Regex backreference not returning anything?
I'm new to regex, so please, bear with me.
I'm trying to replace everything that says col-md-(\w+) with col-md-(\w+) col-lg-(\w+) in Sublime Text 3.
However, when I use the line col-md-\1 col-lg-\1, it just turns into col-md- col-xs-
What am I doing wrong?
Thanks!
Update: Per request, I am showing the input/output:
...and when I replace all
Solution
Remove your lookahead and it will work :
Find What: col-md-(\w+)
Replace With: col-xs-$1 col-sm-$1 col-md-$1 col-lg-$1
Or use $2 instead of $1, as you've got a catching group inside this lookahead:
Find What: (?!col-md-(\w+) )col-md-(\w+)
Replace With: col-xs-$2 col-sm-$2 col-md-$2 col-lg-$2
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