ruby - How do I match a UTF-8 encoded hashtag with embedded punctuation characters? -


i want extract #hashtags string, have special characters such #1+1.

currently i'm using: 

@hashtags ||= string.scan(/#\w+/)

but doesn't work special characters. also, want utf-8 compatible.

how do this?

edit:
if last character special character should removed, such #hashtag, #hashtag. #hashtag! #hashtag? etc...

also, hash sign @ beginning should removed.

this should work:

@hashtags = str.scan(/#([[:graph:]]*[[:alnum:]])/).flatten

or if don't want hashtag start special character:

@hashtags = str.scan(/#((?:[[:alnum:]][[:graph:]]*)?[[:alnum:]])/).flatten

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