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#!/usr/bin/env python3
"""https://www.graphviz.org/doc/info/shapes.html#html"""
import graphviz
s = graphviz.Digraph('structs', filename='structs.gv',
node_attr={'shape': 'plaintext'})
s.node('struct1', '''<
<TABLE BORDER="0" CELLBORDER="1" CELLSPACING="0">
<TR>
<TD>left</TD>
<TD PORT="f1">middle</TD>
<TD PORT="f2">right</TD>
</TR>
</TABLE>>''')
s.node('struct2', '''<
<TABLE BORDER="0" CELLBORDER="1" CELLSPACING="0">
<TR>
<TD PORT="f0">one</TD>
<TD>two</TD>
</TR>
</TABLE>>''')
s.node('struct3', '''<
<TABLE BORDER="0" CELLBORDER="1" CELLSPACING="0" CELLPADDING="4">
<TR>
<TD ROWSPAN="3">hello<BR/>world</TD>
<TD COLSPAN="3">b</TD>
<TD ROWSPAN="3">g</TD>
<TD ROWSPAN="3">h</TD>
</TR>
<TR>
<TD>c</TD>
<TD PORT="here">d</TD>
<TD>e</TD>
</TR>
<TR>
<TD COLSPAN="3">f</TD>
</TR>
</TABLE>>''')
s.edges([('struct1:f1', 'struct2:f0'), ('struct1:f2', 'struct3:here')])
s.view()
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