Qu

For other uses, see (disambiguation)}}}.

Qu is a computer programming language, comparable to Python, Ruby, Perl and many others - but much faster and with simpler syntax. An information page is available at http://centrin.net.id/~marc/

The language is semi-dynamic, and optionally strongly typed, with full object orientation. All variables in the language are first class objects.

The design and implementation focuses on compactness and speed, using the [GNU Lightning] Just In Time compiler (JIT).

Examples

# Ackermann

if not () # get input;
println("Ackermann's function ...")
println("Enter a number on the command line!")
else
NUM = Int([0])
printf('Ack (3,%d): %d\n', NUM, Ack(3, NUM))
;;

sub Ack(m, n) # one way
if m == 0 return n + 1
elif n == 0 return Ack(m - 1, 1)
else return Ack(m - 1, Ack(m, n - 1));;
;;

# alternate way

sub ackermann (m, n)
return m ? (n ? ackermann (m - 1, ackermann (m, n - 1)) :
ackermann (m - 1, 1)) : n + 1
;;

# A simple GTK+ program

use Gtk (*)

app = application("GTK+ for Qu!") # required
app.author = "Irv Mullins"       # optional
app.date = "May 5, 2005"         # optional

win = window(app.name)
win.set_default_size(400,300)
win.set_icon_from_file("qu.gif") # custom icon in titlebar

qu = image("qu.gif")             # picture for window
win.add(qu)

win.show_all()         # shows self and all child controls.

app.main               # start GTK+ main loop...

External links

Qu is free to download, comes with complete source, documentation, and example programs.

[Qu Home Page]
[GTK module for Qu]

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