Programmer Guide/Command Reference/IREF

The IREF command returns the internal reference (IREF) of the currently selected element of the supplied XML file item, or, if you provide additional element data, the internal reference for the respective element of the supplied XML file item. If this information is not available, or not applicable, the IREF command will return the empty string.

Iref of the currently selected element

The basic form of the IREF command retrieves the iref of the currently selected element:

var := IREF xmlfile /Format [ /Attribute=irefAttr ] [ /Baseposition=basePos ] [ /Ilent ]

Note that the /Format option is mandatory.

Iref of a STx file position

When you supply an STx file position, position, the IREF command retrieves the iref of the element whose position you supplied

var := IREF xmlfile /Format position [ /Attribute=irefAttr ] [ /Baseposition=basePos ] [ /Ilent ]

In this case, the option /Delete will cause the STx position to be deleted. Note that here, too, the /Format option is mandatory.

Others

var := IREF xmlfile table posfld reffld [ /Delete /Tagged ] [ /Baseposition=basePos ] [ /Ilent ]

var := IREF xmlfile /Select [ iref | position ] [ /Nocase ] [ /Attribute=irefAttr ]
            [ /Baseposition=basePos ] [ /Ilent ]

Returns the internal reference (IREF) to the selected element or an empty string.

xmlfile

The id of an XML file item.

/Format

This option is mandatory.

/I

If set, errors are suppressed, and warnings are generated instead.

var := IREF xmlfile pos /Format /Delete [ /I ]

Returns the internal reference to the element at the position pos or an empty string. If /Delete is specified, the position is also deleted.

pos

The position of an element in the XML file xmlfile.

/Delete

This option is mandatory.

See the commands above for a description of the other parameters and options.

IREF xmlfile table posFld refFld /Format /Delete /All|Tagged [ /I ]

Stores the internal references to the element found at the positions in the field posFld in the field refFld. If /Delete is specified, or posFld is the same as refFld, then the positions are also deleted.

table

The id of an extended table.

posFld

The name of the field where the element positions are stored.

refFld

The name of the field where the IREFs should be stored. If this is the same as posFld, then the positions are deleted before being overwritten.

/All|Tagged

If /All is specified, all table entries are used (this is the default). If /Tagged is specified, then only the tagged entries are used.

See the commands above for a description of the other parameters and options.

IREF xmlfile iref|pos /Select [ /I ]

Select the element at the specified position (pos) or internal reference (iref).

iref

The internal reference of an existing element.

pos

The position of an existing element.

/Select

This option is mandatory.

Please not that you must surround the ref argument with single quotes, otherwise it will be interpreted as an option.

<code>IREF '$#f' '$#aset' /Select</code>