Fix rtf backslashes

src/Code/Converters/RtfReader.php

@@ -18,7 +18,16 @@ public function fileContentToInternalFormat($file_content, $original_file_conten
     {
         // https://stackoverflow.com/a/63029792/4126621
         $text = preg_replace("/(\{.*\})|}|(\\\\(?!')\S+)/m", '', $original_file_content);
-        $text = trim($text);
+
+        // remove backslashes
+        $lines = mb_split("\n", $text);
+        foreach ($lines as &$line) {
+            $line = trim($line);
+            $line = rtrim($line, '\\');
+        }
+        unset($line);
+        $text = implode("\n", $lines);
+
         return Subtitles::loadFromString($text)->getInternalFormat();
     }
 

tests/files/rtf2.rtf

@@ -0,0 +1,20 @@
+{\rtf1\ansi\ansicpg1252\cocoartf2706
+\cocoatextscaling0\cocoaplatform0{\fonttbl\f0\fswiss\fcharset0 Helvetica;}
+{\colortbl;\red255\green255\blue255;\red255\green255\blue255;\red0\green0\blue0;}
+{\*\expandedcolortbl;;\cssrgb\c100000\c100000\c100000;\cssrgb\c0\c0\c0;}
+\paperw11900\paperh16840\margl1440\margr1440\vieww11520\viewh18500\viewkind0
+\pard\tx720\tx1440\tx2160\tx2880\tx3600\tx4320\tx5040\tx5760\tx6480\tx7200\tx7920\tx8640\pardirnatural\partightenfactor0
+
+\f0\fs24 \cf0 1\
+00:03:43:00 -> 00:03:49:00\
+Reflecting back on the nineteen forties, fifties and sixties\
+2\
+00:03:50:00 -> 00:04:00:00\
+\pard\pardeftab720\partightenfactor0
+
+\fs29\fsmilli14667 \cf0 \cb2 \expnd0\expndtw0\kerning0
+\outl0\strokewidth0 \strokec3 During those times the elders back home were grieving,
+\fs24 \cb1 \kerning1\expnd0\expndtw0 \outl0\strokewidth0 \
+\pard\tx720\tx1440\tx2160\tx2880\tx3600\tx4320\tx5040\tx5760\tx6480\tx7200\tx7920\tx8640\pardirnatural\partightenfactor0
+\cf0 \
+}

tests/formats/RtfTest.php

@@ -8,9 +8,7 @@
 
 class RtfTest extends TestCase
 {
-
     use AdditionalAssertionsTrait;
-
     public function testParsesRtfFile()
     {
         $content = file_get_contents('./tests/files/rtf.rtf');
@@ -19,4 +17,14 @@ public function testParsesRtfFile()
         $this->assertInternalFormatsEqual($expected, $actual);
     }
 
+    public function testClientFileWithBackslashes()
+    {
+        $content = file_get_contents('./tests/files/rtf2.rtf');
+        $actual = Subtitles::loadFromString($content)->getInternalFormat();
+        $expected = (new Subtitles())
+            ->add(223, 229, 'Reflecting back on the nineteen forties, fifties and sixties')
+            ->add(230, 240, 'During those times the elders back home were grieving,')
+            ->getInternalFormat();
+        $this->assertInternalFormatsEqual($expected, $actual);
+    }
 }