On 18.07.2010 00:41, Michael Koehmstedt wrote:
I'm having trouble figuring out how to do formatted console input, something
like C scanf() or C++ templated stream input. Unfortunately, console input
isn't covered in much detail in TDPL book. There doesn't appear to be much
discussion about the standard library at all, which was a bit disappointing.
But anyway, what different ways are there to properly do input from the
console? Fetching a string with readln() is easy enough, but how could I
fetch, say, an integer value? Conversely, what is the preferred method for
converting string into integer or floating point values?
The standard library (Phobos) is getting overhauled, which is probably
why there's not a lot of detail about it in the book. It's still quite
limited and buggy. Up until now, most real D work has probably been
done using D1 and the Tango library.
There's a scanf implementation in the works, but it's not released yet.
You can probably get by with the to() and parse() functions in
std.conv. C's isdigit() will probably come in handy too, it's defined in
core.stdc.ctype.
