lib/uri_template/rfc6570/expression/named.rb
# -*- encoding : utf-8 -*-
# The MIT License (MIT)
#
# Copyright (c) 2011-2014 Hannes Georg
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
require 'uri_template/rfc6570'
class URITemplate::RFC6570
class Expression::Named < Expression
alias self_pair pair
def to_r_source
source = regex_builder
source.group do
source.escaped_prefix
first = true
@variable_specs.each do | var, expand , max_length |
if expand
source.capture do
source.separated_list(first) do
source.character_class('+')\
.escaped_pair_connector\
.character_class_with_comma(max_length)
end
end
else
source.group do
source.escaped_separator unless first
source << Regexp.escape(var)
source.group do
source.escaped_pair_connector
source.capture do
source.character_class_with_comma(max_length)
end
source << '|' unless self.class::PAIR_IF_EMPTY
end
end.length('?')
end
first = false
end
end.length('?')
return source.join
end
def expand_partial( vars )
result = []
rest = []
defined = false
@variable_specs.each do | var, expand , max_length |
if vars.key? var
if Utils.def? vars[var]
if result.any? && !self.class::SEPARATOR.empty?
result.push( Literal.new(self.class::SEPARATOR) )
end
one = expand_one(var, vars[var], expand, max_length)
result.push( Literal.new(Array(one).join(self.class::SEPARATOR)) )
end
if expand
rest << [var, expand, max_length]
else
result.push( self.class::FOLLOW_UP.new([[var,expand,max_length]]) )
end
else
rest.push( [var,expand,max_length] )
end
end
if result.any?
unless self.class::PREFIX.empty? || empty_literals?( result )
result.unshift( Literal.new(self.class::PREFIX) )
end
result.push( self.class::BULK_FOLLOW_UP.new(rest) ) if rest.size != 0
return result
else
return [ self ]
end
end
private
def extracted_nil
self.class::PAIR_IF_EMPTY ? nil : ""
end
def after_expand(name, splitted)
result = URITemplate::Utils.pair_array_to_hash2( splitted )
if result.size == 1 && result[0][0] == name
return result
else
return [ [ name , result ] ]
end
end
end
end