/**
 * Symbol extraction via a deterministic heuristic line-based parser, plus LSP
 * document-symbol integration. The heuristic parser provides lexical symbol
 * boundaries for common languages without requiring a language server; when an
 * LSP server is present, its document symbols are the preferred evidence source.
 */
export interface ExtractedSymbol {
    name: string;
    kind: string;
    languageId: string;
    startLine: number;
    startCharacter: number;
    endLine: number;
    endCharacter: number;
    qualifiedName?: string;
    containerSymbolId?: string;
    signatureHash?: string;
}
export interface LspSymbolInput {
    name: string;
    kind: string;
    startLine: number;
    startCharacter: number;
    endLine: number;
    endCharacter: number;
    containerName?: string;
    languageId: string;
}
/**
 * Heuristic symbol extraction for a supported language. Returns symbols ordered
 * by start line. Non-authoritative; used to bound chunking and to provide
 * parser-only symbols when no LSP server is present.
 */
export declare function extractSymbolsHeuristic(languageId: string, content: string): ExtractedSymbol[];
/** Map string symbols for markdown (headers) and structured config. */
export declare function markdownSections(content: string): ExtractedSymbol[];
/** Merge heuristic symbols with LSP symbols, preferring LSP when present. */
export declare function mergeSymbols(heuristic: ExtractedSymbol[], lsp: LspSymbolInput[] | undefined): ExtractedSymbol[];
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