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455 lines
23 KiB
455 lines
23 KiB
<?php
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/** @license MIT
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* Copyright 2017 , Dustin Wilson, J. King et al.
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* See LICENSE and AUTHORS files for details */
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declare(strict_types=1);
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namespace MensBeam\HTML\TestCase;
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use MensBeam\HTML\Data;
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use MensBeam\HTML\Document;
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use MensBeam\HTML\LoopException;
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use MensBeam\HTML\NotImplementedException;
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use MensBeam\HTML\OpenElementsStack;
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use MensBeam\HTML\ParseError;
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use MensBeam\HTML\Parser;
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use MensBeam\HTML\TemplateInsertionModesStack;
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use MensBeam\HTML\Tokenizer;
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use MensBeam\HTML\TreeBuilder;
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/**
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* @covers \MensBeam\HTML\Document
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* @covers \MensBeam\HTML\Element
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* @covers \MensBeam\HTML\Tokenizer
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* @covers \MensBeam\HTML\TreeBuilder
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* @covers \MensBeam\HTML\ActiveFormattingElementsList
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* @covers \MensBeam\HTML\TemplateInsertionModesStack
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* @covers \MensBeam\HTML\OpenElementsStack
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* @covers \MensBeam\HTML\Stack
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* @covers \MensBeam\HTML\TagToken
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*/
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class TestTreeConstructor extends \PHPUnit\Framework\TestCase {
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use \MensBeam\HTML\EscapeString;
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protected $out;
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protected $depth;
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/** @dataProvider provideStandardTreeTests */
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public function testStandardTreeTests(string $data, array $exp, array $errors, $fragment): void {
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// certain tests need to be patched to ignore unavoidable limitations of PHP's DOM
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[$exp, $errors, $patched, $skip] = $this->patchTest($data, $fragment, $errors, $exp);
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if (strlen($skip)) {
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$this->markTestSkipped($skip);
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} elseif ($patched) {
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$this->markAsRisky();
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}
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// convert parse error constants into standard symbols in specification
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$errorMap = array_map(function($str) {
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return strtolower(str_replace("_", "-", $str));
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}, array_flip(array_filter((new \ReflectionClass(ParseError::class))->getConstants(), function($v) {
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return is_int($v);
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})));
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// create a stub error handler which collects parse errors
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$actualErrors = [];
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$errorHandler = $this->createStub(ParseError::class);
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$errorHandler->method("emit")->willReturnCallback(function($file, $line, $col, $code) use (&$actualErrors, $errorMap) {
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$actualErrors[] = ['code' => $errorMap[$code], 'line' => $line, 'col' => $col];
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return true;
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});
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// initialize the output document
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$doc = new Document;
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// prepare the fragment context, if any
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if ($fragment) {
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$fragment = explode(" ", $fragment);
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assert(sizeof($fragment) < 3);
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if (sizeof($fragment) === 1) {
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$fragmentContext = $doc->createElement($fragment[0]);
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} else {
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$ns = array_flip(Parser::NAMESPACE_MAP)[$fragment[0]] ?? null;
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assert(isset($ns));
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$fragmentContext = $doc->createElementNS($ns, $fragment[1]);
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}
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} else {
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$fragmentContext = null;
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}
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// initialize the other classes we need
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$decoder = new Data($data, "STDIN", $errorHandler, "UTF-8");
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$stack = new OpenElementsStack($fragmentContext);
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$tokenizer = new Tokenizer($decoder, $stack, $errorHandler);
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$tokenList = $tokenizer->tokenize();
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$treeBuilder = new TreeBuilder($doc, $decoder, $tokenizer, $tokenList, $errorHandler, $stack, new TemplateInsertionModesStack, $fragmentContext);
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// run the tree builder
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try {
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$treeBuilder->constructTree();
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} catch (LoopException $e) {
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$act = $this->balanceTree($this->serializeTree($doc, (bool) $fragmentContext), $exp);
