109 lines
2.9 KiB
PHP
109 lines
2.9 KiB
PHP
<?php
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/**
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* @property string $value String value
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*/
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class PHPParser_Node_Scalar_String extends PHPParser_Node_Scalar
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{
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protected static $replacements = array(
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'\\' => '\\',
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'$' => '$',
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'n' => "\n",
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'r' => "\r",
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't' => "\t",
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'f' => "\f",
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'v' => "\v",
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'e' => "\x1B",
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);
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/**
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* Constructs a string scalar node.
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*
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* @param string $value Value of the string
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* @param array $attributes Additional attributes
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*/
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public function __construct($value = '', array $attributes = array()) {
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parent::__construct(
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array(
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'value' => $value
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),
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$attributes
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);
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}
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/**
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* Parses a string token.
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*
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* @param string $str String token content
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*
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* @return string The parsed string
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*/
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public static function parse($str) {
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$bLength = 0;
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if ('b' === $str[0]) {
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$bLength = 1;
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}
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if ('\'' === $str[$bLength]) {
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return str_replace(
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array('\\\\', '\\\''),
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array( '\\', '\''),
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substr($str, $bLength + 1, -1)
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);
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} else {
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return self::parseEscapeSequences(substr($str, $bLength + 1, -1), '"');
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}
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}
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/**
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* Parses escape sequences in strings (all string types apart from single quoted).
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*
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* @param string $str String without quotes
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* @param null|string $quote Quote type
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*
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* @return string String with escape sequences parsed
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*/
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public static function parseEscapeSequences($str, $quote) {
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if (null !== $quote) {
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$str = str_replace('\\' . $quote, $quote, $str);
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}
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return preg_replace_callback(
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'~\\\\([\\\\$nrtfve]|[xX][0-9a-fA-F]{1,2}|[0-7]{1,3})~',
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array(__CLASS__, 'parseCallback'),
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$str
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);
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}
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public static function parseCallback($matches) {
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$str = $matches[1];
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if (isset(self::$replacements[$str])) {
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return self::$replacements[$str];
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} elseif ('x' === $str[0] || 'X' === $str[0]) {
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return chr(hexdec($str));
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} else {
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return chr(octdec($str));
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}
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}
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/**
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* Parses a constant doc string.
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*
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* @param string $startToken Doc string start token content (<<<SMTHG)
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* @param string $str String token content
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*
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* @return string Parsed string
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*/
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public static function parseDocString($startToken, $str) {
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// strip last newline (thanks tokenizer for sticking it into the string!)
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$str = preg_replace('~(\r\n|\n|\r)$~', '', $str);
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// nowdoc string
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if (false !== strpos($startToken, '\'')) {
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return $str;
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}
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return self::parseEscapeSequences($str, null);
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}
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} |