UniBasic Commands Reference - Rocket Software

INDEX
Syntax
INDEX(str.expr1,str.expr2,num.expr)
Description
The UniBasic INDEX function returns the starting position of the num.expr occurrence
of str.expr2 within str.expr1. INDEX supports multibyte languages.
Parameters
The following table describes each parameter of the syntax.
Parameter Description
Examples
In the following example, the program segment searches STR.VAR for the second
occurrence of the letter t and returns that location in the variable LOC. In this
example, it returns a value of 8.
1-371 UniBasic Commands Reference
str.expr1 Specifies the string to search.
str.expr2 Specifies the string for which to search in str.expr1.
num.expr Specifies which occurrence of str.expr2 to return.
INDEX Parameters
STR.VAR = "It was the best of times"
LOC = INDEX(STR.VAR,"t",2)
In the next example, the INDEX function operates like the COL() functions used in
conjunction with the FIELD function. It returns the beginning position of the string
212 within the string variable STR. The result stored in the variable NY.STR is 15.
STR = "303-433-3199, 212-999-1212"
NY.STR = INDEX(STR,"212",1)