consider implementing SGR 60, 61, 62, 63, 65
@chpe
Submitted by Christian Persch Link to original bug (#794579)
Description
(This is just a braindump of things I found while reading the some CSS specs. )
They are: 60 ideogram underline or right side line 61 ideogram double underline or double line on the right side 62 ideogram overline or left side line 63 ideogram double overline or double line on the left side 65 cancels the effect of the rendition aspects established by parameter values 60 to 64
I think that this is just regular underlines except the position is not just below the baseline but in the position like in CSS text-underline-position: under (the left/right parts apply only to vertical writing, which VTE doesn't support anyway) [1]. If that's right, then implementing these should be easy, and require just 1 bit in VteCellAttr (selecting line position) for under/overline each.
The only terminal emulator that I could find implementing these is RLogin [2].
[1] https://www.w3.org/TR/css-text-decor-3/#text-underline-position [2] https://github.com/kmiya-culti/RLogin
Version: git master