问题描述：

I have a string like this :

{
\"XXX\"       \"XXX\"
\"XXX\"       \"XXX\"
\"XXX\"
{
\"XXX\"       \"XXX\"
\"XXX\"       \"XXX\"
\"XXX\"
{
\"XXX\"       \"XXX\"
}
\"XXX\"
{
\"XXX\"       \"XXX\"
\"XXX\"       \"XXX\"
\"XXX\"       \"XXX\"
\"XXX\"       \"XXX\"
\"XXX\"       \"XXX\"
\"XXX\"       \"XXX\"
\"XXX\"       \"XXX\"
}
\"XXX\"       \"XXX\"
}
\"XXX\"
{
\"XXX\"       \"XXX\"
\"XXX\"
{
\"XXX\"       \"XXX\"
}
\"XXX\"
{
\"XXX\"       \"XXX\"
\"XXX\"       \"XXX\"
\"XXX\"       \"XXX\"
\"XXX\"       \"XXX\"
\"XXX\"       \"XXX\"
\"XXX\"       \"XXX\"
\"XXX\"       \"XXX\"
}
\"XXX\"       \"XXX\"
}
\"XXX\"
{
\"XXX\"       \"XXX\"
\"XXX\"
{
\"XXX\"       \"XXX\"
}
\"XXX\"
{
\"XXX\"       \"XXX\"
\"XXX\"       \"XXX\"
\"XXX\"       \"XXX\"
\"XXX\"       \"XXX\"
\"XXX\"       \"XXX\"
\"XXX\"       \"XXX\"
}
\"XXX\"       \"XXX\"
}
\"XXX\"
{
\"XXX\"       \"XXX\"
\"XXX\"
{
\"XXX\"       \"XXX\"
\"XXX\"       \"XXX\"
\"XXX\"       \"XXX\"
\"XXX\"       \"XXX\"
\"XXX\"       \"XXX\"
}
\"XXX\"       \"XXX\"
}
\"XXX\"
{
\"XXX\"
{
\"XXX\"       \"XXX\"
}
\"XXX\"
{
\"XXX\"       \"XXX\"
\"XXX\"       \"\"
}
\"XXX\"
{
\"XXX\"       \"XXX\"
\"XXX\"       \"\"
}
\"XXX\"
{
\"XXX\"       \"XXX\"
\"XXX\"       \"\"
}
\"XXX\"
{
\"XXX\"       \"XXX\"
\"XXX\"       \"\"
}
\"XXX\"
{
\"XXX\"       \"XXX\"
\"XXX\"       \"\"
}
\"XXX\"
{
\"XXX\"       \"XXX\"
\"XXX\"       \"\"
}
}
}

It looks like JSON, but it isn\'t : it\'s lacking all the commas (\',\') and all the colons (\":\"). I\'m trying to find a way to parse it and turn into a valid JSON string.

My guess is to use the tabulations and the line breaks to find my way in the string, but so far I wasn\'t able to convert it to valid JSON.

I came up with this, which works but I believe is not very efficient or fail safe :

$e = explode( \"
\", $string );
foreach( $e as $k => $l ) {
$next = str_replace( \"\\t\", \'\', $e[ $k + 1 ] );
$isParam = strstr( $l, \"\\\"\\t\\t\\\"\" );
$currentClean = str_replace( \"\\t\", \'\', $l );
if ( $isParam )
$e[ $k ] = str_replace( \"\\\"\\t\\t\\\"\", \'\":\"\', $l );
if ( $isParam && $next != \'}\' )
$e[ $k ] .= \',\';
if ( $currentClean == \'}\' && $next != \'}\' && $next )
$e[ $k ] .= \',\';
if ( preg_match( \'#^\"(.*)\"$#\', $currentClean ) && !$isParam )
$e[ $k ] .= \':\';
}
$json = implode(\"
\", $e);

How to improve this ?

网友观点：

//For the \\\":\\\" before \\\"}\\\" and keys
$alltext = preg_replace(\\\"/(\\\\\"\\w+\\\\\")\\s+(\\{|(\\\\\"\\w*\\\\\"))/\\\", \\\"$1:$2\\\", $alltext);
//For \\\",\\\" at the ends of the values:keys
$alltext = preg_replace(\\\"/(\\\\\"\\w*\\\\\":\\\\\"\\w*\\\\\")(?!\\s+(\\}|\\{))/\\\", \\\"$1$2,\\\", $alltext);
//For the \\\",\\\" at the end of each \\\"}\\\" that has a value after
$alltext = preg_replace(\\\"/(\\})(\\s+\\\\\")/\\\", \\\"$1,$2\\\", $alltext);

// Replace \'\\\"xxx\\\" \\\"xxx\\\"\' by \'\\\"xxx\\\": \\\"xxx\\\",\'
$string = preg_replace(\'/(\\\"[^\\\"]+\\\")\\s+(\\\"[^\\\"]*\\\")/\',\'$1: $2,\',$string);
// Replace \'} \\\"xxx\\\" {\' with \\\"} \\\"xxx\\\": {\\\", accept \\\"}\\\" and \\\"{\\\" for start/end
$string = preg_replace(\'/([{}])(\\s+)(\\\"[^\\\"]+\\\")\\s+([{}])/\',\'$1$2$3:$4\',$string);
// Replace \\\", {\\\" by \\\" {\\\"
$string = preg_replace(\'/,(\\s*[}{])/\',\'$1\',$string);
echo $string;

...
\\\"XXX\\\":{
\\\"XXX\\\": \\\"XXX\\\",
\\\"XXX\\\": \\\"\\\", <-- Wrong!
}
...

JavaScript基础入门知识3

1. BOM对象

浏览器相关的对象。获取浏览器相关的信息，可以设置和修改浏览器属性。

window

浏览器相关的宽高信息

setInterval

setTimeout

clearInterval

clearTimeout

fetch:未来学习ajax的时候可以用到的方法

open:打开一个新的页面

outerHeight: 浏览器的高度

outerWidth: 浏览器的宽度

alert:仅仅只是一个弹框，只有一个确定按钮

comfirm:有确定和取消按钮的弹框，返回值分别为true和false

prompt：这是一个可以让用户输入内容的弹框。（不建议使用）

scrollto:设置滚动条，滚动到什么位置，语法：scrollTo(水平位置，垂直位置)

2. 延迟函数和间隔函数

2.1 延迟函数：setTimeout

延迟一段时间执行某个函数,setTimeout有返回值，这个返回值即是setTimeout的id值。

注意：延迟函数是异步执行的。

语法1：setTimeout(函数对象，延迟多少毫秒执行)

语法2：setTimeout(函数对象，延迟时间，后面的参数皆为函数对象的参数)

清除延迟函数：clearTimeout

语法：clearTimeout(延迟函数的ID)

2.2 间隔函数：setInterval

每隔一段时间执行一次，第一次执行也会延迟。间隔函数也是异步执行函数，会将间隔执行的函数对象，放置到内存的事件队列里，到了时间点，就会从事件队列拿到主线程进行执行，主线程会根据在空闲时间点执行事件。

清除间隔函数：clearInterval

语法：clearInterval(间隔函数的ID)

异步问题案例：