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set encoding=utf-8
set fileencodings=utf-8

"options
syntax on
set nocompatible
set shiftwidth=2
set tabstop=2
set expandtab
set backspace=2

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# /etc/nginx/sites-available/default
# Default server configuration
server {
    listen 80 default_server;
    listen [::]:80 default_server;

    server_name _;

    return 444;
}

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# create ssl automation
/opt/letsencrypt/certbot-auto certonly --agree-tos --webroot -w /srv/letsencrypt -d example.com -d www.example.com

# wildcard with dns
/opt/letsencrypt/certbot-auto certonly --server https://acme-v02.api.letsencrypt.org/directory --manual --preferred-challenges dns -d *.example.com -d example.com

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# abc
# def
# ijk
# -> abc\ndef\nijk

# linux
sed ':a;N;$!ba;s/\n/\\\\n/g' file

# mac OSX
sed -e ':a' -e 'N' -e '$!ba' -e 's/\n/\\\\n/g' file

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mode_map = {
    "cpp": "c_cpp",
    "java": "java",
    "python":"python",
    "python3": "python",
    "bash": "sh",
    "javascript": "javascript",
    "css": "css",
    "html": "html",
}

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## remove a path from PATH
function removeFromPath() {
    export PATH=$(echo $PATH | sed -E -e "s;:$1;;" -e "s;$1:?;;")
}

## set JAVA env with given version
function setJDK() {
    if [ $# -ne 0 ]; then
        removeFromPath '/System/Library/Frameworks/JavaVM.framework/Home/bin'
        if [ -n "${JAVA_HOME+x}" ]; then

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package main

import (
    "fmt"
    "net/http"
    "github.com/gorilla/mux"
)

func GetExampleHandler(text string) http.HandlerFunc {
    return func(w http.ResponseWriter, r *http.Request) {

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type MockRouter struct {
    mu sync.Mutex
    r *mux.Router
}

func (mr *MockRouter) Swap(r *mux.Router) {
    mr.mu.Lock()
    mr.r = r
    mr.mu.Unlock()
}

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# -*- coding: utf-8 -*-

from Crypto.Cipher import AES
import base64
import re

DEFAULT_KEY = 'anrxvpAAa9x5kEUm'


class AesCbc:

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package parser;
import java.util.Map;
import java.util.HashMap;
import java.lang.reflect.Constructor;

public class ParserFactory {
    private Map<String, Class<?>> classMap;

    public ParserFactory() {
        classMap = new HashMap<>();