Extension:Counter

MediaWiki extensions manual

Counter Release status: unmaintained
Implementation	Parser function
Description	Allows to auto count objects in a page
Author(s)	(Rinicktalk)
Latest version	0.2 (2010-01-05)
MediaWiki	1.15+
Database changes	No
License	Mozilla Public License 2.0
Download	See the code section
Hooks used LanguageGetMagic ParserFirstCallInit
Check usage and version matrix.

The Counter extension allows to auto count objects in a page.

If you change some item to {{#+: item}} you can get the number of item in this article with {{#+: ? item}}

Usage

Description	You type	You get
Basic usage
simple counter	* Alice: {{#+: agree}} * Bob: {{#+: agree}} * Carol: {{#+: disagree}} * Dave: {{#+: agree}} * Eve: {{#+: disagree}} * Isaac: {{#+: agree}} total: * '''{{#+: ? agree}} ''' * '''{{#+: ? disagree}}'''	Alice: agree Bob: agree Carol: disagree Dave: agree Eve: disagree Isaac: agree total: 4 agree 2 disagree
simple counter with numbers	# {{#+: 1 person}} # {{#+: 2 person}}s # {{#+: 3 person}}s total: '''{{#+: ? person}}s''' <br /> number of person: '''{{#+: ? | person}}'''	1 person 2 persons 3 persons total: 6 persons number of person: 6
a, an, one, two...twenty	{{#+: an apple}} + {{#+: a apple}} + {{#+: one apple}} + {{#+: two apple}}s <br /> = '''{{#+: ? apple}}s'''	an apple + a apple + one apple + two apples = 5 apples
You can count more than one item in a single tag	We have {{#+: an apple|fruit,red}}, {{#+: an orange|fruit,yellow}} and {{#+: 2 banana|fruit,yellow}}s <br /> We have '''{{#+: ? fruit}}s''', '''{{#+: ? | yellow}}''' of them are yellow	We have an apple, an orange and 2 bananas We have 4 fruits, 3 of them are yellow
Handle special plural
you can add the results	{{#+: 1 man}} and {{#+: 1 man}} and {{#+: 2 men}} <br /> total: '''{{#+: ? men|man,men}}'''	1 man and 1 man and 2 men total: 4 men
you can also specify that 1 man is 1 men	{{#+: 1 man|men}} plus {{#+: 5 men}}, then {{#+: 2 men|men|-2}} leave <br /> remain: '''{{#+: ? men}}'''	1 man plus 5 men, then 2 men leave remain: 4 men

Installation

• Copy the code into a file and place the file(s) in a directory called Counter in your extensions/ folder.
• Add the following code at the bottom of your LocalSettings.php:

  require_once "$IP/extensions/Counter/Counter.php";
  

•  Done – Navigate to Special:Version on your wiki to verify that the extension is successfully installed.

Code

Counter.php

<?php
/**
 * Counter extension for MediaWiki
 * Allows auto counting of objects in a page
 *
 * @file
 * @ingroup Extensions
 * @author Rinick
 * @date 2010/01/05
 * @version 0.2
 * @link http://www.mediawiki.org/wiki/Extension:Counter Documentation
 * @license http://www.mozilla.org/MPL/2.0/ Mozilla Public License 2.0
 */
 
if ( !defined( 'MEDIAWIKI' ) ) {
        die( 'This file is an extension to MediaWiki and thus not a valid entry point.' );
}

$wgExtensionCredits['counter'][] = array(
        'name' => 'Counter',
	'version' => '0.2',
        'author' => 'Rinick',
        'description' => 'Allows auto counting of objects in a page',
        'url' => 'https://www.mediawiki.org/wiki/Extension:Counter',
);

$wgExtensionFunctions[] = 'wfParserFunctionCounter_Setup';
$wgHooks['LanguageGetMagic'][]       = 'wfParserFunctionCounter_Magic';


function wfParserFunctionCounter_Setup() {
	global $wgParser, $counterFunctions, $wgHooks ;

	$counterFunctions = new CounterParserFunctions;
   
	if ( defined( 'MW_SUPPORTS_PARSERFIRSTCALLINIT' ) ) {
		$wgHooks['ParserFirstCallInit'][] = array( &$counterFunctions, 'registerParser' );
	} else {
		if ( class_exists( 'StubObject' ) && !StubObject::isRealObject( $wgParser ) ) {
			$wgParser->_unstub();
		}
		$counterFunctions->registerParser( $wgParser );
	}
}

function wfParserFunctionCounter_Magic( &$magicWords, $langCode ) {
    $magicWords['+'] = array( 0, '+' );
    return true;
}

class CounterParserFunctions
{
	var $counterStrToNumberTable = array(
		'a' => 1, 'an' => 1, 'another' => 1, 'one' => 1,
		'two' => 2, 'three' => 3, 'four' => 4, 'five' => 5,
		'six' => 6, 'seven' => 7, 'eight' => 8, 'nine' => 9,
		'ten' => 10, 'eleven' => 11, 'twelve' => 12, 'thirteen' => 13,
		'fourteen' => 14, 'fifteen' => 15, 'sixteen' => 16, 'seventeen' => 17,
		'eighteen' => 18, 'nineteen' => 19, 'twenty' => 20);

	var $counterDict = array();
	
	function registerParser( &$parser ) {
		$parser->setFunctionHook( '+', array(&$this, 'wfParserFunctionCounter_Render') );
		return true;
	}
	function counterStrToNumber($str)
	{
		if (array_key_exists($str, $this->counterStrToNumberTable)) //Yo I fixed a Bug, Chakaaa!!
		{
			return $counterStrToNumberTable[$str];
		}
		return $str + 0;
	}

	
	function wfParserFunctionCounter_Render( &$parser, $param1 = '', $param2 = '', $param3 = '' )
	{
		global $counterDict;

		$str = trim($param1);
		$keys = trim($param2);
		$num = $param3 + 0;
		if ($num == 0)
		{
			$idx = strpos($str, ' ');
			if ($idx)
			{
				$num = substr($str, 0, $idx);
				$num = $this->counterStrToNumber($num);
				if ($num != 0)
				{
					$name = substr($str, $idx + 1);
				}
				else if (substr($str, 0, 1) == '?')
				{
					$num = '?';
					$name = trim(substr($str,1));
				}
				else
				{
					$num = 1;
					$name = $str;
				}
			}
			else
			{
				$num = 1;
				$name = $str;
			}
		}
		if ($keys)
		{
			$keys = split(',', $keys);
		}
		else
		{
			$keys = array($name);
		}
		if ($num == '?')
		{
			$num = 0;
			foreach ($keys as $key)
			{
				$num += $counterDict[trim($key)];
			}
			$str = $num . ' ' . $name;
		}
		else
		{
			foreach ($keys as $key)
			{
				$counterDict[trim($key)] += $num;
			}
		}
		return $str;
	}
}