From f27cb3587bf362aedec65c955b0a609eba9edc27 Mon Sep 17 00:00:00 2001
From: Sami Saves <sami.saves@cloudriven.fi>
Date: Tue, 14 May 2019 11:04:52 +0300
Subject: [PATCH 1/2] Added markdown-escapes package

---
 packages/draft-js-export-markdown/package.json | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/packages/draft-js-export-markdown/package.json b/packages/draft-js-export-markdown/package.json
index cb919eb7..55ba024c 100644
--- a/packages/draft-js-export-markdown/package.json
+++ b/packages/draft-js-export-markdown/package.json
@@ -9,7 +9,8 @@
     "watch": "babel src --watch --out-dir lib --ignore \"_*\""
   },
   "dependencies": {
-    "draft-js-utils": "^1.3.3"
+    "draft-js-utils": "^1.3.3",
+    "markdown-escapes": "1.0.3"
   },
   "peerDependencies": {
     "draft-js": ">=0.10.0",

From 3018663cfe0d7fe1b0fc29d8fab0aeb8b6849087 Mon Sep 17 00:00:00 2001
From: Sami Saves <sami.saves@cloudriven.fi>
Date: Tue, 14 May 2019 11:06:16 +0300
Subject: [PATCH 2/2] Add encoding to all markdown related characters

---
 .../src/stateToMarkdown.js                     | 18 +++++++++++-------
 1 file changed, 11 insertions(+), 7 deletions(-)

diff --git a/packages/draft-js-export-markdown/src/stateToMarkdown.js b/packages/draft-js-export-markdown/src/stateToMarkdown.js
index 933723d0..62a3e1c7 100644
--- a/packages/draft-js-export-markdown/src/stateToMarkdown.js
+++ b/packages/draft-js-export-markdown/src/stateToMarkdown.js
@@ -6,6 +6,7 @@ import {
   ENTITY_TYPE,
   INLINE_STYLE,
 } from 'draft-js-utils';
+import markdownEscapes from 'markdown-escapes';
 
 import type {ContentState, ContentBlock} from 'draft-js';
 
@@ -194,6 +195,13 @@ class MarkupGenerator {
     }
   }
 
+  encodeContent(text) {
+    const markdownCharacters = markdownEscapes({gfm: this.options.gfm});
+
+    const regex = new RegExp(`[${'\\' + markdownCharacters.join('\\')}]`, 'g');
+    return text.replace(regex, '\\$&');
+  }
+
   renderBlockContent(block: ContentBlock): string {
     let {contentState} = this;
     let blockType = block.getType();
@@ -224,19 +232,19 @@ class MarkupGenerator {
             if (style.has(CODE)) {
               return '`' + encodeCode(content) + '`';
             }
-            content = encodeContent(text);
+
+            content = this.encodeContent(text);
+
             if (style.has(BOLD)) {
               content = `**${content}**`;
             }
             if (style.has(UNDERLINE)) {
-              // TODO: encode `+`?
               content = `++${content}++`;
             }
             if (style.has(ITALIC)) {
               content = `_${content}_`;
             }
             if (style.has(STRIKETHROUGH)) {
-              // TODO: encode `~`?
               content = `~~${content}~~`;
             }
             return content;
@@ -273,10 +281,6 @@ function canHaveDepth(blockType: any): boolean {
   }
 }
 
-function encodeContent(text) {
-  return text.replace(/[*_`]/g, '\\$&');
-}
-
 function encodeCode(text) {
   return text.replace(/`/g, '\\`');
 }