From 8dfdbe8f4d174e029fd0556c8410725c46ce0031 Mon Sep 17 00:00:00 2001
From: Mauro Cassani <m.cassani@bestnetwork.it>
Date: Tue, 8 Jun 2021 17:24:11 +0200
Subject: [PATCH] Fix double lt bug (HTMLParser)

---
 src/Filters/Html/HtmlParser.php | 21 +++++----------------
 1 file changed, 5 insertions(+), 16 deletions(-)

diff --git a/src/Filters/Html/HtmlParser.php b/src/Filters/Html/HtmlParser.php
index 964bc92..e0e5d53 100644
--- a/src/Filters/Html/HtmlParser.php
+++ b/src/Filters/Html/HtmlParser.php
@@ -71,15 +71,9 @@ public function transform( $segment ) {
 
         $originalSplit = preg_split( '//u', $segment, -1, PREG_SPLIT_NO_EMPTY );
 
-//        $strippedSplit = preg_split( '//u', str_replace( [ "<", ">" ], "", $segment ), -1, PREG_SPLIT_NO_EMPTY );
-//        if ( $originalSplit == $strippedSplit ) {
-//            return $segment;
-//        }
-
         $state             = static::STATE_PLAINTEXT;
         $html_buffer       = '';
         $plain_text_buffer = '';
-        $depth             = 0;
         $in_quote_char     = '';
         $output            = '';
 
@@ -106,8 +100,10 @@ public function transform( $segment ) {
                             break;
                         }
 
-                        // we're seeing a nested '<'
-                        $depth++;
+                        // if we found a second less than symbol the first one IS NOT a tag,
+                        // treat the html_buffer as plain text and attach to the output
+                        $output .= $this->_fixWrongBuffer( $html_buffer );
+                        $html_buffer = $char;
                         break;
 
                     case '>':
@@ -116,13 +112,6 @@ public function transform( $segment ) {
                             break;
                         }
 
-                        // something like this is happening: '<<>>'
-                        if ( $depth ) {
-                            $depth--;
-
-                            break;
-                        }
-
                         if ( in_array( substr( $html_buffer, 0, 6 ), [ '<scrip', '<style' ] ) ) {
                             $html_buffer .= $char;
                             $state       = static::STATE_JS_CSS;
@@ -234,4 +223,4 @@ public function transform( $segment ) {
 
     }
 
-}
\ No newline at end of file
+}