CharRange uses an unassigned static character, UNSET, as a flag value
for testing if the range is a range or a single value.
This looks a little odd to me. I had the distinct impression that
accessing an unassigned value was an error. However, the comparison
works. I'm just not sure it's working as intended, and won't fail to
work an a different VM?
relevant code:
/**
* Used internally to represent null in a char.
*/
private static char UNSET;
// ...
/**
* Is this CharRange over many characters
*
* @return boolean true is many characters
*/
public boolean isRange() {
return this.close != UNSET;
}
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