Grep-Query 1.004

Query logic for lists of scalars/objects

Platform: CPAN

License: Artistic-2.0

Repository: https://github.com/kenneth-olwing/Grep-Query

View on registry: https://metacpan.org/release/Grep-Query


Grep::Query

This module implements a limited query language for logical expressions (AND, OR, NOT, parenthesized, ...etc) and apply it to lists of data for selecting a subset, similar to using "grep" with a block/regexp in the code.

A reason for not using grep with a regular code block directly is that the original impetus for its existence was to allow a user running a command-line tool to submit an arbitrary query for a list the tool had somehow generated (e.g. a list of file names).

The initial approach of having the user pass individual regexes for doing "include/exclude" operations proved to be too limiting if the selection criteria became more complex. Hence the notion of a query language that makes it possible to express more complex combinations of regexes was born.

Matching can be most readily done on plain lists of scalar strings/values, but by providing a 'field accessor', matching can be done against lists of arbitrary objects/hashes using all possible data they contain, including doing both string (regexes, eq/ne/gt/ge/lt/le) as well as numerical (==/!=/>/>=/</<=) comparisons.

Arguably, it may be seen as a 'grep' on steroids :-).

INSTALLATION

To install this module, run the following commands:

perl Makefile.PL
make
make test
make install

SUPPORT AND DOCUMENTATION

After installing, you can find documentation for this module with the perldoc command.

perldoc Grep::Query

You can also look for information at:

RT, CPAN's request tracker (report bugs here)
    http://rt.cpan.org/NoAuth/Bugs.html?Dist=Grep-Query

AnnoCPAN, Annotated CPAN documentation
    http://annocpan.org/dist/Grep-Query

CPAN Ratings
    http://cpanratings.perl.org/d/Grep-Query

Search CPAN
    http://metacpan.org/dist/Grep-Query/
LICENSE AND COPYRIGHT

Copyright (C) 2016 Kenneth Olwing

This program is free software; you can redistribute it and/or modify it under the terms of the the Artistic License (2.0). You may obtain a copy of the full license at:

http://www.perlfoundation.org/artistic\_license\_2\_0

Any use, modification, and distribution of the Standard or Modified Versions is governed by this Artistic License. By using, modifying or distributing the Package, you accept this license. Do not use, modify, or distribute the Package, if you do not accept this license.

If your Modified Version has been derived from a Modified Version made by someone other than you, you are nevertheless required to ensure that your Modified Version complies with the requirements of this license.

This license does not grant you the right to use any trademark, service mark, tradename, or logo of the Copyright Holder.

This license includes the non-exclusive, worldwide, free-of-charge patent license to make, have made, use, offer to sell, sell, import and otherwise transfer the Package with respect to any patent claims licensable by the Copyright Holder that are necessarily infringed by the Package. If you institute patent litigation (including a cross-claim or counterclaim) against any party alleging that the Package constitutes direct or contributory patent infringement, then this Artistic License to you shall terminate on the date that such litigation is filed.

Disclaimer of Warranty: THE PACKAGE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS "AS IS' AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES. THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT ARE DISCLAIMED TO THE EXTENT PERMITTED BY YOUR LOCAL LAW. UNLESS REQUIRED BY LAW, NO COPYRIGHT HOLDER OR CONTRIBUTOR WILL BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING IN ANY WAY OUT OF THE USE OF THE PACKAGE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.


Build Dependencies Requirements Latest Stable Latest Release Licenses
ExtUtils-MakeMaker 0 7.24 Artistic-1.0-Perl
Explore the resolved build dependency tree for Grep-Query 1.004
Dependencies Requirements Latest Stable Latest Release Licenses
IO-Scalar 0
Parse-RecDescent 0 1.962.2 1.967015 Artistic-1.0-Perl
perl 5.01 5.8.15 5.025011 Artistic-1.0-Perl
Explore the resolved dependency tree for Grep-Query 1.004
Test Dependencies Requirements Latest Stable Latest Release Licenses
Test-Differences 0 0.64 Other
Test-Exception 0 0.43 Artistic-1.0-Perl
Test-More 0
Explore the resolved test dependency tree for Grep-Query 1.004

Releases

1.004 January 11, 2017
1.003 January 02, 2017
1.002 September 01, 2016
1.001 August 04, 2016
1.000 August 04, 2016

Project Statistics

SourceRank 7
Dependencies 3
Dependent projects 2
Dependent repositories 0
Total releases 5
Latest release
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Repo Size: 49.8 KB

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