An experimental diff library for generating operation deltas that represent the difference between two sequences of comparable items.
Project description
Deltas
======
An open licensed (MIT) library for performing generating deltas (A.K.A sequences
of operations) representing the difference between two sequences of comparable
tokens.
* **Installation:** **TODO**
* **Repo**: `http://github.com/halfak/Deltas`_
* **Documentation**: `http://pythonhosted.org/deltas/`_
* Note this library requires Python 3.3 or newer
This library is intended to be used to make experimental difference detection
strategies more easily available. There are currently two strategies available:
``deltas.sequence_matcher.diff(a, b)``:
A shameless wrapper around `difflib.SequenceMatcher` to get it to work
within the structure of *deltas*.
``deltas.sequence_matcher.diff(a, b, segmenter=None)``:
A generalized difference detector that is designed to detect block moves
and copies based on the use of a ``Segmenter``.
:Example:
>>> from deltas import segment_matcher, apply
>>>
>>> a_tokens = ["This", " ", "comes", " ", "first", ".",
... " ",
... "This", " ", "comes", " ", "second", "."]
>>>
>>> b_tokens = ["This", " ", "comes", " ", "second", ".",
... " ",
... "This", " ", "comes", " ", "first", "."]
>>>
>>> operations = segment_matcher.diff(a_tokens, b_tokens)
>>>
>>> for operation in operations:
... print(operation)
...
Equal(name='equal', a1=7, a2=13, b1=0, b2=6)
Insert(name='insert', a1=6, a2=7, b1=6, b2=7)
Equal(name='equal', a1=0, a2=6, b1=7, b2=13)
Delete(name='delete', a1=6, a2=7, b1=13, b2=13)
======
An open licensed (MIT) library for performing generating deltas (A.K.A sequences
of operations) representing the difference between two sequences of comparable
tokens.
* **Installation:** **TODO**
* **Repo**: `http://github.com/halfak/Deltas`_
* **Documentation**: `http://pythonhosted.org/deltas/`_
* Note this library requires Python 3.3 or newer
This library is intended to be used to make experimental difference detection
strategies more easily available. There are currently two strategies available:
``deltas.sequence_matcher.diff(a, b)``:
A shameless wrapper around `difflib.SequenceMatcher` to get it to work
within the structure of *deltas*.
``deltas.sequence_matcher.diff(a, b, segmenter=None)``:
A generalized difference detector that is designed to detect block moves
and copies based on the use of a ``Segmenter``.
:Example:
>>> from deltas import segment_matcher, apply
>>>
>>> a_tokens = ["This", " ", "comes", " ", "first", ".",
... " ",
... "This", " ", "comes", " ", "second", "."]
>>>
>>> b_tokens = ["This", " ", "comes", " ", "second", ".",
... " ",
... "This", " ", "comes", " ", "first", "."]
>>>
>>> operations = segment_matcher.diff(a_tokens, b_tokens)
>>>
>>> for operation in operations:
... print(operation)
...
Equal(name='equal', a1=7, a2=13, b1=0, b2=6)
Insert(name='insert', a1=6, a2=7, b1=6, b2=7)
Equal(name='equal', a1=0, a2=6, b1=7, b2=13)
Delete(name='delete', a1=6, a2=7, b1=13, b2=13)
Release history Release notifications | RSS feed
Download files
Download the file for your platform. If you're not sure which to choose, learn more about installing packages.
Source Distributions
deltas-0.2.4.zip
(27.4 kB
view details)
deltas-0.2.4.tar.gz
(15.7 kB
view details)
File details
Details for the file deltas-0.2.4.zip.
File metadata
- Download URL: deltas-0.2.4.zip
- Upload date:
- Size: 27.4 kB
- Tags: Source
- Uploaded using Trusted Publishing? No
File hashes
| Algorithm | Hash digest | |
|---|---|---|
| SHA256 | fe65d8d4ce3f56b37c243cfd9d71a79a3187db62f8bbd935927a0a75f95f728b |
|
| MD5 | 3302c3f16d0b702a648836e06d2dc84d |
|
| BLAKE2b-256 | ea2a0b8f2a1408e377a99723f80ba3c7179b1c9a85473392bcc0f0962e33c9ea |
File details
Details for the file deltas-0.2.4.tar.gz.
File metadata
- Download URL: deltas-0.2.4.tar.gz
- Upload date:
- Size: 15.7 kB
- Tags: Source
- Uploaded using Trusted Publishing? No
File hashes
| Algorithm | Hash digest | |
|---|---|---|
| SHA256 | fec53304c62289a3327aedbe76385c4d98a21f5940bcff58ac45235877ee7689 |
|
| MD5 | 263f28684c6916b25b34c9fe5d859ac2 |
|
| BLAKE2b-256 | 73f946d2d73878bceb21abf710d7870d90dd7939ccf29068e056b03733404c6a |