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$this->assertEquals($exp, $act, $e->getMessage()."\n".$treeBuilder->debugLog);
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throw $e;
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} catch (NotImplementedException $e) {
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$this->markTestSkipped($e->getMessage());
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return;
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}
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$act = $this->balanceTree($this->serializeTree($doc, (bool) $fragmentContext), $exp);
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$this->assertEquals($exp, $act, $treeBuilder->debugLog);
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if ($errors !== false) {
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// If $errors is false, the test does not include errors when there are in fact errors
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$this->assertCount(sizeof($errors), $actualErrors, var_export($errors, true).var_export($actualErrors, true));
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}
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}
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protected function patchTest(string $data, $fragment, array $errors, array $exp): array {
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$patched = false;
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$skip = "";
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// comments outside the root element are silently dropped by the PHP DOM
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if (!$fragment) {
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for ($a = 0; $a < sizeof($exp); $a++) {
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if (strpos($exp[$a], "| <!--") === 0) {
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array_splice($exp, $a--, 1);
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$patched = true;
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}
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}
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}
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// some tests don't document errors when they should
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if (!$errors && in_array($data, [
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// math.dat
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'<math><tr><td><mo><tr>',
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'<math><thead><mo><tbody>',
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'<math><tfoot><mo><tbody>',
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'<math><tbody><mo><tfoot>',
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'<math><tbody><mo></table>',
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'<math><thead><mo></table>',
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'<math><tfoot><mo></table>',
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// namespace-sensitivity.dat
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'<body><table><tr><td><svg><td><foreignObject><span></td>Foo',
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// svg.dat
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'<svg><tr><td><title><tr>',
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'<svg><thead><title><tbody>',
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'<svg><tfoot><title><tbody>',
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'<svg><tbody><title><tfoot>',
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'<svg><tbody><title></table>',
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'<svg><thead><title></table>',
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'<svg><tfoot><title></table>',
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// template.dat
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'<template><a><table><a>',
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// tests6.dat
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'<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN"><html></html>',
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// tests8.dat
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'<table><li><li></table>',
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// webkit01.dat
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'<table><tr><td><svg><desc><td></desc><circle>',
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// webkit02.dat
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'<legend>test</legend>',
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'<table><input>',
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'<b><em><foo><foo><aside></b>',
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'<b><em><foo><foo><aside></b></em>',
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'<b><em><foo><foo><foo><aside></b>',
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'<b><em><foo><foo><foo><aside></b></em>',
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'<b><em><foo><foo><foo><foo><foo><foo><foo><foo><foo><foo><aside></b></em>',
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'<b><em><foo><foob><foob><foob><foob><fooc><fooc><fooc><fooc><food><aside></b></em>',
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'<option><XH<optgroup></optgroup>',
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'<svg><foreignObject><div>foo</div><plaintext></foreignObject></svg><div>bar</div>',
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'<svg><foreignObject></foreignObject><title></svg>foo',
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'</foreignObject><plaintext><div>foo</div>',
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])) {
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$errors = false;
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}
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// other tests do list errors, but they are plainly incorrect in missing some
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if (in_array($data, [
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// doctype01.dat"
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"<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01//EN\"\n \"http://www.w3.org/TR/html4/strict.dtd\">Hello",
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'<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN""http://www.w3.org/TR/html4/strict.dtd">',
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'<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"\'http://www.w3.org/TR/html4/strict.dtd\'>',
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'<!DOCTYPE HTML PUBLIC"-//W3C//DTD HTML 4.01//EN"\'http://www.w3.org/TR/html4/strict.dtd\'>',
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"<!DOCTYPE HTML PUBLIC'-//W3C//DTD HTML 4.01//EN''http://www.w3.org/TR/html4/strict.dtd'>",
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// entities02.dat
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"<div>ZZ&prod=23</div>",
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"<div>ZZÆ=</div>",
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// foreign-fragment.dat
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"<body><foo>",
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"<p><foo>",
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"<p></p><foo>",
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// ruby.dat
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"<html><ruby>a<rtc>b<span></ruby></html>",
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// test1.dat
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"<!-----><font><div>hello<table>excite!<b>me!<th><i>please!</tr><!--X-->", // this one is pretty hairy with buffered characters
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])) {
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$errors = false;
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}
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if ($errors) {
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// some "old" errors are made redundant by "new" errors
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$obsoleteSymbolList = implode("|", [
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"illegal-codepoint-for-numeric-entity",
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"eof-in-attribute-value-double-quote",
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"non-void-element-with-trailing-solidus",
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"invalid-character-in-attribute-name",
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"attributes-in-end-tag",
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"expected-tag-name",
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"unexpected-character-after-solidus-in-tag",
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"expected-closing-tag-but-got-char",
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"eof-in-tag-name",
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"need-space-after-doctype",
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"expected-doctype-name-but-got-right-bracket",
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"expected-dashes-or-doctype",
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"expected-space-or-right-bracket-in-doctype",
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"unexpected-char-in-comment",
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"eof-in-comment-double-dash",
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"expected-named-entity",
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"named-entity-without-semicolon",
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"numeric-entity-without-semicolon",
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"expected-numeric-entity",
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"eof-in-attribute-name",
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"unexpected-eof-in-text-mode",
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"unexpected-EOF-after-solidus-in-tag",
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"expected-attribute-name-but-got-eof",
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"eof-in-script-in-script",
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"expected-script-data-but-got-eof",
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"unexpected-EOF-in-text-mode",
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"expected-tag-name-but-got-question-mark",
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"incorrect-comment",
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"self-closing-flag-on-end-tag",
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"invalid-codepoint",
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"invalid-codepoint-in-body",
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"invalid-codepoint-in-foreign-content",
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"end-table-tag-in-caption",
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"equals-in-unquoted-attribute-value",
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"eof-in-numeric-entity",
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"unexpected-char-in-doctype",
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"unexpected-end-of-doctype",
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"unexpected-dash-after-double-dash-in-comment",
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"unexpected-bang-after-double-dash-in-comment",
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]);
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for ($a = 0, $stop = sizeof($errors); $a < $stop; $a++) {
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if (preg_match("/^\(\d+,\d+\):? ($obsoleteSymbolList)$/", $errors[$a])) {
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// these errors are redundant with "new" errors
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unset($errors[$a]);
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}
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}
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$errors = array_values($errors);
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// some other errors appear to document implementation details
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// rather than what the specificatioon dictates, or are
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// simple duplicates
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for ($a = 0, $stop = sizeof($errors); $a < $stop; $a++) {
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if (
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preg_match("/^\(\d+,\d+\): unexpected-end-tag-in-special-element$/", $errors[$a])
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|| preg_match('/^\d+: Unclosed element “[^”]+”\.$/u', $errors[$a])
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|| ($data === '<!---x' && $errors[$a] === "(1:7) eof-in-comment")
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|| ($data === "<!DOCTYPE html><body><table><caption><math><mi>foo</mi><mi>bar</mi>baz</table><p>quux" && $errors[$a] === "(1,78) expected-one-end-tag-but-got-another")
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|| ($data === "<!DOCTYPE html><!-- XXX - XXX" && $errors[$a] === "(1,29): eof-in-comment")
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|| ($data === "<!DOCTYPE html><!-- X" && $errors[$a] === "(1,21): eof-in-comment")
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|| ($data === "<!doctype html><math></html>" && $errors[$a] === "(1,28): expected-one-end-tag-but-got-another")
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|| ($data === "</" && $errors[$a] === "(1,2): expected-closing-tag-but-got-eof")
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|| ($data === "<div foo=`bar`>" && $errors[$a] === "(1,14): unexpected-character-in-unquoted-attribute-value")
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|| (
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$errors[$a] === "51: Self-closing syntax (“/>”) used on a non-void HTML element. Ignoring the slash and treating as a start tag."
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&& (
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$data === "<b></b><mglyph/><i></i><malignmark/><u></u><mtext/>X"
