查找所有出现的模式，无论它们是否重叠 [英] Find all occurrences of a pattern whether they overlap or not

问题描述

我的方法中有以下代码段:

I have this snippet in my method:

MatchCollection words = Regex.Matches("dog cat fun toy", @"\w\w\w.\w?");
foreach (Match match in words)
{
    Console.WriteLine(match);
}

我希望看到这样的东西:

I expected to see something like this:

狗c
猫f
有趣的

dog c
cat f
fun t

但是程序提出了这样的建议:

But program came up with just that:

狗c
有趣的

dog c
fun t

据我所知，它跳过了第二次出现，因为它的一部分在上一次出现中.但是我仍然想看到它.我应该如何纠正我的代码段?

As I understood, it skipped second occurrence because part of it was in previous occurrence. But I still want to see it. How should I correct my snippet?

推荐答案

您可以尝试类似的事情

var regX = new Regex(@"\w\w\w.\w?");
string pattern = "dog cat fun toy";

int i = 0;
while (i < pattern.Length)
{
    var m = regX.Match(pattern, i);
    if (!m.Success) break;

    Console.WriteLine(m.Value);
    i = m.Index + 1;
}

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