From 31c05c5f848545fb126d342fa98244580aa0df15 Mon Sep 17 00:00:00 2001
From: lindeer <le.chang118@gmail.com>
Date: Wed, 30 Jul 2025 10:27:42 +0800
Subject: [PATCH 1/2] find config from env

---
 src/Config.cpp | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/Config.cpp b/src/Config.cpp
index 5c768c07c..839a99535 100644
--- a/src/Config.cpp
+++ b/src/Config.cpp
@@ -202,6 +202,15 @@ class ConfigInternal {
       }
     }
 
+    const char* envPath = std::getenv("OPENCC_DATA_DIR");
+    if (envPath != nullptr) {
+      auto path = std::string(envPath) + '/' + fileName;
+      ifs.open(UTF8Util::GetPlatformString(path).c_str());
+      if (ifs.is_open()) {
+        return path;
+      }
+    }
+
     throw FileNotFound(fileName);
   }
 };

From 3f1c828be072ebac9bddc8c6c455ddedf7c4e991 Mon Sep 17 00:00:00 2001
From: lindeer <le.chang118@gmail.com>
Date: Wed, 25 Feb 2026 14:40:39 +0800
Subject: [PATCH 2/2] =?UTF-8?q?=E6=96=87=E6=A1=A3=E8=AF=B4=E6=98=8E?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 README.md | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/README.md b/README.md
index 64e2d1303..538dc5fda 100644
--- a/README.md
+++ b/README.md
@@ -158,6 +158,13 @@ Document 文檔: https://byvoid.github.io/OpenCC/
 * `jp2t.json` New Japanese Kanji (Shinjitai) to Traditional Chinese Characters (Kyūjitai) 日文新字體到繁體（OpenCC 標準，舊字體）
 * `tw2t.json` Traditional Chinese (Taiwan standard) to Traditional Chinese 臺灣正體到繁體（OpenCC 標準）
 
+#### 指定配置文件
+
+通过环境变量`OPENCC_DATA_DIR`加载指定路径下的配置文件
+```sh
+OPENCC_DATA_DIR=/path/to/your/config/dir opencc --help
+```
+
 ## Build 編譯
 
 ### Build with CMake