import type { IFilterBaseOptions } from "@gooddata/sdk-backend-spi";
/**
 * Builds an RSQL filter query string from base options.
 *
 * @see https://www.gooddata.com/docs/cloud/api-and-sdk/api/conventions/
 *
 * containsic === contains + ignore case
 *
 * @internal
 */
export declare function buildFilterQuery(filter: IFilterBaseOptions): string | undefined;
/**
 * Builds a single clause for a list-based operator (in/out) if values are provided.
 * @internal
 */
export declare function buildListClause(field: string, operator: "in" | "out", values?: string[]): string | undefined;
/**
 * Builds either an equality clause (single value) or IN clause (multiple values).
 * @internal
 */
export declare function buildSingleOrListInClause(field: string, values?: string[]): string | undefined;
/**
 * Builds an equality clause if value is provided.
 * @internal
 */
export declare function buildIsClause(field: string, value?: string): string | undefined;
/**
 * Builds an "is null" clause if the value is provided.
 * @internal
 */
export declare function buildIsNullClause(field: string, value?: boolean): string | undefined;
/**
 * Builds a case-insensitive contains clause for a single string value.
 * @internal
 */
export declare function buildContainsIcClause(field: string, value?: string): string | undefined;
/**
 * Joins multiple filter clauses with semicolon separator.
 * @internal
 */
export declare function joinClauses(clauses: Array<string | undefined>): string | undefined;
/**
 * Formats values for RSQL "in" operator.
 *
 * Wrapping each value in double quotes allows values with spaces.
 * Joining by comma acts as an OR operator.
 *
 * @internal
 */
export declare function formatInValues(values: string[]): string;
/**
 * Formats value for RSQL.
 * @internal
 */
export declare function formatValue(value: string): string;
/**
 * Escapes characters (backslashes and double quotes) that would break quoted filter values.
 * @internal
 */
export declare function escapeValue(value: string): string;
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