diff options
Diffstat (limited to 'AppPkg/Applications/Python/Python-2.7.10/Objects/unicodeobject.c')
| -rw-r--r-- | AppPkg/Applications/Python/Python-2.7.10/Objects/unicodeobject.c | 8994 |
1 files changed, 8994 insertions, 0 deletions
diff --git a/AppPkg/Applications/Python/Python-2.7.10/Objects/unicodeobject.c b/AppPkg/Applications/Python/Python-2.7.10/Objects/unicodeobject.c new file mode 100644 index 0000000000..41b6f0ec1b --- /dev/null +++ b/AppPkg/Applications/Python/Python-2.7.10/Objects/unicodeobject.c @@ -0,0 +1,8994 @@ +/*
+
+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 PyUnicode_MAXFREELIST 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 PyUnicode_MAXFREELIST *
+ (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 ------------------------------------------------------------
+
+NOTE: In the interpreter's initialization phase, some globals are currently
+ initialized dynamically as needed. In the process Unicode objects may
+ be created before the Unicode type is ready.
+
+*/
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Free list for Unicode objects */
+static PyUnicodeObject *free_list = NULL;
+static int numfree = 0;
+
+/* The empty Unicode object is shared to improve performance. */
+static PyUnicodeObject *unicode_empty = NULL;
+
+#define _Py_RETURN_UNICODE_EMPTY() \
+ do { \
+ if (unicode_empty != NULL) \
+ Py_INCREF(unicode_empty); \
+ else { \
+ unicode_empty = _PyUnicode_New(0); \
+ if (unicode_empty != NULL) \
+ Py_INCREF(unicode_empty); \
+ } \
+ return (PyObject *)unicode_empty; \
+ } while (0)
+
+/* Single character Unicode strings in the Latin-1 range are being
+ shared as well. */
+static PyUnicodeObject *unicode_latin1[256] = {NULL};
+
+/* 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 + 1] = "ascii";
+
+/* Fast detection of the most frequent whitespace characters */
+const unsigned char _Py_ascii_whitespace[] = {
+ 0, 0, 0, 0, 0, 0, 0, 0,
+/* case 0x0009: * CHARACTER TABULATION */
+/* case 0x000A: * LINE FEED */
+/* case 0x000B: * LINE TABULATION */
+/* case 0x000C: * FORM FEED */
+/* case 0x000D: * CARRIAGE RETURN */
+ 0, 1, 1, 1, 1, 1, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+/* case 0x001C: * FILE SEPARATOR */
+/* case 0x001D: * GROUP SEPARATOR */
+/* case 0x001E: * RECORD SEPARATOR */
+/* case 0x001F: * UNIT SEPARATOR */
+ 0, 0, 0, 0, 1, 1, 1, 1,
+/* case 0x0020: * SPACE */
+ 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, 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
+};
+
+/* Same for linebreaks */
+static unsigned char ascii_linebreak[] = {
+ 0, 0, 0, 0, 0, 0, 0, 0,
+/* 0x000A, * LINE FEED */
+/* 0x000B, * LINE TABULATION */
+/* 0x000C, * FORM FEED */
+/* 0x000D, * CARRIAGE RETURN */
+ 0, 0, 1, 1, 1, 1, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+/* 0x001C, * FILE SEPARATOR */
+/* 0x001D, * GROUP SEPARATOR */
+/* 0x001E, * RECORD SEPARATOR */
+ 0, 0, 0, 0, 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, 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
+};
+
+
+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 */
+
+#if LONG_BIT >= 128
+#define BLOOM_WIDTH 128
+#elif LONG_BIT >= 64
+#define BLOOM_WIDTH 64
+#elif LONG_BIT >= 32
+#define BLOOM_WIDTH 32
+#else
+#error "LONG_BIT is smaller than 32"
+#endif
+
+#define BLOOM_MASK unsigned long
+
+static BLOOM_MASK bloom_linebreak = ~(BLOOM_MASK)0;
+
+#define BLOOM_ADD(mask, ch) ((mask |= (1UL << ((ch) & (BLOOM_WIDTH - 1)))))
+#define BLOOM(mask, ch) ((mask & (1UL << ((ch) & (BLOOM_WIDTH - 1)))))
+
+#define BLOOM_LINEBREAK(ch) \
+ ((ch) < 128U ? ascii_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 */
+
+ BLOOM_MASK mask;
+ Py_ssize_t i;
+
+ mask = 0;
+ for (i = 0; i < len; i++)
+ BLOOM_ADD(mask, ptr[i]);
+
+ 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;
+ unicode->str = PyObject_REALLOC(unicode->str,
+ sizeof(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_CLEAR(unicode->defenc);
+ }
+ unicode->hash = -1;
+
+ return 0;
+}
+
+/* We allocate one more byte to make sure the string is
+ Ux0000 terminated; some code relies on that.
+
+ 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;
+ }
+
+ /* Ensure we won't overflow the size. */
+ if (length > ((PY_SSIZE_T_MAX / sizeof(Py_UNICODE)) - 1)) {
+ return (PyUnicodeObject *)PyErr_NoMemory();
+ }
+
+ /* Unicode freelist & memory allocation */
+ if (free_list) {
+ unicode = free_list;
+ free_list = *(PyUnicodeObject **)unicode;
+ numfree--;
+ if (unicode->str) {
+ /* Keep-Alive optimization: we only upsize the buffer,
+ never downsize it. */
+ if ((unicode->length < length) &&
+ unicode_resize(unicode, length) < 0) {
+ PyObject_DEL(unicode->str);
+ unicode->str = NULL;
+ }
+ }
+ else {
+ size_t new_size = sizeof(Py_UNICODE) * ((size_t)length + 1);
+ unicode->str = (Py_UNICODE*) PyObject_MALLOC(new_size);
+ }
+ PyObject_INIT(unicode, &PyUnicode_Type);
+ }
+ else {
+ size_t new_size;
+ unicode = PyObject_New(PyUnicodeObject, &PyUnicode_Type);
+ if (unicode == NULL)
+ return NULL;
+ new_size = sizeof(Py_UNICODE) * ((size_t)length + 1);
+ unicode->str = (Py_UNICODE*) PyObject_MALLOC(new_size);
+ }
+
+ 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:
+ /* XXX UNREF/NEWREF interface should be more symmetrical */
+ _Py_DEC_REFTOTAL;
+ _Py_ForgetReference((PyObject *)unicode);
+ PyObject_Del(unicode);
+ return NULL;
+}
+
+static
+void unicode_dealloc(register PyUnicodeObject *unicode)
+{
+ if (PyUnicode_CheckExact(unicode) &&
+ numfree < PyUnicode_MAXFREELIST) {
+ /* Keep-Alive optimization */
+ if (unicode->length >= KEEPALIVE_SIZE_LIMIT) {
+ PyObject_DEL(unicode->str);
+ unicode->str = NULL;
+ unicode->length = 0;
+ }
+ if (unicode->defenc) {
+ Py_CLEAR(unicode->defenc);
+ }
+ /* Add to free list */
+ *(PyUnicodeObject **)unicode = free_list;
+ free_list = unicode;
+ numfree++;
+ }
+ else {
+ PyObject_DEL(unicode->str);
+ Py_XDECREF(unicode->defenc);
+ Py_TYPE(unicode)->tp_free((PyObject *)unicode);
+ }
+}
+
+static
+int _PyUnicode_Resize(PyUnicodeObject **unicode, Py_ssize_t length)
+{
+ register PyUnicodeObject *v;
+
+ /* Argument checks */
+ if (unicode == NULL) {
+ PyErr_BadInternalCall();
+ return -1;
+ }
+ v = *unicode;
+ if (v == NULL || !PyUnicode_Check(v) || Py_REFCNT(v) != 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 = 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);
+}
+
+int PyUnicode_Resize(PyObject **unicode, Py_ssize_t length)
+{
+ return _PyUnicode_Resize((PyUnicodeObject **)unicode, 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)
+ _Py_RETURN_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;
+}
+
+PyObject *PyUnicode_FromStringAndSize(const char *u, Py_ssize_t size)
+{
+ PyUnicodeObject *unicode;
+
+ if (size < 0) {
+ PyErr_SetString(PyExc_SystemError,
+ "Negative size passed to PyUnicode_FromStringAndSize");
+ return NULL;
+ }
+
+ /* If the Unicode data is known at construction time, we can apply
+ some optimizations which share commonly used objects.
+ Also, this means the input must be UTF-8, so fall back to the
+ UTF-8 decoder at the end. */
+ if (u != NULL) {
+
+ /* Optimization for empty strings */
+ if (size == 0)
+ _Py_RETURN_UNICODE_EMPTY();
+
+ /* Single characters are shared when using this constructor.
+ Restrict to ASCII, since the input must be UTF-8. */
+ if (size == 1 && Py_CHARMASK(*u) < 128) {
+ unicode = unicode_latin1[Py_CHARMASK(*u)];
+ if (!unicode) {
+ unicode = _PyUnicode_New(1);
+ if (!unicode)
+ return NULL;
+ unicode->str[0] = Py_CHARMASK(*u);
+ unicode_latin1[Py_CHARMASK(*u)] = unicode;
+ }
+ Py_INCREF(unicode);
+ return (PyObject *)unicode;
+ }
+
+ return PyUnicode_DecodeUTF8(u, size, NULL);
+ }
+
+ unicode = _PyUnicode_New(size);
+ if (!unicode)
+ return NULL;
+
+ return (PyObject *)unicode;
+}
+
+PyObject *PyUnicode_FromString(const char *u)
+{
+ size_t size = strlen(u);
+ if (size > PY_SSIZE_T_MAX) {
+ PyErr_SetString(PyExc_OverflowError, "input too long");
+ return NULL;
+ }
+
+ return PyUnicode_FromStringAndSize(u, size);
+}
+
+/* _Py_UNICODE_NEXT is a private macro used to retrieve the character pointed
+ * by 'ptr', possibly combining surrogate pairs on narrow builds.
+ * 'ptr' and 'end' must be Py_UNICODE*, with 'ptr' pointing at the character
+ * that should be returned and 'end' pointing to the end of the buffer.
+ * ('end' is used on narrow builds to detect a lone surrogate at the
+ * end of the buffer that should be returned unchanged.)
+ * The ptr and end arguments should be side-effect free and ptr must an lvalue.
+ * The type of the returned char is always Py_UCS4.
+ *
+ * Note: the macro advances ptr to next char, so it might have side-effects
+ * (especially if used with other macros).
