Finish 3.1.0

.travis.yml

@@ -1,23 +1,16 @@
 language: ruby
-bundler_args: --without debug
 script: "bundle exec rspec spec"
-before_install:
-  - 'gem update --system --conservative || (gem i "rubygems-update:~>2.7" --no-document && update_rubygems)'
-  - 'gem update bundler --conservative'
 env:
   - CI=true
 rvm:
-  - 2.2.2
-  - 2.3
   - 2.4
   - 2.5
   - 2.6
+  - 2.7
   - jruby
-  - rbx-3
 cache: bundler
 sudo: false
 matrix:
   allow_failures:
     - rvm: jruby
-    - rvm: rbx-3
 dist: trusty

Gemfile

@@ -10,6 +10,9 @@ group :develop do
   gem "rdf-vocab",      git: "https://github.com/ruby-rdf/rdf-vocab",       branch: "develop"
   gem "rdf-xsd",        git: "https://github.com/ruby-rdf/rdf-xsd",         branch: "develop"
 
+  gem "ebnf",           git: "https://github.com/gkellogg/ebnf",            branch: "develop"
+  gem "sxp",            git: "https://github.com/dryruby/sxp",              branch: "develop"
+
   gem 'rest-client-components'
   gem 'benchmark-ips'
 
@@ -29,6 +32,6 @@ group :test do
   gem "rake"
   gem "equivalent-xml"
   gem 'fasterer'
-  gem 'simplecov',  require: false, platform: :mri
-  gem 'coveralls',  require: false, platform: :mri
+  gem 'simplecov',  platforms: :mri
+  gem 'coveralls',  '~> 0.8', platforms: :mri
 end

README.md

@@ -29,7 +29,8 @@ This is a pure-Ruby library for working with [Resource Description Framework
   not modify any of Ruby's core classes or standard library.
 * Based entirely on Ruby's autoloading, meaning that you can generally make
   use of any one part of the library without needing to load up the rest.
-* Compatible with Ruby Ruby >= 2.2.2, Rubinius and JRuby 9.0+.
+* Compatible with Ruby Ruby >= 2.4, Rubinius and JRuby 9.0+.
+  * Note, changes in mapping hashes to keyword arguments for Ruby 2.7+ may require that arguments be passed more explicitly, especially when the first argument is a Hash and there are optional keyword arguments. In this case, Hash argument may need to be explicitly included within `{}` and the optional keyword arguments may need to be specified using `**{}` if there are no keyword arguments.
 * Performs auto-detection of input to select appropriate Reader class if one
   cannot be determined from file characteristics.
 
@@ -189,7 +190,7 @@ Note that no prefixes are loaded automatically, however they can be provided as
         FOAF.name => :name,
         FOAF.mbox => :email,
       }
-    })
+    }, **{})
 
     query.execute(graph) do |solution|
       puts "name=#{solution.name} email=#{solution.email}"

VERSION

@@ -1 +1 @@
-3.0.13
+3.1.0

examples/query_bench.rb

@@ -6,9 +6,9 @@
 require 'rdf/ntriples'
 graph = RDF::Graph.load("etc/doap.nt")
 
-puts graph.query(predicate: RDF::Vocab::FOAF.name).is_a?(RDF::Queryable)
+puts graph.query({predicate: RDF::Vocab::FOAF.name}).is_a?(RDF::Queryable)
 
 Benchmark.ips do |x|
   x.config(:time => 10, :warmup => 5)
-  x.report('query_pattern') { graph.query(predicate: RDF::Vocab::FOAF.name) {} }
+  x.report('query_pattern') { graph.query({predicate: RDF::Vocab::FOAF.name}) {} }
 end

lib/rdf.rb

@@ -79,37 +79,44 @@ def self.const_missing(constant)
   #
   # @param (see RDF::Resource#initialize)
   # @return [RDF::Resource]
-  def self.Resource(*args, &block)
-    Resource.new(*args, &block)
+  def self.Resource(*args)
+    Resource.new(*args)
   end
 
   ##
   # Alias for `RDF::Node.new`.
   #
   # @param (see RDF::Node#initialize)
   # @return [RDF::Node]
-  def self.Node(*args, &block)
-    Node.new(*args, &block)
+  def self.Node(*args)
+    Node.new(*args)
   end
 
   ##
   # Cast to a URI. If already a URI, return the passed argument.
   #
   # @param (see RDF::URI#initialize)
   # @return [RDF::URI]
-  def self.URI(uri, *args, &block)
-    uri.respond_to?(:to_uri) ? uri.to_uri : URI.new(uri, *args, &block)
+  def self.URI(*args)
+    if args.first.respond_to?(:to_uri)
+      args.first.to_uri
+    elsif args.first.is_a?(Hash)
+      URI.new(**args.first)
+    else
+      opts = args.last.is_a?(Hash) ? args.pop : {}
+      URI.new(*args, **opts)
+    end
   end
 
