Working with expression sets

Expressions sets are the largest building blocks of EDD rules. Each rule needs to include at least one expression set, which contains expressions that define a specific type of content. The expressions within a set are joined by OR operators meaning that a match is generated if any individual expression is matched by content in a file.

There is no limit to the number of expression sets that a rule can include, but it's best practice to keep your rule as simple as possible while still meeting the needs of your organization. If you need to add multiple expression sets to a rule, be aware that a match is generated only when an expression in each and every expression set is matched by content in a file.

You can perform the following actions on expression sets: