To manage simple collections using (YAML to be deprecated) and DLittle (a little and lovely lispish description language).
Here is a sample of a possible data.
(author : Aldiss / Brian
(serie : helliconia
(title: Le printemps d''helliconia (read: no) (style: SF) (price: 1))
(title: Helliconia, l''ete (read: no) (style: SF) (price: 1))
(title: L''hiver d''helliconia (read: no) (style: SF) (price: 1))
(books : individual
(title: L''instant de l''eclipse (read: no) (style: fantaisie) (price: 1))
To install the packages of Collector, go to the Playground (Ctrl+OW) in your Pharo image and execute the following Metacello script (select it and press Do-it button or Ctrl+D):
Metacello new
baseline: 'Collector';
repository: 'github:https://Ducasse/Collector/src'If you want to depend on it
spec
baseline: 'Collector'
with: [ spec repository: 'github:https://Ducasse/Collector/src' ].