fix: don't escape markdown characters in code

src/utils/turndown-rules/code-block-rule.ts

@@ -20,13 +20,18 @@ const getIntendNumber = (node: any): number => {
     return intendNumber;
 }
 
+export const unescapeMarkdown = (s: string): string => s.replace(/\\(.)/g, '$1');
+
 export const codeBlockRule = {
     filter: filterByNodeName('DIV'),
     replacement: (content: string, node: any) => {
         const nodeProxy = getAttributeProxy(node);
         const intend = getIntendNumber(node);
         content = `${'\t'.repeat(intend)}${content}`; 
         if (isCodeBlock(node)) {
+            // turndown has already escaped markdown chars (and all '\') in content;
+            // reverse that to avoid extraneous backslashes in code block.
+            content = unescapeMarkdown(content);
             return `${markdownBlock}${content}${markdownBlock}`;
         }
 
@@ -47,4 +52,4 @@ export const codeBlockRule = {
 
         return node.isBlock ? `\n${content}\n` : content;
     },
-};
+};

src/utils/turndown-rules/monospace-code-block-rule.ts

@@ -1,5 +1,6 @@
 import { filterByNodeName } from './filter-by-nodename';
 import { getAttributeProxy } from './get-attribute-proxy';
+import { unescapeMarkdown } from './code-block-rule';
 
 const markdownBlock = '\n```\n';
 
@@ -64,6 +65,7 @@ export const monospaceCodeBlockRule = {
                 return content;
             }
 
+            content = unescapeMarkdown(content);
             return content.trim() ? `${markdownBlock}${content}${markdownBlock}` : content;
         }
 

test/data/test-noteWithCodeBlock.enex

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE en-export SYSTEM "http://xml.evernote.com/pub/evernote-export3.dtd">
 <en-export export-date="20201019T211051Z" application="Evernote" version="Evernote Mac 7.14 (458265)">
-<note><title>Note with code block</title><content><![CDATA[<!DOCTYPE en-note SYSTEM "http://xml.evernote.com/pub/enml2.dtd"><en-note><div>Some text before the code block</div><div><br /></div><div style="box-sizing: border-box; padding: 8px; font-family: Monaco, Menlo, Consolas, &quot;Courier New&quot;, monospace; font-size: 12px; color: rgb(51, 51, 51); border-top-left-radius: 4px; border-top-right-radius: 4px; border-bottom-right-radius: 4px; border-bottom-left-radius: 4px; background-color: rgb(251, 250, 248); border: 1px solid rgba(0, 0, 0, 0.15);-en-codeblock:true;"><div># This program prints Hello, world in Python</div><div><div>print('Hello, world!')<br /></div></div></div><div><br /></div><div><br /></div><div>Some code after the code block 1</div><div><br /></div><div>One more longer code block</div><div><br /></div><div style="box-sizing: border-box; padding: 8px; font-family: Monaco, Menlo, Consolas, &quot;Courier New&quot;, monospace; font-size: 12px; color: rgb(51, 51, 51); border-top-left-radius: 4px; border-top-right-radius: 4px; border-bottom-right-radius: 4px; border-bottom-left-radius: 4px; background-color: rgb(251, 250, 248); border: 1px solid rgba(0, 0, 0, 0.15);-en-codeblock:true;"><div>// some Rust code...</div><div>fn main() {</div><div>    for n in 1..=100 {<br /></div><div>        if n % 15 == 0 {</div><div>            println!("fizzbuzz");</div><div>        } else if n % 3 == 0 {</div><div>            println!("fizz");</div><div>        } else if n % 5 == 0 {</div><div>            println!("buzz");</div><div>        } else {</div><div>            println!("{}", n);</div><div>        }</div><div>    }</div><div>}</div></div><div><br /></div><div><br /></div></en-note>]]></content><created>20201019T194241Z</created><updated>20201019T210141Z</updated><note-attributes><author>Rodrigo</author><source>desktop.mac</source><reminder-order>0</reminder-order></note-attributes></note>
+<note><title>Note with code block</title><content><![CDATA[<!DOCTYPE en-note SYSTEM "http://xml.evernote.com/pub/enml2.dtd"><en-note><div>Some text before the code block</div><div><br /></div><div style="box-sizing: border-box; padding: 8px; font-family: Monaco, Menlo, Consolas, &quot;Courier New&quot;, monospace; font-size: 12px; color: rgb(51, 51, 51); border-top-left-radius: 4px; border-top-right-radius: 4px; border-bottom-right-radius: 4px; border-bottom-left-radius: 4px; background-color: rgb(251, 250, 248); border: 1px solid rgba(0, 0, 0, 0.15);-en-codeblock:true;"><div># This program prints *Hello, world* in _Python_</div><div><div>print('Hello, world!\n')<br /></div></div></div><div><br /></div><div><br /></div><div>Some code after the code block 1</div><div><br /></div><div>One more longer code block</div><div><br /></div><div style="box-sizing: border-box; padding: 8px; font-family: Monaco, Menlo, Consolas, &quot;Courier New&quot;, monospace; font-size: 12px; color: rgb(51, 51, 51); border-top-left-radius: 4px; border-top-right-radius: 4px; border-bottom-right-radius: 4px; border-bottom-left-radius: 4px; background-color: rgb(251, 250, 248); border: 1px solid rgba(0, 0, 0, 0.15);-en-codeblock:true;"><div>// some Rust code...</div><div>fn main() {</div><div>    for n in 1..=100 {<br /></div><div>        if n % 15 == 0 {</div><div>            println!("fizzbuzz");</div><div>        } else if n % 3 == 0 {</div><div>            println!("fizz");</div><div>        } else if n % 5 == 0 {</div><div>            println!("buzz");</div><div>        } else {</div><div>            println!("{}", n);</div><div>        }</div><div>    }</div><div>}</div></div><div><br /></div><div><br /></div></en-note>]]></content><created>20201019T194241Z</created><updated>20201019T210141Z</updated><note-attributes><author>Rodrigo</author><source>desktop.mac</source><reminder-order>0</reminder-order></note-attributes></note>
 </en-export>

test/data/test-noteWithCodeBlock.md

@@ -3,9 +3,9 @@
 Some text before the code block
 
 ```
-\# This program prints Hello, world in Python
+# This program prints *Hello, world* in _Python_
 
-print('Hello, world!')
+print('Hello, world!\n')
 
 
 ```