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

	}
	languages2 := []Language{}
	languages3 := []Language{
		{Code: "language-many2many-append-3-1", Name: "language-many2many-append-3-1"},
		{Code: "language-many2many-append-3-2", Name: "language-many2many-append-3-2"},
	}
	DB.Create(&languages1)
	DB.Create(&languages3)

	DB.Model(&users).Association("Languages").Append(&languages1, &languages2, &languages3)

	AssertAssociationCount(t, users, "Languages", 9, "After Append")

    }

    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;
    }

     * @param language language of the files contained in the directory to add
     * @param directory the directory to add if not already present in the source
     *
     * @see #getEnabledSourceRoots(Project, ProjectScope, Language)
     */
    void addSourceRoot(
            @Nonnull Project project, @Nonnull ProjectScope scope, @Nonnull Language language, @Nonnull Path directory);

    /**

 * to the specific provider interface being implemented.
 * <p>
 * Example implementation for a custom language provider:
 * <pre>
 * public class CustomLanguageProvider implements LanguageProvider {
 *     public Collection&lt;Language&gt; provides() {
 *         return Arrays.asList(
 *             language("kotlin"),
 *             language("scala")
 *         );
 *     }
 * }
 * </pre>
 *

```toml
// This is a sample TOML code block
title = "TOML Example"  // Title of the document
```


### Code blocks with comments with unsupported languages or without language specified { #code-blocks-with-unsupported-languages }

The following code blocks use unsupported languages for comment preservation.
Fixer tool will not preserve comments in these blocks.

```javascript
// This is a sample JavaScript code block

    }

    @Override
    public boolean isIncludesDependencies() {
        return includesDependencies;
    }

    public void setLanguage(String language) {
        this.language = language;
    }

    @Override
    public String getLanguage() {
        return language;
    }

    @Deprecated
    public void setAddedToClasspath(boolean addedToClasspath) {
        this.addedToClasspath = addedToClasspath;
    }

# Adding a New Language to Fess

This guide explains how to add internationalization (i18n) support for a new language in Fess.

## Overview

Fess uses a two-tier language support system:

1. **Full UI Translation** (13 languages): Complete user interface translation with label and message files
2. **Search/Analysis Support** (40+ languages): Language-specific text analysis for search indexing

      - 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:

                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;
                    }