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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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"""Python implementation of _read_stanza_*."""
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from bzrlib.rio import (
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_tag_re = re.compile(r'^[-a-zA-Z0-9_]+$')
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return bool(_tag_re.match(tag))
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def _read_stanza_utf8(line_iter):
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def iter_unicode_lines():
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for line in line_iter:
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yield line.decode('utf-8')
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return _read_stanza_unicode(iter_unicode_lines())
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def _read_stanza_unicode(unicode_iter):
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# TODO: jam 20060922 This code should raise real errors rather than
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# using 'assert' to process user input, or raising ValueError
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# rather than a more specific error.
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for line in unicode_iter:
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if line is None or line == u'':
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if line[0] == u'\t': # continues previous value
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raise ValueError('invalid continuation line %r' % real_l)
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accum_value.append(u'\n' + line[1:-1])
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else: # new tag:value line
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stanza.add(tag, u''.join(accum_value))
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colon_index = line.index(u': ')
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raise ValueError('tag/value separator not found in line %r'
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tag = str(line[:colon_index])
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if not _valid_tag(tag):
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raise ValueError("invalid rio tag %r" % (tag,))
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accum_value = [line[colon_index+2:-1]]
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if tag is not None: # add last tag-value
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stanza.add(tag, u''.join(accum_value))
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else: # didn't see any content