From 5edd042708926b3f7c407c36ac4f110b80cedd60 Mon Sep 17 00:00:00 2001
From: ragnarok-clanker <ragnarok-clanker>
Date: Fri, 30 Oct 2026 05:48:17 +0000
Subject: [PATCH] Decompile 2 functions in Source/UI/Text/NavigationLink.cpp,
 Source/UI/Text/NavigationLink.h, ...

Batch #4903 by youko: 0 byte-identical, 2 confirmed by peer review.

- fn_10407 NavigationLinkParser::HasLink: logic confirmed by peer review
- fn_10408 NavigationLinkParser::ExpandMessages: logic confirmed by peer review

Peer-reviewed-by: eAthena, alisonrag, Lumen
Accepted without human review: peers confirmed the logic ("same" ahead by at least 3, with 70% of the votes).
---
 Source/UI/Text/CreateLineInfo.h   | 10 +++++
 Source/UI/Text/NavigationLink.cpp | 61 +++++++++++++++++++++++++++++++
 Source/UI/Text/NavigationLink.h   |  3 ++
 3 files changed, 74 insertions(+)

diff --git a/Source/UI/Text/CreateLineInfo.h b/Source/UI/Text/CreateLineInfo.h
index f72a38746..1f1ce2dfd 100644
--- a/Source/UI/Text/CreateLineInfo.h
+++ b/Source/UI/Text/CreateLineInfo.h
@@ -8,7 +8,10 @@
 #include <utility>
 #include <vector>
 
+class FontCache;
 class UIWindow;
+struct TextLocale;
+struct tagSIZE;
 
 enum LineSegmentType {
   LINE_SEGMENT_URL = 0x1B5,
@@ -60,6 +63,13 @@ public:
   static std::string NextCharacter(std::string text);
   static std::tuple<bool, std::string, std::string> SplitLinkInfo(std::string text, int type);
   static std::vector<std::string> SplitString(std::string text, const std::string& delimiter);
+  static tagSIZE MeasureText(FontCache& fonts, const TextLocale& locale, UIWindow* window, std::string text, const LineTextStyle& style);
+  static std::string FitText(
+    FontCache& fonts, const TextLocale& locale, UIWindow* window, std::string text, const LineTextStyle& style, int width
+  );
+  static std::vector<std::string> SplitLines(
+    FontCache& fonts, const TextLocale& locale, UIWindow* window, std::string text, const LineTextStyle& style, int width
+  );
 
   /* 0004 */ UIWindow* m_parent;
   /* 0008 */ int m_width;
diff --git a/Source/UI/Text/NavigationLink.cpp b/Source/UI/Text/NavigationLink.cpp
index c6c5d6429..4360d5d7a 100644
--- a/Source/UI/Text/NavigationLink.cpp
+++ b/Source/UI/Text/NavigationLink.cpp
@@ -164,6 +164,61 @@ static const std::string g_questCloseTag = "</QUEST>";
 // GLOBAL: gl_24836
 std::vector<LineFontState> CCreateLineInfo::s_fontStackCache;
 
+// OFFSET: 0x00832500
+// FUNCTION: fn_10407
+bool NavigationLinkParser::HasLink(std::string text) {
+  return text.find(g_naviLinkTag) != std::string::npos || text.find(g_naviLinkCloseTag) != std::string::npos ||
+         text.find(g_itemLinkTag) != std::string::npos || text.find(g_itemLinkCloseTag) != std::string::npos;
+}
+
+// OFFSET: 0x00832640
+// FUNCTION: fn_10408
+std::string NavigationLinkParser::ExpandMessages(std::string text) {
+  std::string expanded;
+
+  for (;;) {
+    std::string work;
+    if (expanded.empty()) {
+      work = text;
+    } else {
+      work = expanded;
+    }
+
+    const std::size_t begin = work.find(g_messageTag);
+    if (begin == std::string::npos) {
+      return text;
+    }
+
+    work = work.substr(begin + std::strlen(g_messageTag.c_str()));
+    const std::size_t end = work.find(g_messageCloseTag);
+    if (end == std::string::npos) {
+      return text;
+    }
+
+    work = work.substr(0, end);
+    int messageId;
+    if (work.find("MSI_") != std::string::npos) {
+      messageId = FindMessageId(work.c_str());
+    } else {
+      messageId = std::atoi(work.c_str());
+    }
+
+    const std::string message = FormatMessageArguments(work, messageId);
+    work.clear();
+    work = expanded.empty() ? text : expanded;
+    const std::string head = work.substr(0, begin);
+    const std::string tail = work.substr(work.find(g_messageCloseTag) + std::strlen(g_messageCloseTag.c_str()));
+    expanded.clear();
+    expanded += head;
+    expanded += message;
+    expanded += tail;
+
+    if (expanded.find(g_messageTag) == std::string::npos) {
+      return expanded;
+    }
+  }
+}
+
 // OFFSET: 0x00833160
 // FUNCTION: fn_10409
 int DecodeNavigationNumber(std::string value) {
@@ -527,6 +582,10 @@ std::size_t CCreateLineInfo::FindTag(std::string text, std::string keyword, bool
   return text.find(keyword, 0);
 }
 
+// OFFSET: 0x00839420
+
+// OFFSET: 0x00839860
+
 // OFFSET: 0x00839D60
 // FUNCTION: fn_10460
 std::pair<std::string, std::string> CCreateLineInfo::GetLinkTags(int type) {
@@ -552,6 +611,8 @@ std::pair<std::string, std::string> CCreateLineInfo::GetLinkTags(int type) {
   }
 }
 
+// OFFSET: 0x00839FA0
+
 // OFFSET: 0x0083A180
 // FUNCTION: fn_10462
 void CCreateLineInfo::ApplyFont(std::string tag) {
diff --git a/Source/UI/Text/NavigationLink.h b/Source/UI/Text/NavigationLink.h
index f09c680c9..9b21f0a38 100644
--- a/Source/UI/Text/NavigationLink.h
+++ b/Source/UI/Text/NavigationLink.h
@@ -7,6 +7,9 @@ struct NavigationLinkParser {
   NavigationLinkParser();
   ~NavigationLinkParser();
 
+  bool HasLink(std::string text);
+  std::string ExpandMessages(std::string text);
+
   /* 0000 */ bool m_ready;
 };