initial commit

.gitignore

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+# Based on https://raw.githubusercontent.com/github/gitignore/main/Node.gitignore
+
+# Logs
+
+logs
+_.log
+npm-debug.log_
+yarn-debug.log*
+yarn-error.log*
+lerna-debug.log*
+.pnpm-debug.log*
+
+# Caches
+
+.cache
+
+# Diagnostic reports (https://nodejs.org/api/report.html)
+
+report.[0-9]_.[0-9]_.[0-9]_.[0-9]_.json
+
+# Runtime data
+
+pids
+_.pid
+_.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+
+lib-cov
+
+# Coverage directory used by tools like istanbul
+
+coverage
+*.lcov
+
+# nyc test coverage
+
+.nyc_output
+
+# Grunt intermediate storage (https://gruntjs.com/creating-plugins#storing-task-files)
+
+.grunt
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+# Bower dependency directory (https://bower.io/)
+
+bower_components
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+# node-waf configuration
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+.lock-wscript
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+# Compiled binary addons (https://nodejs.org/api/addons.html)
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+.rts2_cache_es/
+.rts2_cache_umd/
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+# Optional REPL history
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+.node_repl_history
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+
+*.tgz
+
+# Yarn Integrity file
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+.yarn-integrity
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+# dotenv environment variable files
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+.env
+.env.development.local
+.env.test.local
+.env.production.local
+.env.local
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+# parcel-bundler cache (https://parceljs.org/)
+
+.parcel-cache
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+.next
+out
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+.nuxt
+dist
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+# https://nextjs.org/blog/next-9-1#public-directory-support
+
+# public
+
+# vuepress build output
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+.vuepress/dist
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+# vuepress v2.x temp and cache directory
+
+.temp
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+# Docusaurus cache and generated files
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+.docusaurus
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+# Serverless directories
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+.serverless/
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+# FuseBox cache
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+.fusebox/
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+# DynamoDB Local files
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+.dynamodb/
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+# TernJS port file
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+.tern-port
+
+# Stores VSCode versions used for testing VSCode extensions
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+.vscode-test
+
+# yarn v2
+
+.yarn/cache
+.yarn/unplugged
+.yarn/build-state.yml
+.yarn/install-state.gz
+.pnp.*
+
+# IntelliJ based IDEs
+.idea
+
+# Finder (MacOS) folder config
+.DS_Store

README.md

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+# Encoding Fix Tool
+
+Prepares source files for conversion of encoding from EUC-KR to UTF-8.
+
+## Background
+
+Most files in the source were originally written using the EUC-KR encoding. This would be fine if only comments were using characters that only exist in that encoding.
+
+However, the original devs used EUC-KR also in string literals, which in turn are sent to the client or localized directly on the server and act as a lookup key.
+
+If we simply convert the whole file from EUC-KR to UTF-8, these lookups will break since not all references are server-side and we want to keep compatibility with existing systems (client, quests, etc).
+
+Therefore, we convert characters that are not valid UTF-8 characters used in string literals to their byte's string representation.
+
+We leave comments untouched in order to convert those in bulk with a `iconv` 
+
+```bash
+find . -name '*.cpp' -exec iconv -f EUC-KR -t UTF-8//TRANSLIT -o {}_u {} \; -exec mv {}_u {} \;
+```
+
+Repeat for the desired file extensions. 
+
+## Usage
+
+To install dependencies:
+
+```bash
+bun install
+```
+
+To run:
+
+```bash
+bun run index.ts
+```
+
+This project was created using `bun init` in bun v1.1.1. [Bun](https://bun.sh) is a fast all-in-one JavaScript runtime.

index.ts

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+import { Glob } from 'bun';
+
+// adjust path to the desired directory
+const glob = new Glob('../../src/**/*.cpp');
+
+for await (const fileName of glob.scan('.')) {
+  const file = Bun.file(fileName);
+  const content = await file.arrayBuffer();
+  const bytes = new Uint8Array(content);
+  const newFileContent = [];
+  let isString = false;
+  for (const byte of bytes) {
+    if (byte === 0x22) {
+      isString = !isString;
+    }
+    if (byte > 127 && isString) {
+      const stringifiedByte = `\\x${byte
+        .toString(16)
+        .padStart(2, '0')
+        .toUpperCase()}`;
+      newFileContent.push(...Buffer.from(stringifiedByte));
+    } else {
+      newFileContent.push(byte);
+    }
+  }
+  await Bun.write(file, Buffer.from(newFileContent));
+}

package.json

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+{
+  "name": "encoding-fixer",
+  "module": "index.ts",
+  "type": "module",
+  "devDependencies": {
+    "@types/bun": "latest"
+  },
+  "peerDependencies": {
+    "typescript": "^5.0.0"
+  }
+}

test.cpp

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+// this string literal should be converted
+chA->ChatPacket(CHAT_TYPE_INFO, LC_TEXT("<EFBFBD>ִ<EFBFBD> <20><>Ƽ<EFBFBD><C6BC> 8<><38> <20>̹Ƿ<CCB9>.."));
+// this line should stay untouched
+DWORD dwOppList[8]; // <20>ִ<EFBFBD> <20><>Ƽ<EFBFBD><C6BC> 8<><38> <20>̹Ƿ<CCB9>..

tsconfig.json

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+{
+  "compilerOptions": {
+    // Enable latest features
+    "lib": ["ESNext", "DOM"],
+    "target": "ESNext",
+    "module": "ESNext",
+    "moduleDetection": "force",
+    "jsx": "react-jsx",
+    "allowJs": true,
+
+    // Bundler mode
+    "moduleResolution": "bundler",
+    "allowImportingTsExtensions": true,
+    "verbatimModuleSyntax": true,
+    "noEmit": true,
+
+    // Best practices
+    "strict": true,
+    "skipLibCheck": true,
+    "noFallthroughCasesInSwitch": true,
+
+    // Some stricter flags (disabled by default)
+    "noUnusedLocals": false,
+    "noUnusedParameters": false,
+    "noPropertyAccessFromIndexSignature": false
+  }
+}