About to!int

[bearophile]

In Python int() and float() convert a string into a number even if it contains some whitespace before and after the number:


>>> s = " 12\n"
>>> int(s)
12
>>> float(s)
12.0


In D  to!int(" 12\n")  gives a run-time error. So time ago I have weakly asked Andrei to change to!int, to let it ignore leading and trailing whitespace, but he has ignored my request.

A leading newline comes often from input stdin.readln() and other sources. So in D you need to add a strip():

int n = to!int(stdin.readln().strip());

I sometimes forget to add the strip(). Do you know why Andrei has not appreciated the idea of to!int and similar functions to ignore leading and trailing whitespace?

Bye,
bearophile