RAD Studio VCL Reference
AnsiStrings.PosEx Function

Returns index value of substring, starting at offset.

function PosEx(const SubStr: AnsiString; const S: AnsiString; Offset: Integer = 1): Integer; overload;
int PosEx(const AnsiString SubStr, const AnsiString S, int Offset = 1);

PosEx returns the index of SubStr in S, beginning the search at Offset. The index is 1-based. 

PosEx returns 0 if SubStr is not found, if Offset is greater than the length of S, or if Offset is less than 1. 


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