*Note on "word" boundaries \b & its limits*

*"\b"* = "word-boundary" is an anchor that is *complementary to "\w"*.

\b is shorthand for "before or after the characters [a-zA-Z0-9_]". 

In regular expressions "cat", "cat9", "cat_9" and "999" are all "words". 
*"Über" is NOT a word* in regex because \b won't match accented letters. 
On "Über" the regex (\b\w+\b) will return "ber".


So if you work in languages other than English this is good to know to save 
hassle.


TT





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