Merge pull request #2158 from jhscheer/issue2147

tr: implement complement separately from delete or squeeze (#2147)

tests/by-util/test_tr.rs

@@ -59,6 +59,53 @@ fn test_delete_complement_2() {
         .stdout_is("01234567890");
 }
 
+#[test]
+fn test_complement1() {
+    new_ucmd!()
+        .args(&["-c", "a", "X"])
+        .pipe_in("ab")
+        .run()
+        .stdout_is("aX");
+}
+
+#[test]
+fn test_complement2() {
+    new_ucmd!()
+        .args(&["-c", "0-9", "x"])
+        .pipe_in("Phone: 01234 567890")
+        .run()
+        .stdout_is("xxxxxxx01234x567890");
+}
+
+#[test]
+fn test_complement3() {
+    new_ucmd!()
+        .args(&["-c", "abcdefgh", "123"])
+        .pipe_in("the cat and the bat")
+        .run()
+        .stdout_is("3he3ca33a3d33he3ba3");
+}
+
+#[test]
+fn test_complement4() {
+    // $ echo -n '0x1y2z3' | tr -c '0-@' '*-~'
+    // 0~1~2~3
+    new_ucmd!()
+        .args(&["-c", "0-@", "*-~"])
+        .pipe_in("0x1y2z3")
+        .run()
+        .stdout_is("0~1~2~3");
+
+    // TODO: fix this
+    // $ echo '0x1y2z3' | tr -c '\0-@' '*-~'
+    // 0a1b2c3
+    // new_ucmd!()
+    //     .args(&["-c", "\\0-@", "*-~"])
+    //     .pipe_in("0x1y2z3")
+    //     .run()
+    //     .stdout_is("0a1b2c3");
+}
+
 #[test]
 fn test_squeeze() {
     new_ucmd!()