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<article>
<h2>yacas mode</h2>
<textarea id="yacasCode">
// example yacas code
Graph(edges_IsList) <-- [
Local(v, e, f, t);
vertices := {};
ForEach (e, edges) [
If (IsList(e), e := Head(e));
{f, t} := Tail(Listify(e));
DestructiveAppend(vertices, f);
DestructiveAppend(vertices, t);
];
Graph(RemoveDuplicates(vertices), edges);
];
10 # IsGraph(Graph(vertices_IsList, edges_IsList)) <-- True;
20 # IsGraph(_x) <-- False;
Edges(Graph(vertices_IsList, edges_IsList)) <-- edges;
Vertices(Graph(vertices_IsList, edges_IsList)) <-- vertices;
AdjacencyList(g_IsGraph) <-- [
Local(l, vertices, edges, e, op, f, t);
l := Association'Create();
vertices := Vertices(g);
ForEach (v, vertices)
Association'Set(l, v, {});
edges := Edges(g);
ForEach(e, edges) [
If (IsList(e), e := Head(e));
{op, f, t} := Listify(e);
DestructiveAppend(Association'Get(l, f), t);
If (String(op) = "<->", DestructiveAppend(Association'Get(l, t), f));
];
l;
];
</textarea>
<script>
var yacasEditor = CodeMirror.fromTextArea(document.getElementById('yacasCode'), {
mode: 'text/x-yacas',
lineNumbers: true,
matchBrackets: true
});
</script>
<p><strong>MIME types defined:</strong> <code>text/x-yacas</code> (yacas).</p>
</article>