| SAXONICA | 
fn:contains(string? $operand1, string? $operand2) → boolean?
Function signature
| $operand1 | xs:string ? | 
| $operand2 | xs:string ? | 
| Result | xs:boolean ? | 
Returns true if the second string is a substring of the first
fn:contains(string? $operand1, string? $operand2, string $collation) → boolean?
Function signature
| $operand1 | xs:string ? | 
| $operand2 | xs:string ? | 
| $collation | xs:string | 
| Result | xs:boolean ? | 
Returns true the second string is a substring of the first, under the rules of the chosen collation. This must correspond to a RuleBaseCollator.