LibRegex: Allow '-' as the last element of a charclass

Fixes #4189.
Author: https://github.com/alimpfard Commit: 491e4a8a3b Pull-request: https://github.com/SerenityOS/serenity/pull/4194 Issue: https://github.com/SerenityOS/serenity/issues/4186 Issue: https://github.com/SerenityOS/serenity/issues/4189
2025-08-08 09:09:43 +00:00 · 2020-11-28 12:28:36 +03:30 · 2020-11-28 12:28:36 +03:30 · 491e4a8a3b · 2024-07-19 01:13:39 +09:00
commit 491e4a8a3b
parent e2fa1b40c4
2 changed files with 12 additions and 0 deletions
--- a/Libraries/LibRegex/Tests/Regex.cpp
+++ b/Libraries/LibRegex/Tests/Regex.cpp
@ -485,6 +485,10 @@ TEST_CASE(ECMA262_parse)
        "^hel(?<LO>l\\w).$",
        "^[-a-zA-Z\\w\\s]+$",
        "\\bhello\\B",
+        "^[\\w+/_-]+[=]{0,2}$",                        // #4189
+        "^(?:[^<]*(<[\\w\\W]+>)[^>]*$|#([\\w\\-]*)$)", // #4189
+        "\\/",                                         // #4189
+        "\\x",                                         // Even invalid escapes are allowed if ~unicode.
    };

    for (auto& pattern : patterns) {