Index: wordpress.org/public_html/wp-content/plugins/p2-new-post-categories/p2-new-post-categories.php
===================================================================
--- wordpress.org/public_html/wp-content/plugins/p2-new-post-categories/p2-new-post-categories.php	(revision 0)
+++ wordpress.org/public_html/wp-content/plugins/p2-new-post-categories/p2-new-post-categories.php	(working copy)
@@ -0,0 +1,138 @@
+<?php
+/*
+Plugin Name: P2 New Post Categories
+Description: Adds a category dropdown to P2's new post form.
+Version:     0.1
+License:     GPLv2 or Later
+*/
+
+/*
+ * Note: This has been forked from the original version to conform to WordPress.org conventions.
+ */
+
+
+class P2NewPostCategories {
+	protected $new_category;
+	const VERSION = '0.1';
+	const REGEX_CATEGORY_IN_TAG_LIST = '/\[category=(.*)\]/i';
+
+	/*
+	 * Register hook callbacks
+	 */
+	public function __construct() {
+		add_action( 'wp_head',        array( $this, 'print_css' ) );
+		add_action( 'wp_footer',      array( $this, 'print_javascript' ) );
+
+		add_action( 'p2_post_form',   array( $this, 'add_new_post_category_dropdown' ) );
+		add_action( 'p2_ajax',        array( $this, 'parse_new_post_category' ) );
+		add_action( 'wp_insert_post', array( $this, 'assign_new_post_to_category' ) );
+	}
+
+	/*
+	 * Print our CSS
+	 */
+	public function print_css() {
+		?>
+
+		<!-- Begin P2 New Post Categories -->
+		<style type="text/css">
+			#new_post {
+				position: relative;
+				padding-bottom: 2.25em;
+			}
+
+			#p2-new-post-category {
+				position: absolute;
+				left: 0;
+				bottom: 0;
+			}
+		</style>
+		<!-- End P2 New Post Categories -->
+
+		<?php
+	}
+
+	/*
+	 * Print our JavaScript
+	 */
+	public function print_javascript() {
+		?>
+
+		<!-- Begin P2 New Post Categories -->
+		<script type="text/javascript">
+			( function( $ ) {
+
+				var P2NewPostCategories = {
+
+					/*
+					 * Initialization
+					 */
+					construct : function() {
+						$( '#p2-new-post-category' ).change( this.appendCategoryToTagList );
+					},
+
+					/*
+					 * Adds the name of the selected category to the #tags input field
+					 * See the comments in parse_new_post_category() for details.
+					 */
+					appendCategoryToTagList : function( event ) {
+						var optionalComma = '',
+							tags          = $( '#tags' ).val(),
+							category      = $( this ).children( 'option:selected' ).text();
+
+						tags = tags.replace( /Tag it,?/, '' ).replace( /,?\[category=(.*)\]/, '' );
+						if ( tags.length > 0 && ',' != tags.slice( -1 ) ) {
+							optionalComma = ',';
+						}
+
+						if ( 'Uncategorized' != category ) {
+							tags += optionalComma + '[category=' + category + ']';
+						}
+
+						if ( ',' == tags.substring( 0, 1 ) ) {
+							tags = tags.substring( 1, tags.length );
+						}
+
+						$( '#tags' ).val( tags );
+					}
+				}
+
+				P2NewPostCategories.construct();
+
+			} )( jQuery );
+		</script>
+		<!-- End P2 New Post Categories -->
+
+		<?php
+	}
+
+	public function add_new_post_category_dropdown() {
+		$params = apply_filters( 'p2npc_category_dropdown_params', array( 'id' => 'p2-new-post-category' ) );
+		wp_dropdown_categories( $params );
+	}
+
+	/*
+	 * Since we can't hook into p2.posts.submit() and add a category parameter to the $.ajax() call,
+	 * we append the category to the tags list and then parse it out before P2 processes it.
+	 */
+	public function parse_new_post_category( $action ) {
+		if ( 'new_post' == $action ) {
+			if ( preg_match( self::REGEX_CATEGORY_IN_TAG_LIST, $_POST['tags'], $matches ) ) {
+				$this->new_category = get_term_by( 'name', $matches[1], 'category' );
+				$_POST['tags'] = preg_replace( self::REGEX_CATEGORY_IN_TAG_LIST, '', $_POST['tags'] );
+			}
+		}
+	}
+
+	/*
+	 * When the new post is being saved, we assign the category that we parsed out in parse_new_post_category()
+	 */
+	public function assign_new_post_to_category( $post_id ) {
+		if ( isset( $this->new_category->term_id ) && $this->new_category->term_id ) {
+			wp_set_object_terms( $post_id, $this->new_category->slug, 'category' );
+		}
+	}
+
+} // end P2NewPostCategories
+
+$GLOBALS['P2NewPostCategories'] = new P2NewPostCategories();