From: Ben Thomas <user@...>
Date: 2006-11-16T08:30:05+09:00
Subject: Re: Fully justified/center justified output

Juozas Gaigalas wrote:
> Philip Hallstrom wrote:
>>> Hi, how do I go about fully justifying/center justifying output text 
>>> in ruby?
>>>
>>> I'm guessing I have to use sprintf but I can't seem to get it working 
>>> properly, not sure of the correct "%" characters (don't know the 
>>> proper name for them).
>>
>> http://corelib.rubyonrails.org/classes/String.html#M001536
>>
>>   str.center(integer, padstr) => new_str
>>
>> If integer is greater than the length of str, returns a new String of 
>> length integer with str centered and padded with padstr; otherwise, 
>> returns str.
>>
>>    "hello".center(4)         #=> "hello"
>>    "hello".center(20)        #=> "       hello        "
>>    "hello".center(20, '123') #=> "1231231hello12312312"
>>
>>
> If you're printing to terminal, you'll need to know the terminal width 
> before use can use String#center. This is simple in Windows because 
> cmd.exe terminal is fixed-width. In Linux and OSX this is more 
> complicated. The easiest way I know is this:
> 
> require "curses"
> 
> width = Curses::cols
> "hello".center(width)
> 
> It's not totally clear from your post if this is what you're trying to 
> do, but if it is I hope this works you.
> 
> 

Yeah I think that's what I want from what I can see.

Can't get it to work for what I want though because the data is in an 
array. Tried converting it to a string but can't work that out either. 
Not been doing ruby long as you might have guessed!

Thanks,
Ben.