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printf and positional specifier
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Date: -- (:)
From: Martin Jambon <martin1977@l...>
Subject: Re: [Caml-list] printf and positional specifier
On Sat, 11 Nov 2006, Peter Gregory wrote:

> Anastasia Gornostaeva wrote:
>> Hello.
>> 
>> $ ocaml
>>         Objective Caml version 3.09.3
>> 
>> # open Printf;;
>> # printf "%2$d %1$s" "abc" 2;;
>> Bad conversion %$, at char number 0 in format string ``%2$d %1$s''
>> 
>> 
>> How?
>> 
>> ermine
>> 
>
> Hi Ermine,
>
> I'm not sure that I understand your question.  I think to achieve what you 
> seem to be trying, you would simply write:
>
> # printf "%d %s" 2 "abc";;
>
> You just put the parameters in the order they came in the string.  Does that 
> help, it seems like perhaps you needed more than that.

The dollar stuff is real, although I have no idea of how to make it work. 
It's the last paragraph in the description of Printf.fprintf:
   http://caml.inria.fr/pub/docs/manual-ocaml/libref/Printf.html


Martin

--
Martin Jambon, PhD
http://martin.jambon.free.fr