fix empty strings

diff --git a/lib/gdi/font.cpp b/lib/gdi/font.cpp
index f7c1bca..77c8de9 100644 (file)
--- a/lib/gdi/font.cpp
+++ b/lib/gdi/font.cpp
@@ -470,9 +470,9 @@ int eTextPara::renderString(const char *string, int rflags)
        if (string)
                uc_string.reserve(strlen(string));
        
-       const char *p = string;
+       const char *p = string ? string : "";
 
-       while(p)
+       while (*p)
        {
                unsigned int unicode=(unsigned char)*p++;