add initial marp implementation with sample content and build configuration

node_modules/mathjax-full/js/a11y/explorer/KeyExplorer.d.ts

@@ -0,0 +1,55 @@
+import { A11yDocument, Region } from './Region.js';
+import { Explorer, AbstractExplorer } from './Explorer.js';
+import Sre from '../sre.js';
+export interface KeyExplorer extends Explorer {
+    KeyDown(event: KeyboardEvent): void;
+    FocusIn(event: FocusEvent): void;
+    FocusOut(event: FocusEvent): void;
+}
+export declare abstract class AbstractKeyExplorer<T> extends AbstractExplorer<T> implements KeyExplorer {
+    attached: boolean;
+    protected walker: Sre.walker;
+    private eventsAttached;
+    protected events: [string, (x: Event) => void][];
+    private oldIndex;
+    abstract KeyDown(event: KeyboardEvent): void;
+    FocusIn(_event: FocusEvent): void;
+    FocusOut(_event: FocusEvent): void;
+    Update(force?: boolean): void;
+    Attach(): void;
+    AddEvents(): void;
+    Detach(): void;
+    Stop(): void;
+}
+export declare class SpeechExplorer extends AbstractKeyExplorer<string> {
+    document: A11yDocument;
+    protected region: Region<string>;
+    protected node: HTMLElement;
+    private mml;
+    private static updatePromise;
+    speechGenerator: Sre.speechGenerator;
+    showRegion: string;
+    private init;
+    private restarted;
+    constructor(document: A11yDocument, region: Region<string>, node: HTMLElement, mml: string);
+    Start(): void;
+    Update(force?: boolean): void;
+    Speech(walker: Sre.walker): void;
+    KeyDown(event: KeyboardEvent): void;
+    protected triggerLink(code: number): boolean;
+    Move(key: number): void;
+    private initWalker;
+    private getOptions;
+}
+export declare class Magnifier extends AbstractKeyExplorer<HTMLElement> {
+    document: A11yDocument;
+    protected region: Region<HTMLElement>;
+    protected node: HTMLElement;
+    private mml;
+    constructor(document: A11yDocument, region: Region<HTMLElement>, node: HTMLElement, mml: string);
+    Update(force?: boolean): void;
+    Start(): void;
+    private showFocus;
+    Move(key: number): void;
+    KeyDown(event: KeyboardEvent): void;
+}