Class: ActionDispatch::Journey::Path::Pattern
- Inherits:
-
Object
- Object
- ActionDispatch::Journey::Path::Pattern
show all
- Defined in:
- lib/action_dispatch/journey/path/pattern.rb
Overview
Defined Under Namespace
Classes: AnchoredRegexp, MatchData, RegexpOffsets, UnanchoredRegexp
Instance Attribute Summary collapse
Instance Method Summary
collapse
Constructor Details
#initialize(strexp) ⇒ Pattern
Returns a new instance of Pattern.
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# File 'lib/action_dispatch/journey/path/pattern.rb', line 7
def initialize(strexp)
parser = Journey::Parser.new
@anchored = true
case strexp
when String
@spec = parser.parse(strexp)
@requirements = {}
@separators = "/.?"
when Router::Strexp
@spec = parser.parse(strexp.path)
@requirements = strexp.requirements
@separators = strexp.separators.join
@anchored = strexp.anchor
else
raise ArgumentError, "Bad expression: #{strexp}"
end
@names = nil
@optional_names = nil
@required_names = nil
@re = nil
@offsets = nil
end
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Instance Attribute Details
#anchored ⇒ Object
Returns the value of attribute anchored.
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# File 'lib/action_dispatch/journey/path/pattern.rb', line 5
def anchored
@anchored
end
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#requirements ⇒ Object
Returns the value of attribute requirements.
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# File 'lib/action_dispatch/journey/path/pattern.rb', line 5
def requirements
@requirements
end
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#spec ⇒ Object
Returns the value of attribute spec.
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# File 'lib/action_dispatch/journey/path/pattern.rb', line 5
def spec
@spec
end
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Instance Method Details
#ast ⇒ Object
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# File 'lib/action_dispatch/journey/path/pattern.rb', line 33
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
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#match(other) ⇒ Object
Also known as:
=~
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# File 'lib/action_dispatch/journey/path/pattern.rb', line 167
def match(other)
return unless match = to_regexp.match(other)
MatchData.new(names, offsets, match)
end
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#names ⇒ Object
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# File 'lib/action_dispatch/journey/path/pattern.rb', line 47
def names
@names ||= spec.grep(Nodes::Symbol).map { |n| n.name }
end
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#optional_names ⇒ Object
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# File 'lib/action_dispatch/journey/path/pattern.rb', line 55
def optional_names
@optional_names ||= spec.grep(Nodes::Group).map { |group|
group.grep(Nodes::Symbol)
}.flatten.map { |n| n.name }.uniq
end
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#required_names ⇒ Object
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# File 'lib/action_dispatch/journey/path/pattern.rb', line 51
def required_names
@required_names ||= names - optional_names
end
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#source ⇒ Object
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# File 'lib/action_dispatch/journey/path/pattern.rb', line 173
def source
to_regexp.source
end
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#to_regexp ⇒ Object
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# File 'lib/action_dispatch/journey/path/pattern.rb', line 177
def to_regexp
@re ||= regexp_visitor.new(@separators, @requirements).accept spec
end
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