Rockwell Automation 1771-DB BASIC MODULE - Manual (Page 254)

Chapter
Call Routines 0–68 12
12 -64
Use this routine to replace a string within a string.
Input and Output Arguments
This routine has three input arguments and no output arguments. The first
input argument is the string number of the new string to replace the old
string. The second input argument is the string number of the old string to
be replaced by the new string. The third input argument is the base string’s
string number.
Syntax
PUSH string number of the replacement string
PUSH string number of the string to be replaced
PUSH base string number
CALL 65
Example
>10 REM SAMPLE OF REPLACE STRING IN STRING
>20 STRING 1000,20
>30 $(0)=“RED-LINES”
>40 $(1)=“RED”
>50 $(2)=“BLUE”
>60 PRINT “BEFORE: $0=”,$(0)
>70 PUSH 2 :REM STRING NUMBER OF STRING TO REPLACE WITH
>80 PUSH 1 :REM STRING NUMBER OF STRING TO BE REPLACED
>90 PUSH 0 :REM BASE STRING NUMBER
>100 CALL 65 :REM REPLACE STRING IN STRING ROUTINE
>110 PRINT “AFTER: $0=”,$(0)
>120 END
>RUN
BEFORE: $0=RED-LINES
AFTER: $0=BLUE-LINES
CALL 65: Replace a String
in a String