A Python port of the Apache Lucene ASCII Folding Filter that converts alphabetic, numeric, and symbolic Unicode characters which are not in the first 127 ASCII characters (the ‘Basic Latin’ Unicode block) into ASCII equivalents, if they exist.
Copyright (c) 2017 SpanishDict
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Description: # fold_to_ascii
A Python port of the [Apache Lucene ASCII Folding Filter](https://lucene.apache.org/core/4_0_0/analyzers-common/org/apache/lucene/analysis/miscellaneous/ASCIIFoldingFilter.html) that converts alphabetic, numeric, and symbolic Unicode characters which are not in the first 127 ASCII characters (the “Basic Latin” Unicode block) into ASCII equivalents, if they exist.
` python > from fold_to_ascii import fold > s = u'Astroturf® paté' > fold(s) u'Astroturf pate' > fold(s, u'?') u'Astroturf? pate' `
## Differences from [JS fold-to-ascii](https://www.npmjs.com/package/fold-to-ascii)
This library always removes astral characters, even when a replacement character is specified. PRs welcome if you want to fix this.
## Differences from unidecode
There are a few Python unidecode libraries out there ((https://pypi.python.org/pypi/text-unidecode), (https://pypi.python.org/pypi/Unidecode/)). They are based on a Perl program that makes some interesting choices about what to replace, for example, £ (POUND SIGN) is replaced with the string PS. Also, they do not allow specifying a replacement character to use other than the empty string for unmapped characters.
## Development environment
` shell $ virtualenv -p python3 ~/.local/venvs/fold_to_ascii $ source ~/.local/venvs/fold_to_ascii/bin/activate $ pip install -r requirements.txt `
` shell $ make lint && make test `
Requires a [pypi](https://pypi.org/) account.
1. Bump the version in setup.py. 1. Build and upload:
` shell $ python setup.py sdist bdist_wheel $ twine upload dist/* `
Keywords: ascii unicode sanitize diacritics fold folding ligatures Platform: UNKNOWN Description-Content-Type: text/markdown
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