Enter a C EOF character in Mac Terminal in the right way.

最近给博客匆匆换了主题，顺便打理一下这个荒废了很长一段时间的博客，重新投入使用。

Have fun with my terminal.app, update colour theme and fonts. Add configurations in zsh and enable powerlevel9k.

最近用词典比较多，而 Mac 自带词典不得不说非常好用，还能自己编译、安装一些第三方的词典。稍有遗憾的是，自带词典的字体目前（Mojave）不能任意修改，需要临时关闭 SIP (System Integrity Protection, 系统完整性保护) 才能添加自定义 CSS。

In JavaScript, a callback is a function that is passed as an argument to another function and is invoked with the result when the operation completes. In functional programming, this way of propagating the result is called continuation-passing style (CPS). It simply indicates that a result is propagated by passing it to another function (the callback), instead of directly returning it to the caller.