[WordPress] Forever eliminate “Wordcamp” from the planet (or at least the little bit we can influence).

capital-c-dangit.php

<?php
/**
 * Plugin Name: Capital C, dangit!
 * Description: Forever eliminate “Wordcamp” from the planet (or at least the little bit we can influence).
 * Version:     2015.12
 * Author:      Caspar Hübinger
 * Author URI:  https://profiles.wordpress.org/glueckpress
 * License:     GNU General Public License v3 or later
 * License URI: http://www.gnu.org/licenses/gpl-3.0.html
 */

if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

/**
 * Iinitialize plugin.
 *
 * @return void
 */
function capital_C_dangit__init() {

	$default_filters = array(
		'the_content',
		'the_title',
		'wp_title',
		'document_title_parts'
	);

	foreach ( $default_filters as $filter )
		add_filter( $filter, 'capital_C_dangit', 11 );

	add_filter( 'comment_text', 'capital_C_dangit', 31 );
}
add_action( 'init', 'capital_C_dangit__init' );


/**
 * Forever eliminate "Wordcamp" from the planet (or at least the little bit we can influence).
 * Violating our coding standards for a good function name.
 *
 * See wp-includes/formatting.php
 *
 * @param  string $text The text to be modified.
 * @return string The modified text.
 */
function capital_C_dangit( $text ) {

	// Simple replacement for titles
	$current_filter = current_filter();

	if ( 'the_title'            === $current_filter
	  || 'wp_title'             === $current_filter
	  || 'document_title_parts' === $current_filter ) {

		return str_replace( 'Wordcamp', 'WordCamp', $text );
	}

	// Still here? Use the more judicious replacement
	static $dblq = false;

	if ( false === $dblq ) {

		$dblqs = array(
			_x( '&#8220;', 'opening curly double quote' )
		);
	}

	// Wordcamp => WordCamp
	$capitalized = str_replace(
		array(
			' Wordcamp',
			'&#8216;Wordcamp',
			$dblq . 'Wordcamp',
			'>Wordcamp',
			'(Wordcamp'
		),
		array(
			' WordCamp',
			'&#8216;WordCamp',
			$dblq . 'WordCamp',
			'>WordCamp',
			'(WordCamp'
		),
		$text
	);

	return $capitalized;
}