The default Document Node is designed to be easy-to-use and foolproof, but if you need more advanced operations you can take advantage of the Advanced option in the Document Node Editor. You can use parenthesis, as well as comparison and logical operators to build complex rules.
Just click the Advanced option, and you can enter expressions, like these shown below:
Examples
If you have variables named age and state:
| true | Always include a node |
| (age >= 50) && (state == 'CA') | 50 or over from California |
| (age < 30) && (age > 20) | Age over 20 and under 30 |
| state in ['CA','WA','OR'] | State is one of CA, WA, OR |
| (age < 10) || (age > 80) | Age is under 10 or over 80 |
Reference
You can use the following operators when building expressions:
| Type | Description | Operator |
|---|---|---|
| Always include a node | true | |
| Comparison | greater than | > |
| Comparison | greater than or equal to | >= |
| Comparison | less than | < |
| Comparison | less or equal to | <= |
| Comparison | equal to | == |
| Comparison | not equal to | != |
| Comparison | identical | === |
| Comparison | not identical | !== |
| Containment | matches an item in a list | in |
| Logical | and | && |
| Logical | or | || |
Other Hints:
- Parentheses can be nested, and will be evaluated from right to left.
- Only value/variable comparison expressions with optional logical ANDs/ORs, are supported.
- For text operations, use single quotes!