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https://github.com/moodle/moodle.git
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716 lines
29 KiB
PHP
716 lines
29 KiB
PHP
<?php
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/**
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* Parses and verifies the doc comments for files.
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*
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* PHP version 5
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*
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* @category PHP
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* @package PHP_CodeSniffer
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* @author Nicolas Connault <nicolasconnault@gmail.com>
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* @copyright 2009 Nicolas Connault
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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* @version CVS: $Id$
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* @link http://pear.php.net/package/PHP_CodeSniffer
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*/
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if (class_exists('PHP_CodeSniffer_CommentParser_ClassCommentParser', true) === false) {
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throw new PHP_CodeSniffer_Exception('Class PHP_CodeSniffer_CommentParser_ClassCommentParser not found');
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}
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/**
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* Parses and verifies the doc comments for files.
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*
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* Verifies that :
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* <ul>
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* <li>A doc comment exists.</li>
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* <li>There is a blank newline after the short description.</li>
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* <li>There is a blank newline between the long and short description.</li>
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* <li>There is a blank newline between the long description and tags.</li>
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* <li>A PHP version is specified.</li>
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* <li>Check the order of the tags.</li>
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* <li>Check the indentation of each tag.</li>
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* <li>Check required and optional tags and the format of their content.</li>
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* </ul>
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*
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* @category PHP
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* @package PHP_CodeSniffer
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* @author Nicolas Connault <nicolasconnault@gmail.com>
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* @copyright 2009 Nicolas Connault
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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* @version Release: 1.1.0
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* @link http://pear.php.net/package/PHP_CodeSniffer
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*/
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class Moodle_Sniffs_Commenting_FileCommentSniff implements PHP_CodeSniffer_Sniff
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{
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/**
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* The header comment parser for the current file.
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*
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* @var PHP_CodeSniffer_Comment_Parser_ClassCommentParser
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*/
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protected $commentParser = null;
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/**
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* The current PHP_CodeSniffer_File object we are processing.
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*
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* @var PHP_CodeSniffer_File
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*/
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protected $currentFile = null;
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/**
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* Tags in correct order and related info.
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*
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* @var array
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*/
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protected $tags = array(
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'category' => array(
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'required' => false,
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'allow_multiple' => false,
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'order_text' => 'precedes @package',
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),
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'package' => array(
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'required' => true,
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'allow_multiple' => false,
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'order_text' => 'follows @category',
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),
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'subpackage' => array(
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'required' => false,
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'allow_multiple' => false,
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'order_text' => 'follows @package',
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),
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'author' => array(
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'required' => false,
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'allow_multiple' => true,
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'order_text' => 'follows @subpackage (if used) or @package',
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),
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'copyright' => array(
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'required' => true,
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'allow_multiple' => true,
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'order_text' => 'follows @author',
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),
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'license' => array(
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'required' => true,
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'allow_multiple' => false,
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'order_text' => 'follows @copyright (if used) or @author',
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),
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'version' => array(
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'required' => false,
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'allow_multiple' => false,
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'order_text' => 'follows @licence',
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),
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'link' => array(
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'required' => false,
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'allow_multiple' => true,
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'order_text' => 'follows @version',
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),
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'see' => array(
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'required' => false,
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'allow_multiple' => true,
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'order_text' => 'follows @link',
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),
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'since' => array(
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'required' => false,
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'allow_multiple' => false,
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'order_text' => 'follows @see (if used) or @link',
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),
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'deprecated' => array(
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'required' => false,
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'allow_multiple' => false,
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'order_text' => 'follows @since (if used) or @see (if used) or @link',
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),
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);
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/**
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* Returns an array of tokens this test wants to listen for.
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*
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* @return array
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*/
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public function register()
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{
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return array(T_OPEN_TAG);
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}//end register()
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/**
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* Processes this test, when one of its tokens is encountered.
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*
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* @param PHP_CodeSniffer_File $phpcsFile The file being scanned.
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* @param int $stackPtr The position of the current token
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* in the stack passed in $tokens.
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*
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* @return void
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*/
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public function process(PHP_CodeSniffer_File $phpcsFile, $stackPtr)
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{
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$this->currentFile = $phpcsFile;
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// We are only interested if this is the first open tag.
