Page MenuHomeDevCentral
Files F11722335

No OneTemporary
Actions

View Options

diff --git a/lists/RegexpFactory.php b/lists/RegexpFactory.php
index 4dd4e1b..a4692cf 100755
--- a/lists/RegexpFactory.php
+++ b/lists/RegexpFactory.php
@@ -1,109 +1,109 @@
<?php
/**
* Performs operation from given a regular expression
*/
class RegexpFactory {
/**
* The regular expression
* @var string
*/
public $expression;
/**
* The last error
* @var string
*/
public $lastError;
/**
* Initializes a new instance of the RegexpFactory object.
*
* @param string The regular expression
*/
function __construct ($expression) {
$this->expression = $expression;
}
/**
* Replaces an expression using regexp, a similar way Apache mod_rewrite and Nginx wreplace do.
*
* @param string $haystack The expression to perform a replacement on
* @param string $replaceExpression The format of the result string
* @return string The replaced string
*/
function replace ($haystack, $replaceExpression) {
return preg_replace($this->expression, $replaceExpression, $haystack);
}
/**
* Encloses the regular expression with delimiters.
*/
function addDelimiters () {
$delimiters = ['/', '@', '#', '~', '+', '%', '♦', 'µ', '±', '☞'];
//TODO: check if it's okay to use UTF-8 characters as delimiters
foreach ($delimiters as $delimiter) {
if (strpos($this->expression, $delimiter) === false) {
$this->expression = $delimiter . $this->expression . $delimiter;
return;
}
}
throw new Exception("Can't delimite regexp $this->expression");
}
/**
* Determines if the specified expression is valid.
*
* @return bool true if the expression is valid; otherwise, false.
*/
public function isValid () {
$this->lastError = '';
set_error_handler('self::handleErrors');
$result = preg_match($this->expression, null);
restore_error_handler();
if ($this->lastError === '' && $result === false) {
$this->lastError = self::getPCREError();
}
return $result !== false;
}
/**
* Callback for error handler
*
* @param int $errno he level of the error raised
* @param string $errstr the error message
* @return bool if false, the normal error handler continues
*/
private function handleErrors ($errno, $errstr) {
if ($errno == 2 && substr($errstr, 0, 14) == 'preg_match(): ') {
$this->lastError = substr($errstr, 14);
if (substr($this->lastError, 0, 20) == 'Compilation failed: ') {
$this->lastError = ucfirst(substr($this->lastError, 20));
}
return true;
}
message_die(
- GENERAL_ERROR,
- $errstr . "<p>Please report this bug. This error should be handled by the regexp factory.</p>",
- 'Regexp factory error'
+ GENERAL_ERROR,
+ $errstr . "<p>Please report this bug. This error should be handled by the regexp factory.</p>",
+ 'Regexp factory error'
);
}
/**
* Gets a string with an English error message matching the last PCRE error.
*
* @return The error message of the last PCRE library error.
*/
public static function getPCREError() {
$errors = array(
PREG_NO_ERROR => 'No error',
PREG_INTERNAL_ERROR => 'There was an internal PCRE error',
PREG_BACKTRACK_LIMIT_ERROR => 'Backtrack limit was exhausted',
PREG_RECURSION_LIMIT_ERROR => 'Recursion limit was exhausted',
PREG_BAD_UTF8_ERROR => 'The offset didn\'t correspond to the begin of a valid UTF-8 code point',
PREG_BAD_UTF8_OFFSET_ERROR => 'Malformed UTF-8 data',
);
return $errors[preg_last_error()];
}
}

File Metadata

Mime Type
text/x-diff
Expires
Thu, Sep 18, 02:07 (1 d, 21 h)
Storage Engine
blob
Storage Format
Raw Data
Storage Handle
2989803
Default Alt Text
(3 KB)

Event Timeline

Nasqueron DevCentral · If it had been much bigger the moon would have had a core of ice. · Powered by Phabricator