Mercurial > repos > shellac > guppy_basecaller
diff env/lib/python3.7/site-packages/markupsafe/_speedups.c @ 5:9b1c78e6ba9c draft default tip
"planemo upload commit 6c0a8142489327ece472c84e558c47da711a9142"
| author | shellac |
|---|---|
| date | Mon, 01 Jun 2020 08:59:25 -0400 |
| parents | 79f47841a781 |
| children |
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--- a/env/lib/python3.7/site-packages/markupsafe/_speedups.c Thu May 14 16:47:39 2020 -0400 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,423 +0,0 @@ -/** - * markupsafe._speedups - * ~~~~~~~~~~~~~~~~~~~~ - * - * C implementation of escaping for better performance. Used instead of - * the native Python implementation when compiled. - * - * :copyright: 2010 Pallets - * :license: BSD-3-Clause - */ -#include <Python.h> - -#if PY_MAJOR_VERSION < 3 -#define ESCAPED_CHARS_TABLE_SIZE 63 -#define UNICHR(x) (PyUnicode_AS_UNICODE((PyUnicodeObject*)PyUnicode_DecodeASCII(x, strlen(x), NULL))); - -static Py_ssize_t escaped_chars_delta_len[ESCAPED_CHARS_TABLE_SIZE]; -static Py_UNICODE *escaped_chars_repl[ESCAPED_CHARS_TABLE_SIZE]; -#endif - -static PyObject* markup; - -static int -init_constants(void) -{ - PyObject *module; - -#if PY_MAJOR_VERSION < 3 - /* mapping of characters to replace */ - escaped_chars_repl['"'] = UNICHR("""); - escaped_chars_repl['\''] = UNICHR("'"); - escaped_chars_repl['&'] = UNICHR("&"); - escaped_chars_repl['<'] = UNICHR("<"); - escaped_chars_repl['>'] = UNICHR(">"); - - /* lengths of those characters when replaced - 1 */ - memset(escaped_chars_delta_len, 0, sizeof (escaped_chars_delta_len)); - escaped_chars_delta_len['"'] = escaped_chars_delta_len['\''] = \ - escaped_chars_delta_len['&'] = 4; - escaped_chars_delta_len['<'] = escaped_chars_delta_len['>'] = 3; -#endif - - /* import markup type so that we can mark the return value */ - module = PyImport_ImportModule("markupsafe"); - if (!module) - return 0; - markup = PyObject_GetAttrString(module, "Markup"); - Py_DECREF(module); - - return 1; -} - -#if PY_MAJOR_VERSION < 3 -static PyObject* -escape_unicode(PyUnicodeObject *in) -{ - PyUnicodeObject *out; - Py_UNICODE *inp = PyUnicode_AS_UNICODE(in); - const Py_UNICODE *inp_end = PyUnicode_AS_UNICODE(in) + PyUnicode_GET_SIZE(in); - Py_UNICODE *next_escp; - Py_UNICODE *outp; - Py_ssize_t delta=0, erepl=0, delta_len=0; - - /* First we need to figure out how long the escaped string will be */ - while (*(inp) || inp < inp_end) { - if (*inp < ESCAPED_CHARS_TABLE_SIZE) { - delta += escaped_chars_delta_len[*inp]; - erepl += !!escaped_chars_delta_len[*inp]; - } - ++inp; - } - - /* Do we need to escape anything at all? */ - if (!erepl) { - Py_INCREF(in); - return (PyObject*)in; - } - - out = (PyUnicodeObject*)PyUnicode_FromUnicode(NULL, PyUnicode_GET_SIZE(in) + delta); - if (!out) - return NULL; - - outp = PyUnicode_AS_UNICODE(out); - inp = PyUnicode_AS_UNICODE(in); - while (erepl-- > 0) { - /* look for the next substitution */ - next_escp = inp; - while (next_escp < inp_end) { - if (*next_escp < ESCAPED_CHARS_TABLE_SIZE && - (delta_len = escaped_chars_delta_len[*next_escp])) { - ++delta_len; - break; - } - ++next_escp; - } - - if (next_escp > inp) { - /* copy unescaped chars between inp and next_escp */ - Py_UNICODE_COPY(outp, inp, next_escp-inp); - outp += next_escp - inp; - } - - /* escape 'next_escp' */ - Py_UNICODE_COPY(outp, escaped_chars_repl[*next_escp], delta_len); - outp += delta_len; - - inp = next_escp + 1; - } - if (inp < inp_end) - Py_UNICODE_COPY(outp, inp, PyUnicode_GET_SIZE(in) - (inp - PyUnicode_AS_UNICODE(in))); - - return (PyObject*)out; -} -#else /* PY_MAJOR_VERSION < 3 */ - -#define GET_DELTA(inp, inp_end, delta) \ - while (inp < inp_end) { \ - switch (*inp++) { \ - case '"': \ - case '\'': \ - case '&': \ - delta += 4; \ - break; \ - case '<': \ - case '>': \ - delta += 3; \ - break; \ - } \ - } - -#define DO_ESCAPE(inp, inp_end, outp) \ - { \ - Py_ssize_t ncopy = 0; \ - while (inp < inp_end) { \ - switch (*inp) { \ - case '"': \ - memcpy(outp, inp-ncopy, sizeof(*outp)*ncopy); \ - outp += ncopy; ncopy = 0; \ - *outp++ = '&'; \ - *outp++ = '#'; \ - *outp++ = '3'; \ - *outp++ = '4'; \ - *outp++ = ';'; \ - break; \ - case '\'': \ - memcpy(outp, inp-ncopy, sizeof(*outp)*ncopy); \ - outp += ncopy; ncopy = 0; \ - *outp++ = '&'; \ - *outp++ = '#'; \ - *outp++ = '3'; \ - *outp++ = '9'; \ - *outp++ = ';'; \ - break; \ - case '&': \ - memcpy(outp, inp-ncopy, sizeof(*outp)*ncopy); \ - outp += ncopy; ncopy = 0; \ - *outp++ = '&'; \ - *outp++ = 'a'; \ - *outp++ = 'm'; \ - *outp++ = 'p'; \ - *outp++ = ';'; \ - break; \ - case '<': \ - memcpy(outp, inp-ncopy, sizeof(*outp)*ncopy); \ - outp += ncopy; ncopy = 0; \ - *outp++ = '&'; \ - *outp++ = 'l'; \ - *outp++ = 't'; \ - *outp++ = ';'; \ - break; \ - case '>': \ - memcpy(outp, inp-ncopy, sizeof(*outp)*ncopy); \ - outp += ncopy; ncopy = 0; \ - *outp++ = '&'; \ - *outp++ = 'g'; \ - *outp++ = 't'; \ - *outp++ = ';'; \ - break; \ - default: \ - ncopy++; \ - } \ - inp++; \ - } \ - memcpy(outp, inp-ncopy, sizeof(*outp)*ncopy); \ - } - -static PyObject* -escape_unicode_kind1(PyUnicodeObject *in) -{ - Py_UCS1 *inp = PyUnicode_1BYTE_DATA(in); - Py_UCS1 *inp_end = inp + PyUnicode_GET_LENGTH(in); - Py_UCS1 *outp; - PyObject *out; - Py_ssize_t delta = 0; - - GET_DELTA(inp, inp_end, delta); - if (!delta) { - Py_INCREF(in); - return (PyObject*)in; - } - - out = PyUnicode_New(PyUnicode_GET_LENGTH(in) + delta, - PyUnicode_IS_ASCII(in) ? 127 : 255); - if (!out) - return NULL; - - inp = PyUnicode_1BYTE_DATA(in); - outp = PyUnicode_1BYTE_DATA(out); - DO_ESCAPE(inp, inp_end, outp); - return out; -} - -static PyObject* -escape_unicode_kind2(PyUnicodeObject *in) -{ - Py_UCS2 *inp = PyUnicode_2BYTE_DATA(in); - Py_UCS2 *inp_end = inp + PyUnicode_GET_LENGTH(in); - Py_UCS2 *outp; - PyObject *out; - Py_ssize_t delta = 0; - - GET_DELTA(inp, inp_end, delta); - if (!delta) { - Py_INCREF(in); - return (PyObject*)in; - } - - out = PyUnicode_New(PyUnicode_GET_LENGTH(in) + delta, 65535); - if (!out) - return NULL; - - inp = PyUnicode_2BYTE_DATA(in); - outp = PyUnicode_2BYTE_DATA(out); - DO_ESCAPE(inp, inp_end, outp); - return out; -} - - -static PyObject* -escape_unicode_kind4(PyUnicodeObject *in) -{ - Py_UCS4 *inp = PyUnicode_4BYTE_DATA(in); - Py_UCS4 *inp_end = inp + PyUnicode_GET_LENGTH(in); - Py_UCS4 *outp; - PyObject *out; - Py_ssize_t delta = 0; - - GET_DELTA(inp, inp_end, delta); - if (!delta) { - Py_INCREF(in); - return (PyObject*)in; - } - - out = PyUnicode_New(PyUnicode_GET_LENGTH(in) + delta, 1114111); - if (!out) - return NULL; - - inp = PyUnicode_4BYTE_DATA(in); - outp = PyUnicode_4BYTE_DATA(out); - DO_ESCAPE(inp, inp_end, outp); - return out; -} - -static PyObject* -escape_unicode(PyUnicodeObject *in) -{ - if (PyUnicode_READY(in)) - return NULL; - - switch (PyUnicode_KIND(in)) { - case PyUnicode_1BYTE_KIND: - return escape_unicode_kind1(in); - case PyUnicode_2BYTE_KIND: - return escape_unicode_kind2(in); - case