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<?php
/**
* Squiz_Sniffs_Strings_DoubleQuoteUsageSniff.
*
* PHP version 5
*
* @category PHP
* @package PHP_CodeSniffer
* @author Greg Sherwood <gsherwood@squiz.net>
* @author Marc McIntyre <mmcintyre@squiz.net>
* @copyright 2006 Squiz Pty Ltd (ABN 77 084 670 600)
* @license http://matrix.squiz.net/developer/tools/php_cs/licence BSD Licence
* @version CVS: $Id: DoubleQuoteUsageSniff.php,v 1.5 2008/03/20 03:42:35 squiz Exp $
* @link http://pear.php.net/package/PHP_CodeSniffer
*/
/**
* Squiz_Sniffs_Strings_DoubleQuoteUsageSniff.
*
* Makes sure that any use of Double Quotes ("") are warranted.
*
* @category PHP
* @package PHP_CodeSniffer
* @author Greg Sherwood <gsherwood@squiz.net>
* @author Marc McIntyre <mmcintyre@squiz.net>
* @copyright 2006 Squiz Pty Ltd (ABN 77 084 670 600)
* @license http://matrix.squiz.net/developer/tools/php_cs/licence BSD Licence
* @version Release: 1.1.0
* @link http://pear.php.net/package/PHP_CodeSniffer
*/
class Toba_Sniffs_Strings_DoubleQuoteUsageSniff implements PHP_CodeSniffer_Sniff
{
/**
* Returns an array of tokens this test wants to listen for.
*
* @return array
*/
public function register()
{
return array(
T_CONSTANT_ENCAPSED_STRING,
);
}//end register()
/**
* Processes this test, when one of its tokens is encountered.
*
* @param PHP_CodeSniffer_File $phpcsFile The file being scanned.
* @param int $stackPtr The position of the current token in the
* stack passed in $tokens.
*
* @return void
*/
public function process(PHP_CodeSniffer_File $phpcsFile, $stackPtr)
{
$tokens = $phpcsFile->getTokens();
$workingString = $tokens[$stackPtr]['content'];
// Check if it's a double quoted string.
if (strpos($workingString, '"') === false) {
return;
}
// Make sure it's not a part of a string started above.
// If it is, then we have already checked it.
if ($workingString[0] !== '"') {
return;
}
// Work through the following tokens, in case this string is stretched
// over multiple Lines.
for ($i = ($stackPtr + 1); $i < $phpcsFile->numTokens; $i++) {
if ($tokens[$i]['type'] !== 'T_CONSTANT_ENCAPSED_STRING') {
break;
}
$workingString .= $tokens[$i]['content'];
}
$allowedChars = array(
'\n',
'\r',
'\f',
'\t',
'\v',
'\x',
'\'',
);
foreach ($allowedChars as $testChar) {
if (strpos($workingString, $testChar) !== false) {
return;
}
}
$error = "[Expresiones#strings] String does not require double quotes; use single quotes instead";
$phpcsFile->addWarning($error, $stackPtr);
}//end process()
}//end class
?>
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