one-true-awk/testdir/t.gsub4

*23f24377SWarner Loshlength($1) == 0 { next }
*23f24377SWarner Losh
*23f24377SWarner Losh{gsub("[" $1 "]","(&)"); print}
*23f24377SWarner Losh{gsub("[" $1 "]","(\\&)"); print}