% graphviz - Changelog % Ivan Lazar Miljenovic Release History and Changelog ============================= The following is information about what major changes have gone into each release. Changes in 2999.9.0.0 --------------------- * graphviz now has an FAQ and an improved README as well as its own [homepage](http://projects.haskell.org/graphviz/). * Canonicalisation of `DotRepr` values is now available with the `canonicalise` function. * Add support for record labels; values are automatically escaped/unescaped. The `Record` and `MRecord` shapes have been added for use with these labels. **Requested by Minh Thu and Eric Kow.** * Add support for HTML-like values (this replaces the wrong and completely broken URL datatype). Strings are automatically escaped/unescaped. * Named `PortPos` values are now accepted (as required for record and HTML-like labels). * `GraphID` no longer allows HTML-like values (since Graphviz doesn't seem to allow it). * `RankSep` takes a list of `Double` values as required. * `Attribute` has a new constructor `UnknownAttribute` for use when parsing deprecated Graphviz attributes in old Dot code. * Various parsing fixes; of special note: - Statements no longer need to end in a semi-colon; - Anonymous sub-graphs are now supported. - Edge statements can now handle node groupings (e.g. ` a -> {b c}`) as well as `portPos` values (e.g. `a:from -> b:to`). - Unquoted `String`s containing non-ASCII characters are now parsed properly (though they are assumed to be encoded with UTF-8). **Thanks to Jules Bean (aka quicksilver) for working out how to do this.** More specifically: almost all Dot files that ship with Graphviz, as documentation in the Linux kernel, etc. are now parseable. * A new script to assist in testing whether "real-world" Dot graphs are parseable. * Slight performance increase when parsing: whereas parsing is done case-insensitively, the "correct" case is now checked by default which has a moderate affect on parsing times. * Split lines are now able to be handled when parsing. Changes in 2999.8.0.0 --------------------- * Added support for generalised `DotGraph`s; this optional representation removes the restriction of ordering of Dot statements. This allows for greater flexibility of how to specify Dot code. As an offshoot from this, most relevant functions now utilise a new `DotRepr` class that work with both `DotGraph`s and the new `GDotGraph`s; this shouldn't affect any code already in use. * With the **prompting of Noam Lewis**, the augmentation functions have been revamped in two ways: - Now contains support for multiple edges. - The ability to perform "manual" augmentation if greater control is desired. * Add a preview function to quickly render and visualise an `FGL` graph using the `Xlib` canvas. * Added a pseudo-inverse of the `FGL -> Dot` functions (a graph is created, but the original node and edge labels are unrecoverable). * The `Printing` and `Parsing` modules have been moved (from `Data.GraphViz.Types` to `Data.GraphViz`). * Reworked file-generating commands such that they return the filename of the created file if successful. Changes in 2999.7.0.0 --------------------- * Updated and extended functions to interact with the Graphviz tools. This now includes: - a better listing of available output types; - distinguishing file outputs from canvas outputs; - ability to automatically add the correct file extension to file outputs - Return any errors if calling Graphviz failed rather than just printing them to stderr * Improved `Color` support: - fixed `ColorScheme` values - explicitly named `X11` colors - conversion to/from values from the [colour] library [colour]: http://www.haskell.org/haskellwiki/Colour * Removed `OrientationGraph`; problems with distinguishing it when parsing from node-based `Orientation` values; its functionality is duplicated by `Rotate`. * By default, the generated Dot code is now no longer indented; you can now use the `prettyPrint` functions in `Data.GraphViz` to produce readable Dot code. * Added a testsuite; this is buildable by building with `--flags-test`. Numerous printing and parsing bugs were picked up with this. Changes in 2999.6.0.0 --------------------- * Remove some `Shape` aliases and change capitalisation of others. * Properly parse and print IDs of clusters. * Allow `NodeCluster` values to have node types different from the `LNode` they come from. Changes in 2999.5.1.1 --------------------- * When used as labels, etc., the Dot keywords `node`, `edge`, `graph`, `digraph`, `subgraph`, and `strict` need to be quoted. **Spotted by Kathleen Fisher.