ISO Pascal reference manual

Appendix A
Non-Fatal Compiler error messages
*ERROR 1 -- this is not recognisable as a Pascal statement
This message is issued when the compiler cannot make any sense of the
input. It may also be generated as a direct result of previous errors which
cause confusion.
PROGRAM fail;
BEGIN
END.
?Garbage
*ERROR 2 -- the name of the program has been left out
No identifier has been found following the reserved word PROGRAM (or
MODULE).
PROGRAM (output);
BEGIN
END.
writeln('no program name');
*ERROR 3 -- the final item in a program must be a full stop
The end of a program (or module) must be marked by the reserved word
`END' followed by a full stop. Sometimes this message is issued when the
compiler has got out of step with the program because of previous errors.
PROGRAM fail;
BEGIN
END;
Pascal Issue 1 47