Epub: only attach images referenced in the text.

[librarian.git] / librarian / html.py

diff --git a/librarian/html.py b/librarian/html.py
index 6115b31..ed7b4d6 100644 (file)
--- a/librarian/html.py
+++ b/librarian/html.py
@@ -3,9 +3,10 @@
 # This file is part of Librarian, licensed under GNU Affero GPLv3 or later.
 # Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
 #
 # This file is part of Librarian, licensed under GNU Affero GPLv3 or later.
 # Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
 #

+from __future__ import print_function, unicode_literals
+

 import os
 import re
 import os
 import re

-import cStringIO

 import copy
 
 from lxml import etree
 import copy
 
 from lxml import etree


@@ -13,6 +14,8 @@ from librarian import XHTMLNS, ParseError, OutputFile
 from librarian import functions
 
 from lxml.etree import XMLSyntaxError, XSLTApplyError
 from librarian import functions
 
 from lxml.etree import XMLSyntaxError, XSLTApplyError

+import six
+

 
 functions.reg_substitute_entities()
 functions.reg_person_name()
 
 functions.reg_substitute_entities()
 functions.reg_person_name()


@@ -23,12 +26,25 @@ STYLESHEETS = {
     'partial': 'xslt/wl2html_partial.xslt'
 }
 
     'partial': 'xslt/wl2html_partial.xslt'
 }
 

+

 def get_stylesheet(name):
     return os.path.join(os.path.dirname(__file__), STYLESHEETS[name])
 
 def get_stylesheet(name):
     return os.path.join(os.path.dirname(__file__), STYLESHEETS[name])
 

+

 def html_has_content(text):
     return etree.ETXPath('//p|//{%(ns)s}p|//h1|//{%(ns)s}h1' % {'ns': str(XHTMLNS)})(text)
 
 def html_has_content(text):
     return etree.ETXPath('//p|//{%(ns)s}p|//h1|//{%(ns)s}h1' % {'ns': str(XHTMLNS)})(text)
 

+
+def transform_abstrakt(abstrakt_element):
+    style_filename = get_stylesheet('legacy')
+    style = etree.parse(style_filename)
+    xml = etree.tostring(abstrakt_element, encoding='unicode')
+    document = etree.parse(six.StringIO(xml.replace('abstrakt', 'dlugi_cytat')))  # HACK
+    result = document.xslt(style)
+    html = re.sub('<a name="sec[0-9]*"/>', '', etree.tostring(result, encoding='unicode'))
+    return re.sub('</?blockquote[^>]*>', '', html)
+
+

 def transform(wldoc, stylesheet='legacy', options=None, flags=None):
     """Transforms the WL document to XHTML.
 
 def transform(wldoc, stylesheet='legacy', options=None, flags=None):
     """Transforms the WL document to XHTML.
 


@@ -50,26 +66,30 @@ def transform(wldoc, stylesheet='legacy', options=None, flags=None):
                 document.edoc.getroot().set(flag, 'yes')
 
         document.clean_ed_note()
                 document.edoc.getroot().set(flag, 'yes')
 
         document.clean_ed_note()

+        document.clean_ed_note('abstrakt')

 
         if not options:
             options = {}
 
         if not options:
             options = {}

+        options.setdefault('gallery', "''")

         result = document.transform(style, **options)
         result = document.transform(style, **options)

-        del document # no longer needed large object :)
+        del document  # no longer needed large object :)

 
         if html_has_content(result):
             add_anchors(result.getroot())
             add_table_of_themes(result.getroot())
             add_table_of_contents(result.getroot())
 
 
         if html_has_content(result):
             add_anchors(result.getroot())
             add_table_of_themes(result.getroot())
             add_table_of_contents(result.getroot())
 

-            return OutputFile.from_string(etree.tostring(result, method='html',
-                xml_declaration=False, pretty_print=True, encoding='utf-8'))
+            return OutputFile.from_bytes(etree.tostring(
+                result, method='html', xml_declaration=False, pretty_print=True, encoding='utf-8'))

         else:
             return None
     except KeyError:
         raise ValueError("'%s' is not a valid stylesheet.")
         else:
             return None
     except KeyError:
         raise ValueError("'%s' is not a valid stylesheet.")

