Question

I am not very good in regex so I’m looking for help. I need to fetch content between . and {.

Example:

  .aaa  { }
  .bbb {}
   ccc {}
   ddd {}
   eee {}

I.e. aaa and bbb in a string. This data can change so I want to use a regex for this. Thanks.

Spaces are allowed and new lines are allowed. This is a simple text file.

Answer 1

(?<=\.)[^{]*(?=\{)

will match everything between . and {.

Explanation:

(?<=\.) asserts that the preceding character is a dot.
[^{]* matches zero or more characters, anything except {.
(?=\{) asserts that the following character is a {.

To iterate over all matches in a string (C#):

Regex regexObj = new Regex(@"(?<=\.)[^{]*(?=\{)");
Match matchResults = regexObj.Match(subjectString);
while (matchResults.Success) {
    // matched text: matchResults.Value
    // match start: matchResults.Index
    // match length: matchResults.Length
    matchResults = matchResults.NextMatch();
}