Welcome to jBASE's new documentation site! Many answers to your questions can be found by searching the Knowledgebase or viewing the jBASE Documentation. We also have a Google Group for peer discussion about jBASE. If you are unable to find the information you are looking for, jBASE Support will be glad to assist in resolving your technical problems. Enjoy and please provide comments and feedback .

How can we help you?

FINDSTR

Description

The FINDSTR statement locates a string as a substring of a dynamic array element. It is similar in operation to the FIND statement. It takes the general form :

FINDSTR expression1 IN Var1 {, expression2} SETTING Var2 {,Var3 {, Var4}} THEN | ELSE statement(s)

Where:

  • expression1 evaluates to the string with which to search every element of the dynamic array,
  • Var1 is the actual dynamic array that will be searched. FINDSTR will normally locate the first occurrence of expression1 unless expression2 is specified. If specified then expression2 will cause a specific occurrence of expression1 to be located. 
  • The three variables Var2, Var3, Var4 are used to record the Field, Value and Sub-Value positions in which expression1 was found.

If expression1 is found as a substring of any element of Var1 then Vars 2, 3 and 4 are set to the position in which it was found and the THEN clause of the statement is executed if it is present. If expression1 is not found within any element of the dynamic array then Vars 2,3 and 4 are undefined and the ELSE clause of the statement is executed.

Note:

The statement may omit either the THEN clause or the ELSE clause but may not omit both. It is valid for the statement to contain both clauses if required.

An example of use is as:

0001     V.ARRAY = 'ABC' :@FM: 'DEF' :@VM: 'XYZ'  : @SM: 'XYZ'
0002
0003     FINDSTR 'XY' IN V.ARRAY SETTING V.FLD, V.VAL THEN
0004         CRT "FIELD: " : V.FLD, "POSITION: ": V.VAL
0005     END
0006
0007     ELSE
0008         CRT "NOT FOUND"
0009     END

to display:  

FIELD: 2        POSITION: 2

Go back to jBASE BASIC.

Was this article helpful?