RegEx : Perfect hash tag regex

This is what I have so far:

\s#([^ ]*)

Example : http://regexr.com?2te3d

It works pretty well except hashtags at the beginning of strings don'开发者_运维问答t get picked up by my RegEx.

How should I modify it to pick these ones up as well? The \b command doesn't seem to work the same way as it does with normal words.

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If it is just about the beginning of the string, you could do:

(^|\s)#([^ ]*)

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Try this regex: \B#([^ ]+) It matches all hashtags except the one in the URL which i guess shouldn't be matched

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Given this input: #first #second # #third #weird#tag #with-minus #

This: /(^|\s)#([^\s]+)/g will skip empty #'s and will only match:

• #first
• #second
• #third
• #weird#tag
• #with-minus