On Wed, Mar 23, 2016, at 19:55, Steven D'Aprano wrote:
> while psource:
> c, psource = psource[0], psource[1:]
> lxsymbol = disptable[min(ord(c), 256)](c, psource)
>
>
> But one positive: this conclusively proves that "Pythonic" is in the eye
> of
> the beholder. Dennis thinks that c, psource = psource[0], psource[1:] is
> reasonable Python code; you think it's not ("I'm not sure why [Bart]
> thinks
> this is pythonic").
I guess the question is, what do you _actually_ need the tail string
for? If you're using it in a loop, to pop further characters from (the
scenario that would cause it to be copying the string over lots of
times), wouldn't it make more sense to use a StringIO (or, in the real
world where your C source code isn't a string, a file) and let that
class take care of handing out characters when you ask for them?
Like...
fsource = StringIO(psource)
while True:
c = fsource.read(1)
lxsymbol = disptable[min(ord(c), 256)](c, fsource)
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