Version 2.2

[librarian.git] / src / librarian / html.py

diff --git a/src/librarian/html.py b/src/librarian/html.py
index f8e4a83..d4b9795 100644 (file)
--- a/src/librarian/html.py
+++ b/src/librarian/html.py
@@ -12,6 +12,7 @@ import copy
 from lxml import etree
 from librarian import XHTMLNS, ParseError, OutputFile
 from librarian import functions
 from lxml import etree
 from librarian import XHTMLNS, ParseError, OutputFile
 from librarian import functions

+from PIL import Image

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


@@ -32,20 +33,66 @@ def get_stylesheet(name):
 
 
 def html_has_content(text):
 
 
 def html_has_content(text):

-    return etree.ETXPath('//p|//{%(ns)s}p|//h1|//{%(ns)s}h1' % {'ns': str(XHTMLNS)})(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')
 
 
 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
+    document = etree.parse(six.StringIO(
+        xml.replace('abstrakt', 'dlugi_cytat')
+    ))  # HACK

     result = document.xslt(style)
     result = document.xslt(style)

-    html = re.sub('<a name="sec[0-9]*"/>', '', etree.tostring(result, encoding='unicode'))
+    html = re.sub('<a name="sec[0-9]*"/>', '',
+                  etree.tostring(result, encoding='unicode'))

     return re.sub('</?blockquote[^>]*>', '', html)
 
 
     return re.sub('</?blockquote[^>]*>', '', html)
 
 

-def transform(wldoc, stylesheet='legacy', options=None, flags=None, css=None):
+def add_image_sizes(tree, gallery_path, gallery_url, base_url):
+    widths = [360, 600, 1200, 1800, 2400]
+
+    for i, ilustr in enumerate(tree.findall('//ilustr')):
+        rel_path = ilustr.attrib['src']
+        img_url = six.moves.urllib.parse.urljoin(base_url, rel_path)
+
+        f = six.moves.urllib.request.urlopen(img_url)
+        img = Image.open(f)
+        ext = {'GIF': 'gif', 'PNG': 'png'}.get(img.format, 'jpg')
+
+        srcset = []
+        # Needed widths: predefined and original, limited by
+        # whichever is smaller.
+        img_widths = [
+            w for w in
+            sorted(
+                set(widths + [img.size[0]])
+            )
+            if w <= min(widths[-1], img.size[0])
+        ]
+        largest = None
+        for w in widths:
+            fname = '%d.W%d.%s' % (i, w, ext)
+            fpath = gallery_path + fname
+            if not os.path.exists(fpath):
+                height = round(img.size[1] * w / img.size[0])
+                th = img.resize((w, height))
+                th.save(fpath)
+            th_url = gallery_url + fname
+            srcset.append(" ".join((
+                th_url,
+                '%dw' % w
+            )))
+            largest_url = th_url
+        ilustr.attrib['srcset'] = ", ".join(srcset)
+        ilustr.attrib['src'] = largest_url
+
+        f.close()
+
+
+def transform(wldoc, stylesheet='legacy', options=None, flags=None, css=None, gallery_path='img/', gallery_url='img/', base_url='file://./'):

     """Transforms the WL document to XHTML.
 
     If output_filename is None, returns an XML,
     """Transforms the WL document to XHTML.
 
     If output_filename is None, returns an XML,


@@ -67,12 +114,22 @@ def transform(wldoc, stylesheet='legacy', options=None, flags=None, css=None):
 
         document.clean_ed_note()
         document.clean_ed_note('abstrakt')
 
         document.clean_ed_note()
         document.clean_ed_note('abstrakt')

-
+        document.fix_pa_akap()
+        

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

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

 
 

-        css = css or 'https://static.wolnelektury.pl/css/compressed/book_text.css'
+        try:
+            os.makedirs(gallery_path)
+        except OSError:
+            pass
+
+        add_image_sizes(document.edoc, gallery_path, gallery_url, base_url)
+
+        css = (
+            css
+            or 'https://static.wolnelektury.pl/css/compressed/book_text.css'
+        )

         css = "'%s'" % css
         result = document.transform(style, css=css, **options)
         del document  # no longer needed large object :)
         css = "'%s'" % css
         result = document.transform(style, css=css, **options)
         del document  # no longer needed large object :)


@@ -83,7 +140,9 @@ def transform(wldoc, stylesheet='legacy', options=None, flags=None, css=None):
             add_table_of_contents(result.getroot())
 
             return OutputFile.from_bytes(etree.tostring(
             add_table_of_contents(result.getroot())
 
             return OutputFile.from_bytes(etree.tostring(

-                result, method='html', xml_declaration=False, pretty_print=True, encoding='utf-8'))
+                result, method='html', xml_declaration=False,
+                pretty_print=True, encoding='utf-8'
+            ))

         else:
             return None
     except KeyError:
         else:
             return None
     except KeyError:


@@ -122,7 +181,12 @@ class Fragment(object):
         for event, element in self.closed_events():
             if event == 'start':
                 result.append(u'<%s %s>' % (
         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())))
+                    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':


@@ -146,7 +210,10 @@ def extract_fragments(input_filename):
     # iterparse would die on a HTML document
     parser = etree.HTMLParser(encoding='utf-8')
     buf = six.BytesIO()
     # iterparse would die on a HTML document
     parser = etree.HTMLParser(encoding='utf-8')
     buf = six.BytesIO()

-    buf.write(etree.tostring(etree.parse(input_filename, parser).getroot()[0][0], encoding='utf-8'))
+    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')):
     buf.seek(0)
 
     for event, element in etree.iterparse(buf, events=('start', 'end')):


@@ -165,6 +232,8 @@ def extract_fragments(input_filename):
                 while parent.get('id', None) != 'book-text':
                     cparent = copy.deepcopy(parent)
                     cparent.text = None
                 while parent.get('id', None) != 'book-text':
                     cparent = copy.deepcopy(parent)
                     cparent.text = None

+                    if 'id' in cparent.attrib:
+                        del cparent.attrib['id']

                     parents.append(cparent)
                     parent = parent.getparent()
 
                     parents.append(cparent)
                     parent = parent.getparent()
 


@@ -179,12 +248,15 @@ 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]
 

-            # Append element tail to lost_text (we don't want to lose any text)
+            # 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)
             if element.tail:
                 for fragment_id in open_fragments:
                     open_fragments[fragment_id].append('text', element.tail)


@@ -192,19 +264,27 @@ 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 
+            if (len(element.get('name', '')) or

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

             else:
                 for fragment_id in open_fragments:
             else:
                 for fragment_id in open_fragments:

-                    open_fragments[fragment_id].append(event, copy.copy(element))
+                    celem = copy.copy(element)
+                    if 'id' in celem.attrib:
+                        del celem.attrib['id']
+                    open_fragments[fragment_id].append(
+                        event, celem
+                    )

 
     return closed_fragments, open_fragments
 
 
 
     return closed_fragments, open_fragments
 
 

-def add_anchor(element, prefix, with_link=True, with_target=True, link_text=None):
+def add_anchor(element, prefix, with_link=True, with_target=True,
+               link_text=None):

     parent = element.getparent()
     index = parent.index(element)
 
     parent = element.getparent()
     index = parent.index(element)
 


@@ -234,8 +314,14 @@ def add_anchors(root):
     counter = 1
     for element in root.iterdescendants():
         def f(e):
     counter = 1
     for element in root.iterdescendants():
         def f(e):

-            return e.get('class') in ('note', 'motto', 'motto_podpis', 'dedication', 'frame') or \
-                e.get('id') == 'nota_red' or e.tag == 'blockquote'
+            return (
+                e.get('class') in (
+                    'note', 'motto', 'motto_podpis', 'dedication', 'frame'
+                )
+                or e.get('id') == 'nota_red'
+                or e.tag == 'blockquote'
+                or e.get('id') == 'footnotes'
+            )

         if any_ancestor(element, f):
             continue
 
         if any_ancestor(element, f):
             continue
 


@@ -261,13 +347,19 @@ 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)

-            if element.tag == 'h3' and len(sections) and sections[-1][1] == 'h2':
-                sections[-1][3].append((counter, element.tag, element_text, []))
+            if (element.tag == 'h3' and len(sections)
+                    and sections[-1][1] == 'h2'):
+                sections[-1][3].append(
+                    (counter, element.tag, element_text, [])
+                )

             else:
                 sections.append((counter, element.tag, element_text, []))
             add_anchor(element, "s%d" % counter, with_link=False)
             else:
                 sections.append((counter, element.tag, element_text, []))
             add_anchor(element, "s%d" % counter, with_link=False)


@@ -281,17 +373,19 @@ def add_table_of_contents(root):
 
     for n, section, text, subsections in sections:
         section_element = etree.SubElement(toc_list, 'li')
 
     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)
+        add_anchor(section_element, "s%d" % n, with_target=False,
+                   link_text=text)

 
         if len(subsections):
             subsection_list = etree.SubElement(section_element, 'ol')
             for n1, subsection, subtext, _ in subsections:
                 subsection_element = etree.SubElement(subsection_list, 'li')
 
         if len(subsections):
             subsection_list = etree.SubElement(section_element, 'ol')
             for n1, subsection, subtext, _ in subsections:
                 subsection_element = etree.SubElement(subsection_list, 'li')

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

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

-    
+

 def add_table_of_themes(root):
     try:
         from sortify import sortify
 def add_table_of_themes(root):
     try:
         from sortify import sortify


@@ -341,8 +435,10 @@ 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: