From 8a2c45f0f64803ba1f3ede5ce79e5a66730f5eca Mon Sep 17 00:00:00 2001
From: ragnarok-clanker <ragnarok-clanker>
Date: Sat, 31 Oct 2026 13:29:36 +0000
Subject: [PATCH] Decompile fn_13876 (UITagListBox::ParseTag)

Batch #8010 by secret: 0 byte-identical, 1 confirmed by peer review.

- fn_13876 UITagListBox::ParseTag: logic confirmed by peer review

Peer-reviewed-by: eAthena, pedrao
Accepted without human review: peers confirmed the logic ("same" ahead by at least 3, with 70% of the votes).
---
 Source/UI/Lists/UITagListBox.cpp | 77 ++++++++++++++++++++++++++++++++
 Source/UI/Lists/UITagListBox.h   |  3 ++
 2 files changed, 80 insertions(+)

diff --git a/Source/UI/Lists/UITagListBox.cpp b/Source/UI/Lists/UITagListBox.cpp
index 8683641a..f9af18ad 100644
--- a/Source/UI/Lists/UITagListBox.cpp
+++ b/Source/UI/Lists/UITagListBox.cpp
@@ -425,3 +425,80 @@ void UITagListBox::sub_9B9EA0(std::intptr_t argument1, std::intptr_t argument2,
 
   this->Invalidate();
 }
+
+// GLOBAL: gl_25151
+std::string infoTagOpening = "<INFO>";
+
+// GLOBAL: gl_25152
+std::string infoTagClosing = "</INFO>";
+
+namespace {
+// INLINED
+std::string ItemName(int id) {
+  ITEM_DESC description = FindItemDescription(id);
+  return description.identifiedName;
+}
+}
+
+// OFFSET: 0x009B94E0
+// FUNCTION: fn_13876
+std::pair<std::string, std::string> UITagListBox::ParseTag(std::string text, int tagIndex) {
+  std::pair<std::string, std::string> result;
+  if (text.size() == 0) {
+    return result;
+  }
+
+  if (text.find(g_textTagRegistry[tagIndex].opening) == std::string::npos) {
+    return result;
+  }
+
+  std::size_t closing = text.find(g_textTagRegistry[tagIndex].closing);
+  if (closing == std::string::npos) {
+    return result;
+  }
+
+  switch (g_textTagRegistry[tagIndex].type) {
+  case 438: {
+    const std::size_t opening = text.find(infoTagOpening, 0);
+    if (opening == std::string::npos) {
+      return result;
+    }
+    closing = text.find(infoTagClosing, 0);
+    if (closing == std::string::npos) {
+      return result;
+    }
+    std::string marker = infoTagOpening;
+    const std::size_t start = g_textTagRegistry[tagIndex].opening.size();
+    result.first += text.substr(start, opening - start);
+    result.second += text.substr(opening + marker.size(), closing - marker.size() - opening);
+    break;
+  }
+  case 464: {
+    const std::size_t opening = text.find(infoTagOpening, 0);
+    if (opening == std::string::npos) {
+      return result;
+    }
+    closing = text.find(infoTagClosing, 0);
+    if (closing == std::string::npos) {
+      return result;
+    }
+    std::string marker = infoTagOpening;
+    const std::size_t start = g_textTagRegistry[tagIndex].opening.size();
+    result.first += text.substr(start, opening - start);
+    result.second += text.substr(opening + marker.size(), closing - marker.size() - opening);
+    break;
+  }
+  case 501: {
+    result.first = text.substr(0, 1);
+    const std::size_t start = g_textTagRegistry[tagIndex].opening.size();
+    result.second = text.substr(start, closing - start);
+    std::vector<int> fields;
+    this->DecodeItemFields(result.second, fields);
+    result.first += ItemName(fields[2]);
+    result.first += text.substr(text.size() - 1, 1);
+    break;
+  }
+  }
+
+  return result;
+}
diff --git a/Source/UI/Lists/UITagListBox.h b/Source/UI/Lists/UITagListBox.h
index 0255072e..745fe43e 100644
--- a/Source/UI/Lists/UITagListBox.h
+++ b/Source/UI/Lists/UITagListBox.h
@@ -2,8 +2,10 @@
 #define RAGNAROK_SOURCE_UI_LISTS_UITAGLISTBOX_H
 
 #include "UI/Lists/UIListBox.h"
+#include "UI/TextTags.h"
 
 #include <string>
+#include <utility>
 #include <vector>
 
 struct ITEM_INFO;
@@ -32,6 +34,7 @@ public:
   void sub_9B9EA0(std::intptr_t argument1, std::intptr_t argument2, std::intptr_t argument3, std::intptr_t argument4);
   void sub_9BC0A0(std::intptr_t type, UIWindow* sender);
   std::string sub_9B8AA0(std::string text);
+  std::pair<std::string, std::string> ParseTag(std::string text, int tagIndex);
   void sub_9BB8E0(std::string text, std::vector<STagInfoV2>& tags, int width);
   int DecodeNumber(std::string text);
   void DecodeItemFields(const std::string& text, std::vector<int>& fields);