= CHANGELOG

== 1.1.0 :
* Issue #61 : Combine graphviz instances
* Issue #73 : Avoid constructing shell commands as strings
* Bug correction with development dependencies on JRuby

== 1.0.9 :
* Add support for attributs 
  * forcelabels
  * gradientangle
  * imagepath
  * layerlistsep
  * layerselect
* Issue #52 : Extracted xDOTScript to DOTScript class (by markus1189)
* Issue #54 : Fixes a couple of typos and spacing (by Mike Fiedler)
* Issue #55 : Avoid autoload
* Issue #57 : Add man pages for the commandline programs (by Praveen Arimbrathodiyil)
* Issue #59 : Support label as Fixnum (by Gabe Kopley)
* Issue #62 : Remove warnings (by Kenichi Kamiya)
* Issue #63 : Fix typo (by Kenichi Kamiya)
* Issue #65 : ruby-graphviz breaks autoloading of ActiveSupport::Concerns
* Update graphviz attributs

== 1.0.8 :
* Cleanup format (by markus1189)
* Issue #49 : (undefined local variable or method `file' ) (by markus1189)

== 1.0.7 :
* Issue #48 : add_graph fails when passed a GraphViz object
* Issue #47 : Find executable (by markus1189)

== 1.0.6 :
* Issue #46 : Some tests fail because it cannot find 'dot'
* Issue #45 : Fix for copy/paste error (by coding46)
* Issue #44 : characters escaping (by Neven Has)
* Issue #43 : Added lib/ruby-graphviz to match the gem name (by Postmodern)
* Issue #42 : "escaped dot in label" aka "GVPR error in Dot2Ruby"
* Issue #40 : GraphML importation doesn't work...
* Bug correction (with Ruby 1.8)
* Add (experimental) support of LibXML/LibXSLT 

== 1.0.5 :
* Change deprecated methods in gem2gv, git2gv and ruby2gv
* Issue #38
* Issue #39

== 1.0.4 :
* GraphViz::Edge#each_attribut is deprecated, please use GraphViz::Edge#each_attribute
* GraphViz::GraphML#attributs is deprecated, please, use GraphViz::GraphML#attributes
* GraphViz::Node#each_attribut is deprecated, please use GraphViz::Node#each_attribute
* Major bug correction in GraphViz::Attrs and GraphViz::parse
* An empty string means "false" for boolean attributes

== 1.0.3 :
* The GraphViz::Theory#moore_dijkstra return a path which contains GraphViz::Node instead of GraphViz::Node#id
* Add Breadth First Search algorithm (GraphViz::Theory#bfs)
* Add Depth First Search algorithm (GraphViz::Theory#dfs)
* Add GraphViz#add_edges (GraphViz#add_edge is deprecated)
* Add GraphViz#add_nodes (GraphViz#add_node is deprecated)
* Add GraphViz::generate 
* Remove definition of Array#all?

== 1.0.2 :
* Add PageRank algorithm
* Major bug corrections
* Fix utils/colors.rb's case syntax
* Modify deprecated method: Hash#index to Hash#key

== 1.0.1 : 
* Add GraphViz::DSL
* Change project to use Bundler gem tools
* Fix a few typos in the README
* Change Config to RbConfig
* Add possibility to get the x,y coordinates of each of the nodes

== 1.0.0 : 
* \o/
* GraphViz::Node#name has been removed - use GraphViz::Node#id
* The html attribute has been removed - use a label attribut (<tt>:label => '<<html/>>'</tt>)
* :output option has been removed - use :<format> => :<file>
* :file option has been removed - use :<format> => :<file>
* Add GraphViz#to_s
* Add GraphViz#add (see sample59.rb)
* GraphViz::XML.output is deprecated, use GraphViz::XML.graph.output
* Issue #22 : Error when generating a graph with an ID containing a space.

