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137 lines
4.6 KiB
137 lines
4.6 KiB
# Copyright (c) 2006-2019 Andrey Golovigin
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#
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# Permission is hereby granted, free of charge, to any person obtaining
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# a copy of this software and associated documentation files (the
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# "Software"), to deal in the Software without restriction, including
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# without limitation the rights to use, copy, modify, merge, publish,
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# distribute, sublicense, and/or sell copies of the Software, and to
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# permit persons to whom the Software is furnished to do so, subject to
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# the following conditions:
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#
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# The above copyright notice and this permission notice shall be
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# included in all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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# IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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# CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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from __future__ import unicode_literals
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import io
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from xml.sax.saxutils import XMLGenerator
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from xml.sax.xmlreader import AttributesImpl
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import six
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from pybtex.database.output import BaseWriter
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doctype = b"""<!DOCTYPE bibtex:file PUBLIC
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"-//BibTeXML//DTD XML for BibTeX v1.0//EN"
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"bibtexml.dtd" >
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"""
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class _PrettyXMLWriter(object):
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def __init__(self, output, encoding='UTF-8', namespace=('bibtex', 'http://bibtexml.sf.net/'), header=True):
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self.prefix, self.uri = namespace
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self.generator = XMLGenerator(output, encoding=encoding)
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if header:
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self.generator.startDocument()
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self.generator.startPrefixMapping(self.prefix, self.uri)
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self.stack = []
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def write(self, data):
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self.generator.characters(data)
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def newline(self):
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self.write('\n')
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def indent_line(self):
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self.write(' ' * (len(self.stack) * 4))
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def start(self, tag, attrs=None, newline=True):
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if attrs is None:
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attrs = {}
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else:
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attrs = {(None, key): value for key, value in attrs.items()}
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self.indent_line()
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self.stack.append(tag)
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self.generator.startElementNS((self.uri, tag), tag, AttributesImpl(attrs))
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if newline:
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self.newline()
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def end(self, indent=True):
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tag = self.stack.pop()
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if indent:
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self.indent_line()
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self.generator.endElementNS((self.uri, tag), tag)
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self.newline()
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def element(self, tag, data):
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self.start(tag, newline=False)
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self.write(data)
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self.end(indent=False)
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def close(self):
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self.generator.endDocument()
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class Writer(BaseWriter):
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"""Outputs BibTeXML markup"""
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def write_stream(self, bib_data, stream):
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xml_writer = _PrettyXMLWriter(stream, self.encoding)
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self._write(bib_data, xml_writer)
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def to_string(self, bib_data):
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"""
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Return a unicode XML string without encoding declaration.
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>>> from pybtex.database import BibliographyData
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>>> data = BibliographyData()
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>>> unicode_xml = Writer().to_string(data)
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>>> isinstance(unicode_xml, six.text_type)
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True
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>>> print(unicode_xml)
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<bibtex:file xmlns:bibtex="http://bibtexml.sf.net/">
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<BLANKLINE>
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</bibtex:file>
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"""
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output = io.BytesIO()
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writer = _PrettyXMLWriter(output, encoding='UTF-8', header=None)
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self._write(bib_data, writer)
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return output.getvalue().decode('UTF-8').strip()
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def _write(self, bib_data, writer):
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def write_persons(persons, role):
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if persons:
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writer.start(role)
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for person in persons:
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writer.start('person')
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for type in ('first', 'middle', 'prelast', 'last', 'lineage'):
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name = person.get_part_as_text(type)
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if name:
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writer.element(type, name)
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writer.end()
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writer.end()
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writer.start('file')
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writer.newline()
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for key, entry in bib_data.entries.items():
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writer.start('entry', dict(id=key))
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writer.start(entry.original_type)
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for field_name, field_value in entry.fields.items():
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writer.element(field_name, field_value)
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for role, persons in entry.persons.items():
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write_persons(persons, role)
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writer.end()
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writer.end()
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writer.newline()
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writer.end()
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writer.close()
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