From 05627b6f45f94c2aeb2e7c697f1cf61687faf4d8 Mon Sep 17 00:00:00 2001
From: Timothy Flynn <trflynn89@pm.me>
Date: Sun, 6 Apr 2025 10:16:24 -0400
Subject: [PATCH] AK: Remove unused ByteString titlecase/invert case
 conversions

---
 AK/ByteString.cpp  | 10 ----------
 AK/ByteString.h    |  2 --
 AK/StringUtils.cpp | 14 --------------
 AK/StringUtils.h   |  1 -
 4 files changed, 27 deletions(-)

diff --git a/AK/ByteString.cpp b/AK/ByteString.cpp
index 2f4d87ca32a..ef4cdb3487d 100644
--- a/AK/ByteString.cpp
+++ b/AK/ByteString.cpp
@@ -371,16 +371,6 @@ ByteString ByteString::to_snakecase() const
     return StringUtils::to_snakecase(*this);
 }
 
-ByteString ByteString::to_titlecase() const
-{
-    return StringUtils::to_titlecase(*this);
-}
-
-ByteString ByteString::invert_case() const
-{
-    return StringUtils::invert_case(*this);
-}
-
 bool ByteString::operator==(char const* cstring) const
 {
     if (!cstring)
diff --git a/AK/ByteString.h b/AK/ByteString.h
index e179dca909c..d8850c1303f 100644
--- a/AK/ByteString.h
+++ b/AK/ByteString.h
@@ -136,8 +136,6 @@ public:
     [[nodiscard]] ByteString to_lowercase() const;
     [[nodiscard]] ByteString to_uppercase() const;
     [[nodiscard]] ByteString to_snakecase() const;
-    [[nodiscard]] ByteString to_titlecase() const;
-    [[nodiscard]] ByteString invert_case() const;
 
     [[nodiscard]] bool is_whitespace() const { return StringUtils::is_whitespace(*this); }
 
diff --git a/AK/StringUtils.cpp b/AK/StringUtils.cpp
index 148531bdcfa..c10f969d133 100644
--- a/AK/StringUtils.cpp
+++ b/AK/StringUtils.cpp
@@ -504,20 +504,6 @@ ByteString to_titlecase(StringView str)
     return builder.to_byte_string();
 }
 
-ByteString invert_case(StringView str)
-{
-    StringBuilder builder(str.length());
-
-    for (auto ch : str) {
-        if (is_ascii_lower_alpha(ch))
-            builder.append(to_ascii_uppercase(ch));
-        else
-            builder.append(to_ascii_lowercase(ch));
-    }
-
-    return builder.to_byte_string();
-}
-
 // Finishes the replacing algorithm once it is known that ita least one
 // replacemnet is going to be done. Otherwise the caller may want to follow a
 // different route to construct its output.
diff --git a/AK/StringUtils.h b/AK/StringUtils.h
index 8826e321b8b..0e0a2ef54f5 100644
--- a/AK/StringUtils.h
+++ b/AK/StringUtils.h
@@ -106,7 +106,6 @@ Optional<size_t> find_any_of(StringView haystack, StringView needles, SearchDire
 
 ByteString to_snakecase(StringView);
 ByteString to_titlecase(StringView);
-ByteString invert_case(StringView);
 
 ByteString replace(StringView, StringView needle, StringView replacement, ReplaceMode);
 ErrorOr<String> replace(String const&, StringView needle, StringView replacement, ReplaceMode);