/build/phpcs/Joomla/Sniffs/WhiteSpace/SuperfluousWhitespaceSniff.php
PHP | 258 lines | 142 code | 23 blank | 93 comment | 38 complexity | 48a693c7020391f817313f632121662d MD5 | raw file
Possible License(s): GPL-2.0, LGPL-2.1
- <?php
- /**
- * Squiz_Sniffs_WhiteSpace_SuperfluousWhitespaceSniff.
- *
- * 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: SuperfluousWhitespaceSniff.php 509 2011-08-30 02:21:56Z elkuku $
- * @link http://pear.php.net/package/PHP_CodeSniffer
- */
- /**
- * Checks for whitespace.
- *
- * Checks that.
- * <ul>
- * <li>No whitespace proceeds the first content of the file.</li>
- * <li>No whitespace resides after content on any line.</li>
- * <li>There are not two or more empty lines in functions and classes.</li>
- * <li>There is a exactly one empty line after the last content of the file.</li>
- * </ul>
- *
- * @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: 1.2.2
- * @link http://pear.php.net/package/PHP_CodeSniffer
- */
- class Joomla_Sniffs_WhiteSpace_SuperfluousWhitespaceSniff implements PHP_CodeSniffer_Sniff
- {
- /**
- * A list of tokenizers this sniff supports.
- *
- * @var array
- */
- public $supportedTokenizers = array(
- 'PHP',
- 'JS',
- 'CSS',
- );
- /**
- * Returns an array of tokens this test wants to listen for.
- *
- * @return array
- */
- public function register()
- {
- return array(
- T_OPEN_TAG,
- T_CLOSE_TAG,
- T_WHITESPACE,
- T_COMMENT,
- T_CLOSE_CURLY_BRACKET,
- );
- }//function
- /**
- * Processes this sniff, when one of its tokens is encountered.
- *
- * @param PHP_CodeSniffer_File $phpcsFile The file being scanned.
- * @param integer $stackPtr The position of the current token in the stack passed in $tokens.
- *
- * @return void
- */
- public function process(PHP_CodeSniffer_File $phpcsFile, $stackPtr)
- {
- $tokens = $phpcsFile->getTokens();
- if($stackPtr == $phpcsFile->numTokens - 1)
- {
- //-- We reached the end of the file - without a closing tag
- if($tokens[$stackPtr]['code'] == T_WHITESPACE)
- {
- $lastCode = $tokens[$stackPtr - 1]['code'];
- if($lastCode != T_CLOSE_CURLY_BRACKET
- && $lastCode !== T_SEMICOLON)
- {
- //-- If the second last is not a curly bracket or a semicolon
- $phpcsFile->addError('Additional whitespace found at end of file', $stackPtr);
- }
- }
- else if(strpos($tokens[$stackPtr]['content'], $phpcsFile->eolChar) === false)
- {
- //-- Files must end with an empty line
- $phpcsFile->addError('Please end your files with an empty line.', $stackPtr);
- }
- }
- if($tokens[$stackPtr]['code'] === T_OPEN_TAG)
- {
- /*
- Check for start of file whitespace.
- */
- if($phpcsFile->tokenizerType !== 'PHP')
- {
- // The first token is always the open tag inserted when tokenizsed
- // and the second token is always the first piece of content in
- // the file. If the second token is whitespace, there was
- // whitespace at the start of the file.
- if($tokens[($stackPtr + 1)]['code'] !== T_WHITESPACE)
- {
- return;
- }
- }
- else
- {
- // If its the first token, then there is no space.
- if($stackPtr === 0)
- {
- return;
- }
- for($i = ($stackPtr - 1); $i >= 0; $i--)
- {
- // If we find something that isn't inline html
- // then there is something previous in the file.
- if($tokens[$i]['type'] !== 'T_INLINE_HTML')
- {
- return;
- }
- // If we have ended up with inline html make sure it isn't just whitespace.
- $tokenContent = trim($tokens[$i]['content']);
- if($tokenContent !== '')
- {
- return;
- }
- }//for
- }//end if
- $phpcsFile->addError('Additional whitespace found at start of file', $stackPtr);
- }
- else if($phpcsFile->numTokens == ($stackPtr - 1))
- {
- //-- Wereached the end of the file - without a closing tag
- die('BB');
- }
- else if($tokens[$stackPtr]['code'] === T_CLOSE_TAG)
- {
- /*
- Check for end of file whitespace.
- */
- if($phpcsFile->tokenizerType === 'JS')
- {
- // The last token is always the close tag inserted when tokenizsed
- // and the second last token is always the last piece of content in
- // the file. If the second last token is whitespace, there was
- // whitespace at the end of the file.
- if($tokens[($stackPtr - 1)]['code'] !== T_WHITESPACE)
- {
- return;
- }
- }
- else if($phpcsFile->tokenizerType === 'CSS')
- {
- // The last two tokens are always the close tag and whitespace
- // inserted when tokenizsed and the third last token is always the
- // last piece of content in the file. If the third last token is
- // whitespace, there was whitespace at the end of the file.
- if($tokens[($stackPtr - 3)]['code'] !== T_WHITESPACE)
- {
- return;
- }
- // Adjust the pointer to give the correct line number for the error.
- $stackPtr -= 2;
- }
- else
- {
- if(isset($tokens[($stackPtr + 1)]) === false)
- {
- // The close PHP token is the last in the file.
- return;
- }
- for($i = ($stackPtr + 1); $i < $phpcsFile->numTokens; $i++)
- {
- // If we find something that isn't inline html then there
- // is more to the file.
- if($tokens[$i]['type'] !== 'T_INLINE_HTML')
- {
- return;
- }
- // If we have ended up with inline html make sure it
- // isn't just whitespace.
- $tokenContent = trim($tokens[$i]['content']);
- if(empty($tokenContent) === false)
- {
- return;
- }
- }//for
- }
- $phpcsFile->addError('Additional whitespace found at end of file', $stackPtr);
- }
- else
- {
- /*
- Check for end of line whitespace.
- */
- if(strpos($tokens[$stackPtr]['content'], $phpcsFile->eolChar) === false)
- {
- return;
- }
- $tokenContent = rtrim($tokens[$stackPtr]['content'], $phpcsFile->eolChar);
- if(empty($tokenContent) === false)
- {
- if(preg_match('|^.*\s+$|', $tokenContent) !== 0)
- {
- $phpcsFile->addError('Whitespace found at end of line', $stackPtr);
- }
- }
- /*
- Check for multiple blanks lines in a function or class.
- */
- if($phpcsFile->hasCondition($stackPtr, T_FUNCTION) === true
- || $phpcsFile->hasCondition($stackPtr, T_CLASS) === true)
- {
- if($tokens[($stackPtr - 1)]['line'] < $tokens[$stackPtr]['line']
- && $tokens[($stackPtr - 2)]['line'] === $tokens[($stackPtr - 1)]['line'])
- {
- // This is an empty line and the line before this one is not
- // empty, so this could be the start of a multiple empty
- // line block.
- $next = $phpcsFile->findNext(T_WHITESPACE, $stackPtr, null, true);
- $lines = $tokens[$next]['line'] - $tokens[$stackPtr]['line'];
- if($lines > 1)
- {
- $error = 'Functions and classes must not contain multiple empty lines in a row;'
- ." found $lines empty lines";
- $phpcsFile->addError($error, $stackPtr);
- }
- }
- }
- }//end if
- }//function
- }//class