--- title: language | CodeWeaver Docs description: API reference for codeweaver.core.language url: "https://docs.knitli.com/api/core/language" type: static generatedAt: "2026-04-17T17:21:08.038Z" --- # language [Open in ChatGPT](https://chatgpt.com/?q=Read%20https%3A%2F%2Fdocs.knitli.com%2Fcodeweaver%2Fapi%2Fcore%2Flanguage%2F.%20I%20want%20to%20ask%20questions%20about%20it.)[Open in Claude](https://claude.ai/new?q=Read%20https%3A%2F%2Fdocs.knitli.com%2Fcodeweaver%2Fapi%2Fcore%2Flanguage%2F.%20I%20want%20to%20ask%20questions%20about%20it.)[View in Markdown](/codeweaver/api/core/language.md) [Share on LinkedIn](https://www.linkedin.com/sharing/share-offsite/?url=https%3A%2F%2Fdocs.knitli.com%2Fcodeweaver%2Fapi%2Fcore%2Flanguage%2F)[Share on X](https://x.com/intent/tweet?url=https%3A%2F%2Fdocs.knitli.com%2Fcodeweaver%2Fapi%2Fcore%2Flanguage%2F&text=language)[Share on Threads](https://threads.net/intent/post?url=https%3A%2F%2Fdocs.knitli.com%2Fcodeweaver%2Fapi%2Fcore%2Flanguage%2F&text=language)[Share on Bluesky](https://bsky.app/intent/compose?text=language%20https%3A%2F%2Fdocs.knitli.com%2Fcodeweaver%2Fapi%2Fcore%2Flanguage%2F)[Share on Facebook](https://www.facebook.com/sharer/sharer.php?u=https%3A%2F%2Fdocs.knitli.com%2Fcodeweaver%2Fapi%2Fcore%2Flanguage%2F)[Share on Reddit](https://reddit.com/submit?url=https%3A%2F%2Fdocs.knitli.com%2Fcodeweaver%2Fapi%2Fcore%2Flanguage%2F&title=language)[Share on Hacker News](https://news.ycombinator.com/submitlink?u=https%3A%2F%2Fdocs.knitli.com%2Fcodeweaver%2Fapi%2Fcore%2Flanguage%2F&t=language)[Share on Email](mailto:?subject=language&body=https%3A%2F%2Fdocs.knitli.com%2Fcodeweaver%2Fapi%2Fcore%2Flanguage%2F)[Share on WhatsApp](https://wa.me/?text=language%20https%3A%2F%2Fdocs.knitli.com%2Fcodeweaver%2Fapi%2Fcore%2Flanguage%2F)[Share on Telegram](https://t.me/share/url?url=https%3A%2F%2Fdocs.knitli.com%2Fcodeweaver%2Fapi%2Fcore%2Flanguage%2F&text=language) # `codeweaver.core.language` [Section titled “codeweaver.core.language”](#codeweavercorelanguage) Classes and functions for handling languages and their configuration files in the CodeWeaver project. ## Class: `ConfigLanguage` [Section titled “Class: ConfigLanguage”](#class-configlanguage) Enum representing common configuration languages. ### Method: `all_extensions` [Section titled “Method: all_extensions”](#method-all_extensions) ** ``` all_extensions() ``` Returns all file extensions for all configuration languages. ### Method: `from_extension` [Section titled “Method: from_extension”](#method-from_extension) ** ``` from_extension() ``` Returns the ConfigLanguage associated with the given file extension. ## Class: `LanguageConfigFile` [Section titled “Class: LanguageConfigFile”](#class-languageconfigfile) Represents a language configuration file with its name, path, and language type. ### Method: `exists` [Section titled “Method: exists”](#method-exists) ** ``` exists() ``` Checks if the configuration file exists at the specified path. ## Class: `RepoConventions` [Section titled “Class: RepoConventions”](#class-repoconventions) A TypedDict representing common repository conventions for a language. ## Class: `SemanticSearchLanguage` [Section titled “Class: SemanticSearchLanguage”](#class-semanticsearchlanguage) Enum representing supported languages for semantic (AST) search. Note: This is the list of built-in languages supported by ast-grep. Ast-grep supports dynamic languages using pre-compiled tree-sitter grammars. We haven’t added support for those yet. ### Method: `all_config_paths` [Section titled “Method: all_config_paths”](#method-all_config_paths) ** ``` all_config_paths() ``` Returns all configuration file paths for all languages. ### Method: `all_extensions` [Section titled “Method: all_extensions”](#method-all_extensions-1) ** ``` all_extensions() ``` Returns all file extensions for all languages. ### Method: `code_extensions` [Section titled “Method: code_extensions”](#method-code_extensions) ** ``` code_extensions() ``` Returns all file extensions associated with programming