== 0.9.21 :
* Add attributes "label_scheme" and "rotation"
* Add missing options :
  * <tt>:scale => v</tt> : Scale input by 'v' (=72)
  * <tt>:inverty => [true|false]</tt> : Invert y coordinate in output
  * <tt>:no_layout => v</tt> : No layout mode 'v' (=1) -- neato only
  * <tt>:reduce => [true|false]</tt> : Reduce graph -- neato only
  * <tt>:Lg => [true|false]</tt> : Don't use grid -- fdp only
  * <tt>:LO => [true|false]</tt> : Use old attractive force -- fdp only
  * <tt>:Ln => i</tt> : Set number of iterations to i -- fdp only
  * <tt>:LU => i</tt> : Set unscaled factor to i -- fdp only
  * <tt>:LC => v</tt> : Set overlap expansion factor to v -- fdp only
  * <tt>:LT => [*]v</tt> : Set temperature (temperature factor) to v -- fdp only

== 0.9.20 :
* Add GraphViz#each_attribut, Node#each_attribut and Edge#each_attribut
* Bugs corrections in tests (by oupo)
* Major bug correction in GraphViz#output for subgraphs
* Update GraphViz.escape

== 0.9.19 :
* Add strict digraph support (by Jonas Elfström) (see sample58.rb)
    g = GraphViz.new(:G, :type => "strict digraph")
    # or 
    g = GraphViz.new(:G, :type => "digraph", :strict => true)
    # or 
    g = GraphViz.digraph(:G, :strict => true)
    # or 
    g = GraphViz.strict_digraph(:G)
* Add GraphViz#root_graph, Node#root_graph, Edge#root_graph
* The GraphML parser now accept a graphml file or string

== 0.9.18 :
* JRuby bug correction (by Nigel Thorne)
* Fix autoload problem for Rubinius (by Rolf Timmermans)
* Bugs corrections

== 0.9.17 :
* GraphViz::Edge#node_one and GraphViz::Edge#node_one now have un optional parameter to indicate if you want to (or not) get the port in the name (default: true)
* GraphViz#each_node now returns the Hash of nodes if there is no block given.
* GraphViz#each_edge now returns the list of edges if there is no block given.
* GraphViz#each_graph now returns the Hash of graphs if there is no block given.
* Add GraphViz::Node#index : return the node index
* Add GraphViz::Edge#index : return the edge index
* Add GraphViz#type : return the graph type (graph or digraph)
* Add GraphViz#get_edge_at_index and GraphViz#get_node_at_index
* Add GvDouble 
* Add GraphViz::Theory (see examples/theory/tests.rb)
* Add GraphML[http://graphml.graphdrawing.org/] support (see sample57.rb)
* fixed "edge attribut 'to_ary' invalid" on mri 1.9.2 (by Stefan Huber)

== 0.9.16 :
* Add <tt>xml2gv</tt>
* Rename <tt>GraphViz.parser2</tt> to <tt>GraphViz.parser</tt> 
* Remove treetop dependency
* Ruby 1.9 (and MacRuby) compatibility -- Issue #12: see sample38.rb
* Add GraphViz::Attrs#each and GraphViz::Attrs#to_h
* Add GraphViz::Edge#node_one and GraphViz::Edge#node_two

== 0.9.15 :
* Add <tt>GraphViz.parser2</tt>. <b>WARNING</b> this method will replace <tt>GraphViz.parser</tt>. So please don't use it, or only for testing.
* Bug correction in <tt>dot2ruby</tt>
* Add <tt>--output-format</tt> option to <tt>dot2ruby</tt>
* Add <tt>git2gv</tt>
* Issue #16 : escape graph ID

== 0.9.14 :
* Add dot2ruby script
* Remove NULL character in the DOT script
* <b>WARNING</b> : FamilyTree is (still) broken in this version !

== 0.9.13 :
* Add dot2ruby.g
* Bug correction with HTML label
* The html attribut is deprecated. You can use the label attribut, as dot do it : <tt>:label => '<<html/>>'</tt>
* Issue #15 : Thin server
* <b>WARNING</b> : FamilyTree is (still) broken in this version !

== 0.9.12 :
* GraphViz::Node#name is deprecated, you must use GraphViz::Node#id (issue #14)
* Add :nothugly option to GraphViz#output (see sample41.rb and http://www.hokstad.com/making-graphviz-output-pretty-with-xsl.html)
* Issue #13 : you must now specify a port in GraphViz::Edge.new with a syntax like this : 
    GraphViz::Edge.new( {nodeOne => :port}, {nodeTwo => :other} )
* Issue #12 : UTF8 support (see sample38.rb)
* Move and rename examples + remove maketest.[sh|bat]
* <b>WARNING</b> : FamilyTree is broken in this version !

