Programming Guide - Actian

How Procedure Handles Work (ProcHandle Objects)The syntax for the _StringSub procedure is:varchar(2000) = _StringSub(string=varchar(2000),arg1=varchar(100), arg2=varchar(100), arg3=varchar(100),arg4=varchar(100), arg5=varchar(100), arg6=varchar(100),arg7=varchar(100), arg8=varchar(100),arg9=varchar(100));The following code is an example of this syntax:str1 = _StringSub(string = 'Employee Name:%1,Address:%2(c/o %1)', arg1 = 'John Doe',arg2 ='101 California, USA');The _StringTokenSub ProcedureThis example returns “Employee Name: John Doe, Address:101 California, USA(c/o John Doe)”.This procedure substitutes a value for the specified token in a string. Thesyntax for this procedure is:varchar(2000) =_StringTokenSub(string=varchar(2000),token=varchar(256),replacewith=varchar(256)[remainingtokens=byref(integer)]);The optional argument remainingtokens, if specified, is set to the number ofoccurrences of tokens that remain in the string after the substitution.The following example shows how to use the _StringTokenSub procedure:str1 = _StringTokenSub(string='Employee Name:John Doe, Address: 101 California,USA (c/o John Doe)', token = 'John Doe', replacewith='Jane Doe',remaingtoken=byref(icount));This example returns “Employee Name:Jane Doe, Address:101 California, USA(c/o John Doe)”. The icount variable contains 1, indicating that there is onemore occurrence of John Doe in the substituted string.Writing Scripts and Procedures 91