Need help on ARGF#skip

ruby-talk
1

from the doc: http://www.ruby-doc.org/core-2.0/ARGF.html#method-i-skip

ARGF#skip :- Sets the current file to the next file in ARGV. If there
aren't any more files it has no effect.

Tried the codes as below:

Code - I:

p RUBY_VERSION
p ARGF.argv
ARGF.skip #~~>B
p ARGF.argv #~~> A

Output:

D:\Rubyscript>ruby true.rb a.txt b.txt
"2.0.0"
["a.txt", "b.txt"]
["a.txt", "b.txt"]

Question- Why after the line B, line in A printing all the file names?

Code II:

p RUBY_VERSION
p ARGF.argv
ARGF.skip #~~>A
p ARGF.filename #~~>B
p ARGF.argv

output:

D:\Rubyscript>ruby true.rb a.txt b.txt
"2.0.0"
["a.txt", "b.txt"]
"a.txt"
["b.txt"]

Question- Why after the line A, line in B printing `a.txt` as current
file?

output doesn't match with the official doc,after `skip`.

···

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2

honestly, ARGF is just one of those things I don't get.

···

On Wed, Mar 27, 2013 at 3:28 AM, Pritam Dey <lists@ruby-forum.com> wrote:

from the doc: Class: ARGF (Ruby 2.0.0)

3

I suggest you report a bug.

$ ruby -v
ruby 1.9.3p385 (2013-02-06 revision 39114) [i386-cygwin]
$ ruby -e 'p ARGF.argv; p ARGF.gets; ARGF.skip; p ARGF.argv; p
ARGF.to_a; p ARGF.argv' <(seq 1 5) <(seq 10 15)
["/dev/fd/63", "/dev/fd/62"]
"1\n"
["/dev/fd/62"]
["10\n", "11\n", "12\n", "13\n", "14\n", "15\n"]

Cheers

robert

···

On Wed, Mar 27, 2013 at 9:28 AM, Pritam Dey <lists@ruby-forum.com> wrote:

from the doc: Class: ARGF (Ruby 2.0.0)

ARGF#skip :- Sets the current file to the next file in ARGV. If there
aren't any more files it has no effect.

Tried the codes as below:

Code - I:

p RUBY_VERSION
p ARGF.argv
ARGF.skip #~~>B
p ARGF.argv #~~> A

Output:

D:\Rubyscript>ruby true.rb a.txt b.txt
"2.0.0"
["a.txt", "b.txt"]
["a.txt", "b.txt"]

Question- Why after the line B, line in A printing all the file names?

--
remember.guy do |as, often| as.you_can - without end
http://blog.rubybestpractices.com/

4

Robert Klemme wrote in post #1103343:

···

On Wed, Mar 27, 2013 at 9:28 AM, Pritam Dey <lists@ruby-forum.com> > wrote:

p ARGF.argv

Question- Why after the line B, line in A printing all the file names?

I suggest you report a bug.

I don't know how to do that?

Any help on the same?

Thanks,

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

5

Robert Klemme wrote in post #1103343:

···

On Wed, Mar 27, 2013 at 9:28 AM, Pritam Dey <lists@ruby-forum.com> > wrote:

p ARGF.argv

Question- Why after the line B, line in A printing all the file names?

I suggest you report a bug.

Thanks for your feedback and support. I have raised the bug ticket.

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