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florianbrinkmann/slack-to-wxr.php

Last active December 28, 2022 23:30
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slack-to-wxr.php
<?php
/**
* Needs php_mbstring extension
*/
ini_set( 'memory_limit', '1024M' );
date_default_timezone_set( 'UTC' );
// Damit es in der Konsole nicht so lange dauert
error_reporting( 0 );
// <load users file>
$users = json_decode( file_get_contents( __DIR__ . '/' . 'users.json' ), true );
$usersById = array();
foreach ( $users as $user ) {
$usersById[ $user['id'] ] = $user;
}
// </load users file>
// <load channels file>
$channels = json_decode( file_get_contents( __DIR__ . '/' . 'channels.json' ), true );
$channelsById = array();
foreach ( $channels as $channel ) {
$channelsById[ $channel['id'] ] = $channel;
}
/**
* with $_GET['start-date'] and $_GET['end-date'] you can set a range of days for the xml
* or, on the command line: php slack-to-xml.php start-date="01.01.2016" end-date="05.01.2016"
* you can also set either start-date or end-date
*/
$args = $argv;
$start_date_arg = preg_grep( '/start-date=/', $args );
$end_date_arg = preg_grep( '/end-date=/', $args );
$start_date_timestamp = '';
if ( ! empty( $start_date_arg ) ) {
$start_date_arg = end( $start_date_arg );
$start_date = preg_replace( '/start-date=/', '', $start_date_arg );
$start_date_timestamp = strtotime( $start_date );
} elseif ( isset( $_GET['start-date'] ) ) {
$start_date_timestamp = strtotime( $_GET['start-date'] );
}
$end_date_timestamp = '';
if ( ! empty( $end_date_arg ) ) {
$end_date_arg = end( $end_date_arg );
$end_date = preg_replace( '/end-date=/', '', $end_date_arg );
$end_date_timestamp = strtotime( $end_date );
} elseif ( isset( $_GET['end-date'] ) ) {
$end_date_timestamp = strtotime( $_GET['end-date'] );
}
// </load channels file>
$files = scandir( __DIR__ );
$xml_export_array = [ ];
foreach ( $files as $channel ) {
if ( $channel == '.' || $channel == '..' ) {
continue;
}
if ( is_dir( $channel ) ) {
unset( $chats );
$chats = array();
$dates = scandir( __DIR__ . '/' . $channel );
foreach ( $dates as $date ) {
if ( ! is_dir( $date ) ) {
$messages = json_decode( file_get_contents( __DIR__ . '/' . $channel . '/' . $date ), true );
$pattern = '/([0-9\-]+)/';
preg_match( $pattern, $date, $match );
if ( ! empty( $match ) ) {
$date = $match[0];
$date_timestamp = strtotime( $date );
if ( ( $start_date_timestamp != "" && $start_date_timestamp > $date_timestamp ) ) {
continue;
}
if ( $end_date_timestamp != "" && $end_date_timestamp < $date_timestamp ) {
continue;
}
}
if ( empty( $messages ) ) {
continue;
}
foreach ( $messages as $message ) {
if ( empty( $message ) ) {
continue;
}
if ( empty( $message['text'] ) ) {
continue;
}
// change <@U38A3DE9> into levelsio
if ( stripos( $message['text'], '<@' ) !== false ) {
$usersInMessage = explode( '<@', $message['text'] );
foreach ( $usersInMessage as $userInMessage ) {
$array = explode( '>', $userInMessage );
$userHandleInBrackets = $array[0];
$array = explode( '|', $array[0] );
$userInMessage = $array[0];
$username = $array[1];
if ( empty( $username ) ) {
$username = $usersById[ $userInMessage ]['name'];
}
$message['text'] = str_replace( '<@' . $userHandleInBrackets . '>', '@' . $username, $message['text'] );
}
}
// change <#U38A3DE9> into #_chiang-mai
if ( stripos( $message['text'], '<#' ) !== false ) {
$channelsInMessage = explode( '<#', $message['text'] );
foreach ( $channelsInMessage as $channelInMessage ) {
$array = explode( '>', $channelInMessage );
$channelHandleInBrackets = $array[0];
$array = explode( '|', $array[0] );
$channelInMessage = $array[0];
if ( ! empty ( $array[1] ) ) {
$channelNameInMessage = $array[1];
}
if ( empty( $channelNameInMessage ) ) {
if ( ! empty( $channelsById[ $channelInMessage ]['name'] ) ) {
$channelNameInMessage = $channelsById[ $channelInMessage ]['name'];
}
}
$message['text'] = str_replace( '<#' . $channelHandleInBrackets . '>', '#' . $channelNameInMessage, $message['text'] );
}
}
// change <http://url> into link
if ( stripos( $message['text'], '<http' ) !== false ) {
$linksInMessage = explode( '<http', $message['text'] );
foreach ( $linksInMessage as $linkInMessage ) {
$array = explode( '>', $linkInMessage );
$linkTotalInBrackets = $array[0];
if ( stripos($linkTotalInBrackets, '|')) {
$array = explode( '|', $array[0] );
$linkInMessage = $array[0];
$message['text'] = str_replace( '<http' . $linkTotalInBrackets . '>', '<http' . $linkInMessage . '>', $message['text'] );
}
}
}
// change @here et cetera so that it doesn’t get converted to a mailto:link from the markdown parser
if ( stripos( $message['text'], '<!' ) !== false ) {
$mentionsInMessage = explode( '<!', $message['text'] );
foreach ( $mentionsInMessage as $mentionInMessage ) {
$array = explode( '>', $mentionInMessage );
$mentionInBrackets = $array[0];
if ( stripos($mentionInBrackets, '|')) {
$array = explode( '|', $array[0] );
$mentionInMessage = $array[0];
$mention = $array[1];
$message['text'] = str_replace( '<!' . $mentionInBrackets . '>',$mention, $message['text'] );
}
}
}
$array = explode( '.', $message['ts'] );
$message_timestamp = $message['ts'];
$message_date = date( 'd.m.Y H:i', $message_timestamp );
if ( ! empty ( $message['user'] ) ) {
$gravatar = $usersById[ $message['user'] ]['profile']['image_72'];
}
if ( ! empty ( $message['user'] ) ) {
$username = $usersById[ $message['user'] ]['name'];
}
$message = $message['text'];
// replace &gt; on line start with > so that the markdown parser
// creates a blockquote
$pattern = '/^&gt;/m';
preg_match_all($pattern, $message, $match);
