Multi line code block support

markdown.js

@@ -265,14 +265,51 @@ class MultiLineCode extends Symbol {
    */
   static create(lineFeed) {
     const instance = new MultiLineCode();
-    const lines = [];
+    const line = lineFeed.claim().trim();
-    const firstLine = lineFeed.claim().trim();
+    const lineWithoutStartTag = line.slice(3, line.length);
-    const lineWithoutBackticks = line.slice(1, line.length - 1);
+
-    instance.text = lineWithoutBackticks;
+    const sameLineContainsEnding = lineWithoutStartTag.includes("```");
+    if (sameLineContainsEnding) {
+      const endsWithTag = lineWithoutStartTag.endsWith("```");
+      if (endsWithTag) {
+        instance.text = lineWithoutStartTag.slice(
+          0,
+          lineWithoutStartTag.length - 3
+        );
+        return instance;
+      }
+      const [text, rest] = splitStringAtToken("```", lineWithoutStartTag);
+      lineFeed.push(rest);
+      instance.text = text;
+      return instance;
+    }
+    const lines = [lineWithoutStartTag];
+
+    let endTokenFound = false;
+    while (!endTokenFound && !lineFeed.isEmpty()) {
+      const nextLine = lineFeed.claim();
+      if (!nextLine.includes("```")) {
+        lines.push(nextLine);
+        continue;
+      }
+      if (nextLine.endsWith("```")) {
+        lines.push(nextLine.slice(0, nextLine.length - 3));
+        break;
+      }
+      const [lastLine, rest] = splitStringAtToken("```", nextLine);
+      lineFeed.push(rest);
+      lines.push(lastLine);
+      break;
+    }
+
+    instance.text = lines.join("\n");
     return instance;
   }
   render() {
-    return `<code>${this.text}</code>`;
+    return this.text
+      .split("\n")
+      .map((text) => `<code style="display: block;">${text}</code>`)
+      .join("");
   }
 }
 
@@ -305,7 +342,25 @@ class CatchAll extends Symbol {
   }
 }
 
-const Factories = [Heading, Bold, Italic, SingleLineCode, CatchAll];
+/**
+ *
+ * @param {string} token
+ * @param {string} string
+ * @returns {string[]}
+ */
+const splitStringAtToken = (token, string) => {
+  const index = string.indexOf(token);
+  return [string.slice(0, index), string.slice(index + token.length)];
+};
+
+const Factories = [
+  Heading,
+  Bold,
+  Italic,
+  MultiLineCode,
+  SingleLineCode,
+  CatchAll,
+];
 
 export const toHtml = (markdown) => {
   const symbols = toSymbols(markdown);

notes/1-initial-commit/note.md

@@ -21,6 +21,12 @@ But it's a start!
 
 Oh and I need some test markdown symbols to practice on..
 
+```
+codeblock
+codeblock
+
+```
+
 # H1
 
 ## H2