From: Mike Fletcher <lemurific+rforum@...>
Date: 2006-06-20T21:37:26+09:00
Subject: Re: bug in $. ?

Wybo Dekker wrote:
> wybo>cat t
> def out; print "#$. "; end # print $. plus a space
> out
> $. = 0
> out
> DATA.each { out }
> puts
> __END__
> 1
> 2
> 3
> 4
> wybo>ruby t
> 7 0 8 9 10 11
> 
> This should, probably even without the $.=0 statement, print:
> 7 0 1 2 3 4
> 
> Am I wrong?

What looks like is happening (with no opinion as to it's correctness):

* DATA.lineno is 7 (6 lines of code + the __END__ line), so the initial 
value's reasonable

* when you assign to $. it's affecting $<.lineno (which makes sense)

* however when you do "$. = 0", $< is the handle ARGF, not DATA

* after the code was read, $< got changed to the ARGF handle but $. 
wasn't reset

* you then start reading from DATA, so $. gets associated with it again 
and $. is back to 7


-- 
Posted via http://www.ruby-forum.com/.