update at 2025-09-22 13:55:41

src/markdown/empty-line.ts

@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) 2024-2025 Sun Booshi
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+import { Tokens, MarkedExtension } from "marked";
+import { Extension } from "./extension";
+
+export class EmptyLineRenderer extends Extension {
+  markedExtension(): MarkedExtension {
+    return {
+      extensions: [{
+        name: 'emptyline',
+        level: 'block',
+        tokenizer(src: string) {
+          const match = /^\n\n+/.exec(src);
+          if (match) {
+            console.log('mathced src: ', src)
+            return {
+              type: "emptyline",
+              raw: match[0],
+            };
+          }
+        },
+        renderer: (token: Tokens.Generic) => {
+          return '<p><br></p>'.repeat(token.raw.length - 1);
+        },
+      }]
+    }
+  }
+}