Class: ActionDispatch::Journey::Path::Pattern

Inherits:
Object
  • Object
show all
Defined in:
actionpack/lib/action_dispatch/journey/path/pattern.rb

Overview

:nodoc:

Defined Under Namespace

Classes: AnchoredRegexp, MatchData, UnanchoredRegexp

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(ast, requirements, separators, anchored) ⇒ Pattern

Returns a new instance of Pattern.


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# File 'actionpack/lib/action_dispatch/journey/path/pattern.rb', line 17

def initialize(ast, requirements, separators, anchored)
  @spec         = ast
  @requirements = requirements
  @separators   = separators
  @anchored     = anchored

  @names          = nil
  @optional_names = nil
  @required_names = nil
  @re             = nil
  @offsets        = nil
end

Instance Attribute Details

#anchoredObject (readonly)

Returns the value of attribute anchored


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# File 'actionpack/lib/action_dispatch/journey/path/pattern.rb', line 5

def anchored
  @anchored
end

#requirementsObject (readonly)

Returns the value of attribute requirements


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# File 'actionpack/lib/action_dispatch/journey/path/pattern.rb', line 5

def requirements
  @requirements
end

#specObject (readonly)

Returns the value of attribute spec


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# File 'actionpack/lib/action_dispatch/journey/path/pattern.rb', line 5

def spec
  @spec
end

Class Method Details

.build(path, requirements, separators, anchored) ⇒ Object


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# File 'actionpack/lib/action_dispatch/journey/path/pattern.rb', line 11

def self.build(path, requirements, separators, anchored)
  parser = Journey::Parser.new
  ast = parser.parse path
  new ast, requirements, separators, anchored
end

.from_string(string) ⇒ Object


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# File 'actionpack/lib/action_dispatch/journey/path/pattern.rb', line 7

def self.from_string string
  build(string, {}, "/.?", true)
end

Instance Method Details

#astObject


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# File 'actionpack/lib/action_dispatch/journey/path/pattern.rb', line 34

def ast
  @spec.find_all(&:symbol?).each do |node|
    re = @requirements[node.to_sym]
    node.regexp = re if re
  end

  @spec.find_all(&:star?).each do |node|
    node = node.left
    node.regexp = @requirements[node.to_sym] || /(.+)/
  end

  @spec
end

#build_formatterObject


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# File 'actionpack/lib/action_dispatch/journey/path/pattern.rb', line 30

def build_formatter
  Visitors::FormatBuilder.new.accept(spec)
end

#match(other) ⇒ Object Also known as: =~


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# File 'actionpack/lib/action_dispatch/journey/path/pattern.rb', line 148

def match(other)
  return unless match = to_regexp.match(other)
  MatchData.new(names, offsets, match)
end

#namesObject


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# File 'actionpack/lib/action_dispatch/journey/path/pattern.rb', line 48

def names
  @names ||= spec.find_all(&:symbol?).map(&:name)
end

#optional_namesObject


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# File 'actionpack/lib/action_dispatch/journey/path/pattern.rb', line 56

def optional_names
  @optional_names ||= spec.find_all(&:group?).flat_map { |group|
    group.find_all(&:symbol?)
  }.map(&:name).uniq
end

#required_namesObject


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# File 'actionpack/lib/action_dispatch/journey/path/pattern.rb', line 52

def required_names
  @required_names ||= names - optional_names
end

#sourceObject


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# File 'actionpack/lib/action_dispatch/journey/path/pattern.rb', line 154

def source
  to_regexp.source
end

#to_regexpObject


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# File 'actionpack/lib/action_dispatch/journey/path/pattern.rb', line 158

def to_regexp
  @re ||= regexp_visitor.new(@separators, @requirements).accept spec
end