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| PerlMonks |
Answer: How do I delete the last instance of a word from a string? |
| ( #121982=categorized answer: print w/ replies, xml ) | Need Help?? |
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Q&A > strings > How do I delete the last instance of a word from a string? contributed by tye
Although I prefer the rindex/substr solution, another alternative involves regular expressions with "zero-width negative look-ahead assertions":
s/\Q$word\E(?!.*\Q$word\E)//s
or, if you really only want "words": s/\b\Q$word\E\b(?!.*\b\Q$word\E\b)//s
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