| #pattern framesize, memory | |
| /abcd/ | |
| abcd\=memory | |
| abcd\=find_limits | |
| /(((((((((((((((((((((((((((((( (^abc|xyz){1,20}$ ))))))))))))))))))))))))))))))/x | |
| abcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcX\=memory | |
| abcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcabcX\=find_limits | |
| /ab(cd)/ | |
| abcd\=memory | |
| abcd\=memory,ovector=0 |