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<?php |
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declare(strict_types=1); |
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/** |
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* @license http://opensource.org/licenses/mit-license.php MIT |
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* @link https://github.com/nicoSWD |
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* @author Nicolas Oelgart <[email protected]> |
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*/ |
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namespace nicoSWD\Rules\Highlighter; |
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use nicoSWD\Rules\Tokenizer\Stack; |
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use nicoSWD\Rules\Tokenizer\TokenizerInterface; |
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use nicoSWD\Rules\Tokens\TokenType; |
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final class Highlighter |
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{ |
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/** @var string[] */ |
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private $styles = [ |
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TokenType::COMMENT => 'color: #948a8a; font-style: italic;', |
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TokenType::LOGICAL => 'color: #c72d2d;', |
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TokenType::OPERATOR => 'color: #000;', |
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TokenType::PARENTHESIS => 'color: #000;', |
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TokenType::SPACE => '', |
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TokenType::UNKNOWN => '', |
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TokenType::VALUE => 'color: #e36700; font-style: italic;', |
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TokenType::VARIABLE => 'color: #007694; font-weight: 900;', |
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TokenType::METHOD => 'color: #000', |
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TokenType::SQUARE_BRACKETS => '', |
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TokenType::COMMA => '' |
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]; |
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/** @var TokenizerInterface */ |
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private $tokenizer; |
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public function __construct(TokenizerInterface $tokenizer) |
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{ |
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$this->tokenizer = $tokenizer; |
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} |
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public function setStyle(int $group, string $style) |
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{ |
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if (!isset($this->styles[$group])) { |
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throw new Exception\InvalidGroupException( |
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'Invalid group' |
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); |
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} |
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$this->styles[$group] = (string) $style; |
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} |
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public function highlightString(string $string): string |
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{ |
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return $this->highlightTokens($this->tokenizer->tokenize($string)); |
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} |
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public function highlightTokens(Stack $tokens): string |
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{ |
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$string = ''; |
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foreach ($tokens as $token) { |
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if ($style = $this->styles[$token->getType()]) { |
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$value = htmlentities($token->getOriginalValue(), ENT_QUOTES, 'utf-8'); |
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$string .= '<span style="' . $style . '">' . $value . '</span>'; |
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} else { |
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$string .= $token->getOriginalValue(); |
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} |
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} |
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return '<pre><code>' . $string . '</code></pre>'; |
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} |
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} |
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nicoSWD /
php-rule-parser
