1 #!/bin/rc
2 
3 sed '
4 	s/[ 	]+$//
5 	/	/!d
6 	/, /{; h; s/,.*//; p; g; s/	.*, /	/; }
7 ' $1 |
8 sed '
9 	/\(/{; h; s/\([^)]+\)//; p; g; s/[()]//g; }
10 ' |
11 sed '
12 	s/	 +/	/
13 	s/[ 	]+$//
14 	s/  +/ /g
15 '