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/* Print the depth-first traversal of nodes
* as an indented list
*/
BEGIN {
int i, indent;
int seen[string];
void prInd () {
for (i = 0; i < indent; i++) printf (" ");
}
}
BEG_G {
$tvtype = TV_prepostfwd;
$tvroot = node($,ARGV[0]);
}
N {
if (seen[$.name]) indent--;
else {
prInd();
print ($.name);
seen[$.name] = 1;
indent++;
}
}