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C:/xampp/php/PEAR/PHPDoc/analyser/_[ Writable ]

File:C:/xampp/php/PEAR/PHPDoc/analyser/PhpdocAnalyser.php

<?php
/**
 * Analyses parsing data.
 *
 * Analyse means:
 *   - update brother/sister
 *   - update access/return
 *   - inherit elements
 *   - inherit information
 *
 * @version $Id: PhpdocAnalyser.php,v 1.2 2001/08/28 18:44:20 chagenbu Exp $
 */
class PhpdocAnalyser extends PhpdocObject {

    /**
     * Flag indicating that getModule/getClass was called.
     *
     * @var  boolean
     */
    var $flag_get = false;
    
    /**
     * List of all elements of a certain class/module.
     *
     * The array is used to look up see references
     * 
     * @var  array   Format: elementlist[ eltype ][ elname ] = true
     * @see  buildElementlist()
     */
    var $elementlist = array();
    
    /**
     * Adds a suffix to the number like 1st, 2nd and 3th
     *
     * @param    integer     $nr     number to format
     * @return   string
     * @author   Thomas Weinert <subjective@subjective.de>
     */
    function addNumberSuffix($nr) {
    
        $last_nr = substr($nr, -1, 1);

        switch ($last_nr) {
            case 1: 
                return ($nr . 'st'); 
                break;

            case 2:
                return ($nr . 'nd'); 
                break;

            default: 
                return ($nr . 'th');
        }

    } // end func addNumberSuffix

    /**
     * Starts the analysing of the raw parsing data.
     *
     * @access   public
     * @abstract
     */
    function analyse() {
        ;
    } // end func analyse

    /**
     * Handles brother and sister.
     *
     * @abstract
     * @see      updateBrotherSisterElements()
     */
    function updateBrothersSisters() {
        ;
    } // end func updateBrothersSisters

    /**
     * Updates certain elements that use brother and sister.
     *
     * @return   boolean $ok
     */
    function updateBrotherSisterElements() {
        return false;
    } // end func updateBrotherSisterElements
    
    /**
     * Copies fields from a brother or sister to the current element.
     * 
     * @param    array   Data of the target element that has a brother/sister tag
     * @param    array   Data of the element that is referenced by brother/sister
     */
    function copyBrotherSisterFields($target, $from) {
        
        reset($from);
        while (list($k, $v) = each($from)) 
            if (!isset($target[$k]) || '' == $target[$k]) 
                $target[$k] = $v;
                
        return $target;
    } // end func copyBrotherSisterFields

    /**
     * Updates the access and return tag values.
     *
     * @see      updateAccessReturnElements(), updateAccessElements()
     * @abstract
     */
    function updateAccessReturn() {
        ;
    } // end func updateAccessReturn

    /**
     * Updates access and return for certain elements.
     *
     * This function should only be used to update functions.
     * Functions that have the same name as the class (constructors)
     * get return void and access public. Functions without
     * access get access public and functions without return get return void.
     *
     * @return   boolean    $ok
     * @see      updateAccessReturn()
     * @abstract
     */
    function updateAccessReturnElements() {
        ;
    } // end func updateAccessReturnElements

    /**
     * Updates access tags.
     *
     * @see      updateAccessReturnElements()
     * @abstract
     */
    function updateAccessElements() {
        ;
    } // end func updateAccessElements

    /**
     * Compares the param tags with the function head found.
     *
     * @abstract
     */
    function checkFunctionArgs() {
        ;
    } // end func checkFunctionArgs

    /**
     * Looks for undocumented elements and adds a warning if neccessary.
     *
     * @abstract
     */
    function findUndocumented() {
        ;
    } // end func findUndocumented
    
    /**
     * Checks all see references in the given classes/modulegroup.
     * 
     * @abstract
     */
    function checkSee() {
        ;                
    } // end func checkSee
    
    /**
     * Checks see references in the given elementlist.
     * 
     * @abstract
     */
    function checkSeeElement() {
        ;
    } // end func checkSeeElement
    
    /**
     * Build a list of all elemente (functions, variables,...) of a certain class/module
     * 
     * @abstract
     * @see            $elementlist
     */
    function buildElementlist() {
        ; 
    } // end func buildElementlist

    /**
     * Compares the argument list generated from the function head with the param tags found.
     *
     * PHPDoc is able to recognize these documentation mistakes:
     * - too few or too many param tags
     * - name does not match or is missing
     * - type does not match or is missing
     * - trouble with inherited elements
     *
     * @param    array   Function arguments found by the parser
     * @param    array   Paramarray
     * @param    string  Functionname
     * @param    string  Filename
     * @param    boolean Param tags inherited?
     * @return   array   $params    Param array
     */
    function checkArgDocs($args, $params, $elname, $elfile, $inherited = false) {
    
        // "param" contains the information from the @param tags.
        $num_args   = count($args);
        $num_params = count($params);

        // no args? return...
        if (0 == $num_args && 0 == $num_params)
            return array();

        // no args but @param used
        if (0 == $num_args && $num_params > 0) {
        
            if (!$inherited) {
            
                $msg = 'Function head shows no parameters, remove all @param tags.';
                $this->warn->addDocWarning($elfile, 'function', $elname, $msg, 'mismatch');

