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author | Ben Murdoch <benm@google.com> | 2011-05-05 14:36:32 +0100 |
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committer | Ben Murdoch <benm@google.com> | 2011-05-10 15:38:30 +0100 |
commit | f05b935882198ccf7d81675736e3aeb089c5113a (patch) | |
tree | 4ea0ca838d9ef1b15cf17ddb3928efb427c7e5a1 /WebKitTools/Scripts/webkitpy/thirdparty/simplejson/_speedups.c | |
parent | 60fbdcc62bced8db2cb1fd233cc4d1e4ea17db1b (diff) | |
download | external_webkit-f05b935882198ccf7d81675736e3aeb089c5113a.zip external_webkit-f05b935882198ccf7d81675736e3aeb089c5113a.tar.gz external_webkit-f05b935882198ccf7d81675736e3aeb089c5113a.tar.bz2 |
Merge WebKit at r74534: Initial merge by git.
Change-Id: I6ccd1154fa1b19c2ec2a66878eb675738735f1eb
Diffstat (limited to 'WebKitTools/Scripts/webkitpy/thirdparty/simplejson/_speedups.c')
-rw-r--r-- | WebKitTools/Scripts/webkitpy/thirdparty/simplejson/_speedups.c | 215 |
1 files changed, 0 insertions, 215 deletions
diff --git a/WebKitTools/Scripts/webkitpy/thirdparty/simplejson/_speedups.c b/WebKitTools/Scripts/webkitpy/thirdparty/simplejson/_speedups.c deleted file mode 100644 index 8f290bb..0000000 --- a/WebKitTools/Scripts/webkitpy/thirdparty/simplejson/_speedups.c +++ /dev/null @@ -1,215 +0,0 @@ -#include "Python.h" -#if PY_VERSION_HEX < 0x02050000 && !defined(PY_SSIZE_T_MIN) -typedef int Py_ssize_t; -#define PY_SSIZE_T_MAX INT_MAX -#define PY_SSIZE_T_MIN INT_MIN -#endif - -static Py_ssize_t -ascii_escape_char(Py_UNICODE c, char *output, Py_ssize_t chars); -static PyObject * -ascii_escape_unicode(PyObject *pystr); -static PyObject * -ascii_escape_str(PyObject *pystr); -static PyObject * -py_encode_basestring_ascii(PyObject* self __attribute__((__unused__)), PyObject *pystr); -void init_speedups(void); - -#define S_CHAR(c) (c >= ' ' && c <= '~' && c != '\\' && c != '/' && c != '"') - -#define MIN_EXPANSION 6 -#ifdef Py_UNICODE_WIDE -#define MAX_EXPANSION (2 * MIN_EXPANSION) -#else -#define MAX_EXPANSION MIN_EXPANSION -#endif - -static Py_ssize_t -ascii_escape_char(Py_UNICODE c, char *output, Py_ssize_t chars) { - Py_UNICODE x; - output[chars++] = '\\'; - switch (c) { - case '/': output[chars++] = (char)c; break; - case '\\': output[chars++] = (char)c; break; - case '"': output[chars++] = (char)c; break; - case '\b': output[chars++] = 'b'; break; - case '\f': output[chars++] = 'f'; break; - case '\n': output[chars++] = 'n'; break; - case '\r': output[chars++] = 'r'; break; - case '\t': output[chars++] = 't'; break; - default: -#ifdef Py_UNICODE_WIDE - if (c >= 0x10000) { - /* UTF-16 surrogate pair */ - Py_UNICODE v = c - 0x10000; - c = 0xd800 | ((v >> 10) & 0x3ff); - output[chars++] = 'u'; - x = (c & 0xf000) >> 12; - output[chars++] = (x < 10) ? '0' + x : 'a' + (x - 10); - x = (c & 0x0f00) >> 8; - output[chars++] = (x < 10) ? '0' + x : 'a' + (x - 10); - x = (c & 0x00f0) >> 4; - output[chars++] = (x < 10) ? '0' + x : 'a' + (x - 10); - x = (c & 0x000f); - output[chars++] = (x < 10) ? '0' + x : 'a' + (x - 10); - c = 0xdc00 | (v & 0x3ff); - output[chars++] = '\\'; - } -#endif - output[chars++] = 'u'; - x = (c & 0xf000) >> 12; - output[chars++] = (x < 10) ? '0' + x : 'a' + (x - 10); - x = (c & 0x0f00) >> 8; - output[chars++] = (x < 10) ? '0' + x : 'a' + (x - 10); - x = (c & 0x00f0) >> 4; - output[chars++] = (x < 10) ? '0' + x : 'a' + (x - 10); - x = (c & 0x000f); - output[chars++] = (x < 10) ? '0' + x : 'a' + (x - 10); - } - return chars; -} - -static PyObject * -ascii_escape_unicode(PyObject *pystr) { - Py_ssize_t i; - Py_ssize_t