miku

package main

import (
	"io"
	"log"
	"mime/multipart"
	"net/http"
	"os"
	"path/filepath"
	"runtime"

miku

package main

import (
	"bufio"
	"fmt"
	"io"
	"io/ioutil"
	"log"
	"net/http"
	"sync"

miku

// Pipe creates a synchronous in-memory pipe.
// It can be used to connect code expecting an io.Reader
// with code expecting an io.Writer.
// Reads on one end are matched with writes on the other,
// copying data directly between the two; there is no internal buffering.
// It is safe to call Read and Write in parallel with each other or with
// Close. Close will complete once pending I/O is done. Parallel calls to
// Read, and parallel calls to Write, are also safe:
// the individual calls will be gated sequentially.

miku

# Add field
echo '{"hello": "world"}' | jq --arg foo bar '. + {foo: $foo}'
# {
#   "hello": "world",
#   "foo": "bar"
# }

# Override field value
echo '{"hello": "world"}' | jq --arg foo bar '. + {hello: $foo}'
{

miku

#!/usr/bin/env python
"""
xlsx2tsv  filename.xlsx  [sheet number or name]

Parse a .xlsx (Excel OOXML, which is not OpenOffice) into tab-separated values.
If it has multiple sheets, need to give a sheet number or name.
Outputs honest-to-goodness tsv, no quoting or embedded \\n\\r\\t.

One reason I wrote this is because Mac Excel 2008 export to csv or tsv messes
up encodings, converting everything to something that's not utf8 (macroman

miku

# Greatest common divisor of more than 2 numbers.  Am I terrible for doing it this way?

def gcd(*numbers):
    """Return the greatest common divisor of the given integers"""
    from fractions import gcd
    return reduce(gcd, numbers)

# Least common multiple is not in standard libraries? It's in gmpy, but this is simple enough:

def lcm(*numbers):

miku

OS X Screencast to animated GIF

This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.

Instructions

To capture the video (filesize: 19MB), using the free "QuickTime Player" application:

miku

#!/bin/sh
## Information
## http://carlo-hamalainen.net/blog/2007/12/11/installing-minion-pro-fonts/
## http://www.ctan.org/tex-archive/fonts/mnsymbol/

## 0: Install
##   http://www.lcdf.org/type/
## I used --without-kpathsea to configure (with MacTeX 2011):
##
## ./configure --without-kpathsea

miku

#System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

##Basic Steps

1. Clarify and agree on the scope of the system

• User cases (description of sequences of events that, taken together, lead to a system doing something useful)
  • Who is going to use it?
  • How are they going to use it?

miku

package trie

import (
	"container/vector"
	"sort"
)

// A 'set' structure, that can hold []byte objects.
// For any one []byte instance, it is either in the set or not.
type Trie struct {