stuff

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

@@ -0,0 +1,73 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.slide = exports.defaultAnchorCallback = exports.default = void 0;
+var _split = require("../helpers/split");
+var _wrap_tokens = require("../helpers/wrap_tokens");
+var _plugin = _interopRequireDefault(require("../plugin"));
+function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; }
+/** @module */
+
+const defaultAnchorCallback = i => `${i + 1}`;
+
+/**
+ * Marpit slide plugin.
+ *
+ * Split markdown-it tokens into the slides by horizontal rule. Each slides
+ * will be wrapped by section element.
+ *
+ * @function slide
+ * @param {MarkdownIt} md markdown-it instance.
+ * @param {Object} [opts]
+ * @param {Object} [opts.attributes] The `<section>` element attributes by
+ *     key-value pairs.
+ * @param {(boolean|Marpit~AnchorCallback)} [opts.anchor=true] If true, assign
+ *     the anchor with the page number starting from 1. You can customize anchor
+ *     name by passing callback function.
+ */
+exports.defaultAnchorCallback = defaultAnchorCallback;
+function _slide(md, opts = {}) {
+  const anchor = opts.anchor === undefined ? true : opts.anchor;
+  const anchorCallback = (() => {
+    if (typeof anchor === 'function') return anchor;
+    if (anchor) return defaultAnchorCallback;
+    return () => undefined;
+  })();
+  md.core.ruler.push('marpit_slide', state => {
+    if (state.inlineMode) return;
+    const splittedTokens = (0, _split.split)(state.tokens, t => t.type === 'hr' && t.level === 0, true);
+    const {
+      length: marpitSlideTotal
+    } = splittedTokens;
+    state.tokens = splittedTokens.reduce((arr, slideTokens, marpitSlide) => {
+      const firstHr = slideTokens[0] && slideTokens[0].type === 'hr' ? slideTokens[0] : undefined;
+      const mapTarget = firstHr || slideTokens.find(t => t.map);
+      return [...arr, ...(0, _wrap_tokens.wrapTokens)(state.Token, 'marpit_slide', {
+        ...(opts.attributes || {}),
+        tag: 'section',
+        id: anchorCallback(marpitSlide),
+        open: {
+          block: true,
+          meta: {
+            marpitSlide,
+            marpitSlideTotal,
+            marpitSlideElement: 1
+          },
+          map: mapTarget ? mapTarget.map : [0, 1]
+        },
+        close: {
+          block: true,
+          meta: {
+            marpitSlide,
+            marpitSlideTotal,
+            marpitSlideElement: -1
+          }
+        }
+      }, slideTokens.slice(firstHr ? 1 : 0))];
+    }, []);
+  });
+}
+const slide = exports.slide = (0, _plugin.default)(_slide);
+var _default = exports.default = slide;