+ priority = $4
+ subject = $5
+
+ # Not just using $6 for body - because body might contain a character
+ # identical to FS
+ len_line = length($0)
+ len_head = length($1 FS $2 FS $3 FS $4 FS $5 FS)
+ len_body = len_line - len_head
+ body = substr($0, len_head + 1, len_body)