-    except (XMLSyntaxError, XSLTApplyError), e:
+    except (XMLSyntaxError, XSLTApplyError) as e:

         raise ParseError(e)
 
         raise ParseError(e)
 

+
+@six.python_2_unicode_compatible

 class Fragment(object):
     def __init__(self, id, themes):
         super(Fragment, self).__init__()
 class Fragment(object):
     def __init__(self, id, themes):
         super(Fragment, self).__init__()


@@ -89,7 +109,7 @@ class Fragment(object):
                 try:
                     stack.pop()
                 except IndexError:
                 try:
                     stack.pop()
                 except IndexError:

-                    print 'CLOSED NON-OPEN TAG:', element
+                    print('CLOSED NON-OPEN TAG:', element)

 
         stack.reverse()
         return self.events + stack
 
         stack.reverse()
         return self.events + stack


@@ -98,7 +118,8 @@ class Fragment(object):
         result = []
         for event, element in self.closed_events():
             if event == 'start':
         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())))
+                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':
                 if element.text:
                     result.append(element.text)
             elif event == 'end':


@@ -110,7 +131,7 @@ class Fragment(object):
 
         return ''.join(result)
 
 
         return ''.join(result)
 

-    def __unicode__(self):
+    def __str__(self):

         return self.to_string()
 
 
         return self.to_string()
 
 


@@ -121,14 +142,15 @@ def extract_fragments(input_filename):
 
     # iterparse would die on a HTML document
     parser = etree.HTMLParser(encoding='utf-8')
 
     # iterparse would die on a HTML document
     parser = etree.HTMLParser(encoding='utf-8')

-    buf = cStringIO.StringIO()
+    buf = six.BytesIO()

     buf.write(etree.tostring(etree.parse(input_filename, parser).getroot()[0][0], encoding='utf-8'))
     buf.seek(0)
 
     for event, element in etree.iterparse(buf, events=('start', 'end')):
         # Process begin and end elements
         if element.get('class', '') in ('theme-begin', 'theme-end'):
     buf.write(etree.tostring(etree.parse(input_filename, parser).getroot()[0][0], encoding='utf-8'))
     buf.seek(0)
 
     for event, element in etree.iterparse(buf, 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
+            if not event == 'end':
+                continue  # Process elements only once, on end event

 
             # Open new fragment
             if element.get('class', '') == 'theme-begin':
 
             # Open new fragment
             if element.get('class', '') == 'theme-begin':


@@ -154,7 +176,7 @@ def extract_fragments(input_filename):
                 try:
                     fragment = open_fragments[element.get('fid')]
                 except KeyError:
                 try:
                     fragment = open_fragments[element.get('fid')]
                 except KeyError:

-                    print '%s:closed not open fragment #%s' % (input_filename, element.get('fid'))
+                    print('%s:closed not open fragment #%s' % (input_filename, element.get('fid')))

                 else:
                     closed_fragments[fragment.id] = fragment
                     del open_fragments[fragment.id]
                 else:
                     closed_fragments[fragment.id] = fragment
                     del open_fragments[fragment.id]


@@ -164,7 +186,6 @@ def extract_fragments(input_filename):
                 for fragment_id in open_fragments:
                     open_fragments[fragment_id].append('text', 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
         # Process all elements except begin and end
         else:
             # Omit annotation tags


@@ -189,7 +210,7 @@ def add_anchor(element, prefix, with_link=True, with_target=True, link_text=None
             link_text = prefix
         anchor = etree.Element('a', href='#%s' % prefix)
         anchor.set('class', 'anchor')
             link_text = prefix
         anchor = etree.Element('a', href='#%s' % prefix)
         anchor.set('class', 'anchor')

-        anchor.text = unicode(link_text)
+        anchor.text = six.text_type(link_text)

         parent.insert(index, anchor)
 
     if with_target:
         parent.insert(index, anchor)
 
     if with_target:


@@ -209,9 +230,10 @@ def any_ancestor(element, test):
 def add_anchors(root):
     counter = 1
     for element in root.iterdescendants():
 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.get('id') == 'nota_red'
-        or e.tag == 'blockquote'):
+        def f(e):
+            return e.get('class') in ('note', 'motto', 'motto_podpis', 'dedication', 'frame') or \
+                e.get('id') == 'nota_red' or e.tag == 'blockquote'
+        if any_ancestor(element, f):

             continue
 
         if element.tag == 'p' and 'verse' in element.get('class', ''):
             continue
 
         if element.tag == 'p' and 'verse' in element.get('class', ''):


@@ -228,7 +250,7 @@ def raw_printable_text(element):
     for e in working.findall('a'):
         if e.get('class') in ('annotation', 'theme-begin'):
             e.text = ''
     for e in working.findall('a'):
         if e.get('class') in ('annotation', 'theme-begin'):
             e.text = ''

-    return etree.tostring(working, method='text', encoding=unicode).strip()
+    return etree.tostring(working, method='text', encoding='unicode').strip()

 
 
 def add_table_of_contents(root):
 
 
 def add_table_of_contents(root):


