drag
dragstart
dragend
dragover
dragenter
dragleave
drop
The
dragstartevent is fired when the user starts dragging an element or text selection.
MDN的文档说的不错，dragstart只有在element或者选中文字拖放开始的时候触发，也就是拖放文件的时候不会触发。
The
dragendevent is fired when a drag operation is being ended (by releasing a mouse button or hitting the escape key).
尼玛，这没说啊，试过才知道。dragstart和dragend文件拖放是不会触发的。
超时设置小于1s时的bug
http://www.php.net/manual/zh/function.curl-setopt.php#104597
https://github.com/laruence/yar/issues/15#issuecomment-31091428
上面两个网址说的很明显，解决办法就是
curl_setopt($ch, CURLOPT_NOSIGNAL, 1);small标签，word-break: break-all; 在chrome下面正常换行，而在ie下面不起作用
ie下的word-break: break-all; 貌似在block元素上才会起作用，加上display: block; 就可以了。
判断的三种方式：
//
// main.m
// learning
//
// Created by xiaozi on 13-12-8.
// Copyright (c) 2013年 xiaozi. All rights reserved.
//
#import <Foundation/Foundation.h>
int main(int argc, const char * argv[])
{
@autoreleasepool {
NSString* extsStr = @"php,js,py";
NSArray* extsArr = [extsStr componentsSeparatedByString:@","];
// 是否在数组中 {{{
NSPredicate* rule1 = [NSPredicate predicateWithFormat:@"SELF IN %@", extsArr];
BOOL result1 = [rule1 evaluateWithObject:@"txt"];
NSLog(@"%d", result1);
// }}}
// {{{
NSPredicate* rule2 = [NSPredicate predicateWithFormat:@"SELF CONTAINS %@", @"js"];
// 数组包含
BOOL result2 = [rule2 evaluateWithObject:extsArr];
NSLog(@"%d", result2);
// }}}
// 数组过滤
BOOL result3 = [[extsArr filteredArrayUsingPredicate:rule2] count];
NSLog(@"%d", result3);
}
return 0;
}由于taobao提供了rest api，所以这次就不用scrapy了，改用unirest
pip install unirestunirest是异步请求的(多线程)，所以提供一个callback，但是要是有额外的参数需要传入，用全局变量的话会产生问题。
具体的实现可以根据纯真IP数据库的IP段来查询，单台机器抓取的话估计2~3天的样子，下面是单个IP段抓取的实现代码：
# encoding: utf-8
import time, unirest
def pp(extra):
# 其实这种做法和js很像，用一个闭包限制变量的作用域
def p(resp):
print(extra)
# 在这里做数据的处理和储存
return p
def main():
r = ['192.9.201.0', '192.9.201.255'];
unirest.get('http://ip.taobao.com/service/getIpInfo.php', headers = {}, params = {'ip': r[0]}, auth = (), callback = pp(r))
# taobao访问限制：为了保障服务正常运行，每个用户的访问频率需小于10qps。
time.sleep(.5)
if __name__ == '__main__':
main()例子：批量将文字题目生成为图片
artisan command:make QuestionCommand
# app/command/QuestionCommand.php生成php文件之后，首先需要修改name为你的命令
protected $name = 'question:gen';getArguments, getOptions 分别为获取参数和选项的值
getArguments // command arg1 arg2
getOptions // command --opt1=val1 --opt2=val2
fire // 执行命令的时候具体要做的事情较为完整的例子
<?php
use Illuminate\Console\Command;
use Symfony\Component\Console\Input\InputOption;
use Symfony\Component\Console\Input\InputArgument;
class QuestionCommand extends Command {
/**
* The console command name.
*
* @var string
*/
protected $name = 'question:gen';
/**
* The console command description.
*
* @var string
*/
protected $description = '生成question图片';
/**
* Create a new command instance.
*
* @return void
*/
public function __construct()
{
parent::__construct();
}
/**
* Execute the console command.
