--- /dev/null
+#!/usr/bin/perl
+
+$/ = ""; # Eat a paragraph at once.
+while(<STDIN>) {
+ chop;
+ s/\n/ /gm;
+ if (/^=head1 /) {
+ $name = 0;
+ } elsif ($name) {
+ if (/ - /) {
+ s/ - .*//;
+ s/,\s+/,/g;
+ s/\s+,/,/g;
+ s/^\s+//g;
+ s/\s+$//g;
+ s/\s/_/g;
+ push @words, split ',';
+ }
+ }
+ if (/^=head1 *NAME *$/) {
+ $name = 1;
+ }
+}
+
+print join("\n", @words),"\n";
+