNICODE chr, Py_UNICODE* set, Py_ssize_t setlen) |
| { |
| Py_ssize_t i; |
| |
| for (i = 0; i < setlen; i++) |
| if (set[i] == chr) |
| return 1; |
| |
| return 0; |
| } |
| |
| #define BLOOM_MEMBER(mask, chr, set, setlen)\ |
| BLOOM(mask, chr) && unicode_member(chr, set, setlen) |
| |
| /* --- Unicode Object ----------------------------------------------------- */ |
| |
| static |
| int unicode_resize(register PyUnicodeObject *unicode, |
| Py_ssize_t length) |
| { |
| void *oldstr; |
| |
| /* Shortcut if there's nothing much to do. */ |
| if (unicode->length == length) |
| goto reset; |
| |
| /* Resizing shared object (unicode_empty or single character |
| objects) in-place is not allowed. Use PyUnicode_Resize() |
| instead ! */ |
| |
| if (unicode == unicode_empty || |
| (unicode->length == 1 && |
| unicode->str[0] < 256U && |
| unicode_latin1[unicode->str[0]] == unicode)) { |
| PyErr_SetString(PyExc_SystemError, |
| "can't resize shared unicode objects"); |
| return -1; |
| } |
| |
| /* We allocate one more byte to make sure the string is Ux0000 terminated. |
| The overallocation is also used by fastsearch, which assumes that it's |
| safe to look at str[length] (without making any assumptions about what |
| it contains). */ |
| |
| oldstr = unicode->str; |
| PyMem_RESIZE(unicode->str, Py_UNICODE, length + 1); |
| if (!unicode->str) { |
| unicode->str = (Py_UNICODE *)oldstr; |
| PyErr_NoMemory(); |
| return -1; |
| } |
| unicode->str[length] = 0; |
| unicode->length = length; |
| |
| reset: |
| /* Reset the object caches */ |
| if (unicode->defenc) { |
| Py_DECREF(unicode->defenc); |
| unicode->defenc = NULL; |
| } |
| unicode->hash = -1; |
| |
| return 0; |
| } |
| |
| /* We allocate one more byte to make sure the string is |
| Ux0000 terminated -- XXX is this needed ? |
| |
| XXX This allocator could further be enhanced by assuring that the |
| free list never reduces its size below 1. |
| |
| */ |
| |
| static |
| PyUnicodeObject *_PyUnicode_New(Py_ssize_t length) |
| { |
| register PyUnicodeObject *unicode; |
| |
| /* Optimization for empty strings */ |
| if (length == 0 && unicode_empty != NULL) { |
| Py_INCREF(unicode_empty); |
| return unicode_empty; |
| } |
| |
| /* Unicode freelist & memory allocation */ |
| if (unicode_freelist) { |
| unicode = unicode_freelist; |
| unicode_freelist = *(PyUnicodeObject **)unicode; |
| unicode_freelist_size--; |
| if (unicode->str) { |
| /* Keep-Alive optimization: we only upsize the buffer, |
| never downsize it. */ |
| if ((unicode->length < length) && |
| unicode_resize(unicode, length) < 0) { |
| PyMem_DEL(unicode->str); |
| goto onError; |
| } |
| } |
| else { |
| unicode->str = PyMem_NEW(Py_UNICODE, length + 1); |
| } |
| PyObject_INIT(unicode, &PyUnicode_Type); |
| } |
| else { |
| unicode = PyObject_New(PyUnicodeObject, &PyUnicode_Type); |
| if (unicode == NULL) |
| return NULL; |
| unicode->str = PyMem_NEW(Py_UNICODE, length + 1); |
| } |
| |
| if (!unicode->str) { |
| PyErr_NoMemory(); |
| goto onError; |
| } |
| /* Initialize the first element to guard against cases where |
| * the caller fails before initializing str -- unicode_resize() |
| * reads str[0], and the Keep-Alive optimization can keep memory |
| * allocated for str alive across a call to unicode_dealloc(unicode). |
| * We don't want unicode_resize to read uninitialized memory in |
| * that case. |
| */ |
| unicode->str[0] = 0; |
| unicode->str[length] = 0; |
| unicode->length = length; |
| unicode->hash = -1; |
| unicode->defenc = NULL; |
| return unicode; |
| |
| onError: |
| _Py_ForgetReference((PyObject *)unicode); |
| PyObject_Del(unicode); |
| return NULL; |
| } |
| |
| static |
| void unicode_dealloc(register PyUnicodeObject *unicode) |
| { |
| if (PyUnicode_CheckExact(unicode) && |
| unicode_freelist_size < MAX_UNICODE_FREELIST_SIZE) { |
| /* Keep-Alive optimization */ |
| if (unicode->length >= KEEPALIVE_SIZE_LIMIT) { |
| PyMem_DEL(unicode->str); |
| unicode->str = NULL; |
| unicode->length = 0; |
| } |
| if (unicode->defenc) { |
| Py_DECREF(unicode->defenc); |
| unicode->defenc = NULL; |
| } |
| /* Add to free list */ |
| *(PyUnicodeObject **)unicode = unicode_freelist; |
| unicode_freelist = unicode; |
| unicode_freelist_size++; |
| } |
| else { |
| PyMem_DEL(unicode->str); |
| Py_XDECREF(unicode->defenc); |
| unicode->ob_type->tp_free((PyObject *)unicode); |
| } |
| } |
| |
| int PyUnicode_Resize(PyObject **unicode, Py_ssize_t length) |
| { |
| register PyUnicodeObject *v; |
| |
| /* Argument checks */ |
| if (unicode == NULL) { |
| PyErr_BadInternalCall(); |
| return -1; |
| } |
| v = (PyUnicodeObject *)*unicode; |
| if (v == NULL || !PyUnicode_Check(v) || v->ob_refcnt != 1 || length < 0) { |
| PyErr_BadInternalCall(); |
| return -1; |
| } |
| |
| /* Resizing unicode_empty and single character objects is not |
| possible since these are being shared. We simply return a fresh |
| copy with the same Unicode content. */ |
| if (v->length != length && |
| (v == unicode_empty || v->length == 1)) { |
| PyUnicodeObject *w = _PyUnicode_New(length); |
| if (w == NULL) |
| return -1; |
| Py_UNICODE_COPY(w->str, v->str, |
| length < v->length ? length : v->length); |
| Py_DECREF(*unicode); |
| *unicode = (PyObject *)w; |
| return 0; |
| } |
| |
| /* Note that we don't have to modify *unicode for unshared Unicode |
| objects, since we can modify them in-place. */ |
| return unicode_resize(v, length); |
| } |
| |
| /* Internal API for use in unicodeobject.c only ! */ |
| #define _PyUnicode_Resize(unicodevar, length) \ |
| PyUnicode_Resize(((PyObject **)(unicodevar)), length) |
| |
| PyObject *PyUnicode_FromUnicode(const Py_UNICODE *u, |
| Py_ssize_t size) |
| { |
| PyUnicodeObject *unicode; |
| |
| /* If the Unicode data is known at construction time, we can apply |
| some optimizations which share commonly used objects. */ |
| if (u != NULL) { |
| |
| /* Optimization for empty strings */ |
| if (size == 0 && unicode_empty != NULL) { |
| Py_INCREF(unicode_empty); |
| return (PyObject *)unicode_empty; |
| } |
| |
| /* Single character Unicode objects in the Latin-1 range are |
| shared when using this constructor */ |
| if (size == 1 && *u < 256) { |
| unicode = unicode_latin1[*u]; |
| if (!unicode) { |
| unicode = _PyUnicode_New(1); |
| if (!unicode) |
| return NULL; |
| unicode->str[0] = *u; |
| unicode_latin1[*u] = unicode; |
| } |
| Py_INCREF(unicode); |
| return (PyObject *)unicode; |
| } |
| } |
| |
| unicode = _PyUnicode_New(size); |
| if (!unicode) |
| return NULL; |
| |
| /* Copy the Unicode data into the new object */ |
| if (u != NULL) |
| Py_UNICODE_COPY(unicode->str, u, size); |
| |
| return (PyObject *)unicode; |
| } |
| |
| #ifdef HAVE_WCHAR_H |
| |
| PyObject *PyUnicode_FromWideChar(register const wchar_t *w, |
| Py_ssize_t size) |
| { |
| PyUnicodeObject *unicode; |
| |
| if (w == NULL) { |
| PyErr_BadInternalCall(); |
| return NULL; |
| } |
| |
| unicode = _PyUnicode_New(size); |
| if (!unicode) |
| return NULL; |
| |
| /* Copy the wchar_t data into the new object */ |
| #ifdef HAVE_USABLE_WCHAR_T |
| memcpy(unicode->str, w, size * sizeof(wchar_t)); |
| #else |
| { |
| register Py_UNICODE *u; |
| register Py_ssize_t i; |
| u = PyUnicode_AS_UNICODE(unicode); |
| for (i = size; i > 0; i--) |
| *u++ = *w++; |
| } |
| #endif |
| |
| return (PyObject *)unicode; |
| } |
| |
| Py_ssize_t PyUnicode_AsWideChar(PyUnicodeObject *unicode, |
| wchar_t *w, |
| Py_ssize_t size) |
| { |
| if (unicode == NULL) { |
| PyErr_BadInternalCall(); |
| return -1; |
| } |
| |
| /* If possible, try to copy the 0-termination as well */ |
| if (size > PyUnicode_GET_SIZE(unicode)) |
| size = PyUnicode_GET_SIZE(unicode) + 1; |
| |
| #ifdef HAVE_USABLE_WCHAR_T |
| memcpy(w, unicode->str, size * sizeof(wchar_t)); |
| #else |
| { |
| register Py_UNICODE *u; |
| register Py_ssize_t i; |
| u = PyUnicode_AS_UNICODE(unicode); |
| for (i = size; i > 0; i--) |
| *w++ = *u++; |
| } |
| #endif |
| |
| if (size > PyUnicode_GET_SIZE(unicode)) |
| return PyUnicode_GET_SIZE(unicode); |
| else |
| return size; |
| } |
| |
| #endif |
| |
| PyObject *PyUnicode_FromOrdinal(int ordinal) |
| { |
| Py_UNICODE s[1]; |
| |
| #ifdef Py_UNICODE_WIDE |
| if (ordinal < 0 || ordinal > 0x10ffff) { |
| PyErr_SetString(PyExc_ValueError, |
| "unichr() arg not in range(0x110000) " |
| "(wide Python build)"); |
| return NULL; |
| } |
| #else |
| if (ordinal < 0 || ordinal > 0xffff) { |
| PyErr_SetString(PyExc_ValueError, |
| "unichr() arg not in range(0x10000) " |
| "(narrow Python build)"); |
| return NULL; |
| } |
| #endif |
| |
| s[0] = (Py_UNICODE)ordinal; |
| return PyUnicode_FromUnicode(s, 1); |
| } |
| |
| PyObject *PyUnicode_FromObject(register PyObject *obj) |
| { |
| /* XXX Perhaps we should make this API an alias of |
| PyObject_Unicode() instead ?! */ |
| if (PyUnicode_CheckExact(obj)) { |
| Py_INCREF(obj); |
| return obj; |
| } |
| if (PyUnicode_Check(obj)) { |
| /* For a Unicode subtype that's not a Unicode object, |
| return a true Unicode object with the same data. */ |
| return PyUnicode_FromUnicode(PyUnicode_AS_UNICODE(obj), |
| PyUnicode_GET_SIZE(obj)); |
| } |
| return PyUnicode_FromEncodedObject(obj, NULL, "strict"); |
| } |
| |
| PyObject *PyUnicode_FromEncodedObject(register PyObject *obj, |
| const char *encoding, |
| const char *errors) |
| { |
| const char *s = NULL; |
| Py_ssize_t len; |
| PyObject *v; |
| |
| if (obj == NULL) { |
| PyErr_BadInternalCall(); |
| return NULL; |
| } |
| |
| #if 0 |
| /* For b/w compatibility we also accept Unicode objects provided |
| that no encodings is given and then redirect to |
| PyObject_Unicode() which then applies the additional logic for |
| Unicode subclasses. |
| |
| NOTE: This API should really only be used for object which |
| represent *encoded* Unicode ! |
| |
| */ |
| if (PyUnicode_Check(obj)) { |
| if (encoding) { |
| PyErr_SetString(PyExc_TypeError, |
| "decoding Unicode is not supported"); |
| return NULL; |
| } |
| return PyObject_Unicode(obj); |
| } |
| #else |
| if (PyUnicode_Check(obj)) { |
| PyErr_SetString(PyExc_TypeError, |
| "decoding Unicode is not supported"); |
| return NULL; |
| } |
| #endif |
| |
| /* Coerce object */ |
| if (PyString_Check(obj)) { |
| s = PyString_AS_STRING(obj); |
| len = PyString_GET_SIZE(obj); |
| } |
| else if (PyObject_AsCharBuffer(obj, &s, &len)) { |
| /* Overwrite the error message with something more useful in |
| case of a TypeError. */ |
| if (PyErr_ExceptionMatches(PyExc_TypeError)) |
| PyErr_Format(PyExc_TypeError, |
| "coercing to Unicode: need string or buffer, " |
| "%.80s found", |
| obj->ob_type->tp_name); |
| goto onError; |
| } |
| |
| /* Convert to Unicode */ |
| if (len == 0) { |
| Py_INCREF(unicode_empty); |
| v = (PyObject *)unicode_empty; |
| } |
| else |
| v = PyUnicode_Decode(s, len, encoding, errors); |
| |
| return v; |
| |
| onError: |
| return NULL; |
| } |
| |
| PyObject *PyUnicode_Decode(const char *s, |
| Py_ssize_t size, |
| const char *encoding, |
| const char *errors) |
| { |
| PyObject *buffer = NULL, *unicode; |
| |
| if (encoding == NULL) |
| encoding = PyUnicode_GetDefaultEncoding(); |
| |
| /* Shortcuts for common default encodings */ |
| if (strcmp(encoding, "utf-8") == 0) |
| return PyUnicode_DecodeUTF8(s, size, errors); |
| else if (strcmp(encoding, "latin-1") == 0) |
| return PyUnicode_DecodeLatin1(s, size, errors); |
| #if defined(MS_WINDOWS) && defined(HAVE_USABLE_WCHAR_T) |
| else if (strcmp(encoding, "mbcs") == 0) |
| return PyUnicode_DecodeMBCS(s, size, errors); |
| #endif |
| else if (strcmp(encoding, "ascii") == 0) |
| return PyUnicode_DecodeASCII(s, size, errors); |
| |
| /* Decode via the codec registry */ |
| buffer = PyBuffer_FromMemory((void *)s, size); |
| if (buffer == NULL) |
| goto onError; |
| unicode = PyCodec_Decode(buffer, encoding, errors); |
| if (unicode == NULL) |
| goto onError; |
| if (!PyUnicode_Check(unicode)) { |
| PyErr_Format(PyExc_TypeError, |
| "decoder did not return an unicode object (type=%.400s)", |
| unicode->ob_type->tp_name); |
| Py_DECREF(unicode); |
| goto onError; |
| } |
| Py_DECREF(buffer); |
| return unicode; |
| |
| onError: |
| Py_XDECREF(buffer); |
| return NULL; |
| } |
| |
| PyObject *PyUnicode_AsDecodedObject(PyObject *unicode, |
| const char *encoding, |
| const char *errors) |
| { |
| PyObject *v; |
| |
| if (!PyUnicode_Check(unicode)) { |
| PyErr_BadArgument(); |
| goto onError; |
| } |
| |
| if (encoding == NULL) |
| encoding = PyUnicode_GetDefaultEncoding(); |
| |
| /* Decode via the codec registry */ |
| v = PyCodec_Decode(unicode, encoding, errors); |
| if (v == NULL) |
| goto onError; |
| return v; |
| |
| onError: |
| return NULL; |
| } |
| |
| PyObject *PyUnicode_Encode(const Py_UNICODE *s, |
| Py_ssize_t size, |
| const char *encoding, |
| const char *errors) |
| { |
| PyObject *v, *unicode; |
| |
| unicode = PyUnicode_FromUnicode(s, size); |
| if (unicode == NULL) |
| return NULL; |
| v = PyUnicode_AsEncodedString(unicode, encoding, errors); |
| Py_DECREF(unicode); |
| return v; |
| } |
| |
| PyObject *PyUnicode_AsEncodedObject(PyObject *unicode, |
| const char *encoding, |
| const char *errors) |
| { |
| PyObject *v; |
| |
| if (!PyUnicode_Check(unicode)) { |
| PyErr_BadArgument(); |
| goto onError; |
| } |
| |
| if (encoding == NULL) |
| encoding = PyUnicode_GetDefaultEncoding(); |
| |
| /* Encode via the codec registry */ |
| v = PyCodec_Encode(unicode, encoding, errors); |
| if (v == NULL) |
| goto onError; |
| return v; |
| |
| onError: |
| return NULL; |
| } |
| |
| PyObject *PyUnicode_AsEncodedString(PyObject *unicode, |
| const char *encoding, |
| const char *errors) |
| { |
| PyObject *v; |
| |
| if (!PyUnicode_Check(unicode)) { |
| PyErr_BadArgument(); |
| goto onError; |
| } |
| |
| if (encoding == NULL) |
| encoding = PyUnicode_GetDefaultEncoding(); |
| |
| /* Shortcuts for common default encodings */ |
| if (errors == NULL) { |
| if (strcmp(encoding, "utf-8") == 0) |
| return PyUnicode_AsUTF8String(unicode); |
| else if (strcmp(encoding, "latin-1") == 0) |
| return PyUnicode_AsLatin1String(unicode); |
| #if defined(MS_WINDOWS) && defined(HAVE_USABLE_WCHAR_T) |
| else if (strcmp(encoding, "mbcs") == 0) |
| return PyUnicode_AsMBCSString(unicode); |
| #endif |
| else if (strcmp(encoding, "ascii") == 0) |
| return PyUnicode_AsASCIIString(unicode); |
| } |
| |
| /* Encode via the codec registry */ |
| v = PyCodec_Encode(unicode, encoding, errors); |
| if (v == NULL) |
| goto onError; |
| if (!PyString_Check(v)) { |
| PyErr_Format(PyExc_TypeError, |
| "encoder did not return a string object (type=%.400s)", |
| v->ob_type->tp_name); |
| Py_DECREF(v); |
| goto onError; |
| } |
| return v; |
| |
| onError: |
| return NULL; |
| } |
| |
| PyObject *_PyUnicode_AsDefaultEncodedString(PyObject *unicode, |
| const char *errors) |
| { |
| PyObject *v = ((PyUnicodeObject *)unicode)->defenc; |
| |
| if (v) |
| return v; |
| v = PyUnicode_AsEncodedString(unicode, NULL, errors); |
| if (v && errors == NULL) |
| ((PyUnicodeObject *)unicode)->defenc = v; |
| return v; |
| } |
| |
| Py_UNICODE *PyUnicode_AsUnicode(PyObject *unicode) |
| { |
| if (!PyUnicode_Check(unicode)) { |
| PyErr_BadArgument(); |
| goto onError; |
| } |
| return PyUnicode_AS_UNICODE(unicode); |
| |
| onError: |
| return NULL; |
| } |
| |
| Py_ssize_t PyUnicode_GetSize(PyObject *unicode) |
| { |
| if (!PyUnicode_Check(unicode)) { |
| PyErr_BadArgument(); |
| goto onError; |
| } |
| return PyUnicode_GET_SIZE(unicode); |
| |
| onError: |
| return -1; |
| } |
| |
| const char *PyUnicode_GetDefaultEncoding(void) |
| { |
| return unicode_default_encoding; |
| } |
| |
| int PyUnicode_SetDefaultEncoding(const char *encoding) |
| { |
| PyObject *v; |
| |
| /* Make sure the encoding is valid. As side effect, this also |
| loads the encoding into the codec registry cache. */ |
| v = _PyCodec_Lookup(encoding); |
| if (v == NULL) |
| goto onError; |
| Py_DECREF(v); |
| strncpy(unicode_default_encoding, |
| encoding, |
| sizeof(unicode_default_encoding)); |
| return 0; |
| |
| onError: |
| return -1; |
| } |
| |
| /* error handling callback helper: |
| build arguments, call the callback and check the arguments, |
| if no exception occurred, copy the replacement to the output |
| and adjust various state variables. |
| return 0 on success, -1 on error |
| */ |
| |
| static |
| int unicode_decode_call_errorhandler(const char *errors, PyObject **errorHandler, |
| const char *encoding, const char *reason, |
| const char *input, Py_ssize_t insize, Py_ssize_t *startinpos, Py_ssize_t *endinpos, PyObject **exceptionObject, const char **inptr, |
| PyObject **output, Py_ssize_t *outpos, Py_UNICODE **outptr) |
| { |
| static char *argparse = "O!n;decoding error handler must return (unicode, int) tuple"; |
| |
| PyObject *restuple = NULL; |
| PyObject *repunicode = NULL; |
| Py_ssize_t outsize = PyUnicode_GET_SIZE(*output); |
| Py_ssize_t requiredsize; |
| Py_ssize_t newpos; |
| Py_UNICODE *repptr; |
| Py_ssize_t repsize; |
| int res = -1; |
| |
| if (*errorHandler == NULL) { |
| *errorHandler = PyCodec_LookupError(errors); |
| if (*errorHandler == NULL) |
| goto onError; |
| } |
| |
| if (*exceptionObject == NULL) { |
| *exceptionObject = PyUnicodeDecodeError_Create( |
| encoding, input, insize, *startinpos, *endinpos, reason); |
| if (*exceptionObject == NULL) |
| goto onError; |
| } |
| else { |
| if (PyUnicodeDecodeError_SetStart(*exceptionObject, *startinpos)) |
| goto onError; |
| if (PyUnicodeDecodeError_SetEnd(*exceptionObject, *endinpos)) |
| goto onError; |
| if (PyUnicodeDecodeError_SetReason(*exceptionObject, reason)) |
| goto onError; |
| } |
| |
| restuple = PyObject_CallFunctionObjArgs(*errorHandler, *exceptionObject, NULL); |
| if (restuple == NULL) |
| goto onError; |
| if (!PyTuple_Check(restuple)) { |
| PyErr_Format(PyExc_TypeError, &argparse[4]); |
| goto onError; |
| } |
| if (!PyArg_ParseTuple(restuple, argparse, &PyUnicode_Type, &repunicode, &newpos)) |
| goto onError; |
| if (newpos<0) |
| newpos = insize+newpos; |
| if (newpos<0 || newpos>insize) { |
| PyErr_Format(PyExc_IndexError, "position %zd from error handler out of bounds", newpos); |
| goto onError; |
| } |
| |
| /* need more space? (at least enough for what we |
| have+the replacement+the rest of the string (starting |
| at the new input position), so we won't have to check space |
| when there are no errors in the rest of the string) */ |
| repptr = PyUnicode_AS_UNICODE(repunicode); |
| repsize = PyUnicode_GET_SIZE(repunicode); |
| requiredsize = *outpos + repsize + insize-newpos; |
| if (requiredsize > outsize) { |
| if (requiredsize<2*outsize) |
| requiredsize = 2*outsize; |
| if (PyUnicode_Resize(output, requiredsize) < 0) |
| goto onError; |
| *outptr = PyUnicode_AS_UNICODE(*output) + *outpos; |
| } |
| *endinpos = newpos; |
| *inptr = input + newpos; |
| Py_UNICODE_COPY(*outptr, repptr, repsize); |
| *outptr += repsize; |
| *outpos += repsize; |
| /* we made it! */ |
| res = 0; |
| |
| onError: |
| Py_XDECREF(restuple); |
| return res; |
| } |
| |
| /* --- UTF-7 Codec -------------------------------------------------------- */ |
| |
| /* see RFC2152 for details */ |
| |
| static |
| char utf7_special[128] = { |
| /* indicate whether a UTF-7 character is special i.e. cannot be directly |
| encoded: |
| 0 - not special |
| 1 - special |
| 2 - whitespace (optional) |
| 3 - RFC2152 Set O (optional) */ |
| 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 1, 1, 2, 1, 1, |
| 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 2, 3, 3, 3, 3, 3, 3, 0, 0, 0, 3, 1, 0, 0, 0, 1, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 3, 3, 3, 0, |
| 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 1, 3, 3, 3, |
| 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 3, 3, 1, 1, |
| |
| }; |
| |
| /* Note: The comparison (c) <= 0 is a trick to work-around gcc |
| warnings about the comparison always being false; since |
| utf7_special[0] is 1, we can safely make that one comparison |
| true */ |
| |
| #define SPECIAL(c, encodeO, encodeWS) \ |
| ((c) > 127 || (c) <= 0 || utf7_special[(c)] == 1 || \ |
| (encodeWS && (utf7_special[(c)] == 2)) || \ |
| (encodeO && (utf7_special[(c)] == 3))) |
| |
| #define B64(n) \ |
| ("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"[(n) & 0x3f]) |
| #define B64CHAR(c) \ |
| (isalnum(c) || (c) == '+' || (c) == '/') |
| #define UB64(c) \ |
| ((c) == '+' ? 62 : (c) == '/' ? 63 : (c) >= 'a' ? \ |
| (c) - 71 : (c) >= 'A' ? (c) - 65 : (c) + 4 ) |
| |
| #define ENCODE(out, ch, bits) \ |
| while (bits >= 6) { \ |
| *out++ = B64(ch >> (bits-6)); \ |
| bits -= 6; \ |
| } |
| |
| #define DECODE(out, ch, bits, surrogate) \ |
| while (bits >= 16) { \ |
| Py_UNICODE outCh = (Py_UNICODE) ((ch >> (bits-16)) & 0xffff); \ |
| bits -= 16; \ |
| if (surrogate) { \ |
| /* We have already generated an error for the high surrogate \ |
| so let's not bother seeing if the low surrogate is correct or not */ \ |
| surrogate = 0; \ |
| } else if (0xDC00 <= outCh && outCh <= 0xDFFF) { \ |
| /* This is a surrogate pair. Unfortunately we can't represent \ |
| it in a 16-bit character */ \ |
| surrogate = 1; \ |
| errmsg = "code pairs are not supported"; \ |
| goto utf7Error; \ |
| } else { \ |
| *out++ = outCh; \ |
| } \ |
| } |
| |
| PyObject *PyUnicode_DecodeUTF7(const char *s, |
| Py_ssize_t size, |
| const char *errors) |
| { |
| const char *starts = s; |
| Py_ssize_t startinpos; |
| Py_ssize_t endinpos; |
| Py_ssize_t outpos; |
| const char *e; |
| PyUnicodeObject *unicode; |
| Py_UNICODE *p; |
| const char *errmsg = ""; |
| int inShift = 0; |
| unsigned int bitsleft = 0; |
| unsigned long charsleft = 0; |
| int surrogate = 0; |
| PyObject *errorHandler = NULL; |
| PyObject *exc = NULL; |
| |
| unicode = _PyUnicode_New(size); |
| if (!unicode) |
| return NULL; |
| if (size == 0) |
| return (PyObject *)unicode; |
| |
| p = unicode->str; |
| e = s + size; |
| |
| while (s < e) { |
| Py_UNICODE ch; |
| restart: |
| ch = *s; |
| |
| if (inShift) { |
| if ((ch == '-') || !B64CHAR(ch)) { |
| inShift = 0; |
| s++; |
| |
| /* p, charsleft, bitsleft, surrogate = */ DECODE(p, charsleft, bitsleft, surrogate); |
| if (bitsleft >= 6) { |
| /* The shift sequence has a partial character in it. If |
| bitsleft < 6 then we could just classify it as padding |
| but that is not the case here */ |
| |
| errmsg = "partial character in shift sequence"; |
| goto utf7Error; |
| } |
| /* According to RFC2152 the remaining bits should be zero. We |
| choose to signal an error/insert a replacement character |
| here so indicate the potential of a misencoded character. */ |
| |
| /* On x86, a << b == a << (b%32) so make sure that bitsleft != 0 */ |
| if (bitsleft && charsleft << (sizeof(charsleft) * 8 - bitsleft)) { |
| errmsg = "non-zero padding bits in shift sequence"; |
| goto utf7Error; |
| } |
| |
| if (ch == '-') { |
| if ((s < e) && (*(s) == '-')) { |
| *p++ = '-'; |
| inShift = 1; |
| } |
| } else if (SPECIAL(ch,0,0)) { |
| errmsg = "unexpected special character"; |
| goto utf7Error; |
| } else { |
| *p++ = ch; |
| } |
| } else { |
| charsleft = (charsleft << 6) | UB64(ch); |
| bitsleft += 6; |
| s++; |
| /* p, charsleft, bitsleft, surrogate = */ DECODE(p, charsleft, bitsleft, surrogate); |
| } |
| } |
| else if ( ch == '+' ) { |
| startinpos = s-starts; |
| s++; |
| if (s < e && *s == '-') { |
| s++; |
| *p++ = '+'; |
| } else |
| { |
| inShift = 1; |
| bitsleft = 0; |
| } |
| } |
| else if (SPECIAL(ch,0,0)) { |
| errmsg = "unexpected special character"; |
| s++; |
| goto utf7Error; |
| } |
| else { |
| *p++ = ch; |
| s++; |
| } |
| continue; |
| utf7Error: |
| outpos = p-PyUnicode_AS_UNICODE(unicode); |
| endinpos = s-starts; |
| if (unicode_decode_call_errorhandler( |
| errors, &errorHandler, |
| "utf7", errmsg, |
| starts, size, &startinpos, &endinpos, &exc, &s, |
| (PyObject **)&unicode, &outpos, &p)) |
| goto onError; |
| } |
| |
| if (inShift) { |
| outpos = p-PyUnicode_AS_UNICODE(unicode); |
| endinpos = size; |
| if (unicode_decode_call_errorhandler( |
| errors, &errorHandler, |
| "utf7", "unterminated shift sequence", |
| starts, size, &startinpos, &endinpos, &exc, &s, |
| (PyObject **)&unicode, &outpos, &p)) |
| goto onError; |
| if (s < e) |
| goto restart; |
| } |
| |
| if (_PyUnicode_Resize(&unicode, p - PyUnicode_AS_UNICODE(unicode)) < 0) |
| goto onError; |
| |
| Py_XDECREF(errorHandler); |
| Py_XDECREF(exc); |
| return (PyObject *)unicode; |
| |
| onError: |
| Py_XDECREF(errorHandler); |
| Py_XDECREF(exc); |
| Py_DECREF(unicode); |
| return NULL; |
| } |
| |
| |
| PyObject *PyUnicode_EncodeUTF7(const Py_UNICODE *s, |
| Py_ssize_t size, |
| int encodeSetO, |
| int encodeWhiteSpace, |
| const char *errors) |
| { |
| PyObject *v; |
| /* It might be possible to tighten this worst case */ |
| Py_ssize_t cbAllocated = 5 * size; |
| int inShift = 0; |
| Py_ssize_t i = 0; |
| unsigned int bitsleft = 0; |
| unsigned long charsleft = 0; |
| char * out; |
| char * start; |
| |
| if (size == 0) |
| return PyString_FromStringAndSize(NULL, 0); |
| |
| v = PyString_FromStringAndSize(NULL, cbAllocated); |
| if (v == NULL) |
| return NULL; |
| |
