-[0-9a-f]* DF \*UND\* [0-9a-f]* (0x[0-9a-f][0-9a-f] )?show_foo
-[0-9a-f]* DF \*UND\* [0-9a-f]* VERS_2.0 (0x[0-9a-f][0-9a-f] )?show_foo
-[0-9a-f]* DF \*UND\* [0-9a-f]* VERS_1.2 (0x[0-9a-f][0-9a-f] )?show_foo
-[0-9a-f]* DF \*UND\* [0-9a-f]* VERS_1.1 (0x[0-9a-f][0-9a-f] )?show_foo
+[0-9a-f]+ +DF \*UND\* [0-9a-f]+ +(0x[0-9a-f]+ )?_?show_foo
+[0-9a-f]+ +DF \*UND\* [0-9a-f]+ +VERS_2.0 +(0x[0-9a-f]+ )?_?show_foo
+[0-9a-f]+ +DF \*UND\* [0-9a-f]+ +VERS_1.2 +(0x[0-9a-f]+ )?_?show_foo
+[0-9a-f]+ +DF \*UND\* [0-9a-f]+ +VERS_1.1 +(0x[0-9a-f]+ )?_?show_foo