+ */
+
+/* helper macros used by _Py_UNICODE_NEXT */
+#define _Py_UNICODE_IS_HIGH_SURROGATE(ch) (0xD800 <= ch && ch <= 0xDBFF)
+#define _Py_UNICODE_IS_LOW_SURROGATE(ch) (0xDC00 <= ch && ch <= 0xDFFF)
+/* Join two surrogate characters and return a single Py_UCS4 value. */
+#define _Py_UNICODE_JOIN_SURROGATES(high, low) \
+ (((((Py_UCS4)(high) & 0x03FF) << 10) | \
+ ((Py_UCS4)(low) & 0x03FF)) + 0x10000)
+
+#ifdef Py_UNICODE_WIDE
+#define _Py_UNICODE_NEXT(ptr, end) *(ptr)++
+#else
+#define _Py_UNICODE_NEXT(ptr, end) \
+ (((_Py_UNICODE_IS_HIGH_SURROGATE(*(ptr)) && (ptr) < (end)) && \
+ _Py_UNICODE_IS_LOW_SURROGATE((ptr)[1])) ? \
+ ((ptr) += 2,_Py_UNICODE_JOIN_SURROGATES((ptr)[-2], (ptr)[-1])) : \
+ (Py_UCS4)*(ptr)++)
+#endif
+
+#ifdef HAVE_WCHAR_H
+
+#if (Py_UNICODE_SIZE == 2) && defined(SIZEOF_WCHAR_T) && (SIZEOF_WCHAR_T == 4)
+# define CONVERT_WCHAR_TO_SURROGATES
+#endif
+
+#ifdef CONVERT_WCHAR_TO_SURROGATES
+
+/* Here sizeof(wchar_t) is 4 but Py_UNICODE_SIZE == 2, so we need
+ to convert from UTF32 to UTF16. */
+
+PyObject *PyUnicode_FromWideChar(register const wchar_t *w,
+ Py_ssize_t size)
+{
+ PyUnicodeObject *unicode;
+ register Py_ssize_t i;
+ Py_ssize_t alloc;
+ const wchar_t *orig_w;
+
+ if (w == NULL) {
+ PyErr_BadInternalCall();
+ return NULL;
+ }
+
+ alloc = size;
+ orig_w = w;
+ for (i = size; i > 0; i--) {
+ if (*w > 0xFFFF)
+ alloc++;
+ w++;
+ }
+ w = orig_w;
+ unicode = _PyUnicode_New(alloc);
+ if (!unicode)
+ return NULL;
+
+ /* Copy the wchar_t data into the new object */
+ {
+ register Py_UNICODE *u;
+ u = PyUnicode_AS_UNICODE(unicode);
+ for (i = size; i > 0; i--) {
+ if (*w > 0xFFFF) {
+ wchar_t ordinal = *w++;
+ ordinal -= 0x10000;
+ *u++ = 0xD800 | (ordinal >> 10);
+ *u++ = 0xDC00 | (ordinal & 0x3FF);
+ }
+ else
+ *u++ = *w++;
+ }
+ }
+ return (PyObject *)unicode;
+}
+
+#else
+
+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;
+}
+
+#endif /* CONVERT_WCHAR_TO_SURROGATES */
+
+#undef CONVERT_WCHAR_TO_SURROGATES
+
+static void
+makefmt(char *fmt, int longflag, int size_tflag, int zeropad, int width, int precision, char c)
+{
+ *fmt++ = '%';
+ if (width) {
+ if (zeropad)
+ *fmt++ = '0';
+ fmt += sprintf(fmt, "%d", width);
+ }
+ if (precision)
+ fmt += sprintf(fmt, ".%d", precision);
+ if (longflag)
+ *fmt++ = 'l';
+ else if (size_tflag) {
+ char *f = PY_FORMAT_SIZE_T;
+ while (*f)
+ *fmt++ = *f++;
+ }
+ *fmt++ = c;
+ *fmt = '\0';
+}
+
+#define appendstring(string) \
+ do { \
+ for (copy = string;*copy; copy++) { \
+ *s++ = (unsigned char)*copy; \
+ } \
+ } while (0)
+
+PyObject *
+PyUnicode_FromFormatV(const char *format, va_list vargs)
+{
+ va_list count;
+ Py_ssize_t callcount = 0;
+ PyObject **callresults = NULL;
+ PyObject **callresult = NULL;
+ Py_ssize_t n = 0;
+ int width = 0;
+ int precision = 0;
+ int zeropad;
+ const char* f;
+ Py_UNICODE *s;
+ PyObject *string;
+ /* used by sprintf */
+ char buffer[21];
+ /* use abuffer instead of buffer, if we need more space
+ * (which can happen if there's a format specifier with width). */
+ char *abuffer = NULL;
+ char *realbuffer;
+ Py_ssize_t abuffersize = 0;
+ char fmt[60]; /* should be enough for %0width.precisionld */
+ const char *copy;
+
+#ifdef VA_LIST_IS_ARRAY
+ Py_MEMCPY(count, vargs, sizeof(va_list));
+#else
+#ifdef __va_copy
+ __va_copy(count, vargs);
+#else
+ count = vargs;
+#endif
+#endif
+ /* step 1: count the number of %S/%R/%s format specifications
+ * (we call PyObject_Str()/PyObject_Repr()/PyUnicode_DecodeUTF8() for these
+ * objects once during step 3 and put the result in an array) */
+ for (f = format; *f; f++) {
+ if (*f == '%') {
+ f++;
+ while (*f && *f != '%' && !isalpha((unsigned)*f))
+ f++;
+ if (!*f)
+ break;
+ if (*f == 's' || *f=='S' || *f=='R')
+ ++callcount;
+ }
+ }
+ /* step 2: allocate memory for the results of
+ * PyObject_Str()/PyObject_Repr()/PyUnicode_DecodeUTF8() calls */
+ if (callcount) {
+ callresults = PyObject_Malloc(sizeof(PyObject *)*callcount);
+ if (!callresults) {
+ PyErr_NoMemory();
+ return NULL;
+ }
+ callresult = callresults;
+ }
+ /* step 3: figure out how large a buffer we need */
+ for (f = format; *f; f++) {
+ if (*f == '%') {
+ const char* p = f++;
+ width = 0;
+ while (isdigit((unsigned)*f))
+ width = (width*10) + *f++ - '0';
+ precision = 0;
+ if (*f == '.') {
+ f++;
+ while (isdigit((unsigned)*f))
+ precision = (precision*10) + *f++ - '0';
+ }
+
+ /* skip the 'l' or 'z' in {%ld, %zd, %lu, %zu} since
+ * they don't affect the amount of space we reserve.
+ */
+ if ((*f == 'l' || *f == 'z') &&
+ (f[1] == 'd' || f[1] == 'u'))
+ ++f;
+
+ switch (*f) {
+ case 'c':
+ {
+ int ordinal = va_arg(count, int);
+#ifdef Py_UNICODE_WIDE
+ if (ordinal < 0 || ordinal > 0x10ffff) {
+ PyErr_SetString(PyExc_OverflowError,
+ "%c arg not in range(0x110000) "
+ "(wide Python build)");
+ goto fail;
+ }
+#else
+ if (ordinal < 0 || ordinal > 0xffff) {
+ PyErr_SetString(PyExc_OverflowError,
+ "%c arg not in range(0x10000) "
+ "(narrow Python build)");
+ goto fail;
+ }
+#endif
+ /* fall through... */
+ }
+ case '%':
+ n++;
+ break;
+ case 'd': case 'u': case 'i': case 'x':
+ (void) va_arg(count, int);
+ if (width < precision)
+ width = precision;
+ /* 20 bytes is enough to hold a 64-bit
+ integer. Decimal takes the most space.
+ This isn't enough for octal.
+ If a width is specified we need more
+ (which we allocate later). */
+ if (width < 20)
+ width = 20;
+ n += width;
+ if (abuffersize < width)
+ abuffersize = width;
+ break;
+ case 's':
+ {
+ /* UTF-8 */
+ const char *s = va_arg(count, const char*);
+ PyObject *str = PyUnicode_DecodeUTF8(s, strlen(s), "replace");
+ if (!str)
+ goto fail;
+ n += PyUnicode_GET_SIZE(str);
+ /* Remember the str and switch to the next slot */
+ *callresult++ = str;
+ break;
+ }
+ case 'U':
+ {
+ PyObject *obj = va_arg(count, PyObject *);
+ assert(obj && PyUnicode_Check(obj));
+ n += PyUnicode_GET_SIZE(obj);
+ break;
+ }
+ case 'V':
+ {
+ PyObject *obj = va_arg(count, PyObject *);
+ const char *str = va_arg(count, const char *);
+ assert(obj || str);
+ assert(!obj || PyUnicode_Check(obj));
+ if (obj)
+ n += PyUnicode_GET_SIZE(obj);
+ else
+ n += strlen(str);
+ break;
+ }
+ case 'S':
+ {
+ PyObject *obj = va_arg(count, PyObject *);
+ PyObject *str;
+ assert(obj);
+ str = PyObject_Str(obj);
+ if (!str)
+ goto fail;
+ n += PyString_GET_SIZE(str);
+ /* Remember the str and switch to the next slot */
+ *callresult++ = str;
+ break;
+ }
+ case 'R':
+ {
+ PyObject *obj = va_arg(count, PyObject *);
+ PyObject *repr;
+ assert(obj);
+ repr = PyObject_Repr(obj);
+ if (!repr)
+ goto fail;
+ n += PyUnicode_GET_SIZE(repr);
+ /* Remember the repr and switch to the next slot */
+ *callresult++ = repr;
+ break;
+ }
+ case 'p':
+ (void) va_arg(count, int);
+ /* maximum 64-bit pointer representation:
+ * 0xffffffffffffffff
+ * so 19 characters is enough.
+ * XXX I count 18 -- what's the extra for?
+ */
+ n += 19;
+ break;
+ default:
+ /* if we stumble upon an unknown
+ formatting code, copy the rest of
+ the format string to the output
+ string. (we cannot just skip the
+ code, since there's no way to know
+ what's in the argument list) */
+ n += strlen(p);
+ goto expand;
+ }
+ } else
+ n++;
+ }
+ expand:
+ if (abuffersize > 20) {
+ /* add 1 for sprintf's trailing null byte */
+ abuffer = PyObject_Malloc(abuffersize + 1);
+ if (!abuffer) {
+ PyErr_NoMemory();
+ goto fail;
+ }
+ realbuffer = abuffer;
+ }
+ else
+ realbuffer = buffer;
+ /* step 4: fill the buffer */
+ /* Since we've analyzed how much space we need for the worst case,
+ we don't have to resize the string.
+ There can be no errors beyond this point. */
+ string = PyUnicode_FromUnicode(NULL, n);
+ if (!string)
+ goto fail;
+
+ s = PyUnicode_AS_UNICODE(string);
+ callresult = callresults;
+
+ for (f = format; *f; f++) {
+ if (*f == '%') {
+ const char* p = f++;
+ int longflag = 0;
+ int size_tflag = 0;
+ zeropad = (*f == '0');
+ /* parse the width.precision part */
+ width = 0;
+ while (isdigit((unsigned)*f))
+ width = (width*10) + *f++ - '0';
+ precision = 0;
+ if (*f == '.') {
+ f++;
+ while (isdigit((unsigned)*f))
+ precision = (precision*10) + *f++ - '0';
+ }
+ /* handle the long flag, but only for %ld and %lu.
