export declare const LANGUAGE_EXTENSIONS: {
    readonly typescript: readonly [".ts", ".tsx"];
    readonly javascript: readonly [".js", ".jsx", ".mjs", ".cjs"];
    readonly python: readonly [".py", ".pyi"];
    readonly go: readonly [".go"];
    readonly java: readonly [".java"];
    readonly kotlin: readonly [".kt", ".kts"];
    readonly rust: readonly [".rs"];
    readonly c: readonly [".c"];
    readonly cpp: readonly [".cpp", ".cc", ".cxx", ".h", ".hpp", ".hxx"];
    readonly csharp: readonly [".cs"];
    readonly fsharp: readonly [".fs", ".fsi", ".fsx"];
    readonly vbnet: readonly [".vb"];
    readonly ruby: readonly [".rb", ".rake", ".gemspec"];
    readonly php: readonly [".php", ".phtml"];
    readonly swift: readonly [".swift"];
    readonly objc: readonly [".m", ".mm"];
    readonly scala: readonly [".scala"];
    readonly groovy: readonly [".groovy", ".gradle"];
    readonly shell: readonly [".sh", ".bash", ".zsh", ".fish"];
    readonly powershell: readonly [".ps1"];
    readonly sql: readonly [".sql"];
    readonly r: readonly [".r"];
    readonly lua: readonly [".lua"];
    readonly perl: readonly [".pl", ".pm"];
    readonly elixir: readonly [".ex", ".exs"];
    readonly erlang: readonly [".erl", ".hrl"];
    readonly dart: readonly [".dart"];
    readonly julia: readonly [".jl"];
    readonly haskell: readonly [".hs", ".lhs"];
    readonly nim: readonly [".nim", ".nims", ".nimble"];
    readonly ocaml: readonly [".ml", ".mli"];
    readonly reasonml: readonly [".re", ".rei"];
    readonly elm: readonly [".elm"];
    readonly zig: readonly [".zig"];
    readonly solidity: readonly [".sol"];
    readonly vyper: readonly [".vy"];
    readonly rego: readonly [".rego"];
    readonly verilog: readonly [".v", ".sv", ".vh"];
    readonly vhdl: readonly [".vhd", ".vhdl"];
    readonly terraform: readonly [".tf", ".tfvars", ".hcl"];
    readonly protobuf: readonly [".proto"];
    readonly graphql: readonly [".graphql", ".gql"];
    readonly prisma: readonly [".prisma"];
    readonly thrift: readonly [".thrift"];
    readonly capnp: readonly [".capnp"];
    readonly jsonnet: readonly [".jsonnet", ".libsonnet"];
    readonly nix: readonly [".nix"];
    readonly bicep: readonly [".bicep"];
    readonly cmake: readonly [".cmake"];
    readonly arkts: readonly [".ets"];
    readonly astro: readonly [".astro"];
    readonly vue: readonly [".vue"];
    readonly svelte: readonly [".svelte"];
    readonly pug: readonly [".pug"];
    readonly freemarker: readonly [".ftl", ".ftlh", ".ftlx"];
    readonly handlebars: readonly [".hbs", ".mustache"];
    readonly jinja: readonly [".jinja2", ".j2"];
};
export type Ocr18Language = keyof typeof LANGUAGE_EXTENSIONS;
export declare const OCR_18_LANGUAGES: readonly Ocr18Language[];
/**
 * The routed language `filePath` belongs to, or `null` when it is not a routed
 * format. Three deliberate decisions, all documented rather than assumed:
 *
 * - `.mts` / `.cts` are TypeScript to the PRD, but the pinned 1.13.1 allowlist
 *   omits them and `ocr review --preview` reports them `unsupported_ext`.
 *   Routing them would report "typescript: 0 findings" for files the CLI never
 *   read, so they surface as unsupported files instead.
 * - `.h` is genuinely ambiguous between C and C++. It stays under `cpp` because
 *   that is the surface this slice inherited: at `194eccf5`, `--language cpp`
 *   matched `.h`, and moving it would silently change a single-language result
 *   (the PRD's preserved-behaviour clause). Reassigning it is a deliberate
 *   breaking change and needs its own decision, not a "fix" in passing. One file
 *   maps to one language on purpose: a double assignment would count the same
 *   comment in two `byLanguage` buckets and make the outcome shapes dishonest.
 * - `.m` is claimed by both Objective-C and MATLAB upstream and cannot be told
 *   apart by extension; it routes to Objective-C, the far more common reading.
 */
export declare function languageForPath(filePath: string): Ocr18Language | null;
export declare function isSupportedLanguage(value: string): value is Ocr18Language;
/**
 * Parse a `--languages` value: `auto`, or a comma-separated list of language
 * names / extensions (`ts,js,go` or `.ts,.js,go`). Extensions are resolved
 * through the same routing table, so a token cannot name a language the table
 * does not route.
 *
 * @throws Error with `code: 'LANGUAGE_UNSUPPORTED'` on an unknown or empty token.
 */
export declare function parseLanguageSelection(spec: string): {
    readonly auto: true;
    readonly languages: null;
} | {
    readonly auto: false;
    readonly languages: readonly Ocr18Language[];
};