Class: NYNY::RouteSignature

Inherits:
Object
  • Object
show all
Defined in:
lib/nyny/route_signature.rb

Constant Summary collapse

NAME_PATTERN = 
/:(\S+)/

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(signature) ⇒ RouteSignature

Returns a new instance of RouteSignature.



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# File 'lib/nyny/route_signature.rb', line 6

def initialize signature
  @pattern = pattern_for signature
end

Instance Attribute Details

#pattern ⇒ Object (readonly)

Returns the value of attribute pattern.



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# File 'lib/nyny/route_signature.rb', line 5

def pattern
  @pattern
end

Instance Method Details

#build_regex(signature) ⇒ Object 



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# File 'lib/nyny/route_signature.rb', line 15

def build_regex signature
  return %r(^#{signature}$) unless signature.include?(':')

  groups = signature.split('/').map do |part|
    next part if part.empty?
    next part unless part.start_with? ':'
    name = NAME_PATTERN.match(part)[1]
    %Q{(?<#{name}>\\S+)}
  end.select {|s| !s.empty? }.join('\/')

  %r(^\/#{groups}$)
end

#match(path) ⇒ Object 



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# File 'lib/nyny/route_signature.rb', line 28

def match path
  data = pattern.match path
  if data
    Hash[data.names.map {|n| [n.to_sym, URI.unescape(data[n])]}]
  end
end

#pattern_for(signature) ⇒ Object 



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# File 'lib/nyny/route_signature.rb', line 10

def pattern_for signature
  return signature if signature.is_a? Regexp
  build_regex(signature.start_with?('/') ? signature : "/#{signature}")
end