elements. */ preg_match( '//', $content, $matches ); /* If no

elements were found, wrap the entire content in one. */ if ( empty( $matches ) ) $content = "

{$content}

"; } if ( has_post_format( 'aside' ) && !is_singular() ) $content .= ' ∞'; if (has_post_format( 'chat')) return (sf_impact_chat_content($content)); return $content; } endif; if (!function_exists('sf_impact_chat_content')): function sf_impact_chat_content( $content ) { global $_post_format_chat_ids; /* If this is not a 'chat' post, return the content. */ if ( !has_post_format( 'chat' ) ) return $content; /* Set the global variable of speaker IDs to a new, empty array for this chat. */ $_post_format_chat_ids = array(); /* Allow the separator (separator for speaker/text) to be filtered. */ $separator = apply_filters( 'my_post_format_chat_separator', ':' ); /* Open the chat transcript div and give it a unique ID based on the post ID. */ $chat_output = "\n\t\t\t" . '

'; /* Split the content to get individual chat rows. */ $chat_rows = preg_split( "/(\r?\n)+|(\s*)+/", $content ); /* Loop through each row and format the output. */ foreach ( $chat_rows as $chat_row ) { /* If a speaker is found, create a new chat row with speaker and text. */ if ( strpos( $chat_row, $separator ) ) { /* Split the chat row into author/text. */ $chat_row_split = explode( $separator, trim( $chat_row ), 2 ); /* Get the chat author and strip tags. */ $chat_author = strip_tags( trim( $chat_row_split[0] ) ); /* Get the chat text. */ $chat_text = trim( $chat_row_split[1] ); /* Get the chat row ID (based on chat author) to give a specific class to each row for styling. */ $speaker_id = sf_impact_chat_row_id( $chat_author ); /* Open the chat row. */ $chat_output .= "\n\t\t\t\t" . '

'; /* Add the chat row author. */ $chat_output .= "\n\t\t\t\t\t" . '

' . apply_filters( 'my_post_format_chat_author', $chat_author, $speaker_id ) . $separator . '

'; /* Add the chat row text. */ $chat_output .= "\n\t\t\t\t\t" . '

' . str_replace( array( "\r", "\n", "\t" ), '', apply_filters( 'my_post_format_chat_text', $chat_text, $chat_author, $speaker_id ) ) . '

'; /* Close the chat row. */ $chat_output .= "\n\t\t\t\t" . '

'; } /** * If no author is found, assume this is a separate paragraph of text that belongs to the * previous speaker and label it as such, but let's still create a new row. */ else { /* Make sure we have text. */ if ( !empty( $chat_row ) ) { /* Open the chat row. */ $chat_output .= "\n\t\t\t\t" . '

'; /* Don't add a chat row author. The label for the previous row should suffice. */ /* Add the chat row text. */ $chat_output .= "\n\t\t\t\t\t" . '

' . str_replace( array( "\r", "\n", "\t" ), '', apply_filters( 'my_post_format_chat_text', $chat_row, $chat_author, $speaker_id ) ) . '

'; /* Close the chat row. */ $chat_output .= "\n\t\t\t

"; } } } /* Close the chat transcript div. */ $chat_output .= "\n\t\t\t

\n"; /* Return the chat content and apply filters for developers. */ return apply_filters( 'my_post_format_chat_content', $chat_output ); } endif; /** * This function returns an ID based on the provided chat author name. It keeps these IDs in a global * array and makes sure we have a unique set of IDs. The purpose of this function is to provide an "ID" * that will be used in an HTML class for individual chat rows so they can be styled. So, speaker "John" * will always have the same class each time he speaks. And, speaker "Mary" will have a different class * from "John" but will have the same class each time she speaks. * * @author David Chandra * @link http://www.turtlepod.org * @author Justin Tadlock * @link http://justintadlock.com * @copyright Copyright (c) 2012 * @license http://www.gnu.org/licenses/old-licenses/gpl-2.0.html * @link http://justintadlock.com/archives/2012/08/21/post-formats-chat * * @global array $_post_format_chat_ids An array of IDs for the chat rows based on the author. * @param string $chat_author Author of the current chat row. * @return int The ID for the chat row based on the author. */ if (!function_exists('sf_impact_chat_row_id')): function sf_impact_chat_row_id( $chat_author ) { global $_post_format_chat_ids; /* Let's sanitize the chat author to avoid craziness and differences like "John" and "john". */ $chat_author = strtolower( strip_tags( $chat_author ) ); /* Add the chat author to the array. */ $_post_format_chat_ids[] = $chat_author; /* Make sure the array only holds unique values. */ $_post_format_chat_ids = array_unique( $_post_format_chat_ids ); /* Return the array key for the chat author and add "1" to avoid an ID of "0". */ return absint( array_search( $chat_author, $_post_format_chat_ids ) ) + 1; } endif; ?>