Am 17.08.2010 19:10, schrieb Jesse Phillips:
Ali �ehreli Wrote:
A novice should be able to read as simple as
auto d = read!double();
auto i = read!int();
Ignoring stripping whitespace, read can be implemented like this:
T read(T)()
{
T value;
readf("%s",&value);
return value;
}
Ali
I created a similar function for my own use. I used a question answer style:
auto age = userInput!int("Please Enter you age");
It is meant only to work with stdin and allows for some very nice extension
functionality. For example Yes/No questions are possible:
if(userInput!bool("Do you want to continue?")) { ... }
I then added some other functions:
auto outputFolder = pathLocation("Where you do want to place the output?");
auto color = menu!string("What color would you like to use?", ["Blue",
"Green"]);
Using pathLocation will verify that the folder/file exists before returning
(maybe creating the path could be an option). And menu will display the array
with numbers for selection; the input accepted is a integer or string and will
return an integer or string depending on the request (default int).
If any of these seem common enough I'd be willing to clean them up and try to
make them Range friendly.
I also have a function that takes a bool delegate which will continually ask
for input and validates the answer against the delegate before returning.
That sounds really cool. Having things like this in the std lib would
allow you to write great consistent utilities with simple and short
code. If such functions will ever get into phobos (what I really hope),
they should get their own module. What do you thinke about
'std.interact'? Anyways, sounds great!
Mafi
