Alternation::parse() - Code Metrics - johnnymast/rivescript-php - Measure and Improve Code Quality continuously with Scrutinizer

Alternation::parse() B
last analyzed 2022-01-19 19:12 UTC

↳ Parent: Alternation

Complexity

Conditions	8
Paths	4

Size

Total Lines	52
Code Lines	22

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
cc	8
eloc	22
c	1
b	0
f	0
nc	4
nop	2
dl	0
loc	52
rs	8.4444

How to fix Long Method

<?php
/*
 * This file is part of Rivescript-php
 *
 * (c) Johnny Mast <[email protected]>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Axiom\Rivescript\Cortex\Triggers;

use Axiom\Rivescript\Cortex\Input;
use Axiom\Rivescript\Traits\Regex;

/**
 * Alternation class
 *
 * The Alternation class determines if a provided trigger
 * is an Alternation.
 *
 * PHP version 7.4 and higher.
 *
 * @category Core
 * @package  Cortext\Triggers
 * @author   Johnny Mast <[email protected]>
 * @license  https://opensource.org/licenses/MIT MIT
 * @link     https://github.com/axiom-labs/rivescript-php
 * @since    0.4.0
 */
class Alternation extends Trigger
{
    use Regex;

    /**
     * The Regex pattern to find sets
     * in the trigger.
     *
     * Note: This pattern ignores the set if a @ character
     * is inside to make sure we don't confuse them with arrays.
     *
     * @var string
     */
    protected string $pattern = "/(\()(?!\@)(.+?=*)(\))/ui";

    /**
     * Parse the trigger.
     *
     * @return bool|string
     */
    public function parse(string $trigger, Input $input): bool
    {
        if ($this->matchesPattern($this->pattern, $trigger) === true) {
            $triggerString = $trigger;
            $matches = $this->getMatchesFromPattern($this->pattern, $triggerString);
            $sets = [];

            /**
             * Replace every "set" in the trigger to their index number
             * found in the string.
             *
             * Example:
             *
             * "I (am|love) a robot. I like (my|style)"
             *
             * Will be replaced with:
             *
             * "I {0} a robot. I like {1}"
             */
            foreach ($matches as $index => $match) {

                $set = explode("|", $match[2]);

                if (count($set) > 0) {
                    $triggerString = str_replace($match[0], "{{$index}}", $triggerString);
                    $sets [] = $set;
                }
            }

            $combinations = $this->getCombinations(...$sets);

            if (count($combinations) > 0) {
                $sentences = [];

                foreach ($combinations as $combination) {
                    $tmp = $triggerString;
                    foreach ($combination as $index => $string) {
                        $tmp = str_replace("{{$index}}", $string, $tmp);
                    }

                    $sentences [] = trim($tmp);
                }

                $result = array_filter($sentences, static function (string $sentence) use ($input) {
                    return (strtolower($sentence) === strtolower($input->source()));
                });

                if (count($result) > 0) {
                    return $input->source();

                }
            }
        }
        return false;
    }

    /**
     * Create a set of possible combinations for given arrays.
     *
     * Note: This function is taken from stackoverflow.com
     * first posted by Guilhermo Luna and later edited by user Amlette.
     *
     * @see https://stackoverflow.com/questions/8567082/how-to-generate-in-php-all-combinations-of-items-in-multiple-arrays/33259643#33259643
     *
     * @param array ...$arrays A set of arrays to combine.
     *
     * @return array|array[]
     *
     */
    private function getCombinations(array ...$arrays): array
    {
        $result = [[]];
        foreach ($arrays as $property => $property_values) {
            $tmp = [];
            foreach ($result as $result_item) {
                foreach ($property_values as $property_value) {
                    $tmp[] = array_merge($result_item, [$property => $property_value]);
                }
            }
            $result = $tmp;
        }
        return $result;
    }
}