+ others can be added when necessary. */
+ if (*f == 'l' && (f[1] == 'd' || f[1] == 'u')) {
+ longflag = 1;
+ ++f;
+ }
+ /* handle the size_t flag. */
+ if (*f == 'z' && (f[1] == 'd' || f[1] == 'u')) {
+ size_tflag = 1;
+ ++f;
+ }
+
+ switch (*f) {
+ case 'c':
+ *s++ = va_arg(vargs, int);
+ break;
+ case 'd':
+ makefmt(fmt, longflag, size_tflag, zeropad, width, precision, 'd');
+ if (longflag)
+ sprintf(realbuffer, fmt, va_arg(vargs, long));
+ else if (size_tflag)
+ sprintf(realbuffer, fmt, va_arg(vargs, Py_ssize_t));
+ else
+ sprintf(realbuffer, fmt, va_arg(vargs, int));
+ appendstring(realbuffer);
+ break;
+ case 'u':
+ makefmt(fmt, longflag, size_tflag, zeropad, width, precision, 'u');
+ if (longflag)
+ sprintf(realbuffer, fmt, va_arg(vargs, unsigned long));
+ else if (size_tflag)
+ sprintf(realbuffer, fmt, va_arg(vargs, size_t));
+ else
+ sprintf(realbuffer, fmt, va_arg(vargs, unsigned int));
+ appendstring(realbuffer);
+ break;
+ case 'i':
+ makefmt(fmt, 0, 0, zeropad, width, precision, 'i');
+ sprintf(realbuffer, fmt, va_arg(vargs, int));
+ appendstring(realbuffer);
+ break;
+ case 'x':
+ makefmt(fmt, 0, 0, zeropad, width, precision, 'x');
+ sprintf(realbuffer, fmt, va_arg(vargs, int));
+ appendstring(realbuffer);
+ break;
+ case 's':
+ {
+ /* unused, since we already have the result */
+ (void) va_arg(vargs, char *);
+ Py_UNICODE_COPY(s, PyUnicode_AS_UNICODE(*callresult),
+ PyUnicode_GET_SIZE(*callresult));
+ s += PyUnicode_GET_SIZE(*callresult);
+ /* We're done with the unicode()/repr() => forget it */
+ Py_DECREF(*callresult);
+ /* switch to next unicode()/repr() result */
+ ++callresult;
+ break;
+ }
+ case 'U':
+ {
+ PyObject *obj = va_arg(vargs, PyObject *);
+ Py_ssize_t size = PyUnicode_GET_SIZE(obj);
+ Py_UNICODE_COPY(s, PyUnicode_AS_UNICODE(obj), size);
+ s += size;
+ break;
+ }
+ case 'V':
+ {
+ PyObject *obj = va_arg(vargs, PyObject *);
+ const char *str = va_arg(vargs, const char *);
+ if (obj) {
+ Py_ssize_t size = PyUnicode_GET_SIZE(obj);
+ Py_UNICODE_COPY(s, PyUnicode_AS_UNICODE(obj), size);
+ s += size;
+ } else {
+ appendstring(str);
+ }
+ break;
+ }
+ case 'S':
+ case 'R':
+ {
+ const char *str = PyString_AS_STRING(*callresult);
+ /* unused, since we already have the result */
+ (void) va_arg(vargs, PyObject *);
+ appendstring(str);
+ /* We're done with the unicode()/repr() => forget it */
+ Py_DECREF(*callresult);
+ /* switch to next unicode()/repr() result */
+ ++callresult;
+ break;
+ }
+ case 'p':
+ sprintf(buffer, "%p", va_arg(vargs, void*));
+ /* %p is ill-defined: ensure leading 0x. */
+ if (buffer[1] == 'X')
+ buffer[1] = 'x';
+ else if (buffer[1] != 'x') {
+ memmove(buffer+2, buffer, strlen(buffer)+1);
+ buffer[0] = '0';
+ buffer[1] = 'x';
+ }
+ appendstring(buffer);
+ break;
+ case '%':
+ *s++ = '%';
+ break;
+ default:
+ appendstring(p);
+ goto end;
+ }
+ } else
+ *s++ = *f;
+ }
+
+ end:
+ if (callresults)
+ PyObject_Free(callresults);
+ if (abuffer)
+ PyObject_Free(abuffer);
+ PyUnicode_Resize(&string, s - PyUnicode_AS_UNICODE(string));
+ return string;
+ fail:
+ if (callresults) {
+ PyObject **callresult2 = callresults;
+ while (callresult2 < callresult) {
+ Py_DECREF(*callresult2);
+ ++callresult2;
+ }
+ PyObject_Free(callresults);
+ }
+ if (abuffer)
+ PyObject_Free(abuffer);
+ return NULL;
+}
+
+#undef appendstring
+
+PyObject *
+PyUnicode_FromFormat(const char *format, ...)
+{
+ PyObject* ret;
+ va_list vargs;
+
+#ifdef HAVE_STDARG_PROTOTYPES
+ va_start(vargs, format);
+#else
+ va_start(vargs);
+#endif
+ ret = PyUnicode_FromFormatV(format, vargs);
+ va_end(vargs);
+ return ret;
+}
+
+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 (PyByteArray_Check(obj)) {
+ /* Python 2.x specific */
+ PyErr_Format(PyExc_TypeError,
+ "decoding bytearray is not supported");
+ return NULL;
+ }
+ 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",
+ Py_TYPE(obj)->tp_name);
+ goto onError;
+ }
+
+ /* Convert to Unicode */
+ if (len == 0)
+ _Py_RETURN_UNICODE_EMPTY();
+
+ 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)",
+ Py_TYPE(unicode)->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)",
+ Py_TYPE(v)->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) - 1);
+ 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,
+ PyUnicodeObject **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_SetString(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;
+ if (requiredsize > PY_SSIZE_T_MAX - repsize)
+ goto overflow;
+ requiredsize += repsize;
+ if (requiredsize > PY_SSIZE_T_MAX - (insize - newpos))
+ goto overflow;
+ requiredsize += insize - newpos;
+ if (requiredsize > outsize) {
+ if (outsize <= PY_SSIZE_T_MAX/2 && 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;
+
+ overflow:
+ PyErr_SetString(PyExc_OverflowError,
+ "decoded result is too long for a Python string");
+ goto onError;
+}
+
+/* --- UTF-7 Codec -------------------------------------------------------- */
+
+/* See RFC2152 for details. We encode conservatively and decode liberally. */
+
+/* Three simple macros defining base-64. */
+
+/* Is c a base-64 character? */
+
+#define IS_BASE64(c) \
+ (isalnum(c) || (c) == '+' || (c) == '/')
+
+/* given that c is a base-64 character, what is its base-64 value? */
+
+#define FROM_BASE64(c) \
+ (((c) >= 'A' && (c) <= 'Z') ? (c) - 'A' : \
+ ((c) >= 'a' && (c) <= 'z') ? (c) - 'a' + 26 : \
+ ((c) >= '0' && (c) <= '9') ? (c) - '0' + 52 : \
+ (c) == '+' ? 62 : 63)
+
+/* What is the base-64 character of the bottom 6 bits of n? */
+
+#define TO_BASE64(n) \
+ ("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"[(n) & 0x3f])
+
+/* DECODE_DIRECT: this byte encountered in a UTF-7 string should be
+ * decoded as itself. We are permissive on decoding; the only ASCII
+ * byte not decoding to itself is the + which begins a base64
+ * string. */
+
+#define DECODE_DIRECT(c) \
+ ((c) <= 127 && (c) != '+')
+
+/* The UTF-7 encoder treats ASCII characters differently according to
+ * whether they are Set D, Set O, Whitespace, or special (i.e. none of
+ * the above). See RFC2152. This array identifies these different
+ * sets:
+ * 0 : "Set D"
+ * alphanumeric and '(),-./:?
+ * 1 : "Set O"
+ * !"#$%&*;<=>@[]^_`{|}
+ * 2 : "whitespace"
+ * ht nl cr sp
+ * 3 : special (must be base64 encoded)
+ * everything else (i.e. +\~ and non-printing codes 0-8 11-12 14-31 127)
+ */
+
+static
+char utf7_category[128] = {
+/* nul soh stx etx eot enq ack bel bs ht nl vt np cr so si */
+ 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 3, 3, 2, 3, 3,
+/* dle dc1 dc2 dc3 dc4 nak syn etb can em sub esc fs gs rs us */
+ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
+/* sp ! " # $ % & ' ( ) * + , - . / */
+ 2, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 3, 0, 0, 0, 0,
+/* 0 1 2 3 4 5 6 7 8 9 : ; < = > ? */
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 0,
+/* @ A B C D E F G H I J K L M N O */
+ 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+/* P Q R S T U V W X Y Z [ \ ] ^ _ */
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 3, 1, 1, 1,
+/* ` a b c d e f g h i j k l m n o */
+ 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+/* p q r s t u v w x y z { | } ~ del */
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 3, 3,
+};
+
+/* ENCODE_DIRECT: this character should be encoded as itself. The
+ * answer depends on whether we are encoding set O as itself, and also
+ * on whether we are encoding whitespace as itself. RFC2152 makes it
+ * clear that the answers to these questions vary between
+ * applications, so this code needs to be flexible. */
+
+#define ENCODE_DIRECT(c, directO, directWS) \
+ ((c) < 128 && (c) > 0 && \
+ ((utf7_category[(c)] == 0) || \
+ (directWS && (utf7_category[(c)] == 2)) || \
+ (directO && (utf7_category[(c)] == 1))))
+
+PyObject *PyUnicode_DecodeUTF7(const char *s,
+ Py_ssize_t size,
+ const char *errors)
+{
+ return PyUnicode_DecodeUTF7Stateful(s, size, errors, NULL);
+}
+
+/* The decoder. The only state we preserve is our read position,
+ * i.e. how many characters we have consumed. So if we end in the
+ * middle of a shift sequence we have to back off the read position
+ * and the output to the beginning of the sequence, otherwise we lose
+ * all the shift state (seen bits, number of bits seen, high
+ * surrogate). */
+
+PyObject *PyUnicode_DecodeUTF7Stateful(const char *s,
+ Py_ssize_t size,
+ const char *errors,
+ Py_ssize_t *consumed)
+{
+ 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;
+ Py_UNICODE *shiftOutStart;
+ unsigned int base64bits = 0;
+ unsigned long base64buffer = 0;
+ Py_UNICODE surrogate = 0;
+ PyObject *errorHandler = NULL;
+ PyObject *exc = NULL;
+
+ unicode = _PyUnicode_New(size);
+ if (!unicode)
+ return NULL;
+ if (size == 0) {
+ if (consumed)
+ *consumed = 0;
+ return (PyObject *)unicode;
+ }
+
+ p = unicode->str;
+ shiftOutStart = p;
+ e = s + size;
+
+ while (s < e) {
+ Py_UNICODE ch = (unsigned char) *s;
+
+ if (inShift) { /* in a base-64 section */
+ if (IS_BASE64(ch)) { /* consume a base-64 character */
+ base64buffer = (base64buffer << 6) | FROM_BASE64(ch);
+ base64bits += 6;
+ s++;
+ if (base64bits >= 16) {
+ /* we have enough bits for a UTF-16 value */
+ Py_UNICODE outCh = (Py_UNICODE)
+ (base64buffer >> (base64bits-16));
+ base64bits -= 16;
+ base64buffer &= (1 << base64bits) - 1; /* clear high bits */
+ assert(outCh <= 0xffff);
+ if (surrogate) {
+ /* expecting a second surrogate */
+ if (outCh >= 0xDC00 && outCh <= 0xDFFF) {
+#ifdef Py_UNICODE_WIDE
+ *p++ = (((surrogate & 0x3FF)<<10)
+ | (outCh & 0x3FF)) + 0x10000;
+#else
+ *p++ = surrogate;
+ *p++ = outCh;
+#endif
+ surrogate = 0;
+ continue;
+ }
+ else {
+ *p++ = surrogate;
+ surrogate = 0;
+ }
+ }
+ if (outCh >= 0xD800 && outCh <= 0xDBFF) {
+ /* first surrogate */
+ surrogate = outCh;
+ }
+ else {
+ *p++ = outCh;
+ }
+ }
+ }
+ else { /* now leaving a base-64 section */
+ inShift = 0;
+ s++;
+ if (surrogate) {
+ *p++ = surrogate;
+ surrogate = 0;
+ }
+ if (base64bits > 0) { /* left-over bits */
+ if (base64bits >= 6) {
+ /* We've seen at least one base-64 character */
+ errmsg = "partial character in shift sequence";
+ goto utf7Error;
+ }
+ else {
+ /* Some bits remain; they should be zero */
+ if (base64buffer != 0) {