   ##
   # Alias for `RDF::Literal.new`.
   #
   # @param (see RDF::Literal#initialize)
   # @return [RDF::Literal]
-  def self.Literal(literal, *args, &block)
+  def self.Literal(literal, **options)
     case literal
       when RDF::Literal then literal
-      else Literal.new(literal, *args, &block)
+      else Literal.new(literal, **options)
     end
   end
 
@@ -119,7 +126,7 @@ def self.Literal(literal, *args, &block)
   # @param (see RDF::Graph#initialize)
   # @return [RDF::Graph]
   def self.Graph(**options, &block)
-    Graph.new(options, &block)
+    Graph.new(**options, &block)
   end
 
   ##
@@ -171,11 +178,11 @@ def self.List(*args)
   #   @option options [RDF::Resource]  :graph_name   (nil)
   #   @return [RDF::Statement]
   #
-  def self.Statement(*args)
-    if args.empty?
+  def self.Statement(*args, **options)
+    if args.empty? && options.empty?
       RDF[:Statement]
     else
-      Statement.new(*args)
+      Statement.new(*args, **options)
     end
   end
 

lib/rdf/changeset.rb

@@ -42,7 +42,7 @@ class Changeset
     # @yieldparam [RDF::Changeset] changes
     # @return [void]
     def self.apply(mutable, **options, &block)
-      self.new(&block).apply(mutable, options)
+      self.new(&block).apply(mutable, **options)
     end
 
     ##

lib/rdf/cli.rb

@@ -175,7 +175,7 @@ def to_hash
           unless repository.count > 0
             start = Time.new
             count = 0
-            self.parse(argv, opts) do |reader|
+            self.parse(argv, **opts) do |reader|
               reader.each_statement do |statement|
                 count += 1
               end
@@ -240,7 +240,7 @@ def to_hash
           out = opts[:output]
           opts = opts.merge(prefixes: {})
           writer_opts = opts.merge(standard_prefixes: true)
-          writer_class.new(out, writer_opts) do |writer|
+          writer_class.new(out, **writer_opts) do |writer|
             writer << repository
           end
         end
@@ -501,7 +501,7 @@ def self.exec(args, output: $stdout, option_parser: nil, messages: {}, **options
       if cmds.any? {|c| COMMANDS[c.to_sym][:parse]}
         start = Time.new
         count = 0
-        self.parse(args, options) do |reader|
+        self.parse(args, **options) do |reader|
           @repository << reader
         end
         secs = Time.new - start
@@ -575,7 +575,7 @@ def self.load_commands
         RDF::Format.each do |format|
           format.cli_commands.each do |command, options|
             options = {lambda: options} unless options.is_a?(Hash)
-            add_command(command, options)
+            add_command(command, **options)
           end
         end
         @commands_loaded = true
@@ -637,13 +637,13 @@ def self.parse(files, evaluate: nil, format: nil, encoding: Encoding::UTF_8, **o
         r = RDF::Reader.for(format|| {sample: sample})
         raise ArgumentError, "Unknown format for evaluated input" unless r
         (@readers ||= []) << r
-        r.new(input, options) do |reader|
+        r.new(input, **options) do |reader|
           yield(reader)
         end
       else
         options[:format] = format if format
         files.each do |file|
-          RDF::Reader.open(file, options) do |reader|
+          RDF::Reader.open(file, **options) do |reader|
             (@readers ||= []) << reader.class.to_s
             yield(reader)
           end

