Regular Expressions: Excluding specific characters


Using regular expressions, match the words hog and dog with but not bog.



The simplest solution to match any line that ends in 'og' but is not 'bog' would be the expression '[^b]og'. Alternatively, you could use what we learned from the previous lesson and use '[hd]og' to match 'hog' and 'dog' but not 'bog'. Note that is is slightly more restrictive expression because it limits the strings it can match. 

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