Source:        a*b\*c
Replace str:   _\\_\z_
Pattern:       single backslash and star: "replace literal star"
In assignment: a_\_z_b\*c
Unquoted:      a_\_z_b\*c
Quoted:        a_\_\z_b\*c
Pattern:       double backslash and star: "replace backslash and everything after it"
In assignment: a*b_\_z_
Unquoted:      a*b_\_z_
Quoted:        a*b_\_\z_

Source:        a\bc
Replace str:   _\\_\z_
Pattern:       single backslash and b: "replace b"
In assignment: a\_\_z_c
Unquoted:      a\_\_z_c
Quoted:        a\_\_\z_c
Pattern:       double backslash and b: "replace backslash and b"
In assignment: a_\_z_c
Unquoted:      a_\_z_c
Quoted:        a_\_\z_c

Done: 0