Gforth Manual
3.2 Syntax
A word is a sequence of arbitrary characters (expcept white
space). Words are separated by white space. E.g., each of the
following lines contains exactly one word:
| | word
!@#$%^&*()
1234567890
5!a
|
A frequent beginner's error is to leave away necessary white space,
resulting in an error like `Undefined word'; so if you see such an
error, check if you have put spaces wherever necessary.
| | ." hello, world" \ correct
."hello, world" \ gives an "Undefined word" error
|
Gforth and most other Forth systems ignore differences in case (they are
case-insensitive), i.e., `word' is the same as `Word'. If
your system is case-sensitive, you may have to type all the examples
given here in upper case.
