James-E-A

// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/escape#return_value
const R = /(^[0-9a\-zA-Z]|[,-=<>#&!%:;@~'`"])|([\^\$\\\.\*\+\?\(\)\[\]\{\}\|\/])|([\t\f\n\v\r\x20])|((?![\u0000-\u007f])\s)|([\ud800-\udbff](?=$|[^\udc00-\udfff])|(?<=^|[^\ud800-\udbff])[\udc00-\udfff])/g;
const W = { "\u0009": '\\t', "\u000c": '\\f', "\u000a": '\\n', "\u000b": '\\v', "\u000d": '\\r', "\u0020": '\\x20' };

export function escape(s) {
	if (typeof s !== 'string')
		throw new TypeError("input argument must be a string")

	return s.replaceAll(
		R,

James-E-A

<script type="text/javascript">(async () => {
	const currentScript = document.currentScript; // scoped to this IIFE, does not pollute global namespace or vanish on future event loop ticks

	// You are 100% free to do async stuff in this block
	console.info(await 42);
	// ... //

})().then((value) => {if (value) !== undefined console.debug(value);});</script>

James-E-A

/**
 * A nonnegative integer.
 * @typedef {number} NaturalNumber
 */

/**
 * Datatype representing a polynomial as an array of coefficients.
 * e.g. "5X^3 + X + 2" is represented by [2, 1, , 5].
 * e.g. "0" is represented by [].
 * Must have no trailing zeroes. Array slots containing 0 are equivalent to empty (sparse) array slots.

James-E-A

/*
 * Calculate the number of days since the start of the Gregorian calendar.
 * @param {Date} [date] - The reference date. Defaults to the current instant.
 * @param {boolean} [useLocalTime] - Whether to calculate in local time. WARNING: By default, UTC is used; this will, for instance, give a Tuesday result when run at 10pm on a Monday in the United States.
 * @returns {number}
 */
export function gregorianDateInteger(d, useLocalTime) {
	if (d === undefined) d = new Date();
	if (useLocalTime === undefined) useLocalTime = false;

James-E-A

import threading


def _thread_start_immed(*a, **k):
    """Usage:
    
        @_thread_start_immed("my background thread")
        def t(name):
            import time
            time.sleep(3)

James-E-A

const END_OF_FIELD = Symbol('\u001f');
const END_OF_RECORD = Symbol('\u001e');


export async function* csv_iterate(text_stream) {
	// public iterator.

	if (typeof text_stream === 'string')
		text_stream = [text_stream];

James-E-A

#!/usr/bin/env python3

__all__ = ['logical_xor']

def logical_xor(a, b):
    # technically, all of the parentheses on the following line may be removed
    return ((not b) and a) or ((not a) and b)

# correct
assert logical_xor(True, False)

James-E-A

def is_dir_writable(path='.', *, _q=None):
    import multiprocessing as mp
    from queue import Empty
    import tempfile
    if _q is None:
        # caller
        _q = mp.Queue()
        p = mp.Process(
            target=is_dir_writable, # IF YOU RENAME THE FUNCTION ENSURE YOU ALSO RENAME ITS INVOCATION HERE
            args=[path],

James-E-A

import ctypes
from ctypes import GetLastError, WinError, byref, create_unicode_buffer
from uuid import UUID

__all__ = ['wintypes_GUID']


_CLSIDFromString = ctypes.windll.Ole32['CLSIDFromString']
_CLSIDFromString.argtypes = [ctypes.c_wchar_p, ctypes.c_void_p]
_CO_E_CLASSSTRING = ctypes.c_int(0x800401F3).value # nominally positive, but physically negative on most platforms

James-E-A

#!/usr/bin/env python3
from Crypto.Cipher import AES # https://pypi.org/project/pycryptodome/
from Crypto.Hash import SHAKE256

from types import SimpleNamespace


def _demo():
    # DEMO
    from pqc.kem import mceliece6960119f as kemalg # https://pypi.org/project/pypqc/