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elzzur-0.0.1.0
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elzzur solves a Ruzzle board, listing all the valid words with their scores.
| ویژگی | مقدار |
|---|---|
| سیستم عامل | - |
| نام فایل | elzzur-0.0.1.0 |
| نام | elzzur |
| نسخه کتابخانه | 0.0.1.0 |
| نگهدارنده | [] |
| ایمیل نگهدارنده | [] |
| نویسنده | Alberto Pettarin |
| ایمیل نویسنده | alberto@albertopettarin.it |
| آدرس صفحه اصلی | https://github.com/pettarin/elzzur |
| آدرس اینترنتی | https://pypi.org/project/elzzur/ |
| مجوز | MIT License |
elzzur
======
**elzzur** solves a Ruzzle board, listing all the valid words with their
scores.
- Version: 0.0.1
- Date: 2016-05-11
- Developer: `Alberto Pettarin <http://www.albertopettarin.it/>`__
- License: the MIT License (MIT)
- Contact: `click here <http://www.albertopettarin.it/contact.html>`__
Usage
-----
::
$ python -m elzzur --help
$ python -m elzzur solve -l language -b board [-d dictionary] [OPTIONS]
$ python -m elzzur demo -l language
$ python -m elzzur languages
$ python -m elzzur cat -d dictionary [-o output]
$ python -m elzzur compile -d dictionary -o output
$ python -m elzzur generate -l language [-r rows] [-c columns] [-o board]
In demo mode elzzur will solve a built-in real board for the given
language.
If you do not specify a dictionary file, the built-in dictionary for the
given language will be used.
Examples
--------
.. code:: bash
$ python -m elzzur demo -l en
$ python -m elzzur solve -l en -b /path/to/en.board
$ python -m elzzur solve -l en -b /path/to/en.board -d /path/to/your.dict.txt
$ python -m elzzur solve -l it -b /path/to/it.board -d /path/to/your.dict.marisa
Output (board, list of words, statistics):
.. code:: bash
$ python -m elzzur demo -l en
Ttl R S Ndl
Odw Htw E I
Cdw I N V
Etl A D E
COHESIVE 224 (2,0) (1,0) (1,1) (1,2) (0,2) (1,3) (2,3) (3,3)
HEROIC 154 (1,1) (1,2) (0,1) (1,0) (2,1) (2,0)
CHORES 154 (2,0) (1,1) (1,0) (0,1) (1,2) (0,2)
COHEN 149 (2,0) (1,0) (1,1) (1,2) (0,3)
ECHO 144 (3,0) (2,0) (1,1) (1,0)
...
IA 2 (2,1) (3,1)
ES 2 (1,2) (0,2)
ER 2 (1,2) (0,1)
AN 2 (3,1) (2,2)
AI 2 (3,1) (2,1)
Number of words: 281
Length of the longest word: 8
Maximum total score: 7376
See the `OUTPUT file <OUTPUT.md>`__ for the full output.
Installation
------------
.. code:: bash
$ pip install elzzur
or
.. code:: bash
$ git clone https://github.com/pettarin/elzzur
$ cd elzzur
$ python setup.py install
You need the ``marisa-trie`` Python package to run elzzur
(``pip install marisa-trie``).
Scoring Rules
-------------
1. Only words in the given dictionary are valid.
2. Only words at least two letters long are valid.
3. A snake (i.e., a sequence of adjacent letters) cannot intersect
itself, that is, each board cell can be used at most once per snake.
4. Only one snake per word counts, that is, only the first snake forming
a word will get points.
5. The score of a snake is the sum of the scores of its letters (each
multiplied by its letter multiplier, if any), times the product of
the word multipliers (if any), plus the word length points.
6. The word length points are: 25 for 9-letter words, 20 for 8, 15 for
7, 10 for 6, 5 for 5, 0 for all the other cases.
Available Languages
-------------------
The following languages are supported, which means that the code
includes a sample board, letter score, and letter frequency for each of
them:
- ``de``
- ``en``
- ``es``
- ``fr`` (letter score TBC)
- ``it``
- ``nl``
- ``pt`` (letter score TBC)
Adding A New Language
~~~~~~~~~~~~~~~~~~~~~
You need to modify the ``elzzur/languages.py``. Specifically, you need
to edit the following constants:
1. ``LANGUAGES``: add your language code, say ``zz``;
2. ``LETTER_SCORE``: add the score of each letter for language ``zz``;
3. ``LETTER_FREQUENCY``: add the frequency of each letter in language
``zz``, normalizing Unicode and case.
You should also provide a real board file ``zz.board``, and the
``zz.marisa`` dictionary derived from ``aspell-zz``.
If you add a new language, please open a pull request, so that everyone
can get it!
