import { IDocumentFactory, IElementLike, INodeLike } from "./DocumentInterface";
export type DOMSanitizerOptions = {
    tagPrefix?: string;
    replacementTagPrefix?: string;
};
export declare class DOMSanitizer {
    /** Tags whose content and attributes are always stripped. */
    static readonly BLOCKED_TAGS: Set<string>;
    /**
     * Returns true if a tag with the given name should be stripped of all
     * content and attributes during sanitisation.
     */
    static isBlockedTag(tagName: string): boolean;
    /**
     * Given a tag name and sanitisation options, returns the sanitised tag name.
     * Non-prefixed tags are renamed (e.g. "div" → "x-div"). Returns null for
     * blocked tags that should be skipped entirely.
     */
    static sanitiseTagName(tagName: string, options: DOMSanitizerOptions): string | null;
    /**
     * Sanitises a DOM node in-place. When tag replacement occurs (via tagPrefix option),
     * the returned node may be a different object than the input node.
     */
    static sanitise(node: INodeLike, options?: DOMSanitizerOptions, doc?: IDocumentFactory): INodeLike;
    static replaceNodeTagName(node: IElementLike, newTagName: string, doc?: IDocumentFactory): IElementLike;
    static stripAllAttributes(node: IElementLike): void;
    static IsASCIIDigit(c: string): boolean;
    static IsASCIIAlpha(c: string): boolean;
    static IsValidAttributeName(characters: string): boolean;
    static shouldAcceptAttribute(attribute: string): boolean;
}
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