*
* @return void
*/
public function fire()
{
$questions = $this->option('all') ? Question::all() : Question::whereThumb(0)->get();
// 初始化markdown解析引擎
$ciconia = new Ciconia\Ciconia();
$ciconia->addExtension(new Ciconia\Extension\Gfm\FencedCodeBlockExtension());
$ciconia->addExtension(new Ciconia\Extension\Gfm\TaskListExtension());
$ciconia->addExtension(new Ciconia\Extension\Gfm\InlineStyleExtension());
$ciconia->addExtension(new Ciconia\Extension\Gfm\WhiteSpaceExtension());
$ciconia->addExtension(new Ciconia\Extension\Gfm\TableExtension());
foreach ($questions as $question) {
$item = array(
'id' => $question->id,
'absPath' => public_path('upload/question/' . $question->id . '.png'),
'relPath' => 'question/' . $question->id . '.png',
'question' => $ciconia->render($question->question),
);
Queue::push('code2png', $item, 'code2png');
$this->info('Question ' . $question->id . ' has been added to the queue.');
}
}
/**
* Get the console command arguments.
*
* @return array
*/
protected function getArguments()
{
return array(
// array('example', InputArgument::REQUIRED, 'An example argument.'),
);
}
/**
* Get the console command options.
*
* @return array
*/
protected function getOptions()
{
return array(
array('all', null, InputOption::VALUE_OPTIONAL, '全部重新生成', null),
);
}
}需要在app/start/artisan.php里面添加下面一行才会生效
// 4.0
$artisan->add(new QuestionCommand);
// 4.1
Artisan::add(new QuestionCommand);命令行中这样执行
artisan question:gen --all=1如果要在Controller里面调用，可以这样
Artisan::call('question:gen', array('--all' => 1));再次验证时发现下面的代码有问题，有待修复
很多时候我们的网站的配置都是存在数据库里面的，这样后台也方便配置修改。而Laravel4默认的是将数组直接写在配置文件里面的。
Get Config from database 这个还不错，但是有个问题，就是不支持这样的$register = Config::get('site.register'); var_dump($register['invite']);类似于多级数组的意思
数据库里面直接这样写:
| key | value |
|-----------------|-------|
| register.invite | 1 |我们改造一下
<?php
// app/config/site.php
class DBconfiguratorObject implements ArrayAccess, Serializable {
protected $config = array();
protected $table = null;
private static $_instance = null;
public static function instance($tableName = 'site'){
if(self::$_instance === null){
self::$_instance = new self($tableName);
}
return self::$_instance;
}
private function __construct($tableName = 'site'){
$this->table = DB::table($tableName);
$config = $this->table->lists('value', 'key');
$this->config = array();
foreach ($config as $key => $value) {
array_set($this->config, $key, $value);
}
}
public function offsetGet($key){
// return $this->config[$key];
return array_get($this->config, $key);
}
public function offsetSet($key, $value){
if($this->offsetExists($key)){
$this->table->where('key', $key)->update(array(
'value' => $value
));
} else {
$this->table->insert(array(
'key' => $key,
'value' => $value
));
}
$this->config[$key] = $value;
}
public function offsetExists($key){
return isset($this->config[$key]);
}
public function offsetUnset($key){
unset($this->config[$key]);
$this->table->where('key', $key)->delete();
}
public function serialize(){
return serialize($this->config);
}
public function unserialize($serialized){
$config = unserialize($serialized);
foreach($config as $key => $value){
$this[$key] = $value;
}
}
public function toJson(){
return json_encode($this->config);
}
}
return DBconfiguratorObject::instance();因为用了laravel4的
Response::json(array())->setCallback('callback')然后始终报
The callback name is not valid.
