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"Dynamic" string formatting
f#

Documentation says, that "The formatting string is statically analyzed to fill in Format’s type parameters". What if I need to pass formatting parameter as a parameter along with values list? Something like:

let a = "%d"
let b = 123456

Printf.sprintf a b

Is there a way to do this, or it's just impossible?

/Thanks

.

This thread implies that it is possible, but that one failes in the CTP (1.9.6.2).

However, this thread explains what you want, but the steak is cooked in a french sauce.

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let (a:Text.Format < _, _, _, _ >) = "%d"

let b = 123456

printf a b
By on 4/10/2009 11:17 AM ()

I think it's impossible. (EDIT: I stand corrected, see below.)

This may do exactly what you need, though:

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let pa = sprintf "%d"
let b = 12345

let s = pa b
By on 4/10/2009 10:43 AM ()

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