| start = out = PyString_AS_STRING(v); |
| for (;i < size; ++i) { |
| Py_UNICODE ch = s[i]; |
| |
| if (!inShift) { |
| if (ch == '+') { |
| *out++ = '+'; |
| *out++ = '-'; |
| } else if (SPECIAL(ch, encodeSetO, encodeWhiteSpace)) { |
| charsleft = ch; |
| bitsleft = 16; |
| *out++ = '+'; |
| /* out, charsleft, bitsleft = */ ENCODE(out, charsleft, bitsleft); |
| inShift = bitsleft > 0; |
| } else { |
| *out++ = (char) ch; |
| } |
| } else { |
| if (!SPECIAL(ch, encodeSetO, encodeWhiteSpace)) { |
| *out++ = B64(charsleft << (6-bitsleft)); |
| charsleft = 0; |
| bitsleft = 0; |
| /* Characters not in the BASE64 set implicitly unshift the sequence |
| so no '-' is required, except if the character is itself a '-' */ |
| if (B64CHAR(ch) || ch == '-') { |
| *out++ = '-'; |
| } |
| inShift = 0; |
| *out++ = (char) ch; |
| } else { |
| bitsleft += 16; |
| charsleft = (charsleft << 16) | ch; |
| /* out, charsleft, bitsleft = */ ENCODE(out, charsleft, bitsleft); |
| |
| /* If the next character is special then we dont' need to terminate |
| the shift sequence. If the next character is not a BASE64 character |
| or '-' then the shift sequence will be terminated implicitly and we |
| don't have to insert a '-'. */ |
| |
| if (bitsleft == 0) { |
| if (i + 1 < size) { |
| Py_UNICODE ch2 = s[i+1]; |
| |
| if (SPECIAL(ch2, encodeSetO, encodeWhiteSpace)) { |
| |
| } else if (B64CHAR(ch2) || ch2 == '-') { |
| *out++ = '-'; |
| inShift = 0; |
| } else { |
| inShift = 0; |
| } |
| |
| } |
| else { |
| *out++ = '-'; |
| inShift = 0; |
| } |
| } |
| } |
| } |
| } |
| if (bitsleft) { |
| *out++= B64(charsleft << (6-bitsleft) ); |
| *out++ = '-'; |
| } |
| |
| _PyString_Resize(&v, out - start); |
| return v; |
| } |
| |
| #undef SPECIAL |
| #undef B64 |
| #undef B64CHAR |
| #undef UB64 |
| #undef ENCODE |
| #undef DECODE |
| |
| /* --- UTF-8 Codec -------------------------------------------------------- */ |
| |
| static |
| char utf8_code_length[256] = { |
| /* Map UTF-8 encoded prefix byte to sequence length. zero means |
| illegal prefix. see RFC 2279 for details */ |
| 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, |
| 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, |
| 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, |
| 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 6, 6, 0, 0 |
| }; |
| |
| PyObject *PyUnicode_DecodeUTF8(const char *s, |
| Py_ssize_t size, |
| const char *errors) |
| { |
| return PyUnicode_DecodeUTF8Stateful(s, size, errors, NULL); |
| } |
| |
| PyObject *PyUnicode_DecodeUTF8Stateful(const char *s, |
| Py_ssize_t size, |
| const char *errors, |
| Py_ssize_t *consumed) |
| { |
| const char *starts = s; |
| int n; |
| Py_ssize_t startinpos; |
| Py_ssize_t endinpos; |
| Py_ssize_t outpos; |
| const char *e; |
| PyUnicodeObject *unicode; |
| Py_UNICODE *p; |
| const char *errmsg = ""; |
| PyObject *errorHandler = NULL; |
| PyObject *exc = NULL; |
| |
| /* Note: size will always be longer than the resulting Unicode |
| character count */ |
| unicode = _PyUnicode_New(size); |
| if (!unicode) |
| return NULL; |
| if (size == 0) { |
| if (consumed) |
| *consumed = 0; |
| return (PyObject *)unicode; |
| } |
| |
| /* Unpack UTF-8 encoded data */ |
| p = unicode->str; |
| e = s + size; |
| |
| while (s < e) { |
| Py_UCS4 ch = (unsigned char)*s; |
| |
| if (ch < 0x80) { |
| *p++ = (Py_UNICODE)ch; |
| s++; |
| continue; |
| } |
| |
| n = utf8_code_length[ch]; |
| |
| if (s + n > e) { |
| if (consumed) |
| break; |
| else { |
| errmsg = "unexpected end of data"; |
| startinpos = s-starts; |
| endinpos = size; |
| goto utf8Error; |
| } |
| } |
| |
| switch (n) { |
| |
| case 0: |
| errmsg = "unexpected code byte"; |
| startinpos = s-starts; |
| endinpos = startinpos+1; |
| goto utf8Error; |
| |
| case 1: |
| errmsg = "internal error"; |
| startinpos = s-starts; |
| endinpos = startinpos+1; |
| goto utf8Error; |
| |
| case 2: |
| if ((s[1] & 0xc0) != 0x80) { |
| errmsg = "invalid data"; |
| startinpos = s-starts; |
| endinpos = startinpos+2; |
| goto utf8Error; |
| } |
| ch = ((s[0] & 0x1f) << 6) + (s[1] & 0x3f); |
| if (ch < 0x80) { |
| startinpos = s-starts; |
| endinpos = startinpos+2; |
| errmsg = "illegal encoding"; |
| goto utf8Error; |
| } |
| else |
| *p++ = (Py_UNICODE)ch; |
| break; |
| |
| case 3: |
| if ((s[1] & 0xc0) != 0x80 || |
| (s[2] & 0xc0) != 0x80) { |
| errmsg = "invalid data"; |
| startinpos = s-starts; |
| endinpos = startinpos+3; |
| goto utf8Error; |
| } |
| ch = ((s[0] & 0x0f) << 12) + ((s[1] & 0x3f) << 6) + (s[2] & 0x3f); |
| if (ch < 0x0800) { |
| /* Note: UTF-8 encodings of surrogates are considered |
| legal UTF-8 sequences; |
| |
| XXX For wide builds (UCS-4) we should probably try |
| to recombine the surrogates into a single code |
| unit. |
| */ |
| errmsg = "illegal encoding"; |
| startinpos = s-starts; |
| endinpos = startinpos+3; |
| goto utf8Error; |
| } |
| else |
| *p++ = (Py_UNICODE)ch; |
| break; |
| |
| case 4: |
| if ((s[1] & 0xc0) != 0x80 || |
| (s[2] & 0xc0) != 0x80 || |
| (s[3] & 0xc0) != 0x80) { |
| errmsg = "invalid data"; |
| startinpos = s-starts; |
| endinpos = startinpos+4; |
| goto utf8Error; |
| } |
| ch = ((s[0] & 0x7) << 18) + ((s[1] & 0x3f) << 12) + |
| ((s[2] & 0x3f) << 6) + (s[3] & 0x3f); |
| /* validate and convert to UTF-16 */ |
| if ((ch < 0x10000) /* minimum value allowed for 4 |
| byte encoding */ |
| || (ch > 0x10ffff)) /* maximum value allowed for |
| UTF-16 */ |
| { |
| errmsg = "illegal encoding"; |
| startinpos = s-starts; |
| endinpos = startinpos+4; |
| goto utf8Error; |
| } |
| #ifdef Py_UNICODE_WIDE |
| *p++ = (Py_UNICODE)ch; |
| #else |
| /* compute and append the two surrogates: */ |
| |
| /* translate from 10000..10FFFF to 0..FFFF */ |
| ch -= 0x10000; |
| |
| /* high surrogate = top 10 bits added to D800 */ |
| *p++ = (Py_UNICODE)(0xD800 + (ch >> 10)); |
| |
| /* low surrogate = bottom 10 bits added to DC00 */ |
| *p++ = (Py_UNICODE)(0xDC00 + (ch & 0x03FF)); |
| #endif |
| break; |
| |
| default: |
| /* Other sizes are only needed for UCS-4 */ |
| errmsg = "unsupported Unicode code range"; |
| startinpos = s-starts; |
| endinpos = startinpos+n; |
| goto utf8Error; |
| } |
| s += n; |
| continue; |
| |
| utf8Error: |
| outpos = p-PyUnicode_AS_UNICODE(unicode); |
| if (unicode_decode_call_errorhandler( |
| errors, &errorHandler, |
| "utf8", errmsg, |
| starts, size, &startinpos, &endinpos, &exc, &s, |
| (PyObject **)&unicode, &outpos, &p)) |
| goto onError; |
| } |
| if (consumed) |
| *consumed = s-starts; |
| |
| /* Adjust length */ |
| if (_PyUnicode_Resize(&unicode, p - unicode->str) < 0) |
| goto onError; |
| |
| Py_XDECREF(errorHandler); |
| Py_XDECREF(exc); |
| return (PyObject *)unicode; |
| |
| onError: |
| Py_XDECREF(errorHandler); |
| Py_XDECREF(exc); |
| Py_DECREF(unicode); |
| return NULL; |
| } |
| |
| /* Allocation strategy: if the string is short, convert into a stack buffer |
| and allocate exactly as much space needed at the end. Else allocate the |
| maximum possible needed (4 result bytes per Unicode character), and return |
| the excess memory at the end. |
| */ |
| PyObject * |
| PyUnicode_EncodeUTF8(const Py_UNICODE *s, |
| Py_ssize_t size, |
| const char *errors) |
| { |
| #define MAX_SHORT_UNICHARS 300 /* largest size we'll do on the stack */ |
| |
| Py_ssize_t i; /* index into s of next input byte */ |
| PyObject *v; /* result string object */ |
| char *p; /* next free byte in output buffer */ |
| Py_ssize_t nallocated; /* number of result bytes allocated */ |
| Py_ssize_t nneeded; /* number of result bytes needed */ |
| char stackbuf[MAX_SHORT_UNICHARS * 4]; |
| |
| assert(s != NULL); |
| assert(size >= 0); |
| |
| if (size <= MAX_SHORT_UNICHARS) { |
| /* Write into the stack buffer; nallocated can't overflow. |
| * At the end, we'll allocate exactly as much heap space as it |
| * turns out we need. |
| */ |
| nallocated = Py_SAFE_DOWNCAST(sizeof(stackbuf), size_t, int); |
| v = NULL; /* will allocate after we're done */ |
| p = stackbuf; |
| } |
| else { |
| /* Overallocate on the heap, and give the excess back at the end. */ |
| nallocated = size * 4; |
| if (nallocated / 4 != size) /* overflow! */ |
| return PyErr_NoMemory(); |
| v = PyString_FromStringAndSize(NULL, nallocated); |
| if (v == NULL) |
| return NULL; |
| p = PyString_AS_STRING(v); |
| } |
| |
| for (i = 0; i < size;) { |
| Py_UCS4 ch = s[i++]; |
| |
| if (ch < 0x80) |
| /* Encode ASCII */ |
| *p++ = (char) ch; |
| |
| else if (ch < 0x0800) { |
| /* Encode Latin-1 */ |
| *p++ = (char)(0xc0 | (ch >> 6)); |
| *p++ = (char)(0x80 | (ch & 0x3f)); |
| } |
| else { |
| /* Encode UCS2 Unicode ordinals */ |
| if (ch < 0x10000) { |
| /* Special case: check for high surrogate */ |
| if (0xD800 <= ch && ch <= 0xDBFF && i != size) { |
| Py_UCS4 ch2 = s[i]; |
| /* Check for low surrogate and combine the two to |
| form a UCS4 value */ |
| if (0xDC00 <= ch2 && ch2 <= 0xDFFF) { |
| ch = ((ch - 0xD800) << 10 | (ch2 - 0xDC00)) + 0x10000; |
| i++; |
| goto encodeUCS4; |
| } |
| /* Fall through: handles isolated high surrogates */ |
| } |
| *p++ = (char)(0xe0 | (ch >> 12)); |
| *p++ = (char)(0x80 | ((ch >> 6) & 0x3f)); |
| *p++ = (char)(0x80 | (ch & 0x3f)); |
| continue; |
| } |
| encodeUCS4: |
| /* Encode UCS4 Unicode ordinals */ |
| *p++ = (char)(0xf0 | (ch >> 18)); |
| *p++ = (char)(0x80 | ((ch >> 12) & 0x3f)); |
| *p++ = (char)(0x80 | ((ch >> 6) & 0x3f)); |
| *p++ = (char)(0x80 | (ch & 0x3f)); |
| } |
| } |
| |
| if (v == NULL) { |
| /* This was stack allocated. */ |
| nneeded = p - stackbuf; |
| assert(nneeded <= nallocated); |
| v = PyString_FromStringAndSize(stackbuf, nneeded); |
| } |
| else { |
| /* Cut back to size actually needed. */ |
| nneeded = p - PyString_AS_STRING(v); |
| assert(nneeded <= nallocated); |
| _PyString_Resize(&v, nneeded); |
| } |
| return v; |
| |
| #undef MAX_SHORT_UNICHARS |
| } |
| |
| PyObject *PyUnicode_AsUTF8String(PyObject *unicode) |
| { |
| if (!PyUnicode_Check(unicode)) { |
| PyErr_BadArgument(); |
| return NULL; |
| } |
| return PyUnicode_EncodeUTF8(PyUnicode_AS_UNICODE(unicode), |
| PyUnicode_GET_SIZE(unicode), |
| NULL); |
| } |
| |
| /* --- UTF-16 Codec ------------------------------------------------------- */ |
| |
| PyObject * |
| PyUnicode_DecodeUTF16(const char *s, |
| Py_ssize_t size, |
| const char *errors, |
| int *byteorder) |
| { |
| return PyUnicode_DecodeUTF16Stateful(s, size, errors, byteorder, NULL); |
| } |
| |
| PyObject * |
| PyUnicode_DecodeUTF16Stateful(const char *s, |
| Py_ssize_t size, |
| const char *errors, |
| int *byteorder, |
| Py_ssize_t *consumed) |
| { |
| const char *starts = s; |
| Py_ssize_t startinpos; |
| Py_ssize_t endinpos; |
| Py_ssize_t outpos; |
| PyUnicodeObject *unicode; |
| Py_UNICODE *p; |
| const unsigned char *q, *e; |
| int bo = 0; /* assume native ordering by default */ |
| const char *errmsg = ""; |
| /* Offsets from q for retrieving byte pairs in the right order. */ |
| #ifdef BYTEORDER_IS_LITTLE_ENDIAN |
| int ihi = 1, ilo = 0; |
| #else |
| int ihi = 0, ilo = 1; |
| #endif |
| PyObject *errorHandler = NULL; |
| PyObject *exc = NULL; |
| |
| /* Note: size will always be longer than the resulting Unicode |
| character count */ |
| unicode = _PyUnicode_New(size); |
| if (!unicode) |
| return NULL; |
| if (size == 0) |
| return (PyObject *)unicode; |
| |
| /* Unpack UTF-16 encoded data */ |
| p = unicode->str; |
| q = (unsigned char *)s; |
| e = q + size; |
| |
| if (byteorder) |
| bo = *byteorder; |
| |
| /* Check for BOM marks (U+FEFF) in the input and adjust current |
| byte order setting accordingly. In native mode, the leading BOM |
| mark is skipped, in all other modes, it is copied to the output |
| stream as-is (giving a ZWNBSP character). */ |
| if (bo == 0) { |
| if (size >= 2) { |
| const Py_UNICODE bom = (q[ihi] << 8) | q[ilo]; |
| #ifdef BYTEORDER_IS_LITTLE_ENDIAN |
| if (bom == 0xFEFF) { |
| q += 2; |
| bo = -1; |
| } |
| else if (bom == 0xFFFE) { |
| q += 2; |
| bo = 1; |
| } |
| #else |
| if (bom == 0xFEFF) { |
| q += 2; |
| bo = 1; |
| } |
| else if (bom == 0xFFFE) { |
| q += 2; |
| bo = -1; |
| } |
| #endif |
| } |
| } |
| |
| if (bo == -1) { |
| /* force LE */ |
| ihi = 1; |
| ilo = 0; |
| } |
| else if (bo == 1) { |
| /* force BE */ |
| ihi = 0; |
| ilo = 1; |
| } |
| |
| while (q < e) { |
| Py_UNICODE ch; |
| /* remaining bytes at the end? (size should be even) */ |
| if (e-q<2) { |
| if (consumed) |
| break; |
| errmsg = "truncated data"; |
| startinpos = ((const char *)q)-starts; |
| endinpos = ((const char *)e)-starts; |
| goto utf16Error; |
| /* The remaining input chars are ignored if the callback |
| chooses to skip the input */ |
| } |
| ch = (q[ihi] << 8) | q[ilo]; |
| |
| q += 2; |
| |
| if (ch < 0xD800 || ch > 0xDFFF) { |
| *p++ = ch; |
| continue; |
| } |
| |
| /* UTF-16 code pair: */ |
| if (q >= e) { |
| errmsg = "unexpected end of data"; |
| startinpos = (((const char *)q)-2)-starts; |
| endinpos = ((const char *)e)-starts; |
| goto utf16Error; |
| } |
| if (0xD800 <= ch && ch <= 0xDBFF) { |
| Py_UNICODE ch2 = (q[ihi] << 8) | q[ilo]; |
| q += 2; |
| if (0xDC00 <= ch2 && ch2 <= 0xDFFF) { |
| #ifndef Py_UNICODE_WIDE |
| *p++ = ch; |
| *p++ = ch2; |
| #else |
| *p++ = (((ch & 0x3FF)<<10) | (ch2 & 0x3FF)) + 0x10000; |
| #endif |
| continue; |
| } |
| else { |
| errmsg = "illegal UTF-16 surrogate"; |
| startinpos = (((const char *)q)-4)-starts; |
| endinpos = startinpos+2; |
| goto utf16Error; |
| } |
| |
| } |
| errmsg = "illegal encoding"; |
| startinpos = (((const char *)q)-2)-starts; |
| endinpos = startinpos+2; |
| /* Fall through to report the error */ |
| |
| utf16Error: |
| outpos = p-PyUnicode_AS_UNICODE(unicode); |
| if (unicode_decode_call_errorhandler( |
| errors, &errorHandler, |
| "utf16", errmsg, |
| starts, size, &startinpos, &endinpos, &exc, (const char **)&q, |
| (PyObject **)&unicode, &outpos, &p)) |
| goto onError; |
| } |
| |
| if (byteorder) |
| *byteorder = bo; |
| |
| if (consumed) |
| *consumed = (const char *)q-starts; |
| |
| /* Adjust length */ |
| if (_PyUnicode_Resize(&unicode, p - unicode->str) < 0) |
| goto onError; |
| |
| Py_XDECREF(errorHandler); |
| Py_XDECREF(exc); |
| return (PyObject *)unicode; |
| |
| onError: |
| Py_DECREF(unicode); |
| Py_XDECREF(errorHandler); |
| Py_XDECREF(exc); |
| return NULL; |
| } |
| |
| PyObject * |
| PyUnicode_EncodeUTF16(const Py_UNICODE *s, |
| Py_ssize_t size, |
| const char *errors, |
| int byteorder) |
| { |
| PyObject *v; |
| unsigned char *p; |
| #ifdef Py_UNICODE_WIDE |
| int i, pairs; |
| #else |
| const int pairs = 0; |
| #endif |
| /* Offsets from p for storing byte pairs in the right order. */ |
| #ifdef BYTEORDER_IS_LITTLE_ENDIAN |
| int ihi = 1, ilo = 0; |
| #else |
| int ihi = 0, ilo = 1; |
| #endif |
| |
| #define STORECHAR(CH) \ |
| do { \ |
| p[ihi] = ((CH) >> 8) & 0xff; \ |
| p[ilo] = (CH) & 0xff; \ |
| p += 2; \ |
| } while(0) |
| |
| #ifdef Py_UNICODE_WIDE |
| for (i = pairs = 0; i < size; i++) |
| if (s[i] >= 0x10000) |
| pairs++; |
| #endif |
| v = PyString_FromStringAndSize(NULL, |
| 2 * (size + pairs + (byteorder == 0))); |
| if (v == NULL) |
| return NULL; |
| |
| p = (unsigned char *)PyString_AS_STRING(v); |
| if (byteorder == 0) |
| STORECHAR(0xFEFF); |
| if (size == 0) |
| return v; |
| |
| if (byteorder == -1) { |
| /* force LE */ |
| ihi = 1; |
| ilo = 0; |
| } |
| else if (byteorder == 1) { |
| /* force BE */ |
| ihi = 0; |
| ilo = 1; |
| } |
| |
| while (size-- > 0) { |
| Py_UNICODE ch = *s++; |
| Py_UNICODE ch2 = 0; |
| #ifdef Py_UNICODE_WIDE |
| if (ch >= 0x10000) { |
| ch2 = 0xDC00 | ((ch-0x10000) & 0x3FF); |
| ch = 0xD800 | ((ch-0x10000) >> 10); |
| } |
| #endif |
| STORECHAR(ch); |
| if (ch2) |
| STORECHAR(ch2); |
| } |
| return v; |
| #undef STORECHAR |
| } |
| |
| PyObject *PyUnicode_AsUTF16String(PyObject *unicode) |
| { |
| if (!PyUnicode_Check(unicode)) { |
| PyErr_BadArgument(); |
| return NULL; |
| } |
| return PyUnicode_EncodeUTF16(PyUnicode_AS_UNICODE(unicode), |
| PyUnicode_GET_SIZE(unicode), |
| NULL, |
| 0); |
| } |
| |
| /* --- Unicode Escape Codec ----------------------------------------------- */ |
| |
| static _PyUnicode_Name_CAPI *ucnhash_CAPI = NULL; |
| |
| PyObject *PyUnicode_DecodeUnicodeEscape(const char *s, |
| Py_ssize_t size, |
| const char *errors) |
| { |
| const char *starts = s; |
| Py_ssize_t startinpos; |
| Py_ssize_t endinpos; |
| Py_ssize_t outpos; |
| int i; |
| PyUnicodeObject *v; |
| Py_UNICODE *p; |
| const char *end; |
| char* message; |
| Py_UCS4 chr = 0xffffffff; /* in case 'getcode' messes up */ |
| PyObject *errorHandler = NULL; |
| PyObject *exc = NULL; |
| |
| /* Escaped strings will always be longer than the resulting |
| Unicode string, so we start with size here and then reduce the |
| length after conversion to the true value. |
| (but if the error callback returns a long replacement string |
| we'll have to allocate more space) */ |
| v = _PyUnicode_New(size); |
| if (v == NULL) |
| goto onError; |
| if (size == 0) |
| return (PyObject *)v; |
| |
| p = PyUnicode_AS_UNICODE(v); |
| end = s + size; |
| |
| while (s < end) { |
| unsigned char c; |
| Py_UNICODE x; |
| int digits; |
| |
| /* Non-escape characters are interpreted as Unicode ordinals */ |
| if (*s != '\\') { |
| *p++ = (unsigned char) *s++; |
| continue; |
| } |
| |
| startinpos = s-starts; |
| /* \ - Escapes */ |
| s++; |
| switch (*s++) { |
| |
| /* \x escapes */ |
| case '\n': break; |
| case '\\': *p++ = '\\'; break; |
| case '\'': *p++ = '\''; break; |
| case '\"': *p++ = '\"'; break; |
| case 'b': *p++ = '\b'; break; |
| case 'f': *p++ = '\014'; break; /* FF */ |
| case 't': *p++ = '\t'; break; |
| case 'n': *p++ = '\n'; break; |
| case 'r': *p++ = '\r'; break; |
| case 'v': *p++ = '\013'; break; /* VT */ |
| case 'a': *p++ = '\007'; break; /* BEL, not classic C */ |
| |
| /* \OOO (octal) escapes */ |
| case '0': case '1': case '2': case '3': |
| case '4': case '5': case '6': case '7': |
| x = s[-1] - '0'; |
| if ('0' <= *s && *s <= '7') { |
| x = (x<<3) + *s++ - '0'; |
| if ('0' <= *s && *s <= '7') |
| x = (x<<3) + *s++ - '0'; |
| } |
| *p++ = x; |
| break; |
| |
| /* hex escapes */ |
| /* \xXX */ |
| case 'x': |
| digits = 2; |
| message = "truncated \\xXX escape"; |
| goto hexescape; |
| |
| /* \uXXXX */ |
| case 'u': |
| digits = 4; |
| message = "truncated \\uXXXX escape"; |
| goto hexescape; |
| |
| /* \UXXXXXXXX */ |
| case 'U': |
| digits = 8; |
| message = "truncated \\UXXXXXXXX escape"; |
| hexescape: |
| chr = 0; |
| outpos = p-PyUnicode_AS_UNICODE(v); |
| if (s+digits>end) { |
| endinpos = size; |
| if (unicode_decode_call_errorhandler( |
| errors, &errorHandler, |
| "unicodeescape", "end of string in escape sequence", |
| starts, size, &startinpos, &endinpos, &exc, &s, |
| (PyObject **)&v, &outpos, &p)) |
| goto onError; |
| goto nextByte; |
| } |
| for (i = 0; i < digits; ++i) { |
| c = (unsigned char) s[i]; |
| if (!isxdigit(c)) { |
| endinpos = (s+i+1)-starts; |
| if (unicode_decode_call_errorhandler( |
| errors, &errorHandler, |
| "unicodeescape", message, |
| starts, size, &startinpos, &endinpos, &exc, &s, |
| (PyObject **)&v, &outpos, &p)) |
| goto onError; |
| goto nextByte; |
| } |
| chr = (chr<<4) & ~0xF; |
| if (c >= '0' && c <= '9') |
| chr += c - '0'; |
| else if (c >= 'a' && c <= 'f') |
| chr += 10 + c - 'a'; |
| else |
| chr += 10 + c - 'A'; |
| } |
| s += i; |
| if (chr == 0xffffffff && PyErr_Occurred()) |
| /* _decoding_error will have already written into the |
| target buffer. */ |
| break; |
| store: |
| /* when we get here, chr is a 32-bit unicode character */ |
| if (chr <= 0xffff) |
| /* UCS-2 character */ |
| *p++ = (Py_UNICODE) chr; |
| else if (chr <= 0x10ffff) { |
| /* UCS-4 character. Either store directly, or as |
| surrogate pair. */ |
| #ifdef Py_UNICODE_WIDE |
| *p++ = chr; |
| #else |
| chr -= 0x10000L; |
| *p++ = 0xD800 + (Py_UNICODE) (chr >> 10); |
| *p++ = 0xDC00 + (Py_UNICODE) (chr & 0x03FF); |
| #endif |
| } else { |
| endinpos = s-starts; |
| outpos = p-PyUnicode_AS_UNICODE(v); |
| if (unicode_decode_call_errorhandler( |
| errors, &errorHandler, |
| "unicodeescape", "illegal Unicode character", |
| starts, size, &startinpos, &endinpos, &exc, &s, |
| (PyObject **)&v, &outpos, &p)) |
| goto onError; |
| } |
| break; |
| |
| /* \N{name} */ |
| case 'N': |
| message = "malformed \\N character escape"; |
| if (ucnhash_CAPI == NULL) { |
| /* load the unicode data module */ |
| PyObject *m, *api; |
| m = PyImport_ImportModule("unicodedata"); |
| if (m == NULL) |
| goto ucnhashError; |
| api = PyObject_GetAttrString(m, "ucnhash_CAPI"); |
| Py_DECREF(m); |
| if (api == NULL) |
| goto ucnhashError; |
| ucnhash_CAPI = (_PyUnicode_Name_CAPI *)PyCObject_AsVoidPtr(api); |
| Py_DECREF(api); |
| if (ucnhash_CAPI == NULL) |
| goto ucnhashError; |
| } |
| if (*s == '{') { |
| const char *start = s+1; |
| /* look for the closing brace */ |
| while (*s != '}' && s < end) |
| s++; |
| if (s > start && s < end && *s == '}') { |
| /* found a name. look it up in the unicode database */ |
| message = "unknown Unicode character name"; |
| s++; |
| if (ucnhash_CAPI->getcode(NULL, start, (int)(s-start-1), &chr)) |
| goto store; |
| } |
| } |
| endinpos = s-starts; |
| outpos = p-PyUnicode_AS_UNICODE(v); |
| if (unicode_decode_call_errorhandler( |
| errors, &errorHandler, |
| "unicodeescape", message, |
| starts, size, &startinpos, &endinpos, &exc, &s, |
| (PyObject **)&v, &outpos, &p)) |
| goto onError; |
| break; |
| |
| default: |
| if (s > end) { |
| message = "\\ at end of string"; |
| s--; |
| endinpos = s-starts; |
| outpos = p-PyUnicode_AS_UNICODE(v); |
| if (unicode_decode_call_errorhandler( |
| errors, &errorHandler, |
| "unicodeescape", message, |
| starts, size, &startinpos, &endinpos, &exc, &s, |
| (PyObject **)&v, &outpos, &p)) |
| goto onError; |
| } |
| else { |
| *p++ = '\\'; |
| *p++ = (unsigned char)s[-1]; |
| } |
| break; |
| } |
| nextByte: |
| ; |
| } |
| if (_PyUnicode_Resize(&v, p - PyUnicode_AS_UNICODE(v)) < 0) |
| goto onError; |
| Py_XDECREF(errorHandler); |
| Py_XDECREF(exc); |
| return (PyObject *)v; |
| |
| ucnhashError: |
| PyErr_SetString( |
| PyExc_UnicodeError, |
| "\\N escapes not supported (can't load unicodedata module)" |
| ); |
| Py_XDECREF(v); |
| Py_XDECREF(errorHandler); |
| Py_XDECREF(exc); |
| return NULL; |
| |
| onError: |
| Py_XDECREF(v); |
| Py_XDECREF(errorHandler); |
| Py_XDECREF(exc); |
| return NULL; |
| } |
| |
| /* Return a Unicode-Escape string version of the Unicode object. |
| |
| If quotes is true, the string is enclosed in u"" or u'' quotes as |
| appropriate. |
| |
| */ |
| |
| Py_LOCAL_INLINE(const Py_UNICODE *) findchar(const Py_UNICODE *s, |
| Py_ssize_t size, |
| Py_UNICODE ch) |
| { |
| /* like wcschr, but doesn't stop at NULL characters */ |
| |
| while (size-- > 0) { |
| if (*s == ch) |
| return s; |
| s++; |
| } |
| |
| return NULL; |
| } |
| |
| static |
| PyObject *unicodeescape_string(const Py_UNICODE *s, |
| Py_ssize_t size, |
| int quotes) |
| { |
| PyObject *repr; |
| char *p; |
| |
| static const char *hexdigit = "0123456789abcdef"; |
| |
| repr = PyString_FromStringAndSize(NULL, 2 + 6*size + 1); |
| if (repr == NULL) |
| return NULL; |
| |
| p = PyString_AS_STRING(repr); |
| |
| if (quotes) { |
| *p++ = 'u'; |
| *p++ = (findchar(s, size, '\'') && |
| !findchar(s, size, '"')) ? '"' : '\''; |
| } |
| while (size-- > 0) { |
| Py_UNICODE ch = *s++; |
| |
| /* Escape quotes and backslashes */ |
| if ((quotes && |
| ch == (Py_UNICODE) PyString_AS_STRING(repr)[1]) || ch == '\\') { |
| *p++ = '\\'; |
| *p++ = (char) ch; |
| continue; |
| } |
| |
| #ifdef Py_UNICODE_WIDE |
| /* Map 21-bit characters to '\U00xxxxxx' */ |
| else if (ch >= 0x10000) { |
| Py_ssize_t offset = p - PyString_AS_STRING(repr); |
| |
| /* Resize the string if necessary */ |
| if (offset + 12 > PyString_GET_SIZE(repr)) { |
| if (_PyString_Resize(&repr, PyString_GET_SIZE(repr) + 100)) |
| return NULL; |
| p = PyString_AS_STRING(repr) + offset; |
| } |
| |
| *p++ = '\\'; |
| *p++ = 'U'; |
| *p++ = hexdigit[(ch >> 28) & 0x0000000F]; |
| *p++ = hexdigit[(ch >> 24) & 0x0000000F]; |
| *p++ = hexdigit[(ch >> 20) & 0x0000000F]; |
| *p++ = hexdigit[(ch >> 16) & 0x0000000F]; |
| *p++ = hexdigit[(ch >> 12) & 0x0000000F]; |
| *p++ = hexdigit[(ch >> 8) & 0x0000000F]; |
| *p++ = hexdigit[(ch >> 4) & 0x0000000F]; |
| *p++ = hexdigit[ch & 0x0000000F]; |
| continue; |
| } |
| #endif |
| /* Map UTF-16 surrogate pairs to Unicode \UXXXXXXXX escapes */ |
| else if (ch >= 0xD800 && ch < 0xDC00) { |
| Py_UNICODE ch2; |
| Py_UCS4 ucs; |
| |
| ch2 = *s++; |
| size--; |
| if (ch2 >= 0xDC00 && ch2 <= 0xDFFF) { |
| ucs = (((ch & 0x03FF) << 10) | (ch2 & 0x03FF)) + 0x00010000; |
| *p++ = '\\'; |
| *p++ = 'U'; |
| *p++ = hexdigit[(ucs >> 28) & 0x0000000F]; |
| *p++ = hexdigit[(ucs >> 24) & 0x0000000F]; |
| *p++ = hexdigit[(ucs >> 20) & 0x0000000F]; |
| *p++ = hexdigit[(ucs >> 16) & 0x0000000F]; |
| *p++ = hexdigit[(ucs >> 12) & 0x0000000F]; |
| *p++ = hexdigit[(ucs >> 8) & 0x0000000F]; |
| *p++ = hexdigit[(ucs >> 4) & 0x0000000F]; |
| *p++ = hexdigit[ucs & 0x0000000F]; |
| continue; |
| } |
| /* Fall through: isolated surrogates are copied as-is */ |
