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@ -22,6 +22,7 @@ |
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(require (prefix-in g: graph)) |
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(provide graph? |
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directed-graph |
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has-vertex? |
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has-edge? |
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graphviz) |
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@ -29,6 +30,8 @@ |
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(define (directed-graph es [ws #f]) |
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(graph (g:directed-graph es ws))) |
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(define (has-vertex? g v) |
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(g:has-vertex? (graph-g g) v)) |
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(define (has-edge? g u v) |
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(g:has-edge? (graph-g g) u v)) |
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(define (graphviz g #:output [output #f] #:colors [colors #f]) |
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@ -37,6 +40,7 @@ |
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(require/typed 'graph-wrapper |
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[#:opaque Graph graph?] |
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[directed-graph (->* ((Listof (List Any Any))) ((Listof Any)) Graph)] |
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[has-vertex? (-> Graph Any Boolean)] |
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[has-edge? (-> Graph Any Any Boolean)] |
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[graphviz (->* (Graph) |
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(#:output Output-Port |
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@ -45,4 +49,5 @@ |
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(define g (directed-graph '((a b) (b c)))) |
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(has-edge? g 'a 'c) |
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(has-vertex? g 'a) |
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(graphviz g) |