관리-도구

편집 파일: TextNormalizer.php

<?php /* * This file is part of the league/commonmark package. * * (c) Colin O'Dell <colinodell@gmail.com> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ declare(strict_types=1); namespace League\CommonMark\Normalizer; /*** * Normalize text input using the steps given by the CommonMark spec to normalize labels * * @see https://spec.commonmark.org/0.29/#matches * * @psalm-immutable */ final class TextNormalizer implements TextNormalizerInterface { /** * {@inheritDoc} * * @psalm-pure */ public function normalize(string $text, array $context = []): string { // Collapse internal whitespace to single space and remove // leading/trailing whitespace $text = \preg_replace('/[ \t\r\n]+/', ' ', \trim($text)); \assert(\is_string($text)); // Is it strictly ASCII? If so, we can use strtolower() instead (faster) if (\mb_check_encoding($text, 'ASCII')) { return \strtolower($text); } return \mb_convert_case($text, \MB_CASE_FOLD, 'UTF-8'); } }