Render artifacts with Unicode 3.2 test page

[helmesjo]

Summary

Pasting the Unicode 3.2 test page into a new scratch buffer causes some odd rendering artifacts probably related to word-wrapping:

# config.toml
theme = "dark_plus"

[editor]
line-number = "absolute"
color-modes = true
cursorline = true
bufferline = 'multiple'

[editor.cursor-shape]
insert = "bar"
normal = "block"
select = "underline"

[editor.soft-wrap]
enable = true

[editor.statusline]
left = [
  "mode",
  "version-control",
  "spinner"
]
center = ["file-name"]
right = [
  "diagnostics",
  "selections",
  "position",
  "file-encoding",
  "file-line-ending",
  "file-type"
]
separator = "│"

[editor.whitespace.render]
space = "all"
tab = "all"
newline = "none"

[editor.file-picker]
hidden = false

[keys.normal]
X = "extend_line_up"
theme = "dark_plus"

[editor]
line-number = "absolute"
color-modes = true
cursorline = true
bufferline = 'multiple'

[editor.cursor-shape]
insert = "bar"
normal = "block"
select = "underline"

[editor.soft-wrap]
enable = true

[editor.statusline]
left = [
  "mode",
  "version-control",
  "spinner"
]
center = ["file-name"]
right = [
  "diagnostics",
  "selections",
  "position",
  "file-encoding",
  "file-line-ending",
  "file-type"
]
separator = "│"

[editor.whitespace.render]
space = "all"
tab = "all"
newline = "none"

[editor.file-picker]
hidden = false

[keys.normal]
X = "extend_line_up"

Reproduction Steps

I tried this:

1. Open a new scratch buffer and paste the content from here.
2. Notice that there are artifacts on the left-hand side when stepping through lines.

Helix log

Nothing logged.

Platform

Windows

Terminal Emulator

cmd

Installation Method

winget install Helix.Helix

Helix Version

helix 23.10 (f6021dd)

[kirawi]

Probably a duplicate of #6012 This issue can't be solved on our end (only worked around) since it's an issue with how terminal emulators approach width IIRC.

[helmesjo]

Yeah that seems to be the case, thanks. I'll close this one.