DeltaChat fails to Display a Headline and an URL/URI (removes underscores). That breask a click on the URL

[winspool]

• Operating System (Linux/Mac/Windows/iOS/Android): X86-64-linux
• Delta Chat Version: 1.36.4 and 1.37.1
• Expected behavior:
  • An URL, which i send must not be changed, when displayed:
  • An underscore in an URL/URI is never a marker for italic text
• Actual behavior:
  • The Display of a Headline and an URL in a post is changed in the Desktop App.
  • Receiving in DeltaChat 1.36.5-Android is correct.
  • Sending the same Mail from the Android App is correctly displayed in the Android App,
    but the Display in the Desktop App is also broken.
• Steps to reproduce the problem:
• I want to send:
  • the Headline: AM_CONDITIONAL
  • and the URL https://www.gnu.org/software/automake/manual/html_node/Usage-of-Conditionals.html
  • DeltaChat Desktop uses the underscore in the Headline and the underscore in the URL as an "Italic text" marker and removes both underscore. That breaks the Headline and the URL.
  • The URL is now broken: ends at "/html" (the location before the underscore)
  • RAW Message Text:

AM_CONDITIONAL

https://www.gnu.org/software/automake/manual/html_node/Usage-of-Conditionals.html

• Screenshots:

  • 3 Messages send with 1.36.4, last message send with 1.37.1
    

• Logs:

[Simon-Laux]

turn off markdown, it is experimental for a reason, but thanks for reporting anyway.

Still strange, isn't it the same link in all 4 messages? Ah it's from the text above...

we should probably just remove _ from our markdown flavour: deltachat/message-parser#23

[winspool]

turn off markdown, it is experimental for a reason, but thanks for reporting anyway.

Thanks, Deactivated. Display is now correct.
Didn't remember, that is was active

Still strange, isn't it the same link in all 4 messages? Ah it's from the text above...

• 1: As i needed it -> broken
• 2: Tried with quotation marks -> broken
• 3: Straight link, to remember it -> works
• -: Updated App from 1.36.4 to 1.37.1
• 4: Tried again with 1.37.1 -> broken
• 5: (after the screenshoot): Sending the text from the Android app -> broken

we should probably just remove _ from our markdown flavour: deltachat/message-parser#23

That's probably the best fix.

Allow an underscore as italic marker only at the start/end of a word or
ignoring an underscore, when the world is "All Uppercase"
would still fail, when sending a text like this: STDC_VERSION >= 202311L
(Even github markdown kills the underscores hereand outputs "STDC_VERSION" in bold)

__STDC_VERSION__  >= 202311L

Ignoring an underscore in an URL would at least avoid breaking an URL.

[Simon-Laux]

it is tracked and discussed in deltachat/message-parser#23, I closed it here, if you come across this issue please comment over there and disable the experimental markdown feature as a quick fix.