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if ($stackPtr !== 0) {
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if ($phpcsFile->findPrevious(T_OPEN_TAG, ($stackPtr - 1)) !== false) {
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return;
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}
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}
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$tokens = $phpcsFile->getTokens();
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// Find the next non whitespace token.
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$commentStart = $phpcsFile->findNext(T_WHITESPACE, ($stackPtr + 1), null, true);
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// Look for $Id$ and boilerplate
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if ($tokens[$commentStart]['code'] != T_COMMENT) {
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$phpcsFile->addError('File must begin with License boilerplate', ($stackPtr + 1));
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return;
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} else if (preg_match('|\$Id\$|i', $tokens[$commentStart]['content'])) {
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$phpcsFile->addWarning('$Id$ tag is no longer required, please remove.', ($stackPtr + 1));
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return;
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}
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// now look for boilerplate, must be immediately after the first line
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$boilerplate = '// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.';
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$nextToken = $phpcsFile->findNext(T_WHITESPACE, ($stackPtr + 1), null, true);
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$boilerplate_lines = preg_split('/[\n\r]+/', $boilerplate);
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if (rtrim($tokens[$nextToken]['content']) != $boilerplate_lines[0]) {
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$phpcsFile->addError('You must include the Moodle boilerplate at the top of the file', ($nextToken));
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return;
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}
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$boilerplate_index = 0;
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foreach ($boilerplate_lines as $line) {
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$nextToken = $phpcsFile->findNext(T_COMMENT, ($nextToken));
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if (rtrim($tokens[$nextToken]['content']) != $boilerplate_lines[$boilerplate_index]) {
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$phpcsFile->addError('Badly formatted boilerplate. Please copy-paste exactly', ($nextToken));
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return;
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}
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$nextToken++;
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$boilerplate_index++;
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}
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$filedocToken = $phpcsFile->findNext(T_WHITESPACE, ($nextToken + 1), null, true);
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if ($tokens[$filedocToken]['code'] === T_CLOSE_TAG) {
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// We are only interested if this is the first open tag.
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return;
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} else if ($tokens[$filedocToken]['code'] === T_COMMENT) {
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$phpcsFile->addError('You must use "/**" style comments for a file comment', ($filedocToken + 1));
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return;
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} else if ($filedocToken === false || $tokens[$filedocToken]['code'] !== T_DOC_COMMENT) {
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$phpcsFile->addError('Missing file doc comment', ($filedocToken + 1));
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return;
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} else {
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// Extract the header comment docblock.
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$commentEnd = ($phpcsFile->findNext(T_DOC_COMMENT, ($filedocToken + 1), null, true) - 1);
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// Check if there is only 1 doc comment between the open tag and class token.
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$nextToken = array(
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T_ABSTRACT,
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T_CLASS,
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T_FUNCTION,
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T_DOC_COMMENT,
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);
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$commentNext = $phpcsFile->findNext($nextToken, ($commentEnd + 1));
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if ($commentNext !== false && $tokens[$commentNext]['code'] !== T_DOC_COMMENT) {
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// Found a class token right after comment doc block.
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$newlineToken = $phpcsFile->findNext(T_WHITESPACE, ($commentEnd + 1), $commentNext, false, $phpcsFile->eolChar);
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if ($newlineToken !== false) {
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$newlineToken = $phpcsFile->findNext(T_WHITESPACE, ($newlineToken + 1), $commentNext, false, $phpcsFile->eolChar);
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if ($newlineToken === false) {
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// No blank line between the class token and the doc block.
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// The doc block is most likely a class comment.
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$phpcsFile->addError('Missing file doc comment', ($stackPtr + 1));
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return;
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}
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}
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}
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$comment = $phpcsFile->getTokensAsString($filedocToken, ($commentEnd - $filedocToken + 1));
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// Parse the header comment docblock.
