Read and write BibTeX files
bibparse -- read and write BibTeX files
bibparse reads and writes BibTeX files.
The main class,
Biblio, is a
dict with methods for parsing, reading, writing and searching for BibTeX data. Each entry in the
Biblio is another kind of special dict,
BibItem. The user usually only needs to access
Version 1.0.0 -- 18 July 2019.
Copyright © 2019 Legisign.org, Tommi Nieminen firstname.lastname@example.org
This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with this program. If not, see https://www.gnu.org/licenses/.
1. Helper functions
The values in some fields (namely author, editor, translator, publisher, address, and pages, all of which may have several names, locations, or other data in their values) of
BibItem are stored internally as
to_bibtex(key, val)-- convert an internal Python value into a BibTeX string
to_python(key, val)-- convert a BibTeX string into an internal Python value
Both functions take a BibTeX field name (key) in order to decide how to handle the value. Except for "pages" where the separator is a single dash "-", the separator is the string " and ", the leading and trailing whitespace included.
to_bibtex('pages', [100, 110])→ '100-110'
to_python('address', 'London and New York')→ ['London', 'New York']
BibError-- the base exception
DuplicateError-- duplicate ID’s
NoIDError-- missing ID in an entry
PreambleError-- invalid preamble
3. BibItem class
dict-derived object representing a single BibTeX entry.
3.1.1 Derived methods
These are derived from
dict but modified to ensure lower-case keys, reasonable ordering of keys in a printout, and sort ordering.
update() has an additional optional
overwrite=bool parameter. If
True (the default),
update() functions exactly like
dict.update(), updating BibItem contents from data in the supplied
False, only new keys in supplied data is added but existing values are not overwritten.
3.1.2 New method
parse(data)-- parse string data into a BibTeX entry
4. Biblio class
The main class. The constructor can be given an optional filename argument; the file is opened and parsed automatically.
4.1.1 Derived methods
__repr__() produces BibTeX-compatible representation of the data so that conversion to string is easily done with
4.1.2 New methods
by_regex(field, regex)-- search in field by regex
by_types(bibtypes, complement=False)-- search by BibTeX type
parse(data)-- parse string as BibTeX data
read(filename)-- read and parse file as BibTeX data
write(filename)-- write file in BibTeX format
by_regex(field, regex) searches the database by field values and returns the matches in a new
Biblio object. E.g.,
by_regex('author', '.*Smith.*') returns all entries where the "author" field contains "Smith".
by_types(bibtypes, complement=False) searches the database by BibTeX types (given without the initial
"@") and returns the matches in a new
bibtypes can be a string specifying a single type (e.g.,
"article") or a list of strings specifying several types (e.g.,
["article", "book"]). If the optional
complement parameter is set to True, the function returns the complement, i.e., all entries not matching the criteria.
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