Regex.Replace rufuses与换行符替换

本文介绍了Regex.Replace rufuses与换行符替换的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

您好我写了一个非常简单的C＃程序的命令行，而不是依赖使用的MS Word中搜索C＃正则表达式和替换。问题是，即使正则表达式识别\r和\\\很好，当我尝试使用其中任一来替换字符串，它似乎与转义字符，而不是字符本身来取代它。

[STAThread] 静态无效的主要（字串[] args） {串初始= Clipboard.GetText （）; Console.Write（查找：）; 串找到=到Console.ReadLine（）; Console.Write（替换）; 字符串替换=到Console.ReadLine（）; 串最终= Regex.Replace（初始，查找，替换）; Clipboard.SetText（最后一次）; }

例如，从剪贴板中我输入的字符串将是伍德科克，美国 （在末尾回车换行）。这个模式将是@+ \r，它匹配的罚款，并替换字符串会@\r\\\。这产生字符串Woodcock\r\\\（这是字母R和n仅仅是明确的）。我在做什么错

编辑： Anirudh的回答解决我的问题部分，我相应更新的代码。但是，看来，当我输入\r\\\它也逃脱不知何故，而的ReadLine如果我写字符串替换=\r\\\它实际上取代了以回车换行的字符串。链接到新的问题： C＃的ReadLine逃脱回车/换行符 解决方案

这是因为你使用逐字字符串即 @，这会逃脱\r\\\把它们当作文字，而不是特殊字符！

替换字符串应该是\r\\\ 不会 @\r\\\

要解决的另一个问题。

输出= Regex.Replace（输入\\r？\\\ \，\r\\\）;

Hi I wrote a very simple C# program to use the C# Regex from command line instead of relying on the MS Word search and replace. The problem is that even though the Regex recognizes \r and \n fine, when I try to replace the string with either of these, it seems to replace it with the escaped character instead of the character itself.

[STAThread] static void Main(string[] args) { string initial = Clipboard.GetText(); Console.Write("Find: "); string find = Console.ReadLine(); Console.Write("Replace: "); string replace = Console.ReadLine(); string final = Regex.Replace(initial, find, replace); Clipboard.SetText(final); }

For example, my input string from the clipboard would be "Woodcock, american" (with a carriage return-newline at the end). the pattern would be @",.+\r", which matches fine, and the replacement string would be @"\r\n". This produces the string "Woodcock\r\n" (which are the letters r and n just to be clear). What am I doing wrong?

edit: Anirudh's answer solved my problem partially and I updated the code accordingly. However, it seems that when I input "\r\n" to the ReadLine it also escapes somehow, whereas if I write string replace = "\r\n" it actually replaces the string with a carriage return-newline. Link to new question : C# ReadLine escapes carriage return/newline?

解决方案

This is because you are using verbatim string i.e @"" which would escape \r\n treating them as literals and not special characters!

The replacement string should be "\r\n" NOT @"\r\n"

To solve your other problem

Output=Regex.Replace(input,"\\r?\\n","\r\n");