Class: Waves::Matchers::Path

Inherits:
Base show all
Defined in:
lib/matchers/path.rb

Instance Attribute Summary

Attributes inherited from Base

#constraints

Instance Method Summary collapse

Methods inherited from Base

#[], #test

Constructor Details

#initialize(pattern) ⇒ Path

Takes an array of pattern elements … coming soon, support for formatted strings!



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# File 'lib/matchers/path.rb', line 8

def initialize( pattern ) ; @pattern = pattern  ; end

Instance Method Details

#call(request) ⇒ Object 



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# File 'lib/matchers/path.rb', line 10

def call( request )
  return {} if @pattern == true or @pattern == false or @pattern.nil?
  path = extract_path( request ).reverse
  return {} if ( path.empty? and @pattern.empty? )
  capture = {}
  match =  @pattern.all? do | want |
    case want
    when true # means 1..-1
      path = [] unless path.empty?
    when Range 
      if want.end == -1
        path = [] if path.length >= want.begin
      else
        path = [] if want.include? path.length
      end
    when String then want == path.pop
    when Symbol then capture[ want ] = path.pop
    when Regexp then want === path.pop
    when Hash
      key, value = want.to_a.first
      case value
      when true
        ( capture[ key ], path = path.reverse, [] ) unless path.empty?
      when Range
        if value.end == -1
          ( capture[ key ], path = path.reverse, [] ) if path.length >= value.begin
        else
          ( capture[ key ], path = path.reverse, [] ) if value.include? path.length
        end
      when String, Symbol
        got = path.pop
        capture[ key ] = got ? got : value.to_s
      when Regexp then
        got = path.pop
        capture[ key ] = got if value === got
      end
    end
  end
  capture if match && path.empty?
end