Prolog - extracting a leading floating point number out of a string

You are viewing an archived Text-only version of the thread. To view this thread in it's original format and/or if you want to reply to this thread please [click here]

Author

extracting a leading floating point number out of a string

news.uni-bamberg.de

2004-12-17, 3:56 am

Hello,

is there s simple way to get the leading floating point number out of a
string with trailing characters like "123.32cm"?
Many thanks

Cornelius

Bart Demoen

2004-12-17, 8:56 am

news.uni-bamberg.de wrote:
> Hello,
>
> is there s simple way to get the leading floating point number out of a
> string with trailing characters like "123.32cm"?
> Many thanks
>
> Cornelius
>
>

The following might not solve your problem in general, but how about starting from:

| ?- append(F,[0'.|_],"123.32cm"), name(I,F).
F = [49,50,51],
I = 123 ?

Cheers

Bart Demoen

Sponsored Links