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Today's Topics:
1. Re: Simple function gives UTF-8 decoding error. (Vilpesh Mistry)
2. searching for an element from a list of tuples (Anvika Kumar)
3. Re: searching for an element from a list of tuples
(Sumit Sahrawat, Maths & Computing, IIT (BHU))
4. Re: searching for an element from a list of tuples (Anvika Kumar)
----------------------------------------------------------------------
Message: 1
Date: Sun, 8 May 2016 23:34:11 +0530
From: Vilpesh Mistry <[email protected]>
To: The Haskell-Beginners Mailing List - Discussion of primarily
beginner-level topics related to Haskell <[email protected]>
Subject: Re: [Haskell-beginners] Simple function gives UTF-8 decoding
error.
Message-ID:
<CAH5zO6RSf25hqO3eGBPSaX8bG3YVrcx7Ge77zO=duajlc-q...@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
Yes, ? in ?lem was the problem, thanks for pointing that out.
Vilpesh
On Sun, May 8, 2016 at 9:04 PM, Imants Cekusins <[email protected]> wrote:
> ? in ?lem?
> ?
>
> _______________________________________________
> Beginners mailing list
> [email protected]
> http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners
>
>
--
thanks
Vilpesh
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Message: 2
Date: Mon, 9 May 2016 13:11:01 +0900
From: Anvika Kumar <[email protected]>
To: [email protected]
Subject: [Haskell-beginners] searching for an element from a list of
tuples
Message-ID:
<CAAtXpCeFCtX_=CW1=kx4D6B9cuOnff-2h=-1OT0TeRuagkx=t...@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
I have a tuple with three values and i want to remove the tuple which
contains a particular name.
So d = (name, month, date)
i take a user input of name and then search the list which has tuples of
the above declared type. Which ever tuple has the name it should be deleted
from the list.
d is the tuple.
db should be a list of tuples.
remove :: (Eq) => IO String -> d
print "Enter the name to be removed?
a <- getLine
remove x [] = []
print ?Record not found?
remove x db =
if x ==
Please let me know!
Thanks a lot
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Message: 3
Date: Mon, 9 May 2016 14:55:18 +0530
From: "Sumit Sahrawat, Maths & Computing, IIT (BHU)"
<[email protected]>
To: The Haskell-Beginners Mailing List - Discussion of primarily
beginner-level topics related to Haskell <[email protected]>
Subject: Re: [Haskell-beginners] searching for an element from a list
of tuples
Message-ID:
<cajbew8nhwbcmextak44ippukbimetim2puciuiz5hj+kthq...@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
Try pattern matching on the list head and tail as in (x:xs). Take a look at
the source code for filter [1], which can be put to use here.
[1]:
http://hackage.haskell.org/package/base-4.8.2.0/docs/src/GHC.List.html#filter
Regards,
Sumit
On 09-May-2016 9:41 am, "Anvika Kumar" <[email protected]> wrote:
> I have a tuple with three values and i want to remove the tuple which
> contains a particular name.
>
> So d = (name, month, date)
> i take a user input of name and then search the list which has tuples of
> the above declared type. Which ever tuple has the name it should be deleted
> from the list.
>
> d is the tuple.
> db should be a list of tuples.
>
>
> remove :: (Eq) => IO String -> d
> print "Enter the name to be removed?
> a <- getLine
> remove x [] = []
> print ?Record not found?
> remove x db =
> if x ==
>
>
>
> Please let me know!
>
> Thanks a lot
>
>
> _______________________________________________
> Beginners mailing list
> [email protected]
> http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners
>
>
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Message: 4
Date: Mon, 9 May 2016 21:02:49 +0900
From: Anvika Kumar <[email protected]>
To: [email protected], The Haskell-Beginners Mailing
List - Discussion of primarily beginner-level topics related to
Haskell <[email protected]>
Subject: Re: [Haskell-beginners] searching for an element from a list
of tuples
Message-ID:
<CAAtXpCdz9WFH1YpmufRt=d+q4-lqurbm970+yv3n+zjuyg7...@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
Let me review and get back. Thank you.
Anvika
Graduate Student
STONY BROOK UNIVERSITY
On Mon, May 9, 2016 at 6:25 PM, Sumit Sahrawat, Maths & Computing, IIT
(BHU) <[email protected]> wrote:
> Try pattern matching on the list head and tail as in (x:xs). Take a look
> at the source code for filter [1], which can be put to use here.
>
> [1]:
> http://hackage.haskell.org/package/base-4.8.2.0/docs/src/GHC.List.html#filter
>
> Regards,
> Sumit
> On 09-May-2016 9:41 am, "Anvika Kumar" <[email protected]> wrote:
>
>> I have a tuple with three values and i want to remove the tuple which
>> contains a particular name.
>>
>> So d = (name, month, date)
>> i take a user input of name and then search the list which has tuples of
>> the above declared type. Which ever tuple has the name it should be deleted
>> from the list.
>>
>> d is the tuple.
>> db should be a list of tuples.
>>
>>
>> remove :: (Eq) => IO String -> d
>> print "Enter the name to be removed?
>> a <- getLine
>> remove x [] = []
>> print ?Record not found?
>> remove x db =
>> if x ==
>>
>>
>>
>> Please let me know!
>>
>> Thanks a lot
>>
>>
>> _______________________________________________
>> Beginners mailing list
>> [email protected]
>> http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners
>>
>>
> _______________________________________________
> Beginners mailing list
> [email protected]
> http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners
>
>
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