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try {
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$this->commentParser = new PHP_CodeSniffer_CommentParser_ClassCommentParser($comment, $phpcsFile);
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$this->commentParser->parse();
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} catch (PHP_CodeSniffer_CommentParser_ParserException $e) {
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$line = ($e->getLineWithinComment() + $filedocToken);
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$phpcsFile->addError($e->getMessage(), $line);
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return;
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}
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$comment = $this->commentParser->getComment();
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if (is_null($comment) === true) {
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$error = 'File doc comment is empty';
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$phpcsFile->addError($error, $filedocToken);
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return;
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}
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// No extra newline before short description.
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$short = $comment->getShortComment();
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$newlineCount = 0;
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$newlineSpan = strspn($short, $phpcsFile->eolChar);
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if ($short !== '' && $newlineSpan > 0) {
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$line = ($newlineSpan > 1) ? 'newlines' : 'newline';
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$error = "Extra $line found before file comment short description";
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$phpcsFile->addError($error, ($filedocToken + 1));
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}
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$newlineCount = (substr_count($short, $phpcsFile->eolChar) + 1);
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// Exactly one blank line between short and long description.
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$long = $comment->getLongComment();
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if (empty($long) === false) {
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$between = $comment->getWhiteSpaceBetween();
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$newlineBetween = substr_count($between, $phpcsFile->eolChar);
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if ($newlineBetween !== 2) {
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$error = 'There must be exactly one blank line between descriptions in file comment';
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$phpcsFile->addError($error, ($filedocToken + $newlineCount + 1));
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}
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$newlineCount += $newlineBetween;
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}
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// Exactly one blank line before tags.
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$tags = $this->commentParser->getTagOrders();
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if (count($tags) > 1) {
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$newlineSpan = $comment->getNewlineAfter();
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if ($newlineSpan !== 2) {
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$error = 'There must be exactly one blank line before the tags in file comment';
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if ($long !== '') {
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$newlineCount += (substr_count($long, $phpcsFile->eolChar) - $newlineSpan + 1);
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}
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$phpcsFile->addError($error, ($filedocToken + $newlineCount));
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$short = rtrim($short, $phpcsFile->eolChar.' ');
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}
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}
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// Check the PHP Version.
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/*
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if (strstr(strtolower($long), 'php version') === false) {
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$error = 'PHP version not specified';
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$phpcsFile->addWarning($error, $commentEnd);
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}
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*/
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// Check each tag.
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$this->processTags($filedocToken, $commentEnd);
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}//end if
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}//end process()
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/**
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* Processes each required or optional tag.
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*
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* @param int $commentStart The position in the stack where the comment started.
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* @param int $commentEnd The position in the stack where the comment ended.
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*
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* @return void
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*/
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protected function processTags($commentStart, $commentEnd)
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{
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$docBlock = (get_class($this) === 'Moodle_Sniffs_Commenting_FileCommentSniff') ? 'file' : 'class';
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$foundTags = $this->commentParser->getTagOrders();
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$orderIndex = 0;
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$indentation = array();
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$longestTag = 0;
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$errorPos = 0;
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foreach ($this->tags as $tag => $info) {
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// Required tag missing.
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if ($info['required'] === true && in_array($tag, $foundTags) === false) {
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$error = "Missing @$tag tag in $docBlock comment";
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$this->currentFile->addError($error, $commentEnd);
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continue;
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}
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// Get the line number for current tag.
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$tagName = ucfirst($tag);
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if ($info['allow_multiple'] === true) {
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$tagName .= 's';
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}
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$getMethod = 'get'.$tagName;
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$tagElement = $this->commentParser->$getMethod();
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if (is_null($tagElement) === true || empty($tagElement) === true) {
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continue;
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}
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$errorPos = $commentStart;
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if (is_array($tagElement) === false) {
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$errorPos = ($commentStart + $tagElement->getLine());
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}
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// Get the tag order.
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$foundIndexes = array_keys($foundTags, $tag);
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if (count($foundIndexes) > 1) {
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// Multiple occurance not allowed.
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if ($info['allow_multiple'] === false) {
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$error = "Only 1 @$tag tag is allowed in a $docBlock comment";
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$this->currentFile->addError($error, $errorPos);
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} else {
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// Make sure same tags are grouped together.
