Module term 

A terminal, hand-rolled on libc.

ratatui is the obvious answer, and adding it to this workspace resolves 35 crates that are not already here — a 30% increase on a tree whose size (117 crates, 5.63 MiB) is a stated property of the product. What it buys over this file is a constraint-solving layout engine and a damage-tracked cell buffer; the TUI here has fixed panes and redraws one screenful per keystroke. So: termios for raw mode, TIOCGWINSZ for the size, poll(2) for input, three sigactions to survive a resize and a kill, ANSI for the rest. libc is already in the tree for statfs.

Unix only, which is the same bet mmap, SIGTERM and the filesystem guard already make.

Structs

Row

One line of the frame, built left to right with its visible width tracked separately from its bytes.

Term

Enums

Key

Parsed 🔒

Constants

BLUE

BOLD

CYAN

DIM

GREEN

MAGENTA

RED

RESET

REV

YELLOW

Statics

ORIG 🔒

The terminal settings as they were before Term::enter.

Functions

bail 🔒 ^⚠

Give the terminal back, then die.

csi 🔒

ok_or_errno 🔒

The termios calls’ contract: 0, or -1 and the reason is in errno.

on_signal 🔒

Install h for sig, without SA_RESTART.

parse 🔒

One key off the front of b, or Parsed::Need if what is there could still grow into a longer sequence.

poll_in 🔒

restore 🔒

Put the terminal back. Idempotent, because Drop, the panic hook and a fatal signal can all reach it and a double panic would otherwise run it twice.

take_one 🔒

winch 🔒 ^⚠

A resize. Nothing to do in the handler — the delivery itself is the message, and it arrives as an EINTR in poll_in.