/**
 * VisualFormat
 *
 * @namespace VisualFormat
 */
declare class VisualFormat {
    /**
     * Parses a single line of vfl into an array of constraint definitions.
     *
     * When the visual-format could not be succesfully parsed an exception is thrown containing
     * additional info about the parse error and column position.
     *
     * @param {String} visualFormat Visual format string (cannot contain line-endings!).
     * @param {Object} [options] Configuration options.
     * @param {Boolean} [options.extended] When set to true uses the extended syntax (default: false).
     * @param {String} [options.outFormat] Output format (`constraints` or `raw`) (default: `constraints`).
     * @param {Number} [options.lineIndex] Line-index used when auto generating equal-spacing constraints.
     * @return {Array} Array of constraint definitions.
     */
    static parseLine(visualFormat: any, options: any): any[];
    /**
     * Parses one or more visual format strings into an array of constraint definitions.
     *
     * When the visual-format could not be succesfully parsed an exception is thrown containing
     * additional info about the parse error and column position.
     *
     * @param {String|Array} visualFormat One or more visual format strings.
     * @param {Object} [options] Configuration options.
     * @param {Boolean} [options.extended] When set to true uses the extended syntax (default: false).
     * @param {Boolean} [options.strict] When set to false trims any leading/trailing spaces and ignores empty lines (default: true).
     * @param {String} [options.lineSeparator] String that defines the end of a line (default `\n`).
     * @param {String} [options.outFormat] Output format (`constraints` or `raw`) (default: `constraints`).
     * @return {Array} Array of constraint definitions.
     */
    static parse(visualFormat: any, options: any): any[];
    /**
     * Parses meta information from the comments in the VFL.
     *
     * Additional meta information can be specified in the comments
     * for previewing and rendering purposes. For instance, the view-port
     * aspect-ratio, sub-view widths and colors, can be specified. The
     * following example renders three colored circles in the visual-format editor:
     *
     * ```vfl
     * //viewport aspect-ratio:3/1 max-height:300
     * //colors red:#FF0000 green:#00FF00 blue:#0000FF
     * //shapes red:circle green:circle blue:circle
     * H:|-[row:[red(green,blue)]-[green]-[blue]]-|
     * V:|[row]|
     * ```
     *
     * Supported categories and properties:
     *
     * |Category|Property|Example|
     * |--------|--------|-------|
     * |`viewport`|`aspect-ratio:{width}/{height}`|`//viewport aspect-ratio:16/9`|
     * ||`width:[{number}/intrinsic]`|`//viewport width:10`|
     * ||`height:[{number}/intrinsic]`|`//viewport height:intrinsic`|
     * ||`min-width:{number}`|
     * ||`max-width:{number}`|
     * ||`min-height:{number}`|
     * ||`max-height:{number}`|
     * |`spacing`|`[{number}/array]`|`//spacing:8` or `//spacing:[10, 20, 5]`|
     * |`widths`|`{view-name}:[{number}/intrinsic]`|`//widths subview1:100`|
     * |`heights`|`{view-name}:[{number}/intrinsic]`|`//heights subview1:intrinsic`|
     * |`colors`|`{view-name}:{color}`|`//colors redview:#FF0000 blueview:#00FF00`|
     * |`shapes`|`{view-name}:[circle/square]`|`//shapes avatar:circle`|
     *
     * @param {String|Array} visualFormat One or more visual format strings.
     * @param {Object} [options] Configuration options.
     * @param {String} [options.lineSeparator] String that defines the end of a line (default `\n`).
     * @param {String} [options.prefix] When specified, also processes the categories using that prefix (e.g. "-dev-viewport max-height:10").
     * @return {Object} meta-info
     */
    static parseMetaInfo(visualFormat: any, options?: any): {
        viewport?: Record<string, any>;
        widths?: Record<string, any>;
        heights?: Record<string, any>;
        spacing?: any;
    };
}
export default VisualFormat;
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