然后单独写了个test.php文件测试该语句在不同的机器上测下来的结果不一样。
var_dump(preg_match('/^[$_\p{L}][$_\p{L}\p{Mn}\p{Mc}\p{Nd}\p{Pc}\x{200C}\x{200D}]*+$/u', 'sad'));本以为是系统哪边的设置的问题，于是将env和php -i的结果都比对了一遍，都一样。后来想到看一下pcre的版本是否一致pcre-config --version，结果都是6.6;最后没办法rmp -qa | grep pcre，好家伙最后的小版本不一样；再然后你懂的，升级了一下pcre就正常了。
首先，yum安装各种需要的东西，比如pidgin，以及后面需要用到的依赖包，其中dbus是用来通信的
yum install pidgin-devel finch screen dbus dbus-devel dbus-x11 libev-devel zlib-devel glibc-devel cmake sqlite-devel libcurl-devel其次，通过git clone pidgin-lwqq来进行编译，详细的见https://github.com/xiehuc/pidgin-lwqq，不过这里需要注意两点：
diff --git a/lib/login.c b/lib/login.c
index 8fe25c0..a1ae11b 100644
--- a/lib/login.c
+++ b/lib/login.c
@@ -141,6 +141,7 @@ static LwqqAsyncEvent* check_need_verify(LwqqClient *lc,const char* appid)
static int request_captcha_back(LwqqHttpRequest* req,LwqqVerifyCode* code)
{
int err = 0;
+ FILE *captcha_fp;
if(req->http_code!=200){
err = -1;
goto done;
@@ -148,6 +149,9 @@ static int request_captcha_back(LwqqHttpRequest* req,LwqqVerifyCode* code)
LwqqClient* lc = req->lc;
code->data = req->response;
code->size = req->resp_len;
+ captcha_fp = fopen("/path/to/qqcaptcha.png", "wb");
+ fwrite(code->data, code->size, 1, captcha_fp);
+ fclose(captcha_fp);
req->response = NULL;
lwqq_call_action(lc,need_verify2)(lc,code);
done:然后，编译好之后，就可以先试试登录了，直接敲入finch试试，目测就能看到登录界面了
选择webqq进行登录，使用快捷键还是很方便的，不会使用可以man一下
下面就是机器人部分了，pidgin支持dbus通信，于是我们可以用利用dbus的接口来监听qq的消息，并作出回应，抑或是主动发出消息。要使用dbus，那么finch需要运行在screen下，这也是前面安装screen的原因，简单点，在命令行里敲入
dbus-launch screen即可启动dbus，并进入screen，然后在screen下运行finch即可。友情提示，某些terminal里，screen下的finch排版混乱，至今没找到解决方案。另外，screen的使用方法可以man一下，你的通信脚本也必须运行在screen里。
dbus通信可以用多个语言实现，c、python、php等等都可以，个人熟悉php，因此使用php进行编写机器人脚本。首先安装php扩展dbus：
pecl install dbus-0.1.1装完记得在php.ini里加入dbus的配置
[dbus]
extension=dbus.so网上能找到很多示例代码，比如PHP官网就有很多example：传送门在此
下面贴个简单自动重复消息的机器人代码
<?php
Robot::getInstance()->run(200);
/**
* class Robot
* @author Baiqiang Dong<qiyuuu@gmail.com>
*/
class Robot {
protected $interface = 'im.pidgin.purple.PurpleInterface';
protected $signals = array(
'ReceivedImMsg',
'ReceivedChatMsg',
);
private static $_instance;
private $_dbus;
private $_proxy;
public static function getInstance() {
if (self::$_instance === null) {
self::$_instance = new self();
}
return self::$_instance;
}
private function __construct() {
//connect to dbus
$this->_dbus = new IDBus(DBus::BUS_SESSION);
$this->_proxy = $this->_dbus->createProxy(
'im.pidgin.purple.PurpleService',
'/im/pidgin/purple/PurpleObject',
'im.pidgin.purple.PurpleInterface'
);
//listen to specified signals
foreach ($this->signals as $signal) {
$this->_dbus->addSignalReceiver(array($this, lcfirst($signal)), $this->interface, $signal);
}
}
public function receivedImMsg($signal) {
$this->responseMessage($signal);
}
public function receivedChatMsg($signal) {
$this->responseMessage($signal);
}
public function responseMessage($signal) {
list($receiver, $sender, $message, $conversation, $flags) = $signal->getData()->getData();
//send what you received
$this->sendMessage($conversation, $message, $sender);
}
public function sendMessage($conversation, $message) {
$proxy = $this->_proxy;
try {
$type = $proxy->PurpleConversationGetType($conversation);
switch ($type) {
//im
case 1:
$im = $proxy->PurpleConvIm($conversation);
$proxy->PurpleConvImSend($im, $message);
break;
//chat
case 2:
$chat = $proxy->PurpleConvChat($conversation);
$proxy->PurpleConvChatSend($chat, $message);
break;
default:
