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<?php |
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/* @description Transformation Style Sheets - Revolutionising PHP templating * |
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* @author Tom Butler [email protected] * |
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* @copyright 2017 Tom Butler <[email protected]> | https://r.je/ * |
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* @license http://www.opensource.org/licenses/bsd-license.php BSD License * |
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* @version 1.2 */ |
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namespace Transphporm\Parser\Tokenizer; |
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use \Transphporm\Parser\Tokenizer; |
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use \Transphporm\Parser\Tokens; |
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class Literals implements \Transphporm\Parser\Tokenizable { |
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public function tokenize(TokenizedString $str, Tokens $tokens) { |
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$char = $str->identifyChar(); |
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if ($char === Tokenizer::NAME) { |
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$name = $str->read(); |
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$j = 0; |
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while ($this->isLiteral($j+1, $str)) { |
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$name .= $str->read($j+1); |
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$j++; |
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} |
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$str->move($j); |
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$this->processLiterals($tokens, $name, $str); |
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} |
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} |
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private function isRealSubtract($n, $str) { |
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$n--; |
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// allow foo(2-5) |
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//but not data(foo2-5) |
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while (is_numeric($str->read($n))) { |
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$n--; |
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} |
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if ($n == 0) return false; |
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if (in_array($str->read($n), ['(', "\n", ' ', '['])) return true; |
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return false; |
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} |
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private function isLiteral($n, $str) { |
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//Is it a normal literal character |
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return ($str->has($n) && ($str->identifyChar($n, $str) === Tokenizer::NAME |
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//but a subtract can be part of a class name or a mathematical operation |
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|| $str->identifyChar($n) == Tokenizer::SUBTRACT && !$this->isRealSubtract($n, $str)) |
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); |
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} |
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private function processLiterals($tokens, $name, $str) { |
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if (is_numeric($name)) $tokens->add(['type' => Tokenizer::NUMERIC, 'value' => $name]); |
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else if (method_exists($this, $name)) $this->$name($tokens); |
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else $tokens->add(['type' => Tokenizer::NAME, 'value' => $name, 'line' => $str->lineNo()]); |
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} |
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private function true($tokens) { |
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$tokens->add(['type' => Tokenizer::BOOL, 'value' => true]); |
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} |
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private function false($tokens) { |
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$tokens->add(['type' => Tokenizer::BOOL, 'value' => false]); |
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} |
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private function in($tokens) { |
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$tokens->add(['type' => Tokenizer::IN, 'value' => 'in']); |
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} |
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} |
Level-2 /
Transphporm
