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Diffstat (limited to 'plugins/Irc/extlib/phergie/Phergie/Plugin/Php/Source/Local.php')
| -rw-r--r-- | plugins/Irc/extlib/phergie/Phergie/Plugin/Php/Source/Local.php | 208 |
1 files changed, 208 insertions, 0 deletions
diff --git a/plugins/Irc/extlib/phergie/Phergie/Plugin/Php/Source/Local.php b/plugins/Irc/extlib/phergie/Phergie/Plugin/Php/Source/Local.php new file mode 100644 index 000000000..9292bea84 --- /dev/null +++ b/plugins/Irc/extlib/phergie/Phergie/Plugin/Php/Source/Local.php @@ -0,0 +1,208 @@ +<?php +/** + * Phergie + * + * PHP version 5 + * + * LICENSE + * + * This source file is subject to the new BSD license that is bundled + * with this package in the file LICENSE. + * It is also available through the world-wide-web at this URL: + * http://phergie.org/license + * + * @category Phergie + * @package Phergie_Plugin_Php + * @author Phergie Development Team <team@phergie.org> + * @copyright 2008-2010 Phergie Development Team (http://phergie.org) + * @license http://phergie.org/license New BSD License + * @link http://pear.phergie.org/package/Phergie_Plugin_Php + */ + +/** + * Data source for {@see Phergie_Plugin_Php}. This source reads function + * descriptions from a file and stores them in a SQLite database. When a + * function description is requested, the function is retrieved from the + * local database. + * + * @category Phergie + * @package Phergie_Plugin_Php + * @author Phergie Development Team <team@phergie.org> + * @license http://phergie.org/license New BSD License + * @link http://pear.phergie.org/package/Phergie_Plugin_Php + * @uses extension pdo + * @uses extension pdo_sqlite + * @uses Phergie_Plugin_Command pear.phergie.org + */ +class Phergie_Plugin_Php_Source_Local implements Phergie_Plugin_Php_Source +{ + /** + * Local database for storage + * + * @var PDO + */ + protected $database; + + /** + * Source of the PHP function summary + * + * @var string + */ + protected $url = 'http://cvs.php.net/viewvc.cgi/phpdoc/funcsummary.txt?revision=HEAD'; + + /** + * Constructor to initialize the data source. + * + * @return void + */ + public function __construct() + { + $path = dirname(__FILE__); + + try { + $this->database = new PDO('sqlite:' . $path . '/functions.db'); + $this->buildDatabase(); + // @todo Modify this to be rethrown as an appropriate + // Phergie_Plugin_Exception and handled in Phergie_Plugin_Php + } catch (PDOException $e) { + echo 'PDO failure: '.$e->getMessage(); + } + } + + /** + * Searches for a description of the function. + * + * @param string $function Search pattern to match against the function + * name, wildcards supported using % + * + * @return array|null Associative array containing the function name and + * description or NULL if no results are found + */ + public function findFunction($function) + { + // Remove possible parentheses + $split = preg_split('{\(|\)}', $function); + $function = (count($split)) ? array_shift($split) : $function; + + // Prepare the database statement + $stmt = $this->database->prepare('SELECT `name`, `description` FROM `functions` WHERE `name` LIKE :function'); + $stmt->execute(array(':function' => $function)); + + // Check the results + if (count($stmt) > 0) { + $result = $stmt->fetch(PDO::FETCH_ASSOC); + /** + * @todo add class and function URLS + * class methods: http://php.net/manual/en/classname.methodname.php + * functions: http://php.net/manual/en/function.functionname.php + * where '_' is replaced with '-' + */ + return $result; + } + + // No results found, return + return null; + } + + /** + * Build the database and parses the function summary file into it. + * + * @param bool $rebuild TRUE to force a rebuild of the table used to + * house function information, FALSE otherwise, defaults to FALSE + * + * @return void + */ + protected function buildDatabase($rebuild = false) + { + // Check to see if the functions table exists + $checkstmt = $this->database->query("SELECT COUNT(*) FROM `sqlite_master` WHERE `name` = 'functions'"); + $checkstmt->execute(); + $result = $checkstmt->fetch(PDO::FETCH_ASSOC); + unset( $checkstmt ); + $table = $result['COUNT(*)']; + unset( $result ); + // If the table doesn't exist, create it + if (!$table) { + $this->database->exec('CREATE TABLE `functions` (`name` VARCHAR(255), `description` TEXT)'); + $this->database->exec('CREATE UNIQUE INDEX `functions_name` ON `functions` (`name`)'); + } + + // If we created a new table, fill it with data + if (!$table || $rebuild) { + // Get the contents of the source file + // @todo Handle possible error cases better here; the @ operator + // shouldn't be needed + $contents = @file($this->url, FILE_IGNORE_NEW_LINES + FILE_SKIP_EMPTY_LINES); + + if (!$contents) { + return; + } + + // Parse the contents + $valid = array(); + $firstPart = ''; + $lineNumber = 0; + foreach ($contents as $line) { + // Clean the current line + $line = trim($line); + + // Skip comment lines + if (0 === strpos($line, '#')) { + // reset the line if the current line is odd + if (($lineNumber % 2) !== 0) { + $lineNumber--; + } + continue; + } + + /* + * If the current line is even, it's the first part of the + * complete function description ... + */ + if (($lineNumber % 2) === 0) { + $firstPart = $line; + } else { + // ... it's the last part of the complete function description + $completeLine = $firstPart . ' ' . $line; + $firstPart = ''; + if (preg_match('{^([^\s]*)[\s]?([^)]*)\(([^\)]*)\)[\sU]+([\sa-zA-Z0-9\.,\-_()]*)$}', $completeLine, $matches)) { + $valid[] = $matches; + } + } + // Up the line number before going to the next line + $lineNumber++; + } + // free up some memory + unset($contents); + + // Process the valid matches + if (count($valid) > 0) { + // Clear the database + $this->database->exec('DELETE * FROM `functions`'); + + // Prepare the sql statement + $stmt = $this->database->prepare('INSERT INTO `functions` (`name`, `description`) VALUES (:name, :description)'); + $this->database->beginTransaction(); + + // Insert the data + foreach ($valid as $function) { + // Extract function values + list( , $retval, $name, $params, $desc) = $function; + if (empty($name)) { + $name = $retval; + $retval = ''; + } + // Reconstruct the complete function line + $line = trim($retval . ' ' . $name . '(' . $params . ') - ' . $desc); + // Execute the statement + $stmt->execute(array(':name' => $name, ':description' => $line)); + } + + // Commit the changes to the database + $this->database->commit(); + } + // free up some more memory + unset($valid); + } + } +} |