poshboytl

# 这个函数在做什么？ 你觉得它为什么要这么做？
def compare(a, b)
  return false if a.blank? || b.blank? || a.bytesize != b.bytesize
  l = a.unpack "C#{a.bytesize}"

  res = 0
  b.each_byte { |byte| res |= byte ^ l.shift }
  res == 0
end

poshboytl

# In Ruby we can easily use flatten method: [[1,2,[3]],4].flatten #=> [1,2,3,4] to do this work.
# I guess it requires me to implement it myself.
module Enumerable
  def my_flatten
    Enumerator.new do |yielder|
      each do |ele|
        if ele.is_a?(Enumerable)
          ele.my_flatten.each do |sub|
            yielder.yield(sub)
          end

poshboytl

Setting Up Clojure on OS X

I spent a lot of time trying to find a pretty optimal (for me) setup for Clojure… at the same time I was trying to dive in and learn it. This is never optimal; you shouldn't be fighting the environment while trying to learn something.

I feel like I went through a lot of pain searching Google, StackOverflow, blogs, and other sites for random tidbits of information and instructions.

This is a comprehensive "what I learned and what I ended up doing" that will hopefully be of use to others and act as a journal for myself if I ever have to do it again. I want to be very step-by-step and explain what's happening (and why) at each step.

Step 1: Getting Clojure (1.3)

poshboytl

# first install erlang using the R13b04 formula

brew install https://github.com/mxcl/homebrew/raw/810d52f4a386ea9e2b837030120ffd69cad73722/Library/Formula/erlang.rb

# now you are free to install riak

brew install riak

poshboytl

#>>lang=cf

@Factory = Factory = {}

ids = {}
sequences = {}
sequence = (name, callback) -> sequences[name] = callback

define = (name, defaults = {}) ->
  Factory[name] = (attrs = {}) ->

poshboytl

Request summary
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Parsed lines:        389                   
Skipped lines:       0                     
Parsed requests:     122                   
Skipped requests:    0                     
Warnings:            teaser_check_failed: 1

First request:       2012-05-14 15:44:03

poshboytl

<div class="post">
  <time class="timeago" datetime="2012-07-18T07:51:50Z">
    about 8 hours ago
  </time>
</div>

<div class="comment">
  <time class="timeago" datetime="2012-07-18T15:50:50Z">
    about 1 minute ago
  </time>

poshboytl

 time_ago_in_words(item.created_at)

poshboytl

$.subscribe = (event, handle) ->
 if not o[event]
   o[event] = []

 o[event].push handle
 true

$.unsubscribe = (event) ->
 if o[event]
   delete o[event]

poshboytl

# Track the status and trigger buid for hudson CI.
#
# ci list all/projects - list all the projects on Hudson
# ci status <project name> - see a project's status
# ci build <project name> - triger a build on hudson

Http = require 'http'
QS   = require 'querystring'

module.exports = (robot) ->