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regex find first occurance beginning from end of the line

I have this string

JavaScript

How would I go on about matching from the last occurance of start to the end of the line? I tried to do this with a negative lookahead but I would always get the first occurance: (?!$)\nstart[sS]*?$ Expecting match to be characters: 164-219

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Answer

You can use

JavaScript

See the regex demo.

Details:

  • (?ms) – the . matches newlines now and the ^ / $ anchors now match start/end of any line respectively
  • ^ – start of a line
  • start – a fixed word
  • $ – end of a line
  • (?!.*^start$) – a negative lookahead that fails the match if there are any zero or more chars as many as possible followed with start as a whole line
  • .* – the rest of the string.
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