JavaScript regex, searching for hashtags -


how can search text , hashtags (alphanumeric , underscore , hyphen) , wrap them in span tags eg search 

some_string = "this text 3 hashtags #tag1 , #tag-2 , #tag_3 in it"

and convert to:

"this text 3 hashtags <span>#tag1</span> , <span>#tag-2</span> , <span>#tag_3</span> in it"

i've got far:

    some_string = some_string.replace(/\(#([a-z0-9\-\_]*)/i,"<span>$1</span>");

but 1 fault doesn't include # in wrappings should. seems output:

"this text 3 hashtags <span>tag1</span> , #tag-2 , #tag_3 in "

also detects first hashtag comes across (eg. #tag1 in sample), should detect all.

also need hashtags minimum of 1 character after #. # on own should not match.

thanks

try replace call:

edit: if want skip http://site.com/#tag kind of strings use:

var repl = some_string.replace(/(^|\w)(#[a-z\d][\w-]*)/ig, '$1<span>$2</span>');

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