| s--; |
| size++; |
| } |
| |
| /* Map 16-bit characters to '\uxxxx' */ |
| if (ch >= 256) { |
| *p++ = '\\'; |
| *p++ = 'u'; |
| *p++ = hexdigit[(ch >> 12) & 0x000F]; |
| *p++ = hexdigit[(ch >> 8) & 0x000F]; |
| *p++ = hexdigit[(ch >> 4) & 0x000F]; |
| *p++ = hexdigit[ch & 0x000F]; |
| } |
| |
| /* Map special whitespace to '\t', \n', '\r' */ |
| else if (ch == '\t') { |
| *p++ = '\\'; |
| *p++ = 't'; |
| } |
| else if (ch == '\n') { |
| *p++ = '\\'; |
| *p++ = 'n'; |
| } |
| else if (ch == '\r') { |
| *p++ = '\\'; |
| *p++ = 'r'; |
| } |
| |
| /* Map non-printable US ASCII to '\xhh' */ |
| else if (ch < ' ' || ch >= 0x7F) { |
| *p++ = '\\'; |
| *p++ = 'x'; |
| *p++ = hexdigit[(ch >> 4) & 0x000F]; |
| *p++ = hexdigit[ch & 0x000F]; |
| } |
| |
| /* Copy everything else as-is */ |
| else |
| *p++ = (char) ch; |
| } |
| if (quotes) |
| *p++ = PyString_AS_STRING(repr)[1]; |
| |
| *p = '\0'; |
| _PyString_Resize(&repr, p - PyString_AS_STRING(repr)); |
| return repr; |
| } |
| |
| PyObject *PyUnicode_EncodeUnicodeEscape(const Py_UNICODE *s, |
| Py_ssize_t size) |
| { |
| return unicodeescape_string(s, size, 0); |
| } |
| |
| PyObject *PyUnicode_AsUnicodeEscapeString(PyObject *unicode) |
| { |
| if (!PyUnicode_Check(unicode)) { |
| PyErr_BadArgument(); |
| return NULL; |
| } |
| return PyUnicode_EncodeUnicodeEscape(PyUnicode_AS_UNICODE(unicode), |
| PyUnicode_GET_SIZE(unicode)); |
| } |
| |
| /* --- Raw Unicode Escape Codec ------------------------------------------- */ |
| |
| PyObject *PyUnicode_DecodeRawUnicodeEscape(const char *s, |
| Py_ssize_t size, |
| const char *errors) |
| { |
| const char *starts = s; |
| Py_ssize_t startinpos; |
| Py_ssize_t endinpos; |
| Py_ssize_t outpos; |
| PyUnicodeObject *v; |
| Py_UNICODE *p; |
| const char *end; |
| const char *bs; |
| PyObject *errorHandler = NULL; |
| PyObject *exc = NULL; |
| |
| /* Escaped strings will always be longer than the resulting |
| Unicode string, so we start with size here and then reduce the |
| length after conversion to the true value. (But decoding error |
| handler might have to resize the string) */ |
| v = _PyUnicode_New(size); |
| if (v == NULL) |
| goto onError; |
| if (size == 0) |
| return (PyObject *)v; |
| p = PyUnicode_AS_UNICODE(v); |
| end = s + size; |
| while (s < end) { |
| unsigned char c; |
| Py_UCS4 x; |
| int i; |
| int count; |
| |
| /* Non-escape characters are interpreted as Unicode ordinals */ |
| if (*s != '\\') { |
| *p++ = (unsigned char)*s++; |
| continue; |
| } |
| startinpos = s-starts; |
| |
| /* \u-escapes are only interpreted iff the number of leading |
| backslashes if odd */ |
| bs = s; |
| for (;s < end;) { |
| if (*s != '\\') |
| break; |
| *p++ = (unsigned char)*s++; |
| } |
| if (((s - bs) & 1) == 0 || |
| s >= end || |
| (*s != 'u' && *s != 'U')) { |
| continue; |
| } |
| p--; |
| count = *s=='u' ? 4 : 8; |
| s++; |
| |
| /* \uXXXX with 4 hex digits, \Uxxxxxxxx with 8 */ |
| outpos = p-PyUnicode_AS_UNICODE(v); |
| for (x = 0, i = 0; i < count; ++i, ++s) { |
| c = (unsigned char)*s; |
| if (!isxdigit(c)) { |
| endinpos = s-starts; |
| if (unicode_decode_call_errorhandler( |
| errors, &errorHandler, |
| "rawunicodeescape", "truncated \\uXXXX", |
| starts, size, &startinpos, &endinpos, &exc, &s, |
| (PyObject **)&v, &outpos, &p)) |
| goto onError; |
| goto nextByte; |
| } |
| x = (x<<4) & ~0xF; |
| if (c >= '0' && c <= '9') |
| x += c - '0'; |
| else if (c >= 'a' && c <= 'f') |
| x += 10 + c - 'a'; |
| else |
| x += 10 + c - 'A'; |
| } |
| #ifndef Py_UNICODE_WIDE |
| if (x > 0x10000) { |
| if (unicode_decode_call_errorhandler( |
| errors, &errorHandler, |
| "rawunicodeescape", "\\Uxxxxxxxx out of range", |
| starts, size, &startinpos, &endinpos, &exc, &s, |
| (PyObject **)&v, &outpos, &p)) |
| goto onError; |
| } |
| #endif |
| *p++ = x; |
| nextByte: |
| ; |
| } |
| if (_PyUnicode_Resize(&v, p - PyUnicode_AS_UNICODE(v)) < 0) |
| goto onError; |
| Py_XDECREF(errorHandler); |
| Py_XDECREF(exc); |
| return (PyObject *)v; |
| |
| onError: |
| Py_XDECREF(v); |
| Py_XDECREF(errorHandler); |
| Py_XDECREF(exc); |
| return NULL; |
| } |
| |
| PyObject *PyUnicode_EncodeRawUnicodeEscape(const Py_UNICODE *s, |
| Py_ssize_t size) |
| { |
| PyObject *repr; |
| char *p; |
| char *q; |
| |
| static const char *hexdigit = "0123456789abcdef"; |
| |
| #ifdef Py_UNICODE_WIDE |
| repr = PyString_FromStringAndSize(NULL, 10 * size); |
| #else |
| repr = PyString_FromStringAndSize(NULL, 6 * size); |
| #endif |
| if (repr == NULL) |
| return NULL; |
| if (size == 0) |
| return repr; |
| |
| p = q = PyString_AS_STRING(repr); |
| while (size-- > 0) { |
| Py_UNICODE ch = *s++; |
| #ifdef Py_UNICODE_WIDE |
| /* Map 32-bit characters to '\Uxxxxxxxx' */ |
| if (ch >= 0x10000) { |
| *p++ = '\\'; |
| *p++ = 'U'; |
| *p++ = hexdigit[(ch >> 28) & 0xf]; |
| *p++ = hexdigit[(ch >> 24) & 0xf]; |
| *p++ = hexdigit[(ch >> 20) & 0xf]; |
| *p++ = hexdigit[(ch >> 16) & 0xf]; |
| *p++ = hexdigit[(ch >> 12) & 0xf]; |
| *p++ = hexdigit[(ch >> 8) & 0xf]; |
| *p++ = hexdigit[(ch >> 4) & 0xf]; |
| *p++ = hexdigit[ch & 15]; |
| } |
| else |
| #endif |
| /* Map 16-bit characters to '\uxxxx' */ |
| if (ch >= 256) { |
| *p++ = '\\'; |
| *p++ = 'u'; |
| *p++ = hexdigit[(ch >> 12) & 0xf]; |
| *p++ = hexdigit[(ch >> 8) & 0xf]; |
| *p++ = hexdigit[(ch >> 4) & 0xf]; |
| *p++ = hexdigit[ch & 15]; |
| } |
| /* Copy everything else as-is */ |
| else |
| *p++ = (char) ch; |
| } |
| *p = '\0'; |
| _PyString_Resize(&repr, p - q); |
| return repr; |
| } |
| |
| PyObject *PyUnicode_AsRawUnicodeEscapeString(PyObject *unicode) |
| { |
| if (!PyUnicode_Check(unicode)) { |
| PyErr_BadArgument(); |
| return NULL; |
| } |
| return PyUnicode_EncodeRawUnicodeEscape(PyUnicode_AS_UNICODE(unicode), |
| PyUnicode_GET_SIZE(unicode)); |
| } |
| |
| /* --- Unicode Internal Codec ------------------------------------------- */ |
| |
| PyObject *_PyUnicode_DecodeUnicodeInternal(const char *s, |
| Py_ssize_t size, |
| const char *errors) |
| { |
| const char *starts = s; |
| Py_ssize_t startinpos; |
| Py_ssize_t endinpos; |
| Py_ssize_t outpos; |
| PyUnicodeObject *v; |
| Py_UNICODE *p; |
| const char *end; |
| const char *reason; |
| PyObject *errorHandler = NULL; |
| PyObject *exc = NULL; |
| |
| #ifdef Py_UNICODE_WIDE |
| Py_UNICODE unimax = PyUnicode_GetMax(); |
| #endif |
| |
| v = _PyUnicode_New((size+Py_UNICODE_SIZE-1)/ Py_UNICODE_SIZE); |
| if (v == NULL) |
| goto onError; |
| if (PyUnicode_GetSize((PyObject *)v) == 0) |
| return (PyObject *)v; |
| p = PyUnicode_AS_UNICODE(v); |
| end = s + size; |
| |
| while (s < end) { |
| memcpy(p, s, sizeof(Py_UNICODE)); |
| /* We have to sanity check the raw data, otherwise doom looms for |
| some malformed UCS-4 data. */ |
| if ( |
| #ifdef Py_UNICODE_WIDE |
| *p > unimax || *p < 0 || |
| #endif |
| end-s < Py_UNICODE_SIZE |
| ) |
| { |
| startinpos = s - starts; |
| if (end-s < Py_UNICODE_SIZE) { |
| endinpos = end-starts; |
| reason = "truncated input"; |
| } |
| else { |
| endinpos = s - starts + Py_UNICODE_SIZE; |
| reason = "illegal code point (> 0x10FFFF)"; |
| } |
| outpos = p - PyUnicode_AS_UNICODE(v); |
| if (unicode_decode_call_errorhandler( |
| errors, &errorHandler, |
| "unicode_internal", reason, |
| starts, size, &startinpos, &endinpos, &exc, &s, |
| (PyObject **)&v, &outpos, &p)) { |
| goto onError; |
| } |
| } |
| else { |
| p++; |
| s += Py_UNICODE_SIZE; |
| } |
| } |
| |
| if (_PyUnicode_Resize(&v, p - PyUnicode_AS_UNICODE(v)) < 0) |
| goto onError; |
| Py_XDECREF(errorHandler); |
| Py_XDECREF(exc); |
| return (PyObject *)v; |
| |
| onError: |
| Py_XDECREF(v); |
| Py_XDECREF(errorHandler); |
| Py_XDECREF(exc); |
| return NULL; |
| } |
| |
| /* --- Latin-1 Codec ------------------------------------------------------ */ |
| |
| PyObject *PyUnicode_DecodeLatin1(const char *s, |
| Py_ssize_t size, |
| const char *errors) |
| { |
| PyUnicodeObject *v; |
| Py_UNICODE *p; |
| |
| /* Latin-1 is equivalent to the first 256 ordinals in Unicode. */ |
| if (size == 1) { |
| Py_UNICODE r = *(unsigned char*)s; |
| return PyUnicode_FromUnicode(&r, 1); |
| } |
| |
| v = _PyUnicode_New(size); |
| if (v == NULL) |
| goto onError; |
| if (size == 0) |
| return (PyObject *)v; |
| p = PyUnicode_AS_UNICODE(v); |
| while (size-- > 0) |
| *p++ = (unsigned char)*s++; |
| return (PyObject *)v; |
| |
| onError: |
| Py_XDECREF(v); |
| return NULL; |
| } |
| |
| /* create or adjust a UnicodeEncodeError */ |
| static void make_encode_exception(PyObject **exceptionObject, |
| const char *encoding, |
| const Py_UNICODE *unicode, Py_ssize_t size, |
| Py_ssize_t startpos, Py_ssize_t endpos, |
| const char *reason) |
| { |
| if (*exceptionObject == NULL) { |
| *exceptionObject = PyUnicodeEncodeError_Create( |
| encoding, unicode, size, startpos, endpos, reason); |
| } |
| else { |
| if (PyUnicodeEncodeError_SetStart(*exceptionObject, startpos)) |
| goto onError; |
| if (PyUnicodeEncodeError_SetEnd(*exceptionObject, endpos)) |
| goto onError; |
| if (PyUnicodeEncodeError_SetReason(*exceptionObject, reason)) |
| goto onError; |
| return; |
| onError: |
| Py_DECREF(*exceptionObject); |
| *exceptionObject = NULL; |
| } |
| } |
| |
| /* raises a UnicodeEncodeError */ |
| static void raise_encode_exception(PyObject **exceptionObject, |
| const char *encoding, |
| const Py_UNICODE *unicode, Py_ssize_t size, |
| Py_ssize_t startpos, Py_ssize_t endpos, |
| const char *reason) |
| { |
| make_encode_exception(exceptionObject, |
| encoding, unicode, size, startpos, endpos, reason); |
| if (*exceptionObject != NULL) |
| PyCodec_StrictErrors(*exceptionObject); |
| } |
| |
| /* error handling callback helper: |
| build arguments, call the callback and check the arguments, |
| put the result into newpos and return the replacement string, which |
| has to be freed by the caller */ |
| static PyObject *unicode_encode_call_errorhandler(const char *errors, |
| PyObject **errorHandler, |
| const char *encoding, const char *reason, |
| const Py_UNICODE *unicode, Py_ssize_t size, PyObject **exceptionObject, |
| Py_ssize_t startpos, Py_ssize_t endpos, |
| Py_ssize_t *newpos) |
| { |
| static char *argparse = "O!n;encoding error handler must return (unicode, int) tuple"; |
| |
| PyObject *restuple; |
| PyObject *resunicode; |
| |
| if (*errorHandler == NULL) { |
| *errorHandler = PyCodec_LookupError(errors); |
| if (*errorHandler == NULL) |
| return NULL; |
| } |
| |
| make_encode_exception(exceptionObject, |
| encoding, unicode, size, startpos, endpos, reason); |
| if (*exceptionObject == NULL) |
| return NULL; |
| |
| restuple = PyObject_CallFunctionObjArgs( |
| *errorHandler, *exceptionObject, NULL); |
| if (restuple == NULL) |
| return NULL; |
| if (!PyTuple_Check(restuple)) { |
| PyErr_Format(PyExc_TypeError, &argparse[4]); |
| Py_DECREF(restuple); |
| return NULL; |
| } |
| if (!PyArg_ParseTuple(restuple, argparse, &PyUnicode_Type, |
| &resunicode, newpos)) { |
| Py_DECREF(restuple); |
| return NULL; |
| } |
| if (*newpos<0) |
| *newpos = size+*newpos; |
| if (*newpos<0 || *newpos>size) { |
| PyErr_Format(PyExc_IndexError, "position %zd from error handler out of bounds", *newpos); |
| Py_DECREF(restuple); |
| return NULL; |
| } |
| Py_INCREF(resunicode); |
| Py_DECREF(restuple); |
| return resunicode; |
| } |
| |
| static PyObject *unicode_encode_ucs1(const Py_UNICODE *p, |
| Py_ssize_t size, |
| const char *errors, |
| int limit) |
| { |
| /* output object */ |
| PyObject *res; |
| /* pointers to the beginning and end+1 of input */ |
| const Py_UNICODE *startp = p; |
| const Py_UNICODE *endp = p + size; |
| /* pointer to the beginning of the unencodable characters */ |
| /* const Py_UNICODE *badp = NULL; */ |
| /* pointer into the output */ |
| char *str; |
| /* current output position */ |
| Py_ssize_t respos = 0; |
| Py_ssize_t ressize; |
| const char *encoding = (limit == 256) ? "latin-1" : "ascii"; |
| const char *reason = (limit == 256) ? "ordinal not in range(256)" : "ordinal not in range(128)"; |
| PyObject *errorHandler = NULL; |
| PyObject *exc = NULL; |
| /* the following variable is used for caching string comparisons |
| * -1=not initialized, 0=unknown, 1=strict, 2=replace, 3=ignore, 4=xmlcharrefreplace */ |
| int known_errorHandler = -1; |
| |
| /* allocate enough for a simple encoding without |
| replacements, if we need more, we'll resize */ |
| res = PyString_FromStringAndSize(NULL, size); |
| if (res == NULL) |
| goto onError; |
| if (size == 0) |
| return res; |
| str = PyString_AS_STRING(res); |
| ressize = size; |
| |
| while (p<endp) { |
| Py_UNICODE c = *p; |
| |
| /* can we encode this? */ |
| if (c<limit) { |
| /* no overflow check, because we know that the space is enough */ |
| *str++ = (char)c; |
| ++p; |
| } |
| else { |
| Py_ssize_t unicodepos = p-startp; |
| Py_ssize_t requiredsize; |
| PyObject *repunicode; |
| Py_ssize_t repsize; |
| Py_ssize_t newpos; |
| Py_ssize_t respos; |
| Py_UNICODE *uni2; |
| /* startpos for collecting unencodable chars */ |
| const Py_UNICODE *collstart = p; |
| const Py_UNICODE *collend = p; |
| /* find all unecodable characters */ |
| while ((collend < endp) && ((*collend)>=limit)) |
| ++collend; |
| /* cache callback name lookup (if not done yet, i.e. it's the first error) */ |
| if (known_errorHandler==-1) { |
| if ((errors==NULL) || (!strcmp(errors, "strict"))) |
| known_errorHandler = 1; |
| else if (!strcmp(errors, "replace")) |
| known_errorHandler = 2; |
| else if (!strcmp(errors, "ignore")) |
| known_errorHandler = 3; |
| else if (!strcmp(errors, "xmlcharrefreplace")) |
| known_errorHandler = 4; |
| else |
| known_errorHandler = 0; |
| } |
| switch (known_errorHandler) { |
| case 1: /* strict */ |
| raise_encode_exception(&exc, encoding, startp, size, collstart-startp, collend-startp, reason); |
| goto onError; |
| case 2: /* replace */ |
| while (collstart++<collend) |
| *str++ = '?'; /* fall through */ |
| case 3: /* ignore */ |
| p = collend; |
| break; |
| case 4: /* xmlcharrefreplace */ |
| respos = str-PyString_AS_STRING(res); |
| /* determine replacement size (temporarily (mis)uses p) */ |
| for (p = collstart, repsize = 0; p < collend; ++p) { |
| if (*p<10) |
| repsize += 2+1+1; |
| else if (*p<100) |
| repsize += 2+2+1; |
| else if (*p<1000) |
| repsize += 2+3+1; |
| else if (*p<10000) |
| repsize += 2+4+1; |
| #ifndef Py_UNICODE_WIDE |
| else |
| repsize += 2+5+1; |
| #else |
| else if (*p<100000) |
| repsize += 2+5+1; |
| else if (*p<1000000) |
| repsize += 2+6+1; |
| else |
| repsize += 2+7+1; |
| #endif |
| } |
| requiredsize = respos+repsize+(endp-collend); |
| if (requiredsize > ressize) { |
| if (requiredsize<2*ressize) |
| requiredsize = 2*ressize; |
| if (_PyString_Resize(&res, requiredsize)) |
| goto onError; |
| str = PyString_AS_STRING(res) + respos; |
| ressize = requiredsize; |
| } |
| /* generate replacement (temporarily (mis)uses p) */ |
| for (p = collstart; p < collend; ++p) { |
| str += sprintf(str, "&#%d;", (int)*p); |
| } |
| p = collend; |
| break; |
| default: |
| repunicode = unicode_encode_call_errorhandler(errors, &errorHandler, |
| encoding, reason, startp, size, &exc, |
| collstart-startp, collend-startp, &newpos); |
| if (repunicode == NULL) |
| goto onError; |
| /* need more space? (at least enough for what we |
| have+the replacement+the rest of the string, so |
| we won't have to check space for encodable characters) */ |
| respos = str-PyString_AS_STRING(res); |
| repsize = PyUnicode_GET_SIZE(repunicode); |
| requiredsize = respos+repsize+(endp-collend); |
| if (requiredsize > ressize) { |
| if (requiredsize<2*ressize) |
| requiredsize = 2*ressize; |
| if (_PyString_Resize(&res, requiredsize)) { |
| Py_DECREF(repunicode); |
| goto onError; |
| } |
| str = PyString_AS_STRING(res) + respos; |
| ressize = requiredsize; |
| } |
| /* check if there is anything unencodable in the replacement |
| and copy it to the output */ |
| for (uni2 = PyUnicode_AS_UNICODE(repunicode);repsize-->0; ++uni2, ++str) { |
| c = *uni2; |
| if (c >= limit) { |
| raise_encode_exception(&exc, encoding, startp, size, |
| unicodepos, unicodepos+1, reason); |
| Py_DECREF(repunicode); |
| goto onError; |
| } |
| *str = (char)c; |
| } |
| p = startp + newpos; |
| Py_DECREF(repunicode); |
| } |
| } |
| } |
| /* Resize if we allocated to much */ |
| respos = str-PyString_AS_STRING(res); |
| if (respos<ressize) |
| /* If this falls res will be NULL */ |
| _PyString_Resize(&res, respos); |
| Py_XDECREF(errorHandler); |
| Py_XDECREF(exc); |
| return res; |
| |
| onError: |
| Py_XDECREF(res); |
| Py_XDECREF(errorHandler); |
| Py_XDECREF(exc); |
| return NULL; |
| } |
| |
| PyObject *PyUnicode_EncodeLatin1(const Py_UNICODE *p, |
| Py_ssize_t size, |
| const char *errors) |
| { |
| return unicode_encode_ucs1(p, size, errors, 256); |
| } |
| |
| PyObject *PyUnicode_AsLatin1String(PyObject *unicode) |
| { |
| if (!PyUnicode_Check(unicode)) { |
| PyErr_BadArgument(); |
| return NULL; |
| } |
| return PyUnicode_EncodeLatin1(PyUnicode_AS_UNICODE(unicode), |
| PyUnicode_GET_SIZE(unicode), |
| NULL); |
| } |
| |
| /* --- 7-bit ASCII Codec -------------------------------------------------- */ |
| |
| PyObject *PyUnicode_DecodeASCII(const char *s, |
| Py_ssize_t size, |
| const char *errors) |
| { |
| const char *starts = s; |
| PyUnicodeObject *v; |
| Py_UNICODE *p; |
| Py_ssize_t startinpos; |
| Py_ssize_t endinpos; |
| Py_ssize_t outpos; |
| const char *e; |
| PyObject *errorHandler = NULL; |
| PyObject *exc = NULL; |
| |
| /* ASCII is equivalent to the first 128 ordinals in Unicode. */ |
| if (size == 1 && *(unsigned char*)s < 128) { |
| Py_UNICODE r = *(unsigned char*)s; |
| return PyUnicode_FromUnicode(&r, 1); |
| } |
| |
| v = _PyUnicode_New(size); |
| if (v == NULL) |
| goto onError; |
| if (size == 0) |
| return (PyObject *)v; |
| p = PyUnicode_AS_UNICODE(v); |
| e = s + size; |
| while (s < e) { |
| register unsigned char c = (unsigned char)*s; |
| if (c < 128) { |
| *p++ = c; |
| ++s; |
| } |
| else { |
| startinpos = s-starts; |
| endinpos = startinpos + 1; |
| outpos = p - (Py_UNICODE *)PyUnicode_AS_UNICODE(v); |
| if (unicode_decode_call_errorhandler( |
| errors, &errorHandler, |
| "ascii", "ordinal not in range(128)", |
| starts, size, &startinpos, &endinpos, &exc, &s, |
| (PyObject **)&v, &outpos, &p)) |
| goto onError; |
| } |
| } |
| if (p - PyUnicode_AS_UNICODE(v) < PyString_GET_SIZE(v)) |
| if (_PyUnicode_Resize(&v, p - PyUnicode_AS_UNICODE(v)) < 0) |
| goto onError; |
| Py_XDECREF(errorHandler); |
| Py_XDECREF(exc); |
| return (PyObject *)v; |
| |
| onError: |
| Py_XDECREF(v); |
| Py_XDECREF(errorHandler); |
| Py_XDECREF(exc); |
| return NULL; |
| } |
| |
| PyObject *PyUnicode_EncodeASCII(const Py_UNICODE *p, |
| Py_ssize_t size, |
| const char *errors) |
| { |
| return unicode_encode_ucs1(p, size, errors, 128); |
| } |
| |
| PyObject *PyUnicode_AsASCIIString(PyObject *unicode) |
| { |
| if (!PyUnicode_Check(unicode)) { |
| PyErr_BadArgument(); |
| return NULL; |
| } |
| return PyUnicode_EncodeASCII(PyUnicode_AS_UNICODE(unicode), |
| PyUnicode_GET_SIZE(unicode), |
| NULL); |
| } |
| |
| #if defined(MS_WINDOWS) && defined(HAVE_USABLE_WCHAR_T) |
| |
| /* --- MBCS codecs for Windows -------------------------------------------- */ |
| |
| PyObject *PyUnicode_DecodeMBCS(const char *s, |
| Py_ssize_t size, |
| const char *errors) |
| { |
| PyUnicodeObject *v; |
| Py_UNICODE *p; |
| DWORD usize; |
| |
| /* First get the size of the result */ |
| assert(size < INT_MAX); |
| usize = MultiByteToWideChar(CP_ACP, 0, s, (int)size, NULL, 0); |
| if (size > 0 && usize==0) |
| return PyErr_SetFromWindowsErrWithFilename(0, NULL); |
| |
| v = _PyUnicode_New(usize); |
| if (v == NULL) |
| return NULL; |
| if (usize == 0) |
| return (PyObject *)v; |
| p = PyUnicode_AS_UNICODE(v); |
| if (0 == MultiByteToWideChar(CP_ACP, 0, s, (int)size, p, usize)) { |
| Py_DECREF(v); |
| return PyErr_SetFromWindowsErrWithFilename(0, NULL); |
| } |
| |
| return (PyObject *)v; |
| } |
| |
| PyObject *PyUnicode_EncodeMBCS(const Py_UNICODE *p, |
| Py_ssize_t size, |
| const char *errors) |
| { |
| PyObject *repr; |
| char *s; |
| DWORD mbcssize; |
| |
| /* If there are no characters, bail now! */ |
| if (size==0) |
| return PyString_FromString(""); |
| |
| /* First get the size of the result */ |
| assert(size<INT_MAX); |
| mbcssize = WideCharToMultiByte(CP_ACP, 0, p, (int)size, NULL, 0, NULL, NULL); |
| if (mbcssize==0) |
| return PyErr_SetFromWindowsErrWithFilename(0, NULL); |
| |
| repr = PyString_FromStringAndSize(NULL, mbcssize); |
| if (repr == NULL) |
| return NULL; |
| if (mbcssize == 0) |
| return repr; |
| |
| /* Do the conversion */ |
| s = PyString_AS_STRING(repr); |
| assert(size < INT_MAX); |
| if (0 == WideCharToMultiByte(CP_ACP, 0, p, (int)size, s, mbcssize, NULL, NULL)) { |
| Py_DECREF(repr); |
| return PyErr_SetFromWindowsErrWithFilename(0, NULL); |
| } |
| return repr; |
| } |
| |
| PyObject *PyUnicode_AsMBCSString(PyObject *unicode) |
| { |
| if (!PyUnicode_Check(unicode)) { |
| PyErr_BadArgument(); |
| return NULL; |
| } |
| return PyUnicode_EncodeMBCS(PyUnicode_AS_UNICODE(unicode), |
| PyUnicode_GET_SIZE(unicode), |
| NULL); |
| } |
| |
| #endif /* MS_WINDOWS */ |
| |
| /* --- Character Mapping Codec -------------------------------------------- */ |
| |
| PyObject *PyUnicode_DecodeCharmap(const char *s, |
| Py_ssize_t size, |
| PyObject *mapping, |
| const char *errors) |
| { |
| const char *starts = s; |
| Py_ssize_t startinpos; |
| Py_ssize_t endinpos; |
| Py_ssize_t outpos; |
| const char *e; |
| PyUnicodeObject *v; |
| Py_UNICODE *p; |
| Py_ssize_t extrachars = 0; |
| PyObject *errorHandler = NULL; |
| PyObject *exc = NULL; |
| Py_UNICODE *mapstring = NULL; |
| Py_ssize_t maplen = 0; |
| |
| /* Default to Latin-1 */ |
| if (mapping == NULL) |
| return PyUnicode_DecodeLatin1(s, size, errors); |
| |
| v = _PyUnicode_New(size); |
| if (v == NULL) |
| goto onError; |
| if (size == 0) |
| return (PyObject *)v; |
| p = PyUnicode_AS_UNICODE(v); |
| e = s + size; |
| if (PyUnicode_CheckExact(mapping)) { |
| mapstring = PyUnicode_AS_UNICODE(mapping); |
| maplen = PyUnicode_GET_SIZE(mapping); |
| while (s < e) { |
| unsigned char ch = *s; |
| Py_UNICODE x = 0xfffe; /* illegal value */ |
| |
| if (ch < maplen) |
| x = mapstring[ch]; |
| |
| if (x == 0xfffe) { |
| /* undefined mapping */ |
| outpos = p-PyUnicode_AS_UNICODE(v); |
| startinpos = s-starts; |
| endinpos = startinpos+1; |
| if (unicode_decode_call_errorhandler( |
| errors, &errorHandler, |
| "charmap", "character maps to <undefined>", |
| starts, size, &startinpos, &endinpos, &exc, &s, |
| (PyObject **)&v, &outpos, &p)) { |
| goto onError; |
| } |
| continue; |
| } |
| *p++ = x; |
| ++s; |
| } |
| } |
| else { |
| while (s < e) { |
| unsigned char ch = *s; |
| PyObject *w, *x; |
| |
| /* Get mapping (char ordinal -> integer, Unicode char or None) */ |
| w = PyInt_FromLong((long)ch); |
| if (w == NULL) |
| goto onError; |
| x = PyObject_GetItem(mapping, w); |
| Py_DECREF(w); |
| if (x == NULL) { |
| if (PyErr_ExceptionMatches(PyExc_LookupError)) { |
| /* No mapping found means: mapping is undefined. */ |
| PyErr_Clear(); |
| x = Py_None; |
| Py_INCREF(x); |
| } else |
| goto onError; |
| } |
| |
| /* Apply mapping */ |
| if (PyInt_Check(x)) { |
| long value = PyInt_AS_LONG(x); |
| if (value < 0 || value > 65535) { |
| PyErr_SetString(PyExc_TypeError, |
| "character mapping must be in range(65536)"); |
| Py_DECREF(x); |
| goto onError; |
| } |
| *p++ = (Py_UNICODE)value; |
| } |
| else if (x == Py_None) { |
| /* undefined mapping */ |
| outpos = p-PyUnicode_AS_UNICODE(v); |
| startinpos = s-starts; |
| endinpos = startinpos+1; |
| if (unicode_decode_call_errorhandler( |
| errors, &errorHandler, |
| "charmap", "character maps to <undefined>", |
| starts, size, &startinpos, &endinpos, &exc, &s, |
| (PyObject **)&v, &outpos, &p)) { |
| Py_DECREF(x); |
| goto onError; |
| } |
| Py_DECREF(x); |
| continue; |
| } |
| else if (PyUnicode_Check(x)) { |
| Py_ssize_t targetsize = PyUnicode_GET_SIZE(x); |
| |
| if (targetsize == 1) |
| /* 1-1 mapping */ |
| *p++ = *PyUnicode_AS_UNICODE(x); |
| |
| else if (targetsize > 1) { |
| /* 1-n mapping */ |
| if (targetsize > extrachars) { |
| /* resize first */ |
| Py_ssize_t oldpos = p - PyUnicode_AS_UNICODE(v); |
| Py_ssize_t needed = (targetsize - extrachars) + \ |
| (targetsize << 2); |
| extrachars += needed; |
| if (_PyUnicode_Resize(&v, |
| PyUnicode_GET_SIZE(v) + needed) < 0) { |
| Py_DECREF(x); |
| goto onError; |
| } |
| p = PyUnicode_AS_UNICODE(v) + oldpos; |
| } |
| Py_UNICODE_COPY(p, |
| PyUnicode_AS_UNICODE(x), |
| targetsize); |
| p += targetsize; |
| extrachars -= targetsize; |
| } |
| /* 1-0 mapping: skip the character */ |
| } |
| else { |
| /* wrong return value */ |
| PyErr_SetString(PyExc_TypeError, |
| "character mapping must return integer, None or unicode"); |
| Py_DECREF(x); |
| goto onError; |
| } |
| Py_DECREF(x); |
| ++s; |
| } |
| } |
| if (p - PyUnicode_AS_UNICODE(v) < PyUnicode_GET_SIZE(v)) |
| if (_PyUnicode_Resize(&v, p - PyUnicode_AS_UNICODE(v)) < 0) |
| goto onError; |
| Py_XDECREF(errorHandler); |
| Py_XDECREF(exc); |
