diff --git a/src/blackmisc/stringutils.cpp b/src/blackmisc/stringutils.cpp
index 29893f130..679df1c66 100644
--- a/src/blackmisc/stringutils.cpp
+++ b/src/blackmisc/stringutils.cpp
@@ -21,7 +21,7 @@ namespace BlackMisc
     {
         return removeChars(s, [](QChar c)
         {
-            return c == ' ' || c == ':' || c == '_' || c == '-' || c == '.';
+            return c == u' ' || c == u':' || c == u'_' || c == u'-' || c == u'.';
         });
     }
 
@@ -177,14 +177,7 @@ namespace BlackMisc
     {
         const QString s(candidate.trimmed().toUpper());
         if (s.isEmpty()) { return QString(); }
-        if (s.contains(' '))
-        {
-            return s.left(s.indexOf(' '));
-        }
-        else
-        {
-            return s;
-        }
+        return s.contains(' ') ? s.left(s.indexOf(' ')) : s;
     }
 
     QStringList simpleTextCodecNamesImpl()
diff --git a/src/blackmisc/stringutils.h b/src/blackmisc/stringutils.h
index f547bb61e..2d6f8c3bd 100644
--- a/src/blackmisc/stringutils.h
+++ b/src/blackmisc/stringutils.h
@@ -114,6 +114,12 @@ namespace BlackMisc
         return s.trimmed();
     }
 
+    //! Is 0-9 char, isDigit allows a bunch of more characters
+    inline bool is09(const QChar &c) { return c >= u'0' && c <= u'9'; }
+
+    //! Is 0-9, or ","/";"
+    inline bool is09OrSeparator(const QChar &c) { return is09(c) || c == u',' || c == '.'; }
+
     //! Safe "at" function, returns empty string if index does not exists
     inline const QString &safeAt(const QStringList &stringList, int index)
     {
@@ -128,12 +134,36 @@ namespace BlackMisc
         return !containsChar(testString, [](QChar c) { return !c.isDigit(); });
     }
 
+    //! String with 0-9 only
+    inline bool is09OnlyString(const QString &testString)
+    {
+        return !containsChar(testString, [](QChar c) { return !is09(c); });
+    }
+
+    //! String with 0-9/separator only
+    inline bool is09OrSeparatorOnlyString(const QString &testString)
+    {
+        return !containsChar(testString, [](QChar c) { return !is09OrSeparator(c); });
+    }
+
     //! String only with digits
     inline QString digitOnlyString(const QString &string)
     {
         return removeChars(string, [](QChar c) { return !c.isDigit(); });
     }
 
+    //! String only with 0-9
+    inline QString char09OnlyString(const QString &string)
+    {
+        return removeChars(string, [](QChar c) { return !is09(c); });
+    }
+
+    //! String only with 0-9
+    inline QString char09OrSeparatorOnlyString(const QString &string)
+    {
+        return removeChars(string, [](QChar c) { return !is09OrSeparator(c); });
+    }
+
     //! Return string in apostrophes
     BLACKMISC_EXPORT const QString inApostrophes(const QString &in, bool ignoreEmpty = false);