| // Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| /// @assertion String replaceFirstMapped(Pattern from, |
| /// String replace(Match match), [int startIndex = 0]) |
| /// Replace the first occurence of from in this string. |
| /// |
| /// Returns a new string, which is this string except that the first match of |
| /// pattern, starting from startIndex, is replaced by the result of calling |
| /// replace with the match object. |
| /// @description Checks that this method replaces the first matched substring |
| /// only |
| /// @author sgrekhov@unipro.ru |
| |
| import "../../../Utils/expect.dart"; |
| |
| main() { |
| Expect.equals("0231", "1231".replaceFirstMapped("1", (m) => "0")); |
| Expect.equals("03112", "123112".replaceFirstMapped("12", (m) => "0")); |
| Expect.equals("10231", "123231".replaceFirstMapped("23", (m) => "0")); |
| Expect.equals("12031\w", "12\w31\w".replaceFirstMapped("\w", (m) => "0")); |
| Expect.equals("120\\w31", r"12\w\w31".replaceFirstMapped(r"\w", (m) => "0")); |
| Expect.equals("0[:alpha:]1231", "[:alpha:][:alpha:]1231".replaceFirstMapped( |
| "[:alpha:]", (m) => "0")); |
| } |