ADD: RemoveLineBreaks function

regex/rstring/string.go

@@ -48,3 +48,12 @@ func ContainsSpecialChars(s string) bool {
 
 return !isStringAlphabetic(s)
 }
+
+// RemoveLineBreaks removes all line breaks from a string using a regex.
+// As per https://docs.oracle.com/javase/8/docs/api/java/util/regex/Pattern.html#lineending,
+// Any Unicode linebreak sequence, is equivalent to \u000D\u000A|[\u000A\u000B\u000C\u000D\u0085\u2028\u2029] .
+func RemoveLineBreaks(s string) string {
+re := regexp.MustCompile(`\x{000D}\x{000A}|[\x{000A}\x{000B}\x{000C}\x{000D}\x{0085}\x{2028}\x{2029}]`)
+
+return re.ReplaceAllString(s, ``)
+}

regex/rstring/string_test.go

@@ -102,3 +102,29 @@ func TestContainsSpecialChars(t *testing.T) {
 })
 }
 }
+
+func TestRemoveLineBreaks(t *testing.T) {
+type test struct {
+name string
+input string
+output string
+}
+
+tests := []test{
+{name: "MultipleLineBreaks", input: "One\r,\r\ntwo\u0085 three\u2028!\u2029'", output: "One,two three!'"},
+{name: "WindowsLineBreak", input: "Win\r\n", output: "Win"},
+{name: "MacLineBreak", input: "Mac\r", output: "Mac"},
+}
+
+for _, tc := range tests {
+tc := tc
+t.Run(tc.name, func(t *testing.T) {
+result := rstring.RemoveLineBreaks(tc.input)
+diff := reflect.DeepEqual(result, tc.output)
+if !diff {
+t.Errorf("RemoveLineBreaks(%s) Failed: expected %s, actual %s",
+tc.input, tc.output, result)
+}
+})
+}
+}