This switch controls whether or not language keywords are case sensitive. By default, this flag is turned off; thus the spellings SEGMENT, Segment, and segment all refer to the same keyword. Turning this switch on would render the three spellings separate and distinct, and only the uppercase variant would be recognized as a keyword.
This option has no effect on user identifiers (see Scs - Control Case Sensitivity for Symbol Names) or processor mnemonics.
┌────┬──────┬─────┬────┬──────────────────────────────────────────────────┐ │Type│Global│Group│File│Default │ ├────┼──────┼─────┼────┼──────────────────────────────────────────────────┤ │S │Yes │Yes │Yes │-Sck (All language keywords are case insensitive) │ └────┴──────┴─────┴────┴──────────────────────────────────────────────────┘