add initial marp implementation with sample content and build configuration

node_modules/speech-rule-engine/mjs/common/processor.js

@@ -0,0 +1,32 @@
+import { KeyCode } from './event_util.js';
+export class Processor {
+    static stringify_(x) {
+        return x ? x.toString() : x;
+    }
+    constructor(name, methods) {
+        this.name = name;
+        this.process = methods.processor;
+        this.postprocess =
+            methods.postprocessor || ((x, _y) => x);
+        this.processor = this.postprocess
+            ? function (x) {
+                return this.postprocess(this.process(x), x);
+            }
+            : this.process;
+        this.print = methods.print || Processor.stringify_;
+        this.pprint = methods.pprint || this.print;
+    }
+}
+Processor.LocalState = { walker: null, speechGenerator: null, highlighter: null };
+export class KeyProcessor extends Processor {
+    static getKey_(key) {
+        return typeof key === 'string'
+            ?
+                KeyCode[key.toUpperCase()]
+            : key;
+    }
+    constructor(name, methods) {
+        super(name, methods);
+        this.key = methods.key || KeyProcessor.getKey_;
+    }
+}