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Add argument demote_headers to merge.

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This commit is contained in:
Ethan Dalool 2020-01-20 17:10:22 -08:00
parent 324689ea3c
commit 973731f797
1 changed files with 36 additions and 2 deletions
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38
epubfile.py
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@ -158,6 +158,26 @@ def extract_epub(epub_filepath, directory):
with zipfile.ZipFile(epub_filepath.absolute_path, 'r') as z:
z.extractall(directory.absolute_path)
def demote_xhtml_headers(xhtml, return_soup=False):
if isinstance(xhtml, bs4.BeautifulSoup):
xhtml = str(xhtml)
replacements = [
(r'<h5([^>]*?>.*?)</h5>', r'<h6\1</h6>'),
(r'<h4([^>]*?>.*?)</h4>', r'<h5\1</h5>'),
(r'<h3([^>]*?>.*?)</h3>', r'<h4\1</h4>'),
(r'<h2([^>]*?>.*?)</h2>', r'<h3\1</h3>'),
(r'<h1([^>]*?>.*?)</h1>', r'<h2\1</h2>'),
]
for (re_from, re_to) in replacements:
xhtml = re.sub(re_from, re_to, xhtml, flags=re.DOTALL)
if return_soup:
soup = bs4.BeautifulSoup(xhtml, 'html5lib')
return soup
return xhtml
def fix_xhtml(xhtml, return_soup=False):
if isinstance(xhtml, bs4.BeautifulSoup):
soup = xhtml
@ -1323,7 +1343,13 @@ def holdit_argparse(args):
book.read_opf(book.opf_filepath)
book.save(epub)
def merge(input_filepaths, output_filename, do_headerfile=False, number_headerfile=False):
def merge(
input_filepaths,
output_filename,
demote_headers=False,
do_headerfile=False,
number_headerfile=False,
):
book = Epub.new()
input_filepaths = [pathclass.Path(p) for pattern in input_filepaths for p in winglob.glob(pattern)]
@ -1375,7 +1401,13 @@ def merge(input_filepaths, output_filename, do_headerfile=False, number_headerfi
for id in manifest_ids:
new_id = prefix.format(id)
new_basename = basename_map[id]
book.add_file(new_id, new_basename, input_book.read_file(id))
if demote_headers:
content = input_book.read_file(id, soup=True)
if isinstance(content, bs4.BeautifulSoup):
content = demote_xhtml_headers(content)
else:
content = input_book.read_file(id)
book.add_file(new_id, new_basename, content)
book.move_nav_to_end()
book.save(output_filename)
@ -1391,6 +1423,7 @@ def merge_argparse(args):
return merge(
input_filepaths=args.epubs,
output_filename=args.output,
demote_headers=args.demote_headers,
do_headerfile=args.headerfile,
number_headerfile=args.number_headerfile,
)
@ -1437,6 +1470,7 @@ def main(argv):
p_merge.add_argument('epubs', nargs='+', default=[])
p_merge.add_argument('--output', dest='output', default=None, required=True)
p_merge.add_argument('--headerfile', dest='headerfile', action='store_true')
p_merge.add_argument('--demote_headers', dest='demote_headers', action='store_true')
p_merge.add_argument('--number_headerfile', dest='number_headerfile', action='store_true')
p_merge.add_argument('-y', '--autoyes', dest='autoyes', action='store_true')
p_merge.set_defaults(func=merge_argparse)