From d1f843501f0aee623e7f62556eb978b36360ebe8 Mon Sep 17 00:00:00 2001
From: erikn69 <erikn_69@hotmail.com>
Date: Mon, 23 Sep 2024 13:00:38 -0500
Subject: [PATCH] Support `\t`, `\r` on raw usage, they are printable

---
 src/Mike42/Escpos/PrintBuffers/EscposPrintBuffer.php | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/src/Mike42/Escpos/PrintBuffers/EscposPrintBuffer.php b/src/Mike42/Escpos/PrintBuffers/EscposPrintBuffer.php
index 60382d7..2f60639 100644
--- a/src/Mike42/Escpos/PrintBuffers/EscposPrintBuffer.php
+++ b/src/Mike42/Escpos/PrintBuffers/EscposPrintBuffer.php
@@ -133,8 +133,8 @@ public function writeTextRaw(string $text)
         $outp = str_repeat(self::REPLACEMENT_CHAR, $l);
         for ($i = 0; $i < $l; $i++) {
             $c = substr($text, $i, 1);
-            if ($c == "\r") {
-                /* Skip past Windows line endings (raw usage). */
+            if ($c == "\r" && substr($text, $i + 1, 1) == "\n") {
+                /* Skip past Windows line endings CRLF (raw usage). */
                 continue;
             } elseif (self::asciiCheck($c, true)) {
                 $outp[$j] = $c;
@@ -296,6 +296,12 @@ private static function asciiCheck(string $char, bool $extended = false)
         if ($num == 10) { // New-line (printer will take these)
             return true;
         }
+        if ($num == 13) { // Carriage-return (printer will take these)
+            return true;
+        }
+        if ($num == 9) {  // Horizontal-tab (printer will take these)
+            return true;
+        }
         if ($extended && $num > 127) {
             return true;
         }