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Date: Wed, 06 Nov 2013 13:08:57 +0000
From: Matej Kosik <5764c029b688c1c0d24a2e97cd764f@gmail.com>
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To: Jeremy Yallop <yallop@gmail.com>
CC: OCaml <caml-list@inria.fr>
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Subject: Re: [Caml-list] is there a way for turning strings to "format"s?

Guys,

Thanks for all the answers.

On 06/11/13 12:57, Jeremy Yallop wrote:
> On 6 November 2013 12:39, Matej Kosik
> <5764c029b688c1c0d24a2e97cd764f@gmail.com> wrote:
>> I would like to ask, how to do something like:
>>
>>         let computed_format = Printf.sprintf "%%0%dd" 5 in
>>         Printf.printf computed_format 42
> 
> For this example, you can use '*' in the format string to pass the
> width as an argument
> 
>          let computed_format = Printf.sprintf "%0*d" 5 in
>          computed_format 42
> 
> or even just
> 
>          Printf.sprintf "%0*d" 5 42
> 

This is great! \o/