input_chars; - Py_ssize_t output_size; - Py_ssize_t chars; - PyObject *rval; - char *output; - Py_UNICODE *input_unicode; - - input_chars = PyUnicode_GET_SIZE(pystr); - input_unicode = PyUnicode_AS_UNICODE(pystr); - /* One char input can be up to 6 chars output, estimate 4 of these */ - output_size = 2 + (MIN_EXPANSION * 4) + input_chars; - rval = PyString_FromStringAndSize(NULL, output_size); - if (rval == NULL) { - return NULL; - } - output = PyString_AS_STRING(rval); - chars = 0; - output[chars++] = '"'; - for (i = 0; i < input_chars; i++) { - Py_UNICODE c = input_unicode[i]; - if (S_CHAR(c)) { - output[chars++] = (char)c; - } else { - chars = ascii_escape_char(c, output, chars); - } - if (output_size - chars < (1 + MAX_EXPANSION)) { - /* There's more than four, so let's resize by a lot */ - output_size *= 2; - /* This is an upper bound */ - if (output_size > 2 + (input_chars * MAX_EXPANSION)) { - output_size = 2 + (input_chars * MAX_EXPANSION); - } - if (_PyString_Resize(&rval, output_size) == -1) { - return NULL; - } - output = PyString_AS_STRING(rval); - } - } - output[chars++] = '"'; - if (_PyString_Resize(&rval, chars) == -1) { - return NULL; - } - return rval; -} - -static PyObject * -ascii_escape_str(PyObject *pystr) { - Py_ssize_t i; - Py_ssize_t input_chars; - Py_ssize_t output_size; - Py_ssize_t chars; - PyObject *rval; - char *output; - char *input_str; - - input_chars = PyString_GET_SIZE(pystr); - input_str = PyString_AS_STRING(pystr); - /* One char input can be up to 6 chars output, estimate 4 of these */ - output_size = 2 + (MIN_EXPANSION * 4) + input_chars; - rval = PyString_FromStringAndSize(NULL, output_size); - if (rval == NULL) { - return NULL; - } - output = PyString_AS_STRING(rval); - chars = 0; - output[chars++] = '"'; - for (i = 0; i < input_chars; i++) { - Py_UNICODE c = (Py_UNICODE)input_str[i]; - if (S_CHAR(c)) { - output[chars++] = (char)c; - } else if (c > 0x7F) { - /* We hit a non-ASCII character, bail to unicode mode */ - PyObject *uni; - Py_DECREF(rval); - uni = PyUnicode_DecodeUTF8(input_str, input_chars, "strict"); - if (uni == NULL) { - return NULL; - } - rval = ascii_escape_unicode(uni); - Py_DECREF(uni); - return rval; - } else { - chars = ascii_escape_char(c, output, chars); - } - /* An ASCII char can't possibly expand to a surrogate! */ - if (output_size - chars < (1 + MIN_EXPANSION)) { - /* There's more than four, so let's resize by a lot */ - output_size *= 2; - if (output_size > 2 + (input_chars * MIN_EXPANSION)) { - output_size = 2 + (input_chars * MIN_EXPANSION); - } - if (_PyString_Resize(&rval, output_size) == -1) { - return NULL; - } - output = PyString_AS_STRING(rval); - } - } - output[chars++] = '"'; - if (_PyString_Resize(&rval, chars) == -1) { - return NULL; - } - return rval; -} - -PyDoc_STRVAR(pydoc_encode_basestring_ascii, - "encode_basestring_ascii(basestring) -> str\n" - "\n" - "..." -); - -static PyObject * -py_encode_basestring_ascii(PyObject* self __attribute__((__unused__)), PyObject *pystr) { - /* METH_O */ - if (PyString_Check(pystr)) { - return ascii_escape_str(pystr); - } else if (PyUnicode_Check(pystr)) { - return ascii_escape_unicode(pystr); - } - PyErr_SetString(PyExc_TypeError, "first argument must be a string"); - return NULL; -} - -#define DEFN(n, k) \ - { \ - #n, \ - (PyCFunction)py_ ##n, \ - k, \ - pydoc_ ##n \ - } -static PyMethodDef speedups_methods[] = { - DEFN(encode_basestring_ascii, METH_O), - {} -}; -#undef DEFN - -void -init_speedups(void) -{ - PyObject *m; - m = Py_InitModule4("_speedups", speedups_methods, NULL, NULL, PYTHON_API_VERSION); -} |