== 0.9.11 :
* Issue #11 : Cygwin PATH
* Major bugs correction in output
* Bug correction in find_executable
* Add tests (by Chip Malice : http://github.com/hipe)

== 0.9.10 :
* Move ChangeLog in README
* Add GraphViz::FamilyTree (alpha). See examples/sample33.rb
* Major bugs corrections in GraphViz::Parser
* Issue #10 : Anonymous graph (see Subgraphs and Clusters at http://www.graphviz.org/doc/info/lang.html). See examples/sample34.rb
* GraphViz#add_graph can now take a block parameter. See example/sample34.rb
* Add GraphViz.digraph and GraphViz.graph (same as GraphViz.new( ..., :type => "digraph" ) and GraphViz.new( ..., :type => "graph" )). See examples/sample35.rb
* Add GraphViz#subgraph. See examples/sample35.rb
* GraphViz::Parser support anonymous graph
* Add lage node example. See examples/sample36.rb

== 0.9.9 :
* Add graph as an accessor to allow you to set global graph attributs (like edge and node)
* Add each_node, each_edge, each_graph (thanks to @metellius) and graph_count
* Issue #9 (partial) - Solution : by default, a node will have his label set with the node ID)

== 0.9.8 :
* Update graph and node posibility to set properties (see sample28.rb)
* Issue #7: Path option is never being used to find the executable
* Adding classes to check if the attributes are in the correct type
* Issue #8: dots in href are escaped with backslash, which corrupts the URL (see sample29.rb)
* Add posibility to use external libraries (see sample30.rb)
* Add options -u and -s to ruby2gv
* Add gem2gv

== 0.9.7 :
* Issue #2: Small bug correction in escape_path_containing_blanks (by Andreas Ronge)
* Issue #4: New find_executable (by reactive)
* Issue #3: Tempfiles created in current working directory only in Windows
* Issue #6: Respect "none" format in output options hash and respect String output-filename when the "none" format is selected. See examples/sample27.rb (by Dave Burt)

== 0.9.6 :
* jRuby support (by obruening)
* Issue #1 : STDOUT in binmode

== 0.9.5 :
* Remove 'mkmf' dependency
* GraphViz::Edge#[] modification
* Small correction to escape the dot ('.') character (by Miguel Cabrera)

== 0.9.4 :
* Escape nodes and edges attributs
* GraphViz::escape corrections (by Dave Burt)
* Add :errors option to set level of message suppression (default : suppress warning messages)

== 0.9.3 :
* Minor bug correction for Windows
* Use Open3.popen3 if installed, else use IO.popen (by Dave Burt)
* Add '-', '>' and '>>' has aliases of '<<' to create an edge.

== 0.9.2 :
* Escape nodes (by Dave Burt)
* Handle errors from graphviz command (by Dave Burt)
* Output as string (if String class is passed as file i.e. output(:pdf => String)) (by Dave Burt)

== 0.9.1 :
* Bugs corrections
* Add the ability to create edge like that : node1 << node2 << node3 ...
* Complete README
* Add a DOT parser. This parser has a lot of limitations. So don't use it in a production context !
* :output and :file options are deprecated, please use :<format> => :<file>
* You can now specify multiple outputs via :<format> => :<file> (see sample 22).

== 0.9.0 :
* Add fdp example (sample 15)
* Add edge between cluster and node and cluster and cluster support
* GraphViz.add_node now support array (sample 16)
* Bug correction in GraphViz.output (sample 19)
* Add GraphViz#default to set default options (:use, :path and :output)
* Add possibility to set node or edge attribut via :
    node.<attribut>=<value> or node.<attribut>( <value> )
    edge.<attribut>=<value> or edge.<attribut>( <value> )
* Add GraphViz::Edge.set and GraphViz::Node.set
* Add sample 20
* Add GraphViz.node_count and GraphViz.edge_count by Daniel Cadenas Nión

== 0.8.2 : 
* Update Node, Edge and Graph Attributes (see http://www.graphviz.org/doc/info/attrs.html)
* Bugs corrections

== 0.8.1 :
* Documentation

== 0.8.0 :
* Add all the features of the current graphviz version

== 0.7.0 :
* Add option "path" to output

== 0.6.0 :
* Add undirected graph support

== 0.5.0 :
* Preserve the original order of creation of nodes and edges

== 0.4.0 :
* Add HTML-Labels

== 0.3.0 :
* Bugs corrections

== 0.2.0 :
* Pure ruby

== 0.1.0 :
* Initial version