if ( ! empty($match)) {
$message = preg_replace($pattern, '>', $message);
}
/**
* Input line break after > so that this:
*
* > Test
* Reaction
*
* is not parsed as blockquote but only > Test
*/
$pattern = '/(^>.*(\n){1})^[^>]/m';
preg_match_all($pattern, $message, $matches);
if ( ! empty($matches)) {
foreach ($matches as $key => $match ) {
if ( $key == 1 && ! empty($match) ) {
foreach ( $match as $match_string ) {
$message = str_replace($match_string, $match_string . "\n", $message);
}
}
}
}
// Markdown parsen
$Parsedown = new Parsedown();
$Parsedown->setBreaksEnabled(true);
$message = $Parsedown->text($message);
// Emojis einsetzen
/**
* EMOJI SHORT NAME’S TO HTML HEX CODE
* @source https://github.com/davidsword/emoji-shortname-to-hex
*/
$emoji_unicode=array('copyright'=>'&#x00A9;;','registered'=>'&#x00AE;;','bangbang'=>'&#x203C;;','interrobang'=>'&#x2049;;','tm'=>'&#x2122;;','information_source'=>'&#x2139;;','left_right_arrow'=>'&#x2194;;','arrow_up_down'=>'&#x2195;;','arrow_upper_left'=>'&#x2196;;','arrow_upper_right'=>'&#x2197;','arrow_lower_right'=>'&#x2198;','arrow_lower_left'=>'&#x2199;','leftwards_arrow_with_hook'=>'&#x21A9;','arrow_right_hook'=>'&#x21AA;','watch'=>'&#x231A;','hourglass'=>'&#x231B;','keyboard'=>'&#x2328;','eject'=>'&#x23CF;','fast_forward'=>'&#x23E9;','rewind'=>'&#x23EA;','arrow_double_up'=>'&#x23EB;','arrow_double_down'=>'&#x23EC;','black_right_pointing_double_triangle_with_vertical_bar'=>'&#x23ED;','black_left_pointing_double_triangle_with_vertical_bar'=>'&#x23EE;','black_right_pointing_triangle_with_double_vertical_bar'=>'&#x23EF;','alarm_clock'=>'&#x23F0;','stopwatch'=>'&#x23F1;','timer_clock'=>'&#x23F2;','hourglass_flowing_sand'=>'&#x23F3;','double_vertical_bar'=>'&#x23F8;','black_square_for_stop'=>'&#x23F9;','black_circle_for_record'=>'&#x23FA;','m'=>'&#x24C2;','black_small_square'=>'&#x25AA;','white_small_square'=>'&#x25AB;','arrow_forward'=>'&#x25B6;','arrow_backward'=>'&#x25C0;','white_medium_square'=>'&#x25FB;','black_medium_square'=>'&#x25FC;','white_medium_small_square'=>'&#x25FD;','black_medium_small_square'=>'&#x25FE;','sunny'=>'&#x2600;','cloud'=>'&#x2601;','umbrella'=>'&#x2602;','snowman'=>'&#x2603;','comet'=>'&#x2604;','phone'=>'&#x260E;','telephone'=>'&#x260E;','ballot_box_with_check'=>'&#x2611;','umbrella_with_rain_drops'=>'&#x2614;','coffee'=>'&#x2615;','shamrock'=>'&#x2618;','point_up'=>'&#x261D;','skull_and_crossbones'=>'&#x2620;','radioactive_sign'=>'&#x2622;','biohazard_sign'=>'&#x2623;','orthodox_cross'=>'&#x2626;','star_and_crescent'=>'&#x262A;','peace_symbol'=>'&#x262E;','yin_yang'=>'&#x262F;','wheel_of_dharma'=>'&#x2638;','white_frowning_face'=>'&#x2639;','relaxed'=>'&#x263A;','aries'=>'&#x2648;','taurus'=>'&#x2649;','gemini'=>'&#x264A;','cancer'=>'&#x264B;','leo'=>'&#x264C;','virgo'=>'&#x264D;','libra'=>'&#x264E;','scorpius'=>'&#x264F;','sagittarius'=>'&#x2650;','capricorn'=>'&#x2651;','aquarius'=>'&#x2652;','pisces'=>'&#x2653;','spades'=>'&#x2660;','clubs'=>'&#x2663;','hearts'=>'&#x2665;','diamonds'=>'&#x2666;','hotsprings'=>'&#x2668;','recycle'=>'&#x267B;','wheelchair'=>'&#x267F;','hammer_and_pick'=>'&#x2692;','anchor'=>'&#x2693;','crossed_swords'=>'&#x2694;','scales'=>'&#x2696;','alembic'=>'&#x2697;','gear'=>'&#x2699;','atom_symbol'=>'&#x269B;','fleur_de_lis'=>'&#x269C;','warning'=>'&#x26A0;','zap'=>'&#x26A1;','white_circle'=>'&#x26AA;','black_circle'=>'&#x26AB;','coffin'=>'&#x26B0;','funeral_urn'=>'&#x26B1;','soccer'=>'&#x26BD;','baseball'=>'&#x26BE;','snowman_without_snow'=>'&#x26C4;','partly_sunny'=>'&#x26C5;','thunder_cloud_and_rain'=>'&#x26C8;','ophiuchus'=>'&#x26CE;','pick'=>'&#x26CF;','helmet_with_white_cross'=>'&#x26D1;','chains'=>'&#x26D3;','no_entry'=>'&#x26D4;','shinto_shrine'=>'&#x26E9;','church'=>'&#x26EA;','mountain'=>'&#x26F0;','umbrella_on_ground'=>'&#x26F1;','fountain'=>'&#x26F2;','golf'=>'&#x26F3;','ferry'=>'&#x26F4;','boat'=>'&#x26F5;','sailboat'=>'&#x26F5;','skier'=>'&#x26F7;','ice_skate'=>'&#x26F8;','person_with_ball'=>'&#x26F9;','tent'=>'&#x26FA;','fuelpump'=>'&#x26FD;','scissors'=>'&#x2702;','white_check_mark'=>'&#x2705;','airplane'=>'&#x2708;','email'=>'&#x2709;','envelope'=>'&#x2709;','fist'=>'&#x270A;','hand'=>'&#x270B;','raised_hand'=>'&#x270B;','v'=>'&#x270C;','writing_hand'=>'&#x270D;','pencil2'=>'&#x270F;','black_nib'=>'&#x2712;','heavy_check_mark'=>'&#x2714;','heavy_multiplication_x'=>'&#x2716;','latin_cross'=>'&#x271D;','star_of_david'=>'&#x2721;','sparkles'=>'&#x2728;','eight_spoked_asterisk'=>'&#x2733;','eight_pointed_black_star'=>'&#x2734;','snowflake'=>'&#x2744;','sparkle'=>'&#x2747;','x'=>'&#x274C;','negative_squared_cross_mark'=>'&#x274E;','question'=>'&#x2753;','grey_question'=>'&#x2754;','grey_exclamation'=>'&#x2755;','exclamation'=>'&#x2757;','heavy_exclamation_mark'=>'&#x2757;','heavy_heart_exclamation_mark_ornament'=>'&#x2763;','heart'=>'&#x2764;','heavy_plus_sign'=>'&#x2795;','heavy_minus_sign'=>'&#x2796;','heavy_division_sign'=>'&#x2797;','arrow_right'=>'&#x27A1;','curly_loop'=>'&#x27B0;','loop'=>'&#x27BF;','arrow_heading_up'=>'&#x2934;','arrow_heading_down'=>'&#x2935;','arrow_left'=>'&#x2B05;','arrow_up'=>'&#x2B06;','arrow_down'=>'&#x2B07;','black_large_square'=>'&#x2B1B;','white_large_square'=>'&#x2B1C;','star'=>'&#x2B50;','o'=>'&#x2B55;','wavy_dash'=>'&#x3030;','part_alternation_mark'=>'&#x303D;','congratulations'=>'&#x3297;','secret'=>'&#x3299;','mahjong'=>'&#x1F004;','black_joker'=>'&#x1F0CF;','a'=>'&#x1F170;','b'=>'&#x1F171;','o2'=>'&#x1F17E;','parking'=>'&#x1F17F;','ab'=>'&#x1F18E;','cl'=>'&#x1F191;','cool'=>'&#x1F192;','free'=>'&#x1F193;','id'=>'&#x1F194;','new'=>'&#x1F195;','ng'=>'&#x1F196;','ok'=>'&#x1F197;','sos'=>'&#x1F198;','up'=>'&#x1F199;','vs'=>'&#x1F19A;','koko'=>'&#x1F201;','sa'=>'&#x1F202;','u7121'=>'&#x1F21A;','u6307'=>'&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preg_match_all("/:([a-zA-Z0-9'_+-]+):/", $message, $emojis);
foreach ($emojis[1] as $emojiname) {
$message = str_replace(":". $emojiname.":", $emoji_unicode[$emojiname], $message);
}
$htmlMessage = "<div id='$message_timestamp'><img src='$gravatar' /><div class='message'><div class='username'>$username</div><div class='time'><a href='#$message_timestamp'>$message_date</a></div><div class='msg'>$message</div></div></div>";
$xml_export_array[ $channel ][ $date ][] = [ $htmlMessage ];
}
}
}
}
}
krsort( $xml_export_array );
$xml_file_markup = new DOMDocument( "1.0", "UTF-8" );
$xml_file_markup->formatOutput = true;
$rss_element = $xml_file_markup->createElement( 'rss' );
$xml_file_markup->appendChild( $rss_element );
$xml_file_markup->createAttributeNS( 'http://wordpress.org/export/1.2/excerpt/', 'excerpt:attr' );
$xml_file_markup->createAttributeNS( 'http://purl.org/rss/1.0/modules/content/', 'content:attr' );
$xml_file_markup->createAttributeNS( 'http://wellformedweb.org/CommentAPI/', 'wfw:attr' );
$xml_file_markup->createAttributeNS( 'http://purl.org/dc/elements/1.1/', 'dc:attr' );
$xml_file_markup->createAttributeNS( 'http://wordpress.org/export/1.2/', 'wp:attr' );
$channel_element = $xml_file_markup->createElement( 'channel' );
$rss_element->appendChild( $channel_element );
$title_element = $xml_file_markup->createElement( 'title', 'Slack-Archiv' );
$channel_element->appendChild( $title_element );
$description_element = $xml_file_markup->createElement( 'description', 'Slack-Archiv des DEWP-Teams' );
$channel_element->appendChild( $description_element );
$pubDate_element = $xml_file_markup->createElement( 'pubDate', 'Thu, 28 Jul 2016 07:23:02 +0000' );
$channel_element->appendChild( $pubDate_element );
$language_element = $xml_file_markup->createElement( 'language', 'de-DE' );
$channel_element->appendChild( $language_element );
$wxr_version_element = $xml_file_markup->createElementNS( 'http://wordpress.org/export/1.2/', 'wp:wxr_version', '1.2' );
$channel_element->appendChild( $wxr_version_element );
$base_site_url_element = $xml_file_markup->createElementNS( 'http://wordpress.org/export/1.2/', 'wp:base_site_url', 'https://example.com/' );
$channel_element->appendChild( $base_site_url_element );
$base_blog_url_element = $xml_file_markup->createElementNS( 'http://wordpress.org/export/1.2/', 'wp:base_blog_url', 'https://example.com/' );
$channel_element->appendChild( $base_blog_url_element );
$author_element = $xml_file_markup->createElementNS( 'http://wordpress.org/export/1.2/', 'wp:author' );
$channel_element->appendChild( $author_element );
$author_id_element = $xml_file_markup->createElementNS( 'http://wordpress.org/export/1.2/', 'wp:author_id', 1 );
$author_element->appendChild( $author_id_element );
$author_login_element = $xml_file_markup->createElementNS( 'http://wordpress.org/export/1.2/', 'wp:author_login' );
$author_element->appendChild( $author_login_element );
$author_login_element->appendChild( $xml_file_markup->createCDATASection( 'author' ) );
$author_email_element = $xml_file_markup->createElementNS( 'http://wordpress.org/export/1.2/', 'wp:author_email' );
$author_element->appendChild( $author_email_element );
$author_email_element->appendChild( $xml_file_markup->createCDATASection( 'author@example.com' ) );
$author_display_name_element = $xml_file_markup->createElementNS( 'http://wordpress.org/export/1.2/', 'wp:author_display_name' );
$author_element->appendChild( $author_display_name_element );
$author_display_name_element->appendChild( $xml_file_markup->createCDATASection( 'Author' ) );
$author_first_name_element = $xml_file_markup->createElementNS( 'http://wordpress.org/export/1.2/', 'wp:author_first_name' );
$author_element->appendChild( $author_first_name_element );
$author_last_name_element = $xml_file_markup->createElementNS( 'http://wordpress.org/export/1.2/', 'wp:author_last_name' );
$author_element->appendChild( $author_last_name_element );
foreach ( $xml_export_array as $key => $value ) {
$channel = $key;
foreach ( $value as $date => $message_array ) {
$timestamp = strtotime( $date );
$date = date( 'd.m.Y', $timestamp );
$title = "#$channel am $date";
$pub_date = date( 'D, d M Y 10:00:00 +0000', $timestamp );
$post_date = date( 'Y-m-d 10:00:00', $timestamp );
$post_date_gmt = gmdate( 'Y-m-d H:i:s', strtotime( $post_date ) );
$category_nicename = str_replace( '_', '-', $channel );
$post_markup = '<div class="messages" style="clear:both;">';
foreach ( $message_array as $message ) {
$post_markup .= $message[0];
}
$post_markup .= '</div>';
$item_element = $xml_file_markup->createElement( 'item' );
$channel_element->appendChild( $item_element );
$title_element = $xml_file_markup->createElement( 'title', $title );
$item_element->appendChild( $title_element );
$pubDate_element = $xml_file_markup->createElement( 'pubDate', $pub_date );
$item_element->appendChild( $pubDate_element );
$creator_element = $xml_file_markup->createElementNS( 'http://purl.org/dc/elements/1.1/', 'dc:creator' );
$item_element->appendChild( $creator_element );
$creator_element->appendChild( $xml_file_markup->createCDATASection( 'florian' ) );
$content_element = $xml_file_markup->createElementNS( 'http://purl.org/rss/1.0/modules/content/', 'content:encoded' );
$item_element->appendChild( $content_element );
$content_element->appendChild( $xml_file_markup->createCDATASection( $post_markup ) );
$excerpt_element = $xml_file_markup->createElementNS( 'http://wordpress.org/export/1.2/excerpt/', 'excerpt:encoded' );
$item_element->appendChild( $excerpt_element );
$excerpt_element->appendChild( $xml_file_markup->createCDATASection( '' ) );
$post_date_element = $xml_file_markup->createElementNS( 'http://wordpress.org/export/1.2/', 'wp:post_date' );
$item_element->appendChild( $post_date_element );
$post_date_element->appendChild( $xml_file_markup->createCDATASection( $post_date ) );
$post_date_gmt_element = $xml_file_markup->createElementNS( 'http://wordpress.org/export/1.2/', 'wp:post_date_gmt' );
$item_element->appendChild( $post_date_gmt_element );
$post_date_gmt_element->appendChild( $xml_file_markup->createCDATASection( $post_date_gmt ) );
$comment_status_element = $xml_file_markup->createElementNS( 'http://wordpress.org/export/1.2/', 'wp:comment_status' );
$item_element->appendChild( $comment_status_element );
$comment_status_element->appendChild( $xml_file_markup->createCDATASection( 'closed' ) );
$ping_status_element = $xml_file_markup->createElementNS( 'http://wordpress.org/export/1.2/', 'wp:ping_status' );
$item_element->appendChild( $ping_status_element );
$ping_status_element->appendChild( $xml_file_markup->createCDATASection( 'closed' ) );
$status_element = $xml_file_markup->createElementNS( 'http://wordpress.org/export/1.2/', 'wp:status' );
$item_element->appendChild( $status_element );
$status_element->appendChild( $xml_file_markup->createCDATASection( 'publish' ) );
$post_parent_element = $xml_file_markup->createElementNS( 'http://wordpress.org/export/1.2/', 'wp:post_parent', '0' );
$item_element->appendChild( $post_parent_element );
$menu_order_element = $xml_file_markup->createElementNS( 'http://wordpress.org/export/1.2/', 'wp:menu_order', '0' );
$item_element->appendChild( $menu_order_element );
$post_type_element = $xml_file_markup->createElementNS( 'http://wordpress.org/export/1.2/', 'wp:post_type' );
$item_element->appendChild( $post_type_element );
$post_type_element->appendChild( $xml_file_markup->createCDATASection( 'post' ) );
$post_password_element = $xml_file_markup->createElementNS( 'http://wordpress.org/export/1.2/', 'wp:post_password' );
$item_element->appendChild( $post_password_element );
$post_password_element->appendChild( $xml_file_markup->createCDATASection( '' ) );
$category_element = $xml_file_markup->createElement( 'category' );
$item_element->appendChild( $category_element );
$category_element->setAttribute( 'domain', 'category' );
$category_element->setAttribute( 'nicename', $category_nicename );
$category_element->appendChild( $xml_file_markup->createCDATASection( "#$channel" ) );
}
}
if ( $start_date != "" && $end_date != "" ) {
$xml_file_markup->save( "slack-export-wxr-$start_date-$end_date.xml" );
} elseif ($start_date != "") {
$xml_file_markup->save( "slack-export-wxr-start_date-$start_date.xml" );
} elseif($end_date != "") {
$xml_file_markup->save( "slack-export-wxr-end_date-$end_date.xml" );
} else {
$xml_file_markup->save( "slack-export-wxr.xml" );
}
# Parsedown
# http://parsedown.org
#
# (c) Emanuil Rusev
# http://erusev.com
#
# For the full license information, view the LICENSE file that was distributed
# with this source code.
#
#
class Parsedown
{
# ~
const version = '1.6.0';
# ~
function text($text)
{
# make sure no definitions are set
$this->DefinitionData = array();
# standardize line breaks
$text = str_replace(array("\r\n", "\r"), "\n", $text);
# remove surrounding line breaks
$text = trim($text, "\n");
# split text into lines
$lines = explode("\n", $text);
# iterate through lines to identify blocks
$markup = $this->lines($lines);
# trim line breaks
$markup = trim($markup, "\n");
return $markup;
}
#
# Setters
#
function setBreaksEnabled($breaksEnabled)
{
$this->breaksEnabled = $breaksEnabled;
return $this;
}
protected $breaksEnabled;
function setMarkupEscaped($markupEscaped)
{
$this->markupEscaped = $markupEscaped;
return $this;
}
protected $markupEscaped;
function setUrlsLinked($urlsLinked)
{
$this->urlsLinked = $urlsLinked;
return $this;
}
protected $urlsLinked = true;
#
# Lines
#
protected $BlockTypes = array(
'#' => array('Header'),
'*' => array('Rule', 'List'),
'+' => array('List'),
'-' => array('SetextHeader', 'Table', 'Rule', 'List'),
'0' => array('List'),
'1' => array('List'),
'2' => array('List'),
'3' => array('List'),
'4' => array('List'),
'5' => array('List'),
'6' => array('List'),
'7' => array('List'),
'8' => array('List'),
'9' => array('List'),
':' => array('Table'),
'<' => array('Comment', 'Markup'),
'=' => array('SetextHeader'),
'>' => array('Quote'),
'[' => array('Reference'),
'_' => array('Rule'),
'`' => array('FencedCode'),
'|' => array('Table'),
'~' => array('FencedCode'),
);
# ~
protected $unmarkedBlockTypes = array(
'Code',
);
#
# Blocks
#
protected function lines(array $lines)
{
$CurrentBlock = null;
foreach ($lines as $line)
{
if (chop($line) === '')
{
if (isset($CurrentBlock))
{
$CurrentBlock['interrupted'] = true;
}
continue;
}
if (strpos($line, "\t") !== false)
{
$parts = explode("\t", $line);
$line = $parts[0];
unset($parts[0]);
foreach ($parts as $part)
{
$shortage = 4 - mb_strlen($line, 'utf-8') % 4;
$line .= str_repeat(' ', $shortage);
$line .= $part;
}
}
$indent = 0;
while (isset($line[$indent]) and $line[$indent] === ' ')
{
$indent ++;
}
$text = $indent > 0 ? substr($line, $indent) : $line;
# ~
$Line = array('body' => $line, 'indent' => $indent, 'text' => $text);
# ~
if (isset($CurrentBlock['continuable']))
{
