An invalid character set was encountered in the current pattern.
#3027 Compile-time error
An invalid character set was encountered in the current pattern.
Additional Information
The subpattern WHITE-SPACE cannot appear inside a character
set because the current NEWLINE sequence contains 'X' characters.
or
The format item '%n' cannot appear inside a character set because the
current NEWLINE sequence contains 'X' characters.
where X is the number of characters in the sequence.
or
The second character, of value 'X', is less than the first character,
with value 'Y'.
where X and Y are strings used in the form "X to Y".
Recovery
Compilation continues but no compiled source code file will be saved.
Explanation
The subpattern WHITE-SPACE can appear inside a character set only
when the NEWLINE sequence is 1 character long (the default).