Class: Addressable::Template::MatchData

Inherits:
Object
  • Object
show all
Defined in:
lib/addressable/template.rb

Overview

This class represents the data that is extracted when a Template is matched against a URI.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(uri, template, mapping) ⇒ MatchData

Creates a new MatchData object. MatchData objects should never be instantiated directly.

Parameters:


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# File 'lib/addressable/template.rb', line 102

def initialize(uri, template, mapping)
  @uri = uri.dup.freeze
  @template = template
  @mapping = mapping.dup.freeze
end

Instance Attribute Details

#mappingHash (readonly)

Returns The mapping that resulted from the match. Note that this mapping does not include keys or values for variables that appear in the Template, but are not present in the URI.

Returns:

  • (Hash)

    The mapping that resulted from the match. Note that this mapping does not include keys or values for variables that appear in the Template, but are not present in the URI.


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# File 'lib/addressable/template.rb', line 124

def mapping
  @mapping
end

#templateAddressable::Template (readonly)

Returns The Template used for the match.

Returns:


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# File 'lib/addressable/template.rb', line 116

def template
  @template
end

#uriAddressable::URI (readonly)

Returns The URI that the Template was matched against.

Returns:


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# File 'lib/addressable/template.rb', line 111

def uri
  @uri
end

Instance Method Details

#[](key, len = nil) ⇒ Array, ...

Accesses captured values by name or by index.

Parameters:

  • key (String, Symbol, Fixnum)

    Capture index or name. Note that when accessing by with index of 0, the full URI will be returned. The intention is to mimic the ::MatchData#[] behavior.

  • len (#to_int, nil) (defaults to: nil)

    If provided, an array of values will be returend with the given parameter used as length.

Returns:

  • (Array, String, nil)

    The captured value corresponding to the index or name. If the value was not provided or the key is unknown, nil will be returned.

    If the second parameter is provided, an array of that length will be returned instead.


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# File 'lib/addressable/template.rb', line 169

def [](key, len = nil)
  if len
    to_a[key, len]
  elsif String === key or Symbol === key
    mapping[key.to_s]
  else
    to_a[key]
  end
end

#inspectString

Returns a String representation of the MatchData's state.

Returns:

  • (String)

    The MatchData's state, as a String.


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# File 'lib/addressable/template.rb', line 212

def inspect
  sprintf("#<%s:%#0x RESULT:%s>",
    self.class.to_s, self.object_id, self.mapping.inspect)
end

#pre_matchString Also known as: post_match

Dummy method for code expecting a ::MatchData instance

Returns:

  • (String)

    An empty string.


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# File 'lib/addressable/template.rb', line 221

def pre_match
  ""
end

#to_aArray

Returns Array with the matched URI as first element followed by the captured values.

Returns:

  • (Array)

    Array with the matched URI as first element followed by the captured values.


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# File 'lib/addressable/template.rb', line 183

def to_a
  [to_s, *values]
end

#to_sString Also known as: string

Returns The matched URI as String.

Returns:

  • (String)

    The matched URI as String.


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# File 'lib/addressable/template.rb', line 190

def to_s
  uri.to_s
end

#valuesArray Also known as: captures

Returns The list of values that were captured by the Template. Note that this list will include nils for any variables which were in the Template, but did not appear in the URI.

Returns:

  • (Array)

    The list of values that were captured by the Template. Note that this list will include nils for any variables which were in the Template, but did not appear in the URI.


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# File 'lib/addressable/template.rb', line 142

def values
  @values ||= self.variables.inject([]) do |accu, key|
    accu << self.mapping[key]
    accu
  end
end

#values_at(*indexes) ⇒ Array

Returns multiple captured values at once.

Parameters:

  • *indexes (String, Symbol, Fixnum)

    Indices of the captures to be returned

Returns:

  • (Array)

    Values corresponding to given indices.

See Also:


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# File 'lib/addressable/template.rb', line 204

def values_at(*indexes)
  indexes.map { |i| self[i] }
end

#variablesArray Also known as: keys, names

Returns The list of variables that were present in the Template. Note that this list will include variables which do not appear in the mapping because they were not present in URI.

Returns:

  • (Array)

    The list of variables that were present in the Template. Note that this list will include variables which do not appear in the mapping because they were not present in URI.


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# File 'lib/addressable/template.rb', line 131

def variables
  self.template.variables
end