42 lines
1.1 KiB
Ruby
42 lines
1.1 KiB
Ruby
require 'singleton'
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module BinData
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# This registry contains a register of name -> class mappings.
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class Registry
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include Singleton
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def initialize
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@registry = {}
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end
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# Convert camelCase +name+ to underscore style.
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def underscore_name(name)
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name.to_s.sub(/.*::/, "").
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gsub(/([A-Z]+)([A-Z][a-z])/,'\1_\2').
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gsub(/([a-z\d])([A-Z])/,'\1_\2').
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tr("-", "_").
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downcase
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end
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# Registers the mapping of +name+ to +klass+. +name+ is converted
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# from camelCase to underscore style.
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# Returns the converted name
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def register(name, klass)
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# convert camelCase name to underscore style
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key = underscore_name(name)
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# warn if replacing an existing class
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if $VERBOSE and (existing = @registry[key])
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warn "warning: replacing registered class #{existing} with #{klass}"
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end
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@registry[key] = klass
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key.dup
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end
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# Returns the class matching a previously registered +name+.
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def lookup(name)
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@registry[name.to_s]
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end
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end
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end |