From: Michael Fellinger <m.fellinger@...>
Date: 2006-11-16T08:39:43+09:00
Subject: Re: Fully justified/center justified output

On 11/16/06, Ben Thomas <user@example.com> wrote:
> 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!

read the documentation of Array... especially #join

> Thanks,
> Ben.