qante - Query ANnotated TExt
============================
Motivation
----------
Extracting the highly-valuable data from unstructured text often
results in hard-to-read, brittle, difficult-to-maintain code.
The problem is that using regular expressions directly embedded
in the program control flow does not provide the best level of
abstraction. We propose a query language (based on the tuple
relational calculus) that facilitates data extraction.
Developers can explicitly express their intent declaratively,
making their code much easier to write, read, and maintain.
Solution
--------
This package allows programmers to express what they are searching
for by using higher-level concepts to express their query as tags,
locations, and expressions on location relations.
The *location* of a string of characters within the document is
the interval defining its starting and ending position.
Locations are grouped into sets named by *tags*. Tags can be
used in conjunctions and disjunctions of interval relations to
query for tuples of locations.
Documentation
-------------
We invite you to view our YouTube `video`_ of our `presentation`_ from the `Playlist`_
for `PyData Global 2022`_.
We presented this material from our `GitHub`_ repo:
* `pydataG22.pdf`_ slides of our talk.
* `ipynb/pydata.ipynb`_ a ``jupyter notebook`` with examples.
* `RELEASE_NOTES.rst` describes updates for each release.
Use one of these pip or python commands (rev 3 or above) to install from `PyPI`_::
pip install qante
python -m pip install qante
Use python docstrings for API Documentation::
python # rev 3 or above
from quante.tagger import Tagger
from quante.query import Query
from quante import loctuple as lt
from quant.table import get_table
help(Tagger) # annotate text with tags using tagRE('tagname', regexp)
help(Query) # Syntax for querying annotated text
help(lt) # Predicates used by queries
help(get_table) # extract table (as dictionaries) from text
See also: "API Documentation" at the end of our jupyter notebook.
We welcome your questions by electronic mail at: qante{at}asgard.com
.. _`GitHub`: https://github.com/AsgardSystems/qante
.. _`PyPI`: https://pypi.org
.. _`video`: https://www.youtube.com/watch?v=w9UfQ1TKIuE&t=0s
.. _`presentation`: https://global2022.pydata.org/cfp/talk/LUYPAE/
.. _`PyData Global 2022`: https://pydata.org/global2022/
.. _`Playlist`: https://www.youtube.com/playlist?list=PLGVZCDnMOq0qgYUt0yn7F80wmzCnj2dEq
.. _`pydataG22.pdf`: https://github.com/AsgardSystems/qante/blob/main/pydataG22.pdf
.. _`RELEASE_NOTES.rst`: https://github.com/AsgardSystems/qante/blob/main/RELEASE_NOTES.rst
.. _`ipynb/pydata.ipynb`: https://github.com/AsgardSystems/qante/blob/main/ipynb/pydata.ipynb
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