AbstractNGrams::doNgrams() - Code Metrics - drupol/phpngrams - Measure and Improve Code Quality continuously with Scrutinizer

AbstractNGrams::doNgrams() A
last analyzed 2019-07-24 06:46 UTC

↳ Parent: AbstractNGrams

Complexity

Conditions	4
Paths	8

Size

Total Lines	12
Code Lines	7

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	8
CRAP Score	4

Importance

Changes

Metric	Value
cc	4
eloc	7
c	0
b	0
f	0
nc	8
nop	3
dl	0
loc	12
rs	10
ccs	8
cts	8
cp	1
crap	4

<?php

declare(strict_types = 1);

namespace drupol\phpngrams;

use drupol\phpermutations\Iterators\NGrams;
.
|-- OtherDir
|   |-- Bar.php
|   `-- Foo.php
`-- SomeDir
    `-- Foo.php

/**
 * Class AbstractNGrams.
 */
abstract class AbstractNGrams implements NGramsInterface
{
    /**
     * {@inheritdoc}
     */
    public function frequency(\Generator $ngrams, array $subset)
    {
        $ngrams = iterator_to_array($ngrams);

        return \count(
            array_filter(
                $ngrams,
                static function ($n) use ($subset) {
                    return $n === $subset;
                }
            )
        ) / \count($ngrams);
    }

    /**
     * {@inheritdoc}
     */
    abstract public function ngrams(array $data, int $n = 1);

    /**
     * @param array $data
     * @param int $n
     * @param bool $cyclic
     *
     * @return bool|\Generator
     */
    protected function ngramsFactory(array $data, int $n, bool $cyclic)
    {
        foreach ($this->doNgrams($data, $n, $cyclic) as $item) {
            yield $item;
        }
    }

    /**
     * @param array $data
     * @param int $n
     * @param bool $cyclic
     *
     * @return \Generator
     */
    private function doNgrams(array $data, int $n, bool $cyclic)
    {
        $dataLength = \count($data);
        $n = $n > $dataLength ? $dataLength : $n;

        $ngrams = new NGrams($data, $n);

        $length = (false === $cyclic ? $dataLength - $n + 1 : $dataLength);

        for ($j = 0; $j < $length; ++$j) {
            yield \array_slice($ngrams->current(), 0, $n);
            $ngrams->rewind();
        }
    }
}


1		<?php
2
3		declare(strict_types = 1);
4
5		namespace drupol\phpngrams;
6
7		use drupol\phpermutations\Iterators\NGrams;
		0 ignored issues – show Bug introduced 2019-07-24 06:46 UTC by Report Bug Copy Issue Report This use statement conflicts with another class in this namespace, `drupol\phpngrams\NGrams`. Consider defining an alias. Let?s assume that you have a directory layout like this: . \|-- OtherDir \| \|-- Bar.php \| `-- Foo.php `-- SomeDir `-- Foo.php and let?s assume the following content of `Bar.php`: // Bar.php namespace OtherDir; use SomeDir\Foo; // This now conflicts the class OtherDir\Foo If both files `OtherDir/Foo.php` and `SomeDir/Foo.php` are loaded in the same runtime, you will see a PHP error such as the following: PHP Fatal error: Cannot use SomeDir\Foo as Foo because the name is already in use in OtherDir/Foo.php However, as `OtherDir/Foo.php` does not necessarily have to be loaded and the error is only triggered if it is loaded before `OtherDir/Bar.php`, this problem might go unnoticed for a while. In order to prevent this error from surfacing, you must import the namespace with a different alias: // Bar.php namespace OtherDir; use SomeDir\Foo as SomeDirFoo; // There is no conflict anymore. Loading history...
8
9		/**
10		* Class AbstractNGrams.
11		*/
12		abstract class AbstractNGrams implements NGramsInterface
13		{
14		/**
15		* {@inheritdoc}
16		*/
17	1	public function frequency(\Generator $ngrams, array $subset)
18		{
19	1	$ngrams = iterator_to_array($ngrams);
20
21	1	return \count(
22	1	array_filter(
23	1	$ngrams,
24		static function ($n) use ($subset) {
25	1	return $n === $subset;
26	1	}
27		)
28	1	) / \count($ngrams);
29		}
30
31		/**
32		* {@inheritdoc}
33		*/
34		abstract public function ngrams(array $data, int $n = 1);
35
36		/**
37		* @param array $data
38		* @param int $n
39		* @param bool $cyclic
40		*
41		* @return bool\|\Generator
42		*/
43	7	protected function ngramsFactory(array $data, int $n, bool $cyclic)
44		{
45	7	foreach ($this->doNgrams($data, $n, $cyclic) as $item) {
46	7	yield $item;
47		}
48	7	}
49
50		/**
51		* @param array $data
52		* @param int $n
53		* @param bool $cyclic
54		*
55		* @return \Generator
56		*/
57	7	private function doNgrams(array $data, int $n, bool $cyclic)
58		{
59	7	$dataLength = \count($data);
60	7	$n = $n > $dataLength ? $dataLength : $n;
61
62	7	$ngrams = new NGrams($data, $n);
63
64	7	$length = (false === $cyclic ? $dataLength - $n + 1 : $dataLength);
65
66	7	for ($j = 0; $j < $length; ++$j) {
67	7	yield \array_slice($ngrams->current(), 0, $n);
68	7	$ngrams->rewind();
69		}
70	7	}
71		}
72

drupol / phpngrams

AbstractNGrams::doNgrams() A last analyzed 2019-07-24 06:46 UTC

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AbstractNGrams::doNgrams() A
last analyzed 2019-07-24 06:46 UTC