Array to Hash in 1.8.6 vs 1.8.7


#1

I’m damn toast!

My dev machine runs a manually compiled 1.8.7 version of Ruby. My server
runs a Debian Etch with Ruby 1.8.6 version.

From a string:

1:2_5:6

I want to convert it to a hash: {“1” => “2”, “5” => “6”}

On my dev machine the following works:
Hash[(session.split("_").map { |couples| couples.split(":") }).flatten]

On my server it pukes on me with the following error:
odd number of arguments for Hash

How can I fix it with Ruby 1.8.6 and 1.8.7 compatibility? I don’t want
to play with the Ruby version of Debian etch as it’s the latest
available package.

Many thanks in advance.


#2

Fernando P. schrieb:

Many thanks in advance.
use * like this
Hash[*(session.split("_").map { |couples| couples.split(":")
}).flatten]


#3

use * like this
Hash[*(session.split("_").map { |couples| couples.split(":")
}).flatten]

Damn splat operator! Thank you so much!!! It works!


#4

Fernando P. wrote:

I’m damn toast!

My dev machine runs a manually compiled 1.8.7 version of Ruby. My server
runs a Debian Etch with Ruby 1.8.6 version.

From a string:

1:2_5:6

I want to convert it to a hash: {“1” => “2”, “5” => “6”}

On my dev machine the following works:
Hash[(session.split("_").map { |couples| couples.split(":") }).flatten]

On my server it pukes on me with the following error:
odd number of arguments for Hash

How can I fix it with Ruby 1.8.6 and 1.8.7 compatibility? I don’t want
to play with the Ruby version of Debian etch as it’s the latest
available package.

Many thanks in advance.

Here’s something less tortured (although still too gruesome for my
tastes):

str = ‘1:2_5:6’
result = Hash[*str.split(/[:_]/)]

p result

–output:–
{“1”=>“2”, “5”=>“6”}