CODEWITHSUNDEEP
regexcapture
SM9
SM9

Reputation: 111

Regex Advanced Capture

I am trying to retrieve a weapon classname from a string.

The string could look like:

econ/default_generated/weapon_m4a1_silencer_am_m4a1-s_alloy_orange_medium

And I would want:

weapon_m4a1_silencer

But the trick here is, Sometimes the classname could have either 2 or 3 instances of "_"

So a 2nd example would be:

econ/default_generated/weapon_deagle_am_scales_bravo_medium

And would give me:

weapon_deagle

A pattern which could be used is that their is always 2 letters which are inside the _ that come after the classname, (In this case "am")

Any help is much appreciated.

Edit there appears to be cases where there is more _ instances than I thought. Example: https://regex101.com/r/Cmup26/1 weapon_knife_m9_bayonet is not captured.

Upvotes: 1

Views: 73

Answers (1)

user557597
user557597

Reputation:

Updated - to get up until last _AA_

weapon(?:(?:_[^\W_]+)+(?=_[^\W_]{2}_)|(?:(?!_[^\W_]{2}_)_[^\W_]+)+)

https://regex101.com/r/r6yORE/1

where [^\W_] is [a-zA-Z0-9] (substitute allowed letters)

Expanded 

 weapon
 (?:                           # Cluster - requires a  _Segment
      (?: _ [^\W_]+ )+
      (?= _ [^\W_]{2} _ )           # Stop before last _AA_ (high priority)
   |                              # or,
      (?:                           # Stop before first _AA_ (low priority)
           (?! _ [^\W_]{2} _ )      #  (note- this is only place where 
           _  [^\W_]+               #   segments with NO trailing _AA_ 
      )+                            #   will match)
 )

Upvotes: 1

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