+++ /dev/null
-# -*- coding: utf-8 -*-
-import os
-import cStringIO
-import re
-import codecs
-
-from lxml import etree
-
-from librarian import dcparser
-
-
-ENTITY_SUBSTITUTIONS = [
- (u'---', u'—'),
- (u'--', u'–'),
- (u'...', u'…'),
- (u',,', u'„'),
- (u'"', u'”'),
-]
-
-
-MAX_LINE_LENGTH = 80
-
-
-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):
- """XPath extension function automatically wrapping words in passed text"""
- if isinstance(text, list):
- text = ''.join(text)
- words = re.split(r'\s', text)
-
- line_length = 0
- lines = [[]]
- for word in words:
- line_length += len(word) + 1
- if line_length > MAX_LINE_LENGTH:
- # 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):
- """Transforms file input_filename in XML to output_filename in TXT."""
- # Parse XSLT
- style_filename = os.path.join(os.path.dirname(__file__), 'book2txt.xslt')
- style = etree.parse(style_filename)
-
- doc_file = cStringIO.StringIO()
- expr = re.compile(r'/\s', re.MULTILINE | re.UNICODE);
-
- f = open(input_filename, 'r')
- for line in f:
- line = line.decode('utf-8')
- line = expr.sub(u'<br/>\n', line)
- doc_file.write(line.encode('utf-8'))
- f.close()
-
- doc_file.seek(0)
-
- parser = etree.XMLParser(remove_blank_text=True)
- doc = etree.parse(doc_file, parser)
-
- result = doc.xslt(style)
- output_file = codecs.open(output_filename, 'wb', encoding='utf-8')
- output_file.write(unicode(result) % dcparser.parse(input_filename).url)
-