jagt

# Simple LL(1) lexer and parser for a random data structure
# Based on description on book Language Implementation Patterns
class Lexer(object):
    WS, NAME, STRING, NUM, LBRACK, RBRACK, LBRACE, RBRACE, COMMA, EQUAL, COMMENT,END = range(12);
    EOF = '' # StringIO gives '' when nothing to read
    def __init__(self, inio):
        self.inio = inio
        self.consume()

    def consume(self):

jagt

# LR Parser using PLY
from sys import exit
import ply.lex as lex
import ply.yacc as yacc
from pprint import pprint

tokens = (
    'NAME',
    'STRING',
    'NUM',

jagt

# PEG parser using parsimonious
from parsimonious.grammar import Grammar
from pprint import pprint

# MUST USE " - double quote in regex literal or gave very strange error messagas 
# comment handling seems very difficult...
grammar = Grammar(
    '''
    record = name "=" value
    name = _ ~"\w+" _

jagt

# simple mocking rest api with file based storage
import json
from datetime import datetime, timedelta
from time import mktime
from bottle import *

tabs = ('users', 'biddings', 'auctions')
for tab in tabs:
    globals()[tab] = []

jagt

The scenario:

• We are writing a digital textbook-reading app.
• Most of the time you have a "basic" license for your textbook, but one (and only one) of your computers can request an "enhanced" license.
• You can only print from the computer with the enhanced license.

The problem statement:

jagt

Roguelike 到底是啥

讲讲 Roguelike 相关知识

最后更新 2013.5.28

引言

如果你是一位资深游戏玩家，那么最近你肯定在哪里看到过 Roguelike 这个词。Roguelike 这个古老的游戏类型现在又变得很潮流，其中各种要素都在不断的被新游戏借鉴。作为一名就是比你有更多空余时间的高玩，我想在这里介绍一下我了解的 Roguelike 相关的东西。文章很长，但应该会比较有意思。

jagt

# http://www.reddit.com/r/dailyprogrammer/comments/1g7gyi/061213_challenge_128_intermediate_covering/
# attemp to use scipy.optimize to do this
import numpy as np
from StringIO import StringIO
from scipy.optimize import minimize

def solve(s):
    f = StringIO(s)
    data = np.loadtxt(f, dtype=np.uint8, skiprows=1)
    n = data.shape[0]

jagt

#include <cstddef>
#include <iostream>
#include <string>
#include <functional>
#include <cassert>
using namespace std;

template<class T>
class HashMap
{

jagt

#include <cassert>
#include <iostream>
#include <map>
#include <string>
using namespace std;

template<class K, class V>
class cache
{
private:

jagt

#include <iostream>
using namespace std;

template<class T>
class Smart
{
private:
        struct Body
        {
                T *ptr;