+ errmsg = "non-zero padding bits in shift sequence";
+ goto utf7Error;
+ }
+ }
+ }
+ if (ch != '-') {
+ /* '-' is absorbed; other terminating
+ characters are preserved */
+ *p++ = ch;
+ }
+ }
+ }
+ else if ( ch == '+' ) {
+ startinpos = s-starts;
+ s++; /* consume '+' */
+ if (s < e && *s == '-') { /* '+-' encodes '+' */
+ s++;
+ *p++ = '+';
+ }
+ else { /* begin base64-encoded section */
+ inShift = 1;
+ shiftOutStart = p;
+ base64bits = 0;
+ base64buffer = 0;
+ }
+ }
+ else if (DECODE_DIRECT(ch)) { /* character decodes as itself */
+ *p++ = ch;
+ s++;
+ }
+ else {
+ startinpos = s-starts;
+ s++;
+ errmsg = "unexpected special character";
+ goto utf7Error;
+ }
+ 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,
+ &unicode, &outpos, &p))
+ goto onError;
+ }
+
+ /* end of string */
+
+ if (inShift && !consumed) { /* in shift sequence, no more to follow */
+ /* if we're in an inconsistent state, that's an error */
+ if (surrogate ||
+ (base64bits >= 6) ||
+ (base64bits > 0 && base64buffer != 0)) {
+ 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,
+ &unicode, &outpos, &p))
+ goto onError;
+ }
+ }
+
+ /* return state */
+ if (consumed) {
+ if (inShift) {
+ p = shiftOutStart; /* back off output */
+ *consumed = startinpos;
+ }
+ else {
+ *consumed = s-starts;
+ }
+ }
+
+ 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 base64SetO,
+ int base64WhiteSpace,
+ const char *errors)
+{
+ PyObject *v;
+ /* It might be possible to tighten this worst case */
+ Py_ssize_t allocated = 8 * size;
+ int inShift = 0;
+ Py_ssize_t i = 0;
+ unsigned int base64bits = 0;
+ unsigned long base64buffer = 0;
+ char * out;
+ char * start;
+
+ if (allocated / 8 != size)
+ return PyErr_NoMemory();
+
+ if (size == 0)
+ return PyString_FromStringAndSize(NULL, 0);
+
+ v = PyString_FromStringAndSize(NULL, allocated);
+ if (v == NULL)
+ return NULL;
+
+ start = out = PyString_AS_STRING(v);
+ for (;i < size; ++i) {
+ Py_UNICODE ch = s[i];
+
+ if (inShift) {
+ if (ENCODE_DIRECT(ch, !base64SetO, !base64WhiteSpace)) {
+ /* shifting out */
+ if (base64bits) { /* output remaining bits */
+ *out++ = TO_BASE64(base64buffer << (6-base64bits));
+ base64buffer = 0;
+ base64bits = 0;
+ }
+ inShift = 0;
+ /* Characters not in the BASE64 set implicitly unshift the sequence
+ so no '-' is required, except if the character is itself a '-' */
+ if (IS_BASE64(ch) || ch == '-') {
+ *out++ = '-';
+ }
+ *out++ = (char) ch;
+ }
+ else {
+ goto encode_char;
+ }
+ }
+ else { /* not in a shift sequence */
+ if (ch == '+') {
+ *out++ = '+';
+ *out++ = '-';
+ }
+ else if (ENCODE_DIRECT(ch, !base64SetO, !base64WhiteSpace)) {
+ *out++ = (char) ch;
+ }
+ else {
+ *out++ = '+';
+ inShift = 1;
+ goto encode_char;
+ }
+ }
+ continue;
+encode_char:
+#ifdef Py_UNICODE_WIDE
+ if (ch >= 0x10000) {
+ /* code first surrogate */
+ base64bits += 16;
+ base64buffer = (base64buffer << 16) | 0xd800 | ((ch-0x10000) >> 10);
+ while (base64bits >= 6) {
+ *out++ = TO_BASE64(base64buffer >> (base64bits-6));
+ base64bits -= 6;
+ }
+ /* prepare second surrogate */
+ ch = 0xDC00 | ((ch-0x10000) & 0x3FF);
+ }
+#endif
+ base64bits += 16;
+ base64buffer = (base64buffer << 16) | ch;
+ while (base64bits >= 6) {
+ *out++ = TO_BASE64(base64buffer >> (base64bits-6));
+ base64bits -= 6;
+ }
+ }
+ if (base64bits)
+ *out++= TO_BASE64(base64buffer << (6-base64bits) );
+ if (inShift)
+ *out++ = '-';
+
+ if (_PyString_Resize(&v, out - start))
+ return NULL;
+ return v;
+}
+
+#undef IS_BASE64
+#undef FROM_BASE64
+#undef TO_BASE64
+#undef DECODE_DIRECT
+#undef ENCODE_DIRECT
+
+/* --- UTF-8 Codec -------------------------------------------------------- */
+
+static
+char utf8_code_length[256] = {
+ /* Map UTF-8 encoded prefix byte to sequence length. Zero means
+ illegal prefix. See RFC 3629 for details */
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 00-0F */
+ 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, /* 70-7F */
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 80-8F */
+ 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, /* B0-BF */
+ 0, 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /* C0-C1 + C2-CF */
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /* D0-DF */
+ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /* E0-EF */
+ 4, 4, 4, 4, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 /* F0-F4 + F5-FF */
+};
+
+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;
+ int k;
+ 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 = startinpos+1;
+ for (k=1; (k < size-startinpos) && ((s[k]&0xC0) == 0x80); k++)
+ endinpos++;
+ goto utf8Error;
+ }
+ }
+
+ switch (n) {
+
+ case 0:
+ errmsg = "invalid start 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 continuation byte";
+ startinpos = s-starts;
+ endinpos = startinpos + 1;
+ goto utf8Error;
+ }
+ ch = ((s[0] & 0x1f) << 6) + (s[1] & 0x3f);
+ assert ((ch > 0x007F) && (ch <= 0x07FF));
+ *p++ = (Py_UNICODE)ch;
+ break;
+
+ case 3:
+ /* XXX: surrogates shouldn't be valid UTF-8!
+ see http://www.unicode.org/versions/Unicode5.2.0/ch03.pdf
+ (table 3-7) and http://www.rfc-editor.org/rfc/rfc3629.txt
+ Uncomment the 2 lines below to make them invalid,
+ code points: d800-dfff; UTF-8: \xed\xa0\x80-\xed\xbf\xbf. */
+ if ((s[1] & 0xc0) != 0x80 ||
+ (s[2] & 0xc0) != 0x80 ||
+ ((unsigned char)s[0] == 0xE0 &&
+ (unsigned char)s[1] < 0xA0)/* ||
+ ((unsigned char)s[0] == 0xED &&
+ (unsigned char)s[1] > 0x9F)*/) {
+ errmsg = "invalid continuation byte";
+ startinpos = s-starts;
+ endinpos = startinpos + 1;
+
+ /* if s[1] first two bits are 1 and 0, then the invalid
+ continuation byte is s[2], so increment endinpos by 1,
+ if not, s[1] is invalid and endinpos doesn't need to
+ be incremented. */
+ if ((s[1] & 0xC0) == 0x80)
+ endinpos++;
+ goto utf8Error;
+ }
+ ch = ((s[0] & 0x0f) << 12) + ((s[1] & 0x3f) << 6) + (s[2] & 0x3f);
+ assert ((ch > 0x07FF) && (ch <= 0xFFFF));
+ *p++ = (Py_UNICODE)ch;
+ break;
+
+ case 4:
+ if ((s[1] & 0xc0) != 0x80 ||
+ (s[2] & 0xc0) != 0x80 ||
+ (s[3] & 0xc0) != 0x80 ||
+ ((unsigned char)s[0] == 0xF0 &&
+ (unsigned char)s[1] < 0x90) ||
+ ((unsigned char)s[0] == 0xF4 &&
+ (unsigned char)s[1] > 0x8F)) {
+ errmsg = "invalid continuation byte";
+ startinpos = s-starts;
+ endinpos = startinpos + 1;
+ if ((s[1] & 0xC0) == 0x80) {
+ endinpos++;
+ if ((s[2] & 0xC0) == 0x80)
+ endinpos++;
+ }
+ goto utf8Error;
+ }
+ ch = ((s[0] & 0x7) << 18) + ((s[1] & 0x3f) << 12) +
+ ((s[2] & 0x3f) << 6) + (s[3] & 0x3f);
+ assert ((ch > 0xFFFF) && (ch <= 0x10ffff));
+
+#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;
+ }
+ 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,
+ &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);
+ if (_PyString_Resize(&v, nneeded))
+ return NULL;
+ }
+ 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-32 Codec ------------------------------------------------------- */
+
+PyObject *
+PyUnicode_DecodeUTF32(const char *s,
+ Py_ssize_t size,
+ const char *errors,
+ int *byteorder)
+{
+ return PyUnicode_DecodeUTF32Stateful(s, size, errors, byteorder, NULL);
+}
+
+PyObject *
+PyUnicode_DecodeUTF32Stateful(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;
+#ifndef Py_UNICODE_WIDE
+ int pairs = 0;
+ const unsigned char *qq;
+#else
+ const int pairs = 0;
+#endif
+ const unsigned char *q, *e;
+ int bo = 0; /* assume native ordering by default */
+ const char *errmsg = "";
+ /* Offsets from q for retrieving bytes in the right order. */
+#ifdef BYTEORDER_IS_LITTLE_ENDIAN
+ int iorder[] = {0, 1, 2, 3};
+#else
+ int iorder[] = {3, 2, 1, 0};
+#endif
+ PyObject *errorHandler = NULL;
+ PyObject *exc = NULL;
+
+ 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 >= 4) {
+ const Py_UCS4 bom = (q[iorder[3]] << 24) | (q[iorder[2]] << 16) |
+ (q[iorder[1]] << 8) | q[iorder[0]];
+#ifdef BYTEORDER_IS_LITTLE_ENDIAN
+ if (bom == 0x0000FEFF) {
+ q += 4;
+ bo = -1;
+ }
+ else if (bom == 0xFFFE0000) {
+ q += 4;
+ bo = 1;
+ }
+#else
+ if (bom == 0x0000FEFF) {
+ q += 4;
+ bo = 1;
+ }
+ else if (bom == 0xFFFE0000) {
+ q += 4;
+ bo = -1;
+ }
+#endif
+ }
+ }
+
+ if (bo == -1) {
+ /* force LE */
+ iorder[0] = 0;
+ iorder[1] = 1;
+ iorder[2] = 2;
+ iorder[3] = 3;
+ }
+ else if (bo == 1) {
+ /* force BE */
+ iorder[0] = 3;
+ iorder[1] = 2;
+ iorder[2] = 1;
+ iorder[3] = 0;
+ }
+
+ /* On narrow builds we split characters outside the BMP into two
+ code points => count how much extra space we need. */
+#ifndef Py_UNICODE_WIDE
+ for (qq = q; e - qq >= 4; qq += 4)
+ if (qq[iorder[2]] != 0 || qq[iorder[3]] != 0)
+ pairs++;
+#endif
+
+ /* This might be one to much, because of a BOM */
+ unicode = _PyUnicode_New((size+3)/4+pairs);
+ if (!unicode)
+ return NULL;
+ if (size == 0)
+ return (PyObject *)unicode;
+
+ /* Unpack UTF-32 encoded data */
+ p = unicode->str;
+
+ while (q < e) {
+ Py_UCS4 ch;
+ /* remaining bytes at the end? (size should be divisible by 4) */
+ if (e-q<4) {
+ if (consumed)
+ break;
+ errmsg = "truncated data";
+ startinpos = ((const char *)q)-starts;
+ endinpos = ((const char *)e)-starts;
+ goto utf32Error;
+ /* The remaining input chars are ignored if the callback
+ chooses to skip the input */
+ }
+ ch = (q[iorder[3]] << 24) | (q[iorder[2]] << 16) |
+ (q[iorder[1]] << 8) | q[iorder[0]];
+
+ if (ch >= 0x110000)
+ {
+ errmsg = "code point not in range(0x110000)";
+ startinpos = ((const char *)q)-starts;
+ endinpos = startinpos+4;
+ goto utf32Error;
+ }
+#ifndef Py_UNICODE_WIDE
+ if (ch >= 0x10000)
+ {
+ *p++ = 0xD800 | ((ch-0x10000) >> 10);
+ *p++ = 0xDC00 | ((ch-0x10000) & 0x3FF);
+ }
+ else
+#endif
+ *p++ = ch;
+ q += 4;
+ continue;
+ utf32Error:
+ outpos = p-PyUnicode_AS_UNICODE(unicode);
+ if (unicode_decode_call_errorhandler(
+ errors, &errorHandler,
+ "utf32", errmsg,
+ starts, size, &startinpos, &endinpos, &exc, (const char **)&q,
+ &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_EncodeUTF32(const Py_UNICODE *s,
+ Py_ssize_t size,
+ const char *errors,
+ int byteorder)
+{
+ PyObject *v;
+ unsigned char *p;
+ Py_ssize_t nsize, bytesize;
+#ifndef Py_UNICODE_WIDE
+ Py_ssize_t 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 iorder[] = {0, 1, 2, 3};
+#else
+ int iorder[] = {3, 2, 1, 0};
+#endif
+
+#define STORECHAR(CH) \
+ do { \