1			<?php
2			/*
3			* This file is part of Rivescript-php
4			*
5			* (c) Johnny Mast <[email protected]>
6			*
7			* For the full copyright and license information, please view the LICENSE
8			* file that was distributed with this source code.
9			*/
10
11			namespace Axiom\Rivescript\Cortex\Triggers;
12
13			use Axiom\Rivescript\Cortex\Input;
14			use Axiom\Rivescript\Traits\Regex;
15
16			/**
17			* Alternation class
18			*
19			* The Alternation class determines if a provided trigger
20			* is an Alternation.
21			*
22			* PHP version 7.4 and higher.
23			*
24			* @category Core
25			* @package Cortext\Triggers
26			* @author Johnny Mast <[email protected]>
27			* @license https://opensource.org/licenses/MIT MIT
28			* @link https://github.com/axiom-labs/rivescript-php
29			* @since 0.4.0
30			*/
31			class Alternation extends Trigger
32			{
33			use Regex;
34
35			/**
36			* The Regex pattern to find sets
37			* in the trigger.
38			*
39			* Note: This pattern ignores the set if a @ character
40			* is inside to make sure we don't confuse them with arrays.
41			*
42			* @var string
43			*/
44			protected string $pattern = "/(\()(?!\@)(.+?=*)(\))/ui";
45
46			/**
47			* Parse the trigger.
48			*
49			* @return bool\|string
50			*/
51			public function parse(string $trigger, Input $input): bool
52			{
53			if ($this->matchesPattern($this->pattern, $trigger) === true) {
54			$triggerString = $trigger;
55			$matches = $this->getMatchesFromPattern($this->pattern, $triggerString);
56			$sets = [];
57
58			/**
59			* Replace every "set" in the trigger to their index number
60			* found in the string.
61			*
62			* Example:
63			*
64			* "I (am\|love) a robot. I like (my\|style)"
65			*
66			* Will be replaced with:
67			*
68			* "I {0} a robot. I like {1}"
69			*/
70			foreach ($matches as $index => $match) {
			0 ignored issues – show Bug introduced 2022-01-19 01:55 UTC by Report Bug Copy Issue Report The expression `$matches` of type `false` is not traversable. Loading history...
71			$set = explode("\|", $match[2]);
72
73			if (count($set) > 0) {
74			$triggerString = str_replace($match[0], "{{$index}}", $triggerString);
75			$sets [] = $set;
76			}
77			}
78
79			$combinations = $this->getCombinations(...$sets);
80
81			if (count($combinations) > 0) {
82			$sentences = [];
83
84			foreach ($combinations as $combination) {
85			$tmp = $triggerString;
86			foreach ($combination as $index => $string) {
87			$tmp = str_replace("{{$index}}", $string, $tmp);
88			}
89
90			$sentences [] = trim($tmp);
91			}
92
93			$result = array_filter($sentences, static function (string $sentence) use ($input) {
94			return (strtolower($sentence) === strtolower($input->source()));
95			});
96
97			if (count($result) > 0) {
98			return $input->source();
			0 ignored issues – show Bug Best Practice introduced 2022-01-19 01:55 UTC by Report Bug Copy Issue Report The expression `return $input->source()` returns the type `string` which is incompatible with the type-hinted return `boolean`. Loading history...
99			}
100			}
101			}
102			return false;
103			}
104
105			/**
106			* Create a set of possible combinations for given arrays.
107			*
108			* Note: This function is taken from stackoverflow.com
109			* first posted by Guilhermo Luna and later edited by user Amlette.
110			*
111			* @see https://stackoverflow.com/questions/8567082/how-to-generate-in-php-all-combinations-of-items-in-multiple-arrays/33259643#33259643
112			*
113			* @param array ...$arrays A set of arrays to combine.
114			*
115			* @return array\|array[]
116			*
117			*/
118			private function getCombinations(array ...$arrays): array
119			{
120			$result = [[]];
121			foreach ($arrays as $property => $property_values) {
122			$tmp = [];
123			foreach ($result as $result_item) {
124			foreach ($property_values as $property_value) {
125			$tmp[] = array_merge($result_item, [$property => $property_value]);
126			}
127			}
128			$result = $tmp;
129			}
130			return $result;
131			}
132			}
133

johnnymast / rivescript-php

Alternation::parse() B last analyzed 2022-01-19 19:12 UTC

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Alternation::parse() B
last analyzed 2022-01-19 19:12 UTC