Rockwell Automation 1771-DB BASIC MODULE - Manual (Page 256)

Chapter
Call Routines 0–68 12
12 -66
Use this routine to delete a string from within another string.
Important: This routine deletes only the first occurrence of the string.
Input and Output Arguments
This routine has two input arguments and no output arguments. The first
argument is the base string number. The second is the string number of the
string you want to delete from the base string.
Syntax
PUSH base string number
PUSH string number of string to be deleted from base string
CALL 67
Example
>10 REM ROUTINE TO DELETE A STRING IN A STRING
>20 STRING 200,14
>30 $(1)=“123456789012”
>40 $(2)=“12”
>50 PRINT “BEFORE: $1=”,$(1)
>60 PUSH 1 :REM BASE STRING NUMBER
>70 PUSH 2 :REM STRING NUMBER OF STRING TO BE DELETED
>80 CALL 67: REM INVOKE STRING DELETE ROUTINE
>90 PRINT “AFTER: $1=”,$(1)
>100 END
>RUN
BEFORE: $1=123456789012
AFTER: $1=3456789012
CALL 67: Delete String
from a String