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From:
Lucky Khoza <mrkh... @gmail.com> Date: Mon, 12 Nov 2012 09:54:25 +0200
Local: Mon, Nov 12 2012 2:54 am
Subject: [erlang-questions] CSV file help
Hi Erlang Developers,
Where do i start in terms of reading CSV file, because i tried to use this
{ok,String} = file:open("produce.csv",read).
but when i used this rountine: io:get_line(String,' ') to read each line i
And the file i'm trying to read is like this:
"Supplier ID","Product Code","Product Description","Delivery Date","Unit
Thanks in advance for your help.
Kindest Regards
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From:
Bengt Kleberg <bengt.kleb... @ericsson.com> Date: Mon, 12 Nov 2012 09:04:52 +0100
Local: Mon, Nov 12 2012 3:04 am
Subject: Re: [erlang-questions] CSV file help
Greetings,
The documentation page for io:file/2 says that the second argument
bengt
On Mon, 2012-11-12 at 09:54 +0200, Lucky Khoza wrote:
> Hi Erlang Developers,
> Where do i start in terms of reading CSV file, because i tried to use
> {ok,String} = file:open("produce.csv",read).
> but when i used this rountine: io:get_line(String,' ') to read each
> And the file i'm trying to read is like this:
> "Supplier ID","Product Code","Product Description","Delivery
> Thanks in advance for your help.
> Kindest Regards
> _______________________________________________
... @erlang.org
http://erlang.org/mailman/listinfo/erlang-questions
... @erlang.org
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From:
Michael Uvarov <free... @gmail.com> Date: Mon, 12 Nov 2012 15:20:16 +0300
Local: Mon, Nov 12 2012 7:20 am
Subject: Re: [erlang-questions] CSV file help
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From:
Jesper Louis Andersen <jesper.louis.ander... @erlang-solutions.com> Date: Mon, 12 Nov 2012 13:30:40 +0100
Local: Mon, Nov 12 2012 7:30 am
Subject: Re: [erlang-questions] CSV file help
On Nov 12, 2012, at 8:54 AM, Lucky Khoza <mrkh... @gmail.com> wrote:
> Hi Erlang Developers,
> Where do i start in terms of reading CSV file, because i tried to use this rountines:
> {ok,String} = file:open("produce.csv",read).
first, file:open/2 should be called appropriately and Bengt writes. Second, the binding {ok, String} should rather be {ok, IoDevice} in order to be more precise. The IO device needs to be used to read out data from the file in question. Look at the call file:read_line/2.
The io:get_line/2 call is probably ok, but I would prefer file:read_line/2 since it does not have to be given a prompt. Speaking of prompt, the value '' is not a string but an (empty) atom. In Erlang, you can't interchange ' and " like many other languages (almost) allows you to.
The {error, terminated} is probably because your IoDevice was not opened correctly and thus the call fails.
Jesper Louis Andersen
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