需要C＃正则表达式替换字符串里的空格

问题描述

使用C＃，我需要一些代码来使用正则表达式用引号字符（|）替换引号内的空格。问题是字符串可能包含多个带引号的表达式，而 我只想要引号内 的空格。

Using C#, I need a some code to use regular expressions to replace spaces inside of quotes with a pipe character (|). problem is that the string could contain multiple quoted expressions and I only want the spaces inside of quotes.

尝试了几件事，但我正在努力处理可变内的可变数字的话，除了别的以外。

I tried a few things but I am struggling with how to handle the variable number of words that could be inside of quotes, amongst other things.

这里有一些例子，输入和所需输出：

Here is some examples of what may be input, and the required output:

word1 word2

- >word1 | word2

"word1 word2"
-> "word1|word2"

word1 word2word3word4 word5

- >word1 | word2word3word4 | word5

"word1 word2" word3 "word4 word5"
-> "word1|word2" word3 "word4|word5"

word1word2 word3

- > word1word2 | word3

word1 "word2 word3"
-> word1 "word2|word3"

任何帮助非常感谢，希望我将了解正则表达式。 / p>

Any help greatly appreciated, and hopefully I will learn about regular expressions.

推荐答案

使用常规expresion查找引号，并使用替换替换空格：

Use a regular expresion to find the quotes, and a plain Replace to replace the spaces:

str = Regex.Replace(str, @"""[^""]+""", m => m.Value.Replace(' ', '|'));

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