From: Eric Jacoboni <jaco@...>
Date: 2006-02-11T03:43:23+09:00
Subject: Re: Yet another question on exceptions

David Vallner <david@vallner.net> writes:

> Well, File.open in the block version will reraise the exception precisely to 
> let you do that, it's not supposed to silently ignore errors.

Ok, perhaps i'm not clear or perhaps i've missed something...

Suppose i want my script exit with different values depending on the
error cases:

% ruby -e 'File.open("no.txt") {|f| line = f.gets}'
-e:1:in `initialize': No such file or directory - no.txt (Errno::ENOENT)
        from -e:1
% echo $?
1
% ruby -e 'File.open("yes.txt") {|f| f.puts("bla")}'
-e:1:in `write': not opened for writing (IOError)
        from -e:1
        from -e:1
[titine]:~/Desktop % echo $?                                           
1

As it's clearly not the same error, i don't want the same return
status. As i don't know how to manage this gracefully with Ruby, i'm
using a well-know idiom (at least for me...). That said, if there a
more rubywaying solution, i buy it.

-- 
Eric Jacoboni, ne il y a 1443036511 secondes