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|| $data === "<b></b><mglyph/><i></i><malignmark/><u></u><mi/>X"
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|| $data === "<b></b><mglyph/><i></i><malignmark/><u></u><mo/>X"
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|| $data === "<b></b><mglyph/><i></i><malignmark/><u></u><mn/>X"
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|| $data === "<b></b><mglyph/><i></i><malignmark/><u></u><ms/>X"
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)
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)
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|| ($data === "&ammmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmp;" && $errors[$a] === "(1,950): unknown-named-character-reference")
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|| ($data === "&ammmp;" && $errors[$a] === "(1,7): unknown-named-character-reference")
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|| ($data === "FOO<!-- BAR -- <QUX> -- MUX -- >BAZ" && $errors[$a] === "(1,35): eof-in-comment")
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|| ($data === "FOO<!-- BAR -- >BAZ" && $errors[$a] === "(1,21): eof-in-comment")
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) {
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// these errors seems to simply be redundant
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unset($errors[$a]);
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}
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}
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$errors = array_values($errors);
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// other errors are spurious, or are for runs of character tokens
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for ($a = 0, $stop = sizeof($errors); $a < $stop; $a++) {
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if (preg_match("/^\((\d+),(\d+)\):? (foster-parenting-character(?:-in-table)?|unexpected-character-in-colgroup|unexpected-char-after-frameset|unexpected-char-in-frameset|expected-eof-but-got-char)$/", $errors[$a], $m1) && preg_match("/^\((\d+),(\d+)\):? $m1[3]$/", $errors[$a + 1] ?? "", $m2)) {
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// if the next error is also a character error at the next or same character position, this implies a run of characters where we only have one token
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// technically we should be reporting each one, so this is properly a FIXME
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if ($m1[1] == $m2[1] && ($m1[2] + 1 == $m2[2] || $m1[2] == $m2[2])) {
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unset($errors[$a]);
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$patched = true;
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}
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} elseif (preg_match("/^foster-parenting text /", $errors[$a]) && preg_match("/^foster-parenting text /", $errors[$a + 1] ?? "")) {
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// template tests have a different format of error message
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unset($errors[$a]);
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$patched = true;
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} elseif (preg_match("/^\((\d+,\d+)\):? unexpected-end-tag$/", $errors[$a], $m) && preg_match("/^\($m[1]\):? (unexpected-end-tag|end-tag-too-early|expected-one-end-tag-but-got-another|adoption-agency-1.3)$/", $errors[$a + 1] ?? "")) {
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// unexpected-end-tag errors should only be reported once for a given tag
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unset($errors[$a]);
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}
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}
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$errors = array_values($errors);
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}
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return [$exp, $errors, $patched, $skip];
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}
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protected function balanceTree(array $act, array $exp): array {
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// makes sure that the actual tree contain the same number of lines as the expected tree
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// lines are inserted where the two trees diverge, until the end of the actual tree is reached
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// this usually results in cleaner PHPUnit comparison failure output
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for ($a = 0; $a < sizeof($act) && sizeof($act) < sizeof($exp); $a++) {
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if (!isset($act[$a]) || $exp[$a] !== $act[$a]) {
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array_splice($act, $a, 0, [""]);
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}
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}
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return $act;
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}
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protected function push(string $data): void {
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$this->out[] = "| ".str_repeat(" ", $this->depth).$data;
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}
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protected function serializeTree(Document $d, bool $fragment): array {
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$this->out = [];
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$this->depth = 0;
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if ($fragment){
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foreach ($d->documentElement->childNodes as $n) {
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$this->serializeNode($n);
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}
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} else {
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if ($d->doctype) {
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$dt = "<!DOCTYPE ";
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$dt .= ($d->doctype->name !== " ") ? $d->doctype->name : "";
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if (strlen($d->doctype->publicId) || strlen($d->doctype->systemId)) {
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$dt .= ' "'.$d->doctype->publicId.'"';
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$dt .= ' "'.$d->doctype->systemId.'"';
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}
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$dt .= ">";
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$this->push($dt);
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}
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if ($d->documentElement) {
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$this->serializeElement($d->documentElement);
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}
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}
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return $this->out;
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}
