[Newbies] Collection in Smalltalk

[Alex Chi]

Thanks. I'll try to start with the indexing table for each character first. 
Anyway do you know how to split string based on more than 1 character, for example I want to split string based on some punctuation. I have tried using tokenBasedOn, but still can not figured out how to use it for more than 1 separator. 



----- Original Message ----
From: Cédrick Béler <cdrick65 at gmail.com>
To: A friendly place to get answers to even the most basic questions about Squeak. <beginners at lists.squeakfoundation.org>
Sent: Wednesday, September 24, 2008 40:44 PM
Subject: Re: [Newbies] Collection in Smalltalk

Hi,

As a start you can do:

alphabet := $a to: $z.
coll indexOf: $c    returns 4

to have both upper and lower case:
alphabet indexOf: yourCaracter asLowercase

then you iterate on your string collection and add each result...

not sure about the $ word, but it could be once you detect the sum to be 100...

hth :)

Cédrick


but maybe you could reverse the collection so as to have ($a -> 1  ...
$z -> 26)

2008/9/24 Alex Chi <alex_chi99 at yahoo.com>:
> Hi guys,
>
> I am just beginner in Smaltalk and I have some problem with collection in
> smalltalk.
> For this problem I have to define the value of an alphabetic character based
> on its location in the alphabet. So 'a' and  'A' each have value 1, 'b' and
> 'B' each have 2, etc.. Non-alphabetic characters can be considered to have
> value 0.
> The value of a word is the sum of the value of all its characters. So
> 'Smalltalk' has value 101 and 'abc' has value 6.
> A dollar word is a word whose value is 100.  I want to add a method to the
> String class that returns all the dollar words in the string.
>
> So for example if the input is 'SmallTalk' the result is ('SmallTlk'
> 'SmllTlk').
>
> Please kindly help me guys. Really appreciate your help.
>
> Thanks.
>
>
> _______________________________________________
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> Beginners at lists.squeakfoundation.org
> http://lists.squeakfoundation..org/mailman/listinfo/beginners
>
>



-- 
Cédrick



      
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