From 1767b21eb219fb9ac332aca9f7c3abecd97b6b39 Mon Sep 17 00:00:00 2001
From: Daniel Lange <DLange@git.local>
Date: Mon, 11 Apr 2016 13:00:25 +0200
Subject: Imported Upstream version 0.8.1+svn149

---
 RichString.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'RichString.c')

diff --git a/RichString.c b/RichString.c
index c397f3f..fbcb17f 100644
--- a/RichString.c
+++ b/RichString.c
@@ -9,6 +9,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <curses.h>
+#include <ctype.h>
 
 #include "debug.h"
 #include <assert.h>
@@ -89,7 +90,8 @@ int RichString_findChar(RichString *this, char c, int start) {
 inline void RichString_appendn(RichString* this, int attrs, char* data_c, int len) {
    int last = MIN(RICHSTRING_MAXLEN - 1, len + this->len);
    for (int i = this->len, j = 0; i < last; i++, j++)
-      this->chstr[i] = data_c[j] | attrs;
+      this->chstr[i] = (isprint(data_c[j]) ? data_c[j] : '?') | attrs;
+
    this->chstr[last] = 0;
    this->len = last;
 }
-- 
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