| return (PyObject *)v; |
| |
| onError: |
| Py_XDECREF(errorHandler); |
| Py_XDECREF(exc); |
| Py_XDECREF(v); |
| return NULL; |
| } |
| |
| /* Charmap encoding: the lookup table */ |
| |
| struct encoding_map{ |
| PyObject_HEAD |
| unsigned char level1[32]; |
| int count2, count3; |
| unsigned char level23[1]; |
| }; |
| |
| static PyObject* |
| encoding_map_size(PyObject *obj, PyObject* args) |
| { |
| struct encoding_map *map = (struct encoding_map*)obj; |
| return PyInt_FromLong(sizeof(*map) - 1 + 16*map->count2 + |
| 128*map->count3); |
| } |
| |
| static PyMethodDef encoding_map_methods[] = { |
| {"size", encoding_map_size, METH_NOARGS, |
| PyDoc_STR("Return the size (in bytes) of this object") }, |
| { 0 } |
| }; |
| |
| static void |
| encoding_map_dealloc(PyObject* o) |
| { |
| PyObject_FREE(o); |
| } |
| |
| static PyTypeObject EncodingMapType = { |
| PyObject_HEAD_INIT(NULL) |
| 0, /*ob_size*/ |
| "EncodingMap", /*tp_name*/ |
| sizeof(struct encoding_map), /*tp_basicsize*/ |
| 0, /*tp_itemsize*/ |
| /* methods */ |
| encoding_map_dealloc, /*tp_dealloc*/ |
| 0, /*tp_print*/ |
| 0, /*tp_getattr*/ |
| 0, /*tp_setattr*/ |
| 0, /*tp_compare*/ |
| 0, /*tp_repr*/ |
| 0, /*tp_as_number*/ |
| 0, /*tp_as_sequence*/ |
| 0, /*tp_as_mapping*/ |
| 0, /*tp_hash*/ |
| 0, /*tp_call*/ |
| 0, /*tp_str*/ |
| 0, /*tp_getattro*/ |
| 0, /*tp_setattro*/ |
| 0, /*tp_as_buffer*/ |
| Py_TPFLAGS_DEFAULT, /*tp_flags*/ |
| 0, /*tp_doc*/ |
| 0, /*tp_traverse*/ |
| 0, /*tp_clear*/ |
| 0, /*tp_richcompare*/ |
| 0, /*tp_weaklistoffset*/ |
| 0, /*tp_iter*/ |
| 0, /*tp_iternext*/ |
| encoding_map_methods, /*tp_methods*/ |
| 0, /*tp_members*/ |
| 0, /*tp_getset*/ |
| 0, /*tp_base*/ |
| 0, /*tp_dict*/ |
| 0, /*tp_descr_get*/ |
| 0, /*tp_descr_set*/ |
| 0, /*tp_dictoffset*/ |
| 0, /*tp_init*/ |
| 0, /*tp_alloc*/ |
| 0, /*tp_new*/ |
| 0, /*tp_free*/ |
| 0, /*tp_is_gc*/ |
| }; |
| |
| PyObject* |
| PyUnicode_BuildEncodingMap(PyObject* string) |
| { |
| Py_UNICODE *decode; |
| PyObject *result; |
| struct encoding_map *mresult; |
| int i; |
| int need_dict = 0; |
| unsigned char level1[32]; |
| unsigned char level2[512]; |
| unsigned char *mlevel1, *mlevel2, *mlevel3; |
| int count2 = 0, count3 = 0; |
| |
| if (!PyUnicode_Check(string) || PyUnicode_GetSize(string) != 256) { |
| PyErr_BadArgument(); |
| return NULL; |
| } |
| decode = PyUnicode_AS_UNICODE(string); |
| memset(level1, 0xFF, sizeof level1); |
| memset(level2, 0xFF, sizeof level2); |
| |
| /* If there isn't a one-to-one mapping of NULL to \0, |
| or if there are non-BMP characters, we need to use |
| a mapping dictionary. */ |
| if (decode[0] != 0) |
| need_dict = 1; |
| for (i = 1; i < 256; i++) { |
| int l1, l2; |
| if (decode[i] == 0 |
| #ifdef Py_UNICODE_WIDE |
| || decode[i] > 0xFFFF |
| #endif |
| ) { |
| need_dict = 1; |
| break; |
| } |
| if (decode[i] == 0xFFFE) |
| /* unmapped character */ |
| continue; |
| l1 = decode[i] >> 11; |
| l2 = decode[i] >> 7; |
| if (level1[l1] == 0xFF) |
| level1[l1] = count2++; |
| if (level2[l2] == 0xFF) |
| level2[l2] = count3++; |
| } |
| |
| if (count2 >= 0xFF || count3 >= 0xFF) |
| need_dict = 1; |
| |
| if (need_dict) { |
| PyObject *result = PyDict_New(); |
| PyObject *key, *value; |
| if (!result) |
| return NULL; |
| for (i = 0; i < 256; i++) { |
| key = value = NULL; |
| key = PyInt_FromLong(decode[i]); |
| value = PyInt_FromLong(i); |
| if (!key || !value) |
| goto failed1; |
| if (PyDict_SetItem(result, key, value) == -1) |
| goto failed1; |
| Py_DECREF(key); |
| Py_DECREF(value); |
| } |
| return result; |
| failed1: |
| Py_XDECREF(key); |
| Py_XDECREF(value); |
| Py_DECREF(result); |
| return NULL; |
| } |
| |
| /* Create a three-level trie */ |
| result = PyObject_MALLOC(sizeof(struct encoding_map) + |
| 16*count2 + 128*count3 - 1); |
| if (!result) |
| return PyErr_NoMemory(); |
| PyObject_Init(result, &EncodingMapType); |
| mresult = (struct encoding_map*)result; |
| mresult->count2 = count2; |
| mresult->count3 = count3; |
| mlevel1 = mresult->level1; |
| mlevel2 = mresult->level23; |
| mlevel3 = mresult->level23 + 16*count2; |
| memcpy(mlevel1, level1, 32); |
| memset(mlevel2, 0xFF, 16*count2); |
| memset(mlevel3, 0, 128*count3); |
| count3 = 0; |
| for (i = 1; i < 256; i++) { |
| int o1, o2, o3, i2, i3; |
| if (decode[i] == 0xFFFE) |
| /* unmapped character */ |
| continue; |
| o1 = decode[i]>>11; |
| o2 = (decode[i]>>7) & 0xF; |
| i2 = 16*mlevel1[o1] + o2; |
| if (mlevel2[i2] == 0xFF) |
| mlevel2[i2] = count3++; |
| o3 = decode[i] & 0x7F; |
| i3 = 128*mlevel2[i2] + o3; |
| mlevel3[i3] = i; |
| } |
| return result; |
| } |
| |
| static int |
| encoding_map_lookup(Py_UNICODE c, PyObject *mapping) |
| { |
| struct encoding_map *map = (struct encoding_map*)mapping; |
| int l1 = c>>11; |
| int l2 = (c>>7) & 0xF; |
| int l3 = c & 0x7F; |
| int i; |
| |
| #ifdef Py_UNICODE_WIDE |
| if (c > 0xFFFF) { |
| return -1; |
| } |
| #endif |
| if (c == 0) |
| return 0; |
| /* level 1*/ |
| i = map->level1[l1]; |
| if (i == 0xFF) { |
| return -1; |
| } |
| /* level 2*/ |
| i = map->level23[16*i+l2]; |
| if (i == 0xFF) { |
| return -1; |
| } |
| /* level 3 */ |
| i = map->level23[16*map->count2 + 128*i + l3]; |
| if (i == 0) { |
| return -1; |
| } |
| return i; |
| } |
| |
| /* Lookup the character ch in the mapping. If the character |
| can't be found, Py_None is returned (or NULL, if another |
| error occurred). */ |
| static PyObject *charmapencode_lookup(Py_UNICODE c, PyObject *mapping) |
| { |
| PyObject *w = PyInt_FromLong((long)c); |
| PyObject *x; |
| |
| if (w == NULL) |
| return NULL; |
| x = PyObject_GetItem(mapping, w); |
| Py_DECREF(w); |
| if (x == NULL) { |
| if (PyErr_ExceptionMatches(PyExc_LookupError)) { |
| /* No mapping found means: mapping is undefined. */ |
| PyErr_Clear(); |
| x = Py_None; |
| Py_INCREF(x); |
| return x; |
| } else |
| return NULL; |
| } |
| else if (x == Py_None) |
| return x; |
| else if (PyInt_Check(x)) { |
| long value = PyInt_AS_LONG(x); |
| if (value < 0 || value > 255) { |
| PyErr_SetString(PyExc_TypeError, |
| "character mapping must be in range(256)"); |
| Py_DECREF(x); |
| return NULL; |
| } |
| return x; |
| } |
| else if (PyString_Check(x)) |
| return x; |
| else { |
| /* wrong return value */ |
| PyErr_SetString(PyExc_TypeError, |
| "character mapping must return integer, None or str"); |
| Py_DECREF(x); |
| return NULL; |
| } |
| } |
| |
| static int |
| charmapencode_resize(PyObject **outobj, Py_ssize_t *outpos, Py_ssize_t requiredsize) |
| { |
| Py_ssize_t outsize = PyString_GET_SIZE(*outobj); |
| /* exponentially overallocate to minimize reallocations */ |
| if (requiredsize < 2*outsize) |
| requiredsize = 2*outsize; |
| if (_PyString_Resize(outobj, requiredsize)) { |
| return 0; |
| } |
| return 1; |
| } |
| |
| typedef enum charmapencode_result { |
| enc_SUCCESS, enc_FAILED, enc_EXCEPTION |
| }charmapencode_result; |
| /* lookup the character, put the result in the output string and adjust |
| various state variables. Reallocate the output string if not enough |
| space is available. Return a new reference to the object that |
| was put in the output buffer, or Py_None, if the mapping was undefined |
| (in which case no character was written) or NULL, if a |
| reallocation error occurred. The caller must decref the result */ |
| static |
| charmapencode_result charmapencode_output(Py_UNICODE c, PyObject *mapping, |
| PyObject **outobj, Py_ssize_t *outpos) |
| { |
| PyObject *rep; |
| char *outstart; |
| Py_ssize_t outsize = PyString_GET_SIZE(*outobj); |
| |
| if (mapping->ob_type == &EncodingMapType) { |
| int res = encoding_map_lookup(c, mapping); |
| Py_ssize_t requiredsize = *outpos+1; |
| if (res == -1) |
| return enc_FAILED; |
| if (outsize<requiredsize) |
| if (!charmapencode_resize(outobj, outpos, requiredsize)) |
| return enc_EXCEPTION; |
| outstart = PyString_AS_STRING(*outobj); |
| outstart[(*outpos)++] = (char)res; |
| return enc_SUCCESS; |
| } |
| |
| rep = charmapencode_lookup(c, mapping); |
| if (rep==NULL) |
| return enc_EXCEPTION; |
| else if (rep==Py_None) { |
| Py_DECREF(rep); |
| return enc_FAILED; |
| } else { |
| if (PyInt_Check(rep)) { |
| Py_ssize_t requiredsize = *outpos+1; |
| if (outsize<requiredsize) |
| if (!charmapencode_resize(outobj, outpos, requiredsize)) { |
| Py_DECREF(rep); |
| return enc_EXCEPTION; |
| } |
| outstart = PyString_AS_STRING(*outobj); |
| outstart[(*outpos)++] = (char)PyInt_AS_LONG(rep); |
| } |
| else { |
| const char *repchars = PyString_AS_STRING(rep); |
| Py_ssize_t repsize = PyString_GET_SIZE(rep); |
| Py_ssize_t requiredsize = *outpos+repsize; |
| if (outsize<requiredsize) |
| if (!charmapencode_resize(outobj, outpos, requiredsize)) { |
| Py_DECREF(rep); |
| return enc_EXCEPTION; |
| } |
| outstart = PyString_AS_STRING(*outobj); |
| memcpy(outstart + *outpos, repchars, repsize); |
| *outpos += repsize; |
| } |
| } |
| Py_DECREF(rep); |
| return enc_SUCCESS; |
| } |
| |
| /* handle an error in PyUnicode_EncodeCharmap |
| Return 0 on success, -1 on error */ |
| static |
| int charmap_encoding_error( |
| const Py_UNICODE *p, Py_ssize_t size, Py_ssize_t *inpos, PyObject *mapping, |
| PyObject **exceptionObject, |
| int *known_errorHandler, PyObject **errorHandler, const char *errors, |
| PyObject **res, Py_ssize_t *respos) |
| { |
| PyObject *repunicode = NULL; /* initialize to prevent gcc warning */ |
| Py_ssize_t repsize; |
| Py_ssize_t newpos; |
| Py_UNICODE *uni2; |
| /* startpos for collecting unencodable chars */ |
| Py_ssize_t collstartpos = *inpos; |
| Py_ssize_t collendpos = *inpos+1; |
| Py_ssize_t collpos; |
| char *encoding = "charmap"; |
| char *reason = "character maps to <undefined>"; |
| charmapencode_result x; |
| |
| /* find all unencodable characters */ |
| while (collendpos < size) { |
| PyObject *rep; |
| if (mapping->ob_type == &EncodingMapType) { |
| int res = encoding_map_lookup(p[collendpos], mapping); |
| if (res != -1) |
| break; |
| ++collendpos; |
| continue; |
| } |
| |
| rep = charmapencode_lookup(p[collendpos], mapping); |
| if (rep==NULL) |
| return -1; |
| else if (rep!=Py_None) { |
| Py_DECREF(rep); |
| break; |
| } |
| Py_DECREF(rep); |
| ++collendpos; |
| } |
| /* cache callback name lookup |
| * (if not done yet, i.e. it's the first error) */ |
| if (*known_errorHandler==-1) { |
| if ((errors==NULL) || (!strcmp(errors, "strict"))) |
| *known_errorHandler = 1; |
| else if (!strcmp(errors, "replace")) |
| *known_errorHandler = 2; |
| else if (!strcmp(errors, "ignore")) |
| *known_errorHandler = 3; |
| else if (!strcmp(errors, "xmlcharrefreplace")) |
| *known_errorHandler = 4; |
| else |
| *known_errorHandler = 0; |
| } |
| switch (*known_errorHandler) { |
| case 1: /* strict */ |
| raise_encode_exception(exceptionObject, encoding, p, size, collstartpos, collendpos, reason); |
| return -1; |
| case 2: /* replace */ |
| for (collpos = collstartpos; collpos<collendpos; ++collpos) { |
| x = charmapencode_output('?', mapping, res, respos); |
| if (x==enc_EXCEPTION) { |
| return -1; |
| } |
| else if (x==enc_FAILED) { |
| raise_encode_exception(exceptionObject, encoding, p, size, collstartpos, collendpos, reason); |
| return -1; |
| } |
| } |
| /* fall through */ |
| case 3: /* ignore */ |
| *inpos = collendpos; |
| break; |
| case 4: /* xmlcharrefreplace */ |
| /* generate replacement (temporarily (mis)uses p) */ |
| for (collpos = collstartpos; collpos < collendpos; ++collpos) { |
| char buffer[2+29+1+1]; |
| char *cp; |
| sprintf(buffer, "&#%d;", (int)p[collpos]); |
| for (cp = buffer; *cp; ++cp) { |
| x = charmapencode_output(*cp, mapping, res, respos); |
| if (x==enc_EXCEPTION) |
| return -1; |
| else if (x==enc_FAILED) { |
| raise_encode_exception(exceptionObject, encoding, p, size, collstartpos, collendpos, reason); |
| return -1; |
| } |
| } |
| } |
| *inpos = collendpos; |
| break; |
| default: |
| repunicode = unicode_encode_call_errorhandler(errors, errorHandler, |
| encoding, reason, p, size, exceptionObject, |
| collstartpos, collendpos, &newpos); |
| if (repunicode == NULL) |
| return -1; |
| /* generate replacement */ |
| repsize = PyUnicode_GET_SIZE(repunicode); |
| for (uni2 = PyUnicode_AS_UNICODE(repunicode); repsize-->0; ++uni2) { |
| x = charmapencode_output(*uni2, mapping, res, respos); |
| if (x==enc_EXCEPTION) { |
| return -1; |
| } |
| else if (x==enc_FAILED) { |
| Py_DECREF(repunicode); |
| raise_encode_exception(exceptionObject, encoding, p, size, collstartpos, collendpos, reason); |
| return -1; |
| } |
| } |
| *inpos = newpos; |
| Py_DECREF(repunicode); |
| } |
| return 0; |
| } |
| |
| PyObject *PyUnicode_EncodeCharmap(const Py_UNICODE *p, |
| Py_ssize_t size, |
| PyObject *mapping, |
| const char *errors) |
| { |
| /* output object */ |
| PyObject *res = NULL; |
| /* current input position */ |
| Py_ssize_t inpos = 0; |
| /* current output position */ |
| Py_ssize_t respos = 0; |
| PyObject *errorHandler = NULL; |
| PyObject *exc = NULL; |
| /* the following variable is used for caching string comparisons |
| * -1=not initialized, 0=unknown, 1=strict, 2=replace, |
| * 3=ignore, 4=xmlcharrefreplace */ |
| int known_errorHandler = -1; |
| |
| /* Default to Latin-1 */ |
| if (mapping == NULL) |
| return PyUnicode_EncodeLatin1(p, size, errors); |
| |
| /* allocate enough for a simple encoding without |
| replacements, if we need more, we'll resize */ |
| res = PyString_FromStringAndSize(NULL, size); |
| if (res == NULL) |
| goto onError; |
| if (size == 0) |
| return res; |
| |
| while (inpos<size) { |
| /* try to encode it */ |
| charmapencode_result x = charmapencode_output(p[inpos], mapping, &res, &respos); |
| if (x==enc_EXCEPTION) /* error */ |
| goto onError; |
| if (x==enc_FAILED) { /* unencodable character */ |
| if (charmap_encoding_error(p, size, &inpos, mapping, |
| &exc, |
| &known_errorHandler, &errorHandler, errors, |
| &res, &respos)) { |
| goto onError; |
| } |
| } |
| else |
| /* done with this character => adjust input position */ |
| ++inpos; |
| } |
| |
| /* Resize if we allocated to much */ |
| if (respos<PyString_GET_SIZE(res)) { |
| if (_PyString_Resize(&res, respos)) |
| goto onError; |
| } |
| Py_XDECREF(exc); |
| Py_XDECREF(errorHandler); |
| return res; |
| |
| onError: |
| Py_XDECREF(res); |
| Py_XDECREF(exc); |
| Py_XDECREF(errorHandler); |
| return NULL; |
| } |
| |
| PyObject *PyUnicode_AsCharmapString(PyObject *unicode, |
| PyObject *mapping) |
| { |
| if (!PyUnicode_Check(unicode) || mapping == NULL) { |
| PyErr_BadArgument(); |
| return NULL; |
| } |
| return PyUnicode_EncodeCharmap(PyUnicode_AS_UNICODE(unicode), |
| PyUnicode_GET_SIZE(unicode), |
| mapping, |
| NULL); |
| } |
| |
| /* create or adjust a UnicodeTranslateError */ |
| static void make_translate_exception(PyObject **exceptionObject, |
| const Py_UNICODE *unicode, Py_ssize_t size, |
| Py_ssize_t startpos, Py_ssize_t endpos, |
| const char *reason) |
| { |
| if (*exceptionObject == NULL) { |
| *exceptionObject = PyUnicodeTranslateError_Create( |
| unicode, size, startpos, endpos, reason); |
| } |
| else { |
| if (PyUnicodeTranslateError_SetStart(*exceptionObject, startpos)) |
| goto onError; |
| if (PyUnicodeTranslateError_SetEnd(*exceptionObject, endpos)) |
| goto onError; |
| if (PyUnicodeTranslateError_SetReason(*exceptionObject, reason)) |
| goto onError; |
| return; |
| onError: |
| Py_DECREF(*exceptionObject); |
| *exceptionObject = NULL; |
| } |
| } |
| |
| /* raises a UnicodeTranslateError */ |
| static void raise_translate_exception(PyObject **exceptionObject, |
| const Py_UNICODE *unicode, Py_ssize_t size, |
| Py_ssize_t startpos, Py_ssize_t endpos, |
| const char *reason) |
| { |
| make_translate_exception(exceptionObject, |
| unicode, size, startpos, endpos, reason); |
| if (*exceptionObject != NULL) |
| PyCodec_StrictErrors(*exceptionObject); |
| } |
| |
| /* error handling callback helper: |
| build arguments, call the callback and check the arguments, |
| put the result into newpos and return the replacement string, which |
| has to be freed by the caller */ |
| static PyObject *unicode_translate_call_errorhandler(const char *errors, |
| PyObject **errorHandler, |
| const char *reason, |
| const Py_UNICODE *unicode, Py_ssize_t size, PyObject **exceptionObject, |
| Py_ssize_t startpos, Py_ssize_t endpos, |
| Py_ssize_t *newpos) |
| { |
| static char *argparse = "O!n;translating error handler must return (unicode, int) tuple"; |
| |
| Py_ssize_t i_newpos; |
| PyObject *restuple; |
| PyObject *resunicode; |
| |
| if (*errorHandler == NULL) { |
| *errorHandler = PyCodec_LookupError(errors); |
| if (*errorHandler == NULL) |
| return NULL; |
| } |
| |
| make_translate_exception(exceptionObject, |
| unicode, size, startpos, endpos, reason); |
| if (*exceptionObject == NULL) |
| return NULL; |
| |
| restuple = PyObject_CallFunctionObjArgs( |
| *errorHandler, *exceptionObject, NULL); |
| if (restuple == NULL) |
| return NULL; |
| if (!PyTuple_Check(restuple)) { |
| PyErr_Format(PyExc_TypeError, &argparse[4]); |
| Py_DECREF(restuple); |
| return NULL; |
| } |
| if (!PyArg_ParseTuple(restuple, argparse, &PyUnicode_Type, |
| &resunicode, &i_newpos)) { |
| Py_DECREF(restuple); |
| return NULL; |
| } |
| if (i_newpos<0) |
| *newpos = size+i_newpos; |
| else |
| *newpos = i_newpos; |
| if (*newpos<0 || *newpos>size) { |
| PyErr_Format(PyExc_IndexError, "position %zd from error handler out of bounds", *newpos); |
| Py_DECREF(restuple); |
| return NULL; |
| } |
| Py_INCREF(resunicode); |
| Py_DECREF(restuple); |
| return resunicode; |
| } |
| |
| /* Lookup the character ch in the mapping and put the result in result, |
| which must be decrefed by the caller. |
| Return 0 on success, -1 on error */ |
| static |
| int charmaptranslate_lookup(Py_UNICODE c, PyObject *mapping, PyObject **result) |
| { |
| PyObject *w = PyInt_FromLong((long)c); |
| PyObject *x; |
| |
| if (w == NULL) |
| return -1; |
| x = PyObject_GetItem(mapping, w); |
| Py_DECREF(w); |
| if (x == NULL) { |
| if (PyErr_ExceptionMatches(PyExc_LookupError)) { |
| /* No mapping found means: use 1:1 mapping. */ |
| PyErr_Clear(); |
| *result = NULL; |
| return 0; |
| } else |
| return -1; |
| } |
| else if (x == Py_None) { |
| *result = x; |
| return 0; |
| } |
| else if (PyInt_Check(x)) { |
| long value = PyInt_AS_LONG(x); |
| long max = PyUnicode_GetMax(); |
| if (value < 0 || value > max) { |
| PyErr_Format(PyExc_TypeError, |
| "character mapping must be in range(0x%lx)", max+1); |
| Py_DECREF(x); |
| return -1; |
| } |
| *result = x; |
| return 0; |
| } |
| else if (PyUnicode_Check(x)) { |
| *result = x; |
| return 0; |
| } |
| else { |
| /* wrong return value */ |
| PyErr_SetString(PyExc_TypeError, |
| "character mapping must return integer, None or unicode"); |
| Py_DECREF(x); |
| return -1; |
| } |
| } |
| /* ensure that *outobj is at least requiredsize characters long, |
| if not reallocate and adjust various state variables. |
| Return 0 on success, -1 on error */ |
| static |
| int charmaptranslate_makespace(PyObject **outobj, Py_UNICODE **outp, |
| Py_ssize_t requiredsize) |
| { |
| Py_ssize_t oldsize = PyUnicode_GET_SIZE(*outobj); |
| if (requiredsize > oldsize) { |
| /* remember old output position */ |
| Py_ssize_t outpos = *outp-PyUnicode_AS_UNICODE(*outobj); |
| /* exponentially overallocate to minimize reallocations */ |
| if (requiredsize < 2 * oldsize) |
| requiredsize = 2 * oldsize; |
| if (_PyUnicode_Resize(outobj, requiredsize) < 0) |
| return -1; |
| *outp = PyUnicode_AS_UNICODE(*outobj) + outpos; |
| } |
| return 0; |
| } |
| /* lookup the character, put the result in the output string and adjust |
| various state variables. Return a new reference to the object that |
| was put in the output buffer in *result, or Py_None, if the mapping was |
| undefined (in which case no character was written). |
| The called must decref result. |
| Return 0 on success, -1 on error. */ |
| static |
| int charmaptranslate_output(const Py_UNICODE *startinp, const Py_UNICODE *curinp, |
| Py_ssize_t insize, PyObject *mapping, PyObject **outobj, Py_UNICODE **outp, |
| PyObject **res) |
| { |
| if (charmaptranslate_lookup(*curinp, mapping, res)) |
| return -1; |
| if (*res==NULL) { |
| /* not found => default to 1:1 mapping */ |
| *(*outp)++ = *curinp; |
| } |
| else if (*res==Py_None) |
| ; |
| else if (PyInt_Check(*res)) { |
| /* no overflow check, because we know that the space is enough */ |
| *(*outp)++ = (Py_UNICODE)PyInt_AS_LONG(*res); |
| } |
| else if (PyUnicode_Check(*res)) { |
| Py_ssize_t repsize = PyUnicode_GET_SIZE(*res); |
| if (repsize==1) { |
| /* no overflow check, because we know that the space is enough */ |
| *(*outp)++ = *PyUnicode_AS_UNICODE(*res); |
| } |
| else if (repsize!=0) { |
| /* more than one character */ |
| Py_ssize_t requiredsize = (*outp-PyUnicode_AS_UNICODE(*outobj)) + |
| (insize - (curinp-startinp)) + |
| repsize - 1; |
| if (charmaptranslate_makespace(outobj, outp, requiredsize)) |
| return -1; |
| memcpy(*outp, PyUnicode_AS_UNICODE(*res), sizeof(Py_UNICODE)*repsize); |
| *outp += repsize; |
| } |
| } |
| else |
| return -1; |
| return 0; |
| } |
| |
| PyObject *PyUnicode_TranslateCharmap(const Py_UNICODE *p, |
| Py_ssize_t size, |
| PyObject *mapping, |
| const char *errors) |
| { |
| /* output object */ |
| PyObject *res = NULL; |
| /* pointers to the beginning and end+1 of input */ |
| const Py_UNICODE *startp = p; |
| const Py_UNICODE *endp = p + size; |
| /* pointer into the output */ |
| Py_UNICODE *str; |
| /* current output position */ |
| Py_ssize_t respos = 0; |
| char *reason = "character maps to <undefined>"; |
| PyObject *errorHandler = NULL; |
| PyObject *exc = NULL; |
| /* the following variable is used for caching string comparisons |
| * -1=not initialized, 0=unknown, 1=strict, 2=replace, |
| * 3=ignore, 4=xmlcharrefreplace */ |
| int known_errorHandler = -1; |
| |
| if (mapping == NULL) { |
| PyErr_BadArgument(); |
| return NULL; |
| } |
| |
| /* allocate enough for a simple 1:1 translation without |
| replacements, if we need more, we'll resize */ |
| res = PyUnicode_FromUnicode(NULL, size); |
| if (res == NULL) |
| goto onError; |
| if (size == 0) |
| return res; |
| str = PyUnicode_AS_UNICODE(res); |
| |
| while (p<endp) { |
| /* try to encode it */ |
| PyObject *x = NULL; |
| if (charmaptranslate_output(startp, p, size, mapping, &res, &str, &x)) { |
| Py_XDECREF(x); |
| goto onError; |
| } |
| Py_XDECREF(x); |
| if (x!=Py_None) /* it worked => adjust input pointer */ |
| ++p; |
| else { /* untranslatable character */ |
| PyObject *repunicode = NULL; /* initialize to prevent gcc warning */ |
| Py_ssize_t repsize; |
| Py_ssize_t newpos; |
| Py_UNICODE *uni2; |
| /* startpos for collecting untranslatable chars */ |
| const Py_UNICODE *collstart = p; |
| const Py_UNICODE *collend = p+1; |
| const Py_UNICODE *coll; |
| |
| /* find all untranslatable characters */ |
| while (collend < endp) { |
| if (charmaptranslate_lookup(*collend, mapping, &x)) |
| goto onError; |
| Py_XDECREF(x); |
| if (x!=Py_None) |
| break; |
| ++collend; |
| } |
| /* cache callback name lookup |
| * (if not done yet, i.e. it's the first error) */ |
| if (known_errorHandler==-1) { |
| if ((errors==NULL) || (!strcmp(errors, "strict"))) |
| known_errorHandler = 1; |
| else if (!strcmp(errors, "replace")) |
| known_errorHandler = 2; |
| else if (!strcmp(errors, "ignore")) |
| known_errorHandler = 3; |
| else if (!strcmp(errors, "xmlcharrefreplace")) |
| known_errorHandler = 4; |
| else |
| known_errorHandler = 0; |
| } |
| switch (known_errorHandler) { |
| case 1: /* strict */ |
| raise_translate_exception(&exc, startp, size, collstart-startp, collend-startp, reason); |
| goto onError; |
| case 2: /* replace */ |
| /* No need to check for space, this is a 1:1 replacement */ |
| for (coll = collstart; coll<collend; ++coll) |
| *str++ = '?'; |
| /* fall through */ |
| case 3: /* ignore */ |
| p = collend; |
| break; |
| case 4: /* xmlcharrefreplace */ |
| /* generate replacement (temporarily (mis)uses p) */ |
| for (p = collstart; p < collend; ++p) { |
| char buffer[2+29+1+1]; |
| char *cp; |
| sprintf(buffer, "&#%d;", (int)*p); |
| if (charmaptranslate_makespace(&res, &str, |
| (str-PyUnicode_AS_UNICODE(res))+strlen(buffer)+(endp-collend))) |
| goto onError; |
| for (cp = buffer; *cp; ++cp) |
| *str++ = *cp; |
| } |
| p = collend; |
| break; |
| default: |
| repunicode = unicode_translate_call_errorhandler(errors, &errorHandler, |
| reason, startp, size, &exc, |
| collstart-startp, collend-startp, &newpos); |
| if (repunicode == NULL) |
| goto onError; |
| /* generate replacement */ |
| repsize = PyUnicode_GET_SIZE(repunicode); |
| if (charmaptranslate_makespace(&res, &str, |
| (str-PyUnicode_AS_UNICODE(res))+repsize+(endp-collend))) { |
| Py_DECREF(repunicode); |
| goto onError; |
| } |
| for (uni2 = PyUnicode_AS_UNICODE(repunicode); repsize-->0; ++uni2) |
| *str++ = *uni2; |
| p = startp + newpos; |
| Py_DECREF(repunicode); |
| } |
| } |
| } |
| /* Resize if we allocated to much */ |
| respos = str-PyUnicode_AS_UNICODE(res); |
| if (respos<PyUnicode_GET_SIZE(res)) { |
| if (_PyUnicode_Resize(&res, respos) < 0) |
| goto onError; |
