Scnaf Patch?

[Takao Ueda]

It seems pos is undefined for STDIN.
In order to use scanf for console input I had to change the line
start_position = pos
in class IO, def scanf(str, &b) in lib/ruby/1.8/scanf.rb into
if self == STDIN
start_position = 0
else
start_position = pos
end

Any ideas?

 

[David A. Black]

Hi --

It seems pos is undefined for STDIN.
In order to use scanf for console input I had to change the line
start_position = pos
in class IO, def scanf(str, &b) in lib/ruby/1.8/scanf.rb into
if self == STDIN
start_position = 0
else
start_position = pos
end

Any ideas?

I believe this broke some time after 1.6.8, when pos was removed from
STDIN. It was subsequently fixed, though:

wobblini:~$ ruby -vrscanf -e 'p STDIN.scanf("%d%s")'
ruby 1.8.2 (2004-07-29) [i686-linux]
123 abc
^D
[123, "abc"]

(The line you quoted is now:

start_position = pos rescue 0




David