Friendica Communications Platform (please note that this is a clone of the repository at github, issues are handled there) https://friendi.ca
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friendica/include/html2bbcode.php

127 lines
2.9 KiB

<?php
/**
* html2bbcode
*/
function html2bbcode($s) {
// only keep newlines from source that are within pre tags
$s = stripnl_exceptinpre($s);
// Tags to Find
$htmltags = array(
'/\<pre\>(.*?)\<\/pre\>/is',
'/\<p(.*?)\>/is',
'/\<\/p\>/is',
'/\<b\>(.*?)\<\/b\>/is',
'/\<i\>(.*?)\<\/i\>/is',
'/\<u\>(.*?)\<\/u\>/is',
'/\<ul\>(.*?)\<\/ul\>/is',
'/\<li\>(.*?)\<\/li\>/is',
'/\<img(.*?)width: *([0-9]+)(.*?)height: *([0-9]+)(.*?)src=\"(.*?)\" (.*?)\>/is',
'/\<img(.*?)height: *([0-9]+)(.*?)width: *([0-9]+)(.*?)src=\"(.*?)\" (.*?)\>/is',
'/\<img(.*?)src=\"(.*?)\"(.*?)width: *([0-9]+)(.*?)height: *([0-9]+)(.*?)\>/is',
'/\<img(.*?)src=\"(.*?)\"(.*?)height: *([0-9]+)(.*?)width: *([0-9]+)(.*?)\>/is',
'/\<img(.*?) src=\"(.*?)\" (.*?)\>/is',
'/\<div(.*?)\>(.*?)\<\/div\>/is',
'/\<br(.*?)\>/is',
'/\<strong\>(.*?)\<\/strong\>/is',
'/\<a (.*?)href=\"(.*?)\"(.*?)\>(.*?)\<\/a\>/is',
'/\<code\>(.*?)\<\/code\>/is',
'/\<span style=\"color:(.*?)\"\>(.*?)\<\/span\>/is',
'/\<span style=\"font-size:(.*?)\"\>(.*?)\<\/span\>/is',
'/\<blockquote\>(.*?)\<\/blockquote\>/is',
'/\<video(.*?) src=\"(.*?)\" (.*?)\>(.*?)\<\/video\>/is',
'/\<audio(.*?) src=\"(.*?)\" (.*?)\>(.*?)\<\/audio\>/is',
'/\<iframe(.*?) src=\"(.*?)\" (.*?)\>(.*?)\<\/iframe\>/is',
);
// Replace with
$bbtags = array(
'[code]$1[/code]',
'',
"\n",
'[b]$1[/b]',
'[i]$1[/i]',
'[u]$1[/u]',
'[list]$1[/list]',
'[*]$1',
'[img=$2x$4]$6[/img]',
'[img=$4x$2]$6[/img]',
'[img=$4x$6]$2[/img]',
'[img=$6x$4]$2[/img]',
'[img]$2[/img]',
'$2',
"\n",
'[b]$1[/b]',
'[url=$2]$4[/url]',
'[code]$1[/code]',
'[color="$1"]$2[/color]',
'[size=$1]$2[/size]',
'[quote]$1[/quote]',
'[video]$1[/video]',
'[audio]$1[/audio]',
'[iframe]$1[/iframe]',
);
// Replace $htmltags in $text with $bbtags
$text = preg_replace ($htmltags, $bbtags, $s);
call_hooks('html2bbcode', $text);
// Strip all other HTML tags
$text = strip_tags($text);
return $text;
}
function stripnl_exceptinpre($string)
{
// First, check for <pre> tag
if(strpos($string, '<pre>') === false)
{
return str_replace("\n","", $string);
}
// If there is a <pre>, we have to split by line
// and manually replace the linebreaks
$strArr=explode("\n", $string);
$output="";
$preFound=false;
// Loop over each line
foreach($strArr as $line)
{ // See if the line has a <pre>. If it does, set $preFound to true
if(strpos($line, "<pre>") !== false)
{
$preFound=true;
}
elseif(strpos($line, "</pre>") !== false)
{
$preFound=false;
}
// If we are in a pre tag, add line and also add \n, else add the line without \n
if($preFound)
{
$output .= $line . "\n";
}
else
{
$output .= $line ;
}
}
return $output;
}