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How Can I Easily Extract Text Between Delimiters in a String?

Mary-Kate Olsen
Release: 2025-01-23 00:43:13
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How Can I Easily Extract Text Between Delimiters in a String?

Extract segments between delimiters from a string

Suppose you have a string containing specific delimited content that you wish to extract. For example, given the string:

"super example of string key : text I want to keep - end of my string"

You may need to isolate the part between "key:" and "-". Instead of relying on complex regular expressions, there is an easier way.

Isolate the desired text using the Substring method:

To accomplish this task efficiently, use the Substring method. For example:

<code>    string St = "super example of string key : text I want to keep - end of my string";

    int pFrom = St.IndexOf("key : ") + "key : ".Length;
    int pTo = St.LastIndexOf(" - ");

    string result = St.Substring(pFrom, pTo - pFrom);</code>
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In this code, IndexOf finds the starting position of the desired substring and LastIndexOf finds the ending position. The length of the prefix ("key : ") is added to pFrom to exclude it from the results. The Substring method then isolates the string fragment, providing the text you need to extract.

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