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FB2 Output: Simplify regular expressions

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This commit is contained in:
Andrey Efremov 2019-10-08 12:16:06 +07:00
parent abe408bc39
commit 3b8d769128
1 changed files with 14 additions and 13 deletions
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27
src/calibre/ebooks/fb2/fb2ml.py
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@ -76,27 +76,28 @@ class FB2MLizer(object):
# Remove pointless tags, but keep their contents.
text = re.sub(r'(?miu)<(strong|emphasis|strikethrough|sub|sup)>(\s*)</\1>', r'\2', text)
# Clean up paragraphs endings.
text = re.sub(r'(?miu)\s+</p>', '</p>', text)
# Condense empty paragraphs into a line break.
text = re.sub(r'(?miu)(<p>\s*</p>\s*){3,}', '<empty-line/>', text)
text = re.sub(r'(?miu)(?:<p></p>\s*){3,}', '<empty-line/>', text)
# Remove empty paragraphs.
text = re.sub(r'(?miu)<p>\s*</p>', '', text)
# Clean up pargraph endings.
text = re.sub(r'(?miu)\s*</p>', '</p>', text)
# Put paragraphs following a paragraph on a separate line.
text = re.sub(r'(?miu)<p></p>', '', text)
# Put the paragraph following a paragraph on a separate line.
text = re.sub(r'(?miu)</p>\s*<p>', '</p>\n<p>', text)
# Remove empty title elements.
text = re.sub(r'(?miu)<title>\s*</title>', '', text)
# Clean up title endings.
text = re.sub(r'(?miu)\s+</title>', '</title>', text)
# Remove empty title elements.
text = re.sub(r'(?miu)<title></title>', '', text)
# Put the paragraph following a title on a separate line.
text = re.sub(r'(?miu)</title>\s*<p>', '</title>\n<p>', text)
# Remove empty sections.
text = re.sub(r'(?miu)<section>\s*</section>', '', text)
# Clean up sections start and ends.
text = re.sub(r'(?miu)\s*</section>', '\n</section>', text)
text = re.sub(r'(?miu)</section>\s*', '</section>\n', text)
text = re.sub(r'(?miu)\s*<section>', '\n<section>', text)
text = re.sub(r'(?miu)<section>\s*', '<section>\n', text)
# Put sectnions followed by sections on a separate line.
# Clean up sections starts and ends.
text = re.sub(r'(?miu)\s*<section>\s*', '\n<section>\n', text)
text = re.sub(r'(?miu)\s*</section>\s*', '\n</section>\n', text)
# Put the section following a section on a separate line.
text = re.sub(r'(?miu)</section>\s*<section>', '</section>\n<section>', text)
if self.opts.insert_blank_line: