[erlang-questions] Print Date

Thomas Lindgren <>
Fri Nov 16 13:47:37 CET 2012



Here's my honest advice to the guy who has been sending us his homework: For these kinds of problems, ask your tutor. 

And as a bonus, here's something that may help homework guy out, hopefully before he will be inflicted on the world as a contractor: http://catb.org/~esr/faqs/smart-questions.html

Best,

Thomas


----- Original Message -----
> From: Henrik Nord <>
> To: Richard O'Keefe <>
> Cc: "" <>
> Sent: Thursday, November 15, 2012 3:06 PM
> Subject: Re: [erlang-questions] Print Date
> 
> Hi
> 
> Why not encourage users of Erlang, and just help them out, or ignore 
> those questions that you deem to "easy" to be allowed to be asked on 
> the 
> mailing list.
> 
> There is really no reason to shout at a potential Erlang user of the 
> year, just because he/she is just starting out with the language and 
> does not know the ropes yet. Maybe its her first language? first time 
> trying to program anything?, do you want to be responsible for scaring 
> users away from the community?
> 
> BE NICE ON THE MAILING LIST PLEASE
> 
> 
> To Lucky:
> www.erlang.org contains a lot of information including, but not limited 
> to, the documentation.
> http://www.erlang.org/erldoc
> 
> There is also http://learnyousomeerlang.com/ for a guide and a first 
> look at the language.
> 
> Erlang solutions also provides courses both E-lerning and classroom
> 
> https://www.erlang-solutions.com/services/training
> 
> 
> 
> On 2012-11-14 23:25, Richard O'Keefe wrote:
>>  On 15/11/2012, at 5:06 AM, Lucky wrote:
>> 
>>>  Hi Erlang Developers'
>>> 
>>>  I'm stuck here, I am trying to print date which is in this format 
> "2012/04/23" using io:format/2, but I want it to be printed like this: 
> 2012/04/23 without invited commas, how do I go about resolving this?
>>  READ THE MANUAL!
>> 
>>  Specifically http://www.erlang.org/doc/man/io.html#format-2
>> 
>>  Ask yourself, "how did those quotation marks get there?  What did I to 
> that
>>  made io:format/2 think I was ASKING for them?"
>> 
>>  It looks to me as though you used ~p when you meant ~s,
>>  and in particular it looks to me as though you very likely
>>  just want to do
>>      io:put_chars(IoDevice, "2012/04/23")
>>  and not involve io:format/2 at all.  (Like in C you'd use fputs() 
> rather
>>  than fprintf().)
>> 
>>  1> io:format(standard_io, "~p~n", ["2012/04/23"]).
>>  "2012/04/23"
>>  ok
>>  2> io:format(standard_io, "~s~n", ["2012/04/23"]).
>>  2012/04/23
>>  ok
>>  3> io:put_chars(standard_io, "2012/04/23"), 
> io:nl(standard_io).
>>  2012/04/23
>>  ok
>> 
>>  Before posting one more question, PLEASE try reading the manual.
>> 
>>  _______________________________________________
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>>  
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