PyUnicode_4BYTE_KIND: - return escape_unicode_kind4(in); - } - assert(0); /* shouldn't happen */ - return NULL; -} -#endif /* PY_MAJOR_VERSION < 3 */ - -static PyObject* -escape(PyObject *self, PyObject *text) -{ - static PyObject *id_html; - PyObject *s = NULL, *rv = NULL, *html; - - if (id_html == NULL) { -#if PY_MAJOR_VERSION < 3 - id_html = PyString_InternFromString("__html__"); -#else - id_html = PyUnicode_InternFromString("__html__"); -#endif - if (id_html == NULL) { - return NULL; - } - } - - /* we don't have to escape integers, bools or floats */ - if (PyLong_CheckExact(text) || -#if PY_MAJOR_VERSION < 3 - PyInt_CheckExact(text) || -#endif - PyFloat_CheckExact(text) || PyBool_Check(text) || - text == Py_None) - return PyObject_CallFunctionObjArgs(markup, text, NULL); - - /* if the object has an __html__ method that performs the escaping */ - html = PyObject_GetAttr(text ,id_html); - if (html) { - s = PyObject_CallObject(html, NULL); - Py_DECREF(html); - if (s == NULL) { - return NULL; - } - /* Convert to Markup object */ - rv = PyObject_CallFunctionObjArgs(markup, (PyObject*)s, NULL); - Py_DECREF(s); - return rv; - } - - /* otherwise make the object unicode if it isn't, then escape */ - PyErr_Clear(); - if (!PyUnicode_Check(text)) { -#if PY_MAJOR_VERSION < 3 - PyObject *unicode = PyObject_Unicode(text); -#else - PyObject *unicode = PyObject_Str(text); -#endif - if (!unicode) - return NULL; - s = escape_unicode((PyUnicodeObject*)unicode); - Py_DECREF(unicode); - } - else - s = escape_unicode((PyUnicodeObject*)text); - - /* convert the unicode string into a markup object. */ - rv = PyObject_CallFunctionObjArgs(markup, (PyObject*)s, NULL); - Py_DECREF(s); - return rv; -} - - -static PyObject* -escape_silent(PyObject *self, PyObject *text) -{ - if (text != Py_None) - return escape(self, text); - return PyObject_CallFunctionObjArgs(markup, NULL); -} - - -static PyObject* -soft_unicode(PyObject *self, PyObject *s) -{ - if (!PyUnicode_Check(s)) -#if PY_MAJOR_VERSION < 3 - return PyObject_Unicode(s); -#else - return PyObject_Str(s); -#endif - Py_INCREF(s); - return s; -} - - -static PyMethodDef module_methods[] = { - {"escape", (PyCFunction)escape, METH_O, - "escape(s) -> markup\n\n" - "Convert the characters &, <, >, ', and \" in string s to HTML-safe\n" - "sequences. Use this if you need to display text that might contain\n" - "such characters in HTML. Marks return value as markup string."}, - {"escape_silent", (PyCFunction)escape_silent, METH_O, - "escape_silent(s) -> markup\n\n" - "Like escape but converts None to an empty string."}, - {"soft_unicode", (PyCFunction)soft_unicode, METH_O, - "soft_unicode(object) -> string\n\n" - "Make a string unicode if it isn't already. That way a markup\n" - "string is not converted back to unicode."}, - {NULL, NULL, 0, NULL} /* Sentinel */ -}; - - -#if PY_MAJOR_VERSION < 3 - -#ifndef PyMODINIT_FUNC /* declarations for DLL import/export */ -#define PyMODINIT_FUNC void -#endif -PyMODINIT_FUNC -init_speedups(void) -{ - if (!init_constants()) - return; - - Py_InitModule3("markupsafe._speedups", module_methods, ""); -} - -#else /* Python 3.x module initialization */ - -static struct PyModuleDef module_definition = { - PyModuleDef_HEAD_INIT, - "markupsafe._speedups", - NULL, - -1, - module_methods, - NULL, - NULL, - NULL, - NULL -}; - -PyMODINIT_FUNC -PyInit__speedups(void) -{ - if (!init_constants()) - return NULL; - - return PyModule_Create(&module_definition); -} - -#endif
