1
0
mirror of https://github.com/danog/PHP-Parser.git synced 2024-12-13 18:07:32 +01:00
PHP-Parser/lib/PhpParser/Node/Scalar/String_.php

120 lines
3.0 KiB
PHP
Raw Normal View History

<?php
namespace PhpParser\Node\Scalar;
use PhpParser\Node\Scalar;
class String_ extends Scalar
{
/** @var string String value */
public $value;
protected static $replacements = array(
'\\' => '\\',
'$' => '$',
'n' => "\n",
'r' => "\r",
't' => "\t",
'f' => "\f",
'v' => "\v",
'e' => "\x1B",
);
/**
* Constructs a string scalar node.
*
* @param string $value Value of the string
* @param array $attributes Additional attributes
*/
public function __construct($value = '', array $attributes = array()) {
parent::__construct(null, $attributes);
$this->value = $value;
}
public function getSubNodeNames() {
return array('value');
}
/**
2014-09-30 20:23:25 +02:00
* @internal
*
* Parses a string token.
*
* @param string $str String token content
2011-06-01 22:37:10 +02:00
*
* @return string The parsed string
*/
public static function parse($str) {
$bLength = 0;
if ('b' === $str[0]) {
$bLength = 1;
}
if ('\'' === $str[$bLength]) {
return str_replace(
array('\\\\', '\\\''),
array( '\\', '\''),
substr($str, $bLength + 1, -1)
);
} else {
return self::parseEscapeSequences(substr($str, $bLength + 1, -1), '"');
}
}
/**
2014-09-30 20:23:25 +02:00
* @internal
*
* Parses escape sequences in strings (all string types apart from single quoted).
*
* @param string $str String without quotes
* @param null|string $quote Quote type
2011-06-01 22:37:10 +02:00
*
* @return string String with escape sequences parsed
*/
public static function parseEscapeSequences($str, $quote) {
if (null !== $quote) {
$str = str_replace('\\' . $quote, $quote, $str);
}
return preg_replace_callback(
'~\\\\([\\\\$nrtfve]|[xX][0-9a-fA-F]{1,2}|[0-7]{1,3})~',
array(__CLASS__, 'parseCallback'),
$str
);
}
2014-09-30 20:23:25 +02:00
private static function parseCallback($matches) {
$str = $matches[1];
if (isset(self::$replacements[$str])) {
return self::$replacements[$str];
} elseif ('x' === $str[0] || 'X' === $str[0]) {
return chr(hexdec($str));
} else {
return chr(octdec($str));
}
}
/**
2014-09-30 20:23:25 +02:00
* @internal
*
* Parses a constant doc string.
*
* @param string $startToken Doc string start token content (<<<SMTHG)
* @param string $str String token content
*
* @return string Parsed string
*/
public static function parseDocString($startToken, $str) {
// strip last newline (thanks tokenizer for sticking it into the string!)
$str = preg_replace('~(\r\n|\n|\r)$~', '', $str);
// nowdoc string
if (false !== strpos($startToken, '\'')) {
return $str;
}
return self::parseEscapeSequences($str, null);
}
}