正则表达式匹配的空间，除了URL模式

Question

嗨内部空间我是新来的正则表达式，我试图用这个来追赶空间的垃圾\s{2,}但不包括"url":"https://x.com/a/C25/XPS - Connection - May 2013.docx"内的空间。目前，我有一个场景，url尚未编码，因此它可能包含空格。

示例文字：

"startofjunk  junkjunkjunkjunk","url":"https://x.com/a/C25/XPS - Connection - May 2013.docx","contentsource":"AX","returpath":null,"detailpath":"https://ax.sample.com/Rep>ositories/form.aspx?path=C25/96/99&mode=Read","detailspath2":"samplepath" 

所需的文本：

"startofjunk junkjunkjunkjunk","url":"https://x.com/a/C25/XPS - Connection - May 2013.docx","contentsource":"AX","returpath":null,"detailpath":"https://ax.sample.com/Rep>ositories/form.aspx?path=C25/96/99&mode=Read","detailspath2":"samplepath" 

请帮助。由于

Answer 1

说明

此正则表达式会找到一个空间内的全部替换多个空格，并且将绕过URL部分。在X个空格序列中，第一个空格放置到组1中，作为\1输入到输出，并且忽略其他空格。 URL部分被绕过，因为如果它作为|或语句的一部分遇到，则将其捕获到组2中，然后通过\2替换将其注入到输出中。

正则表达式：(\s)\s*|("url":"[^"]*")，替换：\1\2

源字符串

"startofjunk  junkjunkjunkjunk","url":"https://x.com/a/C25/XPS - Connection - May 2013.docx","contentsource":"AX","returpath":null,"detailpath":"https://ax.sample.com/Rep>ositories/form.aspx?path=C25/96/99&mode=Read","detailspath2":"samplepath" 

这个PHP例子包括PHP为例，简单地表明，正则表达式的作品

<?php 
$sourcestring="your source string"; 
echo preg_replace('/(\s)\s*|("url":"[^"]*")/im','\1',$sourcestring); 
?> 

$sourcestring after replacement: 
"startofjunk junkjunkjunkjunk","url":"https://x.com/a/C25/XPS - Connection - May 2013.docx","contentsource":"AX","returpath":null,"detailpath":"https://ax.sample.com/Rep>ositories/form.aspx?path=C25/96/99&mode=Read","detailspath2":"samplepath" 

Answer 2

使用前瞻来断言您的空间在“url”之前出现。还可以使用一看，后面让你整场比赛是多余的空格：

(?<=\s)\s+(?=.*"url":) 

要去除多余的空间，与空白（即无）更换整场比赛，或者如果您的应用程序语言允许的话，删除的整场比赛。