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$i = 0;
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$count = $foundIndexes[0];
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foreach ($foundIndexes as $index) {
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if ($index !== $count) {
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$errorPosIndex = ($errorPos + $tagElement[$i]->getLine());
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$error = "@$tag tags must be grouped together";
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$this->currentFile->addError($error, $errorPosIndex);
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}
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$i++;
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$count++;
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}
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}
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}//end if
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// Check tag order.
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if ($foundIndexes[0] > $orderIndex) {
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$orderIndex = $foundIndexes[0];
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} else {
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if (is_array($tagElement) === true && empty($tagElement) === false) {
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$errorPos += $tagElement[0]->getLine();
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}
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$orderText = $info['order_text'];
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$error = "The @$tag tag is in the wrong order; the tag $orderText";
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$this->currentFile->addError($error, $errorPos);
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}
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// Store the indentation for checking.
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$len = strlen($tag);
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if ($len > $longestTag) {
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$longestTag = $len;
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}
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if (is_array($tagElement) === true) {
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foreach ($tagElement as $key => $element) {
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$indentation[] = array(
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'tag' => $tag,
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'space' => $this->getIndentation($tag, $element),
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'line' => $element->getLine(),
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);
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}
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} else {
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$indentation[] = array(
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'tag' => $tag,
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'space' => $this->getIndentation($tag, $tagElement),
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);
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}
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$method = 'process'.$tagName;
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if (method_exists($this, $method) === true) {
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// Process each tag if a method is defined.
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call_user_func(array($this, $method), $errorPos);
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} else {
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if (is_array($tagElement) === true) {
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foreach ($tagElement as $key => $element) {
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$element->process($this->currentFile, $commentStart, $docBlock);
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}
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} else {
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$tagElement->process($this->currentFile, $commentStart, $docBlock);
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}
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}
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}//end foreach
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foreach ($indentation as $indentInfo) {
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if ($indentInfo['space'] !== 0 && $indentInfo['space'] !== ($longestTag + 1)) {
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$expected = (($longestTag - strlen($indentInfo['tag'])) + 1);
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$space = ($indentInfo['space'] - strlen($indentInfo['tag']));
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$error = "@$indentInfo[tag] tag comment indented incorrectly. ";
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$error .= "Expected $expected spaces but found $space.";
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$getTagMethod = 'get'.ucfirst($indentInfo['tag']);
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if ($this->tags[$indentInfo['tag']]['allow_multiple'] === true) {
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$line = $indentInfo['line'];
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} else {
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$tagElem = $this->commentParser->$getTagMethod();
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$line = $tagElem->getLine();
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}
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$this->currentFile->addError($error, ($commentStart + $line));
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}
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}
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}//end processTags()
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/**
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* Get the indentation information of each tag.
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*
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* @param string $tagName The name of the doc comment element.
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* @param PHP_CodeSniffer_CommentParser_DocElement $tagElement The doc comment element.
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*
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* @return void
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*/
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protected function getIndentation($tagName, $tagElement)
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{
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if ($tagElement instanceof PHP_CodeSniffer_CommentParser_SingleElement) {
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if ($tagElement->getContent() !== '') {
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return (strlen($tagName) + substr_count($tagElement->getWhitespaceBeforeContent(), ' '));
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}
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} else if ($tagElement instanceof PHP_CodeSniffer_CommentParser_PairElement) {
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if ($tagElement->getValue() !== '') {
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return (strlen($tagName) + substr_count($tagElement->getWhitespaceBeforeValue(), ' '));
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}
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}
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return 0;
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}//end getIndentation()
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/**
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* Process the category tag.
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*
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* @param int $errorPos The line number where the error occurs.
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*
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* @return void
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*/
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protected function processCategory($errorPos)
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{
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$category = $this->commentParser->getCategory();
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if ($category !== null) {
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$content = $category->getContent();
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if ($content !== '') {
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if (PHP_CodeSniffer::isUnderscoreName($content) !== true) {
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$newContent = str_replace(' ', '_', $content);
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$nameBits = explode('_', $newContent);
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$firstBit = array_shift($nameBits);
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$newName = ucfirst($firstBit).'_';
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foreach ($nameBits as $bit) {
|
|
$newName .= ucfirst($bit).'_';
|
|
}
|
|
|
|
$validName = trim($newName, '_');
|
|
$error = "Category name \"$content\" is not valid; consider \"$validName\" instead";
|
|
$this->currentFile->addError($error, $errorPos);
|
|
}
|
|
} else {
|
|
$error = '@category tag must contain a name';
|
|
$this->currentFile->addError($error, $errorPos);
|
|
}
|
|
}
|
|
|
|
}//end processCategory()
|
|
|
|
|
|
/**
|
|
* Process the package tag.
