Re: Syntax, expressiveness and the beauty of Tcl

Stephan Kuhagen wrote:
slebetman@xxxxxxxxx wrote:
I will have a closer look into that, looks cool to me. Does your example
imply that the variable must exist before it can be used that way? This
would be very C-like, more that I expected... ;-)

No. 'Normal' variables don't inherit that behavior (for that you can
use the [unknown] trick). Instead the [var] command is used to create
C-like variables:

var x = 10
var y

x = $x * 2
y = $x * $x
x = $y
y = 0

puts $x
puts $y

Notice that since x and y are proper procs, they can also be used like
this:

y = [x]
x = [x] + [y]

but I think $x looks nicer than [x]. Besides, for me, in my code, [x]
signifies a constant (I use procs to define global constants).

.

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