Powershell RegEx - String matches pattern, but is part of the string

Question

I'm new posting to this site, but use it extensively.

I'm using the following regex pattern:

(\w{2})_(\w{3}) (\w{2,4}) ([\w ]+) - ([\w ]+)

Works perfectly on any of the following Strings when trying to match:

Rg_Svr GB This is a Test - Permission
Rg_Svc TW ThisIsATest - Permission Also

It also works on the following, but I don't want it to:

Rg_Svc TW ThisIsATest - Permission Also - AndMoreText
Rg_Svc TW ThisIsATest - Permission Also - And More Text

Basically, I don't want Powershell to have a successful match if there is anything after the 5th Capturing Group.

Results from match are:

1.  [0-2]   `Rg`
2.  [3-6]   `Svc`
3.  [7-9]   `TW`
4.  [10-21] `ThisIsATest`
5.  [24-40] `Permission Also `

Thanks in advance!

npinti · Accepted Answer · 2015-04-22 08:49:35Z

2

The problem is that your expression will match the first section of the text you do not want to match. You can add the ^ and $ anchors to expect an exact match, something like so: ^(\w{2})_(\w{3}) (\w{2,4}) ([\w ]+) - ([\w ]+)$. An example can be viewed here.

answered Apr 22, 2015 at 8:49

npinti

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