75 lines
1.6 KiB
PHP
75 lines
1.6 KiB
PHP
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<?php
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/**
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* PageTOC
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*
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* This plugin allows creation of Table of Contents + Link Anchors
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*
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* Based on the original version https://github.com/caseyamcl/toc
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* by Casey McLaughlin <caseyamcl@gmail.com>
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*
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* Licensed under MIT, see LICENSE.
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*/
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declare(strict_types=1);
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namespace Grav\Plugin\PageToc;
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use Cocur\Slugify\Slugify;
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use Cocur\Slugify\SlugifyInterface;
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/**
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* UniqueSluggify creates slugs from text without repeating the same slug twice per instance
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*/
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class UniqueSlugify implements SlugifyInterface
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{
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protected $slugify;
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protected $used;
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protected $options;
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/**
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* Constructor
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*
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* @param SlugifyInterface|null $slugify
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*/
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public function __construct()
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{
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$this->used = array();
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$this->slugify = new Slugify();
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}
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/**
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* Slugify
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*
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* @param string $text
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* @param array|null $options
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* @return string
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*/
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public function slugify($text, $options = null): string
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{
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$slugged = $this->slugify->slugify($text, $options);
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$maxlen = $options['maxlen'] ?? null;
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$prefix = $options['prefix'] ?? null;
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if (is_int($maxlen) && strlen($slugged) > $maxlen) {
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$slugged = substr($slugged, 0, $maxlen);
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}
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if (isset($prefix)) {
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$slugged = $prefix . $slugged;
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}
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$count = 1;
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$orig = $slugged;
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while (in_array($slugged, $this->used)) {
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$slugged = $orig . '-' . $count;
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$count++;
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}
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$this->used[] = $slugged;
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return $slugged;
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}
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}
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