Re: [Help-smalltalk] GNU smalltalk command line interpreter

[Paolo Bonzini]

> st> 'Hello, world' printNl
> st>                   
>
> But as one sees from that copy there happens absolutely nothing! That is
> also true for "123456 printString",  "6 + 7"  and other trial inputs. If
> this is not a line interpreter I argue that it is only possible to start
> files with a "shebang" or “sharp-bang”?
>
> Where is may error?

The tutorial only works for GNU Smalltalk 3.0.x; the usability of the 
command-line interpreter improved a lot in 3.0 in different ways:

1) each statement is evaluated separately and variables persist until 
you type a bang (exclamation mark).  In 2.x each bang-separated chunk 
would be a single evaluation unit.  If you want more statements to act 
as single evaluation units in 3.x, wrap them with "Eval [ ... ]"

2) periods are implied at the end of a line if the grammar allows that

3) temporary declarations are optional.

4) the output is actually printed using #printOn: and not by some crappy 
C code. :-)

Examples:

  #(1 2 3)!
  2.x => Array new: 3
  3.x => (1 2 3)

  a := 10 factorial
  b := a negated
  2.x => error (variables not declared, missing period before "b", etc.)
  3.x => 3628800 -3628800

I suggest that you download 3.0.1 and install it, or that you wait 10 
days since on March 8th you could get the first release with support for 
Seaside. :-P

Paolo