From: "nobu (Nobuyoshi Nakada)" <nobu@...>
Date: 2013-03-28T21:35:03+09:00
Subject: [ruby-core:53797] [Backport 200 - Backport #8175][Closed] ARGF#skip doesn't work as documented.


Issue #8175 has been updated by nobu (Nobuyoshi Nakada).

Status changed from Open to Closed

pritamdey (pritam dey) wrote:
> 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.

ARGF isn't a class, so it's ARGF.skip.

> Code - I:
> Question- Why after the line B, line in A printing all the file names?

ARGF.skip just sets the current file, argv is untouched.

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

Before the line A no files is assigned to the current file, and
ARGF.skip tries to open the next file, "a.txt".

----------------------------------------
Backport #8175: ARGF#skip doesn't work as documented.
https://bugs.ruby-lang.org/issues/8175#change-37996

Author: pritamdey (pritam dey)
Status: Closed
Priority: Normal
Assignee: 
Category: 
Target version: 


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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