import type { ExtendedIconifyIcon, IconifyDimenisons, IconifyIcon, IconifyJSON, IconifyOptional, IconifyTransformations } from '@iconify/types';
export type FullIconifyIcon = Required<IconifyIcon>;
/**
 * SVG viewBox: x, y, width, height
 */
export type SVGViewBox = [x: number, y: number, width: number, height: number];
/**
 * Get viewBox from string
 */
export declare function getSVGViewBox(value: string): SVGViewBox | undefined;
/**
 * Extract definitions from SVG
 *
 * Can be used with other tags, but name kept for backwards compatibility.
 * Should be used only with tags that cannot be nested, such as masks, clip paths, etc.
 */
interface SplitSVGDefsResult {
    defs: string;
    content: string;
}
export declare function splitSVGDefs(content: string, tag?: string): SplitSVGDefsResult;
/**
 * Merge defs and content
 */
export declare function mergeDefsAndContent(defs: string, content: string): string;
/**
 * Wrap SVG content, without wrapping definitions
 */
export declare function wrapSVGContent(body: string, start: string, end: string): string;
export type PartialExtendedIconifyIcon = Partial<ExtendedIconifyIcon>;
type IconifyIconExtraProps = Omit<ExtendedIconifyIcon, keyof IconifyIcon>;
export type FullExtendedIconifyIcon = FullIconifyIcon & IconifyIconExtraProps;
/**
 * Calculate second dimension when only 1 dimension is set
 */
export declare function calculateSize(size: string, ratio: number, precision?: number): string;
export declare function calculateSize(size: number, ratio: number, precision?: number): number;
export declare function calculateSize(size: string | number, ratio: number, precision?: number): string | number;
/**
 * Default values for dimensions
 */
export declare const defaultIconDimensions: Required<IconifyDimenisons>;
/**
 * Default values for transformations
 */
export declare const defaultIconTransformations: Required<IconifyTransformations>;
/**
 * Default values for all optional IconifyIcon properties
 */
export declare const defaultIconProps: Required<IconifyOptional>;
/**
 * Default values for all properties used in ExtendedIconifyIcon
 */
export declare const defaultExtendedIconProps: Required<FullExtendedIconifyIcon>;
/**
 * Merge transformations
 */
export declare function mergeIconTransformations<T extends IconifyTransformations>(obj1: T, obj2: IconifyTransformations): T;
/**
 * Icon size
 */
export type IconifyIconSize = null | string | number;
/**
 * Dimensions
 */
export interface IconifyIconSizeCustomisations {
    width?: IconifyIconSize;
    height?: IconifyIconSize;
}
/**
 * Icon customisations
 */
export interface IconifyIconCustomisations extends IconifyTransformations, IconifyIconSizeCustomisations {
}
export type FullIconCustomisations = Required<IconifyIconCustomisations>;
/**
 * Default icon customisations values
 */
export declare const defaultIconSizeCustomisations: Required<IconifyIconSizeCustomisations>;
export declare const defaultIconCustomisations: FullIconCustomisations;
/**
 * Merge icon and alias
 *
 * Can also be used to merge default values and icon
 */
export declare function mergeIconData<T extends PartialExtendedIconifyIcon>(parent: T, child: PartialExtendedIconifyIcon): T;
export type ParentIconsList = string[];
export type ParentIconsTree = Record<string, ParentIconsList | null>;
/**
 * Resolve icon set icons
 *
 * Returns parent icon for each icon
 */
export declare function getIconsTree(data: IconifyJSON, names?: string[]): ParentIconsTree;
/**
 * Get icon data, using prepared aliases tree
 */
export declare function internalGetIconData(data: IconifyJSON, name: string, tree: string[]): ExtendedIconifyIcon;
/**
 * Get data for icon
 */
export declare function getIconData(data: IconifyJSON, name: string): ExtendedIconifyIcon | null;
/**
 * Interface for getSVGData() result
 */
export interface IconifyIconBuildResult {
    attributes: {
        width?: string;
        height?: string;
        viewBox: string;
    };
    viewBox: SVGViewBox;
    body: string;
}
/**
 * Check if value should be unset. Allows multiple keywords
 */
export declare const isUnsetKeyword: (value: unknown) => value is "none" | "unset" | "undefined";
/**
 * Replace IDs in SVG output with unique IDs
 */
export declare function replaceIDs(body: string, prefix?: string | ((id: string) => string)): string;
/**
 * Get SVG attributes and content from icon + customisations
 *
 * Does not generate style to make it compatible with frameworks that use objects for style, such as React.
 * Instead, it generates 'inline' value. If true, rendering engine should add verticalAlign: -0.125em to icon.
 *
 * Customisations should be normalised by platform specific parser.
 * Result should be converted to <svg> by platform specific parser.
 * Use replaceIDs to generate unique IDs for body.
 */
export declare function iconToSVG(icon: IconifyIcon, customisations?: IconifyIconCustomisations): IconifyIconBuildResult;
export {};