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, RegexpOffsets, UnanchoredRegexp

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(strexp) ⇒ Pattern

Returns a new instance of Pattern.


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# File 'actionpack/lib/action_dispatch/journey/path/pattern.rb', line 13

def initialize(strexp)
  @spec         = strexp.ast
  @requirements = strexp.requirements
  @separators   = strexp.separators.join
  @anchored     = strexp.anchor

  @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 7

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 7

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 7

def spec
  @spec
end

Class Method Details

.from_string(string) ⇒ Object


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# File 'actionpack/lib/action_dispatch/journey/path/pattern.rb', line 9

def self.from_string string
  new Journey::Router::Strexp.build(string, {}, ["/.?"], true)
end

Instance Method Details

#astObject


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

def ast
  @spec.grep(Nodes::Symbol).each do |node|
    re = @requirements[node.to_sym]
    node.regexp = re if re
  end

  @spec.grep(Nodes::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 26

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 164

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 44

def names
  @names ||= spec.grep(Nodes::Symbol).map { |n| n.name }
end

#optional_namesObject


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

def optional_names
  @optional_names ||= spec.grep(Nodes::Group).flat_map { |group|
    group.grep(Nodes::Symbol)
  }.map { |n| n.name }.uniq
end

#required_namesObject


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

def required_names
  @required_names ||= names - optional_names
end

#sourceObject


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# File 'actionpack/lib/action_dispatch/journey/path/pattern.rb', line 170

def source
  to_regexp.source
end

#to_regexpObject


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# File 'actionpack/lib/action_dispatch/journey/path/pattern.rb', line 174

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