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CSel-Examples-0.001
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/ CSel::Examples

NAME

CSel::Examples - CSel examples

VERSION

This document describes version 0.001 of CSel::Examples (from Perl distribution CSel-Examples), released on 2016-09-01.

EXAMPLES

Examples against object trees

Examples against regular data structures

The CSel expressions given below will work if you use it with Data::CSel::WrapStruct or the CLI's jsonsel or yamlsel or ddsel.

Given this data structure:

[
    [1,2,3,4,5,6,7,8,9,10],
    [11,12,13,14,15,16,17,18,19,20],
    [21,22,23,24,25,26,27,28,29,30],
    [31,32,33,34,35,36,37,38,39,40],
    [41,42,43,44,45,46,47,48,49,50],
    [51,52,53,54,55,56,57,58,59,60],
    [61,62,63,64,65,66,67,68,69,70],
    [71,72,73,74,75,76,77,78,79,80],
    [81,82,83,84,85,86,87,88,89,90],
    [91,92,93,94,95,96,97,98,99,100]
]

This expression:

Scalar[value>95]

will give this result:

96
97
98
99
100

This expression:

Scalar[value>95][value<98]

will give this result:

96
97

This expression:

Array:has(Scalar[value >= 90])

will give this result:

[81,82,83,84,85,86,87,88,89,90]
[91,92,93,94,95,96,97,98,99,100]

Given this data structure:

{
  "store" : {
     "bicycle" : [
        {
           "color" : "red",
           "price" : 19.95
        }
     ],
     "book" : [
        {
           "category" : "reference",
           "author" : "Nigel Rees",
           "title" : "Sayings of the Century",
           "price" : 8.95
        },
        {
           "category" : "fiction",
           "author" : "Evelyn Waugh",
           "title" : "Sword of Honour",
           "price" : 12.99
        },
        {
           "category" : "fiction",
           "author" : "Herman Melville",
           "title" : "Moby Dick",
           "isbn" : "0-553-21311-3",
           "price" : 8.99
        },
        {
           "category" : "fiction",
           "author" : "J. R. R. Tolkien",
           "title" : "The Lord of the Rings",
           "isbn" : "0-395-19395-8",
           "price" : 22.99
        }
     ]
  }
}

This expression:

Hash[has_key("color")]

will give this result:

{"color":"red", "price":19.95}

HOMEPAGE

Please visit the project's homepage at https://metacpan.org/release/CSel-Examples.

SOURCE

Source repository is at https://github.com/perlancar/perl-CSel-Examples.

BUGS

Please report any bugs or feature requests on the bugtracker website https://rt.cpan.org/Public/Dist/Display.html?Name=CSel-Examples

When submitting a bug or request, please include a test-file or a patch to an existing test-file that illustrates the bug or desired feature.

SEE ALSO

Data::CSel

AUTHOR

perlancar <perlancar@cpan.org>

COPYRIGHT AND LICENSE

This software is copyright (c) 2016 by perlancar@cpan.org.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.