D. Bohdan dbohdan

A tiny introduction to regular expressions in Python

Import the module: import re
Basic match: re.search(r'cat', 'concatenate') → finds 'cat' anywhere.
Full match: re.fullmatch(r'cat', 'cat') → must match the entire string.
Find all: re.findall(r'\d+', 'a1b22c333') → ['1', '22', '333']
Replace: re.sub(r'\s+', ' ', 'too many spaces') → 'too many spaces'
Character classes:

\d digits, \w word chars, \s whitespace

Claude 3.5 Sonnet

1. User

Are you familiar with gemtext, the markup format? Please describe it.

1. Claude

Yes, I'm familiar with gemtext, the markup format. Gemtext is a lightweight markup language designed for use in the Gemini protocol, which is an alternative to HTTP for serving content on the internet.

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

	# My extra-keys.

	extra-keys = [ \
	[ \
	{key: ESC, popup: {macro: "CTRL b d", display: DET}}, \
	{key: "/", popup: BACKSLASH}, \
	{key: -, popup: KEYBOARD}, \
	{key: HOME, display: HOM}, \
	UP, \
	END, \

	#!/usr/bin/env tclsh
	package require fileutil

	namespace eval ::decoder {
	# Allow us to use +, -, *, /, etc. as commands outside of the [expr] DSL.
	namespace path ::tcl::mathop
	}

	proc ::decoder::decode-file {filename} {
	# Read the entire file into memory as binary. [::fileutil::cat] runs the

	#!/usr/bin/env tclsh

	package require sqlite3
	package require fileutil

	sqlite3 db :memory:
	db eval {CREATE TABLE grades(name TEXT PRIMARY KEY, grade TEXT)}

	foreach {name grade} [::fileutil::cat grades.txt] {
	if {![regexp {[A-F][+-]?} $grade]} {

	#!/bin/sh
	set -e
	# Repo info: https://lists.fedoraproject.org/pipermail/fedora-mono/2013-November/000466.html
	curl http://download.opensuse.org/repositories/home:/tpokorra:/mono/Fedora_21/home:tpokorra:mono.repo \| sudo tee /etc/yum.repos.d/mono.repo
	sudo dnf install -y mono-opt mono-opt-devel
	git clone https://github.com/fsharp/fsharp
	cd fsharp
	export PATH=$PATH:/opt/mono/bin
	export PKG_CONFIG_PATH=/opt/mono/lib/pkgconfig

	ranger-cd() {
	tempfile=$(mktemp)
	ranger --choosedir="$tempfile" "${@:-$(pwd)}" < $TTY
	test -f "$tempfile" &&
	if [ "$(cat -- "$tempfile")" != "$(echo -n `pwd`)" ]; then
	cd -- "$(cat "$tempfile")"
	fi
	rm -f -- "$tempfile"
	}