Print (FloatNamedArraylist subroutine)

<section begin=dpl_desc/>Print the FloatNamedArraylist<section end=dpl_desc/>

Print is a member of the FloatNamedArraylist class.

This subroutine displays the contents of a FloatNamedArraylist on the user's standard output device, typically a terminal. The list item values, displayed in numeric order by their float subscripts, are preceded by their item number and subscript number, both of which by default are followed by a colon (:) and a blank.

Syntax

  %fnamrayl:Print( [method]                  -
                 [, NumWidth=itemnumlen]     -
                 [, Separator=separator]     -
                 [, NameWidth=itemnamelen]   -
                 [, Start=firstitem]         -
                 [, MaxItems=maxitems]       -
                 [, Label=label] )

Syntax Terms

%rc

A numeric variable that is set to the number of FloatNamedArraylist items displayed.

%fnamrayl

A FloatNamedArraylist object.

method

The method that is applied to %fnamrayl items to produce the printed output. The method must take no parameters and produce an intrinsic (Float, String, Fixed, Unicode) value. It may be a system or user-written method, a class Variable or Property, a local method (?? refid=localm.), or a Method variable. The default value of method is ToString.

NumWidth= itemnumlen

The number of bytes in the display of each item to use for the item number (position). This is an optional parameter; if you specify a value, the parameter name NumWidth is required. Item numbers are right-justified within the indicated number of bytes, and they are truncated on the left if the length of the item number exceeds the space allocated for it. The width must be a number between -1 and 10 inclusive. If you specify a value of 0, the item number is not displayed. If NumWidth is -1, the default, the method uses the minimum number of bytes required to show the item number. For example, one byte is required for item number 5, while five bytes are required for item number 98764.

Separator= separator

A String, 15 characters or less, to be used to separate both the item number and the float subscript from what follows. That is, the separator you specify appears twice: once after the item number and once after the item subscript. This is an optional argument whose default is a colon (:). A blank always follows the separator string. If you specify a value, the parameter name Separator is required.

Start= firstitem

The item number of the initial item in the output display. This is an optional argument, and it defaults to 1. If you specify a value, the parameter name Start is required.

MaxItems= maxitems

The maximum number of items to display. A zero or negative value means to display all the items. This is an optional argument, and it defaults to zero. If you specify a value, the parameter name MaxItems is required.

Label= label

A literal string that gets output before each line. This is useful for “tagging” lines to make them more identifiable. This is an optional argument whose default is a null string. If you specify a value, the parameter name Label is required.

NameWidth= itemnamelen

The number of bytes in the display of the item subscript number. This must be a number from -1 through 255. If you specify a value, the parameter name NameWidth is required. Item subscripts are left-justified within the indicated number of bytes, and they are truncated on the right if the length of the item subscript exceeds the space allocated for it. If you specify a value of 0, the item subscript is not displayed. This is an optional argument; it defaults to -1, which directs the method to use whatever number of bytes are necessary to show the entire item subscript. For example, three bytes are required for item subscript 111.

Usage Notes

• All errors in Print result in request cancellation.
• Audit and Trace are the same as Print except they send their output to the audit trail and selected trace destination, respectively.
• For examples of Print method calls, see Printing a collection.