Ruby Script to parse ISBNs listed in R-Project to populate an Amazon

June 7, 2010

(This article was first published on R-Chart, and kindly contributed to R-bloggers)

As you probably figured out, I am an Amazon affiliate and have been giving some thought to how to get the best lists of R books available at Amazon. To get the list of ISBNs from R-Project, the following Ruby script did the trick:

require ‘rubygems’
require ‘open-uri’
require ‘hpricot’



entry.inner_text.split(“\n”).each{|l|isbns << l=~/ISBN/}
[‘.’, ‘:’, ‘-‘, ‘ISBN’,’, in German’,’, in Czech’].each{|e|



puts isbns.join(‘|’)
The pipe-delimited list could then be supplied in this Amazon Search Page. If you are interested in seeing the result, click here.

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