add initial marp implementation with sample content and build configuration

node_modules/speech-rule-engine/mjs/highlighter/mml_highlighter.js

@@ -0,0 +1,29 @@
+import { AbstractHighlighter } from './abstract_highlighter.js';
+export class MmlHighlighter extends AbstractHighlighter {
+    constructor() {
+        super();
+        this.mactionName = 'maction';
+    }
+    highlightNode(node) {
+        let style = node.getAttribute('style');
+        style += ';background-color: ' + this.colorString().background;
+        style += ';color: ' + this.colorString().foreground;
+        node.setAttribute('style', style);
+        return { node: node };
+    }
+    unhighlightNode(info) {
+        let style = info.node.getAttribute('style');
+        style = style.replace(';background-color: ' + this.colorString().background, '');
+        style = style.replace(';color: ' + this.colorString().foreground, '');
+        info.node.setAttribute('style', style);
+    }
+    colorString() {
+        return this.color.rgba();
+    }
+    getMactionNodes(node) {
+        return Array.from(node.getElementsByTagName(this.mactionName));
+    }
+    isMactionNode(node) {
+        return node.tagName === this.mactionName;
+    }
+}