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Keybase proof

I hereby claim:

  • I am rainyear on github.
  • I am yusheng ( on keybase.
  • I have a public key ASAkSGe1LXL2CRP8ZzWxzmwzsRxTuUQZwhgZlHaxAZqg9Ao

To claim this, I am signing this object:

rainyear / hammerspoon.init.lua
Last active Mar 7, 2017
View hammerspoon.init.lua
local hyper = {'shift', 'cmd'}
local hyper2 = {'ctrl', 'cmd'}
-- hyper + up maximize the current window
hs.hotkey.bind(hyper, 'up', function()
hs.hotkey.bind(hyper, "Left", function()
local win = hs.window.focusedWindow()
local f = win:frame()
rainyear / ghost_foot.html
Last active Nov 15, 2015 is using ghost, {{ghost_foot}} injection was used to append donate button to every article.
View ghost_foot.html
<script type='tmpl' class='donation'>
<code class="language-javascript">
rainyear / Hspell.hs
Last active Nov 7, 2015
Spell corrector
View Hspell.hs
import Data.Char (toLower)
import qualified Data.Map as Map -- (insertWith, empty, member)
import qualified Data.Set as Set -- (fromList, toList, union, unions)
main :: IO ()
main = do
fileStr <- readFile "big.txt"
let training = words $ toLower <$> fileStr
let knowledge = foldl (\m word -> Map.insertWith (+) word 1 m) Map.empty training
rainyear / miller-rabin.scm
Last active Nov 17, 2017
Miller-Rabin & RSA in Scheme.
View miller-rabin.scm
; Source codes of blog post: ;
; ;
; Scheme runtime: Calysto Scheme ;
;; math procedures
(define (square x) (* x x))
(define (even? x) (= (remainder x 2) 0))
################ Scheme Interpreter in Python
## (c) Peter Norvig, 2010; See
################ Symbol, Procedure, classes
from __future__ import division
import re, sys, StringIO
class Symbol(str): pass
rainyear /
Created Jul 3, 2015
Hand posture detection with OpenCV.
#!/usr/bin/env python
import cv2
import numpy as np
def main():
cap = cv2.VideoCapture(0)
ret, img =
skinMask = HSVBin(img)
rainyear / ang2pix.js
Last active Aug 29, 2015
Visual Angle.
View ang2pix.js
// cal Pix size with given visual angle and screen info.
var scr = {
xpixels: 1024,
ypixels: 768,
width: 360, //mm
height: 270, //mm
var ang2pix = function(screen, angle, distense){
var targetWidth = angle.h * distense / (180 / 3.14);
rainyear / cropBottomByX.m
Last active Aug 29, 2015
processing all jpg images from path <src> , crop <x> pixels from bottom, save to <dest>.
View cropBottomByX.m
function cropBottomByX(src, dest, x)
srcImgs = [dir([src filesep '*.jpg'])];
for i = 1:length(srcImgs)
imgLocation = [src filesep srcImgs(i).name];
img = imread(imgLocation);
[h, w, d] = size(img);
disp(sprintf('Resizing image %s from %d to %d ...\n', srcImgs(i).name, h, h-x));
img2 = img(1:h-x, :, :);
imwrite(img2, [dest filesep srcImgs(i).name]);
rainyear / vimrc
Created Mar 28, 2015
Vim as Golang IDE
View vimrc
" 设置显示行号
set number
" 开启语法高亮功能
syntax enable
" 允许用指定语法高亮配色方案替换默认方案
syntax on
" 自适应不同语言的智能缩进
filetype indent on
" 将制表符扩展为空格
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