# code...
break;
}
} catch (Exception $e) {
echo $e->getMessage(), "\n";
return false;
}
return true;
}
public function run($time = 1000) {
$this->_dbus->mainLoop($time);
}
}
/**
* extend the DBus class to implement methods like mainLoop and addSignalReceiver
*/
class IDBus extends DBus {
private $_signalReceivers = array();
public function __construct($type) {
parent::__construct($type);
}
public function addSignalReceiver($callback, $interface, $signal) {
if (!is_callable($callback)) {
return;
}
if (!isset($this->_signalReceivers[$interface])) {
$this->addWatch($interface);
}
$this->_signalReceivers[$interface][$signal] = $callback;
}
public function mainLoop($time) {
while (true) {
$signal = parent::waitLoop($time);
$called = false;
if ($signal instanceof DbusSignal) {
foreach ($this->_signalReceivers as $interface=>$callbacks) {
foreach ($callbacks as $method=>$callback) {
if ($signal->matches($interface, $method) && is_callable($callback)) {
$called = call_user_func($callback, $signal);
//break to main loop if callback return true
if ($called) {
break 2;
}
}
}
}
}
}
return $signal;
}
}<video src="http://type.so/usr/uploads/2013/10/1770439643.flv";>codemirror.flv</video>
Editor.on("change", function (Editor, changes) {
while (changes) {
Editor1.replaceRange(changes.text.join("\n"), changes.from, changes.to);
changes = changes.next;
}
});changes.next 不是每次change事件都会有
这里有个矛盾的地方，就是 php是作为Apache的一个模块来运行的，所以一旦重启Apache，在Apache停掉的时候，php调用的shell命令就不会继续执行了；也就是说，只能关闭Apache，不能启动Apache。
我想到的办法就是将命令交给其他程序去运行，于是就想到了at命令。man at只看到at -f [file] now从文件读取，但是我就一个命令，不想再生成一个文件，然后就想到了管道，试一下，成功了。
echo 'sudo service httpd restart' | at now注：at命令，apache用户需要有登录权限(/etc/passwd)
<time datetime="2013-11-03">2013-11-03 修改</time>
不知为何用apache去启动的服务，在apache服务退出的时候会接管apache的端口
效果
代码：
l = text.sourceText.length
ti = time - thisLayer.inPoint
t = ti * effect('speed')('滑块') - effect('speed')('滑块') * effect('startAt')('滑块');
cursor = Math.round(ti % 1) || (t < l && t > 0) ? '|' : '';
substr(0, t) + cursor;直接git clone下来的代码，貌似和glib2的版本不太匹配。于是我是下的他的一个tag，然后编译的。
wget https://github.com/fontforge/fontforge/archive/v20120731-b.tar.gz
./configure --without-libzmq --without-x --without-iconv --disable-python-scripting --disable-python-extension我在编译pdf2htmlex的时候遇到了下面的错误
Linking CXX executable pdf2htmlEX
/usr/local/lib/libfontforge.so: undefined reference to `PyTuple_SetItem'
/usr/local/lib/libfontforge.so: undefined reference to `PyObject_SelfIter'修改一下link.txt就可以了
vim CMakeFiles/pdf2htmlEX.dir/link.txt
# 加上一个编译参数 -lpython2.6查看opcode的扩展安装方法：《编译php vld扩展》
opcode的对照表 opcode的对照表
换行的ascii是10，换算成16进制就是A
<?php
$a = 1;
echo $a + $a++;
echo "\n";
$a = 1;
echo $a + $a + $a++;
echo "\n";</code></pre><p><a href="http://type.so/usr/uploads/2013/10/1563209402.png" title="3.png"><img src="http://type.so/usr/uploads/2013/10/1563209402.png" alt="3.png" /></a></p>