/python-titlecase

Python library to capitalize strings as specified by the New York Times Manual of Style

Primary LanguagePythonMIT LicenseMIT

Titlecase

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This filter changes all words to Title Caps, and attempts to be clever about SMALL words like a/an/the in the input.

The list of "SMALL words" which are not capped comes from the New York Times Manual of Style, plus some others like 'vs' and 'v'.

This is a resurrection of Stuart Colville's titlecase.py, which was in turn a port of John Gruber's titlecase.pl.

Issues, updates, pull requests, etc should be directed to github.

Installation

The easiest method is to simply use pip:

(sudo) pip install titlecase

Usage

Titlecase provides only one function, simply:

>>> from titlecase import titlecase
>>> titlecase('a thing')
'A Thing'

A callback function may also be supplied, which will be called for every word:

>>> def abbreviations(word, **kwargs):
...   if word.upper() in ('TCP', 'UDP'):
...     return word.upper()
...
>>> titlecase.titlecase('a simple tcp and udp wrapper', callback=abbreviations)
'A Simple TCP and UDP Wrapper'

The callback function is supplied with an all_caps keyword argument, indicating whether the entire line of text was entirely capitalized. Returning None from the callback function will allow titlecase to process the word as normal.

Command Line Usage

Titlecase also provides a command line utility titlecase:

$ titlecase make me a title
Make Me a Title
$ echo "Can pipe and/or whatever else" | titlecase
Can Pipe and/or Whatever Else
# Or read/write files:
$ titlecase -f infile -o outfile

Limitations

This is a best-effort library that uses regexes to try to do intelligent things, but will have limitations. For example, it does not have the contextual awareness to distinguish acronyms from words: us (we) versus US (United States).

The regexes and titlecasing rules were written for American English. While there is basic support for Unicode characters, such that something like "El Niño" will work, it is likely that accents or non-English phrases will not be handled correctly.

If anyone has concrete solutions to improve these or other shortcomings of the libraries, pull requests a very welcome!