$Block = $this->{'block'.$CurrentBlock['type'].'Continue'}($Line, $CurrentBlock);
if (isset($Block))
{
$CurrentBlock = $Block;
continue;
}
else
{
if ($this->isBlockCompletable($CurrentBlock['type']))
{
$CurrentBlock = $this->{'block'.$CurrentBlock['type'].'Complete'}($CurrentBlock);
}
}
}
# ~
$marker = $text[0];
# ~
$blockTypes = $this->unmarkedBlockTypes;
if (isset($this->BlockTypes[$marker]))
{
foreach ($this->BlockTypes[$marker] as $blockType)
{
$blockTypes []= $blockType;
}
}
#
# ~
foreach ($blockTypes as $blockType)
{
$Block = $this->{'block'.$blockType}($Line, $CurrentBlock);
if (isset($Block))
{
$Block['type'] = $blockType;
if ( ! isset($Block['identified']))
{
$Blocks []= $CurrentBlock;
$Block['identified'] = true;
}
if ($this->isBlockContinuable($blockType))
{
$Block['continuable'] = true;
}
$CurrentBlock = $Block;
continue 2;
}
}
# ~
if (isset($CurrentBlock) and ! isset($CurrentBlock['type']) and ! isset($CurrentBlock['interrupted']))
{
$CurrentBlock['element']['text'] .= "\n".$text;
}
else
{
$Blocks []= $CurrentBlock;
$CurrentBlock = $this->paragraph($Line);
$CurrentBlock['identified'] = true;
}
}
# ~
if (isset($CurrentBlock['continuable']) and $this->isBlockCompletable($CurrentBlock['type']))
{
$CurrentBlock = $this->{'block'.$CurrentBlock['type'].'Complete'}($CurrentBlock);
}
# ~
$Blocks []= $CurrentBlock;
unset($Blocks[0]);
# ~
$markup = '';
foreach ($Blocks as $Block)
{
if (isset($Block['hidden']))
{
continue;
}
$markup .= "\n";
$markup .= isset($Block['markup']) ? $Block['markup'] : $this->element($Block['element']);
}
$markup .= "\n";
# ~
return $markup;
}
protected function isBlockContinuable($Type)
{
return method_exists($this, 'block'.$Type.'Continue');
}
protected function isBlockCompletable($Type)
{
return method_exists($this, 'block'.$Type.'Complete');
}
#
# Code
protected function blockCode($Line, $Block = null)
{
if (isset($Block) and ! isset($Block['type']) and ! isset($Block['interrupted']))
{
return;
}
if ($Line['indent'] >= 4)
{
$text = substr($Line['body'], 4);
$Block = array(
'element' => array(
'name' => 'pre',
'handler' => 'element',
'text' => array(
'name' => 'code',
'text' => $text,
),
),
);
return $Block;
}
}
protected function blockCodeContinue($Line, $Block)
{
if ($Line['indent'] >= 4)
{
if (isset($Block['interrupted']))
{
$Block['element']['text']['text'] .= "\n";
unset($Block['interrupted']);
}
$Block['element']['text']['text'] .= "\n";
$text = substr($Line['body'], 4);
$Block['element']['text']['text'] .= $text;
return $Block;
}
}
protected function blockCodeComplete($Block)
{
$text = $Block['element']['text']['text'];
$text = htmlspecialchars($text, ENT_NOQUOTES, 'UTF-8');
$Block['element']['text']['text'] = $text;
return $Block;
}
#
# Comment
protected function blockComment($Line)
{
if ($this->markupEscaped)
{
return;
}
if (isset($Line['text'][3]) and $Line['text'][3] === '-' and $Line['text'][2] === '-' and $Line['text'][1] === '!')
{
$Block = array(
'markup' => $Line['body'],
);
if (preg_match('/-->$/', $Line['text']))
{
$Block['closed'] = true;
}
return $Block;
}
}
protected function blockCommentContinue($Line, array $Block)
{
if (isset($Block['closed']))
{
return;
}
$Block['markup'] .= "\n" . $Line['body'];
if (preg_match('/-->$/', $Line['text']))
{
$Block['closed'] = true;
}
return $Block;
}
#
# Fenced Code
protected function blockFencedCode($Line)
{
if (preg_match('/^['.$Line['text'][0].']{3,}[ ]*([\w-]+)?[ ]*$/', $Line['text'], $matches))
{
$Element = array(
'name' => 'code',
'text' => '',
);
if (isset($matches[1]))
{
$class = 'language-'.$matches[1];
$Element['attributes'] = array(
'class' => $class,
);
}
$Block = array(
'char' => $Line['text'][0],
'element' => array(
'name' => 'pre',
'handler' => 'element',
'text' => $Element,
),
);
return $Block;
}
}
protected function blockFencedCodeContinue($Line, $Block)
{
if (isset($Block['complete']))
{
return;
}
if (isset($Block['interrupted']))
{
$Block['element']['text']['text'] .= "\n";
unset($Block['interrupted']);
}
if (preg_match('/^'.$Block['char'].'{3,}[ ]*$/', $Line['text']))
{
$Block['element']['text']['text'] = substr($Block['element']['text']['text'], 1);
$Block['complete'] = true;
return $Block;
}
$Block['element']['text']['text'] .= "\n".$Line['body'];;
return $Block;
}
protected function blockFencedCodeComplete($Block)
{
$text = $Block['element']['text']['text'];
$text = htmlspecialchars($text, ENT_NOQUOTES, 'UTF-8');
$Block['element']['text']['text'] = $text;
return $Block;
}
#
# Header
protected function blockHeader($Line)
{
if (isset($Line['text'][1]))
{
$level = 1;
while (isset($Line['text'][$level]) and $Line['text'][$level] === '#')
{
$level ++;
}
if ($level > 6)
{
return;
}
$text = trim($Line['text'], '# ');
$Block = array(
'element' => array(
'name' => 'h' . min(6, $level),
'text' => $text,
'handler' => 'line',
),
);
return $Block;
}
}
#
# List
protected function blockList($Line)
{
list($name, $pattern) = $Line['text'][0] <= '-' ? array('ul', '[*+-]') : array('ol', '[0-9]+[.]');
if (preg_match('/^('.$pattern.'[ ]+)(.*)/', $Line['text'], $matches))
{
$Block = array(
'indent' => $Line['indent'],
'pattern' => $pattern,
'element' => array(
'name' => $name,
'handler' => 'elements',
),
);
$Block['li'] = array(
'name' => 'li',
'handler' => 'li',
'text' => array(
$matches[2],
),
);
$Block['element']['text'] []= & $Block['li'];
return $Block;
}
}
protected function blockListContinue($Line, array $Block)
{
if ($Block['indent'] === $Line['indent'] and preg_match('/^'.$Block['pattern'].'(?:[ ]+(.*)|$)/', $Line['text'], $matches))
{
if (isset($Block['interrupted']))
{