| } |
| Py_XDECREF(exc); |
| Py_XDECREF(errorHandler); |
| return res; |
| |
| onError: |
| Py_XDECREF(res); |
| Py_XDECREF(exc); |
| Py_XDECREF(errorHandler); |
| return NULL; |
| } |
| |
| PyObject *PyUnicode_Translate(PyObject *str, |
| PyObject *mapping, |
| const char *errors) |
| { |
| PyObject *result; |
| |
| str = PyUnicode_FromObject(str); |
| if (str == NULL) |
| goto onError; |
| result = PyUnicode_TranslateCharmap(PyUnicode_AS_UNICODE(str), |
| PyUnicode_GET_SIZE(str), |
| mapping, |
| errors); |
| Py_DECREF(str); |
| return result; |
| |
| onError: |
| Py_XDECREF(str); |
| return NULL; |
| } |
| |
| /* --- Decimal Encoder ---------------------------------------------------- */ |
| |
| int PyUnicode_EncodeDecimal(Py_UNICODE *s, |
| Py_ssize_t length, |
| char *output, |
| const char *errors) |
| { |
| Py_UNICODE *p, *end; |
| PyObject *errorHandler = NULL; |
| PyObject *exc = NULL; |
| const char *encoding = "decimal"; |
| const char *reason = "invalid decimal Unicode string"; |
| /* the following variable is used for caching string comparisons |
| * -1=not initialized, 0=unknown, 1=strict, 2=replace, 3=ignore, 4=xmlcharrefreplace */ |
| int known_errorHandler = -1; |
| |
| if (output == NULL) { |
| PyErr_BadArgument(); |
| return -1; |
| } |
| |
| p = s; |
| end = s + length; |
| while (p < end) { |
| register Py_UNICODE ch = *p; |
| int decimal; |
| PyObject *repunicode; |
| Py_ssize_t repsize; |
| Py_ssize_t newpos; |
| Py_UNICODE *uni2; |
| Py_UNICODE *collstart; |
| Py_UNICODE *collend; |
| |
| if (Py_UNICODE_ISSPACE(ch)) { |
| *output++ = ' '; |
| ++p; |
| continue; |
| } |
| decimal = Py_UNICODE_TODECIMAL(ch); |
| if (decimal >= 0) { |
| *output++ = '0' + decimal; |
| ++p; |
| continue; |
| } |
| if (0 < ch && ch < 256) { |
| *output++ = (char)ch; |
| ++p; |
| continue; |
| } |
| /* All other characters are considered unencodable */ |
| collstart = p; |
| collend = p+1; |
| while (collend < end) { |
| if ((0 < *collend && *collend < 256) || |
| !Py_UNICODE_ISSPACE(*collend) || |
| Py_UNICODE_TODECIMAL(*collend)) |
| break; |
| } |
| /* cache callback name lookup |
| * (if not done yet, i.e. it's the first error) */ |
| if (known_errorHandler==-1) { |
| if ((errors==NULL) || (!strcmp(errors, "strict"))) |
| known_errorHandler = 1; |
| else if (!strcmp(errors, "replace")) |
| known_errorHandler = 2; |
| else if (!strcmp(errors, "ignore")) |
| known_errorHandler = 3; |
| else if (!strcmp(errors, "xmlcharrefreplace")) |
| known_errorHandler = 4; |
| else |
| known_errorHandler = 0; |
| } |
| switch (known_errorHandler) { |
| case 1: /* strict */ |
| raise_encode_exception(&exc, encoding, s, length, collstart-s, collend-s, reason); |
| goto onError; |
| case 2: /* replace */ |
| for (p = collstart; p < collend; ++p) |
| *output++ = '?'; |
| /* fall through */ |
| case 3: /* ignore */ |
| p = collend; |
| break; |
| case 4: /* xmlcharrefreplace */ |
| /* generate replacement (temporarily (mis)uses p) */ |
| for (p = collstart; p < collend; ++p) |
| output += sprintf(output, "&#%d;", (int)*p); |
| p = collend; |
| break; |
| default: |
| repunicode = unicode_encode_call_errorhandler(errors, &errorHandler, |
| encoding, reason, s, length, &exc, |
| collstart-s, collend-s, &newpos); |
| if (repunicode == NULL) |
| goto onError; |
| /* generate replacement */ |
| repsize = PyUnicode_GET_SIZE(repunicode); |
| for (uni2 = PyUnicode_AS_UNICODE(repunicode); repsize-->0; ++uni2) { |
| Py_UNICODE ch = *uni2; |
| if (Py_UNICODE_ISSPACE(ch)) |
| *output++ = ' '; |
| else { |
| decimal = Py_UNICODE_TODECIMAL(ch); |
| if (decimal >= 0) |
| *output++ = '0' + decimal; |
| else if (0 < ch && ch < 256) |
| *output++ = (char)ch; |
| else { |
| Py_DECREF(repunicode); |
| raise_encode_exception(&exc, encoding, |
| s, length, collstart-s, collend-s, reason); |
| goto onError; |
| } |
| } |
| } |
| p = s + newpos; |
| Py_DECREF(repunicode); |
| } |
| } |
| /* 0-terminate the output string */ |
| *output++ = '\0'; |
| Py_XDECREF(exc); |
| Py_XDECREF(errorHandler); |
| return 0; |
| |
| onError: |
| Py_XDECREF(exc); |
| Py_XDECREF(errorHandler); |
| return -1; |
| } |
| |
| /* --- Helpers ------------------------------------------------------------ */ |
| |
| #define STRINGLIB_CHAR Py_UNICODE |
| |
| #define STRINGLIB_LEN PyUnicode_GET_SIZE |
| #define STRINGLIB_NEW PyUnicode_FromUnicode |
| #define STRINGLIB_STR PyUnicode_AS_UNICODE |
| |
| Py_LOCAL_INLINE(int) |
| STRINGLIB_CMP(const Py_UNICODE* str, const Py_UNICODE* other, Py_ssize_t len) |
| { |
| if (str[0] != other[0]) |
| return 1; |
| return memcmp((void*) str, (void*) other, len * sizeof(Py_UNICODE)); |
| } |
| |
| #define STRINGLIB_EMPTY unicode_empty |
| |
| #include "stringlib/fastsearch.h" |
| |
| #include "stringlib/count.h" |
| #include "stringlib/find.h" |
| #include "stringlib/partition.h" |
| |
| /* helper macro to fixup start/end slice values */ |
| #define FIX_START_END(obj) \ |
| if (start < 0) \ |
| start += (obj)->length; \ |
| if (start < 0) \ |
| start = 0; \ |
| if (end > (obj)->length) \ |
| end = (obj)->length; \ |
| if (end < 0) \ |
| end += (obj)->length; \ |
| if (end < 0) \ |
| end = 0; |
| |
| Py_ssize_t PyUnicode_Count(PyObject *str, |
| PyObject *substr, |
| Py_ssize_t start, |
| Py_ssize_t end) |
| { |
| Py_ssize_t result; |
| PyUnicodeObject* str_obj; |
| PyUnicodeObject* sub_obj; |
| |
| str_obj = (PyUnicodeObject*) PyUnicode_FromObject(str); |
| if (!str_obj) |
| return -1; |
| sub_obj = (PyUnicodeObject*) PyUnicode_FromObject(substr); |
| if (!sub_obj) { |
| Py_DECREF(str_obj); |
| return -1; |
| } |
| |
| FIX_START_END(str_obj); |
| |
| result = stringlib_count( |
| str_obj->str + start, end - start, sub_obj->str, sub_obj->length |
| ); |
| |
| Py_DECREF(sub_obj); |
| Py_DECREF(str_obj); |
| |
| return result; |
| } |
| |
| Py_ssize_t PyUnicode_Find(PyObject *str, |
| PyObject *sub, |
| Py_ssize_t start, |
| Py_ssize_t end, |
| int direction) |
| { |
| Py_ssize_t result; |
| |
| str = PyUnicode_FromObject(str); |
| if (!str) |
| return -2; |
| sub = PyUnicode_FromObject(sub); |
| if (!sub) { |
| Py_DECREF(str); |
| return -2; |
| } |
| |
| if (direction > 0) |
| result = stringlib_find_slice( |
| PyUnicode_AS_UNICODE(str), PyUnicode_GET_SIZE(str), |
| PyUnicode_AS_UNICODE(sub), PyUnicode_GET_SIZE(sub), |
| start, end |
| ); |
| else |
| result = stringlib_rfind_slice( |
| PyUnicode_AS_UNICODE(str), PyUnicode_GET_SIZE(str), |
| PyUnicode_AS_UNICODE(sub), PyUnicode_GET_SIZE(sub), |
| start, end |
| ); |
| |
| Py_DECREF(str); |
| Py_DECREF(sub); |
| |
| return result; |
| } |
| |
| static |
| int tailmatch(PyUnicodeObject *self, |
| PyUnicodeObject *substring, |
| Py_ssize_t start, |
| Py_ssize_t end, |
| int direction) |
| { |
| if (substring->length == 0) |
| return 1; |
| |
| FIX_START_END(self); |
| |
| end -= substring->length; |
| if (end < start) |
| return 0; |
| |
| if (direction > 0) { |
| if (Py_UNICODE_MATCH(self, end, substring)) |
| return 1; |
| } else { |
| if (Py_UNICODE_MATCH(self, start, substring)) |
| return 1; |
| } |
| |
| return 0; |
| } |
| |
| Py_ssize_t PyUnicode_Tailmatch(PyObject *str, |
| PyObject *substr, |
| Py_ssize_t start, |
| Py_ssize_t end, |
| int direction) |
| { |
| Py_ssize_t result; |
| |
| str = PyUnicode_FromObject(str); |
| if (str == NULL) |
| return -1; |
| substr = PyUnicode_FromObject(substr); |
| if (substr == NULL) { |
| Py_DECREF(str); |
| return -1; |
| } |
| |
| result = tailmatch((PyUnicodeObject *)str, |
| (PyUnicodeObject *)substr, |
| start, end, direction); |
| Py_DECREF(str); |
| Py_DECREF(substr); |
| return result; |
| } |
| |
| /* Apply fixfct filter to the Unicode object self and return a |
| reference to the modified object */ |
| |
| static |
| PyObject *fixup(PyUnicodeObject *self, |
| int (*fixfct)(PyUnicodeObject *s)) |
| { |
| |
| PyUnicodeObject *u; |
| |
| u = (PyUnicodeObject*) PyUnicode_FromUnicode(NULL, self->length); |
| if (u == NULL) |
| return NULL; |
| |
| Py_UNICODE_COPY(u->str, self->str, self->length); |
| |
| if (!fixfct(u) && PyUnicode_CheckExact(self)) { |
| /* fixfct should return TRUE if it modified the buffer. If |
| FALSE, return a reference to the original buffer instead |
| (to save space, not time) */ |
| Py_INCREF(self); |
| Py_DECREF(u); |
| return (PyObject*) self; |
| } |
| return (PyObject*) u; |
| } |
| |
| static |
| int fixupper(PyUnicodeObject *self) |
| { |
| Py_ssize_t len = self->length; |
| Py_UNICODE *s = self->str; |
| int status = 0; |
| |
| while (len-- > 0) { |
| register Py_UNICODE ch; |
| |
| ch = Py_UNICODE_TOUPPER(*s); |
| if (ch != *s) { |
| status = 1; |
| *s = ch; |
| } |
| s++; |
| } |
| |
| return status; |
| } |
| |
| static |
| int fixlower(PyUnicodeObject *self) |
| { |
| Py_ssize_t len = self->length; |
| Py_UNICODE *s = self->str; |
| int status = 0; |
| |
| while (len-- > 0) { |
| register Py_UNICODE ch; |
| |
| ch = Py_UNICODE_TOLOWER(*s); |
| if (ch != *s) { |
| status = 1; |
| *s = ch; |
| } |
| s++; |
| } |
| |
| return status; |
| } |
| |
| static |
| int fixswapcase(PyUnicodeObject *self) |
| { |
| Py_ssize_t len = self->length; |
| Py_UNICODE *s = self->str; |
| int status = 0; |
| |
| while (len-- > 0) { |
| if (Py_UNICODE_ISUPPER(*s)) { |
| *s = Py_UNICODE_TOLOWER(*s); |
| status = 1; |
| } else if (Py_UNICODE_ISLOWER(*s)) { |
| *s = Py_UNICODE_TOUPPER(*s); |
| status = 1; |
| } |
| s++; |
| } |
| |
| return status; |
| } |
| |
| static |
| int fixcapitalize(PyUnicodeObject *self) |
| { |
| Py_ssize_t len = self->length; |
| Py_UNICODE *s = self->str; |
| int status = 0; |
| |
| if (len == 0) |
| return 0; |
| if (Py_UNICODE_ISLOWER(*s)) { |
| *s = Py_UNICODE_TOUPPER(*s); |
| status = 1; |
| } |
| s++; |
| while (--len > 0) { |
| if (Py_UNICODE_ISUPPER(*s)) { |
| *s = Py_UNICODE_TOLOWER(*s); |
| status = 1; |
| } |
| s++; |
| } |
| return status; |
| } |
| |
| static |
| int fixtitle(PyUnicodeObject *self) |
| { |
| register Py_UNICODE *p = PyUnicode_AS_UNICODE(self); |
| register Py_UNICODE *e; |
| int previous_is_cased; |
| |
| /* Shortcut for single character strings */ |
| if (PyUnicode_GET_SIZE(self) == 1) { |
| Py_UNICODE ch = Py_UNICODE_TOTITLE(*p); |
| if (*p != ch) { |
| *p = ch; |
| return 1; |
| } |
| else |
| return 0; |
| } |
| |
| e = p + PyUnicode_GET_SIZE(self); |
| previous_is_cased = 0; |
| for (; p < e; p++) { |
| register const Py_UNICODE ch = *p; |
| |
| if (previous_is_cased) |
| *p = Py_UNICODE_TOLOWER(ch); |
| else |
| *p = Py_UNICODE_TOTITLE(ch); |
| |
| if (Py_UNICODE_ISLOWER(ch) || |
| Py_UNICODE_ISUPPER(ch) || |
| Py_UNICODE_ISTITLE(ch)) |
| previous_is_cased = 1; |
| else |
| previous_is_cased = 0; |
| } |
| return 1; |
| } |
| |
| PyObject * |
| PyUnicode_Join(PyObject *separator, PyObject *seq) |
| { |
| PyObject *internal_separator = NULL; |
| const Py_UNICODE blank = ' '; |
| const Py_UNICODE *sep = ␣ |
| Py_ssize_t seplen = 1; |
| PyUnicodeObject *res = NULL; /* the result */ |
| Py_ssize_t res_alloc = 100; /* # allocated bytes for string in res */ |
| Py_ssize_t res_used; /* # used bytes */ |
| Py_UNICODE *res_p; /* pointer to free byte in res's string area */ |
| PyObject *fseq; /* PySequence_Fast(seq) */ |
| Py_ssize_t seqlen; /* len(fseq) -- number of items in sequence */ |
| PyObject *item; |
| Py_ssize_t i; |
| |
| fseq = PySequence_Fast(seq, ""); |
| if (fseq == NULL) { |
| return NULL; |
| } |
| |
| /* Grrrr. A codec may be invoked to convert str objects to |
| * Unicode, and so it's possible to call back into Python code |
| * during PyUnicode_FromObject(), and so it's possible for a sick |
| * codec to change the size of fseq (if seq is a list). Therefore |
| * we have to keep refetching the size -- can't assume seqlen |
| * is invariant. |
| */ |
| seqlen = PySequence_Fast_GET_SIZE(fseq); |
| /* If empty sequence, return u"". */ |
| if (seqlen == 0) { |
| res = _PyUnicode_New(0); /* empty sequence; return u"" */ |
| goto Done; |
| } |
| /* If singleton sequence with an exact Unicode, return that. */ |
| if (seqlen == 1) { |
| item = PySequence_Fast_GET_ITEM(fseq, 0); |
| if (PyUnicode_CheckExact(item)) { |
| Py_INCREF(item); |
| res = (PyUnicodeObject *)item; |
| goto Done; |
| } |
| } |
| |
| /* At least two items to join, or one that isn't exact Unicode. */ |
| if (seqlen > 1) { |
| /* Set up sep and seplen -- they're needed. */ |
| if (separator == NULL) { |
| sep = ␣ |
| seplen = 1; |
| } |
| else { |
| internal_separator = PyUnicode_FromObject(separator); |
| if (internal_separator == NULL) |
| goto onError; |
| sep = PyUnicode_AS_UNICODE(internal_separator); |
| seplen = PyUnicode_GET_SIZE(internal_separator); |
| /* In case PyUnicode_FromObject() mutated seq. */ |
| seqlen = PySequence_Fast_GET_SIZE(fseq); |
| } |
| } |
| |
| /* Get space. */ |
| res = _PyUnicode_New(res_alloc); |
| if (res == NULL) |
| goto onError; |
| res_p = PyUnicode_AS_UNICODE(res); |
| res_used = 0; |
| |
| for (i = 0; i < seqlen; ++i) { |
| Py_ssize_t itemlen; |
| Py_ssize_t new_res_used; |
| |
| item = PySequence_Fast_GET_ITEM(fseq, i); |
| /* Convert item to Unicode. */ |
| if (! PyUnicode_Check(item) && ! PyString_Check(item)) { |
| PyErr_Format(PyExc_TypeError, |
| "sequence item %zd: expected string or Unicode," |
| " %.80s found", |
| i, item->ob_type->tp_name); |
| goto onError; |
| } |
| item = PyUnicode_FromObject(item); |
| if (item == NULL) |
| goto onError; |
| /* We own a reference to item from here on. */ |
| |
| /* In case PyUnicode_FromObject() mutated seq. */ |
| seqlen = PySequence_Fast_GET_SIZE(fseq); |
| |
| /* Make sure we have enough space for the separator and the item. */ |
| itemlen = PyUnicode_GET_SIZE(item); |
| new_res_used = res_used + itemlen; |
| if (new_res_used <= 0) |
| goto Overflow; |
| if (i < seqlen - 1) { |
| new_res_used += seplen; |
| if (new_res_used <= 0) |
| goto Overflow; |
| } |
| if (new_res_used > res_alloc) { |
| /* double allocated size until it's big enough */ |
| do { |
| res_alloc += res_alloc; |
| if (res_alloc <= 0) |
| goto Overflow; |
| } while (new_res_used > res_alloc); |
| if (_PyUnicode_Resize(&res, res_alloc) < 0) { |
| Py_DECREF(item); |
| goto onError; |
| } |
| res_p = PyUnicode_AS_UNICODE(res) + res_used; |
| } |
| |
| /* Copy item, and maybe the separator. */ |
| Py_UNICODE_COPY(res_p, PyUnicode_AS_UNICODE(item), itemlen); |
| res_p += itemlen; |
| if (i < seqlen - 1) { |
| Py_UNICODE_COPY(res_p, sep, seplen); |
| res_p += seplen; |
| } |
| Py_DECREF(item); |
| res_used = new_res_used; |
| } |
| |
| /* Shrink res to match the used area; this probably can't fail, |
| * but it's cheap to check. |
| */ |
| if (_PyUnicode_Resize(&res, res_used) < 0) |
| goto onError; |
| |
| Done: |
| Py_XDECREF(internal_separator); |
| Py_DECREF(fseq); |
| return (PyObject *)res; |
| |
| Overflow: |
| PyErr_SetString(PyExc_OverflowError, |
| "join() is too long for a Python string"); |
| Py_DECREF(item); |
| /* fall through */ |
| |
| onError: |
| Py_XDECREF(internal_separator); |
| Py_DECREF(fseq); |
| Py_XDECREF(res); |
| return NULL; |
| } |
| |
| static |
| PyUnicodeObject *pad(PyUnicodeObject *self, |
| Py_ssize_t left, |
| Py_ssize_t right, |
| Py_UNICODE fill) |
| { |
| PyUnicodeObject *u; |
| |
| if (left < 0) |
| left = 0; |
| if (right < 0) |
| right = 0; |
| |
| if (left == 0 && right == 0 && PyUnicode_CheckExact(self)) { |
| Py_INCREF(self); |
| return self; |
| } |
| |
| u = _PyUnicode_New(left + self->length + right); |
| if (u) { |
| if (left) |
| Py_UNICODE_FILL(u->str, fill, left); |
| Py_UNICODE_COPY(u->str + left, self->str, self->length); |
| if (right) |
| Py_UNICODE_FILL(u->str + left + self->length, fill, right); |
| } |
| |
| return u; |
| } |
| |
| #define SPLIT_APPEND(data, left, right) \ |
| str = PyUnicode_FromUnicode((data) + (left), (right) - (left)); \ |
| if (!str) \ |
| goto onError; \ |
| if (PyList_Append(list, str)) { \ |
| Py_DECREF(str); \ |
| goto onError; \ |
| } \ |
| else \ |
| Py_DECREF(str); |
| |
| static |
| PyObject *split_whitespace(PyUnicodeObject *self, |
| PyObject *list, |
| Py_ssize_t maxcount) |
| { |
| register Py_ssize_t i; |
| register Py_ssize_t j; |
| Py_ssize_t len = self->length; |
| PyObject *str; |
| |
| for (i = j = 0; i < len; ) { |
| /* find a token */ |
| while (i < len && Py_UNICODE_ISSPACE(self->str[i])) |
| i++; |
| j = i; |
| while (i < len && !Py_UNICODE_ISSPACE(self->str[i])) |
| i++; |
| if (j < i) { |
| if (maxcount-- <= 0) |
| break; |
| SPLIT_APPEND(self->str, j, i); |
| while (i < len && Py_UNICODE_ISSPACE(self->str[i])) |
| i++; |
| j = i; |
| } |
| } |
| if (j < len) { |
| SPLIT_APPEND(self->str, j, len); |
| } |
| return list; |
| |
| onError: |
| Py_DECREF(list); |
| return NULL; |
| } |
| |
| PyObject *PyUnicode_Splitlines(PyObject *string, |
| int keepends) |
| { |
| register Py_ssize_t i; |
| register Py_ssize_t j; |
| Py_ssize_t len; |
| PyObject *list; |
| PyObject *str; |
| Py_UNICODE *data; |
| |
| string = PyUnicode_FromObject(string); |
| if (string == NULL) |
| return NULL; |
| data = PyUnicode_AS_UNICODE(string); |
| len = PyUnicode_GET_SIZE(string); |
| |
| list = PyList_New(0); |
| if (!list) |
| goto onError; |
| |
| for (i = j = 0; i < len; ) { |
| Py_ssize_t eol; |
| |
| /* Find a line and append it */ |
| while (i < len && !BLOOM_LINEBREAK(data[i])) |
| i++; |
| |
| /* Skip the line break reading CRLF as one line break */ |
| eol = i; |
| if (i < len) { |
| if (data[i] == '\r' && i + 1 < len && |
| data[i+1] == '\n') |
| i += 2; |
| else |
| i++; |
| if (keepends) |
| eol = i; |
| } |
| SPLIT_APPEND(data, j, eol); |
| j = i; |
| } |
| if (j < len) { |
| SPLIT_APPEND(data, j, len); |
| } |
| |
| Py_DECREF(string); |
| return list; |
| |
| onError: |
| Py_XDECREF(list); |
| Py_DECREF(string); |
| return NULL; |
| } |
| |
| static |
| PyObject *split_char(PyUnicodeObject *self, |
| PyObject *list, |
| Py_UNICODE ch, |
| Py_ssize_t maxcount) |
| { |
| register Py_ssize_t i; |
| register Py_ssize_t j; |
| Py_ssize_t len = self->length; |
| PyObject *str; |
| |
| for (i = j = 0; i < len; ) { |
| if (self->str[i] == ch) { |
| if (maxcount-- <= 0) |
| break; |
| SPLIT_APPEND(self->str, j, i); |
| i = j = i + 1; |
| } else |
| i++; |
| } |
| if (j <= len) { |
| SPLIT_APPEND(self->str, j, len); |
| } |
| return list; |
| |
| onError: |
| Py_DECREF(list); |
| return NULL; |
| } |
| |
| static |
| PyObject *split_substring(PyUnicodeObject *self, |
| PyObject *list, |
| PyUnicodeObject *substring, |
| Py_ssize_t maxcount) |
| { |
| register Py_ssize_t i; |
| register Py_ssize_t j; |
| Py_ssize_t len = self->length; |
| Py_ssize_t sublen = substring->length; |
| PyObject *str; |
| |
| for (i = j = 0; i <= len - sublen; ) { |
| if (Py_UNICODE_MATCH(self, i, substring)) { |
| if (maxcount-- <= 0) |
| break; |
| SPLIT_APPEND(self->str, j, i); |
| i = j = i + sublen; |
| } else |
| i++; |
| } |
| if (j <= len) { |
| SPLIT_APPEND(self->str, j, len); |
| } |
| return list; |
| |
| onError: |
| Py_DECREF(list); |
| return NULL; |
| } |
| |
| static |
| PyObject *rsplit_whitespace(PyUnicodeObject *self, |
| PyObject *list, |
| Py_ssize_t maxcount) |
| { |
| register Py_ssize_t i; |
| register Py_ssize_t j; |
| Py_ssize_t len = self->length; |
| PyObject *str; |
| |
| for (i = j = len - 1; i >= 0; ) { |
| /* find a token */ |
| while (i >= 0 && Py_UNICODE_ISSPACE(self->str[i])) |
| i--; |
| j = i; |
| while (i >= 0 && !Py_UNICODE_ISSPACE(self->str[i])) |
| i--; |
| if (j > i) { |
| if (maxcount-- <= 0) |
| break; |
| SPLIT_APPEND(self->str, i + 1, j + 1); |
| while (i >= 0 && Py_UNICODE_ISSPACE(self->str[i])) |
| i--; |
| j = i; |
| } |
| } |
| if (j >= 0) { |
| SPLIT_APPEND(self->str, 0, j + 1); |
| } |
| if (PyList_Reverse(list) < 0) |
| goto onError; |
| return list; |
| |
| onError: |
| Py_DECREF(list); |
| return NULL; |
| } |
| |
| static |
| PyObject *rsplit_char(PyUnicodeObject *self, |
| PyObject *list, |
| Py_UNICODE ch, |
| Py_ssize_t maxcount) |
| { |
| register Py_ssize_t i; |
| register Py_ssize_t j; |
| Py_ssize_t len = self->length; |
| PyObject *str; |
| |
| for (i = j = len - 1; i >= 0; ) { |
| if (self->str[i] == ch) { |
| if (maxcount-- <= 0) |
| break; |
| SPLIT_APPEND(self->str, i + 1, j + 1); |
| j = i = i - 1; |
| } else |
| i--; |
| } |
| if (j >= -1) { |
| SPLIT_APPEND(self->str, 0, j + 1); |
| } |
| if (PyList_Reverse(list) < 0) |
| goto onError; |
| return list; |
| |
| onError: |
| Py_DECREF(list); |
| return NULL; |
| } |
| |
| static |
| PyObject *rsplit_substring(PyUnicodeObject *self, |
| PyObject *list, |
| PyUnicodeObject *substring, |
| Py_ssize_t maxcount) |
| { |
| register Py_ssize_t i; |
| register Py_ssize_t j; |
| Py_ssize_t len = self->length; |
| Py_ssize_t sublen = substring->length; |
| PyObject *str; |
| |
| for (i = len - sublen, j = len; i >= 0; ) { |
| if (Py_UNICODE_MATCH(self, i, substring)) { |
| if (maxcount-- <= 0) |
| break; |
| SPLIT_APPEND(self->str, i + sublen, j); |
| j = i; |
| i -= sublen; |
| } else |
| i--; |
| } |
| if (j >= 0) { |
| SPLIT_APPEND(self->str, 0, j); |
| } |
| if (PyList_Reverse(list) < 0) |
| goto onError; |
| return list; |
| |
| onError: |
| Py_DECREF(list); |
| return NULL; |
| } |
| |
| #undef SPLIT_APPEND |
| |
| static |
| PyObject *split(PyUnicodeObject *self, |
| PyUnicodeObject *substring, |
| Py_ssize_t maxcount) |
| { |
| PyObject *list; |
| |
| if (maxcount < 0) |
| maxcount = PY_SSIZE_T_MAX; |
| |
| list = PyList_New(0); |
| if (!list) |
| return NULL; |
| |
| if (substring == NULL) |
| return split_whitespace(self,list,maxcount); |
| |
| else if (substring->length == 1) |
| return split_char(self,list,substring->str[0],maxcount); |
| |
| else if (substring->length == 0) { |
| Py_DECREF(list); |
| PyErr_SetString(PyExc_ValueError, "empty separator"); |
| return NULL; |
| } |
| else |
| return split_substring(self,list,substring,maxcount); |
| } |
| |
| static |
| PyObject *rsplit(PyUnicodeObject *self, |
| PyUnicodeObject *substring, |
| Py_ssize_t maxcount) |
| { |
| PyObject *list; |
| |
| if (maxcount < 0) |
| maxcount = PY_SSIZE_T_MAX; |
| |
| list = PyList_New(0); |
| if (!list) |
| return NULL; |
| |
| if (substring == NULL) |
| return rsplit_whitespace(self,list,maxcount); |
| |
| else if (substring->length == 1) |
| return rsplit_char(self,list,substring->str[0],maxcount); |
| |
| else if (substring->length == 0) { |
| Py_DECREF(list); |
| PyErr_SetString(PyExc_ValueError, "empty separator"); |
| return NULL; |
| } |
| else |
| return rsplit_substring(self,list,substring,maxcount); |
| } |
| |
| static |
| PyObject *replace(PyUnicodeObject *self, |
| PyUnicodeObject *str1, |
| PyUnicodeObject *str2, |
| Py_ssize_t maxcount) |
| { |
| PyUnicodeObject *u; |
| |
| if (maxcount < 0) |
| maxcount = PY_SSIZE_T_MAX; |
| |
| if (str1->length == str2->length) { |
| /* same length */ |
| Py_ssize_t i; |
| if (str1->length == 1) { |
| /* replace characters */ |
| Py_UNICODE u1, u2; |
| if (!findchar(self->str, self->length, str1->str[0])) |
| goto nothing; |
| u = (PyUnicodeObject*) PyUnicode_FromUnicode(NULL, self->length); |
| if (!u) |
| return NULL; |
| Py_UNICODE_COPY(u->str, self->str, self->length); |
| u1 = str1->str[0]; |
| u2 = str2->str[0]; |
| for (i = 0; i < u->length; i++) |
| if (u->str[i] == u1) { |
| if (--maxcount < 0) |
| break; |
| u->str[i] = u2; |
| } |
| } else { |
| i = fastsearch( |
| self->str, self->length, str1->str, str1->length, FAST_SEARCH |
| ); |
| if (i < 0) |
| goto nothing; |
| u = (PyUnicodeObject*) PyUnicode_FromUnicode(NULL, self->length); |
| if (!u) |
| return NULL; |
| Py_UNICODE_COPY(u->str, self->str, self->length); |
| while (i <= self->length - str1->length) |
| if (Py_UNICODE_MATCH(self, i, str1)) { |
| if (--maxcount < 0) |
| break; |
| Py_UNICODE_COPY(u->str+i, str2->str, str2->length); |
| i += str1->length; |
| } else |
| i++; |
| } |
| } else { |
| |
| Py_ssize_t n, i, j, e; |
| Py_ssize_t product, new_size, delta; |
| Py_UNICODE *p; |
| |
| /* replace strings */ |
| n = stringlib_count(self->str, self->length, str1->str, str1->length); |
| if (n > maxcount) |
| n = maxcount; |
| if (n == 0) |
| goto nothing; |
| /* new_size = self->length + n * (str2->length - str1->length)); */ |
| delta = (str2->length - str1->length); |
| if (delta == 0) { |
| new_size = self->length; |
| } else { |
| product = n * (str2->length - str1->length); |
| if ((product / (str2->length - str1->length)) != n) { |
| PyErr_SetString(PyExc_OverflowError, |
| "replace string is too long"); |
| return NULL; |
| } |
| new_size = self->length + product; |
| if (new_size < 0) { |
| PyErr_SetString(PyExc_OverflowError, |
| "replace string is too long"); |
| return NULL; |
| } |
| } |
| u = _PyUnicode_New(new_size); |
| if (!u) |
| return NULL; |
| i = 0; |
| p = u->str; |
| e = self->length - str1->length; |
| if (str1->length > 0) { |
| while (n-- > 0) { |
| /* look for next match */ |
| j = i; |
| while (j <= e) { |
| if (Py_UNICODE_MATCH(self, j, str1)) |
| break; |
| j++; |
| } |
| if (j > i) { |
| if (j > e) |
| break; |
| /* copy unchanged part [i:j] */ |
| Py_UNICODE_COPY(p, self->str+i, j-i); |
| p += j - i; |
| } |
| /* copy substitution string */ |
| if (str2->length > 0) { |
