snipstr 1.0.4

A lightweight library for easy-to-use text truncation with a friendly interface.

snipstr

A lightweight library for easy-to-use text truncation with a friendly interface.

Installation

pip install snipstr

Usage

All you need is to import SnipStr:

>>> from snipstr import SnipStr
>>> text = 'Python source code and installers are available for download for all versions!'
>>> s = SnipStr(text)
>>> s.snip_to(16).by_side('right')
>>> str(s)  # 'Python source co'
>>> s.with_replacement_symbol()
>>> str(s)  # 'Python source...'
>>> s.by_side('left')
>>> str(s)  # '...all versions!'
>>> s.snip_to(30)
>>> str(s)  # '... download for all versions!'
>>> s.source  # 'Python source code and installers are available for download for all versions!'

Hashing

SnipStr instances are hashable, which allows them to be used as dictionary keys or in sets. The hash is computed based on all instance attributes: source, snip_to, by_side, with_replacement_symbol.

>>> from snipstr import SnipStr
>>> s1 = SnipStr('Hello, World!')
>>> s1.snip_to(8).by_side('right').with_replacement_symbol()
>>> s2 = SnipStr('Hello, World!')
>>> s2.snip_to(8).by_side('right').with_replacement_symbol()
>>> hash(s1) == hash(s2)  # True

Collections

Since SnipStr is hashable and supports equality, instances can be added to sets and used as dictionary keys:

>>> from snipstr import SnipStr
>>> s1 = SnipStr('Hello')
>>> s1.snip_to(3)
>>> s2 = SnipStr('Hello')
>>> s2.snip_to(3)
>>> s3 = SnipStr('World')
>>> s3.snip_to(3)
# Using in sets (duplicates are removed)
>>> snip_set = {s1, s2, s3}
>>> len(snip_set)  # will return 2
# Using as dictionary keys
>>> snip_dict = {s1: 'first', s3: 'second'}
>>> snip_dict[s2]  # will return 'first', s2 equals s1

Comparison

SnipStr instances support rich comparison operations based on their target length:

>>> from snipstr import SnipStr
>>> short = SnipStr('Hello, World!')
>>> short.snip_to(5)
>>> long = SnipStr('Hello, World!')
>>> long.snip_to(10)
>>> short < long  # True
>>> short <= long  # True
>>> long > short  # True
>>> long >= short  # True

Equality

Two SnipStr instances are equal if all instance attributes (source, snip_to, by_side, with_replacement_symbol) match:

>>> from snipstr import SnipStr
>>> s1 = SnipStr('Hello')
>>> s1.snip_to(3).by_side('right')
>>> s2 = SnipStr('Hello')
>>> s2.snip_to(3).by_side('right')
>>> s3 = SnipStr('Hello')
>>> s3.snip_to(3).by_side('left')
>>> s1 == s2  # will return True
>>> s1 == s3  # will return False 

License

SnipStr is released under the MIT License. See the bundled LICENSE file for details.

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