Passing variables in Business Basic appears to not be working

The following code calls a program I made that automatically creates an input field with brackets on either side at a certain length.

C$ is a standard variable we use in all our programs in the business; the length is 10; Age: is the label; the x coordinate is 1; the y coordinate is 1 and IN$ is the variable for the input statement

3020 CALL "SCOINPUT",C$,10,"AGE:   ",1,1,IN$

The following program makes the input line:

0100 REM 100 - SCOINPUT - CREATES AN INPUT LINE WITH BRACKETS开发者_运维技巧 AND TO A CERTAIN
0100: SIZE
0150 SETERR 15000
0155 ENTER C$,INSIZE,LABEL$,X,Y,IN$
0160 LET LABEL$=CVS(LABEL$,7)
0170 LET EBRAK=X+LEN(LABEL$)+SIZE+2
0300 IF INSIZE<>0 THEN GOTO 0400 ELSE GOTO 0500
0400 PRINT @(X,Y),LABEL$+" [",@(EBRAK,Y),"]",
0410 INPUT (0,SIZ=INSIZE)@(X+LEN(LABEL$)+2,Y),"",IN$
15000 SETERR 15010; EXIT
15010 END

When the line is printed, everything is in the correct place, however the length isn't limited to 10 like it should be... anyone have any suggestions?

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Use the LEN option rather than SIZ for restricting input

0410 INPUT (0,LEN=INSIZE)@(X+LEN(LABEL$)+2,Y),"",IN$