From: John Joyce <dangerwillrobinsondanger@...>
Date: 2007-03-09T20:14:29+09:00
Subject: Re: rjust alignment

Maybe you're looking at the numbers wrong.
You could roll your own pretty easily.
Some pseudo code:

TotalWidth = x
TotalWidthForLine = TotalWidth - ( ChapterTitleWidth + PageNumberWidth )


On Mar 9, 2007, at 2:45 PM, Ross wrote:

> I think I'm going crazy.  I tried to write a fairly simple program to
> test ljust, center and rjust.  But I cannot make the page numbers  
> of my
> table of contents line up.  I tried to account for the string  
> length of
> the chapter and topics; I've tried a lot of things and I just  
> cannot get
> the page numbers to line up.  If anyone knows how to do it please  
> let me
> know.  I don't think I'll be able to go to bed without figuring it  
> out.
> Here is my latest code and output:
>
> ////////// code //////////////
>
> class TableOfContents
> attr_accessor :chapters, :topics, :pages
> end
>
> toc = TableOfContents.new
> toc.chapters = ["Chapter 1", "Chapter 2", "Chapter 3"]
> toc.topics = ["Numbers", "Letters", "Variables"]
> toc.pages = ["Page 1", "Page 57", "Page 117"]
>
> lineWidth = 20
> 3.times do |x|
> offset = toc.chapters[x] + ": " + toc.topics[x]
> offset = 40 - offset.length
> puts toc.chapters[x] + ": " + toc.topics[x] +
> toc.pages[x].rjust(lineWidth + offset + (10 - toc.pages[x].length))
> end
>
> //////////// output /////////////////
>
> Chapter 1: Numbers                                        Page 1
> Chapter 2: Letters                                      Page 57
> Chapter 3: Variables                                  Page 117
>
> !! Using this line rather than the above line 14 gives this
>
> new line 14:
>
> puts toc.chapters[x] + ": " + toc.topics[x] +
> toc.pages[x].rjust(lineWidth)
>
> new output:
>
> Chapter 1: Numbers              Page 1
> Chapter 2: Letters             Page 57
> Chapter 3: Variables            Page 117
>
> Thanks
>
> -- 
> Posted via http://www.ruby-forum.com/.
>