Doctrine\Inflector\RulesetInflector

Complexity

Total Complexity

13

Size/Duplication

Total Lines	80
Duplicated Lines	0 %

Test Coverage

Coverage

100%

Importance

Changes

0

6 Methods

Rating	Name	Duplication	Size	Complexity
A	inflect()	0	7	2
A	addRules()	0	7	1
A	getIrregularRegex()	0	7	2
B	doInflect()	0	19	5
A	getUninflectedRegex()	0	7	2
A	__construct()	0	3	1

<?php

declare(strict_types=1);

namespace Doctrine\Inflector;

use Doctrine\Inflector\Rules\Ruleset;
use function array_keys;
use function implode;
use function preg_match;
use function preg_replace;
use function strtolower;
use function substr;

class RulesetInflector
{
    /** @var Ruleset */
    private $ruleset;

    /** @var string|null */
    private $irregularRegex;

    /** @var string|null */
    private $uninflectedRegex;

    /** @var string[] */
    private $wordInflectionCache = [];

    public function __construct(Ruleset $ruleset)
    {
        $this->ruleset = $ruleset;
    }

    /**
     * @param mixed[] $rules
     */
    public function addRules(array $rules) : void
    {
        $this->ruleset->addRules($rules);

        $this->irregularRegex      = null;
        $this->uninflectedRegex    = null;
        $this->wordInflectionCache = [];
    }

    public function inflect(string $word) : string
    {
        if (! isset($this->wordInflectionCache[$word])) {
            $this->wordInflectionCache[$word] = $this->doInflect($word);
        }

        return $this->wordInflectionCache[$word];
    }

    private function doInflect(string $word) : string
    {
        $irregular = $this->ruleset->getIrregular();

        if (preg_match('/(.*)\\b(' . $this->getIrregularRegex($irregular) . ')$/i', $word, $regs)) {
            return $regs[1] . $word[0] . substr($irregular[strtolower($regs[2])], 1);
        }

        if (preg_match('/^(' . $this->getUninflectedRegex() . ')$/i', $word, $regs)) {
            return $word;
        }

        foreach ($this->ruleset->getRules() as $rule => $replacement) {
            if (preg_match($rule, $word)) {
                return preg_replace($rule, $replacement, $word);
            }
        }

        return $word;
    }

    /**
     * @param string[] $irregular
     */
    private function getIrregularRegex(array $irregular) : string
    {
        if ($this->irregularRegex === null) {
            $this->irregularRegex = '(?:' . implode('|', array_keys($irregular)) . ')';
        }

        return $this->irregularRegex;
    }

    private function getUninflectedRegex() : string
    {
        if ($this->uninflectedRegex === null) {
            $this->uninflectedRegex = '(?:' . implode('|', $this->ruleset->getUninflected()) . ')';
        }

        return $this->uninflectedRegex;
    }
}