| Py_UNICODE_COPY(p, str2->str, str2->length); |
| p += str2->length; |
| } |
| i = j + str1->length; |
| } |
| if (i < self->length) |
| /* copy tail [i:] */ |
| Py_UNICODE_COPY(p, self->str+i, self->length-i); |
| } else { |
| /* interleave */ |
| while (n > 0) { |
| Py_UNICODE_COPY(p, str2->str, str2->length); |
| p += str2->length; |
| if (--n <= 0) |
| break; |
| *p++ = self->str[i++]; |
| } |
| Py_UNICODE_COPY(p, self->str+i, self->length-i); |
| } |
| } |
| return (PyObject *) u; |
| |
| nothing: |
| /* nothing to replace; return original string (when possible) */ |
| if (PyUnicode_CheckExact(self)) { |
| Py_INCREF(self); |
| return (PyObject *) self; |
| } |
| return PyUnicode_FromUnicode(self->str, self->length); |
| } |
| |
| /* --- Unicode Object Methods --------------------------------------------- */ |
| |
| PyDoc_STRVAR(title__doc__, |
| "S.title() -> unicode\n\ |
| \n\ |
| Return a titlecased version of S, i.e. words start with title case\n\ |
| characters, all remaining cased characters have lower case."); |
| |
| static PyObject* |
| unicode_title(PyUnicodeObject *self) |
| { |
| return fixup(self, fixtitle); |
| } |
| |
| PyDoc_STRVAR(capitalize__doc__, |
| "S.capitalize() -> unicode\n\ |
| \n\ |
| Return a capitalized version of S, i.e. make the first character\n\ |
| have upper case."); |
| |
| static PyObject* |
| unicode_capitalize(PyUnicodeObject *self) |
| { |
| return fixup(self, fixcapitalize); |
| } |
| |
| #if 0 |
| PyDoc_STRVAR(capwords__doc__, |
| "S.capwords() -> unicode\n\ |
| \n\ |
| Apply .capitalize() to all words in S and return the result with\n\ |
| normalized whitespace (all whitespace strings are replaced by ' ')."); |
| |
| static PyObject* |
| unicode_capwords(PyUnicodeObject *self) |
| { |
| PyObject *list; |
| PyObject *item; |
| Py_ssize_t i; |
| |
| /* Split into words */ |
| list = split(self, NULL, -1); |
| if (!list) |
| return NULL; |
| |
| /* Capitalize each word */ |
| for (i = 0; i < PyList_GET_SIZE(list); i++) { |
| item = fixup((PyUnicodeObject *)PyList_GET_ITEM(list, i), |
| fixcapitalize); |
| if (item == NULL) |
| goto onError; |
| Py_DECREF(PyList_GET_ITEM(list, i)); |
| PyList_SET_ITEM(list, i, item); |
| } |
| |
| /* Join the words to form a new string */ |
| item = PyUnicode_Join(NULL, list); |
| |
| onError: |
| Py_DECREF(list); |
| return (PyObject *)item; |
| } |
| #endif |
| |
| /* Argument converter. Coerces to a single unicode character */ |
| |
| static int |
| convert_uc(PyObject *obj, void *addr) |
| { |
| Py_UNICODE *fillcharloc = (Py_UNICODE *)addr; |
| PyObject *uniobj; |
| Py_UNICODE *unistr; |
| |
| uniobj = PyUnicode_FromObject(obj); |
| if (uniobj == NULL) { |
| PyErr_SetString(PyExc_TypeError, |
| "The fill character cannot be converted to Unicode"); |
| return 0; |
| } |
| if (PyUnicode_GET_SIZE(uniobj) != 1) { |
| PyErr_SetString(PyExc_TypeError, |
| "The fill character must be exactly one character long"); |
| Py_DECREF(uniobj); |
| return 0; |
| } |
| unistr = PyUnicode_AS_UNICODE(uniobj); |
| *fillcharloc = unistr[0]; |
| Py_DECREF(uniobj); |
| return 1; |
| } |
| |
| PyDoc_STRVAR(center__doc__, |
| "S.center(width[, fillchar]) -> unicode\n\ |
| \n\ |
| Return S centered in a Unicode string of length width. Padding is\n\ |
| done using the specified fill character (default is a space)"); |
| |
| static PyObject * |
| unicode_center(PyUnicodeObject *self, PyObject *args) |
| { |
| Py_ssize_t marg, left; |
| Py_ssize_t width; |
| Py_UNICODE fillchar = ' '; |
| |
| if (!PyArg_ParseTuple(args, "n|O&:center", &width, convert_uc, &fillchar)) |
| return NULL; |
| |
| if (self->length >= width && PyUnicode_CheckExact(self)) { |
| Py_INCREF(self); |
| return (PyObject*) self; |
| } |
| |
| marg = width - self->length; |
| left = marg / 2 + (marg & width & 1); |
| |
| return (PyObject*) pad(self, left, marg - left, fillchar); |
| } |
| |
| #if 0 |
| |
| /* This code should go into some future Unicode collation support |
| module. The basic comparison should compare ordinals on a naive |
| basis (this is what Java does and thus JPython too). */ |
| |
| /* speedy UTF-16 code point order comparison */ |
| /* gleaned from: */ |
| /* http://www-4.ibm.com/software/developer/library/utf16.html?dwzone=unicode */ |
| |
| static short utf16Fixup[32] = |
| { |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0x2000, -0x800, -0x800, -0x800, -0x800 |
| }; |
| |
| static int |
| unicode_compare(PyUnicodeObject *str1, PyUnicodeObject *str2) |
| { |
| Py_ssize_t len1, len2; |
| |
| Py_UNICODE *s1 = str1->str; |
| Py_UNICODE *s2 = str2->str; |
| |
| len1 = str1->length; |
| len2 = str2->length; |
| |
| while (len1 > 0 && len2 > 0) { |
| Py_UNICODE c1, c2; |
| |
| c1 = *s1++; |
| c2 = *s2++; |
| |
| if (c1 > (1<<11) * 26) |
| c1 += utf16Fixup[c1>>11]; |
| if (c2 > (1<<11) * 26) |
| c2 += utf16Fixup[c2>>11]; |
| /* now c1 and c2 are in UTF-32-compatible order */ |
| |
| if (c1 != c2) |
| return (c1 < c2) ? -1 : 1; |
| |
| len1--; len2--; |
| } |
| |
| return (len1 < len2) ? -1 : (len1 != len2); |
| } |
| |
| #else |
| |
| static int |
| unicode_compare(PyUnicodeObject *str1, PyUnicodeObject *str2) |
| { |
| register Py_ssize_t len1, len2; |
| |
| Py_UNICODE *s1 = str1->str; |
| Py_UNICODE *s2 = str2->str; |
| |
| len1 = str1->length; |
| len2 = str2->length; |
| |
| while (len1 > 0 && len2 > 0) { |
| Py_UNICODE c1, c2; |
| |
| c1 = *s1++; |
| c2 = *s2++; |
| |
| if (c1 != c2) |
| return (c1 < c2) ? -1 : 1; |
| |
| len1--; len2--; |
| } |
| |
| return (len1 < len2) ? -1 : (len1 != len2); |
| } |
| |
| #endif |
| |
| int PyUnicode_Compare(PyObject *left, |
| PyObject *right) |
| { |
| PyUnicodeObject *u = NULL, *v = NULL; |
| int result; |
| |
| /* Coerce the two arguments */ |
| u = (PyUnicodeObject *)PyUnicode_FromObject(left); |
| if (u == NULL) |
| goto onError; |
| v = (PyUnicodeObject *)PyUnicode_FromObject(right); |
| if (v == NULL) |
| goto onError; |
| |
| /* Shortcut for empty or interned objects */ |
| if (v == u) { |
| Py_DECREF(u); |
| Py_DECREF(v); |
| return 0; |
| } |
| |
| result = unicode_compare(u, v); |
| |
| Py_DECREF(u); |
| Py_DECREF(v); |
| return result; |
| |
| onError: |
| Py_XDECREF(u); |
| Py_XDECREF(v); |
| return -1; |
| } |
| |
| int PyUnicode_Contains(PyObject *container, |
| PyObject *element) |
| { |
| PyObject *str, *sub; |
| int result; |
| |
| /* Coerce the two arguments */ |
| sub = PyUnicode_FromObject(element); |
| if (!sub) { |
| PyErr_SetString(PyExc_TypeError, |
| "'in <string>' requires string as left operand"); |
| return -1; |
| } |
| |
| str = PyUnicode_FromObject(container); |
| if (!str) { |
| Py_DECREF(sub); |
| return -1; |
| } |
| |
| result = stringlib_contains_obj(str, sub); |
| |
| Py_DECREF(str); |
| Py_DECREF(sub); |
| |
| return result; |
| } |
| |
| /* Concat to string or Unicode object giving a new Unicode object. */ |
| |
| PyObject *PyUnicode_Concat(PyObject *left, |
| PyObject *right) |
| { |
| PyUnicodeObject *u = NULL, *v = NULL, *w; |
| |
| /* Coerce the two arguments */ |
| u = (PyUnicodeObject *)PyUnicode_FromObject(left); |
| if (u == NULL) |
| goto onError; |
| v = (PyUnicodeObject *)PyUnicode_FromObject(right); |
| if (v == NULL) |
| goto onError; |
| |
| /* Shortcuts */ |
| if (v == unicode_empty) { |
| Py_DECREF(v); |
| return (PyObject *)u; |
| } |
| if (u == unicode_empty) { |
| Py_DECREF(u); |
| return (PyObject *)v; |
| } |
| |
| /* Concat the two Unicode strings */ |
| w = _PyUnicode_New(u->length + v->length); |
| if (w == NULL) |
| goto onError; |
| Py_UNICODE_COPY(w->str, u->str, u->length); |
| Py_UNICODE_COPY(w->str + u->length, v->str, v->length); |
| |
| Py_DECREF(u); |
| Py_DECREF(v); |
| return (PyObject *)w; |
| |
| onError: |
| Py_XDECREF(u); |
| Py_XDECREF(v); |
| return NULL; |
| } |
| |
| PyDoc_STRVAR(count__doc__, |
| "S.count(sub[, start[, end]]) -> int\n\ |
| \n\ |
| Return the number of non-overlapping occurrences of substring sub in\n\ |
| Unicode string S[start:end]. Optional arguments start and end are\n\ |
| interpreted as in slice notation."); |
| |
| static PyObject * |
| unicode_count(PyUnicodeObject *self, PyObject *args) |
| { |
| PyUnicodeObject *substring; |
| Py_ssize_t start = 0; |
| Py_ssize_t end = PY_SSIZE_T_MAX; |
| PyObject *result; |
| |
| if (!PyArg_ParseTuple(args, "O|O&O&:count", &substring, |
| _PyEval_SliceIndex, &start, _PyEval_SliceIndex, &end)) |
| return NULL; |
| |
| substring = (PyUnicodeObject *)PyUnicode_FromObject( |
| (PyObject *)substring); |
| if (substring == NULL) |
| return NULL; |
| |
| FIX_START_END(self); |
| |
| result = PyInt_FromSsize_t( |
| stringlib_count(self->str + start, end - start, |
| substring->str, substring->length) |
| ); |
| |
| Py_DECREF(substring); |
| |
| return result; |
| } |
| |
| PyDoc_STRVAR(encode__doc__, |
| "S.encode([encoding[,errors]]) -> string or unicode\n\ |
| \n\ |
| Encodes S using the codec registered for encoding. encoding defaults\n\ |
| to the default encoding. errors may be given to set a different error\n\ |
| handling scheme. Default is 'strict' meaning that encoding errors raise\n\ |
| a UnicodeEncodeError. Other possible values are 'ignore', 'replace' and\n\ |
| 'xmlcharrefreplace' as well as any other name registered with\n\ |
| codecs.register_error that can handle UnicodeEncodeErrors."); |
| |
| static PyObject * |
| unicode_encode(PyUnicodeObject *self, PyObject *args) |
| { |
| char *encoding = NULL; |
| char *errors = NULL; |
| PyObject *v; |
| |
| if (!PyArg_ParseTuple(args, "|ss:encode", &encoding, &errors)) |
| return NULL; |
| v = PyUnicode_AsEncodedObject((PyObject *)self, encoding, errors); |
| if (v == NULL) |
| goto onError; |
| if (!PyString_Check(v) && !PyUnicode_Check(v)) { |
| PyErr_Format(PyExc_TypeError, |
| "encoder did not return a string/unicode object " |
| "(type=%.400s)", |
| v->ob_type->tp_name); |
| Py_DECREF(v); |
| return NULL; |
| } |
| return v; |
| |
| onError: |
| return NULL; |
| } |
| |
| PyDoc_STRVAR(decode__doc__, |
| "S.decode([encoding[,errors]]) -> string or unicode\n\ |
| \n\ |
| Decodes S using the codec registered for encoding. encoding defaults\n\ |
| to the default encoding. errors may be given to set a different error\n\ |
| handling scheme. Default is 'strict' meaning that encoding errors raise\n\ |
| a UnicodeDecodeError. Other possible values are 'ignore' and 'replace'\n\ |
| as well as any other name registerd with codecs.register_error that is\n\ |
| able to handle UnicodeDecodeErrors."); |
| |
| static PyObject * |
| unicode_decode(PyUnicodeObject *self, PyObject *args) |
| { |
| char *encoding = NULL; |
| char *errors = NULL; |
| PyObject *v; |
| |
| if (!PyArg_ParseTuple(args, "|ss:decode", &encoding, &errors)) |
| return NULL; |
| v = PyUnicode_AsDecodedObject((PyObject *)self, encoding, errors); |
| if (v == NULL) |
| goto onError; |
| if (!PyString_Check(v) && !PyUnicode_Check(v)) { |
| PyErr_Format(PyExc_TypeError, |
| "decoder did not return a string/unicode object " |
| "(type=%.400s)", |
| v->ob_type->tp_name); |
| Py_DECREF(v); |
| return NULL; |
| } |
| return v; |
| |
| onError: |
| return NULL; |
| } |
| |
| PyDoc_STRVAR(expandtabs__doc__, |
| "S.expandtabs([tabsize]) -> unicode\n\ |
| \n\ |
| Return a copy of S where all tab characters are expanded using spaces.\n\ |
| If tabsize is not given, a tab size of 8 characters is assumed."); |
| |
| static PyObject* |
| unicode_expandtabs(PyUnicodeObject *self, PyObject *args) |
| { |
| Py_UNICODE *e; |
| Py_UNICODE *p; |
| Py_UNICODE *q; |
| Py_ssize_t i, j; |
| PyUnicodeObject *u; |
| int tabsize = 8; |
| |
| if (!PyArg_ParseTuple(args, "|i:expandtabs", &tabsize)) |
| return NULL; |
| |
| /* First pass: determine size of output string */ |
| i = j = 0; |
| e = self->str + self->length; |
| for (p = self->str; p < e; p++) |
| if (*p == '\t') { |
| if (tabsize > 0) |
| j += tabsize - (j % tabsize); |
| } |
| else { |
| j++; |
| if (*p == '\n' || *p == '\r') { |
| i += j; |
| j = 0; |
| } |
| } |
| |
| /* Second pass: create output string and fill it */ |
| u = _PyUnicode_New(i + j); |
| if (!u) |
| return NULL; |
| |
| j = 0; |
| q = u->str; |
| |
| for (p = self->str; p < e; p++) |
| if (*p == '\t') { |
| if (tabsize > 0) { |
| i = tabsize - (j % tabsize); |
| j += i; |
| while (i--) |
| *q++ = ' '; |
| } |
| } |
| else { |
| j++; |
| *q++ = *p; |
| if (*p == '\n' || *p == '\r') |
| j = 0; |
| } |
| |
| return (PyObject*) u; |
| } |
| |
| PyDoc_STRVAR(find__doc__, |
| "S.find(sub [,start [,end]]) -> int\n\ |
| \n\ |
| Return the lowest index in S where substring sub is found,\n\ |
| such that sub is contained within s[start,end]. Optional\n\ |
| arguments start and end are interpreted as in slice notation.\n\ |
| \n\ |
| Return -1 on failure."); |
| |
| static PyObject * |
| unicode_find(PyUnicodeObject *self, PyObject *args) |
| { |
| PyObject *substring; |
| Py_ssize_t start = 0; |
| Py_ssize_t end = PY_SSIZE_T_MAX; |
| Py_ssize_t result; |
| |
| if (!PyArg_ParseTuple(args, "O|O&O&:find", &substring, |
| _PyEval_SliceIndex, &start, _PyEval_SliceIndex, &end)) |
| return NULL; |
| substring = PyUnicode_FromObject(substring); |
| if (!substring) |
| return NULL; |
| |
| result = stringlib_find_slice( |
| PyUnicode_AS_UNICODE(self), PyUnicode_GET_SIZE(self), |
| PyUnicode_AS_UNICODE(substring), PyUnicode_GET_SIZE(substring), |
| start, end |
| ); |
| |
| Py_DECREF(substring); |
| |
| return PyInt_FromSsize_t(result); |
| } |
| |
| static PyObject * |
| unicode_getitem(PyUnicodeObject *self, Py_ssize_t index) |
| { |
| if (index < 0 || index >= self->length) { |
| PyErr_SetString(PyExc_IndexError, "string index out of range"); |
| return NULL; |
| } |
| |
| return (PyObject*) PyUnicode_FromUnicode(&self->str[index], 1); |
| } |
| |
| static long |
| unicode_hash(PyUnicodeObject *self) |
| { |
| /* Since Unicode objects compare equal to their ASCII string |
| counterparts, they should use the individual character values |
| as basis for their hash value. This is needed to assure that |
| strings and Unicode objects behave in the same way as |
| dictionary keys. */ |
| |
| register Py_ssize_t len; |
| register Py_UNICODE *p; |
| register long x; |
| |
| if (self->hash != -1) |
| return self->hash; |
| len = PyUnicode_GET_SIZE(self); |
| p = PyUnicode_AS_UNICODE(self); |
| x = *p << 7; |
| while (--len >= 0) |
| x = (1000003*x) ^ *p++; |
| x ^= PyUnicode_GET_SIZE(self); |
| if (x == -1) |
| x = -2; |
| self->hash = x; |
| return x; |
| } |
| |
| PyDoc_STRVAR(index__doc__, |
| "S.index(sub [,start [,end]]) -> int\n\ |
| \n\ |
| Like S.find() but raise ValueError when the substring is not found."); |
| |
| static PyObject * |
| unicode_index(PyUnicodeObject *self, PyObject *args) |
| { |
| Py_ssize_t result; |
| PyObject *substring; |
| Py_ssize_t start = 0; |
| Py_ssize_t end = PY_SSIZE_T_MAX; |
| |
| if (!PyArg_ParseTuple(args, "O|O&O&:index", &substring, |
| _PyEval_SliceIndex, &start, _PyEval_SliceIndex, &end)) |
| return NULL; |
| substring = PyUnicode_FromObject(substring); |
| if (!substring) |
| return NULL; |
| |
| result = stringlib_find_slice( |
| PyUnicode_AS_UNICODE(self), PyUnicode_GET_SIZE(self), |
| PyUnicode_AS_UNICODE(substring), PyUnicode_GET_SIZE(substring), |
| start, end |
| ); |
| |
| Py_DECREF(substring); |
| |
| if (result < 0) { |
| PyErr_SetString(PyExc_ValueError, "substring not found"); |
| return NULL; |
| } |
| |
| return PyInt_FromSsize_t(result); |
| } |
| |
| PyDoc_STRVAR(islower__doc__, |
| "S.islower() -> bool\n\ |
| \n\ |
| Return True if all cased characters in S are lowercase and there is\n\ |
| at least one cased character in S, False otherwise."); |
| |
| static PyObject* |
| unicode_islower(PyUnicodeObject *self) |
| { |
| register const Py_UNICODE *p = PyUnicode_AS_UNICODE(self); |
| register const Py_UNICODE *e; |
| int cased; |
| |
| /* Shortcut for single character strings */ |
| if (PyUnicode_GET_SIZE(self) == 1) |
| return PyBool_FromLong(Py_UNICODE_ISLOWER(*p)); |
| |
| /* Special case for empty strings */ |
| if (PyUnicode_GET_SIZE(self) == 0) |
| return PyBool_FromLong(0); |
| |
| e = p + PyUnicode_GET_SIZE(self); |
| cased = 0; |
| for (; p < e; p++) { |
| register const Py_UNICODE ch = *p; |
| |
| if (Py_UNICODE_ISUPPER(ch) || Py_UNICODE_ISTITLE(ch)) |
| return PyBool_FromLong(0); |
| else if (!cased && Py_UNICODE_ISLOWER(ch)) |
| cased = 1; |
| } |
| return PyBool_FromLong(cased); |
| } |
| |
| PyDoc_STRVAR(isupper__doc__, |
| "S.isupper() -> bool\n\ |
| \n\ |
| Return True if all cased characters in S are uppercase and there is\n\ |
| at least one cased character in S, False otherwise."); |
| |
| static PyObject* |
| unicode_isupper(PyUnicodeObject *self) |
| { |
| register const Py_UNICODE *p = PyUnicode_AS_UNICODE(self); |
| register const Py_UNICODE *e; |
| int cased; |
| |
| /* Shortcut for single character strings */ |
| if (PyUnicode_GET_SIZE(self) == 1) |
| return PyBool_FromLong(Py_UNICODE_ISUPPER(*p) != 0); |
| |
| /* Special case for empty strings */ |
| if (PyUnicode_GET_SIZE(self) == 0) |
| return PyBool_FromLong(0); |
| |
| e = p + PyUnicode_GET_SIZE(self); |
| cased = 0; |
| for (; p < e; p++) { |
| register const Py_UNICODE ch = *p; |
| |
| if (Py_UNICODE_ISLOWER(ch) || Py_UNICODE_ISTITLE(ch)) |
| return PyBool_FromLong(0); |
| else if (!cased && Py_UNICODE_ISUPPER(ch)) |
| cased = 1; |
| } |
| return PyBool_FromLong(cased); |
| } |
| |
| PyDoc_STRVAR(istitle__doc__, |
| "S.istitle() -> bool\n\ |
| \n\ |
| Return True if S is a titlecased string and there is at least one\n\ |
| character in S, i.e. upper- and titlecase characters may only\n\ |
| follow uncased characters and lowercase characters only cased ones.\n\ |
| Return False otherwise."); |
| |
| static PyObject* |
| unicode_istitle(PyUnicodeObject *self) |
| { |
| register const Py_UNICODE *p = PyUnicode_AS_UNICODE(self); |
| register const Py_UNICODE *e; |
| int cased, previous_is_cased; |
| |
| /* Shortcut for single character strings */ |
| if (PyUnicode_GET_SIZE(self) == 1) |
| return PyBool_FromLong((Py_UNICODE_ISTITLE(*p) != 0) || |
| (Py_UNICODE_ISUPPER(*p) != 0)); |
| |
| /* Special case for empty strings */ |
| if (PyUnicode_GET_SIZE(self) == 0) |
| return PyBool_FromLong(0); |
| |
| e = p + PyUnicode_GET_SIZE(self); |
| cased = 0; |
| previous_is_cased = 0; |
| for (; p < e; p++) { |
| register const Py_UNICODE ch = *p; |
| |
| if (Py_UNICODE_ISUPPER(ch) || Py_UNICODE_ISTITLE(ch)) { |
| if (previous_is_cased) |
| return PyBool_FromLong(0); |
| previous_is_cased = 1; |
| cased = 1; |
| } |
| else if (Py_UNICODE_ISLOWER(ch)) { |
| if (!previous_is_cased) |
| return PyBool_FromLong(0); |
| previous_is_cased = 1; |
| cased = 1; |
| } |
| else |
| previous_is_cased = 0; |
| } |
| return PyBool_FromLong(cased); |
| } |
| |
| PyDoc_STRVAR(isspace__doc__, |
| "S.isspace() -> bool\n\ |
| \n\ |
| Return True if all characters in S are whitespace\n\ |
| and there is at least one character in S, False otherwise."); |
| |
| static PyObject* |
| unicode_isspace(PyUnicodeObject *self) |
| { |
| register const Py_UNICODE *p = PyUnicode_AS_UNICODE(self); |
| register const Py_UNICODE *e; |
| |
| /* Shortcut for single character strings */ |
| if (PyUnicode_GET_SIZE(self) == 1 && |
| Py_UNICODE_ISSPACE(*p)) |
| return PyBool_FromLong(1); |
| |
| /* Special case for empty strings */ |
| if (PyUnicode_GET_SIZE(self) == 0) |
| return PyBool_FromLong(0); |
| |
| e = p + PyUnicode_GET_SIZE(self); |
| for (; p < e; p++) { |
| if (!Py_UNICODE_ISSPACE(*p)) |
| return PyBool_FromLong(0); |
| } |
| return PyBool_FromLong(1); |
| } |
| |
| PyDoc_STRVAR(isalpha__doc__, |
| "S.isalpha() -> bool\n\ |
| \n\ |
| Return True if all characters in S are alphabetic\n\ |
| and there is at least one character in S, False otherwise."); |
| |
| static PyObject* |
| unicode_isalpha(PyUnicodeObject *self) |
| { |
| register const Py_UNICODE *p = PyUnicode_AS_UNICODE(self); |
| register const Py_UNICODE *e; |
| |
| /* Shortcut for single character strings */ |
| if (PyUnicode_GET_SIZE(self) == 1 && |
| Py_UNICODE_ISALPHA(*p)) |
| return PyBool_FromLong(1); |
| |
| /* Special case for empty strings */ |
| if (PyUnicode_GET_SIZE(self) == 0) |
| return PyBool_FromLong(0); |
| |
| e = p + PyUnicode_GET_SIZE(self); |
| for (; p < e; p++) { |
| if (!Py_UNICODE_ISALPHA(*p)) |
| return PyBool_FromLong(0); |
| } |
| return PyBool_FromLong(1); |
| } |
| |
| PyDoc_STRVAR(isalnum__doc__, |
| "S.isalnum() -> bool\n\ |
| \n\ |
| Return True if all characters in S are alphanumeric\n\ |
| and there is at least one character in S, False otherwise."); |
| |
| static PyObject* |
| unicode_isalnum(PyUnicodeObject *self) |
| { |
| register const Py_UNICODE *p = PyUnicode_AS_UNICODE(self); |
| register const Py_UNICODE *e; |
| |
| /* Shortcut for single character strings */ |
| if (PyUnicode_GET_SIZE(self) == 1 && |
| Py_UNICODE_ISALNUM(*p)) |
| return PyBool_FromLong(1); |
| |
| /* Special case for empty strings */ |
| if (PyUnicode_GET_SIZE(self) == 0) |
| return PyBool_FromLong(0); |
| |
| e = p + PyUnicode_GET_SIZE(self); |
| for (; p < e; p++) { |
| if (!Py_UNICODE_ISALNUM(*p)) |
| return PyBool_FromLong(0); |
| } |
| return PyBool_FromLong(1); |
| } |
| |
| PyDoc_STRVAR(isdecimal__doc__, |
| "S.isdecimal() -> bool\n\ |
| \n\ |
| Return True if there are only decimal characters in S,\n\ |
| False otherwise."); |
| |
| static PyObject* |
| unicode_isdecimal(PyUnicodeObject *self) |
| { |
| register const Py_UNICODE *p = PyUnicode_AS_UNICODE(self); |
| register const Py_UNICODE *e; |
| |
| /* Shortcut for single character strings */ |
| if (PyUnicode_GET_SIZE(self) == 1 && |
| Py_UNICODE_ISDECIMAL(*p)) |
| return PyBool_FromLong(1); |
| |
| /* Special case for empty strings */ |
| if (PyUnicode_GET_SIZE(self) == 0) |
| return PyBool_FromLong(0); |
| |
| e = p + PyUnicode_GET_SIZE(self); |
| for (; p < e; p++) { |
| if (!Py_UNICODE_ISDECIMAL(*p)) |
| return PyBool_FromLong(0); |
| } |
| return PyBool_FromLong(1); |
| } |
| |
| PyDoc_STRVAR(isdigit__doc__, |
| "S.isdigit() -> bool\n\ |
| \n\ |
| Return True if all characters in S are digits\n\ |
| and there is at least one character in S, False otherwise."); |
| |
| static PyObject* |
| unicode_isdigit(PyUnicodeObject *self) |
| { |
| register const Py_UNICODE *p = PyUnicode_AS_UNICODE(self); |
| register const Py_UNICODE *e; |
| |
| /* Shortcut for single character strings */ |
| if (PyUnicode_GET_SIZE(self) == 1 && |
| Py_UNICODE_ISDIGIT(*p)) |
| return PyBool_FromLong(1); |
| |
| /* Special case for empty strings */ |
| if (PyUnicode_GET_SIZE(self) == 0) |
| return PyBool_FromLong(0); |
| |
| e = p + PyUnicode_GET_SIZE(self); |
| for (; p < e; p++) { |
| if (!Py_UNICODE_ISDIGIT(*p)) |
| return PyBool_FromLong(0); |
| } |
| return PyBool_FromLong(1); |
| } |
| |
| PyDoc_STRVAR(isnumeric__doc__, |
| "S.isnumeric() -> bool\n\ |
| \n\ |
| Return True if there are only numeric characters in S,\n\ |
| False otherwise."); |
| |
| static PyObject* |
| unicode_isnumeric(PyUnicodeObject *self) |
| { |
| register const Py_UNICODE *p = PyUnicode_AS_UNICODE(self); |
| register const Py_UNICODE *e; |
| |
| /* Shortcut for single character strings */ |
| if (PyUnicode_GET_SIZE(self) == 1 && |
| Py_UNICODE_ISNUMERIC(*p)) |
| return PyBool_FromLong(1); |
| |
| /* Special case for empty strings */ |
| if (PyUnicode_GET_SIZE(self) == 0) |
| return PyBool_FromLong(0); |
| |
| e = p + PyUnicode_GET_SIZE(self); |
| for (; p < e; p++) { |
| if (!Py_UNICODE_ISNUMERIC(*p)) |
| return PyBool_FromLong(0); |
| } |
| return PyBool_FromLong(1); |
| } |
| |
| PyDoc_STRVAR(join__doc__, |
| "S.join(sequence) -> unicode\n\ |
| \n\ |
| Return a string which is the concatenation of the strings in the\n\ |
| sequence. The separator between elements is S."); |
| |
| static PyObject* |
| unicode_join(PyObject *self, PyObject *data) |
| { |
| return PyUnicode_Join(self, data); |
| } |
| |
| static Py_ssize_t |
| unicode_length(PyUnicodeObject *self) |
| { |
| return self->length; |
| } |
| |
| PyDoc_STRVAR(ljust__doc__, |
| "S.ljust(width[, fillchar]) -> int\n\ |
| \n\ |
| Return S left justified in a Unicode string of length width. Padding is\n\ |
| done using the specified fill character (default is a space)."); |
| |
| static PyObject * |
| unicode_ljust(PyUnicodeObject *self, PyObject *args) |
| { |
| Py_ssize_t width; |
| Py_UNICODE fillchar = ' '; |
| |
| if (!PyArg_ParseTuple(args, "n|O&:ljust", &width, convert_uc, &fillchar)) |
| return NULL; |
| |
| if (self->length >= width && PyUnicode_CheckExact(self)) { |
| Py_INCREF(self); |
| return (PyObject*) self; |
| } |
| |
| return (PyObject*) pad(self, 0, width - self->length, fillchar); |
| } |
| |
| PyDoc_STRVAR(lower__doc__, |
| "S.lower() -> unicode\n\ |
| \n\ |
| Return a copy of the string S converted to lowercase."); |
| |
| static PyObject* |
| unicode_lower(PyUnicodeObject *self) |
| { |
| return fixup(self, fixlower); |
| } |
| |
| #define LEFTSTRIP 0 |
| #define RIGHTSTRIP 1 |
| #define BOTHSTRIP 2 |
| |
| /* Arrays indexed by above */ |
| static const char *stripformat[] = {"|O:lstrip", "|O:rstrip", "|O:strip"}; |
| |
| #define STRIPNAME(i) (stripformat[i]+3) |
| |
| /* externally visible for str.strip(unicode) */ |
| PyObject * |
| _PyUnicode_XStrip(PyUnicodeObject *self, int striptype, PyObject *sepobj) |
| { |
| Py_UNICODE *s = PyUnicode_AS_UNICODE(self); |
| Py_ssize_t len = PyUnicode_GET_SIZE(self); |
| Py_UNICODE *sep = PyUnicode_AS_UNICODE(sepobj); |
| Py_ssize_t seplen = PyUnicode_GET_SIZE(sepobj); |
| Py_ssize_t i, j; |
| |
| BLOOM_MASK sepmask = make_bloom_mask(sep, seplen); |
| |
| i = 0; |
| if (striptype != RIGHTSTRIP) { |
| while (i < len && BLOOM_MEMBER(sepmask, s[i], sep, seplen)) { |
| i++; |
| } |
| } |
| |
| j = len; |
| if (striptype != LEFTSTRIP) { |
| do { |
| j--; |
| } while (j >= i && BLOOM_MEMBER(sepmask, s[j], sep, seplen)); |
| j++; |
| } |
| |
| if (i == 0 && j == len && PyUnicode_CheckExact(self)) { |
| Py_INCREF(self); |
| return (PyObject*)self; |
| } |
| else |
| return PyUnicode_FromUnicode(s+i, j-i); |
| } |
| |
| |
| static PyObject * |
| do_strip(PyUnicodeObject *self, int striptype) |
| { |
| Py_UNICODE *s = PyUnicode_AS_UNICODE(self); |
| Py_ssize_t len = PyUnicode_GET_SIZE(self), i, j; |
| |
| i = 0; |
| if (striptype != RIGHTSTRIP) { |
| while (i < len && Py_UNICODE_ISSPACE(s[i])) { |
| i++; |
| } |
| } |
| |
| j = len; |
| if (striptype != LEFTSTRIP) { |
| do { |
| j--; |
| } while (j >= i && Py_UNICODE_ISSPACE(s[j])); |
| j++; |
| } |
| |
| if (i == 0 && j == len && PyUnicode_CheckExact(self)) { |
| Py_INCREF(self); |
| return (PyObject*)self; |
| } |
| else |
| return PyUnicode_FromUnicode(s+i, j-i); |
| } |
| |
| |
| static PyObject * |
| do_argstrip(PyUnicodeObject *self, int striptype, PyObject *args) |
| { |
| PyObject *sep = NULL; |
| |
| if (!PyArg_ParseTuple(args, (char *)stripformat[striptype], &sep)) |
| return NULL; |
| |
| if (sep != NULL && sep != Py_None) { |
| if (PyUnicode_Check(sep)) |
| return _PyUnicode_XStrip(self, striptype, sep); |
| else if (PyString_Check(sep)) { |
| PyObject *res; |
| sep = PyUnicode_FromObject(sep); |
| if (sep==NULL) |
| return NULL; |
| res = _PyUnicode_XStrip(self, striptype, sep); |
| Py_DECREF(sep); |
| return res; |
| } |
| else { |
| PyErr_Format(PyExc_TypeError, |
| "%s arg must be None, unicode or str", |
| STRIPNAME(striptype)); |
| return NULL; |
| } |
| } |
| |
| return do_strip(self, striptype); |
| } |
| |
| |
| PyDoc_STRVAR(strip__doc__, |
| "S.strip([chars]) -> unicode\n\ |
| \n\ |
| Return a copy of the string S with leading and trailing\n\ |
| whitespace removed.\n\ |
| If chars is given and not None, remove characters in chars instead.\n\ |
| If chars is a str, it will be converted to unicode before stripping"); |
| |
| static PyObject * |
| unicode_strip(PyUnicodeObject *self, PyObject *args) |
| { |
| if (PyTuple_GET_SIZE(args) == 0) |
| return do_strip(self, BOTHSTRIP); /* Common case */ |
| else |
| return do_argstrip(self, BOTHSTRIP, args); |
| } |
| |
| |
| PyDoc_STRVAR(lstrip__doc__, |
| "S.lstrip([chars]) -> unicode\n\ |
| \n\ |
| Return a copy of the string S with leading whitespace removed.\n\ |
| If chars is given and not None, remove characters in chars instead.\n\ |
| If chars is a str, it will be converted to unicode before stripping"); |
| |
| static PyObject * |
| unicode_lstrip(PyUnicodeObject *self, PyObject *args) |
| { |
| if (PyTuple_GET_SIZE(args) == 0) |
| return do_strip(self, LEFTSTRIP); /* Common case */ |
| else |
| return do_argstrip(self, LEFTSTRIP, args); |
| } |
| |
| |
| PyDoc_STRVAR(rstrip__doc__, |
| "S.rstrip([chars]) -> unicode\n\ |
| \n\ |
| Return a copy of the string S with trailing whitespace removed.\n\ |
| If chars is given and not None, remove characters in chars instead.\n\ |
| If chars is a str, it will be converted to unicode before stripping"); |
| |
| static PyObject * |
| unicode_rstrip(PyUnicodeObject *self, PyObject *args) |
| { |
| if (PyTuple_GET_SIZE(args) == 0) |
| return do_strip(self, RIGHTSTRIP); /* Common case */ |
| else |
| return do_argstrip(self, RIGHTSTRIP, args); |
| } |
| |
| |
| static PyObject* |
| unicode_repeat(PyUnicodeObject *str, Py_ssize_t len) |
| { |
| PyUnicodeObject *u; |
| Py_UNICODE *p; |
| Py_ssize_t nchars; |
| size_t nbytes; |
| |
| if (len < 0) |
| len = 0; |
| |
| if (len == 1 && PyUnicode_CheckExact(str)) { |
| /* no repeat, return original string */ |
| Py_INCREF(str); |
| return (PyObject*) str; |
| } |
| |
| /* ensure # of chars needed doesn't overflow int and # of bytes |
| * needed doesn't overflow size_t |
| */ |
| nchars = len * str->length; |
| if (len && nchars / len != str->length) { |
| PyErr_SetString(PyExc_OverflowError, |
| "repeated string is too long"); |
| return NULL; |
| } |
| nbytes = (nchars + 1) * sizeof(Py_UNICODE); |
| if (nbytes / sizeof(Py_UNICODE) != (size_t)(nchars + 1)) { |
| PyErr_SetString(PyExc_OverflowError, |
| "repeated string is too long"); |
| return NULL; |
| } |
| u = _PyUnicode_New(nchars); |
| if (!u) |
| return NULL; |
| |
| p = u->str; |
| |
| if (str->length == 1 && len > 0) { |
| Py_UNICODE_FILL(p, str->str[0], len); |
| } else { |
| Py_ssize_t done = 0; /* number of characters copied this far */ |
| if (done < nchars) { |
| Py_UNICODE_COPY(p, str->str, str->length); |
| done = str->length; |
| } |
| while (done < nchars) { |
| int n = (done <= nchars-done) ? done : nchars-done; |
| Py_UNICODE_COPY(p+done, p, n); |
| done += n; |
| } |
| } |
| |
| return (PyObject*) u; |
| } |
| |
| PyObject *PyUnicode_Replace(PyObject *obj, |
| PyObject *subobj, |
| PyObject *replobj, |
| Py_ssize_t maxcount) |
| { |
| PyObject *self; |
| PyObject *str1; |
| PyObject *str2; |
| PyObject *result; |
| |
| self = PyUnicode_FromObject(obj); |
| if (self == NULL) |
| return NULL; |
| str1 = PyUnicode_FromObject(subobj); |
| if (str1 == NULL) { |
| Py_DECREF(self); |
| return NULL; |
| } |
| str2 = PyUnicode_FromObject(replobj); |
| if (str2 == NULL) { |
| Py_DECREF(self); |
| Py_DECREF(str1); |
| return NULL; |
| } |
| result = replace((PyUnicodeObject *)self, |
| (PyUnicodeObject *)str1, |
| (PyUnicodeObject *)str2, |
| maxcount); |
| Py_DECREF(self); |
| Py_DECREF(str1); |
| Py_DECREF(str2); |
| return result; |
| } |
| |
| PyDoc_STRVAR(replace__doc__, |
| "S.replace (old, new[, maxsplit]) -> unicode\n\ |
| \n\ |
| Return a copy of S with all occurrences of substring\n\ |
| old replaced by new. If the optional argument maxsplit is\n\ |
| given, only the first maxsplit occurrences are replaced."); |
| |
| static PyObject* |
| unicode_replace(PyUnicodeObject *self, PyObject *args) |
| { |
| PyUnicodeObject *str1; |
| PyUnicodeObject *str2; |
| Py_ssize_t maxcount = -1; |
| PyObject *result; |
| |
| if (!PyArg_ParseTuple(args, "OO|n:replace", &str1, &str2, &maxcount)) |
| return NULL; |
| str1 = (PyUnicodeObject *)PyUnicode_FromObject((PyObject *)str1); |
| if (str1 == NULL) |
| return NULL; |
| str2 = (PyUnicodeObject *)PyUnicode_FromObject((PyObject *)str2); |
| if (str2 == NULL) { |
| Py_DECREF(str1); |
| return NULL; |
| } |
| |
| result = replace(self, str1, str2, maxcount); |
| |
| Py_DECREF(str1); |
| Py_DECREF(str2); |
| return result; |
| } |
| |
| static |
| PyObject *unicode_repr(PyObject *unicode) |
| { |
| return unicodeescape_string(PyUnicode_AS_UNICODE(unicode), |
| PyUnicode_GET_SIZE(unicode), |
| 1); |
| } |
| |
| PyDoc_STRVAR(rfind__doc__, |
| "S.rfind(sub [,start [,end]]) -> int\n\ |
| \n\ |
| Return the highest index in S where substring sub is found,\n\ |
| such that sub is contained within s[start,end]. Optional\n\ |
| arguments start and end are interpreted as in slice notation.\n\ |
| \n\ |
| Return -1 on failure."); |
| |
| static PyObject * |
| unicode_rfind(PyUnicodeObject *self, PyObject *args) |
| { |
| PyObject *substring; |
| Py_ssize_t start = 0; |
| Py_ssize_t end = PY_SSIZE_T_MAX; |
| Py_ssize_t result; |
| |
| if (!PyArg_ParseTuple(args, "O|O&O&:rfind", &substring, |
| _PyEval_SliceIndex, &start, _PyEval_SliceIndex, &end)) |
| return NULL; |
| substring = PyUnicode_FromObject(substring); |
| if (!substring) |
| return NULL; |
| |
| result = stringlib_rfind_slice( |
| PyUnicode_AS_UNICODE(self), PyUnicode_GET_SIZE(self), |
| PyUnicode_AS_UNICODE(substring), PyUnicode_GET_SIZE(substring), |
| start, end |
| ); |
| |
| Py_DECREF(substring); |
| |
| return PyInt_FromSsize_t(result); |
| } |
| |
| PyDoc_STRVAR(rindex__doc__, |
| "S.rindex(sub [,start [,end]]) -> int\n\ |
| \n\ |
| Like S.rfind() but raise ValueError when the substring is not found."); |
| |
| static PyObject * |
| unicode_rindex(PyUnicodeObject *self, PyObject *args) |
| { |
| PyObject *substring; |
| Py_ssize_t start = 0; |
| Py_ssize_t end = PY_SSIZE_T_MAX; |
| Py_ssize_t result; |
| |
| if (!PyArg_ParseTuple(args, "O|O&O&:rindex", &substring, |
| _PyEval_SliceIndex, &start, _PyEval_SliceIndex, &end)) |
| return NULL; |
| substring = PyUnicode_FromObject(substring); |
| if (!substring) |
| return NULL; |
| |
| result = stringlib_rfind_slice( |
| PyUnicode_AS_UNICODE(self), PyUnicode_GET_SIZE(self), |
| PyUnicode_AS_UNICODE(substring), PyUnicode_GET_SIZE(substring), |
| start, end |
| ); |
| |
| Py_DECREF(substring); |
| |
| if (result < 0) { |
| PyErr_SetString(PyExc_ValueError, "substring not found"); |
| return NULL; |
| } |
| return PyInt_FromSsize_t(result); |
| } |
| |
| PyDoc_STRVAR(rjust__doc__, |
| "S.rjust(width[, fillchar]) -> unicode\n\ |
| \n\ |
| Return S right justified in a Unicode string of length width. Padding is\n\ |
| done using the specified fill character (default is a space)."); |
| |
| static PyObject * |
| unicode_rjust(PyUnicodeObject *self, PyObject *args) |
| { |
| Py_ssize_t width; |
| Py_UNICODE fillchar = ' '; |
| |
| if (!PyArg_ParseTuple(args, "n|O&:rjust", &width, convert_uc, &fillchar)) |
| return NULL; |
| |
| if (self->length >= width && PyUnicode_CheckExact(self)) { |
| Py_INCREF(self); |
| return (PyObject*) self; |
| } |
| |
| return (PyObject*) pad(self, width - self->length, 0, fillchar); |
| } |
| |
| static PyObject* |
| unicode_slice(PyUnicodeObject *self, Py_ssize_t start, Py_ssize_t end) |
| { |
| /* standard clamping */ |
| if (start < 0) |
| start = 0; |
| if (end < 0) |
| end = 0; |
| if (end > self->length) |
| end = self->length; |
| if (start == 0 && end == self->length && PyUnicode_CheckExact(self)) { |
| /* full slice, return original string */ |
| Py_INCREF(self); |
| return (PyObject*) self; |
| } |
| if (start > end) |
| start = end; |
| /* copy slice */ |
| return (PyObject*) PyUnicode_FromUnicode(self->str + start, |
| end - start); |
| } |
| |
| PyObject *PyUnicode_Split(PyObject *s, |
| PyObject *sep, |
| Py_ssize_t maxsplit) |
| { |
| PyObject *result; |
| |
| s = PyUnicode_FromObject(s); |
| if (s == NULL) |
| return NULL; |
| if (sep != NULL) { |
| sep = PyUnicode_FromObject(sep); |
| if (sep == NULL) { |
| Py_DECREF(s); |
| return NULL; |
| } |
| } |
| |
| result = split((PyUnicodeObject *)s, (PyUnicodeObject *)sep, maxsplit); |
| |
| Py_DECREF(s); |
| Py_XDECREF(sep); |
| return result; |
| } |
| |
| PyDoc_STRVAR(split__doc__, |
| "S.split([sep [,maxsplit]]) -> list of strings\n\ |
| \n\ |
| Return a list of the words in S, using sep as the\n\ |
| delimiter string. If maxsplit is given, at most maxsplit\n\ |
| splits are done. If sep is not specified or is None,\n\ |
| any whitespace string is a separator."); |
| |
| static PyObject* |
| unicode_split(PyUnicodeObject *self, PyObject *args) |
| { |
| PyObject *substring = Py_None; |
| Py_ssize_t maxcount = -1; |
| |
| if (!PyArg_ParseTuple(args, "|On:split", &substring, &maxcount)) |
| return NULL; |
| |
| if (substring == Py_None) |
| return split(self, NULL, maxcount); |
| else if (PyUnicode_Check(substring)) |
| return split(self, (PyUnicodeObject *)substring, maxcount); |
| else |
| return PyUnicode_Split((PyObject *)self, substring, maxcount); |
| } |
| |
| PyObject * |
| PyUnicode_Partition(PyObject *str_in, PyObject *sep_in) |
| { |
| PyObject* str_obj; |
| PyObject* sep_obj; |
| PyObject* out; |
| |
| str_obj = PyUnicode_FromObject(str_in); |
| if (!str_obj) |
| return NULL; |
| sep_obj = PyUnicode_FromObject(sep_in); |
| if (!sep_obj) { |
| Py_DECREF(str_obj); |
| return NULL; |
| } |
| |
| out = stringlib_partition( |
| str_obj, PyUnicode_AS_UNICODE(str_obj), PyUnicode_GET_SIZE(str_obj), |
| sep_obj, PyUnicode_AS_UNICODE(sep_obj), PyUnicode_GET_SIZE(sep_obj) |
| ); |
| |
| Py_DECREF(sep_obj); |
| Py_DECREF(str_obj); |
| |
| return out; |
| } |
| |
| |
| PyObject * |
| PyUnicode_RPartition(PyObject *str_in, PyObject *sep_in) |
| { |
| PyObject* str_obj; |
| PyObject* sep_obj; |
| PyObject* out; |
| |
| str_obj = PyUnicode_FromObject(str_in); |
| if (!str_obj) |
| return NULL; |
| sep_obj = PyUnicode_FromObject(sep_in); |
| if (!sep_obj) { |
| Py_DECREF(str_obj); |
| return NULL; |
| } |
| |
| out = stringlib_rpartition( |
| str_obj, PyUnicode_AS_UNICODE(str_obj), PyUnicode_GET_SIZE(str_obj), |
| sep_obj, PyUnicode_AS_UNICODE(sep_obj), PyUnicode_GET_SIZE(sep_obj) |
| ); |
| |
| Py_DECREF(sep_obj); |
| Py_DECREF(str_obj); |
| |
| return out; |
| } |
| |
| PyDoc_STRVAR(partition__doc__, |
| "S.partition(sep) -> (head, sep, tail)\n\ |
| \n\ |
| Searches for the separator sep in S, and returns the part before it,\n\ |
| the separator itself, and the part after it. If the separator is not\n\ |
| found, returns S and two empty strings."); |
| |
| static PyObject* |
| unicode_partition(PyUnicodeObject *self, PyObject *separator) |
| { |
| return PyUnicode_Partition((PyObject *)self, separator); |
| } |
| |
| PyDoc_STRVAR(rpartition__doc__, |
| "S.rpartition(sep) -> (head, sep, tail)\n\ |
| \n\ |
| Searches for the separator sep in S, starting at the end of S, and returns\n\ |
| the part before it, the separator itself, and the part after it. If the\n\ |
| separator is not found, returns S and two empty strings."); |
| |
| static PyObject* |
| unicode_rpartition(PyUnicodeObject *self, PyObject *separator) |
| { |
| return PyUnicode_RPartition((PyObject *)self, separator); |
| } |
| |
| PyObject *PyUnicode_RSplit(PyObject *s, |
| PyObject *sep, |
| Py_ssize_t maxsplit) |
| { |
| PyObject *result; |
| |
| s = PyUnicode_FromObject(s); |
| if (s == NULL) |
| return NULL; |
| if (sep != NULL) { |
| sep = PyUnicode_FromObject(sep); |
| if (sep == NULL) { |
| Py_DECREF(s); |
| return NULL; |
| } |
| } |
| |
| result = rsplit((PyUnicodeObject *)s, (PyUnicodeObject *)sep, maxsplit); |
| |
| Py_DECREF(s); |
| Py_XDECREF(sep); |
| return result; |
| } |
| |
| PyDoc_STRVAR(rsplit__doc__, |
| "S.rsplit([sep [,maxsplit]]) -> list of strings\n\ |
| \n\ |
| Return a list of the words in S, using sep as the\n\ |
| delimiter string, starting at the end of the string and\n\ |
| working to the front. If maxsplit is given, at most maxsplit\n\ |
| splits are done. If sep is not specified, any whitespace string\n\ |
| is a separator."); |
| |
| static PyObject* |
| unicode_rsplit(PyUnicodeObject *self, PyObject *args) |
| { |
| PyObject *substring = Py_None; |
| Py_ssize_t maxcount = -1; |
| |
| if (!PyArg_ParseTuple(args, "|On:rsplit", &substring, &maxcount)) |
| return NULL; |
| |
| if (substring == Py_None) |
| return rsplit(self, NULL, maxcount); |
| else if (PyUnicode_Check(substring)) |
| return rsplit(self, (PyUnicodeObject *)substring, maxcount); |
| else |
| return PyUnicode_RSplit((PyObject *)self, substring, maxcount); |
| } |
| |
| PyDoc_STRVAR(splitlines__doc__, |
| "S.splitlines([keepends]]) -> list of strings\n\ |
| \n\ |
| Return a list of the lines in S, breaking at line boundaries.\n\ |
| Line breaks are not included in the resulting list unless keepends\n\ |
| is given and true."); |
| |
| static PyObject* |
| unicode_splitlines(PyUnicodeObject *self, PyObject *args) |
| { |
| int keepends = 0; |
| |
| if (!PyArg_ParseTuple(args, "|i:splitlines", &keepends)) |
| return NULL; |
| |
| return PyUnicode_Splitlines((PyObject *)self, keepends); |
| } |
| |
| static |
| PyObject *unicode_str(PyUnicodeObject *self) |
| { |
| return PyUnicode_AsEncodedString((PyObject *)self, NULL, NULL); |
| } |
| |
| PyDoc_STRVAR(swapcase__doc__, |
| "S.swapcase() -> unicode\n\ |
| \n\ |
| Return a copy of S with uppercase characters converted to lowercase\n\ |
| and vice versa."); |
| |
| static PyObject* |
| unicode_swapcase(PyUnicodeObject *self) |
| { |
| return fixup(self, fixswapcase); |
| } |
| |
| PyDoc_STRVAR(translate__doc__, |
| "S.translate(table) -> unicode\n\ |
| \n\ |
| Return a copy of the string S, where all characters have been mapped\n\ |
| through the given translation table, which must be a mapping of\n\ |
| Unicode ordinals to Unicode ordinals, Unicode strings or None.\n\ |
| Unmapped characters are left untouched. Characters mapped to None\n\ |
| are deleted."); |
| |
| static PyObject* |
| unicode_translate(PyUnicodeObject *self, PyObject *table) |
| { |
| return PyUnicode_TranslateCharmap(self->str, |
| self->length, |
| table, |
| "ignore"); |
| } |
| |
| PyDoc_STRVAR(upper__doc__, |
| "S.upper() -> unicode\n\ |
| \n\ |
| Return a copy of S converted to uppercase."); |
| |
| static PyObject* |
| unicode_upper(PyUnicodeObject *self) |
| { |
| return fixup(self, fixupper); |
| } |
| |
| PyDoc_STRVAR(zfill__doc__, |
| "S.zfill(width) -> unicode\n\ |
| \n\ |
| Pad a numeric string x with zeros on the left, to fill a field\n\ |
| of the specified width. The string x is never truncated."); |
| |
| static PyObject * |
| unicode_zfill(PyUnicodeObject *self, PyObject *args) |
| { |
| Py_ssize_t fill; |
| PyUnicodeObject *u; |
| |
| Py_ssize_t width; |
| if (!PyArg_ParseTuple(args, "n:zfill", &width)) |
| return NULL; |
| |
| if (self->length >= width) { |
| if (PyUnicode_CheckExact(self)) { |
| Py_INCREF(self); |
| return (PyObject*) self; |
| } |
| else |
| return PyUnicode_FromUnicode( |
| PyUnicode_AS_UNICODE(self), |
| PyUnicode_GET_SIZE(self) |
| ); |
| } |
| |
| fill = width - self->length; |
| |
| u = pad(self, fill, 0, '0'); |
| |
| if (u == NULL) |
| return NULL; |
| |
| if (u->str[fill] == '+' || u->str[fill] == '-') { |
| /* move sign to beginning of string */ |
| u->str[0] = u->str[fill]; |
| u->str[fill] = '0'; |
| } |
| |
| return (PyObject*) u; |
| } |
| |
| #if 0 |
| static PyObject* |
| unicode_freelistsize(PyUnicodeObject *self) |
| { |
| return PyInt_FromLong(unicode_freelist_size); |
| } |
| #endif |
| |
| PyDoc_STRVAR(startswith__doc__, |
| "S.startswith(prefix[, start[, end]]) -> bool\n\ |
| \n\ |
| Return True if S starts with the specified prefix, False otherwise.\n\ |
| With optional start, test S beginning at that position.\n\ |
| With optional end, stop comparing S at that position.\n\ |
| prefix can also be a tuple of strings to try."); |
| |
| static PyObject * |
| unicode_startswith(PyUnicodeObject *self, |
| PyObject *args) |
| { |
| PyObject *subobj; |
| PyUnicodeObject *substring; |
| Py_ssize_t start = 0; |
| Py_ssize_t end = PY_SSIZE_T_MAX; |
| int result; |
| |
| if (!PyArg_ParseTuple(args, "O|O&O&:startswith", &subobj, |
| _PyEval_SliceIndex, &start, _PyEval_SliceIndex, &end)) |
| return NULL; |
| if (PyTuple_Check(subobj)) { |
| Py_ssize_t i; |
| for (i = 0; i < PyTuple_GET_SIZE(subobj); i++) { |
| substring = (PyUnicodeObject *)PyUnicode_FromObject( |
| PyTuple_GET_ITEM(subobj, i)); |
| if (substring == NULL) |
| return NULL; |
| result = tailmatch(self, substring, start, end, -1); |
| Py_DECREF(substring); |
| if (result) { |
| Py_RETURN_TRUE; |
| } |
| } |
| /* nothing matched */ |
| Py_RETURN_FALSE; |
| } |
| substring = (PyUnicodeObject *)PyUnicode_FromObject(subobj); |
| if (substring == NULL) |
| return NULL; |
| result = tailmatch(self, substring, start, end, -1); |
| Py_DECREF(substring); |
| return PyBool_FromLong(result); |
| } |
| |
| |
| PyDoc_STRVAR(endswith__doc__, |
| "S.endswith(suffix[, start[, end]]) -> bool\n\ |
| \n\ |
| Return True if S ends with the specified suffix, False otherwise.\n\ |
| With optional start, test S beginning at that position.\n\ |
| With optional end, stop comparing S at that position.\n\ |
| suffix can also be a tuple of strings to try."); |
| |
| static PyObject * |
| unicode_endswith(PyUnicodeObject *self, |
| PyObject *args) |
| { |
| PyObject *subobj; |
| PyUnicodeObject *substring; |
| Py_ssize_t start = 0; |
| Py_ssize_t end = PY_SSIZE_T_MAX; |
| int result; |
| |
| if (!PyArg_ParseTuple(args, "O|O&O&:endswith", &subobj, |
| _PyEval_SliceIndex, &start, _PyEval_SliceIndex, &end)) |
| return NULL; |
| if (PyTuple_Check(subobj)) { |
| Py_ssize_t i; |
| for (i = 0; i < PyTuple_GET_SIZE(subobj); i++) { |
| substring = (PyUnicodeObject *)PyUnicode_FromObject( |
| PyTuple_GET_ITEM(subobj, i)); |
| if (substring == NULL) |
| return NULL; |
| result = tailmatch(self, substring, start, end, +1); |
| Py_DECREF(substring); |
| if (result) { |
| Py_RETURN_TRUE; |
| } |
| } |
| Py_RETURN_FALSE; |
| } |
| substring = (PyUnicodeObject *)PyUnicode_FromObject(subobj); |
| if (substring == NULL) |
| return NULL; |
| |
| result = tailmatch(self, substring, start, end, +1); |
| Py_DECREF(substring); |
| return PyBool_FromLong(result); |
| } |
| |
| |
| |
| static PyObject * |
| unicode_getnewargs(PyUnicodeObject *v) |
| { |
| return Py_BuildValue("(u#)", v->str, v->length); |
| } |
| |
| |
| static PyMethodDef unicode_methods[] = { |
| |
| /* Order is according to common usage: often used methods should |
| appear first, since lookup is done sequentially. */ |
| |
| {"encode", (PyCFunction) unicode_encode, METH_VARARGS, encode__doc__}, |
| {"replace", (PyCFunction) unicode_replace, METH_VARARGS, replace__doc__}, |
| {"split", (PyCFunction) unicode_split, METH_VARARGS, split__doc__}, |
| {"rsplit", (PyCFunction) unicode_rsplit, METH_VARARGS, rsplit__doc__}, |
| {"join", (PyCFunction) unicode_join, METH_O, join__doc__}, |
| {"capitalize", (PyCFunction) unicode_capitalize, METH_NOARGS, capitalize__doc__}, |
| {"title", (PyCFunction) unicode_title, METH_NOARGS, title__doc__}, |
| {"center", (PyCFunction) unicode_center, METH_VARARGS, center__doc__}, |
| {"count", (PyCFunction) unicode_count, METH_VARARGS, count__doc__}, |
| {"expandtabs", (PyCFunction) unicode_expandtabs, METH_VARARGS, expandtabs__doc__}, |
| {"find", (PyCFunction) unicode_find, METH_VARARGS, find__doc__}, |
| {"partition", (PyCFunction) unicode_partition, METH_O, partition__doc__}, |
| {"index", (PyCFunction) unicode_index, METH_VARARGS, index__doc__}, |
| {"ljust", (PyCFunction) unicode_ljust, METH_VARARGS, ljust__doc__}, |
| {"lower", (PyCFunction) unicode_lower, METH_NOARGS, lower__doc__}, |
| {"lstrip", (PyCFunction) unicode_lstrip, METH_VARARGS, lstrip__doc__}, |
| {"decode", (PyCFunction) unicode_decode, METH_VARARGS, decode__doc__}, |
| /* {"maketrans", (PyCFunction) unicode_maketrans, METH_VARARGS, maketrans__doc__}, */ |
| {"rfind", (PyCFunction) unicode_rfind, METH_VARARGS, rfind__doc__}, |
| {"rindex", (PyCFunction) unicode_rindex, METH_VARARGS, rindex__doc__}, |
| {"rjust", (PyCFunction) unicode_rjust, METH_VARARGS, rjust__doc__}, |
| {"rstrip", (PyCFunction) unicode_rstrip, METH_VARARGS, rstrip__doc__}, |
| {"rpartition", (PyCFunction) unicode_rpartition, METH_O, rpartition__doc__}, |
| {"splitlines", (PyCFunction) unicode_splitlines, METH_VARARGS, splitlines__doc__}, |
| {"strip", (PyCFunction) unicode_strip, METH_VARARGS, strip__doc__}, |
| {"swapcase", (PyCFunction) unicode_swapcase, METH_NOARGS, swapcase__doc__}, |
| {"translate", (PyCFunction) unicode_translate, METH_O, translate__doc__}, |
| {"upper", (PyCFunction) unicode_upper, METH_NOARGS, upper__doc__}, |
| {"startswith", (PyCFunction) unicode_startswith, METH_VARARGS, startswith__doc__}, |
| {"endswith", (PyCFunction) unicode_endswith, METH_VARARGS, endswith__doc__}, |
| {"islower", (PyCFunction) unicode_islower, METH_NOARGS, islower__doc__}, |
| {"isupper", (PyCFunction) unicode_isupper, METH_NOARGS, isupper__doc__}, |
| {"istitle", (PyCFunction) unicode_istitle, METH_NOARGS, istitle__doc__}, |
| {"isspace", (PyCFunction) unicode_isspace, METH_NOARGS, isspace__doc__}, |
| {"isdecimal", (PyCFunction) unicode_isdecimal, METH_NOARGS, isdecimal__doc__}, |
| {"isdigit", (PyCFunction) unicode_isdigit, METH_NOARGS, isdigit__doc__}, |
| {"isnumeric", (PyCFunction) unicode_isnumeric, METH_NOARGS, isnumeric__doc__}, |
| {"isalpha", (PyCFunction) unicode_isalpha, METH_NOARGS, isalpha__doc__}, |
| {"isalnum", (PyCFunction) unicode_isalnum, METH_NOARGS, isalnum__doc__}, |
| {"zfill", (PyCFunction) unicode_zfill, METH_VARARGS, zfill__doc__}, |
| #if 0 |
| {"capwords", (PyCFunction) unicode_capwords, METH_NOARGS, capwords__doc__}, |
| #endif |
| |
| #if 0 |
| /* This one is just used for debugging the implementation. */ |
| {"freelistsize", (PyCFunction) unicode_freelistsize, METH_NOARGS}, |
| #endif |
| |
| {"__getnewargs__", (PyCFunction)unicode_getnewargs, METH_NOARGS}, |
| {NULL, NULL} |
| }; |
| |
| static PyObject * |
| unicode_mod(PyObject *v, PyObject *w) |
| { |
| if (!PyUnicode_Check(v)) { |
| Py_INCREF(Py_NotImplemented); |
| return Py_NotImplemented; |
| } |
| return PyUnicode_Format(v, w); |
| } |
| |
| static PyNumberMethods unicode_as_number = { |
| 0, /*nb_add*/ |
| 0, /*nb_subtract*/ |
| 0, /*nb_multiply*/ |
| 0, /*nb_divide*/ |
| unicode_mod, /*nb_remainder*/ |
| }; |
| |
