Regex to find the word inmmediately after a set of words using regex

user_7412111 0
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I want to find the string right after a set of words using regex.

For example, if the words are "these" and "the",

  1. thesePeople -> People

  2. theApple -> Apple

Is it possible?

The main issue here is "the" is a substring of "these". I have read this question and made my attempt:

@"(?<=the|these)\w+"

But this regex gives "sePeople" to me for the first case, and I cannot go further. Can anyone help?

regex c#
2 Answers

You can use this regex to get every character after the or these:

the(se){0,1}(\w+)

The is always matched. If 'se' is also present, it is matched by the first capture group. Everything afterwards is then matched by the second capture group.

With this one you can also capture words that are not preceeded by the or these:

(?>the(?>se){0,1}){0,1}(\w+)
user_101065180

If all your words are formatted as above this ([A-Z]\w+) simple regex would work:

string[] words = new string[]{"thesePeople", "theApple"};
foreach(string word in words)
    Console.WriteLine(Regex.Match(word, @"[A-Z]\w+", RegexOptions.None).Groups[0].Value);

Outputs:

People

Apple

https://dotnetfiddle.net/aevqlT

user_20272320
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