@@ -236,7 +258,8 @@ def add_table_of_contents(root):
     counter = 1
     for element in root.iterdescendants():
         if element.tag in ('h2', 'h3'):
     counter = 1
     for element in root.iterdescendants():
         if element.tag in ('h2', 'h3'):

-            if any_ancestor(element, lambda e: e.get('id') in ('footnotes', 'nota_red') or e.get('class') in ('person-list',)):
+            if any_ancestor(element,
+                            lambda e: e.get('id') in ('footnotes', 'nota_red') or e.get('class') in ('person-list',)):

                 continue
 
             element_text = raw_printable_text(element)
                 continue
 
             element_text = raw_printable_text(element)


@@ -259,9 +282,9 @@ def add_table_of_contents(root):
 
         if len(subsections):
             subsection_list = etree.SubElement(section_element, 'ol')
 
         if len(subsections):
             subsection_list = etree.SubElement(section_element, 'ol')

-            for n, subsection, text, _ in subsections:
+            for n1, subsection, subtext, _ in subsections:

                 subsection_element = etree.SubElement(subsection_list, 'li')
                 subsection_element = etree.SubElement(subsection_list, 'li')

-                add_anchor(subsection_element, "s%d" % n, with_target=False, link_text=text)
+                add_anchor(subsection_element, "s%d" % n1, with_target=False, link_text=subtext)

 
     root.insert(0, toc)
 
 
     root.insert(0, toc)
 


@@ -270,7 +293,8 @@ def add_table_of_themes(root):
     try:
         from sortify import sortify
     except ImportError:
     try:
         from sortify import sortify
     except ImportError:

-        sortify = lambda x: x
+        def sortify(x):
+            return x

 
     book_themes = {}
     for fragment in root.findall('.//a[@class="theme-begin"]'):
 
     book_themes = {}
     for fragment in root.findall('.//a[@class="theme-begin"]'):


@@ -279,7 +303,7 @@ def add_table_of_themes(root):
         theme_names = [s.strip() for s in fragment.text.split(',')]
         for theme_name in theme_names:
             book_themes.setdefault(theme_name, []).append(fragment.get('name'))
         theme_names = [s.strip() for s in fragment.text.split(',')]
         for theme_name in theme_names:
             book_themes.setdefault(theme_name, []).append(fragment.get('name'))

-    book_themes = book_themes.items()
+    book_themes = list(book_themes.items())

     book_themes.sort(key=lambda s: sortify(s[0]))
     themes_div = etree.Element('div', id="themes")
     themes_ol = etree.SubElement(themes_div, 'ol')
     book_themes.sort(key=lambda s: sortify(s[0]))
     themes_div = etree.Element('div', id="themes")
     themes_ol = etree.SubElement(themes_div, 'ol')


@@ -305,7 +329,7 @@ def extract_annotations(html_path):
     parser = etree.HTMLParser(encoding='utf-8')
     tree = etree.parse(html_path, parser)
     footnotes = tree.find('//*[@id="footnotes"]')
     parser = etree.HTMLParser(encoding='utf-8')
     tree = etree.parse(html_path, parser)
     footnotes = tree.find('//*[@id="footnotes"]')

-    re_qualifier = re.compile(ur'[^\u2014]+\s+\(([^\)]+)\)\s+\u2014')
+    re_qualifier = re.compile(r'[^\u2014]+\s+\(([^\)]+)\)\s+\u2014')

     if footnotes is not None:
         for footnote in footnotes.findall('div'):
             fn_type = footnote.get('class').split('-')[1]
     if footnotes is not None:
         for footnote in footnotes.findall('div'):
             fn_type = footnote.get('class').split('-')[1]


@@ -314,8 +338,8 @@ def extract_annotations(html_path):
             footnote.text = None
             if len(footnote) and footnote[-1].tail == '\n':
                 footnote[-1].tail = None
             footnote.text = None
             if len(footnote) and footnote[-1].tail == '\n':
                 footnote[-1].tail = None

-            text_str = etree.tostring(footnote, method='text', encoding=unicode).strip()
-            html_str = etree.tostring(footnote, method='html', encoding=unicode).strip()
+            text_str = etree.tostring(footnote, method='text', encoding='unicode').strip()
+            html_str = etree.tostring(footnote, method='html', encoding='unicode').strip()

 
             match = re_qualifier.match(text_str)
             if match:
 
             match = re_qualifier.match(text_str)
             if match:


@@ -333,4 +357,3 @@ def extract_annotations(html_path):
                 qualifiers = []
 
             yield anchor, fn_type, qualifiers, text_str, html_str
                 qualifiers = []
 
             yield anchor, fn_type, qualifiers, text_str, html_str

-