Hyperlink break into multiple lines not render underline correctly

[kindy]

• Build: 8086
• Commit: 873ebc36

see this video for details:

ghostty-hyperlink-lines.mp4

[kindy]

This seems more like a bug than a question?

[mitchellh]

Its not a bug.

[mitchellh]

This is not a bug. Vim is drawing the URL and is NOT soft-wrapping the line. So it is two lines, not one. Ghostty only unwraps lines that are wrapped. This is the equivalent to typing the following:

http://example
.com

Your browser wouldn't highlight that as one URL because its two lines. This is the same thing happening here.

The solution for programs (and things like neovim do) is to use OSC8 which is conceptually similar to wrapping something in anchor tags:

<a href="...">http://example
.com</a>

Now your browser would highlight the full URL. Terminals are the same (but use OSC8 instead of anchor tags). Ghostty supports OSC8, so I recommend using a vim configuration that also highlights using OSC8. At least in neovim, I find most filetype plugins do this.

[kindy]

I just test it, and seems vim insert ^[[3;1H at end of the first line, instead of \n.

---

cat -v ghostty-test.txt

a41
# See http://zsh.sourceforge.net/Doc/Release/Prompt-Expansion.html#Simple-Prompt-Escapes
z43

stty -a | head -1

speed 9600 baud; 18 rows; 58 columns;

vim -R ghostty-test.txt > ooo-ghost.txt (quit with :qa!<enter>)

cat -v ooo-ghost.txt (copy with |pbcopy)

^[[?1049h^[[>4;2m^[[?1h^[=^[[?2004h^[[?1004h^[[1;18r^[[?12h^[[?12l^[[22;2t^[[22;1t^[[27m^[[23m^[[29m^[[m^[[H^[[2J^[[?25l^[[18;1H"ghostty-test.txt" [readonly] 4L, 98B^[[1;1Ha41^M
# See http://zsh.sourceforge.net/Doc/Release/Prompt-Expanss^[[3;1Hion.html#Simple-Prompt-Escapes^M
z43^M
^M
^[[94m~                                                         ^[[7;1H~                                                         ^[[8;1H~                                                         ^[[9;1H~                                                         ^[[10;1H~                                                         ^[[11;1H~                                                         ^[[12;1H~                                                         ^[[13;1H~                                                         ^[[14;1H~                                                         ^[[15;1H~                                                         ^[[16;1H~                                                         ^[[17;1H~                                                         ^[[1;1H^[[?25h^[[?4m^[[?25l^[[m^[[18;1H^[[K^[[18;1H:qa^[[?25h!^M^[[?25l^[[?2004l^[[>4;m^[[23;2t^[[23;1t^[[18;1H^[[K^[[18;1H^[[?1004l^[[?2004l^[[?1l^[>^[[?1049l^[[?25h^[[>4;m

[kindy]

when running with glfw: zig build -Dapp-runtime=glfw run, underline of multiple line links can render sometime. like this:

ghostty-hyperlink-lines-glfw.mp4