$Block['li']['text'] []= '';
unset($Block['interrupted']);
}
unset($Block['li']);
$text = isset($matches[1]) ? $matches[1] : '';
$Block['li'] = array(
'name' => 'li',
'handler' => 'li',
'text' => array(
$text,
),
);
$Block['element']['text'] []= & $Block['li'];
return $Block;
}
if ($Line['text'][0] === '[' and $this->blockReference($Line))
{
return $Block;
}
if ( ! isset($Block['interrupted']))
{
$text = preg_replace('/^[ ]{0,4}/', '', $Line['body']);
$Block['li']['text'] []= $text;
return $Block;
}
if ($Line['indent'] > 0)
{
$Block['li']['text'] []= '';
$text = preg_replace('/^[ ]{0,4}/', '', $Line['body']);
$Block['li']['text'] []= $text;
unset($Block['interrupted']);
return $Block;
}
}
#
# Quote
protected function blockQuote($Line)
{
if (preg_match('/^>[ ]?(.*)/', $Line['text'], $matches))
{
$Block = array(
'element' => array(
'name' => 'blockquote',
'handler' => 'lines',
'text' => (array) $matches[1],
),
);
return $Block;
}
}
protected function blockQuoteContinue($Line, array $Block)
{
if ($Line['text'][0] === '>' and preg_match('/^>[ ]?(.*)/', $Line['text'], $matches))
{
if (isset($Block['interrupted']))
{
$Block['element']['text'] []= '';
unset($Block['interrupted']);
}
$Block['element']['text'] []= $matches[1];
return $Block;
}
if ( ! isset($Block['interrupted']))
{
$Block['element']['text'] []= $Line['text'];
return $Block;
}
}
#
# Rule
protected function blockRule($Line)
{
if (preg_match('/^(['.$Line['text'][0].'])([ ]*\1){2,}[ ]*$/', $Line['text']))
{
$Block = array(
'element' => array(
'name' => 'hr'
),
);
return $Block;
}
}
#
# Setext
protected function blockSetextHeader($Line, array $Block = null)
{
if ( ! isset($Block) or isset($Block['type']) or isset($Block['interrupted']))
{
return;
}
if (chop($Line['text'], $Line['text'][0]) === '')
{
$Block['element']['name'] = $Line['text'][0] === '=' ? 'h1' : 'h2';
return $Block;
}
}
#
# Markup
protected function blockMarkup($Line)
{
if ($this->markupEscaped)
{
return;
}
if (preg_match('/^<(\w*)(?:[ ]*'.$this->regexHtmlAttribute.')*[ ]*(\/)?>/', $Line['text'], $matches))
{
$element = strtolower($matches[1]);
if (in_array($element, $this->textLevelElements))
{
return;
}
$Block = array(
'name' => $matches[1],
'depth' => 0,
'markup' => $Line['text'],
);
$length = strlen($matches[0]);
$remainder = substr($Line['text'], $length);
if (trim($remainder) === '')
{
if (isset($matches[2]) or in_array($matches[1], $this->voidElements))
{
$Block['closed'] = true;
$Block['void'] = true;
}
}
else
{
if (isset($matches[2]) or in_array($matches[1], $this->voidElements))
{
return;
}
if (preg_match('/<\/'.$matches[1].'>[ ]*$/i', $remainder))
{
$Block['closed'] = true;
}
}
return $Block;
}
}
protected function blockMarkupContinue($Line, array $Block)
{
if (isset($Block['closed']))
{
return;
}
if (preg_match('/^<'.$Block['name'].'(?:[ ]*'.$this->regexHtmlAttribute.')*[ ]*>/i', $Line['text'])) # open
{
$Block['depth'] ++;
}
if (preg_match('/(.*?)<\/'.$Block['name'].'>[ ]*$/i', $Line['text'], $matches)) # close
{
if ($Block['depth'] > 0)
{
$Block['depth'] --;
}
else
{
$Block['closed'] = true;
}
}
if (isset($Block['interrupted']))
{
$Block['markup'] .= "\n";
unset($Block['interrupted']);
}
$Block['markup'] .= "\n".$Line['body'];
return $Block;
}
#
# Reference
protected function blockReference($Line)
{
if (preg_match('/^\[(.+?)\]:[ ]*<?(\S+?)>?(?:[ ]+["\'(](.+)["\')])?[ ]*$/', $Line['text'], $matches))
{
$id = strtolower($matches[1]);
$Data = array(
'url' => $matches[2],
'title' => null,
);
if (isset($matches[3]))
{
$Data['title'] = $matches[3];
}
$this->DefinitionData['Reference'][$id] = $Data;
$Block = array(
'hidden' => true,
);
return $Block;
}
}
#
# Table
protected function blockTable($Line, array $Block = null)
{
if ( ! isset($Block) or isset($Block['type']) or isset($Block['interrupted']))
{
return;
}
if (strpos($Block['element']['text'], '|') !== false and chop($Line['text'], ' -:|') === '')
{
$alignments = array();
$divider = $Line['text'];
$divider = trim($divider);
$divider = trim($divider, '|');
$dividerCells = explode('|', $divider);
foreach ($dividerCells as $dividerCell)
{
$dividerCell = trim($dividerCell);
if ($dividerCell === '')
{
continue;
}
$alignment = null;
if ($dividerCell[0] === ':')
{
$alignment = 'left';
}
if (substr($dividerCell, - 1) === ':')
{
$alignment = $alignment === 'left' ? 'center' : 'right';
}
$alignments []= $alignment;
}
# ~
$HeaderElements = array();
$header = $Block['element']['text'];
$header = trim($header);
$header = trim($header, '|');
$headerCells = explode('|', $header);
foreach ($headerCells as $index => $headerCell)
{
$headerCell = trim($headerCell);
$HeaderElement = array(
'name' => 'th',
'text' => $headerCell,
'handler' => 'line',
);
if (isset($alignments[$index]))
{
$alignment = $alignments[$index];
$HeaderElement['attributes'] = array(
'style' => 'text-align: '.$alignment.';',
);
}
$HeaderElements []= $HeaderElement;
}
# ~
$Block = array(
'alignments' => $alignments,
'identified' => true,
'element' => array(
'name' => 'table',
'handler' => 'elements',
),
);
$Block['element']['text'] []= array(
'name' => 'thead',
'handler' => 'elements',
);
$Block['element']['text'] []= array(
'name' => 'tbody',
'handler' => 'elements',
'text' => array(),
);
$Block['element']['text'][0]['text'] []= array(
'name' => 'tr',
'handler' => 'elements',
'text' => $HeaderElements,
);
return $Block;
}
}
protected function blockTableContinue($Line, array $Block)
{
if (isset($Block['interrupted']))
{
return;
}
if ($Line['text'][0] === '|' or strpos($Line['text'], '|'))
{
$Elements = array();
$row = $Line['text'];
