1 files changed, 18 insertions, 0 deletions
diff --git a/src/asn1_types/strings/teletexstring.rs b/src/asn1_types/strings/teletexstring.rs
new file mode 100644
index 0000000..2f58804
--- /dev/null
+++ b/src/asn1_types/strings/teletexstring.rs
@@ -0,0 +1,18 @@
+use crate::{asn1_string, TestValidCharset};
+use crate::{Error, Result};
+use alloc::string::String;
+
+asn1_string!(TeletexString);
+
+impl<'a> TestValidCharset for TeletexString<'a> {
+    fn test_valid_charset(i: &[u8]) -> Result<()> {
+        #[allow(clippy::trivially_copy_pass_by_ref)]
+        fn is_visible(b: &u8) -> bool {
+            0x20 <= *b && *b <= 0x7f
+        }
+        if !i.iter().all(is_visible) {
+            return Err(Error::StringInvalidCharset);
+        }
+        Ok(())
+    }
+}