Brian Candler
2/9/2007 2:46:00 PM
On Fri, Feb 09, 2007 at 11:12:46PM +0900, Rebhan, Gilbert wrote:
> i have a problem with File.open =
>
> File.open(SRCDIR<<'/'<<Dir.entries(SRCDIR).sort[2]<<'/foobar.TXT') do
> |f|
> mymethod(x)
> end
Warning:
string1 << string2
modifies string1 by adding the contents of string2. So here you are
modifying SRCDIR, which is probably not what you want, especially if you're
going round this in a loop.
SRCDIR='/tmp'
puts SRCDIR<<'/bar' # '/tmp/bar'
puts SRCDIR # '/tmp/bar'
Use + to concatenate two strings and get the result as a third,
newly-created string.
> How to get the Dirname Dir.entries(SRCDIR).sort[2] into the string
> for method File.open ?
File.open(SRCDIR + '/' + Dir.entries(SRCDIR).sort[2] + '/foobar.TXT')
or
File.open("#{SRCDIR}/#{Dir.entries(SRCDIR).sort[2]}/foobar.TXT")