Ultisnips not recognizing snippet with hash key

[vikomen]

UltiSnips doesn't seem to be recognising the # key. I have the following snippet snippet `([A-Z])#` "bb" A ``rv = '\\mathbb{' + m[1] + '}'`` endsnippet **Expected behavior:** When pressing "A" "#" I would expect to get \mathbb{A} as my output. **Actual behavior:** When pressing "A" "#" I get A# as my output. **Steps to reproduce** 1) Add snippet `([A-Z])#` "bb" A ``rv = '\\mathbb{' + m[1] + '}'`` endsnippet to your snippets 2) Open a new file and press "A" and then "#"

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[smjonas]

Change the snippet to the following:

snippet "([A-Z])#" "bb" Ar
rv = '\\mathbb{' + m[1] + '}'
endsnippet

Since you are using a regular expression as the trigger, you need quotes and the r option.