From: David Bailey <david.bailey@...>
Date: 2006-04-21T03:56:22+09:00
Subject: Re: Write Out Then Read In Hash of Two-element Arrays

Farrel Lifson wrote:
> Instead of writing your own de/serialization code why not give
> Marshal.dump and Marshal.load  a try:
> 
>>> dumped_histHash = Marshal.dump(histHash)
> => 
> "\004\010{\ni\000[\ai\017i\006i\006[\ai\020i\ai\a[\ai\021i\010i\010[\ai\022i\
> ti\t[\ai\023i\n"
>>> loaded_histHash = Marshal.load(dumped_histHash)
> => {0=>[10, 1], 1=>[11, 2], 2=>[12, 3], 3=>[13, 4], 4=>[14, 5]}
> 
> If you need a human readable/editable file consider using YAML:
> 
>>> require 'yaml'
> => true
>>> puts yaml_histHash = histHash.to_yaml
> ---
> 0:
>   - 10
>   - 1
> 1:
>   - 11
>   - 2
> 2:
>   - 12
>   - 3
> 3:
>   - 13
>   - 4
> 4:
>   - 14
>   - 5
> => nil
>>> loaded_histHash = YAML.load(yaml_histHash)
> => {0=>[10, 1], 1=>[11, 2], 2=>[12, 3], 3=>[13, 4], 4=>[14, 5]}
> 
> Farrel


Farrel,

Good suggestion.  Had I not forgotten about marshal and yaml (after 
having read about it a while back in the pickaxe book), I would have 
done so initally.  At any rate, thank you for the suggestion.  And for 
jogging my memory!

David

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