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From: "Kontra, Gergely" <kgergely@mlabdial.hit.bme.hu>
To: Maxence Guesdon <maxence.guesdon@inria.fr>
Cc: Florian Hars <florian@hars.de>, caml-list@inria.fr
Subject: Re: [Caml-list] (Sorry for my last post) lazyness, exceptions?, ocaml syntax rule-of-thumbs
Date: Fri, 27 Sep 2002 19:06:28 +0200 (CEST)	[thread overview]
Message-ID: <Pine.LNX.4.21.0209271855440.319-100000@mlabdial.hit.bme.hu> (raw)
In-Reply-To: <20020927170755.142d6390.maxence.guesdon@inria.fr>

>>   > One point was ocaml is really obscure is the file reading: it needed to
>>   > wrap the line-reading in an infinite loop, and this loop is ended via an
>>   > exception. I think End_of_file is not an exception, it is just an event.
>
>What next ? int_of_string "foo" returning None ?
No, that wouldn't be a good idea.
But writing int_of_string "foo" is a bad thing, while the end-of-file
thing is not a design problem. Is there a function to test eof? (without
consuming a line?)

>If you want to read a whole file as a string, you can use the
>following function:
[snip]
Well, but what about memory usage?
I just miss an iterator, or sg. like that, which reads a line, processes
it, reads next line...
Just want to write cleaner, which eg. in ruby is just (so intuitive)

IO.foreach("filename.ext") {|line|
	# process line
}

and don't like infinite loops.

Gergo

+-[Kontra, Gergely @ Budapest University of Technology and Economics]-+
|         Email: kgergely@mcl.hu,  kgergely@turul.eet.bme.hu          |
|  URL:   turul.eet.bme.hu/~kgergely    Mobile: (+36 20) 356 9656     |
+-------"Olyan langesz vagyok, hogy poroltoval kellene jarnom!"-------+
.
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  reply	other threads:[~2002-09-27 17:06 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-09-26 15:50 Kontra, Gergely
2002-09-27  8:01 ` Maxence Guesdon
2002-09-27  8:14   ` Xavier Leroy
2002-09-27 10:29     ` Kontra, Gergely
2002-09-27 14:50 ` Florian Hars
2002-09-27 15:07   ` Maxence Guesdon
2002-09-27 17:06     ` Kontra, Gergely [this message]
2002-09-27 18:22       ` Tim Freeman
2002-09-27 22:27     ` malc
2002-09-28  9:30   ` [Caml-list] stdlib req - iter and fold on channels Stefano Zacchiroli
     [not found] <Pine.LNX.4.44.0209300427310.1961-100000@home.oyster.ru>
2002-09-30  1:19 ` [Caml-list] (Sorry for my last post) lazyness, exceptions?, ocaml syntax rule-of-thumbs Alessandro Baretta

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