--- /dev/null
+# -*- coding: utf-8 -*-
+import os
+import cStringIO
+import re
+import copy
+import pkgutil
+
+from lxml import etree
+
+
+ENTITY_SUBSTITUTIONS = [
+ (u'---', u'—'),
+ (u'--', u'–'),
+ (u'...', u'…'),
+ (u',,', u'„'),
+ (u'"', u'”'),
+]
+
+
+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
+
+
+# Register substitute_entities function with lxml
+ns = etree.FunctionNamespace('http://wolnelektury.pl/functions')
+ns['substitute_entities'] = substitute_entities
+
+
+def transform(input_filename, output_filename=None, is_file=True):
+ """Transforms file input_filename in XML to output_filename in XHTML."""
+ # Parse XSLT
+ style_filename = os.path.join(os.path.dirname(__file__), 'book2html.xslt')
+ style = etree.parse(style_filename)
+
+ doc_file = cStringIO.StringIO()
+ expr = re.compile(r'/\s', re.MULTILINE | re.UNICODE);
+
+ if is_file:
+ f = open(input_filename, 'rb')
+ input_filename = f.read()
+ f.close()
+
+ data = input_filename.decode('utf-8')
+ data = expr.sub(u'<br />\n', data)
+ doc_file.write(data.encode('utf-8'))
+ doc_file.seek(0);
+
+ parser = etree.XMLParser(remove_blank_text=True)
+ doc = etree.parse(doc_file, parser)
+
+ result = doc.xslt(style)
+ if result.find('//p') is not None:
+ add_anchors(result.getroot())
+ add_table_of_contents(result.getroot())
+
+ if output_filename is not None:
+ result.write(output_filename, xml_declaration=False, pretty_print=True, encoding='utf-8')
+ else:
+ return result
+ return True
+ else:
+ return False
+
+
+class Fragment(object):
+ def __init__(self, id, themes):
+ super(Fragment, self).__init__()
+ self.id = id
+ self.themes = themes
+ self.events = []
+
+ def append(self, event, element):
+ self.events.append((event, element))
+
+ def closed_events(self):
+ stack = []
+ for event, element in self.events:
+ if event == 'start':
+ stack.append(('end', element))
+ elif event == 'end':
+ try:
+ stack.pop()
+ except IndexError:
+ print 'CLOSED NON-OPEN TAG:', element
+
+ stack.reverse()
+ return self.events + stack
+
+ def to_string(self):
+ result = []
+ for event, element in self.closed_events():
+ if event == 'start':
+ result.append(u'<%s %s>' % (element.tag, ' '.join('%s="%s"' % (k, v) for k, v in element.attrib.items())))
+ if element.text:
+ result.append(element.text)
+ elif event == 'end':
+ result.append(u'</%s>' % element.tag)
+ if element.tail:
+ result.append(element.tail)
+ else:
+ result.append(element)
+
+ return ''.join(result)
+
+ def __unicode__(self):
+ return self.to_string()
+
+
+def extract_fragments(input_filename):
+ """Extracts theme fragments from input_filename."""
+ open_fragments = {}
+ closed_fragments = {}
+
+ for event, element in etree.iterparse(input_filename, events=('start', 'end')):
+ # Process begin and end elements
+ if element.get('class', '') in ('theme-begin', 'theme-end'):
+ if not event == 'end': continue # Process elements only once, on end event
+
+ # Open new fragment
+ if element.get('class', '') == 'theme-begin':
+ fragment = Fragment(id=element.get('fid'), themes=element.text)
+
+ # Append parents
+ if element.getparent().get('id', None) != 'book-text':
+ parents = [element.getparent()]
+ while parents[-1].getparent().get('id', None) != 'book-text':
+ parents.append(parents[-1].getparent())
+
+ parents.reverse()
+ for parent in parents:
+ fragment.append('start', parent)
+
+ open_fragments[fragment.id] = fragment
+
+ # Close existing fragment
+ else:
+ try:
+ fragment = open_fragments[element.get('fid')]
+ except KeyError:
+ print '%s:closed not open fragment #%s' % (input_filename, element.get('fid'))
+ else:
+ closed_fragments[fragment.id] = fragment
+ del open_fragments[fragment.id]
+
+ # Append element tail to lost_text (we don't want to lose any text)
+ if element.tail:
+ for fragment_id in open_fragments:
+ open_fragments[fragment_id].append('text', element.tail)
+
+
+ # Process all elements except begin and end
+ else:
+ # Omit annotation tags
+ if len(element.get('name', '')) or element.get('class', '') == 'annotation':
+ if event == 'end' and element.tail:
+ for fragment_id in open_fragments:
+ open_fragments[fragment_id].append('text', element.tail)
+ else:
+ for fragment_id in open_fragments:
+ open_fragments[fragment_id].append(event, copy.copy(element))
+
+ return closed_fragments, open_fragments
+
+
+def add_anchor(element, prefix, with_link=True, with_target=True, link_text=None):
+ if with_link:
+ if link_text is None:
+ link_text = prefix
+ anchor = etree.Element('a', href='#%s' % prefix)
+ anchor.set('class', 'anchor')
+ anchor.text = unicode(link_text)
+ if element.text:
+ anchor.tail = element.text
+ element.text = u''
+ element.insert(0, anchor)
+
+ if with_target:
+ anchor_target = etree.Element('a', name='%s' % prefix)
+ anchor_target.set('class', 'target')
+ anchor_target.text = u' '
+ if element.text:
+ anchor_target.tail = element.text
+ element.text = u''
+ element.insert(0, anchor_target)
+
+
+def any_ancestor(element, test):
+ for ancestor in element.iterancestors():
+ if test(ancestor):
+ return True
+ return False
+
+
+def add_anchors(root):
+ counter = 1
+ for element in root.iterdescendants():
+ if any_ancestor(element, lambda e: e.get('class') in ('note', 'motto', 'motto_podpis', 'dedication')
+ or e.tag == 'blockquote'):
+ continue
+
+ if element.tag == 'p' and 'verse' in element.get('class', ''):
+ if counter == 1 or counter % 5 == 0:
+ add_anchor(element, "f%d" % counter, link_text=counter)
+ counter += 1
+ elif 'paragraph' in element.get('class', ''):
+ add_anchor(element, "f%d" % counter, link_text=counter)
+ counter += 1
+
+
+def add_table_of_contents(root):
+ sections = []
+ counter = 1
+ for element in root.iterdescendants():
+ if element.tag in ('h2', 'h3'):
+ if any_ancestor(element, lambda e: e.get('id') in ('footnotes',) or e.get('class') in ('person-list',)):
+ continue
+
+ if element.tag == 'h3' and len(sections) and sections[-1][1] == 'h2':
+ sections[-1][3].append((counter, element.tag, ''.join(element.xpath('text()')), []))
+ else:
+ sections.append((counter, element.tag, ''.join(element.xpath('text()')), []))
+ add_anchor(element, "s%d" % counter, with_link=False)
+ counter += 1
+
+ toc = etree.Element('div')
+ toc.set('id', 'toc')
+ toc_header = etree.SubElement(toc, 'h2')
+ toc_header.text = u'Spis treści'
+ toc_list = etree.SubElement(toc, 'ol')
+
+ for n, section, text, subsections in sections:
+ section_element = etree.SubElement(toc_list, 'li')
+ add_anchor(section_element, "s%d" % n, with_target=False, link_text=text)
+
+ if len(subsections):
+ subsection_list = etree.SubElement(section_element, 'ol')
+ for n, subsection, text, _ in subsections:
+ subsection_element = etree.SubElement(subsection_list, 'li')
+ add_anchor(subsection_element, "s%d" % n, with_target=False, link_text=text)
+
+ root.insert(0, toc)
+
fnp / redakcja.git / blobdiff