Compaq Fortran supports the following characters:
|blank or <Tab>||Blank (space) or tab||:||Colon|
|=||Equal sign||!||Exclamation point|
|+||Plus sign||"||Quotation mark|
|-||Minus sign||%||Percent sign|
|(||Left parenthesis||<||Less than|
|)||Right parenthesis||>||Greater than|
|.||Period (decimal point)||$||Dollar sign (currency symbol)|
Printable characters include the tab character (09 hex), ASCII characters with codes in the range 20(hex) through 7E(hex), and characters in the DEC Multinational Extension to the ASCII Character Set with codes in the range A1(hex) through FE(hex).
Printable characters that are not in the Fortran 95/90 character set can only appear in comments, character constants, Hollerith constants, character string edit descriptors, and input/output records.
Uppercase and lowercase letters are treated as equivalent when used to specify program behavior (except in character constants and Hollerith constants).
For More Information: