From: "David A. Black" <dblack@...>
Date: 2004-09-07T06:03:19+09:00
Subject: Re: include? only true once

Hi --

On Tue, 7 Sep 2004, Matthew Margolis wrote:

> David A. Black wrote:
> 
> >Hi --
> >
> >On Tue, 7 Sep 2004, Matthew Margolis wrote:
> >
> >  
> >
> >>blockFile = File.new("blocklist.txt", "a+")
> >>print blockFile.read.include?("aa")
> >>print blockFile.read.include?("aa")
> >>
> >>blocklist.txt looks like
> >>--------------------------------------------
> >>aa
> >>ae
> >>aj
> >>au
> >>ae
> >>---------------------------------------------
> >>
> >>
> >>Why does #include? return true on the first call only? 
> >>    
> >>
> >
> >Because you've reached end-of-file :-)
> >
> >
> >David
> >
> >  
> >
> blockFile = File.new("blocklist.txt", "a+")
>  print blockFile.read.include?("aa")
>  blockFile.lineno = 0
>  print blockFile.read.include?("aa")
> 
> Still gives true false instead of true true

I'm ignorant of #lineno= but it doesn't seem to affect EOF.  (If you
add an EOF test it will come out true.)  But you could use #pos to get
back to the beginning of the stream.


David

-- 
David A. Black
dblack@wobblini.net