import type { Node } from 'web-tree-sitter';
export declare function findUnterminatedBacktick(command: string): string | null;
/**
 * Locate a top-level structural syntax error in a parsed AST.
 *
 * Tree-sitter often recovers from minor anomalies (e.g. `for x in;`) by
 * producing a valid statement with an internal ERROR token. Bash accepts
 * those, so we only flag errors that surface as direct children of
 * `program` AND contain a bash keyword, a bracket / quote, a statement
 * separator, or a recovered named subtree (`isStructuralError`). A case
 * terminator outside a case item is flagged even when the tree carries no
 * ERROR at all, because the grammar accepts `;;` as a plain separator.
 *
 * Returns the offending region's text, or `null` if the AST is clean.
 */
export declare function findSyntaxError(node: Node): string | null;
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