Object and attribute qualifiers

PPS supports qualifiers to objects and their attributes.

Object and attribute qualifiers are contained in square brackets (“[qualifier]”) and are prefixed to lines containing an object or an attribute name. The following qualifiers are supported:

n: Nonpersistence. If you set it on an object, the object becomes nonpersistent. If you set it on an attribute, the attribute becomes nonpersistent if the parent object is persistent; otherwise the qualifier is ignored. For more information, see “Nonpersistence qualifier.”
i: Item. Specifies an item for a set attribute. For more information, see “Item qualifier.”

Note:

By default, qualifiers aren't set.
On a read() call, you will see a preceding qualifier list “[option letters]” only for options that have been set.
Attribute options always precede both the special character and the object or attribute name.

If nothing precedes a qualifier, that qualifier is set. It the qualifier is preceded by a minus sign (“-”), that qualifier is cleared. If a qualifier isn't specified, that qualifier isn't changed. For example:

To:	Specify:
Set the nonpersistence qualifier on an attribute	`[n]url::www.qnx.com`
Clear the nonpersistence qualifier on an attribute	`[-n]url::www.qnx.com`
Leave the current nonpersistence qualifier unchanged	`url::www.qnx.com`
Add `hammer` to a set	`[i]toolbox::hammer,`
Remove `screwdriver` from a set	`[-i]toolbox::screwdriver,`