/**
 * General text-parsing utilities used across validators, completions, and hover providers.
 */
/**
 * Returns all start offsets of `search` within `text`.
 * @param text - Source text to search.
 * @param search - Substring to find.
 * @returns Array of start offsets where the substring occurs.
 */
export declare function findAllOccurrences(text: string, search: string): number[];
/**
 * Counts the number of top-level arguments in a function call starting at `openParenPos`.
 * Runs on sanitized text so commas inside strings/comments don't produce false positives.
 *
 * Returns 0 for empty `()`, `commas + 1` otherwise, or -1 if no closing paren is found.
 * @param text - Sanitized source text.
 * @param openParenPos - Index of the opening parenthesis.
 * @returns Argument count, or -1 if the argument list is unclosed.
 */
export declare function countFunctionArguments(text: string, openParenPos: number): number;
export interface ArgumentSpan {
    value: string;
    start: number;
    end: number;
}
/**
 * Extracts each top-level argument's text and absolute position from a function call.
 * Returns null when the argument list is not properly closed.
 * @param text - Source text.
 * @param openParenPos - Index of the opening parenthesis.
 * @returns Array of ArgumentSpan objects, or null if the list is unclosed.
 */
export declare function extractFunctionArguments(text: string, openParenPos: number): ArgumentSpan[] | null;
/**
 * Infers the literal type of a trimmed argument string.
 * Returns null for variables, expressions, or nested calls.
 * @param arg - Trimmed argument string.
 * @returns Literal type string, or null if not a literal.
 */
export declare function inferLiteralType(arg: string): 'string' | 'number' | 'boolean' | null;
/**
 * Returns the word boundaries around a character position in a line.
 * @param line - The line text.
 * @param character - The character offset within the line.
 * @returns Start and end offsets of the word, or null if none.
 */
export declare function getWordRangeAtPosition(line: string, character: number): {
    start: number;
    end: number;
} | null;
/**
 * Walk backward from the cursor to find the enclosing function call name
 * and the current parameter index (0-based comma count).
 * @param textUpToCursor - Document text from start up to the cursor position.
 * @returns Function context object, or null if not inside a function call.
 */
export declare function findFunctionContext(textUpToCursor: string): {
    functionName: string;
    paramIndex: number;
    argValues: string[];
} | null;
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