/**
* Returns true if the specified key produces a glyph.
*
* @param keyCode The key code.
* @return True if the key is a printing key.
*/
public boolean isPrintingKey(int keyCode) {
int type = Character.getType(nativeGetDisplayLabel(mPtr, keyCode));
switch (type) {
case Character.SPACE_SEPARATOR:
case Character.LINE_SEPARATOR:
case Character.PARAGRAPH_SEPARATOR:
case Character.CONTROL:
case Character.FORMAT:
return false;
default:
return true;
}
}
public static boolean isPrintable(char c) {
if (Character.isJavaIdentifierStart(c)) {
// Letters and $ _
return true;
}
if (Character.isDigit(c)) {
return true;
}
switch (Character.getType(c)) {
case Character.MODIFIER_SYMBOL:
return true; // ` ^
case Character.DASH_PUNCTUATION:
return true; // -
case Character.MATH_SYMBOL:
return true; // = ~ + | < >
case Character.OTHER_PUNCTUATION:
return true; // !@#%&*;':",./?
case Character.START_PUNCTUATION:
return true; // ( [ {
case Character.END_PUNCTUATION:
return true; // ) ] }
}
return false;
}