-# -*- coding: utf-8 -*-
-#
-# This file is part of Librarian.
-#
-# Copyright © 2008,2009,2010 Fundacja Nowoczesna Polska <fundacja@nowoczesnapolska.org.pl>
-#
-# For full list of contributors see AUTHORS file.
-#
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU Affero General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU Affero General Public License for more details.
-#
-# You should have received a copy of the GNU Affero General Public License
-# along with this program. If not, see <http://www.gnu.org/licenses/>.
-#
-from librarian import dcparser, parser
-from lxml import etree
-import cStringIO
-import codecs
-import os
-import re
-
-
-ENTITY_SUBSTITUTIONS = [
- (u'---', u'—'),
- (u'--', u'–'),
- (u'...', u'…'),
- (u',,', u'„'),
- (u'"', u'”'),
-]
-
-
-TEMPLATE = u"""\
-Kodowanie znaków w dokumencie: UTF-8.
------
-Publikacja zrealizowana w ramach projektu Wolne Lektury (http://wolnelektury.pl/). Reprodukcja cyfrowa wykonana przez
-Bibliotekę Narodową z egzemplarza pochodzącego ze zbiorów BN. Ten utwór nie jest chroniony prawem autorskim i znajduje
-się w domenie publicznej, co oznacza, że możesz go swobodnie wykorzystywać, publikować i rozpowszechniać.
-
-Wersja lektury w opracowaniu merytorycznym i krytycznym (przypisy i motywy) dostępna jest na stronie %(url)s.
------
-
-
-
-%(text)s
-"""
-
-
-def strip(context, text):
- """Remove unneeded whitespace from beginning and end"""
- if isinstance(text, list):
- text = ''.join(text)
- return re.sub(r'\s+', ' ', text).strip()
-
-
-def substitute_entities(context, text):
- """XPath extension function converting all entites in passed text."""
- if isinstance(text, list):
- text = ''.join(text)
- for entity, substitutution in ENTITY_SUBSTITUTIONS:
- text = text.replace(entity, substitutution)
- return text
-
-
-def wrap_words(context, text, wrapping):
- """XPath extension function automatically wrapping words in passed text"""
- if isinstance(text, list):
- text = ''.join(text)
- if not wrapping:
- return text
-
- words = re.split(r'\s', text)
-
- line_length = 0
- lines = [[]]
- for word in words:
- line_length += len(word) + 1
- if line_length > wrapping:
- # Max line length was exceeded. We create new line
- lines.append([])
- line_length = len(word)
- lines[-1].append(word)
- return '\n'.join(' '.join(line) for line in lines)
-
-
-# Register substitute_entities function with lxml
-ns = etree.FunctionNamespace('http://wolnelektury.pl/functions')
-ns['strip'] = strip
-ns['substitute_entities'] = substitute_entities
-ns['wrap_words'] = wrap_words
-
-
-def transform(input_filename, output_filename, is_file=True, parse_dublincore=True, **options):
- """Transforms file input_filename in XML to output_filename in TXT."""
- # Parse XSLT
- style_filename = os.path.join(os.path.dirname(__file__), 'xslt/book2txt.xslt')
- style = etree.parse(style_filename)
-
- if is_file:
- document = parser.WLDocument.from_file(input_filename, True, parse_dublincore=parse_dublincore)
- else:
- document = parser.WLDocument.from_string(input_filename, True, parse_dublincore=parse_dublincore)
-
- result = document.transform(style, **options)
-
- output_file = codecs.open(output_filename, 'wb', encoding='utf-8')
-
- if parse_dublincore:
- url = dcparser.parse(input_filename).url
- else:
- url = '*' * 10
- output_file.write(TEMPLATE % {
- 'url': url,
- 'text': unicode(result),
- })
-