lowerCaseMode
Determines whether or not word token are automatically lowercased. If the flag argument is true, then the value in the sval field is lowercased whenever a word token is returned (the ttype field has the value TT_WORD) by the nextToken method of this tokenizer.
If the flag argument is false, then the sval field is not modified.
Parameters
fl
true indicates that all word tokens should be lowercased.