+ p[iorder[3]] = ((CH) >> 24) & 0xff; \
+ p[iorder[2]] = ((CH) >> 16) & 0xff; \
+ p[iorder[1]] = ((CH) >> 8) & 0xff; \
+ p[iorder[0]] = (CH) & 0xff; \
+ p += 4; \
+ } while(0)
+
+ /* In narrow builds we can output surrogate pairs as one code point,
+ so we need less space. */
+#ifndef Py_UNICODE_WIDE
+ for (i = pairs = 0; i < size-1; i++)
+ if (0xD800 <= s[i] && s[i] <= 0xDBFF &&
+ 0xDC00 <= s[i+1] && s[i+1] <= 0xDFFF)
+ pairs++;
+#endif
+ nsize = (size - pairs + (byteorder == 0));
+ bytesize = nsize * 4;
+ if (bytesize / 4 != nsize)
+ return PyErr_NoMemory();
+ v = PyString_FromStringAndSize(NULL, bytesize);
+ 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 */
+ iorder[0] = 0;
+ iorder[1] = 1;
+ iorder[2] = 2;
+ iorder[3] = 3;
+ }
+ else if (byteorder == 1) {
+ /* force BE */
+ iorder[0] = 3;
+ iorder[1] = 2;
+ iorder[2] = 1;
+ iorder[3] = 0;
+ }
+
+ while (size-- > 0) {
+ Py_UCS4 ch = *s++;
+#ifndef Py_UNICODE_WIDE
+ if (0xD800 <= ch && ch <= 0xDBFF && size > 0) {
+ Py_UCS4 ch2 = *s;
+ if (0xDC00 <= ch2 && ch2 <= 0xDFFF) {
+ ch = (((ch & 0x3FF)<<10) | (ch2 & 0x3FF)) + 0x10000;
+ s++;
+ size--;
+ }
+ }
+#endif
+ STORECHAR(ch);
+ }
+ return v;
+#undef STORECHAR
+}
+
+PyObject *PyUnicode_AsUTF32String(PyObject *unicode)
+{
+ if (!PyUnicode_Check(unicode)) {
+ PyErr_BadArgument();
+ return NULL;
+ }
+ return PyUnicode_EncodeUTF32(PyUnicode_AS_UNICODE(unicode),
+ PyUnicode_GET_SIZE(unicode),
+ NULL,
+ 0);
+}
+
+/* --- 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 (e - q < 2) {
+ q -= 2;
+ if (consumed)
+ break;
+ errmsg = "unexpected end of data";
+ startinpos = ((const char *)q)-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,
+ &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;
+ Py_ssize_t nsize, bytesize;
+#ifdef Py_UNICODE_WIDE
+ Py_ssize_t 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
+ /* 2 * (size + pairs + (byteorder == 0)) */
+ if (size > PY_SSIZE_T_MAX ||
+ size > PY_SSIZE_T_MAX - pairs - (byteorder == 0))
+ return PyErr_NoMemory();
+ nsize = size + pairs + (byteorder == 0);
+ bytesize = nsize * 2;
+ if (bytesize / 2 != nsize)
+ return PyErr_NoMemory();
+ v = PyString_FromStringAndSize(NULL, bytesize);
+ 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;
+ 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++;
+ c = *s++;
+ if (s > end)
+ c = '\0'; /* Invalid after \ */
+ switch (c) {
+
+ /* \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 (s < end && '0' <= *s && *s <= '7') {
+ x = (x<<3) + *s++ - '0';
+ if (s < end && '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;
+ if (end - s < digits) {
+ /* count only hex digits */
+ for (; s < end; ++s) {
+ c = (unsigned char)*s;
+ if (!Py_ISXDIGIT(c))
+ goto error;
+ }
+ goto error;
+ }
+ for (; digits--; ++s) {
+ c = (unsigned char)*s;
+ if (!Py_ISXDIGIT(c))
+ goto error;
+ 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';
+ }
+ 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 {
+ message = "illegal Unicode character";
+ goto error;
+ }
+ break;
+
+ /* \N{name} */
+ case 'N':
+ message = "malformed \\N character escape";
+ if (ucnhash_CAPI == NULL) {
+ /* load the unicode data module */
+ ucnhash_CAPI = (_PyUnicode_Name_CAPI *)PyCapsule_Import(PyUnicodeData_CAPSULE_NAME, 1);
+ 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 (s - start - 1 <= INT_MAX &&
+ ucnhash_CAPI->getcode(NULL, start, (int)(s-start-1), &chr))
+ goto store;
+ }
+ }
+ goto error;
+
+ default:
+ if (s > end) {
+ message = "\\ at end of string";
+ s--;
+ goto error;
+ }
+ else {
+ *p++ = '\\';
+ *p++ = (unsigned char)s[-1];
+ }
+ break;
+ }
+ continue;
+
+ error:
+ endinpos = s-starts;
+ outpos = p-PyUnicode_AS_UNICODE(v);
+ if (unicode_decode_call_errorhandler(
+ errors, &errorHandler,
+ "unicodeescape", message,
+ starts, size, &startinpos, &endinpos, &exc, &s,
+ &v, &outpos, &p))
+ goto onError;
+ continue;
+ }
+ 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";
+#ifdef Py_UNICODE_WIDE
+ const Py_ssize_t expandsize = 10;
+#else
+ const Py_ssize_t expandsize = 6;
+#endif
+
+ /* XXX(nnorwitz): rather than over-allocating, it would be
+ better to choose a different scheme. Perhaps scan the
+ first N-chars of the string and allocate based on that size.
+ */
+ /* Initial allocation is based on the longest-possible unichr
+ escape.
+
+ In wide (UTF-32) builds '\U00xxxxxx' is 10 chars per source
+ unichr, so in this case it's the longest unichr escape. In
+ narrow (UTF-16) builds this is five chars per source unichr
+ since there are two unichrs in the surrogate pair, so in narrow
+ (UTF-16) builds it's not the longest unichr escape.
+
+ In wide or narrow builds '\uxxxx' is 6 chars per source unichr,
+ so in the narrow (UTF-16) build case it's the longest unichr
+ escape.
+ */
+
+ if (size > (PY_SSIZE_T_MAX - 2 - 1) / expandsize)
+ return PyErr_NoMemory();
+
+ repr = PyString_FromStringAndSize(NULL,
+ 2
+ + expandsize*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) {
+ *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;
+ }
+#else
+ /* Map UTF-16 surrogate pairs to '\U00xxxxxx' */
+ 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++;
+ }
+#endif
+
+ /* 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';
+ if (_PyString_Resize(&repr, p - PyString_AS_STRING(repr)))
+ return NULL;
+ 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,
+ &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';
+ }
+ if (x <= 0xffff)
+ /* UCS-2 character */
+ *p++ = (Py_UNICODE) x;
+ else if (x <= 0x10ffff) {
+ /* UCS-4 character. Either store directly, or as
+ surrogate pair. */
+#ifdef Py_UNICODE_WIDE
+ *p++ = (Py_UNICODE) x;
+#else
+ x -= 0x10000L;
+ *p++ = 0xD800 + (Py_UNICODE) (x >> 10);
+ *p++ = 0xDC00 + (Py_UNICODE) (x & 0x03FF);
+#endif
+ } else {
+ endinpos = s-starts;
+ outpos = p-PyUnicode_AS_UNICODE(v);
+ if (unicode_decode_call_errorhandler(
+ errors, &errorHandler,
+ "rawunicodeescape", "\\Uxxxxxxxx out of range",
+ starts, size, &startinpos, &endinpos, &exc, &s,
+ &v, &outpos, &p))
+ goto onError;
+ }
+ 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
+ const Py_ssize_t expandsize = 10;
+#else
+ const Py_ssize_t expandsize = 6;
+#endif
+
+ if (size > PY_SSIZE_T_MAX / expandsize)
+ return PyErr_NoMemory();
+
+ repr = PyString_FromStringAndSize(NULL, expandsize * size);
+ 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
+#else
+ /* Map UTF-16 surrogate pairs to '\U00xxxxxx' */
+ 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) & 0xf];
+ *p++ = hexdigit[(ucs >> 24) & 0xf];
+ *p++ = hexdigit[(ucs >> 20) & 0xf];
+ *p++ = hexdigit[(ucs >> 16) & 0xf];
+ *p++ = hexdigit[(ucs >> 12) & 0xf];
+ *p++ = hexdigit[(ucs >> 8) & 0xf];
+ *p++ = hexdigit[(ucs >> 4) & 0xf];
+ *p++ = hexdigit[ucs & 0xf];
+ continue;
+ }
+ /* Fall through: isolated surrogates are copied as-is */
+ s--;
+ size++;
+ }
+#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';
+ if (_PyString_Resize(&repr, p - q))
+ return NULL;
+ 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
+
+ /* XXX overflow detection missing */
+ 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) {
+ if (end-s < Py_UNICODE_SIZE) {
+ endinpos = end-starts;
+ reason = "truncated input";
+ goto error;
+ }
+ memcpy(p, s, sizeof(Py_UNICODE));
+#ifdef Py_UNICODE_WIDE
+ /* We have to sanity check the raw data, otherwise doom looms for
+ some malformed UCS-4 data. */
+ if (*p > unimax || *p < 0) {
+ endinpos = s - starts + Py_UNICODE_SIZE;
+ reason = "illegal code point (> 0x10FFFF)";
+ goto error;
+ }
+#endif
+ p++;
+ s += Py_UNICODE_SIZE;
+ continue;
+
+ error:
+ startinpos = s - starts;
+ outpos = p - PyUnicode_AS_UNICODE(v);
+ if (unicode_decode_call_errorhandler(
+ errors, &errorHandler,
+ "unicode_internal", reason,
+ starts, size, &startinpos, &endinpos, &exc, &s,
+ &v, &outpos, &p)) {
+ goto onError;
+ }
+ }
+
+ 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_CLEAR(*exceptionObject);
+ }
+}
+
+/* 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_SetString(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) */
+ requiredsize = respos;
+ for (p = collstart; p < collend;) {
+ Py_UCS4 ch = _Py_UNICODE_NEXT(p, collend);
+ Py_ssize_t incr;
+ if (ch < 10)
+ incr = 2+1+1;
+ else if (ch < 100)
+ incr = 2+2+1;
+ else if (ch < 1000)
+ incr = 2+3+1;
+ else if (ch < 10000)
+ incr = 2+4+1;
+ else if (ch < 100000)
+ incr = 2+5+1;
+ else if (ch < 1000000)
+ incr = 2+6+1;
+ else
+ incr = 2+7+1;
+ if (requiredsize > PY_SSIZE_T_MAX - incr)
+ goto overflow;
+ requiredsize += incr;
+ }
+ if (requiredsize > PY_SSIZE_T_MAX - (endp - collend))
+ goto overflow;
+ requiredsize += endp - collend;
+ if (requiredsize > ressize) {
+ if (ressize <= PY_SSIZE_T_MAX/2 && 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;) {
+ Py_UCS4 ch = _Py_UNICODE_NEXT(p, collend);
+ str += sprintf(str, "&#%d;", (int)ch);
+ }
+ 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);
+ if (respos > PY_SSIZE_T_MAX - repsize)
+ goto overflow;
+ requiredsize = respos + repsize;
+ if (requiredsize > PY_SSIZE_T_MAX - (endp - collend))
+ goto overflow;
+ requiredsize += endp - collend;
+ if (requiredsize > ressize) {
+ if (ressize <= PY_SSIZE_T_MAX/2 && 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;
+
+ overflow:
+ PyErr_SetString(PyExc_OverflowError,
+ "encoded result is too long for a Python string");
+
+ 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,
+ &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 -------------------------------------------- */
+
+#if SIZEOF_INT < SIZEOF_SIZE_T
+#define NEED_RETRY
+#endif
+
+/* XXX This code is limited to "true" double-byte encodings, as
+ a) it assumes an incomplete character consists of a single byte, and
+ b) IsDBCSLeadByte (probably) does not work for non-DBCS multi-byte
+ encodings, see IsDBCSLeadByteEx documentation. */
+
+static int is_dbcs_lead_byte(const char *s, int offset)
+{
+ const char *curr = s + offset;
+
+ if (IsDBCSLeadByte(*curr)) {
+ const char *prev = CharPrev(s, curr);
+ return (prev == curr) || !IsDBCSLeadByte(*prev) || (curr - prev == 2);
+ }
+ return 0;
+}
+
+/*
+ * Decode MBCS string into unicode object. If 'final' is set, converts
+ * trailing lead-byte too. Returns consumed size if succeed, -1 otherwise.
+ */
+static int decode_mbcs(PyUnicodeObject **v,
+ const char *s, /* MBCS string */
+ int size, /* sizeof MBCS string */
+ int final)
+{
+ Py_UNICODE *p;
+ Py_ssize_t n = 0;
+ int usize = 0;
+
+ assert(size >= 0);
+
+ /* Skip trailing lead-byte unless 'final' is set */
+ if (!final && size >= 1 && is_dbcs_lead_byte(s, size - 1))
+ --size;
+
+ /* First get the size of the result */
+ if (size > 0) {
+ usize = MultiByteToWideChar(CP_ACP, 0, s, size, NULL, 0);
+ if (usize == 0) {
+ PyErr_SetFromWindowsErrWithFilename(0, NULL);
+ return -1;
+ }
+ }
+
+ if (*v == NULL) {
+ /* Create unicode object */
+ *v = _PyUnicode_New(usize);
+ if (*v == NULL)
+ return -1;
+ }
+ else {
+ /* Extend unicode object */
+ n = PyUnicode_GET_SIZE(*v);
+ if (_PyUnicode_Resize(v, n + usize) < 0)
+ return -1;
+ }
+
+ /* Do the conversion */
+ if (size > 0) {
+ p = PyUnicode_AS_UNICODE(*v) + n;
+ if (0 == MultiByteToWideChar(CP_ACP, 0, s, size, p, usize)) {
+ PyErr_SetFromWindowsErrWithFilename(0, NULL);
+ return -1;
+ }
+ }
+
+ return size;
+}
+
+PyObject *PyUnicode_DecodeMBCSStateful(const char *s,
+ Py_ssize_t size,
+ const char *errors,
+ Py_ssize_t *consumed)
+{
+ PyUnicodeObject *v = NULL;
+ int done;
+
+ if (consumed)
+ *consumed = 0;
+
+#ifdef NEED_RETRY
+ retry:
+ if (size > INT_MAX)
+ done = decode_mbcs(&v, s, INT_MAX, 0);
+ else
+#endif
+ done = decode_mbcs(&v, s, (int)size, !consumed);
+
+ if (done < 0) {
+ Py_XDECREF(v);
+ return NULL;
+ }
+
+ if (consumed)
+ *consumed += done;
+
+#ifdef NEED_RETRY
+ if (size > INT_MAX) {
+ s += done;
+ size -= done;
+ goto retry;
+ }
+#endif
+
+ return (PyObject *)v;
+}
+
+PyObject *PyUnicode_DecodeMBCS(const char *s,
+ Py_ssize_t size,
+ const char *errors)
+{
+ return PyUnicode_DecodeMBCSStateful(s, size, errors, NULL);
+}
+
+/*
+ * Convert unicode into string object (MBCS).
+ * Returns 0 if succeed, -1 otherwise.
+ */
+static int encode_mbcs(PyObject **repr,
+ const Py_UNICODE *p, /* unicode */
+ int size) /* size of unicode */
+{
+ int mbcssize = 0;
+ Py_ssize_t n = 0;
+
+ assert(size >= 0);
+
+ /* First get the size of the result */
+ if (size > 0) {
+ mbcssize = WideCharToMultiByte(CP_ACP, 0, p, size, NULL, 0, NULL, NULL);
+ if (mbcssize == 0) {
+ PyErr_SetFromWindowsErrWithFilename(0, NULL);
+ return -1;
+ }
+ }
+
+ if (*repr == NULL) {
+ /* Create string object */
+ *repr = PyString_FromStringAndSize(NULL, mbcssize);
+ if (*repr == NULL)
+ return -1;
+ }
+ else {
+ /* Extend string object */
+ n = PyString_Size(*repr);
+ if (_PyString_Resize(repr, n + mbcssize) < 0)
+ return -1;
+ }
+
+ /* Do the conversion */
+ if (size > 0) {
+ char *s = PyString_AS_STRING(*repr) + n;
+ if (0 == WideCharToMultiByte(CP_ACP, 0, p, size, s, mbcssize, NULL, NULL)) {
+ PyErr_SetFromWindowsErrWithFilename(0, NULL);
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
+PyObject *PyUnicode_EncodeMBCS(const Py_UNICODE *p,
+ Py_ssize_t size,
+ const char *errors)
+{
+ PyObject *repr = NULL;
+ int ret;
+
+#ifdef NEED_RETRY
+ retry:
+ if (size > INT_MAX)
+ ret = encode_mbcs(&repr, p, INT_MAX);
+ else
+#endif
+ ret = encode_mbcs(&repr, p, (int)size);
+
+ if (ret < 0) {
+ Py_XDECREF(repr);
+ return NULL;
+ }
+
+#ifdef NEED_RETRY
+ if (size > INT_MAX) {
+ p += INT_MAX;
+ size -= INT_MAX;
+ goto retry;
+ }
+#endif
+
+ 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);
+}
+
+#undef NEED_RETRY
+
+#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,
+ &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();
+ goto Undefined;
+ } else
+ goto onError;
+ }
+
+ /* Apply mapping */
+ if (x == Py_None)
+ goto Undefined;
+ if (PyInt_Check(x)) {
+ long value = PyInt_AS_LONG(x);
+ if (value == 0xFFFE)
+ goto Undefined;
+ if (value < 0 || value > 0x10FFFF) {
+ PyErr_SetString(PyExc_TypeError,
+ "character mapping must be in range(0x110000)");
+ Py_DECREF(x);
+ goto onError;
+ }
+
+#ifndef Py_UNICODE_WIDE
+ if (value > 0xFFFF) {
+ /* see the code for 1-n mapping below */
+ if (extrachars < 2) {
+ /* resize first */
+ Py_ssize_t oldpos = p - PyUnicode_AS_UNICODE(v);
+ Py_ssize_t needed = 10 - extrachars;
+ extrachars += needed;
+ /* XXX overflow detection missing */
+ if (_PyUnicode_Resize(&v,
+ PyUnicode_GET_SIZE(v) + needed) < 0) {
+ Py_DECREF(x);
+ goto onError;
+ }
+ p = PyUnicode_AS_UNICODE(v) + oldpos;
+ }
+ value -= 0x10000;
+ *p++ = 0xD800 | (value >> 10);
+ *p++ = 0xDC00 | (value & 0x3FF);
+ extrachars -= 2;
+ }
+ else
+#endif
+ *p++ = (Py_UNICODE)value;
+ }
+ else if (PyUnicode_Check(x)) {
+ Py_ssize_t targetsize = PyUnicode_GET_SIZE(x);
+
+ if (targetsize == 1) {
+ /* 1-1 mapping */
+ Py_UNICODE value = *PyUnicode_AS_UNICODE(x);
+ if (value == 0xFFFE)
+ goto Undefined;
+ *p++ = value;
+ }
+ 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;
+ /* XXX overflow detection missing */
+ 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;
+ continue;
+Undefined:
+ /* undefined mapping */
+ Py_XDECREF(x);
+ 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,
+ &v, &outpos, &p)) {
+ goto onError;
+ }
+ }
+ }
+ 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 = {
+ PyVarObject_HEAD_INIT(NULL, 0)
+ "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++) {
+ 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 (Py_TYPE(mapping) == &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 (Py_TYPE(mapping) == &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 */
+ for (collpos = collstartpos; collpos < collendpos;) {
+ char buffer[2+29+1+1];
+ char *cp;
+ Py_UCS4 ch = p[collpos++];
+#ifndef Py_UNICODE_WIDE
+ if ((0xD800 <= ch && ch <= 0xDBFF) &&
+ (collpos < collendpos) &&
+ (0xDC00 <= p[collpos] && p[collpos] <= 0xDFFF)) {
+ ch = ((((ch & 0x03FF) << 10) |
+ ((Py_UCS4)p[collpos++] & 0x03FF)) + 0x10000);
+ }
+#endif
+ sprintf(buffer, "&#%d;", (int)ch);
+ 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_CLEAR(*exceptionObject);
+ }
+}
+
+/* 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_SetString(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;) {
+ char buffer[2+29+1+1];
+ char *cp;
+ Py_UCS4 ch = _Py_UNICODE_NEXT(p, collend);
+ sprintf(buffer, "&#%d;", (int)ch);
+ 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;
+ for (collend = p+1; collend < end; collend++) {
+ if ((0 < *collend && *collend < 256) ||
+ Py_UNICODE_ISSPACE(*collend) ||
+ 0 <= 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;) {
+ Py_UCS4 ch = _Py_UNICODE_NEXT(p, collend);
+ output += sprintf(output, "&#%d;", ch);
+ }
+ 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 ------------------------------------------------------------ */
+
+#include "stringlib/unicodedefs.h"
+#include "stringlib/fastsearch.h"
+
+#include "stringlib/count.h"
+#include "stringlib/find.h"
+#include "stringlib/partition.h"
+#include "stringlib/split.h"
+
+/* helper macro to fixup start/end slice values */
+#define ADJUST_INDICES(start, end, len) \
+ if (end > len) \
+ end = len; \
+ else if (end < 0) { \
+ end += len; \
+ if (end < 0) \
+ end = 0; \
+ } \
+ if (start < 0) { \
+ start += len; \
+ if (start < 0) \
+ start = 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;
+ }
+
+ ADJUST_INDICES(start, end, str_obj->length);
+ result = stringlib_count(
+ str_obj->str + start, end - start, sub_obj->str, sub_obj->length,
+ PY_SSIZE_T_MAX
+ );
+
+ 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;
+
+ ADJUST_INDICES(start, end, self->length);
+ 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_ISUPPER(*s)) {
+ *s = Py_UNICODE_TOUPPER(*s);
+ status = 1;
+ }
+ s++;
+ while (--len > 0) {
+ if (!Py_UNICODE_ISLOWER(*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, "can only join an iterable");
+ 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, Py_TYPE(item)->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() result 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;
+ }
+
+ if (left > PY_SSIZE_T_MAX - self->length ||
+ right > PY_SSIZE_T_MAX - (left + self->length)) {
+ PyErr_SetString(PyExc_OverflowError, "padded string is too long");
+ return NULL;
+ }
+ 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;
+}
+
+PyObject *PyUnicode_Splitlines(PyObject *string, int keepends)
+{
+ PyObject *list;
+
+ string = PyUnicode_FromObject(string);
+ if (string == NULL)
+ return NULL;
+
+ list = stringlib_splitlines(
+ (PyObject*) string, PyUnicode_AS_UNICODE(string),
+ PyUnicode_GET_SIZE(string), keepends);
+
+ Py_DECREF(string);
+ return list;
+}
+
+static
+PyObject *split(PyUnicodeObject *self,
+ PyUnicodeObject *substring,
+ Py_ssize_t maxcount)
+{
+ if (maxcount < 0)
+ maxcount = PY_SSIZE_T_MAX;
+
+ if (substring == NULL)
+ return stringlib_split_whitespace(
+ (PyObject*) self, self->str, self->length, maxcount
+ );
+
+ return stringlib_split(
+ (PyObject*) self, self->str, self->length,
+ substring->str, substring->length,
+ maxcount
+ );
+}
+
+static
+PyObject *rsplit(PyUnicodeObject *self,
+ PyUnicodeObject *substring,
+ Py_ssize_t maxcount)
+{
+ if (maxcount < 0)
+ maxcount = PY_SSIZE_T_MAX;
+
+ if (substring == NULL)
+ return stringlib_rsplit_whitespace(
+ (PyObject*) self, self->str, self->length, maxcount
+ );
+
+ return stringlib_rsplit(
+ (PyObject*) self, self->str, self->length,
+ substring->str, substring->length,
+ maxcount
+ );
+}
+
+static
+PyObject *replace(PyUnicodeObject *self,
+ PyUnicodeObject *str1,
+ PyUnicodeObject *str2,
