Module: Amazon

Defined in:
lib/amazon.rb,
lib/amazon/aws.rb,
lib/amazon/aws/cache.rb,
lib/amazon/aws/search.rb,
lib/amazon/aws/shoppingcart.rb

Overview

$Id: search.rb,v 1.49 2010/03/19 19:28:19 ianmacd Exp $

Defined Under Namespace

Modules: AWS Classes: AmazonError, Config

Constant Summary collapse

NAME = 
'Ruby/Amazon'
@@config = 
{}

Class Method Summary collapse

Class Method Details

.dprintf(format = '', *args) ⇒ Object

Prints debugging messages and works like printf, except that it prints only when Ruby is run with the -d switch.



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# File 'lib/amazon.rb', line 24

def Amazon.dprintf(format='', *args)
  $stderr.printf( format + "\n", *args ) if $DEBUG
end

.uncamelise(string) ⇒ Object

Convert a string from CamelCase to ruby_case.



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# File 'lib/amazon.rb', line 42

def Amazon.uncamelise(string)
  # Avoid modifying by reference.
  #
  string = string.dup

  # Don't mess with string if all caps.
  #
  if string =~ /[a-z]/
    string.gsub!( /(.+?)(([A-Z][a-z]|[A-Z]+$))/, "\\1_\\2" )
  end

  # Convert to lower case.
  #
  string.downcase
end

.url_encode(string) ⇒ Object

Encode a string, such that it is suitable for HTTP transmission.



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# File 'lib/amazon.rb', line 30

def Amazon.url_encode(string)

  # Shamelessly plagiarised from Wakou Aoyama's cgi.rb, but then altered
  # slightly to please AWS.
  #
  string.gsub( /([^a-zA-Z0-9_.~-]+)/ ) do
    '%' + $1.unpack( 'H2' * $1.bytesize ).join( '%' ).upcase
  end
end