"Extracting regular expressions between the penultimate and ultimate characters

I'm struggling with a simple regex question. I want to extract text between two specific characters: - and ~

Here's my string:

Champions tour - To Win1 - To Win2 ~JIM FURYK

Currently, when I use this regex pattern: \-([^)]+\~), it matches the following:

To Win1 - To Win2 ~

However, I actually need this result:

To Win2 ~JIM FURYK

Is there a way to achieve this using regex?

You can find my regex pattern here: https://regex101.com/r/fJBLXb/1/

Answer №1

To prevent matching, simply insert a dash: \-([^-)]+\~)

Answer №2

The regex \-([^)]+\~) in your code matches the first occurrence of a hyphen - followed by one or more characters that are not a closing parenthesis ), and then a tilde ~. This pattern does not stop at just one hyphen, but can match multiple hyphens in a row.

If you want to match the value after the last hyphen, you can use the following regex:

[^\s-][^-]*$

You can test this regex with the help of the regex demo and the visual representation in the regex graph. Here are the details of the regex:

  • [^\s-] - a character that is not a whitespace or a hyphen
  • [^-]* - zero or more characters that are not a hyphen
  • $ - end of the string

Check out the JavaScript example below for a demonstration:

const text = 'Champions tour - To Win1 - To Win2 ~JIM FURYK';
const match = text.match(/[^\s-][^-]*$/);
if (match) {
    console.log(match[0]);
}

Answer №3

To extract specific content, you can apply the match method in this way:

var input = "Champions tour - To Win1 - To Win2 ~JIM FURYK";
var output = input.match(/- ([^-]+~.*)$/)[1];
console.log(output);

The regular expression used in the example above is designed to find:

-          a dash
[ ]        a space
(          start capture
    [^-]+  match content up to the next dash
    ~      followed by a tilde
    .*     and then any remaining characters
)          end capture
$          end of the line

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