package jetbrains.mps.lang.plugin.typesystem;
/*Generated by MPS */
import org.jetbrains.annotations.Nullable;
public class MnemonicChecker {
@Nullable
public static String check(String caption, String character) {
assert character.length() == 1;
if (!(Character.isLetter(character.charAt(0))) || caption.indexOf(character) == -1) {
return "mnemonic should be a letter contained in caption";
}
return null;
}
}