fix empty instruction; add anchors and top links

[librarian.git] / librarian / html.py

diff --git a/librarian/html.py b/librarian/html.py
index 92fc134..985970a 100644 (file)
--- a/librarian/html.py
+++ b/librarian/html.py
@@ -5,22 +5,16 @@
 #
 import os
 import cStringIO
 #
 import os
 import cStringIO

-import re

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

-from librarian.parser import WLDocument
-from librarian import XHTMLNS, ParseError
+from librarian import XHTMLNS, ParseError, IOFile
+from librarian import functions

 
 from lxml.etree import XMLSyntaxError, XSLTApplyError
 
 
 from lxml.etree import XMLSyntaxError, XSLTApplyError
 

-ENTITY_SUBSTITUTIONS = [
-    (u'---', u'—'),
-    (u'--', u'–'),
-    (u'...', u'…'),
-    (u',,', u'„'),
-    (u'"', u'”'),
-]
+functions.reg_substitute_entities()
+functions.reg_person_name()

 
 STYLESHEETS = {
     'legacy': 'xslt/book2html.xslt',
 
 STYLESHEETS = {
     'legacy': 'xslt/book2html.xslt',


@@ -31,24 +25,11 @@ STYLESHEETS = {
 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 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 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(input, output_filename=None, is_file=True, \
-    parse_dublincore=True, stylesheet='legacy', options={}):
-    """Transforms file input_filename in XML to output_filename in XHTML.
+def transform(wldoc, stylesheet='legacy', options=None, flags=None):
+    """Transforms the WL document to XHTML.

 
     If output_filename is None, returns an XML,
     otherwise returns True if file has been written,False if it hasn't.
 
     If output_filename is None, returns an XML,
     otherwise returns True if file has been written,False if it hasn't.


@@ -59,13 +40,18 @@ def transform(input, output_filename=None, is_file=True, \
         style_filename = get_stylesheet(stylesheet)
         style = etree.parse(style_filename)
 
         style_filename = get_stylesheet(stylesheet)
         style = etree.parse(style_filename)
 

-        if is_file:
-            document = WLDocument.from_file(input, True, \
-                parse_dublincore=parse_dublincore)
-        else:
-            document = WLDocument.from_string(input, True, \
-                parse_dublincore=parse_dublincore)
+        document = copy.deepcopy(wldoc)
+        del wldoc
+        document.swap_endlines()
+
+        if flags:
+            for flag in flags:
+                document.edoc.getroot().set(flag, 'yes')

 
 

+        document.clean_ed_note()
+
+        if not options:
+            options = {}

         result = document.transform(style, **options)
         del document # no longer needed large object :)
 
         result = document.transform(style, **options)
         del document # no longer needed large object :)
 


@@ -73,16 +59,10 @@ def transform(input, output_filename=None, is_file=True, \
             add_anchors(result.getroot())
             add_table_of_contents(result.getroot())
 
             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
+            return IOFile.from_string(etree.tostring(result, method='html',
+                xml_declaration=False, pretty_print=True, encoding='utf-8'))

         else:
         else:

-            if output_filename is not None:
-                return False
-            else:
-                return "<empty />"
+            return None

     except KeyError:
         raise ValueError("'%s' is not a valid stylesheet.")
     except (XMLSyntaxError, XSLTApplyError), e:
     except KeyError:
         raise ValueError("'%s' is not a valid stylesheet.")
     except (XMLSyntaxError, XSLTApplyError), e:


@@ -137,7 +117,13 @@ def extract_fragments(input_filename):
     open_fragments = {}
     closed_fragments = {}
 
     open_fragments = {}
     closed_fragments = {}
 

-    for event, element in etree.iterparse(input_filename, events=('start', 'end')):
+    # iterparse would die on a HTML document
+    parser = etree.HTMLParser(encoding='utf-8')
+    buf = cStringIO.StringIO()
+    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
         # 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


@@ -177,7 +163,8 @@ def extract_fragments(input_filename):
         # Process all elements except begin and end
         else:
             # Omit annotation tags
         # Process all elements except begin and end
         else:
             # Omit annotation tags

-            if len(element.get('name', '')) or element.get('class', '') == 'annotation':
+            if (len(element.get('name', '')) or 
+                    element.get('class', '') in ('annotation', 'anchor')):

                 if event == 'end' and element.tail:
                     for fragment_id in open_fragments:
                         open_fragments[fragment_id].append('text', element.tail)
                 if event == 'end' and element.tail:
                     for fragment_id in open_fragments:
                         open_fragments[fragment_id].append('text', element.tail)


@@ -221,6 +208,7 @@ 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')
     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'):
             continue
 
         or e.tag == 'blockquote'):
             continue
 


@@ -233,18 +221,27 @@ def add_anchors(root):
             counter += 1
 
 
             counter += 1
 
 

+def raw_printable_text(element):
+    working = copy.deepcopy(element)
+    for e in working.findall('a'):
+        if e.get('class') == 'annotation':
+            e.text = ''
+    return etree.tostring(working, method='text', encoding=unicode).strip()
+
+

 def add_table_of_contents(root):
     sections = []
     counter = 1
     for element in root.iterdescendants():
         if element.tag in ('h2', 'h3'):
 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',)):
+            if any_ancestor(element, lambda e: e.get('id') in ('footnotes', 'nota_red') or e.get('class') in ('person-list',)):

                 continue
 
                 continue
 

+            element_text = raw_printable_text(element)

             if element.tag == 'h3' and len(sections) and sections[-1][1] == 'h2':
             if element.tag == 'h3' and len(sections) and sections[-1][1] == 'h2':

-                sections[-1][3].append((counter, element.tag, ''.join(element.xpath('text()')), []))
+                sections[-1][3].append((counter, element.tag, element_text, []))

             else:
             else:

-                sections.append((counter, element.tag, ''.join(element.xpath('text()')), []))
+                sections.append((counter, element.tag, element_text, []))

             add_anchor(element, "s%d" % counter, with_link=False)
             counter += 1
 
             add_anchor(element, "s%d" % counter, with_link=False)
             counter += 1
 


@@ -266,3 +263,17 @@ def add_table_of_contents(root):
 
     root.insert(0, toc)
 
 
     root.insert(0, toc)
 

+
+def extract_annotations(html_path):
+    """For each annotation, yields a tuple: anchor, text, html."""
+    parser = etree.HTMLParser(encoding='utf-8')
+    tree = etree.parse(html_path, parser)
+    footnotes = tree.find('//*[@id="footnotes"]')
+    if footnotes is not None:
+        for footnote in footnotes.findall('div'):
+            anchor = footnote.find('a[@name]').get('name')
+            del footnote[:2]
+            text_str = etree.tostring(footnote, method='text', encoding='utf-8').strip()
+            html_str = etree.tostring(footnote, method='html', encoding='utf-8')
+            yield anchor, text_str, html_str
+