46 lines
1.5 KiB
Python
46 lines
1.5 KiB
Python
"""
|
|
This file contains the necessary functions to determine whether we should tear
|
|
the first page from a PDF file, and actually tear it.
|
|
"""
|
|
import tearpages
|
|
|
|
|
|
# List of bad publishers which adds an extra useless first page, which can be
|
|
# teared. Please, submit a PR to include new ones which I may not be aware of!
|
|
BAD_PUBLISHERS = [
|
|
"IOP"
|
|
]
|
|
|
|
|
|
def tearpage_needed(bibtex):
|
|
"""
|
|
Check whether a given paper needs the first page to be teared or not.
|
|
|
|
:params bibtex: The bibtex entry associated to the paper, to guess \
|
|
whether tearing is needed.
|
|
:returns: A boolean indicating whether first page should be teared or not.
|
|
"""
|
|
# For each bad publisher, look for it in the publisher bibtex entry
|
|
has_bad_publisher = [p in bibtex.get("publisher", [])
|
|
for p in BAD_PUBLISHERS]
|
|
# Return True iff there is at least one bad publisher
|
|
return (True in has_bad_publisher)
|
|
|
|
|
|
def tearpage(filename, bibtex=None):
|
|
"""
|
|
Tear the first page of the file if needed.
|
|
|
|
:params filename: Path to the file to handle.
|
|
:params bibtex: BibTeX dict associated to this file, as the one given by \
|
|
``bibtexparser``.
|
|
:returns: A boolean indicating whether the file has been teared or not. \
|
|
Side effect is tearing the first page from the file.
|
|
"""
|
|
if bibtex is not None and tearpage_needed(bibtex):
|
|
# If tearing is needed, do it and return True
|
|
tearpages.tearpage(filename)
|
|
return True
|
|
# Else, simply return False
|
|
return False
|