1Source: a*b\*c 2Replace str: _\\_\z_ 3Pattern: single backslash and star: "replace literal star" 4Unquoted: a_\_z_b\*c 5Unquoted =: a_\_z_b\*c 6Quoted: a_\_\z_b\*c 7Quoted =: a_\_\z_b\*c 8Pattern: double backslash and star: "replace backslash and everything after it" 9Unquoted: a*b_\_z_ 10Unquoted =: a*b_\_z_ 11Quoted: a*b_\_\z_ 12Quoted =: a*b_\_\z_ 13 14Source: a\bc 15Replace str: _\\_\z_ 16Pattern: single backslash and b: "replace b" 17Unquoted: a\_\_z_c 18Unquoted =: a\_\_z_c 19Quoted: a\_\_\z_c 20Quoted =: a\_\_\z_c 21Pattern: double backslash and b: "replace backslash and b" 22Unquoted: a_\_z_c 23Unquoted =: a_\_z_c 24Quoted: a_\_\z_c 25Quoted =: a_\_\z_c 26 27Source: a\bc 28Replace str: _\\_\z_ (as variable $s) 29Pattern: single backslash and b: "replace b" 30Unquoted: a\_\\_\z_c 31Unquoted =: a\_\\_\z_c 32Quoted: a\_\\_\z_c 33Quoted =: a\_\\_\z_c 34Pattern: double backslash and b: "replace backslash and b" 35Unquoted: a_\\_\z_c 36Unquoted =: a_\\_\z_c 37Quoted: a_\\_\z_c 38Quoted =: a_\\_\z_c 39 40Done: 0 41