From: D T <tran55555@...>
Date: 2003-06-23T07:20:13+09:00
Subject: Range (String) Question

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Content-Type: text/plain; charset=us-ascii

Hi All,
 
I am newbie on Ruby. I got a (newbie's) question on my study:
 
('a'..'zz').to_a
we got ['a', ...... 'z', 'aa' ..... etc till ... 'zz' ]
 
It seems the sequence is like 'a', 'b', ....'z', 'aa', .... 'zz'
 
Now if I want an Range object contents like:
'a', 'b', ....'z', 'aa'
If I write like:
('a'..'aa').to_a  # Ooops, I got only ['a']
that is because: 'a'.next == 'b' which > 'aa'
 
This is a little bit strange for me, in one side, we saw the real sequence
('a' to 'zz'), but if we try take a sub sequence ('a' ..'aa') from it, it fail...
 
Is this normal?  (BTW: sub sequence of an integer interval do not have this problem)
If my understanding is correct, that is because 'a'.next > 'aa';
how can you construct an Range ('a', 'b', ...'z', 'aa') in the simplest way?
 
Thanks.
 


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--0-2137051609-1056320410=:61969
Content-Type: text/html; charset=us-ascii

<DIV>Hi All,</DIV>
<DIV>&nbsp;</DIV>
<DIV>I am newbie on Ruby. I got a (newbie's) question on my study:</DIV>
<DIV>&nbsp;</DIV>
<DIV>('a'..'zz').to_a</DIV>
<DIV>we got ['a', ...... 'z', 'aa' ..... etc till ... 'zz'&nbsp;]</DIV>
<DIV>&nbsp;</DIV>
<DIV>It seems the sequence is like 'a', 'b', ....'z', 'aa', .... 'zz'</DIV>
<DIV>&nbsp;</DIV>
<DIV>Now if I want an Range object contents like:</DIV>
<DIV>'a', 'b', ....'z', 'aa'</DIV>
<DIV>If I write like:</DIV>
<DIV>('a'..'aa').to_a&nbsp; # Ooops, I got only ['a']</DIV>
<DIV>that is because: 'a'.next == 'b' which &gt; 'aa'</DIV>
<DIV>&nbsp;</DIV>
<DIV>This is a little bit strange for me, in one side, we saw the real sequence</DIV>
<DIV>('a' to 'zz'), but if we try take a sub sequence ('a' ..'aa') from it, it fail...</DIV>
<DIV>&nbsp;</DIV>
<DIV>Is this normal?&nbsp; (BTW: sub sequence of an integer&nbsp;interval do not have this problem)</DIV>
<DIV>If my understanding is correct, that is because 'a'.next &gt; 'aa';</DIV>
<DIV>how can you construct an Range ('a', 'b', ...'z', 'aa') in the simplest way?</DIV>
<DIV>&nbsp;</DIV>
<DIV>Thanks.</DIV>
<DIV>&nbsp;</DIV><p><hr SIZE=1>
Do you Yahoo!?<br>
<a href="http://pa.yahoo.com/*http://rd.yahoo.com/evt=1207/*http://promo.yahoo.com/sbc/">SBC Yahoo! DSL</a> - Now only $29.95 per month!
--0-2137051609-1056320410=:61969--