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Sync for Lemmy @lemmy.world Ljdawson (Sync dev) @lemmy.world 1 yr. ago

Help needed with markdown support

I'm updating the markdown parser and want to be sure I'm handling all new types of links e.g. links to communities or users.

If you can please comment any examples I'll add support.

Cheers, Lj!

edit: testing a link

edit 2: https://lemmy.world/post/1986302

edit 3: https://feddit.uk/post/699250

edit 4: https://lemmy.ml/post/2335045

edit 5: https://lemmy.world/comment/1706265

edit 6: https://lemmy.ml/comment/1651859

edit 7: https://lemmy.ml/c/asklemmy

edit 8: https://kerala.party/c/asklemmy@lemmy.ml

edit 9: https://lemmy.ml/u/ljdawson

edit 8: https://kerala.party/u/ljdawson@lemmy.world

edit 9: https://latte.isnot.coffee/post/6799

edit 10: !android@lemmy.world

edit: 11: @ljdawson@lemmy.ml

92 comments

lemmy also (unofficially) supports footnotes.[^1] you may want to view this in a browser^[as it currently doesn't render in any mobile clients]^[also note the differing positions of the caret]

additionally, with no markdown linking at all, the web interface^[and i believe most apps] automatically turns !community@instance.tld into a link

[^1]: with two different syntaxes
- That's interesting. ^[Markdown is very cool]
Shrug emote in backticks: ¯\_(ツ)_/¯

Shrug emote unescaped: ¯_(ツ)_/¯

Shrug emote properly escaped: ¯\_(ツ)_/¯
- This is the real shit right here.
Italic Italic

Bold Bold

Deferred Link

List1

List1

List1

List2

List2

List2

One

Two

Three

One

Two

Three

Horizontal Rule

hello world

Horizontal Rule

hello world

Inline code with backticks

# code block print '3 backticks or' print 'indent 4 spaces'

# code block print '3 backticks or' print 'indent 4 spaces'

secrets

hi

Some _subscript text

Some ^superscript text
- subscript and superscript don't work for me on Jerboa
  
  Same on Thunder. Also, the spoiler isn't hidden.
  
  Same on Connect
  
  Permanently Deleted
- I'm on the beta version and here are the issues that I notice. The first horizontal line make the text bold instead of making a line. I think that you cannot "close" a subscript or a superscript. I find the copy block button a bit too large. I think that you used the wrong spoiler tag.
  
  Here below my test on the beta version:
  
  !This is a spoil!<
  
  E_x = x^2
  
  Any way, I give my energy to the sync developer and testers ༼ つ ◕_◕ ༽つ
  
  I am not yet subscribed in the Canada community in lemmy.ca, but I should ~~not~~.
  
  You miss 100% of the shots that you don't take
  
  Edit: The Canada@lemmy.ca link don't work. What is the proper way to link to a community in lemmy?
- Testing some code syntax highlighting (may or may not work depending on UI being used):
  
  fn blah(a: u32) -> Result { Ok(a*2) }
  
  function blah(a) { return a*2; }
  
  Nested (more backticks on our fence nest lesser backticks inside):
  
``` Example nested ```
- Nor in liftoff 10.9 on iOS
https://kerala.party/c/asklemmy@lemmy.ml

https://lemmy.ml/c/asklemmy
- The only user in this thread who understood the assignment
  
  I mean, this isn't terribly unimportant. There definitely should be an option to view all links to lemmy communities/users through your home instance when linked like this.
  
  Not necessarily on topic for this thread, but still...
- !asklemmy@lemmy.ml
- /c/asklemmy@lemmy.ml
Lemmy spoilers have different syntax compared to reddit:

This is a spoiler hiding some text

We're no strangers to love
You know the rules and so do I (do I)
A full commitment's what I'm thinking of
You wouldn't get this from any other guy
I just wanna tell you how I'm feeling
Gotta make you understand
Never gonna give you up
Never gonna let you down
Never gonna run around and desert you
Never gonna make you cry
Never gonna say goodbye
Never gonna tell a lie and hurt you
- For some reason, spoiler tags don't work on my end. I use Connect.
  
  Same on Thunder.
  
  Working well on Summit!
- @VonReposti
code by using ` (this is escaped)

Example link

Bold

Italic

Quote

List item 1

List item 2

Heading 1

Heading 2

Heading 3

Heading 4

~~Strikethrough~~
![image alt text](image link)

Example:
- it works in thunder just fine
The image markdown also support mp4 as well
Link to custom Emoji
- Wow, this rendered as a gif on my client (Connect). Did you just write it as an emoji?
  
  That makes me realize that a "view raw" or "view code" button would be awesome.
  
  You can Copy Text and get the raw markdown version on Connect
  
  I type : and then the custom emoji name, Lemmy Website Auto completes the markdown for it.
Test
- It works.
Communities:

/c/community

!community@example.com

Users:

@user@example.com

/u/user
- This syntax automatically converted to a link on the web that will open on a users home instance:
  
  /c/community@domain.tld will link to (myinstance.com/c/community@domain.tld)
  
  !community@example.com will link to (myinstance.com/c/community@example.com)
  
  /m/community@domain.tld syntax used by kbin (for magazines). Will link to (myinstance.com/c/community@domain.tld)
  
  /u/community@domain.tld will link to user (myinstance.com/c/community@domain.tld)
  
  This syntax does NOT convert to a link:
  
  @user@example.com
  
  /u/user
  
  /c/community@domain
  
  !community
I'm not going to post here, but try these: https://book.hacktricks.xyz/pentesting-web/xss-cross-site-scripting/xss-in-markdown
Link to a post with a table inside a spoiler

And another good test
@TestingBot_123@lemmy.world
just a random bold italic quote
!syncforlemmy@lemmy.world
Something I haven't seen most apps do (but the webui does) is converting (tm) => (tm)

no clue if there are similar substitutions out there, would probably need to check the code to confirm
This is a test
#i take it back third image in link is NSFW when I copied the code for some reason! It's just rick roll on the actual link though? Sorry, this formatting is still new to me.

Testing from this post (nsfw instance, but sfw post showing markdown for multiple photos)
[ ] test
Nested List:

Level 1

Level 1

Level 2

Level 2

Level 1

Level 1

Level 2

Level 2
https://feddit.uk/post/741059
text [^footnote] embedded.

[^footnote]: footnote text with [^another] embedded footnote with continuation

[^another]: footnote text with continuation

Random more comment after the footnotes
Commenting to save
@ljdawson test
@ljdawson@lemmy.world test
- where did you post that from? It didn't parse. @ljdawson@lemmy.world
  
  Worked for me
https://lemmy.world/u/ljdawson test
https://lemmy.world/post/2008060

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