So... I found this pre-written function
change_title_of_page_to_chapter_name.
Is this a step in the right direction?
Code:
# Use expression: <(h[123]) [^<>]* id=['"]([^'"]+)['"][^<>]*>([^<>]+)
from calibre import replace_entities
from calibre.ebooks.oeb.polish.toc import TOC, toc_to_html
from calibre.gui2.tweak_book import current_container
from calibre.ebooks.oeb.base import xml2str
def replace(match, number, file_name, metadata, dictionaries, data, functions, *args, **kwargs):
if match is None:
# All matches found, output the resulting Table of Contents.
# The argument metadata is the metadata of the book being edited
if 'toc' in data:
toc = data['toc']
root = TOC()
for (file_name, tag_name, anchor, text) in toc:
parent = root.children[-1] if tag_name == 'h2' and root.children else root
parent.add(text, file_name, anchor)
toc = toc_to_html(root, current_container(), 'toc.html', 'Table of Contents for ' + metadata.title, metadata.language)
print (xml2str(toc))
else:
print ('No headings to build ToC from found')
else:
# Add an entry corresponding to this match to the Table of Contents
if 'toc' not in data:
# The entries are stored in the data object, which will persist
# for all invocations of this function during a 'Replace All' operation
data['toc'] = []
tag_name, anchor, text = match.group(1), replace_entities(match.group(2)), replace_entities(match.group(3))
data['toc'].append((file_name, tag_name, anchor, text))
return match.group() # We don't want to make any actual changes, so return the original matched text
# Ensure that we are called once after the last match is found so we can
# output the ToC
replace.call_after_last_match = True
# Ensure that when running over multiple files, this function is called,
# the files are processed in the order in which they appear in the book
replace.file_order = 'spine'