From: globalrev <skanemupp@...>
Date: 2008-05-09T06:35:44+09:00
Subject: Re: scramble sentence, how to better program?

On 8 Maj, 22:12, "David A. Black" <dbl...@rubypal.com> wrote:
> Hi --
>
>
>
> On Fri, 9 May 2008, globalrev wrote:
> > i have written a program that takes a sentence as input and outputs
> > the sentence with the words rearranged.
> > it is probably inefficient and can probably be done with less code.
> > it is also nondeterministic(  while (inList(temp,scr))  could go on
> > for a long time if the user is unlucky) and im not sure how to get
> > around that or if it is even possible.
> > also, if there is 2 identical words in the sentence, lets say "the" is
> > in there twice, it will loop forever. i could do
> > .uniq in the beginning but lets say i want both "the" to be in there.
> > i have to write some if duplicate then ok up to nbrofduplicates. is
> > there an easy way to do this?
>
> > #scrambler
> > puts "Enter a sentence: "
> > sentence = gets
> > list = sentence.split()
> > scr = []
>
> > def inList(aword,alist)
> >    inl=false
> >    for i in (0..alist.length()-1)
> >            if alist[i] == aword
> >                    inl=true
> >            end
> >    end
> >    return inl
> > end
>
> Much easier:
>
>    def in_list?(aword, alist)
>      alist.include?(word)
>    end
>
> which means you don't really need your own method; you can just call
> include? on your list.
>
> > for x in (0..list.length()-1)
> >    temp = list[rand(list.length())]
> >    while (inList(temp,scr))
> >            temp = list[rand(list.length())]
> >    end
> >    scr = scr + temp.split()
> > end
>
> Please lose the ()'s. They don't do anything or add any information;
> they're just visual clutter. Meanwhile, see below....
>
> > puts "Scrambled: "
> > puts scr
>
> In general, you're working much too hard :-) Let Ruby do it for you:
>
>    print "Enter a sentence: "
>    puts gets.split.sort_by { rand }.join(" ")
>
> David
>
> --
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rofl aamazing, ty very much :)

had a feeling i was complicating things.


does it work as well for building bigger applications(not just
webapps), like building an editor like emacs. is the language as
suitable for that?
i know executionspeed is the issue with ruby and python but thats not
really an issue and will be even less of one in the future i guess.

must be some tradeoff no?


anyway ty for the help, the rubycommunity seems very nice and helpful!