Add TUI (text-based user interface) for GHCi debugger
GDB has a really nice TUI mode: https://upload.wikimedia.org/wikipedia/commons/4/47/GDB_TUI.png
It's a curses interface which highlights the line number you're on, and also shows the surrounding lines.
GHCi currently allows stepping through with the :step command, which displays line and column numbers. It would be nice to have some visual indication along with these numbers.
Trac metadata
| Trac field | Value |
|---|---|
| Version | 8.0.1 |
| Type | FeatureRequest |
| TypeOfFailure | OtherFailure |
| Priority | low |
| Resolution | Unresolved |
| Component | GHCi |
| Test case | |
| Differential revisions | |
| BlockedBy | |
| Related | |
| Blocking | |
| CC | |
| Operating system | |
| Architecture |