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1 | <?php |
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2 | |||
3 | /* |
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4 | * This file is part of the league/commonmark package. |
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5 | * |
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6 | * (c) Colin O'Dell <[email protected]> |
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7 | * |
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8 | * Original code based on the CommonMark JS reference parser (https://bitly.com/commonmark-js) |
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9 | * - (c) John MacFarlane |
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10 | * |
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11 | * For the full copyright and license information, please view the LICENSE |
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12 | * file that was distributed with this source code. |
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13 | */ |
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14 | |||
15 | namespace League\CommonMark; |
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16 | |||
17 | use League\CommonMark\Inline\AdjoiningTextCollapser; |
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18 | use League\CommonMark\Inline\Element\Text; |
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19 | use League\CommonMark\Node\Node; |
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20 | use League\CommonMark\Reference\ReferenceMap; |
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21 | |||
22 | class InlineParserEngine |
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23 | { |
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24 | protected $environment; |
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25 | |||
26 | 2037 | public function __construct(EnvironmentInterface $environment) |
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27 | { |
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28 | 2037 | $this->environment = $environment; |
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29 | 2037 | } |
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30 | |||
31 | /** |
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32 | * @param Node $container |
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33 | * @param ReferenceMap $referenceMap |
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34 | */ |
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35 | 1743 | public function parse(Node $container, ReferenceMap $referenceMap) |
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36 | { |
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37 | 1743 | $inlineParserContext = new InlineParserContext($container, $referenceMap); |
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38 | 1743 | while (($character = $inlineParserContext->getCursor()->getCharacter()) !== null) { |
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39 | 1740 | if (!$this->parseCharacter($character, $inlineParserContext)) { |
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40 | 1608 | $this->addPlainText($character, $container, $inlineParserContext); |
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41 | } |
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42 | } |
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43 | |||
44 | 1743 | $this->processInlines($inlineParserContext); |
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45 | |||
46 | 1743 | AdjoiningTextCollapser::collapseTextNodes($container); |
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47 | 1743 | } |
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48 | |||
49 | /** |
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50 | * @param string $character |
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51 | * @param InlineParserContext $inlineParserContext |
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52 | * |
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53 | * @return bool Whether we successfully parsed a character at that position |
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54 | */ |
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55 | 1740 | protected function parseCharacter(string $character, InlineParserContext $inlineParserContext): bool |
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56 | { |
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57 | 1740 | foreach ($this->environment->getInlineParsersForCharacter($character) as $parser) { |
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58 | 1317 | if ($parser->parse($inlineParserContext)) { |
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59 | 1295 | return true; |
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60 | } |
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61 | } |
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62 | |||
63 | 1608 | return false; |
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64 | } |
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65 | |||
66 | /** |
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67 | * @param InlineParserContext $inlineParserContext |
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68 | */ |
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69 | 1743 | protected function processInlines(InlineParserContext $inlineParserContext) |
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70 | { |
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71 | 1743 | $delimiterStack = $inlineParserContext->getDelimiterStack(); |
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72 | |||
73 | 1743 | foreach ($this->environment->getInlineProcessors() as $inlineProcessor) { |
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74 | 1743 | $inlineProcessor->processInlines($delimiterStack); |
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75 | } |
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76 | |||
77 | // Remove all delimiters |
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78 | 1743 | $delimiterStack->removeAll(); |
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79 | 1743 | } |
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80 | |||
81 | /** |
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82 | * @param string $character |
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83 | * @param Node $container |
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84 | * @param InlineParserContext $inlineParserContext |
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85 | */ |
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86 | 1608 | private function addPlainText(string $character, Node $container, InlineParserContext $inlineParserContext) |
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87 | { |
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88 | // We reach here if none of the parsers can handle the input |
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89 | // Attempt to match multiple non-special characters at once |
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90 | 1608 | $text = $inlineParserContext->getCursor()->match($this->environment->getInlineParserCharacterRegex()); |
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91 | // This might fail if we're currently at a special character which wasn't parsed; if so, just add that character |
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92 | 1608 | if ($text === null) { |
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93 | 192 | $inlineParserContext->getCursor()->advance(); |
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94 | 192 | $text = $character; |
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95 | } |
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96 | |||
97 | 1608 | $lastInline = $container->lastChild(); |
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98 | 1608 | if ($lastInline instanceof Text && !isset($lastInline->data['delim'])) { |
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99 | 237 | $lastInline->append($text); |
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100 | } else { |
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101 | 1572 | $container->appendChild(new Text($text)); |
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102 | } |
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103 | 1608 | } |
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104 | } |
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105 |
This check looks for parameters that are defined as one type in their type hint or doc comment but seem to be used as a narrower type, i.e an implementation of an interface or a subclass.
Consider changing the type of the parameter or doing an instanceof check before assuming your parameter is of the expected type.