$row = trim($row);
$row = trim($row, '|');
preg_match_all('/(?:(\\\\[|])|[^|`]|`[^`]+`|`)+/', $row, $matches);
foreach ($matches[0] as $index => $cell)
{
$cell = trim($cell);
$Element = array(
'name' => 'td',
'handler' => 'line',
'text' => $cell,
);
if (isset($Block['alignments'][$index]))
{
$Element['attributes'] = array(
'style' => 'text-align: '.$Block['alignments'][$index].';',
);
}
$Elements []= $Element;
}
$Element = array(
'name' => 'tr',
'handler' => 'elements',
'text' => $Elements,
);
$Block['element']['text'][1]['text'] []= $Element;
return $Block;
}
}
#
# ~
#
protected function paragraph($Line)
{
$Block = array(
'element' => array(
'name' => 'p',
'text' => $Line['text'],
'handler' => 'line',
),
);
return $Block;
}
#
# Inline Elements
#
protected $InlineTypes = array(
'"' => array('SpecialCharacter'),
'!' => array('Image'),
'&' => array('SpecialCharacter'),
'*' => array('Emphasis'),
':' => array('Url'),
'<' => array('UrlTag', 'EmailTag', 'Markup', 'SpecialCharacter'),
'>' => array('SpecialCharacter'),
'[' => array('Link'),
'_' => array('Emphasis'),
'`' => array('Code'),
'~' => array('Strikethrough'),
'\\' => array('EscapeSequence'),
);
# ~
protected $inlineMarkerList = '!"*_&[:<>`~\\';
#
# ~
#
public function line($text)
{
$markup = '';
# $excerpt is based on the first occurrence of a marker
while ($excerpt = strpbrk($text, $this->inlineMarkerList))
{
$marker = $excerpt[0];
$markerPosition = strpos($text, $marker);
$Excerpt = array('text' => $excerpt, 'context' => $text);
foreach ($this->InlineTypes[$marker] as $inlineType)
{
$Inline = $this->{'inline'.$inlineType}($Excerpt);
if ( ! isset($Inline))
{
continue;
}
# makes sure that the inline belongs to "our" marker
if (isset($Inline['position']) and $Inline['position'] > $markerPosition)
{
continue;
}
# sets a default inline position
if ( ! isset($Inline['position']))
{
$Inline['position'] = $markerPosition;
}
# the text that comes before the inline
$unmarkedText = substr($text, 0, $Inline['position']);
# compile the unmarked text
$markup .= $this->unmarkedText($unmarkedText);
# compile the inline
$markup .= isset($Inline['markup']) ? $Inline['markup'] : $this->element($Inline['element']);
# remove the examined text
$text = substr($text, $Inline['position'] + $Inline['extent']);
continue 2;
}
# the marker does not belong to an inline
$unmarkedText = substr($text, 0, $markerPosition + 1);
$markup .= $this->unmarkedText($unmarkedText);
$text = substr($text, $markerPosition + 1);
}
$markup .= $this->unmarkedText($text);
return $markup;
}
#
# ~
#
protected function inlineCode($Excerpt)
{
$marker = $Excerpt['text'][0];
if (preg_match('/^('.$marker.'+)[ ]*(.+?)[ ]*(?<!'.$marker.')\1(?!'.$marker.')/s', $Excerpt['text'], $matches))
{
$text = $matches[2];
$text = htmlspecialchars($text, ENT_NOQUOTES, 'UTF-8');
$text = preg_replace("/[ ]*\n/", ' ', $text);
return array(
'extent' => strlen($matches[0]),
'element' => array(
'name' => 'code',
'text' => $text,
),
);
}
}
protected function inlineEmailTag($Excerpt)
{
if (strpos($Excerpt['text'], '>') !== false and preg_match('/^<((mailto:)?\S+?@\S+?)>/i', $Excerpt['text'], $matches))
{
$url = $matches[1];
if ( ! isset($matches[2]))
{
$url = 'mailto:' . $url;
}
return array(
'extent' => strlen($matches[0]),
'element' => array(
'name' => 'a',
'text' => $matches[1],
'attributes' => array(
'href' => $url,
),
),
);
}
}
protected function inlineEmphasis($Excerpt)
{
if ( ! isset($Excerpt['text'][1]))
{
return;
}
$marker = $Excerpt['text'][0];
if ($Excerpt['text'][1] === $marker and preg_match($this->StrongRegex[$marker], $Excerpt['text'], $matches))
{
$emphasis = 'strong';
}
elseif (preg_match($this->EmRegex[$marker], $Excerpt['text'], $matches))
{
$emphasis = 'em';
}
else
{
return;
}
return array(
'extent' => strlen($matches[0]),
'element' => array(
'name' => $emphasis,
'handler' => 'line',
'text' => $matches[1],
),
);
}
protected function inlineEscapeSequence($Excerpt)
{
if (isset($Excerpt['text'][1]) and in_array($Excerpt['text'][1], $this->specialCharacters))
{
return array(
'markup' => $Excerpt['text'][1],
'extent' => 2,
);
}
}
protected function inlineImage($Excerpt)
{
if ( ! isset($Excerpt['text'][1]) or $Excerpt['text'][1] !== '[')
{
return;
}
$Excerpt['text']= substr($Excerpt['text'], 1);
$Link = $this->inlineLink($Excerpt);
if ($Link === null)
{
return;
}
$Inline = array(
'extent' => $Link['extent'] + 1,
'element' => array(
'name' => 'img',
'attributes' => array(
'src' => $Link['element']['attributes']['href'],
'alt' => $Link['element']['text'],
),
),
);
$Inline['element']['attributes'] += $Link['element']['attributes'];
unset($Inline['element']['attributes']['href']);
return $Inline;
}
protected function inlineLink($Excerpt)
{
$Element = array(
'name' => 'a',
'handler' => 'line',
'text' => null,
'attributes' => array(
'href' => null,
'title' => null,
),
);
$extent = 0;
$remainder = $Excerpt['text'];
if (preg_match('/\[((?:[^][]|(?R))*)\]/', $remainder, $matches))
{
$Element['text'] = $matches[1];
$extent += strlen($matches[0]);
$remainder = substr($remainder, $extent);
}
else
{
return;
}
if (preg_match('/^[(]((?:[^ ()]|[(][^ )]+[)])+)(?:[ ]+("[^"]*"|\'[^\']*\'))?[)]/', $remainder, $matches))
{
$Element['attributes']['href'] = $matches[1];
if (isset($matches[2]))
{
$Element['attributes']['title'] = substr($matches[2], 1, - 1);
}
$extent += strlen($matches[0]);
}
else
{
if (preg_match('/^\s*\[(.*?)\]/', $remainder, $matches))
{
$definition = strlen($matches[1]) ? $matches[1] : $Element['text'];
$definition = strtolower($definition);
$extent += strlen($matches[0]);
}
else
{
