I have to extract a substring in xslt 1.0 that is located at the end of a string so I basically need to get the substring from the right.

For example if I have 123456789123, I need to get 89123. Currently, I can use the function substring to get the string from the left. Any idea on how to accomplish this?

You need to use Maths. If you want the left N, and your string is of length L then you start at L-N, and take the next N characters. Get the length using string-length() function and you're sorted.

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