|
|
*
|
|
* @param int $errorPos The line number where the error occurs.
|
|
*
|
|
* @return void
|
|
*/
|
|
protected function processPackage($errorPos)
|
|
{
|
|
$package = $this->commentParser->getPackage();
|
|
if ($package !== null) {
|
|
$content = $package->getContent();
|
|
|
|
if ($content !== '') {
|
|
if (!preg_match('/^[a-z\-]*$/', $content)) {
|
|
$error = "Package name \"$content\" is not valid; must be lower-case with optional hyphens.";
|
|
$this->currentFile->addError($error, $errorPos);
|
|
}
|
|
} else {
|
|
$error = '@package tag must contain a name';
|
|
$this->currentFile->addError($error, $errorPos);
|
|
}
|
|
}
|
|
|
|
}//end processPackage()
|
|
|
|
|
|
/**
|
|
* Process the subpackage tag.
|
|
*
|
|
* @param int $errorPos The line number where the error occurs.
|
|
*
|
|
* @return void
|
|
*/
|
|
protected function processSubpackage($errorPos)
|
|
{
|
|
$package = $this->commentParser->getSubpackage();
|
|
if ($package !== null) {
|
|
$content = $package->getContent();
|
|
if ($content !== '') {
|
|
if (PHP_CodeSniffer::isUnderscoreName($content) !== true) {
|
|
$newContent = str_replace(' ', '_', $content);
|
|
$nameBits = explode('_', $newContent);
|
|
$firstBit = array_shift($nameBits);
|
|
$newName = strtoupper($firstBit{0}).substr($firstBit, 1).'_';
|
|
foreach ($nameBits as $bit) {
|
|
$newName .= strtoupper($bit{0}).substr($bit, 1).'_';
|
|
}
|
|
|
|
$validName = trim($newName, '_');
|
|
$error = "Subpackage name \"$content\" is not valid; consider \"$validName\" instead";
|
|
$this->currentFile->addError($error, $errorPos);
|
|
}
|
|
} else {
|
|
$error = '@subpackage tag must contain a name';
|
|
$this->currentFile->addError($error, $errorPos);
|
|
}
|
|
}
|
|
|
|
}//end processSubpackage()
|
|
|
|
|
|
/**
|
|
* Process the author tag(s) that this header comment has.
|
|
*
|
|
* This function is different from other _process functions
|
|
* as $authors is an array of SingleElements, so we work out
|
|
* the errorPos for each element separately
|
|
*
|
|
* @param int $commentStart The position in the stack where
|
|
* the comment started.
|
|
*
|
|
* @return void
|
|
*/
|
|
protected function processAuthors($commentStart)
|
|
{
|
|
$authors = $this->commentParser->getAuthors();
|
|
// Report missing return.
|
|
if (empty($authors) === false) {
|
|
foreach ($authors as $author) {
|
|
$errorPos = ($commentStart + $author->getLine());
|
|
$content = $author->getContent();
|
|
if ($content !== '') {
|
|
$local = '\da-zA-Z-_+';
|
|
// Dot character cannot be the first or last character in the local-part.
|
|
$localMiddle = $local.'.\w';
|
|
if (preg_match('/^([^<]*)\s+<(['.$local.']['.$localMiddle.']*['.$local.']@[\da-zA-Z][-.\w]*[\da-zA-Z]\.[a-zA-Z]{2,7})>$/', $content) === 0) {
|
|
$error = 'Content of the @author tag must be in the form "Display Name <username@example.com>"';
|
|
$this->currentFile->addError($error, $errorPos);
|
|
}
|
|
} else {
|
|
$docBlock = (get_class($this) === 'Moodle_Sniffs_Commenting_FileCommentSniff') ? 'file' : 'class';
|
|
$error = "Content missing for @author tag in $docBlock comment";
|
|
$this->currentFile->addError($error, $errorPos);
|
|
}
|
|
}
|
|
}
|
|
|
|
}//end processAuthors()
|
|
|
|
|
|
/**
|
|
* Process the copyright tags.
