Version française
Home     About     Download     Resources     Contact us    

This site is updated infrequently. For up-to-date information, please visit the new OCaml website at

Browse thread
[Caml-list] Printf question
[ Home ] [ Index: by date | by threads ]
[ Search: ]

[ Message by date: previous | next ] [ Message in thread: previous | next ] [ Thread: previous | next ]
Date: 2003-09-26 (19:05)
From: Alain.Frisch@e...
Subject: Re: [Caml-list] Printf question
On Fri, 26 Sep 2003, Richard Jones wrote:

> I want to write a function which is a bit like Printf.printf, but
> handles the %s placeholder differently. It needs to do SQL-style
> escaping, eg:
> 	my_printf "The string: %s" "string with 'quotes'"

If you're ready to write

  <:my_printf<The string: %s> "string with 'quotes'"

instead, you can write your own quotation expander with Camlp4 and
implement the behavior you want.  Mmmh, a re-implementation of the
Printf and Format modules with this technique would be nice.
And also for Scanf (with a pattern quotation expander?).

Yes, the typing of the printf functions are magic, and their
implementation also. You cannot adapt their behavior without hacking the
compiler and using the Obj module.

-- Alain

To unsubscribe, mail Archives:
Bug reports: FAQ:
Beginner's list: