add initial marp implementation with sample content and build configuration

node_modules/speech-rule-engine/js/highlighter/html_highlighter.js

@@ -0,0 +1,49 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.HtmlHighlighter = void 0;
+const DomUtil = require("../common/dom_util.js");
+const abstract_highlighter_js_1 = require("./abstract_highlighter.js");
+class HtmlHighlighter extends abstract_highlighter_js_1.AbstractHighlighter {
+    constructor() {
+        super();
+        this.mactionName = 'maction';
+    }
+    highlightNode(node) {
+        const info = {
+            node: node,
+            foreground: node.style.color,
+            position: node.style.position
+        };
+        const color = this.color.rgb();
+        node.style.color = color.foreground;
+        node.style.position = 'relative';
+        const bbox = node.bbox;
+        if (bbox && bbox.w) {
+            const vpad = 0.05;
+            const hpad = 0;
+            const span = DomUtil.createElement('span');
+            const left = parseFloat(node.style.paddingLeft || '0');
+            span.style.backgroundColor = color.background;
+            span.style.opacity = color.alphaback.toString();
+            span.style.display = 'inline-block';
+            span.style.height = bbox.h + bbox.d + 2 * vpad + 'em';
+            span.style.verticalAlign = -bbox.d + 'em';
+            span.style.marginTop = span.style.marginBottom = -vpad + 'em';
+            span.style.width = bbox.w + 2 * hpad + 'em';
+            span.style.marginLeft = left - hpad + 'em';
+            span.style.marginRight = -bbox.w - hpad - left + 'em';
+            node.parentNode.insertBefore(span, node);
+            info.box = span;
+        }
+        return info;
+    }
+    unhighlightNode(info) {
+        const node = info.node;
+        node.style.color = info.foreground;
+        node.style.position = info.position;
+        if (info.box) {
+            info.box.parentNode.removeChild(info.box);
+        }
+    }
+}
+exports.HtmlHighlighter = HtmlHighlighter;