|
|
*
|
|
* @param int $commentStart The position in the stack where
|
|
* the comment started.
|
|
*
|
|
* @return void
|
|
*/
|
|
protected function processCopyrights($commentStart)
|
|
{
|
|
$copyrights = $this->commentParser->getCopyrights();
|
|
foreach ($copyrights as $copyright) {
|
|
$errorPos = ($commentStart + $copyright->getLine());
|
|
$content = $copyright->getContent();
|
|
if ($content !== '') {
|
|
$matches = array();
|
|
if (preg_match('/^([0-9]{4})((.{1})([0-9]{4}))? (.+)$/', $content, $matches) !== 0) {
|
|
// Check earliest-latest year order.
|
|
if ($matches[3] !== '') {
|
|
if ($matches[3] !== '-') {
|
|
$error = 'A hyphen must be used between the earliest and latest year';
|
|
$this->currentFile->addError($error, $errorPos);
|
|
}
|
|
|
|
if ($matches[4] !== '' && $matches[4] < $matches[1]) {
|
|
$error = "Invalid year span \"$matches[1]$matches[3]$matches[4]\" found; consider \"$matches[4]-$matches[1]\" instead";
|
|
$this->currentFile->addWarning($error, $errorPos);
|
|
}
|
|
}
|
|
} else {
|
|
$error = '@copyright tag must contain a year and the name of the copyright holder';
|
|
$this->currentFile->addError($error, $errorPos);
|
|
}
|
|
} else {
|
|
$error = '@copyright tag must contain a year and the name of the copyright holder';
|
|
$this->currentFile->addError($error, $errorPos);
|
|
}//end if
|
|
}//end if
|
|
|
|
}//end processCopyrights()
|
|
|
|
|
|
/**
|
|
* Process the license tag.
|
|
*
|
|
* @param int $errorPos The line number where the error occurs.
|
|
*
|
|
* @return void
|
|
*/
|
|
protected function processLicense($errorPos)
|
|
{
|
|
$license = $this->commentParser->getLicense();
|
|
if ($license !== null) {
|
|
$value = $license->getValue();
|
|
$comment = $license->getComment();
|
|
if ($value === '' || $comment === '') {
|
|
$error = '@license tag must contain a URL and a license name';
|
|
$this->currentFile->addError($error, $errorPos);
|
|
}
|
|
if ($comment != 'GNU GPL v3 or later') {
|
|
$this->currentFile->addError('License must be "GNU GPL v3 or later", found "'.$comment.'"', $errorPos);
|
|
}
|
|
if ($value != 'http://www.gnu.org/copyleft/gpl.html') {
|
|
$this->currentFile->addError('License must be "GNU GPL v3 or later"', $errorPos);
|
|
}
|
|
}
|
|
|
|
}//end processLicense()
|
|
|
|
|
|
/**
|
|
* Process the version tag.
|
|
*
|
|
* @param int $errorPos The line number where the error occurs.
|
|
*
|
|
* @return void
|
|
*/
|
|
protected function processVersion($errorPos)
|
|
{
|
|
$version = $this->commentParser->getVersion();
|
|
if ($version !== null) {
|
|
$content = $version->getContent();
|
|
$matches = array();
|
|
if (empty($content) === true) {
|
|
$error = 'Content missing for @version tag in file comment';
|
|
$this->currentFile->addError($error, $errorPos);
|
|
} else if (strstr($content, 'CVS:') === false && strstr($content, 'SVN:') === false) {
|
|
$error = "Invalid version \"$content\" in file comment; consider \"CVS: <cvs_id>\" or \"SVN: <svn_id>\" instead";
|
|
$this->currentFile->addWarning($error, $errorPos);
|
|
}
|
|
}
|
|
|
|
}//end processVersion()
|
|
|
|
|
|
}//end class
|
|
|
|
?>
|