epub converter: add internal links processing 7

-figure
-links without id
- img width, height

src/epub_postprocessor.py

@@ -208,6 +208,34 @@ class EpubPostprocessor:
                 new_id = self._create_unique_id(href, tag.attrs['id'])
                 tag.attrs['id'] = new_id
 
+        # ---------------------------------------------------------------------------------
+        internal_link_reg = re.compile(r'(^.+\.(html|xhtml)$)')
+        for href in self.added_to_toc_hrefs:
+            soup = self.href2soup_html[href]
+            tags = soup.find_all('a', {'href': internal_link_reg})
+            for t in tags:
+                href_in_link = t.attrs['href']
+                full_path = [path for path in self.added_to_toc_hrefs if href_in_link in path]
+                if not full_path:
+                    self.logger.log(f'Error in {href} file. No {href_in_link} file found in added to TOC documents. '
+                                    f'While processing href in {t}.')
+                    continue
+
+                href_in_link = full_path[0]
+                new_id = self._create_unique_id(href_in_link, '')
+                t.attrs['placeholder'] = '{{tempStyleToAnchor-' + new_id + '}}'
+                if new_id not in self.internal_anchors:
+                    anchor_soup = self.href2soup_html[href_in_link]
+                    new_anchor_span = soup.new_tag("span")
+                    new_anchor_span.attrs['id'] = new_id
+                    new_anchor_span.attrs['class'] = 'link-anchor'
+                    new_anchor_span.string = "\xa0"
+                    anchor_soup.insert(0, new_anchor_span)
+                    self.internal_anchors.add(new_id)
+
+                del t.attrs['href']
+
+        # ------------------------------------------------------------------------
         # write placeholder to all internal links
         internal_link_reg = re.compile(r'(^.+\.(html|xhtml)\#.+)|(^\#.+)')
         for href in self.added_to_toc_hrefs: