From: voipfc@...
Date: 2006-10-12T03:55:11+09:00
Subject: Re: Ruby's equivalent of PHP explode


I wrote my first ruby program and displayed it here -
http://groups.google.co.uk/group/comp.lang.ruby/browse_frm/thread/d9a5608bdfb5ebbd/dfe7da9069b5bf40?lnk=st&q=voipfc&rnum=1&hl=en#dfe7da9069b5bf40

When I apply some text  to it I receive this error message

=======
templatefiller.rb:33:in `fetch': key not found (IndexError)
        from templatefiller.rb:33:in `run'
        from templatefiller.rb:32:in `run'
        from templatefiller.rb:31:in `run'
        from templatefiller.rb:126
        from c:/webdirectory/ruby/lib/ruby/1.8/find.rb:39:in `find'
        from c:/webdirectory/ruby/lib/ruby/1.8/find.rb:38:in `find'
        from templatefiller.rb:110
        from templatefiller.rb:109

Could anyone explain what is happening?

Mike Dvorkin wrote:
> Actually the split method has second parameter where you can specify
> number of splits you want, i.e.:
>
> data.each do |line|
>     key, value = line.split(/=/, 2)
> end
>
> HTH.
> Mike Dvorkin
> http://www.rubywizards.com
>
>
> On Sep 26, 2006, at 1:35 PM, voipfc@googlemail.com wrote:
>
> >
> > Paul Lutus wrote:
> >> voipfc@googlemail.com wrote:
> >>
> >>>
> >>> What is ruby's equivalent of PHPs explode?
> >>>
> >>> A routine which can breakdown a string and return the results in an
> >>> array or a routine that  can parse an .ini file and return the key
> >>> value pairs in an array[key]=value.
> >>
> >> Actually, that is two questions. As to the first (explode a string
> >> on word
> >> boundaries), you've been given an answer:
> >>
> >> array = string.split("\s") # many variations
> >>
> >> As to the second, read an .ini file and break it down by line and by
> >> name/value pairs (not tested):
> >>
> >> data = File.read("filename.ini")
> >>
> >> my_hash = {}
> >>
> >> data.each do |line|
> >>   key,value = line.split("=")
> >>   my_hash[key] = value
> >> end
> >>
> >> The second won't work properly if there are any equals signs in
> >> the value
> >> field. The solution for this is only a bit more complex.
> >>
> >
> > Will this fix the multiple = sign problem
> >
> >  data.each do |line|
> >   my_hash[line.slice[0, line.index("=") - 1] =
> > line.slice[line.index("="), line.length    -line.index("=")]
> >  end
> >
> > I am new to Ruby and rightly or wrongly it looks rather unRuby like,
> > can it be expressed more elegantly?
> >
> >
> >> -- 
> >> Paul Lutus
> >> http://www.arachnoid.com
> >
> >