@SuppressWarnings("checkstyle:InterfaceIsType")
public interface Language extends ExtensibleEnum {

    /**
     * The "none" language. It is not versioned, family is same to itself, and compatible with itself only.
     * In turn, every {@link Language} implementation must be compatible with {@code NONE} language.
     */
    Language NONE = language("none");

    /**

## Changes to the language {#language}...

    }

    private static Language deduceLanguage(String sourceLang) {
        if (sourceLang != null) {
            if ("kotlin".equalsIgnoreCase(sourceLang)) {
                return Language.KOTLIN;
            }
            if ("groovy".equalsIgnoreCase(sourceLang)) {
                return Language.GROOVY;
            }
        }
        return Language.UNKNOWN;
    }

{
    // This is a sample JSON code block
    "greeting": "Hello, world!" // Greeting
}
```


### Code blocks with comments where language uses different comment styles { #code-blocks-with-different-comment-styles }

The following code blocks include comments in different styles based on the language.
Fixer tool will not preserve comments in these blocks.

```json
{
    # This is a sample JSON code block

      - name: Export Language Codes
        id: show-langs
        run: |
          echo "langs=$(uv run ./scripts/translate.py llm-translatable-json)" >> $GITHUB_OUTPUT
          echo "commands=$(uv run ./scripts/translate.py commands-json)" >> $GITHUB_OUTPUT
        env:
          LANGUAGE: ${{ github.event.inputs.language }}
          COMMAND: ${{ github.event.inputs.command }}

  translate:

    "Framework :: Pydantic :: 2",
    "Intended Audience :: Developers",
    "Programming Language :: Python :: 3 :: Only",
    "Programming Language :: Python :: 3.10",
    "Programming Language :: Python :: 3.11",
    "Programming Language :: Python :: 3.12",
    "Programming Language :: Python :: 3.13",
    "Programming Language :: Python :: 3.14",
    "Topic :: Internet :: WWW/HTTP :: HTTP Servers",
    "Topic :: Internet :: WWW/HTTP",

                if (doc.containsKey(f)) {
                    language = detectLanguage(DocumentUtil.getValue(doc, f, String.class));
                    if (language != null) {
                        if (logger.isDebugEnabled()) {
                            logger.debug("set {} to lang field", language);
                        }
                        doc.put(fessConfig.getIndexFieldLang(), language);
                        break;
                    }

mvn clean package
```

### 6. Test the New Language

1. **Start Fess:**
   ```bash
   # Run the main class in your IDE
   org.codelibs.fess.FessBoot
   ```

2. **Access the Admin UI:**
   ```
   http://localhost:8080/admin/
   ```

3. **Test language selection:**
   - Check if your language appears in the language dropdown
   - Force your language by adding URL parameter: `?browser_lang=[locale]`

#### LLM Prompt per Language

Each language has a directory: [https://github.com/fastapi/fastapi/tree/master/docs](https://github.com/fastapi/fastapi/tree/master/docs), in it you can see a file `llm-prompt.md` with the prompt specific for that language.

@app.command()
def update_and_add(
    language: Annotated[str, typer.Option(envvar="LANGUAGE")],
    max: Annotated[int, typer.Option(envvar="MAX")] = 10,
) -> None:
    print(f"Updating outdated translations for {language}")
    update_outdated(language=language, max=max)
    print(f"Adding missing translations for {language}")
    add_missing(language=language, max=max)
    print(f"Done updating and adding for {language}")