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EControl Syntax Editor SDK
TecRegExpr.SubExprMatchCount Property

Number of subexpressions.

property SubExprMatchCount: integer;

If preceded matching procedure is successful value will be equal number of subexpressions detected in text during mitching, otherwise it will be equal -1. Subexpression with index 0 is whole matching string, SubExprMatchCount can not be equal to zero. 

To get subexpression string use properties MatchPos and MatchLen

 

Subexpressions are used in Substitute function.

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