** Changes in 2999.5.1.0 --------------------- * Potentially fixed the `graphvizWithHandle` bug; correct approach **spotted by Nikolas Mayr**. * Fixed up `Parsing` of various `Attribute` sub-values, especially `Point` and `Spline` (and hence `Pos`, which uses them). * Pre-process out comments and join together multi-line strings before parsing. * Properly parse `Doubles` like `".2"`. Changes in 2999.5.0.0 --------------------- A major re-write occured; these are the highlights: * Re-write parsing and printing of Dot code using the new `ParseDot` and `PrintDot` classes. This should finally fix all quoting issues, as well as leaving `Show` as the code representation for hacking purposes. As part of this, the `Data.GraphViz.ParserCombinators` module has been moved to `Data.GraphViz.Types.Parsing`. * Re-write the various `Dot*` datatypes in `Data.GraphViz.Types`. Sub-graphs/clusters are now their own entity rather than being part of `DotNode` and the Node ID type is now a type parameter rather than being just `Int`. Sub-graphs/clusters can now also be parsed. * The various conversion functions in `Data.GraphViz` now come in two flavours: the unprimed versions take in a `Bool` indicating if the graph is directed or not; the primed versions attempt to automatically detect this. * Add cluster support for the graph augmentation functions, **as requested by Nikolas Mayr**. * Allow custom arrow types as supported by GraphViz; **as requested by Han Joosten**. * Fixed a bug in HSV-style `Color` values where `Int` was used instead of `Double`; **spotted by Michael deLorimier**. * Properly resolved the situation initially spotted by Neil Brown: Matthew Sackman was following Dot terminology for an edge `a -> b` when using _head_ for `b` and _tail_ for `a` (this is presumably because the head/tail of the arrow are at those nodes). `DotEdge` now uses _from_ and _to_ avoid ambiguity; the various `Attribute` values still follow upstream usage. Changes in 2999.1.0.2 --------------------- * Fix a bug **spotted by Srihari Ramanathan** where `Color` values were double-quoted. Changes in 2999.1.0.1 --------------------- * The `Color` `Attribute` should take `[Color]`, not just a single `Color`. Changes in 2999.1.0.0 --------------------- * Stop using `Either` for composite `Attributes` and use a custom type: this avoids problems with the `Show` instance. Changes in 2999.0.0.0 --------------------- * Fixed a bug where the Show instance and read function for `DotEdge` had the from/to nodes the wrong way round. This was not immediately noticed since the `Graph` to `DotGraph` functions created them the wrong way round, so for those users who only used these this was not apparent. **Spotted by Neil Brown.** * Greatly improved `Attribute` usage: almost all attributes are now covered with allowed values. * Extend DotGraph to include whether a graph is strict or not and if it has an ID. Also move the directedGraph field. * Make `Dot` refer to the actual dot command and `DotArrow` refer to the `ArrowType` (rather than `DotCmd` and `Dot` as before). * Make the `Data.GraphViz.ParserCombinators` module available to end users again, but not re-exported by `Data.GraphViz`; it has a warning message up the top not to be used. It is there purely for documentative purposes. * Use [extensible-exceptions] so that `base-3.x` is once again supported. [extensible-exceptions]: http://hackage.haskell.org/package/extensible-exceptions * Follow the [Package Versioning Policy] rather than using dates for versions. [Package Versioning Policy]: http://www.haskell.org/haskellwiki/Package_versioning_policy Changes in 2009.5.1 ------------------- * New maintainer: Ivan Lazar Miljenovic. * Support `polyparse >= 1.1` (as opposed to `< 1.3`) * Require `base == 4.*` (i.e. `GHC 6.10.*`) due to new exception handling. * Include functions from [Graphalyze-0.5] for running GraphViz commands, etc. [Graphalyze-0.5]: http://hackage.haskell.org/package/Graphalyze-0.5 * Module re-organisation. * The `Data.GraphViz.ParserCombinators` module is no longer available to end users. * Improved Haddock documentation. Changes in 2008.9.20 -------------------- * Differentiate between undirected and directed graphs (previously only directed graphs were supported). * Clustering support was added. Older versions -------------- For versions of graphviz older than `2008.9.20`, the exact differences between versions is unknown. <!-- Local Variables: mode:markdown End: -->