Regex filters

You can use regular expressions (regex) in these filters:

• Tab filters

• Widget filters, in every widget type that has a Filter button

• Metric slice filters in tables

To use regex, pick the contains (regex) or does not contain (regex) operator for a dimension in the filter.

Clarisights follows the RE2 regex syntax. You can test your expressions on regex101 (choose the Golang flavor, which also uses RE2).

Sample campaign names

The examples below use these sample campaign names:

The campaign naming structure they follow is:

<Campaign ID>_<Campaign Platform>_<Campaign Category>_<Campaign Targeting>_<Campaign Channel>

1. Apply OR conditions in a single filter

Campaign    contains (regex)    AND|BRA

This finds all campaigns with either AND or BRA in the name. For the sample campaigns, it returns 1001_AND_Acme Shoes_RET_Facebook and ALL_Acme Jeans_BRA_Google Ads.

2. Match several attributes in a fixed order

To find campaigns whose platform is AND and whose targeting is RET:

Campaign     contains (regex)     _AND_.*_RET_

A plain contains filter can only look for one piece of text, so this needs regex.

3. Check that campaigns follow the naming convention

Campaign    does not contain (regex)    ^[0-9]+_(AND|WEB|IOS|ALL)_[a-zA-Z ]+_(RET|UA|BRA)_(Facebook|Google Ads|Apple)$

This returns every campaign that doesn't match the expected structure, so you can fix names that break your reporting.

Things to know

• A regex filter takes a single pattern. To match several alternatives, combine them with | as in the first example.

• Filters are case insensitive, with and without regex. With these sample campaigns:

  

  the filter Campaign contains web returns both campaigns.

• Named capture groups such as (?P<name>...) are not supported.

• A normal contains filter is faster than a regex filter, so use it where you can to keep your reports fast.

For more about filters, see Adding filters to your widget. If you need help with a regex filter, contact Clarisights support.