Rockwell-automation 1771-DB BASIC MODULE Manual de usuario descargar pdf (Pagina 254)

100

101

Chapter

Call Routines 0–68

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

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

10 PRINT “AFTER: $0=”,$(0)

20 END

>RUN

BEFORE: $0=RED-LINES

AFTER: $0=BLUE-LINES

CALL

65: Replace a String

in a String

1 2 ... 249 250 251 252 253 254 255 256 257 258 259 ... 393 394

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