From 3c5741c84613f5361d7f04dd461b9153c5ef3705 Mon Sep 17 00:00:00 2001
From: krangelov <kr.angelov@gmail.com>
Date: Tue, 5 Oct 2021 13:36:21 +0200
Subject: [PATCH] fix in str_char

---
 src/runtime/c/pgf/expr.cxx | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/runtime/c/pgf/expr.cxx b/src/runtime/c/pgf/expr.cxx
index 8c0c5633f..dc8f4b316 100644
--- a/src/runtime/c/pgf/expr.cxx
+++ b/src/runtime/c/pgf/expr.cxx
@@ -339,6 +339,8 @@ void PgfExprParser::str_char()
         case 't':
             putc('\t');
             break;
+        case '0':
+            puts("\0");
         default:
             return;
         }