Do you still want to go with a regex solution? :-)

No, because the rindex approach is likely to be more maintainable than the regex solution.

While execution time can sometimes be critical, mostly it doesn't matter at all. It is generally much more important for code to be correct and maintainable than fast. If fast is a side effect of correct and maintainable code (often it is) then so much the better, but fast comes way down the list during the first stages of designing a coding solution.

Optimising for fewest key strokes only makes sense transmitting to Pluto or beyond

In reply to Re^2: How to remove everything after last occurrence of a string? by GrandFather
in thread How to remove everything after last occurrence of a string? by ovedpo15

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