This is fabulous; thank you! :-)

I ran some tests. As expected abbreviations in [ ] or { } are ignored (request: add these?), and as mentioned in Issue #12 it would be nice if reverse definitions such as n.s. (not significant) were included, along with the standard not significant (n.s.) occurrences.

## SINGLE-SENTENCE TESTS:

$ cat victoria-test-single_sentence.txt; python abbreviations/schwartz_hearst.py victoria-test-single_sentence.txt 

  Breast cancer susceptibility gene 1 (BRCA1) is a tumor suppressor protein.
  {'BRCA1': 'Breast cancer susceptibility gene 1'}

## Ditto:

  Breast cancer susceptibility gene 2 [BRCA2] is also a tumor suppressor protein.
  {}

  Victoria is from NS (Nova Scotia).
  {}

  Victoria is from N.S. (Nova Scotia).
  {}

  Victoria is from Nova Scotia (N.S.).
  {'N.S.': 'Nova Scotia'}

  Victoria is from Nova Scotia (NS).
  {'NS': 'Nova Scotia'}

  Breast cancer susceptibility gene 2 (BRCA2) is also a tumor suppressor protein.
  {'BRCA2': 'Breast cancer susceptibility gene 2'}

  Breast cancer susceptibility gene 2 {BRCA2} is also a tumor suppressor protein.
  {}

  Breast cancer susceptibility gene 2 -- BRCA2 -- is also a tumor suppressor protein.
  {}

## More complex tests:

  Victoria is from Nova Scotia (NoSc).
  {'NoSc': 'Nova Scotia'}

  Victoria is from Nova Scotia (ns).
  {'ns': 'Nova Scotia'}

  Victoria is from Nova Scotia (nosc).
  {'nosc': 'Nova Scotia'}

  Association of bioMediCal scientists of CanaDa (ABC).
  {'ABC': 'Association of bioMediCal scientists of CanaDa'}

I am impressed~ :-D

if i want to extract introduction from a science-papper , is there a nice tool?

The above condition is unused, the condition being true or false has no effect on the variable "viable"

Hi Phil,

Thanks so much for this clean and easy to use implementation! I noticed a couple of minor false positives when running it through a long document about space warfare.

Text:

The “satellite” goal of the program was accomplished when China established a space presence with the launch of Dongfanghong I in 1970; although, it wasn’t until the 21st century that the PRC space program kicked into high gear, with the rapid development, buildup and deployment of rockets, satellites, and the first Taikonaut (astronaut) in October 2003. In fact, prior to 2010, the PRC had only conducted ten space launches, one of which put the satellite into orbit.

Once more, also for the Space Race, a strong transatlantic link could strengthen the path towards a peaceful and prosperous future for humankind and by consequence, a more secure period for our democracies: it is in our hands (and brains) to transform these ideas into a great reality.

Berlin is acknowledging the vulnerabilities that could potentially arise through hostile acts in space and set up its own space monitoring center, called the Air and Space Operations Center (ASOC) in September 2020 . 

Abbreviations proposed:

ASOC: and Space Operations Center
and brains: and by consequence, a more secure period for our democracies: it is in our hands
astronaut: and deployment of rockets, satellites, and the first Taikonaut

In case you feel like tweaking!

Fred

You've already done the hard work of cutting releases to GitHub releases. It would make it easier to install if it could be released to PyPI as well. I'm happy to help out with this with your blessing

Abbreviation expansions of the form This Is A Term (TIAT) are not always present in a document. You may also see glossary lists such as

TIAT This Is A Term

where the abbreviation comes first, and abbreviation and term are separated by a tab or other whitespace.

Can we extend the algorithm to resolve such cases?