Warning: split (...) interpreted as method call

ruby-talk
1

Hello,

when I run this simple program:

#!/usr/bin/ruby -w
fh = File.open(“zero”);
fh.each { |d|
arr = d.split (///);
}

on a file with ‘/’ delimited lines, I get this error message:

warning: split (…) interpreted as method call

However, if I run it on the commandline, such as this:

ruby -e ‘fh = File.open(“zero”); fh.each { |d| arr = d.splt (///); }’

I don’t get any errors.

Can someone explain why I see this error?

db

···

–
Feb 6 King George VI of UK dies; his daughter becomes Elizabeth II, 1952
Feb 6 New Zealand Day

2

There are two answers:

  • you asked for it (with the -w flag)
  • you wrote “split (…)” instead of “split(…)”
    (the ambiguity gives rise to the warning)

Gavin

···

On Friday, February 7, 2003, 4:59:38 AM, Daniel wrote:

Can someone explain why I see this error?

3

ah, thanks much. I thought the parser would just take care of that
without problems.

Daniel

···

On Fri, Feb 07, 2003 at 03:04:39AM +0900, Gavin Sinclair wrote:

On Friday, February 7, 2003, 4:59:38 AM, Daniel wrote:

Can someone explain why I see this error?

There are two answers:

  • you asked for it (with the -w flag)
  • you wrote “split (…)” instead of “split(…)”
    (the ambiguity gives rise to the warning)

Gavin

–
Feb 6 King George VI of UK dies; his daughter becomes Elizabeth II, 1952
Feb 6 New Zealand Day