feat: simple markdown parser (#252)

* feat: simple markdown parser

* chore: rename test file name

* feat: add plain text link parser

* chore: update style

web/src/labs/marked/parser/Image.ts

@@ -0,0 +1,23 @@
+export const IMAGE_REG = /!\[.*?\]\((.+?)\)/;
+
+const match = (rawStr: string): number => {
+  const matchResult = rawStr.match(IMAGE_REG);
+  if (!matchResult) {
+    return 0;
+  }
+
+  const matchStr = matchResult[0];
+  return matchStr.length;
+};
+
+const renderer = (rawStr: string): string => {
+  const parsedStr = rawStr.replace(IMAGE_REG, "<img class='img' src='$1' />");
+  return parsedStr;
+};
+
+export default {
+  name: "image",
+  regex: IMAGE_REG,
+  match,
+  renderer,
+};