printing options, for separators.

default separators

A parser & printer class for a graphviz graph and components of its dot language

dotParse and then dotPrint:

• pretty printing error on failure.
• This is not an exact parser/printer, so the test re-parses the dotPrint, which should be idempotent

run a dotParse erroring on leftovers, Fail or Err

Representation of a full graphviz graph, as per the dot language specification

Directed graph of size 1.

>>> BS.putStr $ dotPrint defaultDotConfig defaultGraph <> "\n"
digraph {
    node [height=0.5;shape=circle]
    graph [overlap=false;size="1!";splines=spline]
    edge [arrowsize=0.5]
    rankdir="TB"
    }

attributes lens

global attributes lens

run a dot string through graphviz, collecting the augmented dot string output

run a dot string through graphviz, supplying arguments and collecting stdout

Augment a Graph via the graphviz process

Augment a Graph via the graphviz process

MergeEdges (strict)

Default Strict is NoMergeEdges

Directed (digraph | graph)

Default Directed is Directed

Identifier as per the dot language specifications.

>>> runDotParser "0" :: ID
IDInt 0

>>> runDotParser "-.123" :: ID
IDDouble (-0.123)

>>> runParser dotParse "apple_1'" :: Result Error ID
OK (ID "apple_1") "'"

>>> :set -XQuasiQuotes
>>> runParser dotParse "\"hello\"" :: Result Error ID
OK (IDQuoted "hello") ""

>>> runDotParser "<The <font color='red'><b>foo</b></font>,<br/> the <font point-size='20'>bar</font> and<br/> the <i>baz</i>>" :: ID
IDHtml "<The <font color='red'><b>foo</b></font>,<br/> the <font point-size='20'>bar</font> and<br/> the <i>baz</i>>"

>>> runDotParser "shape=diamond" :: (ID,ID)
(ID "shape",ID "diamond")

>>> runDotParser "fontname=\"Arial\"" :: (ID,ID)
(ID "fontname",IDQuoted "Arial")

>>> runDotParser "[shape=diamond; color=blue] [label=label]" :: Map.Map ID ID
fromList [(ID "color",ID "blue"),(ID "label",ID "label"),(ID "shape",ID "diamond")]

ID as the equivalent plain String

note that the dot language identifier equivalence law is:

x == y if label x == label y

Compass instructions which are optionally associated with an identifier

Port instructions which are optionally associated with an identifier

Category of attribute

Top-level attribute statement

>>> runDotParser "graph [overlap=false, splines=spline, size=\"1!\"];" :: Statement
StatementAttribute (AttributeStatement {attributeType = GraphType, attributes = fromList [(ID "overlap",ID "false"),(ID "size",IDQuoted "1!"),(ID "splines",ID "spline")]})

Node statement

>>> runDotParser "A [shape=diamond; color=blue]" :: Statement
StatementNode (NodeStatement {nodeID = ID "A", port = Nothing, nodeAttrs = fromList [(ID "color",ID "blue"),(ID "shape",ID "diamond")]})

An edge can be specified in as a NodeID or as a SubGraph

An edgeop is -> in directed graphs and -- in undirected graphs.

generate an EdgeOp given the type of graph.

Edge statement

>>> runDotParser "A -> B [style=dashed, color=grey]" :: Statement
StatementEdge (EdgeStatement {edgeOp = EdgeDirected, leftEdge = EdgeID (ID "A") Nothing, rightEdges = EdgeID (ID "B") Nothing :| [], edgeAttrs = fromList [(ID "color",ID "grey"),(ID "style",ID "dashed")]})

The edge ID or subgraph ID (if any)

list of edges in a given EdgeStatement, including anonymous SugGraphs

edge IDs

A dot statement as per the dot language specification.

add a graphviz statement to a Graph

add a list of graphviz statements to a Graph

A subgraph statement.

Note: each subgraph must have a unique name

>>> runDotParser "subgraph A {A, B, C}" :: Statement
StatementSubGraph (SubGraphStatement {subgraphID = Just (ID "A"), subgraphStatements = [StatementNode (NodeStatement {nodeID = ID "A", port = Nothing, nodeAttrs = fromList []}),StatementNode (NodeStatement {nodeID = ID "B", port = Nothing, nodeAttrs = fromList []}),StatementNode (NodeStatement {nodeID = ID "C", port = Nothing, nodeAttrs = fromList []})]})

convert a Graph processed via the graphviz commands to a ChartOptions

convert a Graph processed via the graphviz commands to a ChartOptions using the default ChartConfig.

Various configutaion parameters for the chart-svg Chart

default parameters

create Statements from a (no edge label) algebraic graph

Convert an algebraic graph to a dotparse graph, starting with the defaultGraph.

Convert an algebraic graph to a dotparse graph.