timepp’s gists

timepp / cmdline.ts

Created October 22, 2024 04:12

A pattern to handle command line arguments + config file uniformly, in a type-safe way

	import { parseArgs } from "jsr:@std/cli/parse-args"

	// Define the option names, their default values, and (implicitly) their types, using a DRY (dont repeat yourself) way
	// The option name itself will be used as the command line switch, and the keys in config json file
	// This object is also used to enumerate all options
	// Supported type: number, string, boolean, string array
	const defaultConfig = {
	area: 'Recording',
	steps: ['ocv', 'classify', 'excel'] as 'ocv'\|'classify'\|'excel'[],
	startDate: '',

timepp / geo.ts

Last active March 13, 2024 13:26

get shortest path between 2 points on a cube surface

	export type V3D = [number, number, number]
	export type V2D = [number, number]

	// degree should be multiply of 90
	// axis: 0 = x, 1 = y, 2 = z
	function rotatePoint(point:V3D, axis: number, degree: number) : V3D {
	const [x, y, z] = point
	const d = (degree % 360 + 360) % 360 // 0, 90, 180, 270
	const s = d === 90? 1 : (d === 270? -1 : 0)
	const c = d === 0? 1 : (d === 180? -1 : 0)

timepp / gist:d9fd86ce405ab08ff9f4c11dc581af43

Created January 15, 2018 04:54

v8

	ae29937 Add gn flag to control mitigations for untrusted code
	6b30393 [turbofan] Kill transition-kind source map in load elimination.
	48d436b [test] Add "trusted" testing variant to a subset of bots
	bbcdb1e Update V8 DEPS.
	055aa9b Beautify help output of flag names
	05fe364 [wasm] Fix memory size dcheck in WasmContext
	c22737a [turbofan] Make dangerous bitcasts effectful.
	a97298b Use --untrusted-code-mitigations flag also for JS
	2b4cc83 [builtins] Port EnqueueMicrotask to CSA.
	204441b [wasm] Make some fields const in WasmGraphBuilder

timepp / gist:8f47e76846478becf7875afa8c490f0a

Created November 2, 2017 09:05

disable multidex

	--keep @*.MainDex class {
	- *;
	-}
	-
	-keepclasseswithmembers class * {
	public static ** asInterface(android.os.IBinder);
	}

	-# Required when code coverage is enabled.
	--keep class com.vladium.** {

timepp / crc32.h

Created February 16, 2017 11:39

simplest crc32 c++ implementation

	#pragma once

	#include <stdint.h>

	struct crc32
	{
	static void generate_table(uint32_t(&table)[256])
	{
	uint32_t polynomial = 0xEDB88320;
	for (uint32_t i = 0; i < 256; i++)

timepp / dump_doc_headings.js

Last active August 9, 2016 07:18

get word document headings

	function GetWordOutline(docfilename) {
	/** Get word document outlines
	* @tag dev
	*
	* @param {filename} docfilename - .doc(x) file
	*
	*/

	var word = new ActiveXObject("Word.Application");
	var doc = word.Documents.Open(docfilename, false, true);

timepp / right_click_open_with_firefox.el

Created June 3, 2016 09:36

	; 这个snippet实现在EMACS中左键点击用缺省浏览器打开，右键点击用FIREFOX打开。

	; 先要把org mode的右键功能禁用。(注意org mode 的mouse-3跟mouse-1并不一样，看你能否接受）
	(add-hook 'org-mode-hook
	(lambda () (org-defkey org-mouse-map [mouse-3] nil)))

	; 建一个function绑定到mouse-3
	(add-to-list 'exec-path "c:/Program Files (x86)/Mozilla Firefox/")
	(defun browse-url-at-mouse-with-firefox (event)
	"browse the url with firefox"

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