add initial marp implementation with sample content and build configuration

node_modules/speech-rule-engine/mjs/audio/abstract_audio_renderer.js

@@ -0,0 +1,47 @@
+import { Engine } from '../common/engine.js';
+export class AbstractAudioRenderer {
+    constructor() {
+        this.separator_ = ' ';
+    }
+    set separator(sep) {
+        this.separator_ = sep;
+    }
+    get separator() {
+        return Engine.getInstance().modality === 'braille' ? '' : this.separator_;
+    }
+    error(_key) {
+        return null;
+    }
+    merge(spans) {
+        let str = '';
+        const len = spans.length - 1;
+        for (let i = 0, span; (span = spans[i]); i++) {
+            str += span.speech;
+            if (i < len) {
+                const sep = span.attributes['separator'];
+                str += sep !== undefined ? sep : this.separator;
+            }
+        }
+        return str;
+    }
+    finalize(str) {
+        return str;
+    }
+    pauseValue(value) {
+        let numeric;
+        switch (value) {
+            case 'long':
+                numeric = 750;
+                break;
+            case 'medium':
+                numeric = 500;
+                break;
+            case 'short':
+                numeric = 250;
+                break;
+            default:
+                numeric = parseInt(value, 10);
+        }
+        return Math.floor((numeric * Engine.getInstance().getRate()) / 100);
+    }
+}