General: Remove “whitelist” and “blacklist” in favor of more clear and inclusive language.

“The WordPress open source community cares about diversity. We strive to maintain a welcoming environment where everyone can feel included.”

With this commit, all occurrences of “whitelist” and “blacklist” (with the single exception of the `$new_whitelist_options` global variable) are removed. A new ticket has been opened to explore renaming the `$new_whitelist_options` variable (#50434).

Changing to more specific names or rewording sentences containing these terms not only makes the code more inclusive, but also helps provide clarity. These terms are often ambiguous. What is being blocked or allowed is not always immediately clear. This can make it more difficult for non-native English speakers to read through the codebase.

Words matter. If one contributor feels more welcome because these terms are removed, this was worth the effort.

Props strangerstudios, jorbin, desrosj, joemcgill, timothyblynjacobs, ocean90, ayeshrajans, davidbaumwald, earnjam.
See #48900, #50434.
Fixes #50413.

git-svn-id: https://develop.svn.wordpress.org/trunk@48121 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-includes/deprecated.php

@@ -3995,3 +3995,83 @@ function wp_unregister_GLOBALS() {  // phpcs:ignore WordPress.NamingConventions.
 	// register_globals was deprecated in PHP 5.3 and removed entirely in PHP 5.4.
 	_deprecated_function( __FUNCTION__, '5.5.0' );
 }
+
+/**
+ * Does comment contain disallowed characters or words.
+ *
+ * @since 1.5.0
+ * @deprecated 5.5.0 Use wp_blocklist_check() instead.
+ *                   Please consider writing more inclusive code.
+ *
+ * @param string $author The author of the comment
+ * @param string $email The email of the comment
+ * @param string $url The url used in the comment
+ * @param string $comment The comment content
+ * @param string $user_ip The comment author's IP address
+ * @param string $user_agent The author's browser user agent
+ * @return bool True if comment contains disallowed content, false if comment does not
+ */
+function wp_blacklist_check( $author, $email, $url, $comment, $user_ip, $user_agent ) {
+	_deprecated_function( __FUNCTION__, '5.5.0', 'wp_blocklist_check()' );
+
+	return wp_blocklist_check( $author, $email, $url, $comment, $user_ip, $user_agent );
+}
+
+/**
+ * Filters out `register_meta()` args based on an allowed list.
+ *
+ * `register_meta()` args may change over time, so requiring the allowed list
+ * to be explicitly turned off is a warranty seal of sorts.
+ *
+ * @access private
+ * @since 4.6.0
+ * @deprecated 5.5.0 Use _wp_register_meta_args_allowed_list() instead.
+ *                   Please consider writing more inclusive code.
+ *
+ * @param array $args         Arguments from `register_meta()`.
+ * @param array $default_args Default arguments for `register_meta()`.
+ * @return array Filtered arguments.
+ */
+function _wp_register_meta_args_whitelist( $args, $default_args ) {
+	_deprecated_function( __FUNCTION__, '5.5.0', '_wp_register_meta_args_allowed_list()' );
+
+	return _wp_register_meta_args_allowed_list( $args, $default_args );
+}
+
+/**
+ * Adds an array of options to the list of allowed options.
+ *
+ * @since 2.7.0
+ * @deprecated 5.5.0 Use add_option_allowed_list() instead.
+ *                   Please consider writing more inclusive code.
+ *
+ * @global array $allowed_options
+ *
+ * @param array        $new_options
+ * @param string|array $options
+ * @return array
+ */
+function add_option_whitelist( $new_options, $options = '' ) {
+	_deprecated_function( __FUNCTION__, '5.5.0', 'add_option_allowed_list()' );
+
+	return add_option_allowed_list( $new_options, $options );
+}
+
+/**
+ * Removes a list of options from the allowed options list.
+ *
+ * @since 2.7.0
+ * @deprecated 5.5.0 Use remove_option_allowed_list() instead.
+ *                   Please consider writing more inclusive code.
+ *
+ * @global array $allowed_options
+ *
+ * @param array        $del_options
+ * @param string|array $options
+ * @return array
+ */
+function remove_option_whitelist( $del_options, $options = '' ) {
+	_deprecated_function( __FUNCTION__, '5.5.0', 'remove_option_allowed_list()' );
+
+	return remove_option_allowed_list( $del_options, $options );
+}