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protected function serializeElement(\DOMElement $e): void {
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if ($e->namespaceURI) {
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$prefix = Parser::NAMESPACE_MAP[$e->namespaceURI];
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assert((bool) $prefix, new \Exception("Prefix for namespace {$e->namespaceURI} is not defined"));
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$prefix .= " ";
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} else {
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$prefix = "";
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}
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$localName = $this->uncoerceName($e->localName);
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$this->push("<".$prefix.$localName.">");
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$this->depth++;
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$attr = [];
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foreach ($e->attributes as $a) {
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$prefix = "";
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if ($a->namespaceURI) {
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$prefix = Parser::NAMESPACE_MAP[$a->namespaceURI];
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assert((bool) $prefix, new \Exception("Prefix for namespace {$a->namespaceURI} is not defined"));
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$prefix .= " ";
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}
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$attr[$prefix.$this->uncoerceName($a->name)] = $a->value;
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}
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ksort($attr, \SORT_STRING);
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foreach ($attr as $k => $v) {
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$this->push($k.'="'.$v.'"');
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}
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if ($e->localName === "template" && $e->namespaceURI === null) {
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$this->push("content");
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$this->depth++;
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foreach ($e->content->childNodes as $n) {
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$this->serializeNode($n);
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}
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$this->depth--;
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}
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foreach ($e->childNodes as $n) {
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$this->serializeNode($n);
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}
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$this->depth--;
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}
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protected function serializeNode(\DOMNode $n): void {
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if ($n instanceof \DOMElement) {
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$this->serializeElement($n);
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} elseif ($n instanceof \DOMProcessingInstruction) {
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$this->push("<?".$n->target." ".$n->data.">");
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} elseif ($n instanceof \DOMComment) {
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$this->push("<!-- ".$n->data." -->");
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} elseif ($n instanceof \DOMCharacterData) {
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$this->push('"'.$n->data.'"');
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} else {
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throw new \Exception("Node type ".get_class($n)." not handled");
|
|
}
|
|
}
|
|
|
|
public function provideStandardTreeTests(): iterable {
|
|
$blacklist = [];
|
|
$files = new \AppendIterator();
|
|
$files->append(new \GlobIterator(\MensBeam\HTML\BASE."tests/html5lib-tests/tree-construction/*.dat", \FilesystemIterator::SKIP_DOTS | \FilesystemIterator::CURRENT_AS_PATHNAME));
|
|
$files->append(new \GlobIterator(\MensBeam\HTML\BASE."tests/cases/tree-construction/*.dat", \FilesystemIterator::SKIP_DOTS | \FilesystemIterator::CURRENT_AS_PATHNAME));
|
|
foreach ($files as $file) {
|
|
$index = 0;
|
|
$l = 0;
|
|
if (!in_array(basename($file), $blacklist)) {
|
|
$lines = array_map(function($v) {
|
|
return rtrim($v, "\n");
|
|
}, file($file));
|
|
while ($l < sizeof($lines)) {
|
|
$pos = $l + 1;
|
|
assert($lines[$l] === "#data", new \Exception("Test $file #$index does not start with #data tag at line ".($l + 1)));
|
|
// collect the test input
|
|
$data = [];
|
|
for (++$l; $l < sizeof($lines); $l++) {
|
|
if ($lines[$l] === "#errors") {
|
|
break;
|
|
}
|
|
$data[] = $lines[$l];
|
|
}
|
|
$data = implode("\n", $data);
|
|
// collect the test errors
|
|
$errors = [];
|
|
assert(($lines[$l] ?? "") === "#errors", new \Exception("Test $file #$index does not list errors at line ".($l + 1)));
|
|
for (++$l; $l < sizeof($lines); $l++) {
|
|
if ($lines[$l] === "#new-errors") {
|
|
continue;
|
|
} elseif (preg_match('/^#(document(-fragment)?|script-(on|off)|)$/', $lines[$l])) {
|
|
break;
|
|
}
|
|
$errors[] = $lines[$l];
|
|
}
|
|
// set the script mode, if present
|
|
assert(preg_match('/^#(script-(on|off)|document(-fragment)?)$/', $lines[$l]) === 1, new \Exception("Test $file #$index follows errors with something other than script flag, document fragment, or document at line ".($l + 1)));
|
|
$script = null;
|
|
if ($lines[$l] === "#script-off") {
|
|
$script = false;
|
|
$l++;
|
|
} elseif ($lines[$l] === "#script-on") {
|
|
$script = true;
|
|
$l++;
|
|
}
|
|
// collect the document fragment, if present
|
|
assert(preg_match('/^#document(-fragment)?$/', $lines[$l]) === 1, new \Exception("Test $file #$index follows script flag with something other than document fragment or document at line ".($l + 1)));
|
|
$fragment = null;
|
|
if ($lines[$l] === "#document-fragment") {
|
|
$fragment = $lines[++$l];
|
|
$l++;
|
|
}
|
|
// collect the output tree
|
|
$exp = [];
|
|
assert($lines[$l] === "#document", new \Exception("Test $file #$index follows document fragment with something other than document at line ".($l + 1)));
|
|
for (++$l; $l < sizeof($lines); $l++) {
|
|
if ($lines[$l] === "" && ($lines[$l + 1] ?? "") === "#data") {
|
|
break;
|
|
} elseif (($lines[$l][0] ?? "") !== "|") {
|
|
// apend the data to the previous token
|
|
$exp[sizeof($exp) - 1] .= "\n".$lines[$l];
|
|
continue;
|
|
}
|
|
assert(preg_match('/^[^#]/', $lines[$l]) === 1, new \Exception("Test $file #$index contains unrecognized data after document at line ".($l + 1)));
|
|
$exp[] = $lines[$l];
|
|
}
|
|
if (!$script) {
|
|
// scripting-dependent tests are skipped entirely since we will not support scripting
|
|
yield basename($file)." #$index (line $pos)" => [$data, $exp, $errors, $fragment];
|
|
}
|
|
$l++;
|
|
$index++;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|