| static PySequenceMethods unicode_as_sequence = { |
| (lenfunc) unicode_length, /* sq_length */ |
| PyUnicode_Concat, /* sq_concat */ |
| (ssizeargfunc) unicode_repeat, /* sq_repeat */ |
| (ssizeargfunc) unicode_getitem, /* sq_item */ |
| (ssizessizeargfunc) unicode_slice, /* sq_slice */ |
| 0, /* sq_ass_item */ |
| 0, /* sq_ass_slice */ |
| PyUnicode_Contains, /* sq_contains */ |
| }; |
| |
| #define HASINDEX(o) PyType_HasFeature((o)->ob_type, Py_TPFLAGS_HAVE_INDEX) |
| |
| static PyObject* |
| unicode_subscript(PyUnicodeObject* self, PyObject* item) |
| { |
| PyNumberMethods *nb = item->ob_type->tp_as_number; |
| if (nb != NULL && HASINDEX(item) && nb->nb_index != NULL) { |
| Py_ssize_t i = nb->nb_index(item); |
| if (i == -1 && PyErr_Occurred()) |
| return NULL; |
| if (i < 0) |
| i += PyUnicode_GET_SIZE(self); |
| return unicode_getitem(self, i); |
| } else if (PySlice_Check(item)) { |
| Py_ssize_t start, stop, step, slicelength, cur, i; |
| Py_UNICODE* source_buf; |
| Py_UNICODE* result_buf; |
| PyObject* result; |
| |
| if (PySlice_GetIndicesEx((PySliceObject*)item, PyUnicode_GET_SIZE(self), |
| &start, &stop, &step, &slicelength) < 0) { |
| return NULL; |
| } |
| |
| if (slicelength <= 0) { |
| return PyUnicode_FromUnicode(NULL, 0); |
| } else { |
| source_buf = PyUnicode_AS_UNICODE((PyObject*)self); |
| result_buf = (Py_UNICODE *)PyMem_MALLOC(slicelength* |
| sizeof(Py_UNICODE)); |
| |
| if (result_buf == NULL) |
| return PyErr_NoMemory(); |
| |
| for (cur = start, i = 0; i < slicelength; cur += step, i++) { |
| result_buf[i] = source_buf[cur]; |
| } |
| |
| result = PyUnicode_FromUnicode(result_buf, slicelength); |
| PyMem_FREE(result_buf); |
| return result; |
| } |
| } else { |
| PyErr_SetString(PyExc_TypeError, "string indices must be integers"); |
| return NULL; |
| } |
| } |
| |
| static PyMappingMethods unicode_as_mapping = { |
| (lenfunc)unicode_length, /* mp_length */ |
| (binaryfunc)unicode_subscript, /* mp_subscript */ |
| (objobjargproc)0, /* mp_ass_subscript */ |
| }; |
| |
| static Py_ssize_t |
| unicode_buffer_getreadbuf(PyUnicodeObject *self, |
| Py_ssize_t index, |
| const void **ptr) |
| { |
| if (index != 0) { |
| PyErr_SetString(PyExc_SystemError, |
| "accessing non-existent unicode segment"); |
| return -1; |
| } |
| *ptr = (void *) self->str; |
| return PyUnicode_GET_DATA_SIZE(self); |
| } |
| |
| static Py_ssize_t |
| unicode_buffer_getwritebuf(PyUnicodeObject *self, Py_ssize_t index, |
| const void **ptr) |
| { |
| PyErr_SetString(PyExc_TypeError, |
| "cannot use unicode as modifiable buffer"); |
| return -1; |
| } |
| |
| static int |
| unicode_buffer_getsegcount(PyUnicodeObject *self, |
| Py_ssize_t *lenp) |
| { |
| if (lenp) |
| *lenp = PyUnicode_GET_DATA_SIZE(self); |
| return 1; |
| } |
| |
| static Py_ssize_t |
| unicode_buffer_getcharbuf(PyUnicodeObject *self, |
| Py_ssize_t index, |
| const void **ptr) |
| { |
| PyObject *str; |
| |
| if (index != 0) { |
| PyErr_SetString(PyExc_SystemError, |
| "accessing non-existent unicode segment"); |
| return -1; |
| } |
| str = _PyUnicode_AsDefaultEncodedString((PyObject *)self, NULL); |
| if (str == NULL) |
| return -1; |
| *ptr = (void *) PyString_AS_STRING(str); |
| return PyString_GET_SIZE(str); |
| } |
| |
| /* Helpers for PyUnicode_Format() */ |
| |
| static PyObject * |
| getnextarg(PyObject *args, Py_ssize_t arglen, Py_ssize_t *p_argidx) |
| { |
| Py_ssize_t argidx = *p_argidx; |
| if (argidx < arglen) { |
| (*p_argidx)++; |
| if (arglen < 0) |
| return args; |
| else |
| return PyTuple_GetItem(args, argidx); |
| } |
| PyErr_SetString(PyExc_TypeError, |
| "not enough arguments for format string"); |
| return NULL; |
| } |
| |
| #define F_LJUST (1<<0) |
| #define F_SIGN (1<<1) |
| #define F_BLANK (1<<2) |
| #define F_ALT (1<<3) |
| #define F_ZERO (1<<4) |
| |
| static Py_ssize_t |
| strtounicode(Py_UNICODE *buffer, const char *charbuffer) |
| { |
| register Py_ssize_t i; |
| Py_ssize_t len = strlen(charbuffer); |
| for (i = len - 1; i >= 0; i--) |
| buffer[i] = (Py_UNICODE) charbuffer[i]; |
| |
| return len; |
| } |
| |
| static int |
| doubletounicode(Py_UNICODE *buffer, size_t len, const char *format, double x) |
| { |
| Py_ssize_t result; |
| |
| PyOS_ascii_formatd((char *)buffer, len, format, x); |
| result = strtounicode(buffer, (char *)buffer); |
| return Py_SAFE_DOWNCAST(result, Py_ssize_t, int); |
| } |
| |
| static int |
| longtounicode(Py_UNICODE *buffer, size_t len, const char *format, long x) |
| { |
| Py_ssize_t result; |
| |
| PyOS_snprintf((char *)buffer, len, format, x); |
| result = strtounicode(buffer, (char *)buffer); |
| return Py_SAFE_DOWNCAST(result, Py_ssize_t, int); |
| } |
| |
| /* XXX To save some code duplication, formatfloat/long/int could have been |
| shared with stringobject.c, converting from 8-bit to Unicode after the |
| formatting is done. */ |
| |
| static int |
| formatfloat(Py_UNICODE *buf, |
| size_t buflen, |
| int flags, |
| int prec, |
| int type, |
| PyObject *v) |
| { |
| /* fmt = '%#.' + `prec` + `type` |
| worst case length = 3 + 10 (len of INT_MAX) + 1 = 14 (use 20)*/ |
| char fmt[20]; |
| double x; |
| |
| x = PyFloat_AsDouble(v); |
| if (x == -1.0 && PyErr_Occurred()) |
| return -1; |
| if (prec < 0) |
| prec = 6; |
| if (type == 'f' && (fabs(x) / 1e25) >= 1e25) |
| type = 'g'; |
| /* Worst case length calc to ensure no buffer overrun: |
| |
| 'g' formats: |
| fmt = %#.<prec>g |
| buf = '-' + [0-9]*prec + '.' + 'e+' + (longest exp |
| for any double rep.) |
| len = 1 + prec + 1 + 2 + 5 = 9 + prec |
| |
| 'f' formats: |
| buf = '-' + [0-9]*x + '.' + [0-9]*prec (with x < 50) |
| len = 1 + 50 + 1 + prec = 52 + prec |
| |
| If prec=0 the effective precision is 1 (the leading digit is |
| always given), therefore increase the length by one. |
| |
| */ |
| if ((type == 'g' && buflen <= (size_t)10 + (size_t)prec) || |
| (type == 'f' && buflen <= (size_t)53 + (size_t)prec)) { |
| PyErr_SetString(PyExc_OverflowError, |
| "formatted float is too long (precision too large?)"); |
| return -1; |
| } |
| PyOS_snprintf(fmt, sizeof(fmt), "%%%s.%d%c", |
| (flags&F_ALT) ? "#" : "", |
| prec, type); |
| return doubletounicode(buf, buflen, fmt, x); |
| } |
| |
| static PyObject* |
| formatlong(PyObject *val, int flags, int prec, int type) |
| { |
| char *buf; |
| int i, len; |
| PyObject *str; /* temporary string object. */ |
| PyUnicodeObject *result; |
| |
| str = _PyString_FormatLong(val, flags, prec, type, &buf, &len); |
| if (!str) |
| return NULL; |
| result = _PyUnicode_New(len); |
| if (!result) { |
| Py_DECREF(str); |
| return NULL; |
| } |
| for (i = 0; i < len; i++) |
| result->str[i] = buf[i]; |
| result->str[len] = 0; |
| Py_DECREF(str); |
| return (PyObject*)result; |
| } |
| |
| static int |
| formatint(Py_UNICODE *buf, |
| size_t buflen, |
| int flags, |
| int prec, |
| int type, |
| PyObject *v) |
| { |
| /* fmt = '%#.' + `prec` + 'l' + `type` |
| * worst case length = 3 + 19 (worst len of INT_MAX on 64-bit machine) |
| * + 1 + 1 |
| * = 24 |
| */ |
| char fmt[64]; /* plenty big enough! */ |
| char *sign; |
| long x; |
| |
| x = PyInt_AsLong(v); |
| if (x == -1 && PyErr_Occurred()) |
| return -1; |
| if (x < 0 && type == 'u') { |
| type = 'd'; |
| } |
| if (x < 0 && (type == 'x' || type == 'X' || type == 'o')) |
| sign = "-"; |
| else |
| sign = ""; |
| if (prec < 0) |
| prec = 1; |
| |
| /* buf = '+'/'-'/'' + '0'/'0x'/'' + '[0-9]'*max(prec, len(x in octal)) |
| * worst case buf = '-0x' + [0-9]*prec, where prec >= 11 |
| */ |
| if (buflen <= 14 || buflen <= (size_t)3 + (size_t)prec) { |
| PyErr_SetString(PyExc_OverflowError, |
| "formatted integer is too long (precision too large?)"); |
| return -1; |
| } |
| |
| if ((flags & F_ALT) && |
| (type == 'x' || type == 'X')) { |
| /* When converting under %#x or %#X, there are a number |
| * of issues that cause pain: |
| * - when 0 is being converted, the C standard leaves off |
| * the '0x' or '0X', which is inconsistent with other |
| * %#x/%#X conversions and inconsistent with Python's |
| * hex() function |
| * - there are platforms that violate the standard and |
| * convert 0 with the '0x' or '0X' |
| * (Metrowerks, Compaq Tru64) |
| * - there are platforms that give '0x' when converting |
| * under %#X, but convert 0 in accordance with the |
| * standard (OS/2 EMX) |
| * |
| * We can achieve the desired consistency by inserting our |
| * own '0x' or '0X' prefix, and substituting %x/%X in place |
| * of %#x/%#X. |
| * |
| * Note that this is the same approach as used in |
| * formatint() in stringobject.c |
| */ |
| PyOS_snprintf(fmt, sizeof(fmt), "%s0%c%%.%dl%c", |
| sign, type, prec, type); |
| } |
| else { |
| PyOS_snprintf(fmt, sizeof(fmt), "%s%%%s.%dl%c", |
| sign, (flags&F_ALT) ? "#" : "", |
| prec, type); |
| } |
| if (sign[0]) |
| return longtounicode(buf, buflen, fmt, -x); |
| else |
| return longtounicode(buf, buflen, fmt, x); |
| } |
| |
| static int |
| formatchar(Py_UNICODE *buf, |
| size_t buflen, |
| PyObject *v) |
| { |
| /* presume that the buffer is at least 2 characters long */ |
| if (PyUnicode_Check(v)) { |
| if (PyUnicode_GET_SIZE(v) != 1) |
| goto onError; |
| buf[0] = PyUnicode_AS_UNICODE(v)[0]; |
| } |
| |
| else if (PyString_Check(v)) { |
| if (PyString_GET_SIZE(v) != 1) |
| goto onError; |
| buf[0] = (Py_UNICODE)PyString_AS_STRING(v)[0]; |
| } |
| |
| else { |
| /* Integer input truncated to a character */ |
| long x; |
| x = PyInt_AsLong(v); |
| if (x == -1 && PyErr_Occurred()) |
| goto onError; |
| #ifdef Py_UNICODE_WIDE |
| if (x < 0 || x > 0x10ffff) { |
| PyErr_SetString(PyExc_OverflowError, |
| "%c arg not in range(0x110000) " |
| "(wide Python build)"); |
| return -1; |
| } |
| #else |
| if (x < 0 || x > 0xffff) { |
| PyErr_SetString(PyExc_OverflowError, |
| "%c arg not in range(0x10000) " |
| "(narrow Python build)"); |
| return -1; |
| } |
| #endif |
| buf[0] = (Py_UNICODE) x; |
| } |
| buf[1] = '\0'; |
| return 1; |
| |
| onError: |
| PyErr_SetString(PyExc_TypeError, |
| "%c requires int or char"); |
| return -1; |
| } |
| |
| /* fmt%(v1,v2,...) is roughly equivalent to sprintf(fmt, v1, v2, ...) |
| |
| FORMATBUFLEN is the length of the buffer in which the floats, ints, & |
| chars are formatted. XXX This is a magic number. Each formatting |
| routine does bounds checking to ensure no overflow, but a better |
| solution may be to malloc a buffer of appropriate size for each |
| format. For now, the current solution is sufficient. |
| */ |
| #define FORMATBUFLEN (size_t)120 |
| |
| PyObject *PyUnicode_Format(PyObject *format, |
| PyObject *args) |
| { |
| Py_UNICODE *fmt, *res; |
| Py_ssize_t fmtcnt, rescnt, reslen, arglen, argidx; |
| int args_owned = 0; |
| PyUnicodeObject *result = NULL; |
| PyObject *dict = NULL; |
| PyObject *uformat; |
| |
| if (format == NULL || args == NULL) { |
| PyErr_BadInternalCall(); |
| return NULL; |
| } |
| uformat = PyUnicode_FromObject(format); |
| if (uformat == NULL) |
| return NULL; |
| fmt = PyUnicode_AS_UNICODE(uformat); |
| fmtcnt = PyUnicode_GET_SIZE(uformat); |
| |
| reslen = rescnt = fmtcnt + 100; |
| result = _PyUnicode_New(reslen); |
| if (result == NULL) |
| goto onError; |
| res = PyUnicode_AS_UNICODE(result); |
| |
| if (PyTuple_Check(args)) { |
| arglen = PyTuple_Size(args); |
| argidx = 0; |
| } |
| else { |
| arglen = -1; |
| argidx = -2; |
| } |
| if (args->ob_type->tp_as_mapping && !PyTuple_Check(args) && |
| !PyObject_TypeCheck(args, &PyBaseString_Type)) |
| dict = args; |
| |
| while (--fmtcnt >= 0) { |
| if (*fmt != '%') { |
| if (--rescnt < 0) { |
| rescnt = fmtcnt + 100; |
| reslen += rescnt; |
| if (_PyUnicode_Resize(&result, reslen) < 0) |
| goto onError; |
| res = PyUnicode_AS_UNICODE(result) + reslen - rescnt; |
| --rescnt; |
| } |
| *res++ = *fmt++; |
| } |
| else { |
| /* Got a format specifier */ |
| int flags = 0; |
| Py_ssize_t width = -1; |
| int prec = -1; |
| Py_UNICODE c = '\0'; |
| Py_UNICODE fill; |
| PyObject *v = NULL; |
| PyObject *temp = NULL; |
| Py_UNICODE *pbuf; |
| Py_UNICODE sign; |
| Py_ssize_t len; |
| Py_UNICODE formatbuf[FORMATBUFLEN]; /* For format{float,int,char}() */ |
| |
| fmt++; |
| if (*fmt == '(') { |
| Py_UNICODE *keystart; |
| Py_ssize_t keylen; |
| PyObject *key; |
| int pcount = 1; |
| |
| if (dict == NULL) { |
| PyErr_SetString(PyExc_TypeError, |
| "format requires a mapping"); |
| goto onError; |
| } |
| ++fmt; |
| --fmtcnt; |
| keystart = fmt; |
| /* Skip over balanced parentheses */ |
| while (pcount > 0 && --fmtcnt >= 0) { |
| if (*fmt == ')') |
| --pcount; |
| else if (*fmt == '(') |
| ++pcount; |
| fmt++; |
| } |
| keylen = fmt - keystart - 1; |
| if (fmtcnt < 0 || pcount > 0) { |
| PyErr_SetString(PyExc_ValueError, |
| "incomplete format key"); |
| goto onError; |
| } |
| #if 0 |
| /* keys are converted to strings using UTF-8 and |
| then looked up since Python uses strings to hold |
| variables names etc. in its namespaces and we |
| wouldn't want to break common idioms. */ |
| key = PyUnicode_EncodeUTF8(keystart, |
| keylen, |
| NULL); |
| #else |
| key = PyUnicode_FromUnicode(keystart, keylen); |
| #endif |
| if (key == NULL) |
| goto onError; |
| if (args_owned) { |
| Py_DECREF(args); |
| args_owned = 0; |
| } |
| args = PyObject_GetItem(dict, key); |
| Py_DECREF(key); |
| if (args == NULL) { |
| goto onError; |
| } |
| args_owned = 1; |
| arglen = -1; |
| argidx = -2; |
| } |
| while (--fmtcnt >= 0) { |
| switch (c = *fmt++) { |
| case '-': flags |= F_LJUST; continue; |
| case '+': flags |= F_SIGN; continue; |
| case ' ': flags |= F_BLANK; continue; |
| case '#': flags |= F_ALT; continue; |
| case '0': flags |= F_ZERO; continue; |
| } |
| break; |
| } |
| if (c == '*') { |
| v = getnextarg(args, arglen, &argidx); |
| if (v == NULL) |
| goto onError; |
| if (!PyInt_Check(v)) { |
| PyErr_SetString(PyExc_TypeError, |
| "* wants int"); |
| goto onError; |
| } |
| width = PyInt_AsLong(v); |
| if (width < 0) { |
| flags |= F_LJUST; |
| width = -width; |
| } |
| if (--fmtcnt >= 0) |
| c = *fmt++; |
| } |
| else if (c >= '0' && c <= '9') { |
| width = c - '0'; |
| while (--fmtcnt >= 0) { |
| c = *fmt++; |
| if (c < '0' || c > '9') |
| break; |
| if ((width*10) / 10 != width) { |
| PyErr_SetString(PyExc_ValueError, |
| "width too big"); |
| goto onError; |
| } |
| width = width*10 + (c - '0'); |
| } |
| } |
| if (c == '.') { |
| prec = 0; |
| if (--fmtcnt >= 0) |
| c = *fmt++; |
| if (c == '*') { |
| v = getnextarg(args, arglen, &argidx); |
| if (v == NULL) |
| goto onError; |
| if (!PyInt_Check(v)) { |
| PyErr_SetString(PyExc_TypeError, |
| "* wants int"); |
| goto onError; |
| } |
| prec = PyInt_AsLong(v); |
| if (prec < 0) |
| prec = 0; |
| if (--fmtcnt >= 0) |
| c = *fmt++; |
| } |
| else if (c >= '0' && c <= '9') { |
| prec = c - '0'; |
| while (--fmtcnt >= 0) { |
| c = Py_CHARMASK(*fmt++); |
| if (c < '0' || c > '9') |
| break; |
| if ((prec*10) / 10 != prec) { |
| PyErr_SetString(PyExc_ValueError, |
| "prec too big"); |
| goto onError; |
| } |
| prec = prec*10 + (c - '0'); |
| } |
| } |
| } /* prec */ |
| if (fmtcnt >= 0) { |
| if (c == 'h' || c == 'l' || c == 'L') { |
| if (--fmtcnt >= 0) |
| c = *fmt++; |
| } |
| } |
| if (fmtcnt < 0) { |
| PyErr_SetString(PyExc_ValueError, |
| "incomplete format"); |
| goto onError; |
| } |
| if (c != '%') { |
| v = getnextarg(args, arglen, &argidx); |
| if (v == NULL) |
| goto onError; |
| } |
| sign = 0; |
| fill = ' '; |
| switch (c) { |
| |
| case '%': |
| pbuf = formatbuf; |
| /* presume that buffer length is at least 1 */ |
| pbuf[0] = '%'; |
| len = 1; |
| break; |
| |
| case 's': |
| case 'r': |
| if (PyUnicode_Check(v) && c == 's') { |
| temp = v; |
| Py_INCREF(temp); |
| } |
| else { |
| PyObject *unicode; |
| if (c == 's') |
| temp = PyObject_Unicode(v); |
| else |
| temp = PyObject_Repr(v); |
| if (temp == NULL) |
| goto onError; |
| if (PyUnicode_Check(temp)) |
| /* nothing to do */; |
| else if (PyString_Check(temp)) { |
| /* convert to string to Unicode */ |
| unicode = PyUnicode_Decode(PyString_AS_STRING(temp), |
| PyString_GET_SIZE(temp), |
| NULL, |
| "strict"); |
| Py_DECREF(temp); |
| temp = unicode; |
| if (temp == NULL) |
| goto onError; |
| } |
| else { |
| Py_DECREF(temp); |
| PyErr_SetString(PyExc_TypeError, |
| "%s argument has non-string str()"); |
| goto onError; |
| } |
| } |
| pbuf = PyUnicode_AS_UNICODE(temp); |
| len = PyUnicode_GET_SIZE(temp); |
| if (prec >= 0 && len > prec) |
| len = prec; |
| break; |
| |
| case 'i': |
| case 'd': |
| case 'u': |
| case 'o': |
| case 'x': |
| case 'X': |
| if (c == 'i') |
| c = 'd'; |
| if (PyLong_Check(v)) { |
| temp = formatlong(v, flags, prec, c); |
| if (!temp) |
| goto onError; |
| pbuf = PyUnicode_AS_UNICODE(temp); |
| len = PyUnicode_GET_SIZE(temp); |
| sign = 1; |
| } |
| else { |
| pbuf = formatbuf; |
| len = formatint(pbuf, sizeof(formatbuf)/sizeof(Py_UNICODE), |
| flags, prec, c, v); |
| if (len < 0) |
| goto onError; |
| sign = 1; |
| } |
| if (flags & F_ZERO) |
| fill = '0'; |
| break; |
| |
| case 'e': |
| case 'E': |
| case 'f': |
| case 'F': |
| case 'g': |
| case 'G': |
| if (c == 'F') |
| c = 'f'; |
| pbuf = formatbuf; |
| len = formatfloat(pbuf, sizeof(formatbuf)/sizeof(Py_UNICODE), |
| flags, prec, c, v); |
| if (len < 0) |
| goto onError; |
| sign = 1; |
| if (flags & F_ZERO) |
| fill = '0'; |
| break; |
| |
| case 'c': |
| pbuf = formatbuf; |
| len = formatchar(pbuf, sizeof(formatbuf)/sizeof(Py_UNICODE), v); |
| if (len < 0) |
| goto onError; |
| break; |
| |
| default: |
| PyErr_Format(PyExc_ValueError, |
| "unsupported format character '%c' (0x%x) " |
| "at index %i", |
| (31<=c && c<=126) ? (char)c : '?', |
| (int)c, |
| (int)(fmt -1 - PyUnicode_AS_UNICODE(uformat))); |
| goto onError; |
| } |
| if (sign) { |
| if (*pbuf == '-' || *pbuf == '+') { |
| sign = *pbuf++; |
| len--; |
| } |
| else if (flags & F_SIGN) |
| sign = '+'; |
| else if (flags & F_BLANK) |
| sign = ' '; |
| else |
| sign = 0; |
| } |
| if (width < len) |
| width = len; |
| if (rescnt - (sign != 0) < width) { |
| reslen -= rescnt; |
| rescnt = width + fmtcnt + 100; |
| reslen += rescnt; |
| if (reslen < 0) { |
| Py_XDECREF(temp); |
| PyErr_NoMemory(); |
| goto onError; |
| } |
| if (_PyUnicode_Resize(&result, reslen) < 0) { |
| Py_XDECREF(temp); |
| goto onError; |
| } |
| res = PyUnicode_AS_UNICODE(result) |
| + reslen - rescnt; |
| } |
| if (sign) { |
| if (fill != ' ') |
| *res++ = sign; |
| rescnt--; |
| if (width > len) |
| width--; |
| } |
| if ((flags & F_ALT) && (c == 'x' || c == 'X')) { |
| assert(pbuf[0] == '0'); |
| assert(pbuf[1] == c); |
| if (fill != ' ') { |
| *res++ = *pbuf++; |
| *res++ = *pbuf++; |
| } |
| rescnt -= 2; |
| width -= 2; |
| if (width < 0) |
| width = 0; |
| len -= 2; |
| } |
| if (width > len && !(flags & F_LJUST)) { |
| do { |
| --rescnt; |
| *res++ = fill; |
| } while (--width > len); |
| } |
| if (fill == ' ') { |
| if (sign) |
| *res++ = sign; |
| if ((flags & F_ALT) && (c == 'x' || c == 'X')) { |
| assert(pbuf[0] == '0'); |
| assert(pbuf[1] == c); |
| *res++ = *pbuf++; |
| *res++ = *pbuf++; |
| } |
| } |
| Py_UNICODE_COPY(res, pbuf, len); |
| res += len; |
| rescnt -= len; |
| while (--width >= len) { |
| --rescnt; |
| *res++ = ' '; |
| } |
| if (dict && (argidx < arglen) && c != '%') { |
| PyErr_SetString(PyExc_TypeError, |
| "not all arguments converted during string formatting"); |
| Py_XDECREF(temp); |
| goto onError; |
| } |
| Py_XDECREF(temp); |
| } /* '%' */ |
| } /* until end */ |
| if (argidx < arglen && !dict) { |
| PyErr_SetString(PyExc_TypeError, |
| "not all arguments converted during string formatting"); |
| goto onError; |
| } |
| |
| if (_PyUnicode_Resize(&result, reslen - rescnt) < 0) |
| goto onError; |
| if (args_owned) { |
| Py_DECREF(args); |
| } |
| Py_DECREF(uformat); |
| return (PyObject *)result; |
| |
| onError: |
| Py_XDECREF(result); |
| Py_DECREF(uformat); |
| if (args_owned) { |
| Py_DECREF(args); |
| } |
| return NULL; |
| } |
| |
| static PyBufferProcs unicode_as_buffer = { |
| (readbufferproc) unicode_buffer_getreadbuf, |
| (writebufferproc) unicode_buffer_getwritebuf, |
| (segcountproc) unicode_buffer_getsegcount, |
| (charbufferproc) unicode_buffer_getcharbuf, |
| }; |
| |
| static PyObject * |
| unicode_subtype_new(PyTypeObject *type, PyObject *args, PyObject *kwds); |
| |
| static PyObject * |
| unicode_new(PyTypeObject *type, PyObject *args, PyObject *kwds) |
| { |
| PyObject *x = NULL; |
| static char *kwlist[] = {"string", "encoding", "errors", 0}; |
| char *encoding = NULL; |
| char *errors = NULL; |
| |
| if (type != &PyUnicode_Type) |
| return unicode_subtype_new(type, args, kwds); |
| if (!PyArg_ParseTupleAndKeywords(args, kwds, "|Oss:unicode", |
| kwlist, &x, &encoding, &errors)) |
| return NULL; |
| if (x == NULL) |
| return (PyObject *)_PyUnicode_New(0); |
| if (encoding == NULL && errors == NULL) |
| return PyObject_Unicode(x); |
| else |
| return PyUnicode_FromEncodedObject(x, encoding, errors); |
| } |
| |
| static PyObject * |
| unicode_subtype_new(PyTypeObject *type, PyObject *args, PyObject *kwds) |
| { |
| PyUnicodeObject *tmp, *pnew; |
| Py_ssize_t n; |
| |
| assert(PyType_IsSubtype(type, &PyUnicode_Type)); |
| tmp = (PyUnicodeObject *)unicode_new(&PyUnicode_Type, args, kwds); |
| if (tmp == NULL) |
| return NULL; |
| assert(PyUnicode_Check(tmp)); |
| pnew = (PyUnicodeObject *) type->tp_alloc(type, n = tmp->length); |
| if (pnew == NULL) { |
| Py_DECREF(tmp); |
| return NULL; |
| } |
| pnew->str = PyMem_NEW(Py_UNICODE, n+1); |
| if (pnew->str == NULL) { |
| _Py_ForgetReference((PyObject *)pnew); |
| PyObject_Del(pnew); |
| Py_DECREF(tmp); |
| return PyErr_NoMemory(); |
| } |
| Py_UNICODE_COPY(pnew->str, tmp->str, n+1); |
| pnew->length = n; |
| pnew->hash = tmp->hash; |
| Py_DECREF(tmp); |
| return (PyObject *)pnew; |
| } |
| |
| PyDoc_STRVAR(unicode_doc, |
| "unicode(string [, encoding[, errors]]) -> object\n\ |
| \n\ |
| Create a new Unicode object from the given encoded string.\n\ |
| encoding defaults to the current default string encoding.\n\ |
| errors can be 'strict', 'replace' or 'ignore' and defaults to 'strict'."); |
| |
| PyTypeObject PyUnicode_Type = { |
| PyObject_HEAD_INIT(&PyType_Type) |
| 0, /* ob_size */ |
| "unicode", /* tp_name */ |
| sizeof(PyUnicodeObject), /* tp_size */ |
| 0, /* tp_itemsize */ |
| /* Slots */ |
| (destructor)unicode_dealloc, /* tp_dealloc */ |
| 0, /* tp_print */ |
| 0, /* tp_getattr */ |
| 0, /* tp_setattr */ |
| (cmpfunc) unicode_compare, /* tp_compare */ |
| unicode_repr, /* tp_repr */ |
| &unicode_as_number, /* tp_as_number */ |
| &unicode_as_sequence, /* tp_as_sequence */ |
| &unicode_as_mapping, /* tp_as_mapping */ |
| (hashfunc) unicode_hash, /* tp_hash*/ |
| 0, /* tp_call*/ |
| (reprfunc) unicode_str, /* tp_str */ |
| PyObject_GenericGetAttr, /* tp_getattro */ |
| 0, /* tp_setattro */ |
| &unicode_as_buffer, /* tp_as_buffer */ |
| Py_TPFLAGS_DEFAULT | Py_TPFLAGS_CHECKTYPES | |
| Py_TPFLAGS_BASETYPE, /* tp_flags */ |
| unicode_doc, /* tp_doc */ |
| 0, /* tp_traverse */ |
| 0, /* tp_clear */ |
| 0, /* tp_richcompare */ |
| 0, /* tp_weaklistoffset */ |
| 0, /* tp_iter */ |
| 0, /* tp_iternext */ |
| unicode_methods, /* tp_methods */ |
| 0, /* tp_members */ |
| 0, /* tp_getset */ |
| &PyBaseString_Type, /* tp_base */ |
| 0, /* tp_dict */ |
| 0, /* tp_descr_get */ |
| 0, /* tp_descr_set */ |
| 0, /* tp_dictoffset */ |
| 0, /* tp_init */ |
| 0, /* tp_alloc */ |
| unicode_new, /* tp_new */ |
| PyObject_Del, /* tp_free */ |
| }; |
| |
| /* Initialize the Unicode implementation */ |
| |
| void _PyUnicode_Init(void) |
| { |
| int i; |
| |
| /* XXX - move this array to unicodectype.c ? */ |
| Py_UNICODE linebreak[] = { |
| 0x000A, /* LINE FEED */ |
| 0x000D, /* CARRIAGE RETURN */ |
| 0x001C, /* FILE SEPARATOR */ |
| 0x001D, /* GROUP SEPARATOR */ |
| 0x001E, /* RECORD SEPARATOR */ |
| 0x0085, /* NEXT LINE */ |
| 0x2028, /* LINE SEPARATOR */ |
| 0x2029, /* PARAGRAPH SEPARATOR */ |
| }; |
| |
| /* Init the implementation */ |
| unicode_freelist = NULL; |
| unicode_freelist_size = 0; |
| unicode_empty = _PyUnicode_New(0); |
| strcpy(unicode_default_encoding, "ascii"); |
| for (i = 0; i < 256; i++) |
| unicode_latin1[i] = NULL; |
| if (PyType_Ready(&PyUnicode_Type) < 0) |
| Py_FatalError("Can't initialize 'unicode'"); |
| |
| /* initialize the linebreak bloom filter */ |
| bloom_linebreak = make_bloom_mask( |
| linebreak, sizeof(linebreak) / sizeof(linebreak[0]) |
| ); |
| } |
| |
| /* Finalize the Unicode implementation */ |
| |
| void |
| _PyUnicode_Fini(void) |
| { |
| PyUnicodeObject *u; |
| int i; |
| |
| Py_XDECREF(unicode_empty); |
| unicode_empty = NULL; |
| |
| for (i = 0; i < 256; i++) { |
| if (unicode_latin1[i]) { |
| Py_DECREF(unicode_latin1[i]); |
| unicode_latin1[i] = NULL; |
| } |
| } |
| |
| for (u = unicode_freelist; u != NULL;) { |
| PyUnicodeObject *v = u; |
| u = *(PyUnicodeObject **)u; |
| if (v->str) |
| PyMem_DEL(v->str); |
| Py_XDECREF(v->defenc); |
| PyObject_Del(v); |
| } |
| unicode_freelist = NULL; |
| unicode_freelist_size = 0; |
| } |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| |
| /* |
| Local variables: |
| c-basic-offset: 4 |
| indent-tabs-mode: nil |
| End: |
| */ |