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/* Generate copy of topology of input graph
* Replace names with numbers
*/
BEGIN {
int id = 0;
char* names[char*];
char* mapn (char* inname)
{
char* s = names[inname];
if (s == "") {
s = id++;
names[inname] = s;
}
return s;
}
}
BEG_G {
graph_t g = graph ($.name, "U");
}
N { node (g, mapn($.name)); }
E { edge (node (g, mapn($.tail.name)), node (g, mapn($.head.name)), ""); }
END_G {
write (g);
}