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# Copyright (C) 2009 Canonical Ltd
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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"""Pyrex implementation of _read_stanza_*."""
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cdef extern from "python-compat.h":
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cdef extern from "stdlib.h":
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void *realloc(void *, int)
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cdef extern from "Python.h":
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ctypedef int Py_ssize_t # Required for older pyrex versions
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ctypedef int Py_UNICODE
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char *PyString_AS_STRING(object s)
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Py_ssize_t PyString_GET_SIZE(object t) except -1
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object PyUnicode_DecodeUTF8(char *string, Py_ssize_t length, char *errors)
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object PyString_FromStringAndSize(char *s, Py_ssize_t len)
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int PyString_CheckExact(object)
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int PyUnicode_CheckExact(object)
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object PyUnicode_Join(object, object)
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object PyUnicode_EncodeASCII(Py_UNICODE *, int, char *)
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Py_UNICODE *PyUnicode_AS_UNICODE(object)
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Py_UNICODE *PyUnicode_AsUnicode(object)
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Py_ssize_t PyUnicode_GET_SIZE(object) except -1
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int PyList_Append(object, object) except -1
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int Py_UNICODE_ISLINEBREAK(Py_UNICODE)
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object PyUnicode_FromUnicode(Py_UNICODE *, int)
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void *Py_UNICODE_COPY(Py_UNICODE *, Py_UNICODE *, int)
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cdef extern from "string.h":
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void *memcpy(void *, void *, int)
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from bzrlib.rio import Stanza
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cdef int _valid_tag_char(char c):
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return (c == c'_' or c == c'-' or
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(c >= c'a' and c <= c'z') or
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(c >= c'A' and c <= c'Z') or
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(c >= c'0' and c <= c'9'))
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if not PyString_CheckExact(tag):
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c_tag = PyString_AS_STRING(tag)
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c_len = PyString_GET_SIZE(tag)
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for i from 0 <= i < c_len:
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if not _valid_tag_char(c_tag[i]):
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cdef object _split_first_line_utf8(char *line, int len,
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char *value, Py_ssize_t *value_len):
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for i from 0 <= i < len:
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raise ValueError("invalid tag in line %r" % line)
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memcpy(value, line+i+2, len-i-2)
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value_len[0] = len-i-2
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return PyString_FromStringAndSize(line, i)
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raise ValueError('tag/value separator not found in line %r' % line)
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cdef object _split_first_line_unicode(Py_UNICODE *line, int len,
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Py_UNICODE *value, Py_ssize_t *value_len):
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for i from 0 <= i < len:
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raise ValueError("invalid tag in line %r" %
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PyUnicode_FromUnicode(line, len))
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memcpy(value, &line[i+2], (len-i-2) * sizeof(Py_UNICODE))
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value_len[0] = len-i-2
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return PyUnicode_EncodeASCII(line, i, "strict")
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raise ValueError("tag/value separator not found in line %r" %
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PyUnicode_FromUnicode(line, len))
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def _read_stanza_utf8(line_iter):
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cdef Py_ssize_t c_len
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cdef char *accum_value, *new_accum_value
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cdef Py_ssize_t accum_len, accum_size
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accum_value = <char *>malloc(accum_size)
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if accum_value == NULL:
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for line in line_iter:
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if not PyString_CheckExact(line):
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raise TypeError("%r is not a plain string" % line)
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c_line = PyString_AS_STRING(line)
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c_len = PyString_GET_SIZE(line)
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if c_len == 1 and c_line[0] == c"\n":
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break # end of stanza
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if accum_len + c_len > accum_size:
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accum_size = (accum_len + c_len)
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new_accum_value = <char *>realloc(accum_value, accum_size)
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if new_accum_value == NULL:
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accum_value = new_accum_value
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if c_line[0] == c'\t': # continues previous value
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raise ValueError('invalid continuation line %r' % line)
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memcpy(accum_value+accum_len, c_line+1, c_len-1)
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accum_len = accum_len + c_len-1
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else: # new tag:value line
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(tag, PyUnicode_DecodeUTF8(accum_value, accum_len-1,
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tag = _split_first_line_utf8(c_line, c_len, accum_value,
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if not _valid_tag(tag):
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raise ValueError("invalid rio tag %r" % (tag,))
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if tag is not None: # add last tag-value
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(tag, PyUnicode_DecodeUTF8(accum_value, accum_len-1, "strict")))
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return Stanza.from_pairs(pairs)
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else: # didn't see any content
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def _read_stanza_unicode(unicode_iter):
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cdef Py_UNICODE *c_line
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cdef Py_UNICODE *accum_value, *new_accum_value
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cdef Py_ssize_t accum_len, accum_size
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accum_value = <Py_UNICODE *>malloc(accum_size*sizeof(Py_UNICODE))
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if accum_value == NULL:
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for line in unicode_iter:
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if not PyUnicode_CheckExact(line):
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raise TypeError("%r is not a unicode string" % line)
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c_line = PyUnicode_AS_UNICODE(line)
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c_len = PyUnicode_GET_SIZE(line)
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if Py_UNICODE_ISLINEBREAK(c_line[0]):
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break # end of stanza
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if accum_len + c_len > accum_size:
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accum_size = accum_len + c_len
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new_accum_value = <Py_UNICODE *>realloc(accum_value,
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accum_size*sizeof(Py_UNICODE))
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if new_accum_value == NULL:
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accum_value = new_accum_value
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if c_line[0] == c'\t': # continues previous value,
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raise ValueError('invalid continuation line %r' % line)
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memcpy(&accum_value[accum_len], &c_line[1],
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(c_len-1)*sizeof(Py_UNICODE))
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accum_len = accum_len + (c_len-1)
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else: # new tag:value line
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(tag, PyUnicode_FromUnicode(accum_value, accum_len-1)))
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tag = _split_first_line_unicode(c_line, c_len, accum_value,
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if not _valid_tag(tag):
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raise ValueError("invalid rio tag %r" % (tag,))
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if tag is not None: # add last tag-value
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(tag, PyUnicode_FromUnicode(accum_value, accum_len-1)))
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return Stanza.from_pairs(pairs)
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else: # didn't see any content
added
removed
bzrlib/_rio_pyx.pyx
