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Private Mode for In-Band Window Resize Notifications

Terminal emulators typically receive window resize events by installing a signal handler for the SIGWINCH signal. Handling of these signals can create challenges due to their inherently racy properties. Resize events must be synchronized with other application state in a safe manner.

Standard control sequences exist to query the current terminal size from the terminal and receive an in-band control sequence with the window size. However, this system requires polling - which is not ideal. Usually, SIGWINCH handling

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Please see here: contour-terminal/vt-extensions

Synchronized Output

Synchronized output is merely implementing the feature as inspired by iTerm2 synchronized output, except that it's not using the rare DCS but rather the well known SM ? and RM ?. iTerm2 has now also adopted to use the new syntax instead of using DCS.

Semantics

Falsehoods programmers believe about time

This is a compiled list of falsehoods programmers tend to believe about working with time.

Don't re-invent a date time library yourself. If you think you understand everything about time, you're probably doing it wrong.

Falsehoods

There are always 24 hours in a day.
February is always 28 days long.
Any 24-hour period will always begin and end in the same day (or week, or month).

Hyperlinks (a.k.a. HTML-like anchors) in terminal emulators

[ Update 2025-03-24: Commenting is disabled permanently. Previous comments are archived at web.archive.org. ]

Most of the terminal emulators auto-detect when a URL appears onscreen and allow to conveniently open them (e.g. via Ctrl+click or Cmd+click, or the right click menu).

It was, however, not possible until now for arbitrary text to point to URLs, just as on webpages.

THIS GIST WAS MOVED TO TERMSTANDARD/COLORS REPOSITORY.

PLEASE ASK YOUR QUESTIONS OR ADD ANY SUGGESTIONS AS A REPOSITORY ISSUES OR PULL REQUESTS INSTEAD!

	import mmap


	def get_last_lines(path: str, count: int) -> list[str]:
	"""Get count last lines from a file."""
	with open(path, "r+b") as text_file:
	text_mmap = mmap.mmap(text_file.fileno(), 0, mmap.ACCESS_READ)
	position = len(text_mmap)
	while count and (position := text_mmap.rfind(b"\n", 0, position)) != -1:
	count -= 1

	import os
	from collections import deque
	from collections.abc import Iterator, Sequence
	from typing import Final, Protocol


	class SeekableBytesFile(Protocol):
	def seek(self, position: int, whence: int = ..., /) -> int: ...
	def read(self, amount: int, /) -> bytes: ...

	" File: ~/.vimrc
	"
	" Author: Victor I. Afolabi

	syntax enable

	colorscheme desert
	" highlight Normal guibg=none

	" =============================================================================

	# <type>: (If applied, this commit will...) <subject> (Max 50 char)
	# \|<---- Using a Maximum Of 50 Characters ---->\|


	# Explain why this change is being made
	# \|<---- Try To Limit Each Line to a Maximum Of 72 Characters ---->\|

	# Provide links or keys to any relevant tickets, articles or other resources
	# Example: Github issue #23

	# ...

	# This is for what I would consider a standard setup, where TTY's 1 -- 6 are
	# "linux" terminals and TTY's 7+ are reserved for X windows. You should adjust
	# it to your setup, accordingly.
	#
	# ::: Important ::: You must have both fbterm and screen installed and on your
	# path for this to work.

	virtual_terminal="$( tty \| grep -oE ....$ )"