I want to do something analogous to this C code.
c = getchar()
if (isdigit(c)) {
ungetc(c, stdin);
scanf("%d", &num);
}
In fmt package, fmt.Scanf("%d", &num) exists but ungetc doesn't exist. For
bufio package, Peek function exists which is great but there is no ReadInt.
Is there an elegant solution that i can use for this situation? Otherwise i
will read byte by byte as long as i have a digit and convert it to integer
once i'm done.
The input i am trying to tokenize is something like,
(32 + 5) * 2 - 5 / (41 - 7)
Thanks.
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