import type { ElementSymbol } from '../element';
import type { CompositionType } from './';
import type { AnyStructure } from '../structure';
export declare const AMOUNT_FORMAT = ".3~f";
export declare const format_amount: (amount: number, amount_format?: string) => string;
export type FormulaFormatOptions = {
    plain_text?: boolean;
    delim?: string;
    amount_format?: string;
};
export declare const format_composition_formula: (composition: CompositionType, sort_fn: (symbols: ElementSymbol[]) => ElementSymbol[], { plain_text, delim, amount_format, }?: FormulaFormatOptions) => string;
type FormulaInput = string | CompositionType | AnyStructure;
export declare const get_alphabetical_formula: (input: FormulaInput, options?: FormulaFormatOptions) => string;
export declare const sort_by_electronegativity: (symbols: ElementSymbol[]) => ElementSymbol[];
export declare const sort_by_hill_notation: (symbols: ElementSymbol[]) => ElementSymbol[];
export declare const get_electro_neg_formula: (input: FormulaInput, options?: FormulaFormatOptions) => string;
export interface FormulaMarkupToken {
    text?: string;
    sub?: string;
    sup?: string;
}
export declare function is_compound(name: string): boolean;
export declare function tokenize_formula_markup(formula: string): FormulaMarkupToken[];
export interface FormulaLabelSegment {
    text: string;
    subscript: boolean;
}
export declare function get_formula_label_segments(label: string): FormulaLabelSegment[];
export declare function format_formula_svg(formula: string, use_subscripts?: boolean): string;
export declare function format_formula_html(formula: string, use_subscripts?: boolean): string;
export declare const format_label_svg: (label: string, use_subscripts?: boolean) => string;
export declare const format_label_html: (label: string, use_subscripts?: boolean) => string;
export declare function format_oxi_state(oxidation?: number): string;
export {};