+ Py_ssize_t maxcount)
+{
+ PyUnicodeObject *u;
+
+ if (maxcount < 0)
+ maxcount = PY_SSIZE_T_MAX;
+ else if (maxcount == 0 || self->length == 0)
+ goto nothing;
+
+ if (str1->length == str2->length) {
+ Py_ssize_t i;
+ /* same length */
+ if (str1->length == 0)
+ goto nothing;
+ 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 = stringlib_find(
+ self->str, self->length, str1->str, str1->length, 0
+ );
+ 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);
+
+ /* change everything in-place, starting with this one */
+ Py_UNICODE_COPY(u->str+i, str2->str, str2->length);
+ i += str1->length;
+
+ while ( --maxcount > 0) {
+ i = stringlib_find(self->str+i, self->length-i,
+ str1->str, str1->length,
+ i);
+ if (i == -1)
+ break;
+ Py_UNICODE_COPY(u->str+i, str2->str, str2->length);
+ i += str1->length;
+ }
+ }
+ } else {
+
+ Py_ssize_t n, i, j;
+ Py_ssize_t product, new_size, delta;
+ Py_UNICODE *p;
+
+ /* replace strings */
+ n = stringlib_count(self->str, self->length, str1->str, str1->length,
+ 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;
+ if (str1->length > 0) {
+ while (n-- > 0) {
+ /* look for next match */
+ j = stringlib_find(self->str+i, self->length-i,
+ str1->str, str1->length,
+ i);
+ if (j == -1)
+ break;
+ else if (j > i) {
+ /* 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 and the rest lower 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 Jython 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;
+}
+
+PyObject *PyUnicode_RichCompare(PyObject *left,
+ PyObject *right,
+ int op)
+{
+ int result;
+
+ result = PyUnicode_Compare(left, right);
+ if (result == -1 && PyErr_Occurred())
+ goto onError;
+
+ /* Convert the return value to a Boolean */
+ switch (op) {
+ case Py_EQ:
+ result = (result == 0);
+ break;
+ case Py_NE:
+ result = (result != 0);
+ break;
+ case Py_LE:
+ result = (result <= 0);
+ break;
+ case Py_GE:
+ result = (result >= 0);
+ break;
+ case Py_LT:
+ result = (result == -1);
+ break;
+ case Py_GT:
+ result = (result == 1);
+ break;
+ }
+ return PyBool_FromLong(result);
+
+ onError:
+
+ /* Standard case
+
+ Type errors mean that PyUnicode_FromObject() could not convert
+ one of the arguments (usually the right hand side) to Unicode,
+ ie. we can't handle the comparison request. However, it is
+ possible that the other object knows a comparison method, which
+ is why we return Py_NotImplemented to give the other object a
+ chance.
+
+ */
+ if (PyErr_ExceptionMatches(PyExc_TypeError)) {
+ PyErr_Clear();
+ Py_INCREF(Py_NotImplemented);
+ return Py_NotImplemented;
+ }
+ if (op != Py_EQ && op != Py_NE)
+ return NULL;
+
+ /* Equality comparison.
+
+ This is a special case: we silence any PyExc_UnicodeDecodeError
+ and instead turn it into a PyErr_UnicodeWarning.
+
+ */
+ if (!PyErr_ExceptionMatches(PyExc_UnicodeDecodeError))
+ return NULL;
+ PyErr_Clear();
+ if (PyErr_Warn(PyExc_UnicodeWarning,
+ (op == Py_EQ) ?
+ "Unicode equal comparison "
+ "failed to convert both arguments to Unicode - "
+ "interpreting them as being unequal" :
+ "Unicode unequal comparison "
+ "failed to convert both arguments to Unicode - "
+ "interpreting them as being unequal"
+ ) < 0)
+ return NULL;
+ result = (op == Py_NE);
+ return PyBool_FromLong(result);
+}
+
+int PyUnicode_Contains(PyObject *container,
+ PyObject *element)
+{
+ PyObject *str, *sub;
+ int result;
+
+ /* Coerce the two arguments */
+ sub = PyUnicode_FromObject(element);
+ if (!sub) {
+ 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 (!stringlib_parse_args_finds_unicode("count", args, &substring,
+ &start, &end))
+ return NULL;
+
+ ADJUST_INDICES(start, end, self->length);
+ result = PyInt_FromSsize_t(
+ stringlib_count(self->str + start, end - start,
+ substring->str, substring->length,
+ PY_SSIZE_T_MAX)
+ );
+
+ 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, PyObject *kwargs)
+{
+ static char *kwlist[] = {"encoding", "errors", 0};
+ char *encoding = NULL;
+ char *errors = NULL;
+ PyObject *v;
+
+ if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ss:encode",
+ kwlist, &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)",
+ Py_TYPE(v)->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 registered with codecs.register_error that is\n\
+able to handle UnicodeDecodeErrors.");
+
+static PyObject *
+unicode_decode(PyUnicodeObject *self, PyObject *args, PyObject *kwargs)
+{
+ static char *kwlist[] = {"encoding", "errors", 0};
+ char *encoding = NULL;
+ char *errors = NULL;
+ PyObject *v;
+
+ if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ss:decode",
+ kwlist, &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)",
+ Py_TYPE(v)->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_UNICODE *qe;
+ Py_ssize_t i, j, incr;
+ PyUnicodeObject *u;
+ int tabsize = 8;
+
+ if (!PyArg_ParseTuple(args, "|i:expandtabs", &tabsize))
+ return NULL;
+
+ /* First pass: determine size of output string */
+ i = 0; /* chars up to and including most recent \n or \r */
+ j = 0; /* chars since most recent \n or \r (use in tab calculations) */
+ e = self->str + self->length; /* end of input */
+ for (p = self->str; p < e; p++)
+ if (*p == '\t') {
+ if (tabsize > 0) {
+ incr = tabsize - (j % tabsize); /* cannot overflow */
+ if (j > PY_SSIZE_T_MAX - incr)
+ goto overflow1;
+ j += incr;
+ }
+ }
+ else {
+ if (j > PY_SSIZE_T_MAX - 1)
+ goto overflow1;
+ j++;
+ if (*p == '\n' || *p == '\r') {
+ if (i > PY_SSIZE_T_MAX - j)
+ goto overflow1;
+ i += j;
+ j = 0;
+ }
+ }
+
+ if (i > PY_SSIZE_T_MAX - j)
+ goto overflow1;
+
+ /* Second pass: create output string and fill it */
+ u = _PyUnicode_New(i + j);
+ if (!u)
+ return NULL;
+
+ j = 0; /* same as in first pass */
+ q = u->str; /* next output char */
+ qe = u->str + u->length; /* end of output */
+
+ for (p = self->str; p < e; p++)
+ if (*p == '\t') {
+ if (tabsize > 0) {
+ i = tabsize - (j % tabsize);
+ j += i;
+ while (i--) {
+ if (q >= qe)
+ goto overflow2;
+ *q++ = ' ';
+ }
+ }
+ }
+ else {
+ if (q >= qe)
+ goto overflow2;
+ *q++ = *p;
+ j++;
+ if (*p == '\n' || *p == '\r')
+ j = 0;
+ }
+
+ return (PyObject*) u;
+
+ overflow2:
+ Py_DECREF(u);
+ overflow1:
+ PyErr_SetString(PyExc_OverflowError, "new string is too long");
+ return NULL;
+}
+
+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)
+{
+ PyUnicodeObject *substring;
+ Py_ssize_t start;
+ Py_ssize_t end;
+ Py_ssize_t result;
+
+ if (!stringlib_parse_args_finds_unicode("find", args, &substring,
+ &start, &end))
+ 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;
+
+#ifdef Py_DEBUG
+ assert(_Py_HashSecret_Initialized);
+#endif
+ if (self->hash != -1)
+ return self->hash;
+ len = PyUnicode_GET_SIZE(self);
+ /*
+ We make the hash of the empty string be 0, rather than using
+ (prefix ^ suffix), since this slightly obfuscates the hash secret
+ */
+ if (len == 0) {
+ self->hash = 0;
+ return 0;
+ }
+ p = PyUnicode_AS_UNICODE(self);
+ x = _Py_HashSecret.prefix;
+ x ^= *p << 7;
+ while (--len >= 0)
+ x = (1000003*x) ^ *p++;
+ x ^= PyUnicode_GET_SIZE(self);
+ x ^= _Py_HashSecret.suffix;
+ 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;
+ PyUnicodeObject *substring;
+ Py_ssize_t start;
+ Py_ssize_t end;
+
+ if (!stringlib_parse_args_finds_unicode("index", args, &substring,
+ &start, &end))
+ 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(iterable) -> unicode\n\
+\n\
+Return a string which is the concatenation of the strings in the\n\
+iterable. 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) {
+ Py_ssize_t 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[, count]) -> unicode\n\
+\n\
+Return a copy of S with all occurrences of substring\n\
+old replaced by new. If the optional argument count is\n\
+given, only the first count 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)
+{
+ PyUnicodeObject *substring;
+ Py_ssize_t start;
+ Py_ssize_t end;
+ Py_ssize_t result;
+
+ if (!stringlib_parse_args_finds_unicode("rfind", args, &substring,
+ &start, &end))
+ 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)
+{
+ PyUnicodeObject *substring;
+ Py_ssize_t start;
+ Py_ssize_t end;
+ Py_ssize_t result;
+
+ if (!stringlib_parse_args_finds_unicode("rindex", args, &substring,
+ &start, &end))
+ 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, any\n\
+whitespace string is a separator and empty strings are\n\
+removed from the result.");
+
+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\
+Search for the separator sep in S, and return the part before it,\n\
+the separator itself, and the part after it. If the separator is not\n\
+found, return 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\
+Search for the separator sep in S, starting at the end of S, and return\n\
+the part before it, the separator itself, and the part after it. If the\n\
+separator is not found, return two empty strings and S.");
+
+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=False) -> 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 S with zeros on the left, to fill a field\n\
+of the specified width. The string S 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*
+free_listsize(PyUnicodeObject *self)
+{
+ return PyInt_FromLong(numfree);
+}
+#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 (!stringlib_parse_args_finds("startswith", args, &subobj, &start, &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) {