            } else {

                if ('void' != $params[0]['type']) {
    
                    $msg = 'The function inherited some parameter documentation from it\'s parentclass but PHPDoc could not find
                                    arguments in the function head. Add @param void to the doc comment to avoid confusion.';
                    $this->warn->addDocWarning($elfile, 'function', $elname, $msg, 'mismatch');
                
                }
            
            }

            return array();
            
        }

        // compare the informations from the parser with the @param tags
        reset($args);
        while (list($k, $arg) = each($args)) {

            if (isset($params[$k])) {

                if ($arg['optional'])
                    $params[$k]['default'] = $arg['default'];

                if (!$inherited) {

                    if ('' != $arg['type'] && '' != $params[$k]['type'] && 'mixed' != $params[$k]['type'] && strtolower($arg['type']) != strtolower($params[$k]['type'])) {

                        $type = $arg['type'];
                        $msg = sprintf('%s parameter type "%s" does not match the the documented type "%s", possible error consider an update to "@param %s %s %s" or "@param %s %s", the variable name is optional.',
                                        $this->addNumberSuffix($k + 1),
                                        $arg['name'],
                                        $params[$k]['type'],
                                        $type,
                                        $arg['name'],
                                        (isset($params[$k]['desc'])) ? $params[$k]['desc'] : '(description)',
                                        $type,
                                        (isset($params[$k]['desc'])) ? $params[$k]['desc'] : '(description)'
                                );

                        $this->warn->addDocWarning($elfile, 'function', $elname, $msg, 'mismatch');

                    } else if ('' != $params[$k]['type']) {

                        $type = $params[$k]['type'];

                    } else {

                        $msg = sprintf('Type missing for the %s parameter, "mixed" assumed.', $this->addNumberSuffix($k));
                        $this->warn->addDocWarning($elfile, 'function', $elname, $msg, 'missing');
                        $type = 'mixed';

                    }

                    $params[$k]['type'] = $type;

                } else {

                    if ('' != $params[$k]['type'] && strtolower($arg['type']) != strtolower($params[$k]['type'])) {

                        $type = (''!=$args['type']) ? $arg['type'] : $params[$k]['type'];
                        $msg = sprintf('Possible documentation error due to inherited information.
                                        The type of the %s parameter "%s" does not match the documented type "%s".
                                        Override the inherited documentation if neccessary.',
                                            $this->addNumberSuffix($k),
                                            $arg['type'],
                                            $params[$k]['type']
                                    );
                        $this->warn->addDocWarning($elfile, 'function', $elname, $msg, 'mismatch');
                
                    } else if ('' != $params[$k]['type']) {
        
                        $type = $params[$k]['type'];
            
                    } else {
            
                        $type = 'mixed';
                        $msg = sprintf('Type missing for the %d parameter, "mixed" assumed. Override the inherited documentation if neccessary.', $k);
                        $this->warn->addDocWarning($elfile, 'function', $elname, $msg, 'mismatch');

                    }

                    $params[$k]['type'] = $type;
                
                }

                if ('' != $params[$k]['name'] && $arg['name'] != $params[$k]['name']) {

                    $msg = sprintf('%s parameter "%s" does not match the documented name "%s", update the tag to "@param %s %s %s" or "@param %s %s", the variable name is optional.',
                                    $this->addNumberSuffix($k + 1),
                                    $arg['name'],
                                    $params[$k]['name'],
                                    $type,
                                    $arg['name'],
                                    (isset($params[$k]['desc'])) ? $params[$k]['desc'] : '(description)',
                                    $type,
                                    (isset($params[$k]['desc'])) ? $params[$k]['desc'] : '(description)'
                                );

                    $this->warn->addDocWarning($elfile, 'function', $elname, $msg, 'mismatch');
                    $params[$k]['name'] = $arg['name'];

                } else if ('' == $params[$k]['name']) {

                    $params[$k]['name'] = $arg['name'];

                }

            } else {

                $msg = sprintf('%s parameter "%s" is not documented add "@param %s [description]" to the end of the @param[eter] list.',
                                $this->addNumberSuffix($k+1),
                                $arg['name'],
                                ('' == $arg['type']) ? '(object objectname|type)' : $arg['type']
                            );

                $params[$k]['name']        = $arg['name'];
                $params[$k]['undoc']    = true;

                if ('' != $arg['type'])
                    $params[$k]['type'] = $arg['type'];

                $this->warn->addDocWarning($elfile, 'function', $elname, $msg, 'missing');
            }

        }

        // more @params specified than variables where found in the function head, delete them
        if ($num_params > $num_args) {

            $msg = "The parser found '$num_args' parameter but '$num_params' @param[eter] tags. You should update the @param[eter] list.";
            $this->warn->addDocWarning($elfile, 'function', $elname, $msg, 'mismatch');
            for ($i = $k + 1;  $i < $num_params; ++$i)
                unset($params[$i]);

        }

        return $params;
    } // end func checkArgDocs

} // end func PhpdocAnalyser
?>

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