Regex in replace not working?

[asdfljkadwflkj]

search for "[0-9]$"
replace with “\1 |”

The search works fine but replace does not interpret \1 as backreference

Regex options is turned on. regex backreference worked for me before, not sure how it stopped working

[asdfljkadwflkj]

found the answer, () needed in search string

github issue 351

Backref $1 is inserted as literal text during a regex find/replace

During 'find/replace', the backref $1 is being inserted as literal text. I have the latest Atom installed, and regex is on. Tried in Latex and plain text syntax mode. Here's my code: typical example: Find/Replace `some phrase' with ‘some phrase’ `[\w ]+' ‘$1’ I want to replace the Latex quotes ` and ' with unicode typographical quotes ‘ and ’. There's an issue on GitHub relating to Atom's Regex syntax where several uses report the same problem.