Dictionary File Format
----------------------
The dictionary file must be a plain text, UTF-8 encoded file, with one
word per line:
::
a
A
AA
AAA
Aachen
aah
Aaliyah
...
The words will undergo `Unicode
NFKD <http://unicode.org/reports/tr15/>`__ and `case
normalization <http://unicode.org/faq/casemap_charprop.html>`__,
resulting in a dictionary of (uppercased) ASCII words. For example, the
Italian word ``caffè`` (coffee) will become ``CAFFE``.
Alternatively, dictionary files can be compiled MARISA files, which are
binary serializations of MARISA tries (see Section `Solver
Strategy <#solver-strategy>`__ for details). Providing the dictionary in
this format will make the loading time shorter. To compile a plain text
dictionary into a MARISA binary dictionary, you can invoke:
::
$ python -m elzzur compile -d /path/to/plain/dictionary -o /path/to/output.marisa
Please note that you need to specify the ``.marisa`` extension for
elzzur to load the file as a MARISA trie. Otherwise, it will try to read
it as a plain text file, failing.
Board File Format
-----------------
The board file must be an ASCII file, containing one line per board row,
with letters separated by one space (or more, as multiple spaces are
counted as one), for example:
::
Ttl R S Ndl
Odw Htw E I
Cdw I N V
Etl A D E
The board can have dimensions ``NxM``, with ``N >= 1, M >= 1``, not just
``4x4``, under the constraint that all the rows must have the same
number of columns (letters), that is, the board cannot contain holes.
The multipliers, if present, must be appended to the corresponding
letter, using the following codes:
- ``tw``: triples the value of the word
- ``dw``: doubles the value of the word
- ``tl``: triples the value of the letter
- ``dl``: doubles the value of the letter
You can generate a random board with:
::
$ python -m elzzur generate -l language [-r rows] [-c cols] [-o outputfile]
Solver Strategy
---------------
The current implementation solves a given board in three steps:
1. it finds all the valid snakes, that is, all the adjacent sequences of
letters corresponding to a valid word in the dictionary;
2. for each word, it keeps only the snake with the highest score; and
3. it sorts the words (and the corresponding highest scoring snake),
according to the method requested by the user: score, word length,
word start cell, word end cell.
To find all the valid snakes, a BFS exploration of the board is
performed (simulated with a queue), avoiding extending the current snake
if either:
1. the snake will self-intersect or,
2. the word corresponding to the current snake is not a prefix of any
word in the dictionary.
Clearly, the crucial point consists in speeding the prefix testing up.
Hence, the dictionary is stored in memory as a MARISA trie (either
loaded from a serialized trie version, or converted from a plain text
file).
A `MARISA
trie <http://s-yata.github.io/marisa-trie/docs/readme.en.html>`__ is a
very efficient trie (prefix tree), in terms of both storage space and
preprocessing/running time. In particular, it guarantees that the
following operations are extremely fast:
1. ``has_keys_with_prefix(prefix)``
2. ``keys_with_prefix(prefix)``
3. ``has_key(key)``
The `Python module <https://pypi.python.org/pypi/marisa-trie>`__
``marisa-trie`` is based on the `original
C++ <https://github.com/s-yata/marisa-trie>`__ MARISA code.
Currently, elzzur can solve a 4x4 board in less than 100ms, and a 10x10
board in about 5s.
TODO List
---------
- Let the user run with a new language without editing the source code
- Let the user alter the letter scores without editing the source code
- Let the user specify the letter scores directly in the board file
- Some languages have letters other than ``A-Z``
- Generalize the game to be case-sensitive
- Generalize the game to allow self-intersecting snakes
- Generalize the game to allow holes in the board
- Better random board generation, e.g. based on N-grams and/or
vocabulary
- Given a board (hence, the letters and their number of repetitions),
one can prune the dictionary trie, excluding words that cannot be
formed with the given available letters
- Confirm letter scores for ``fr`` and ``pt``
- Confirm length points for words longer than 9 letters
- Define rules and scores outside the code, using some format/lib TBD
- Nicer command line interface, e.g. better argparse and examples
License
-------
**elzzur** is released under the MIT License.
The included MARISA dictionaries ``res/*.marisa`` were compiled from the
corresponding `GNU aspell <http://aspell.net/>`__ dictionaries, and they
are released under the same license, that is, the GNU GPL v2 License,
see the `licenses <licenses>`__ directory.
`Ruzzle <http://ruzzle-game.com/>`__ is a product of MAG
Interactive(TM).
Acknowledgments
---------------
- My sister and nephews for introducing me to Ruzzle
نحوه نصب
نصب پکیج whl elzzur-0.0.1.0:
pip install elzzur-0.0.1.0.whl
نصب پکیج tar.gz elzzur-0.0.1.0:
pip install elzzur-0.0.1.0.tar.gz