From 32aa6f116acc6e3e20a1ec76cef45b29f7005ad7 Mon Sep 17 00:00:00 2001
From: Yuqian Yang <crupest@crupest.life>
Date: Fri, 17 Oct 2025 12:06:14 +0800
Subject: Remove String stage 1.

---
 src/base/StringUtil.cpp | 38 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)

(limited to 'src/base/StringUtil.cpp')

diff --git a/src/base/StringUtil.cpp b/src/base/StringUtil.cpp
index 42aea114..4e622dab 100644
--- a/src/base/StringUtil.cpp
+++ b/src/base/StringUtil.cpp
@@ -317,4 +317,42 @@ Utf8CodePointIterator CreateUtf8Iterator(const std::vector<std::byte>& buffer) {
   return CreateUtf8Iterator(buffer.data(), buffer.size());
 }
 
+CodePoint Utf8NextCodePoint(std::string_view str, Index current,
+                            Index* next_position) {
+  NotImplemented();
+}
+
+CodePoint Utf8PreviousCodePoint(std::string_view str, Index current,
+                                Index* next_position) {
+  NotImplemented();
+}
+
+// Return position after the character making predicate returns true or 0 if no
+// character doing so.
+Index Utf8BackwardUntil(std::string_view str, Index position,
+                        const std::function<bool(CodePoint)>& predicate) {
+  NotImplemented();
+}
+
+// Return position before the character making predicate returns true or
+// str.size() if no character doing so.
+Index Utf8ForwardUntil(std::string_view str, Index position,
+                       const std::function<bool(CodePoint)>& predicate) {
+  NotImplemented();
+}
+
+bool Utf8IsValidInsertPosition(std::string_view str, Index position) {
+  NotImplemented();
+}
+
+Index Utf8PreviousWord(std::string_view str, Index position,
+                       bool* is_space) {
+  NotImplemented();
+}
+
+Index Utf8NextWord(std::string_view str, Index position,
+                   bool* is_space) {
+  NotImplemented();
+}
+
 }  // namespace cru
-- 
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