$definition = strtolower($Element['text']);
}
if ( ! isset($this->DefinitionData['Reference'][$definition]))
{
return;
}
$Definition = $this->DefinitionData['Reference'][$definition];
$Element['attributes']['href'] = $Definition['url'];
$Element['attributes']['title'] = $Definition['title'];
}
$Element['attributes']['href'] = str_replace(array('&', '<'), array('&amp;', '&lt;'), $Element['attributes']['href']);
return array(
'extent' => $extent,
'element' => $Element,
);
}
protected function inlineMarkup($Excerpt)
{
if ($this->markupEscaped or strpos($Excerpt['text'], '>') === false)
{
return;
}
if ($Excerpt['text'][1] === '/' and preg_match('/^<\/\w*[ ]*>/s', $Excerpt['text'], $matches))
{
return array(
'markup' => $matches[0],
'extent' => strlen($matches[0]),
);
}
if ($Excerpt['text'][1] === '!' and preg_match('/^<!---?[^>-](?:-?[^-])*-->/s', $Excerpt['text'], $matches))
{
return array(
'markup' => $matches[0],
'extent' => strlen($matches[0]),
);
}
if ($Excerpt['text'][1] !== ' ' and preg_match('/^<\w*(?:[ ]*'.$this->regexHtmlAttribute.')*[ ]*\/?>/s', $Excerpt['text'], $matches))
{
return array(
'markup' => $matches[0],
'extent' => strlen($matches[0]),
);
}
}
protected function inlineSpecialCharacter($Excerpt)
{
if ($Excerpt['text'][0] === '&' and ! preg_match('/^&#?\w+;/', $Excerpt['text']))
{
return array(
'markup' => '&amp;',
'extent' => 1,
);
}
$SpecialCharacter = array('>' => 'gt', '<' => 'lt', '"' => 'quot');
if (isset($SpecialCharacter[$Excerpt['text'][0]]))
{
return array(
'markup' => '&'.$SpecialCharacter[$Excerpt['text'][0]].';',
'extent' => 1,
);
}
}
protected function inlineStrikethrough($Excerpt)
{
if ( ! isset($Excerpt['text'][1]))
{
return;
}
if ($Excerpt['text'][1] === '~' and preg_match('/^~~(?=\S)(.+?)(?<=\S)~~/', $Excerpt['text'], $matches))
{
return array(
'extent' => strlen($matches[0]),
'element' => array(
'name' => 'del',
'text' => $matches[1],
'handler' => 'line',
),
);
}
}
protected function inlineUrl($Excerpt)
{
if ($this->urlsLinked !== true or ! isset($Excerpt['text'][2]) or $Excerpt['text'][2] !== '/')
{
return;
}
if (preg_match('/\bhttps?:[\/]{2}[^\s<]+\b\/*/ui', $Excerpt['context'], $matches, PREG_OFFSET_CAPTURE))
{
$Inline = array(
'extent' => strlen($matches[0][0]),
'position' => $matches[0][1],
'element' => array(
'name' => 'a',
'text' => $matches[0][0],
'attributes' => array(
'href' => $matches[0][0],
),
),
);
return $Inline;
}
}
protected function inlineUrlTag($Excerpt)
{
if (strpos($Excerpt['text'], '>') !== false and preg_match('/^<(\w+:\/{2}[^ >]+)>/i', $Excerpt['text'], $matches))
{
$url = str_replace(array('&', '<'), array('&amp;', '&lt;'), $matches[1]);
return array(
'extent' => strlen($matches[0]),
'element' => array(
'name' => 'a',
'text' => $url,
'attributes' => array(
'href' => $url,
),
),
);
}
}
# ~
protected function unmarkedText($text)
{
if ($this->breaksEnabled)
{
$text = preg_replace('/[ ]*\n/', "<br />\n", $text);
}
else
{
$text = preg_replace('/(?:[ ][ ]+|[ ]*\\\\)\n/', "<br />\n", $text);
$text = str_replace(" \n", "\n", $text);
}
return $text;
}
#
# Handlers
#
protected function element(array $Element)
{
$markup = '<'.$Element['name'];
if (isset($Element['attributes']))
{
foreach ($Element['attributes'] as $name => $value)
{
if ($value === null)
{
continue;
}
$markup .= ' '.$name.'="'.$value.'"';
}
}
if (isset($Element['text']))
{
$markup .= '>';
if (isset($Element['handler']))
{
$markup .= $this->{$Element['handler']}($Element['text']);
}
else
{
$markup .= $Element['text'];
}
$markup .= '</'.$Element['name'].'>';
}
else
{
$markup .= ' />';
}
return $markup;
}
protected function elements(array $Elements)
{
$markup = '';
foreach ($Elements as $Element)
{
$markup .= "\n" . $this->element($Element);
}
$markup .= "\n";
return $markup;
}
# ~
protected function li($lines)
{
$markup = $this->lines($lines);
$trimmedMarkup = trim($markup);
if ( ! in_array('', $lines) and substr($trimmedMarkup, 0, 3) === '<p>')
{
$markup = $trimmedMarkup;
$markup = substr($markup, 3);
$position = strpos($markup, "</p>");
$markup = substr_replace($markup, '', $position, 4);
}
return $markup;
}
#
# Deprecated Methods
#
function parse($text)
{
$markup = $this->text($text);
return $markup;
}
#
# Static Methods
#
static function instance($name = 'default')
{
if (isset(self::$instances[$name]))
{
return self::$instances[$name];
}
$instance = new static();
self::$instances[$name] = $instance;
return $instance;
}
private static $instances = array();
#
# Fields
#
protected $DefinitionData;
#
# Read-Only
protected $specialCharacters = array(
'\\', '`', '*', '_', '{', '}', '[', ']', '(', ')', '>', '#', '+', '-', '.', '!', '|',
);
protected $StrongRegex = array(
'*' => '/^[*]{2}((?:\\\\\*|[^*]|[*][^*]*[*])+?)[*]{2}(?![*])/s',
'_' => '/^__((?:\\\\_|[^_]|_[^_]*_)+?)__(?!_)/us',
);
protected $EmRegex = array(
'*' => '/^[*]((?:\\\\\*|[^*]|[*][*][^*]+?[*][*])+?)[*](?![*])/s',
'_' => '/^_((?:\\\\_|[^_]|__[^_]*__)+?)_(?!_)\b/us',
);
protected $regexHtmlAttribute = '[a-zA-Z_:][\w:.-]*(?:\s*=\s*(?:[^"\'=<>`\s]+|"[^"]*"|\'[^\']*\'))?';
protected $voidElements = array(
'area', 'base', 'br', 'col', 'command', 'embed', 'hr', 'img', 'input', 'link', 'meta', 'param', 'source',
);
protected $textLevelElements = array(
'a', 'br', 'bdo', 'abbr', 'blink', 'nextid', 'acronym', 'basefont',
'b', 'em', 'big', 'cite', 'small', 'spacer', 'listing',
'i', 'rp', 'del', 'code', 'strike', 'marquee',
'q', 'rt', 'ins', 'font', 'strong',
's', 'tt', 'sub', 'mark',
'u', 'xm', 'sup', 'nobr',
'var', 'ruby',
'wbr', 'span',
'time',
);
}
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