rndme’s gists

rndme / cssformat.js

Created December 5, 2025 05:50

css parser formatter

	// dan's naive css formatter for editors
	// reliably parses and formats css using browser's CSS engine:
	// sorts properties in rules, removes property repeats (and fallbacks), removes vendor-specific syntax, and removes comments.

	// punctuationReplacements are executed while quoted strings are removed, making rule content predictable

	////////////////////
	// DOES NOT SUPPORT NESTED RULES - MAINLY TO FORMAT SNIPPETS IN A TEXT EDITOR - NOT PRODUCTION MACHINERY!!!!
	////////////////////

rndme / on.js

Last active November 20, 2025 06:29

put functions as event handlers in tagged template strings

	// a function wrap that lets you put functions as event handlers in template strings, allowing closure w/ event code
	// returns an html event=uid into the string template, then soon later swaps for the actual passed function

	function on(string) { // tag template function to bind local variables in templated html
	let values = [...arguments].slice(1);
	values = values.map(function(expression) {
	if(typeof expression != "function") return expression;
	let id = "on_" + Math.random().toString(36).slice(-6),
	evtName = expression.toString().split("=")[0].trim();

rndme / on.js

Last active November 12, 2025 18:20

template string function embed for html event handlers

	//a function wrap that lets you put functions as event handlers in template strings, allowing closure w/ event code
	// returns an html event dec = uid into the string template, then soon later swaps for the actual passed function

	(function(){ // non-global scope

	function someLocal(){ alert(123); }

	function on(evtName, f){
	var id = Math.random().toString(36).slice(-6);
	setTimeout(x=>{

rndme / toSource.js

Created October 31, 2025 01:40

	function toSource(o){ // quick and dirty object literals w/ methods. good for refactoring.
	var old = Function.prototype.toJSON;
	Function.prototype.toJSON = function () {
	return "#>"+this.toString()+"<#";
	};
	var s = JSON.stringify(o, null, "\t");
	s=s.replace(/"#>([\w\W]+?)<#"/g, (a,b)=>eval('"'+b+'"'));
	Function.prototype.toJSON = old;
	return s;
	}

rndme / expr_parser.js

Created April 3, 2025 05:49

simple parser stack: tokenizer, ast builder, and evaluator for basic arithmetic expressions

	function tokenize(s) { // OPS TERMS
	return s.match(/([+*\-\/])\|([\d\.]+)/g).map(function Token(t, i) {
	return {
	token: t,
	type: isFinite(t) ? "num" : "op",
	index: i,
	value: isFinite(t) ? +t : "-+*\/".indexOf(t), // data value/op priority
	};
	});
	}//end tokenize()

rndme / safejschars.js

Created May 26, 2024 20:55

"☺☻♥♦♣♠•◘○◙♂♀♪♫☼►◄↕‼¶§▬↨↑↓→←∟↔▲▼ !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~⌂ÇüéâäàåçêëèïîìÄÅÉæÆôöòûùÿÖÜ¢£¥₧ƒáíóúñÑªº¿⌐¬½¼¡«»░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀αßΓπΣσµτΦΘΩδ∞φε∩≡±≥≤⌠⌡÷≈°∙·√ⁿ²■"

rndme / ImmutableArray.js

Created April 17, 2024 07:35

creates real genuine Arrays that are immutable but "polyfill" mutating methods

	// ccby@dandavis

	function ImmutableArray(){

	function odp(k,v){ Object.defineProperty(r,k,{value:v}); }

	let r = [...arguments];
	if(r.length===1 && Array.isArray(r[0])) r = r[0];

	odp("push", function(){return ImmutableArray(r.concat(...arguments));});

rndme / odp.js

Last active April 12, 2024 02:59

tiny getter/setter helper for observables, polyfilling, deprecation, interfacing, etc

	function odp(obj, get, set, isHidden){
	Object.defineProperty(obj, /^\w+/.exec(get), {get, set, enumerable: !isHidden});
	return odp.bind(this, obj);
	}

	// example usage in a class
	class Ohm {
	constructor(V, I){
	odp(this, _=>Ohm)
	( v=>V, _=>V=_ )

rndme / minimal observable.js

Last active April 12, 2024 02:14

	function Ohm(v, i, _){
	(_=(k, get, set) => Object.defineProperty(this, k, {get, set, enumerable: 1}) && _)
	("v", _=>v, x=>v=x)
	("i", _=>i, x=>i=x)
	("w", _=>v*i, x=>i=x/v)
	("r", _=>v/i, x=>i=v/x);
	}

rndme / sha1.min.js

Created January 25, 2024 04:54

	/*
	* A JavaScript implementation of the Secure Hash Algorithm, SHA-1, as defined
	* in FIPS 180-1
	* Version 2.2 Copyright Paul Johnston 2000 - 2009.
	* Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
	* Distributed under the BSD License
	* See http://pajhome.org.uk/crypt/md5 for details.
	*/

	// smooooshed by dandavis 2024. tested in jscript5.5

dandavis rndme