1 files changed, 14 insertions, 0 deletions
diff --git a/src/main/java/com/keuin/psmb4j/util/StringUtils.java b/src/main/java/com/keuin/psmb4j/util/StringUtils.java
new file mode 100644
index 0000000..036a560
--- /dev/null
+++ b/src/main/java/com/keuin/psmb4j/util/StringUtils.java
@@ -0,0 +1,14 @@
+package com.keuin.psmb4j.util;
+
+import java.nio.charset.StandardCharsets;
+
+public class StringUtils {
+    /**
+     * If the string can be encoded into binary using ASCII.
+     */
+    @SuppressWarnings("BooleanMethodIsAlwaysInverted")
+    public static boolean isPureAscii(String v) {
+        return StandardCharsets.US_ASCII.newEncoder().canEncode(v);
+        // or "ISO-8859-1" for ISO Latin 1
+    }
+}