This commit adds an overline glyph which is simply a line drawn at
the top of the cell.
Due to the way that we use a single glyph for the line layer, this
actually adds a handful of combination glyphs for the different
underline, overline and strikethrough possibilities.
It's getting a bit hefty. Adding another similar attribute in
the future (eg: maybe wiggly underlines?) might prove to be too
much for the simple approach we have right now.
```bash
printf "\x1b[53moverline\x1b[0m\n"
```
This allows setting up shortcuts relative to the final tab in
a window, rather than always being relative to the first.
The default assignment for CTRL+SHIFT+9 is now `ActivateTab=-1`
as a convenient way to always reach the last tab.
refs: https://github.com/wez/wezterm/issues/228
We were unconditionally adding the encoded form of the modifier
mask (eg: appending `;1~` to the sequence) and not all apps know
how to interpret that.
refs: https://github.com/wez/wezterm/issues/227
This commit adds support for left/right margins and has been
tested against esctest, with a final status of:
```
309 tests passed, 239 known bugs
```
"known bugs" also includes unimplemented features; we have a
similar degree as iTerm2.
As of this commit, we now report as a vt520ish machine to DA1.
I confess to not having read enough of the relevant docs
to know whether this is totally righteous.
This commit allows distinguishing between left and right alt
modifiers at the window layer. So far only macos provides
this additional information.
Expand the logic that decides whether Alt should emit the
composed key or act as the raw key with the Alt modifier flag
set so that we can set that behavior separately for the left
and right modifiers on systems that support it, and use the
existing config for systems that don't support it.
The default settings for these flags is that Left Alt will
send the uncomposed key + Alt modifier while the Right Alt
will behave more like AltGr (which is typically on the RHS
of the keyboard) and send the composed key.
This gives more flexibility by default and hopefully matches
expectations a bit better.
refs: https://github.com/wez/wezterm/issues/216
This was originally intended to be swept in and dealt with as part of
adopting CSI-u (refs: https://github.com/wez/wezterm/issues/63) but the
default shift-space mapping is super irritating in vim (refs:
https://github.com/wez/wezterm/issues/126) so it got partially walked
back, but as a consequence we accidentally dropped the modifiers from
those keys (refs: https://github.com/wez/wezterm/issues/213 refs:
https://github.com/wez/wezterm/issues/214).
This commit restores the modifiers for that case.
In addition, since we now have a way to plumb configuration directly
into the term crate, this adds a config option to enable CSI-u for those
that want to use it.