lib/rdf/format.rb

@@ -122,7 +122,7 @@ def self.each(file_name: nil,
         sample = case sample
         when Proc then sample.call.to_s
         else sample.dup.to_s
-        end.force_encoding(Encoding::ASCII_8BIT)
+        end.dup.force_encoding(Encoding::ASCII_8BIT)
         # Given a sample, perform format detection across the appropriate formats, choosing the last that matches
         # Return last format that has a positive detection
         formats = formats.select {|f| f.detect(sample)}
@@ -145,10 +145,10 @@ def self.each(file_name: nil,
     #   @param  [String, RDF::URI] filename
     #   @return [Class]
     #
-    # @overload for(**options)
+    # @overload for(options)
     #   Finds an RDF serialization format class based on various options.
     #
-    #   @param  [Hash{Symbol => Object}] options
+    #   @param  [Hash{Symbol => Object}] options ({})
     #   @option options [String, #to_s]   :file_name      (nil)
     #   @option options [Symbol, #to_sym] :file_extension (nil)
     #   @option options [String, #to_s]   :content_type   (nil)
@@ -164,27 +164,34 @@ def self.each(file_name: nil,
     #   @yieldreturn [String] another way to provide a sample, allows lazy for retrieving the sample.
     #
     # @return [Class]
-    def self.for(*args, **options, &block)
+    def self.for(*arg, &block)
+      case arg.length
+      when 0 then arg = nil
+      when 1 then arg = arg.first
+      else
+        raise ArgumentError, "Format.for accepts zero or one argument, got #{arg.length}."
+      end
+
+      options =  arg.is_a?(Hash) ? arg : {}
       options = {sample: block}.merge(options) if block_given?
-      formats = case args.first
+      formats = case arg
       when String, RDF::URI
         # Find a format based on the file name
-        self.each(file_name: args.first, **options).to_a
+        self.each(file_name: arg, **options).to_a
       when Symbol
         # Try to find a match based on the full class name
         # We want this to work even if autoloading fails
-        fmt = args.first
-        classes = self.each(options).select {|f| f.symbols.include?(fmt)}
+        classes = self.each(**options).select {|f| f.symbols.include?(arg)}
         if classes.empty?
-          classes = case fmt
+          classes = case arg
           when :ntriples then [RDF::NTriples::Format]
           when :nquads   then [RDF::NQuads::Format]
           else                []
           end
         end
         classes
       else
-        self.each(options.merge(all_if_none: false)).to_a
+        self.each(**options.merge(all_if_none: false)).to_a
       end
 
       # Return the last detected format

lib/rdf/mixin/enumerable.rb

@@ -220,7 +220,7 @@ def has_triple?(triple)
     def each_triple
       if block_given?
         each_statement do |statement|
-          yield *statement.to_triple
+          yield(*statement.to_triple)
         end
       end
       enum_triple
@@ -282,7 +282,7 @@ def has_quad?(quad)
     def each_quad
       if block_given?
         each_statement do |statement|
-          yield *statement.to_quad
+          yield(*statement.to_quad)
         end
       end
       enum_quad

lib/rdf/mixin/mutable.rb

@@ -37,10 +37,10 @@ def immutable?
     # @option options [RDF::Resource] :graph_name
     #   Set set graph name of each loaded statement
     # @return [void]
-     def load(url, graph_name: nil, **options)
+    def load(url, graph_name: nil, **options)
       raise TypeError.new("#{self} is immutable") if immutable?
 
-      Reader.open(url, {base_uri: url}.merge(options)) do |reader|
+      Reader.open(url, base_uri: url, **options) do |reader|
         if graph_name
           statements = []
           reader.each_statement do |statement|

lib/rdf/mixin/queryable.rb

@@ -19,7 +19,7 @@ module Queryable
     #
     # @example Querying for statements having a given predicate
     #     queryable.query([nil, RDF::Vocab::DOAP.developer, nil])
-    #     queryable.query(predicate: RDF::Vocab::DOAP.developer) do |statement|
+    #     queryable.query({predicate: RDF::Vocab::DOAP.developer}) do |statement|
     #       puts statement.inspect
     #     end
     #
@@ -50,7 +50,7 @@ def query(pattern, **options, &block)
           solutions = RDF::Query::Solutions.new
           block = lambda {|solution| solutions << solution} unless block_given?
           before_query(pattern) if respond_to?(:before_query)
-          query_execute(pattern, options, &block)
+          query_execute(pattern, **options, &block)
           after_query(pattern) if respond_to?(:after_query)
           # Returns the solutions, not an enumerator
           solutions
@@ -85,7 +85,7 @@ def query(pattern, **options, &block)
 
             # Otherwise, we delegate to `#query_pattern`:
             else # pattern.variable?
-              query_pattern(pattern, options, &block)
+              query_pattern(pattern, **options, &block)
           end
           after_query(pattern) if respond_to?(:after_query)
           enum
@@ -116,7 +116,7 @@ def query_execute(query, **options, &block)
       # query execution by breaking down the query into its constituent
       # triple patterns and invoking `RDF::Query::Pattern#execute` on each
       # pattern.
-      query.execute(self, options, &block)
+      query.execute(self, **options, &block)
     end
     protected :query_execute
 

lib/rdf/model/graph.rb

@@ -211,7 +211,7 @@ def anonymous?
     # @return [Integer]
     # @see    RDF::Enumerable#count
     def count
-      @data.query(graph_name: graph_name || false).count
+      @data.query({graph_name: graph_name || false}).count
     end
 
     ##
@@ -237,7 +237,7 @@ def has_statement?(statement)
     # @see    RDF::Enumerable#each_statement
     def each(&block)
       if @data.respond_to?(:query)
-        @data.query(graph_name: graph_name || false, &block)
+        @data.query({graph_name: graph_name || false}, &block)
       elsif @data.respond_to?(:each)
         @data.each(&block)
       else