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<?php |
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/** |
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* (c) Steve Nebes <[email protected]> |
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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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declare(strict_types=1); |
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namespace DaisyDiff; |
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use DaisyDiff\Html\Ancestor\ChangeText; |
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use DaisyDiff\Html\DelegatingContentHandler; |
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use DaisyDiff\Html\Dom\DomTreeBuilder; |
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use DaisyDiff\Html\HtmlDiffer; |
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use DaisyDiff\Html\HtmlSaxDiffOutput; |
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use DaisyDiff\Html\TextNodeComparator; |
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use DaisyDiff\Tag\TagComparator; |
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use DaisyDiff\Tag\TagDiffer; |
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use DaisyDiff\Tag\TagSaxDiffOutput; |
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use DaisyDiff\Xml\XMLReader; |
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use Exception; |
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/** |
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* Daisy Diff is a library that diffs (compares) HTML. |
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*/ |
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class DaisyDiff |
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{ |
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/** |
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* Diffs two HTML strings, returning the result. |
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* |
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* @param string $oldSource |
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* @param string $newSource |
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* @return string |
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* @throws Exception |
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*/ |
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public function diff(string $oldSource, string $newSource): string |
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{ |
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// Parse $old XML. |
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$oldHandler = new DomTreeBuilder(); |
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$reader1 = new XMLReader($oldHandler); |
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$reader1->parse($oldSource); |
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// Parse $new XML. |
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$newHandler = new DomTreeBuilder(); |
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$reader2 = new XMLReader($newHandler); |
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$reader2->parse($newSource); |
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// Comparators. |
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$leftComparator = new TextNodeComparator($oldHandler); |
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$rightComparator = new TextNodeComparator($newHandler); |
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$content = new ChangeText(); |
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$handler = new DelegatingContentHandler($content); |
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$output = new HtmlSaxDiffOutput($handler, 'diff'); |
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$differ = new HtmlDiffer($output); |
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$differ->diff($leftComparator, $rightComparator); |
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return strval($content); |
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} |
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/** |
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* Diffs two HTML strings for word as source, returning the result. |
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* |
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* @param string $oldText |
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* @param string $newText |
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* @return string |
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* @throws Exception |
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*/ |
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public function diffTag(string $oldText, string $newText): string |
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{ |
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$oldComp = new TagComparator($oldText); |
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$newComp = new TagComparator($newText); |
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$content = new ChangeText(); |
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$handler = new DelegatingContentHandler($content); |
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$output = new TagSaxDiffOutput($handler); |
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$differ = new TagDiffer($output); |
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$differ->diff($oldComp, $newComp); |
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return strval($content); |
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} |
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} |
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snebes /
php-daisydiff
