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'This program uses the COMMAND$ function to break the command line into
'separate arguments. Each argument is separated from adjoining arguments
'by one or more blanks or tabs on the command line.
 
'Default variable type is integer in this module.
DEFINT A-Z
 
'Declare the Comline SUB procedure, as well as the number and
'type of its parameters.
DECLARE SUB Comline(N, A$(),Max)
 
DIM A$(1 TO 15)
'Get what was typed on the command line.
CALL Comline(N,A$(),10)
'Print out each part of the command line.
PRINT "Number of arguments = ";N
PRINT "Arguments are: "
FOR I=1 TO N : PRINT A$(I) : NEXT I
 
'SUB procedure to get command line and split into arguments.
'Parameters:  NumArgs : Number of command line args found.
'             Args$() : Array in which to return arguments.
'             MaxArgs : Maximum number of arguments array can return.
SUB Comline(NumArgs,Args$(),MaxArgs) STATIC
CONST TRUE=-1, FALSE=0
 
   NumArgs=0 : In=FALSE
   'Get the command line using the COMMAND$ function.
   Cl$=COMMAND$
   L=LEN(Cl$)
   'Go through the command line a character at a time.
   FOR I=1 TO L
      C$=MID$(Cl$,I,1)
      'Test for character being a blank or a tab.
      IF (C$<>" " AND C$<>CHR$(9)) THEN
      'Neither blank nor tab. Test if you're already inside an argument.
         IF NOT In THEN
         'You've found the start of a new argument.
            'Test for too many arguments.
            IF NumArgs=MaxArgs THEN EXIT FOR
            NumArgs=NumArgs+1
            In=TRUE
         END IF
         'Add the character to the current argument.
         Args$(NumArgs)=Args$(NumArgs)+C$
      ELSE
      'Found a blank or a tab.
         'Set "Not in an argument" flag to FALSE.
         In=FALSE
      END IF
   NEXT I
 
END SUB
 
 
'The following is a sample command line and output for a stand-alone
'executable file (assumes program name is arg.exe):
'
'arg one  two   three    four     five      six
 
'Sample Output
'
'Number of arguments =  6
'Arguments are:
'ONE
'TWO
'THREE
'FOUR
'FIVE
'SIX