38 lines
990 B
PHP
38 lines
990 B
PHP
<?php
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declare(strict_types=1);
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/*
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* This file is part of the league/commonmark package.
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*
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* (c) Colin O'Dell <colinodell@gmail.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace League\CommonMark\Normalizer;
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/**
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* Creates URL-friendly strings based on the given string input
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*/
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final class SlugNormalizer implements TextNormalizerInterface
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{
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/**
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* {@inheritdoc}
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*/
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public function normalize(string $text, $context = null): string
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{
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// Trim whitespace
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$slug = \trim($text);
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// Convert to lowercase
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$slug = \mb_strtolower($slug);
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// Try replacing whitespace with a dash
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$slug = \preg_replace('/\s+/u', '-', $slug) ?? $slug;
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// Try removing characters other than letters, numbers, and marks.
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$slug = \preg_replace('/[^\p{L}\p{Nd}\p{Nl}\p{M}-]+/u', '', $slug) ?? $slug;
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return $slug;
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}
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}
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