languages (excluding configuration languages). ### Method: `config_language_exts` [Section titled “Method: config_language_exts”](#method-config_language_exts) ** ``` config_language_exts() ``` Returns all file extensions associated with the configuration languages. ### Method: `config_languages` [Section titled “Method: config_languages”](#method-config_languages) ** ``` config_languages() ``` Returns all SemanticSearchLanguages that are also configuration languages. ### Method: `config_pairs` [Section titled “Method: config_pairs”](#method-config_pairs) ** ``` config_pairs() ``` Returns a tuple mapping of all config file paths to their corresponding LanguageConfigFile. ### Method: `ext_pairs` [Section titled “Method: ext_pairs”](#method-ext_pairs) ** ``` ext_pairs() ``` Returns a frozenset of tuples containing file extensions and their corresponding SemanticSearchLanguage. ### Method: `extension_map` [Section titled “Method: extension_map”](#method-extension_map) ** ``` extension_map() ``` Returns a mapping of file extensions to their corresponding SemanticSearchLanguage. This is used to quickly look up the language based on file extension. ### Method: `filename_pairs` [Section titled “Method: filename_pairs”](#method-filename_pairs) ** ``` filename_pairs() ``` Returns a frozenset of tuples containing file names and their corresponding SemanticSearchLanguage. ### Method: `from_extension` [Section titled “Method: from_extension”](#method-from_extension-1) ** ``` from_extension() ``` Returns the SemanticSearchLanguage associated with the given file extension. ### Method: `injection_languages` [Section titled “Method: injection_languages”](#method-injection_languages) ** ``` injection_languages() ``` Returns supported languages that commonly contain embedded code snippets from other languages. ### Method: `lang_from_ext` [Section titled “Method: lang_from_ext”](#method-lang_from_ext) ** ``` lang_from_ext() ``` Returns the SemanticSearchLanguage for a given file extension. Args: ext: The file extension to look up. Returns: The corresponding SemanticSearchLanguage, or None if not found. ## Function: `find_config_paths` [Section titled “Function: find_config_paths”](#function-find_config_paths) ** ``` find_config_paths() ``` Finds all configuration files in the project root directory. Returns: A tuple of Path objects representing the configuration files, or None if no config files are found. ## Function: `get_ext_lang_pairs_generator` [Section titled “Function: get_ext_lang_pairs_generator”](#function-get_ext_lang_pairs_generator) ** ``` get_ext_lang_pairs_generator() ``` Helper to lazily get ext lang pairs. ## Function: `has_semantic_extension` [Section titled “Function: has_semantic_extension”](#function-has_semantic_extension) ** ``` has_semantic_extension() ``` Check if the given extension is a semantic search language. ## Function: `is_semantic_config_ext` [Section titled “Function: is_semantic_config_ext”](#function-is_semantic_config_ext) ** ``` is_semantic_config_ext() ``` Check if the given extension is a semantic config file. ## Function: `language_from_config_file` [Section titled “Function: language_from_config_file”](#function-language_from_config_file) ** ``` language_from_config_file() ``` Returns the SemanticSearchLanguage for a given configuration file path. Args: config_file: The path to the configuration file. Returns: The corresponding SemanticSearchLanguage, or None if not found. ## Function: `language_from_path` [Section titled “Function: language_from_path”](#function-language_from_path) ** ``` language_from_path() ``` Returns the SemanticSearchLanguage for a given file path based on its extension. Args: file_path: The path to the file. ## Function: `languages_present_from_configs` [Section titled “Function: languages_present_from_configs”](#function-languages_present_from_configs) ** ``` languages_present_from_configs() ``` Returns a tuple of SemanticSearchLanguage for all languages present in the configuration files. Returns: A tuple of SemanticSearchLanguage objects.