+ if (PyErr_ExceptionMatches(PyExc_TypeError))
+ PyErr_Format(PyExc_TypeError, "startswith first arg must be str, "
+ "unicode, or tuple, not %s", Py_TYPE(subobj)->tp_name);
+ 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 (!stringlib_parse_args_finds("endswith", args, &subobj, &start, &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) {
+ if (PyErr_ExceptionMatches(PyExc_TypeError))
+ PyErr_Format(PyExc_TypeError, "endswith first arg must be str, "
+ "unicode, or tuple, not %s", Py_TYPE(subobj)->tp_name);
+ return NULL;
+ }
+ result = tailmatch(self, substring, start, end, +1);
+ Py_DECREF(substring);
+ return PyBool_FromLong(result);
+}
+
+
+/* Implements do_string_format, which is unicode because of stringlib */
+#include "stringlib/string_format.h"
+
+PyDoc_STRVAR(format__doc__,
+ "S.format(*args, **kwargs) -> unicode\n\
+\n\
+Return a formatted version of S, using substitutions from args and kwargs.\n\
+The substitutions are identified by braces ('{' and '}').");
+
+static PyObject *
+unicode__format__(PyObject *self, PyObject *args)
+{
+ PyObject *format_spec;
+ PyObject *result = NULL;
+ PyObject *tmp = NULL;
+
+ /* If 2.x, convert format_spec to the same type as value */
+ /* This is to allow things like u''.format('') */
+ if (!PyArg_ParseTuple(args, "O:__format__", &format_spec))
+ goto done;
+ if (!(PyBytes_Check(format_spec) || PyUnicode_Check(format_spec))) {
+ PyErr_Format(PyExc_TypeError, "__format__ arg must be str "
+ "or unicode, not %s", Py_TYPE(format_spec)->tp_name);
+ goto done;
+ }
+ tmp = PyObject_Unicode(format_spec);
+ if (tmp == NULL)
+ goto done;
+ format_spec = tmp;
+
+ result = _PyUnicode_FormatAdvanced(self,
+ PyUnicode_AS_UNICODE(format_spec),
+ PyUnicode_GET_SIZE(format_spec));
+ done:
+ Py_XDECREF(tmp);
+ return result;
+}
+
+PyDoc_STRVAR(p_format__doc__,
+ "S.__format__(format_spec) -> unicode\n\
+\n\
+Return a formatted version of S as described by format_spec.");
+
+static PyObject *
+unicode__sizeof__(PyUnicodeObject *v)
+{
+ return PyInt_FromSsize_t(sizeof(PyUnicodeObject) +
+ sizeof(Py_UNICODE) * (v->length + 1));
+}
+
+PyDoc_STRVAR(sizeof__doc__,
+ "S.__sizeof__() -> size of S in memory, in bytes\n\
+\n\
+");
+
+static PyObject *
+unicode_getnewargs(PyUnicodeObject *v)
+{
+ return Py_BuildValue("(u#)", v->str, v->length);
+}
+
+
+static PyMethodDef unicode_methods[] = {
+ {"encode", (PyCFunction) unicode_encode, METH_VARARGS | METH_KEYWORDS, 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 | METH_KEYWORDS, 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__},
+ {"format", (PyCFunction) do_string_format, METH_VARARGS | METH_KEYWORDS, format__doc__},
+ {"__format__", (PyCFunction) unicode__format__, METH_VARARGS, p_format__doc__},
+ {"_formatter_field_name_split", (PyCFunction) formatter_field_name_split, METH_NOARGS},
+ {"_formatter_parser", (PyCFunction) formatter_parser, METH_NOARGS},
+ {"__sizeof__", (PyCFunction) unicode__sizeof__, METH_NOARGS, sizeof__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) free_listsize, 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 */
+};
+
+static PyObject*
+unicode_subscript(PyUnicodeObject* self, PyObject* item)
+{
+ if (PyIndex_Check(item)) {
+ Py_ssize_t i = PyNumber_AsSsize_t(item, PyExc_IndexError);
+ 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 if (start == 0 && step == 1 && slicelength == self->length &&
+ PyUnicode_CheckExact(self)) {
+ Py_INCREF(self);
+ return (PyObject *)self;
+ } else if (step == 1) {
+ return PyUnicode_FromUnicode(self->str + start, slicelength);
+ } else {
+ source_buf = PyUnicode_AS_UNICODE((PyObject*)self);
+ result_buf = (Py_UNICODE *)PyObject_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);
+ PyObject_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
+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. */
+
+/* Returns a new reference to a PyUnicode object, or NULL on failure. */
+
+static PyObject *
+formatfloat(PyObject *v, int flags, int prec, int type)
+{
+ char *p;
+ PyObject *result;
+ double x;
+
+ x = PyFloat_AsDouble(v);
+ if (x == -1.0 && PyErr_Occurred())
+ return NULL;
+
+ if (prec < 0)
+ prec = 6;
+
+ p = PyOS_double_to_string(x, type, prec,
+ (flags & F_ALT) ? Py_DTSF_ALT : 0, NULL);
+ if (p == NULL)
+ return NULL;
+ result = PyUnicode_FromStringAndSize(p, strlen(p));
+ PyMem_Free(p);
+ return result;
+}
+
+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)
+{
+ PyObject *unistr;
+ char *str;
+ /* 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;
+ /* #7649: "u'%c' % char" should behave like "u'%s' % char" and fail
+ with a UnicodeDecodeError if 'char' is not decodable with the
+ default encoding (usually ASCII, but it might be something else) */
+ str = PyString_AS_STRING(v);
+ if ((unsigned char)str[0] > 0x7F) {
+ /* the char is not ASCII; try to decode the string using the
+ default encoding and return -1 to let the UnicodeDecodeError
+ be raised if the string can't be decoded */
+ unistr = PyUnicode_Decode(str, 1, NULL, "strict");
+ if (unistr == NULL)
+ return -1;
+ buf[0] = PyUnicode_AS_UNICODE(unistr)[0];
+ Py_DECREF(unistr);
+ }
+ else
+ buf[0] = (Py_UNICODE)str[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 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 (Py_TYPE(args)->tp_as_mapping && Py_TYPE(args)->tp_as_mapping->mp_subscript &&
+ !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;
+ int isnumok;
+ PyObject *v = NULL;
+ PyObject *temp = NULL;
+ Py_UNICODE *pbuf;
+ Py_UNICODE sign;
+ Py_ssize_t len;
+ Py_UNICODE formatbuf[FORMATBUFLEN]; /* For format{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_AsSsize_t(v);
+ if (width == -1 && PyErr_Occurred())
+ goto onError;
+ 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 > (PY_SSIZE_T_MAX - ((int)c - '0')) / 10) {
+ 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_AsInt(v);
+ if (prec == -1 && PyErr_Occurred())
+ goto onError;
+ if (prec < 0)
+ prec = 0;
+ if (--fmtcnt >= 0)
+ c = *fmt++;
+ }
+ else if (c >= '0' && c <= '9') {
+ prec = c - '0';
+ while (--fmtcnt >= 0) {
+ c = *fmt++;
+ if (c < '0' || c > '9')
+ break;
+ if (prec > (INT_MAX - ((int)c - '0')) / 10) {
+ 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_CheckExact(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';
+ isnumok = 0;
+ if (PyNumber_Check(v)) {
+ PyObject *iobj=NULL;
+
+ if (PyInt_Check(v) || (PyLong_Check(v))) {
+ iobj = v;
+ Py_INCREF(iobj);
+ }
+ else {
+ iobj = PyNumber_Int(v);
+ if (iobj==NULL) iobj = PyNumber_Long(v);
+ }
+ if (iobj!=NULL) {
+ if (PyInt_Check(iobj)) {
+ isnumok = 1;
+ pbuf = formatbuf;
+ len = formatint(pbuf, sizeof(formatbuf)/sizeof(Py_UNICODE),
+ flags, prec, c, iobj);
+ Py_DECREF(iobj);
+ if (len < 0)
+ goto onError;
+ sign = 1;
+ }
+ else if (PyLong_Check(iobj)) {
+ isnumok = 1;
+ temp = formatlong(iobj, flags, prec, c);
+ Py_DECREF(iobj);
+ if (!temp)
+ goto onError;
+ pbuf = PyUnicode_AS_UNICODE(temp);
+ len = PyUnicode_GET_SIZE(temp);
+ sign = 1;
+ }
+ else {
+ Py_DECREF(iobj);
+ }
+ }
+ }
+ if (!isnumok) {
+ PyErr_Format(PyExc_TypeError,
+ "%%%c format: a number is required, "
+ "not %.200s", (char)c, Py_TYPE(v)->tp_name);
+ goto onError;
+ }
+ if (flags & F_ZERO)
+ fill = '0';
+ break;
+
+ case 'e':
+ case 'E':
+ case 'f':
+ case 'F':
+ case 'g':
+ case 'G':
+ temp = formatfloat(v, flags, prec, c);
+ if (temp == NULL)
+ goto onError;
+ pbuf = PyUnicode_AS_UNICODE(temp);
+ len = PyUnicode_GET_SIZE(temp);
+ 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 %zd",
+ (31<=c && c<=126) ? (char)c : '?',
+ (int)c,
+ (Py_ssize_t)(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 = (Py_UNICODE*) PyObject_MALLOC(sizeof(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(object='') -> unicode object\n\
+unicode(string[, encoding[, errors]]) -> unicode 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 = {
+ PyVarObject_HEAD_INIT(&PyType_Type, 0)
+ "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 */
+ 0, /* 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 | Py_TPFLAGS_UNICODE_SUBCLASS, /* tp_flags */
+ unicode_doc, /* tp_doc */
+ 0, /* tp_traverse */
+ 0, /* tp_clear */
+ PyUnicode_RichCompare, /* 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)
+{
+ /* 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 */
+ if (!unicode_empty) {
+ unicode_empty = _PyUnicode_New(0);
+ if (!unicode_empty)
+ return;
+ }
+
+ 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])
+ );
+
+ PyType_Ready(&EncodingMapType);
+
+ if (PyType_Ready(&PyFieldNameIter_Type) < 0)
+ Py_FatalError("Can't initialize field name iterator type");
+
+ if (PyType_Ready(&PyFormatterIter_Type) < 0)
+ Py_FatalError("Can't initialize formatter iter type");
+}
+
+/* Finalize the Unicode implementation */
+
+int
+PyUnicode_ClearFreeList(void)
+{
+ int freelist_size = numfree;
+ PyUnicodeObject *u;
+
+ for (u = free_list; u != NULL;) {
+ PyUnicodeObject *v = u;
+ u = *(PyUnicodeObject **)u;
+ if (v->str)
+ PyObject_DEL(v->str);
+ Py_XDECREF(v->defenc);
+ PyObject_Del(v);
+ numfree--;
+ }
+ free_list = NULL;
+ assert(numfree == 0);
+ return freelist_size;
+}
+
+void
+_PyUnicode_Fini(void)
+{
+ int i;
+
+ Py_CLEAR(unicode_empty);
+
+ for (i = 0; i < 256; i++)
+ Py_CLEAR(unicode_latin1[i]);
+
+ (void)PyUnicode_ClearFreeList();
+}
+
+#ifdef __cplusplus
+}
+#endif
|