Stefan Ram wrote:
One might wish to implement a small language with these commands:
Explain why. What is the advantage?
F - move forward
B - move backward
L - larger stepsize
S - smaller stepsize
. One could start with the following pseudocode for a dictionary:
{ 'F': lambda: myturtle.forward( s ),
'B': lambda: myturtle.backward( s ),
'L': lambda: global s; s *= 2,
'S': lambda: global s; s /= 2 }
. But lambda-expressions cannot contain statements.
In real Python one could write something like (untested):
def f():
myturtle.forward( s )
def b():
myturtle.backward( s )
def l():
global siz
size *= 2
def s():
global siz
size /= 2
{ 'F': f,
'B': b,
'L': l,
'S': s }
. Is this more readable or less readable?
Any other suggestions?
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