add initial marp implementation with sample content and build configuration

node_modules/@marp-team/marpit/lib/markdown/slide_container.js

@@ -0,0 +1,34 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.slideContainer = exports.default = void 0;
+var _split = require("../helpers/split");
+var _wrap_array = require("../helpers/wrap_array");
+var _wrap_tokens = require("../helpers/wrap_tokens");
+var _plugin = _interopRequireDefault(require("../plugin"));
+function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; }
+/** @module */
+
+/**
+ * Marpit slide container plugin.
+ *
+ * @function slideContainer
+ * @param {MarkdownIt} md markdown-it instance.
+ */
+function _slideContainer(md) {
+  const containers = (0, _wrap_array.wrapArray)(md.marpit.options.slideContainer);
+  if (!containers) return;
+  const target = [...containers].reverse();
+  md.core.ruler.push('marpit_slide_containers', state => {
+    if (state.inlineMode) return;
+    const newTokens = [];
+    for (const tokens of (0, _split.split)(state.tokens, t => t.meta && t.meta.marpitSlideElement === 1, true)) {
+      if (tokens.length > 0) newTokens.push(...target.reduce((slides, conts) => (0, _wrap_tokens.wrapTokens)(state.Token, 'marpit_slide_containers', conts, slides), tokens));
+    }
+    state.tokens = newTokens;
+  });
+}
+const slideContainer = exports.slideContainer = (0, _plugin.default)(_slideContainer);
+var _default = exports.default = slideContainer;