import { ElementRef, OnChanges, SimpleChanges } from '@angular/core';
import * as i0 from "@angular/core";
export declare class HighlightDirective implements OnChanges {
    private el;
    /**
     * Content we want to highlight
     */
    content?: string;
    /**
     * Text to highlight in the content
     */
    textToHighlight?: string;
    /**
     * Whether to escape accents or no
     */
    escapeAccents: boolean;
    /**
     * Whether to take into account case or no
     */
    caseSensitive: boolean;
    private readonly OPENING_TAG;
    private readonly CLOSING_TAG;
    constructor(el: ElementRef);
    ngOnChanges(changes: SimpleChanges): void;
    private highlightText;
    static ɵfac: i0.ɵɵFactoryDeclaration<HighlightDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<HighlightDirective, "[njHighlight]", never, { "content": { "alias": "content"; "required": false; }; "textToHighlight": { "alias": "textToHighlight"; "required": false; }; "escapeAccents": { "alias": "escapeAccents"; "required": false; }; "caseSensitive": { "alias": "caseSensitive"; "required": false; }; }, {}, never, never, true, never>;
}