regex to match a string without whitespaces between two #

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I am looking for a regex, which returns a string between two hashtags, but only if between the two # there is no whitespace.

My current regex: \#(.*?)\#

Testcase 1:

'#thisshouldbeparsed# #2 test'
=> thisshouldbeparsed (this is currently correct)

Testcase 2:

'test #2 #thisshouldbeparsed#'

=>2 (this is not correct)

I need a regex which is returning also "thisshouldbeparsed".

regex
1 Answers

You can use

#([^#\s]*)#

To avoide empty matches, replace * with +:

#([^#\s]+)#

See the regex demo.

Details

  • # - a # char
  • ([^#\s]*) - Group 1: any zero or more chars other than # and whitespace
  • # - a # char.
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