GBBopen 1.5 Reference -- stream-instances-of-class

stream-instances-of-class

stream-instances-of-class

unit-classes-specifier streamer

[Function]

Purpose
Write all unit instances of the specified unit classes to a streamer.

Package :gbbopen

Module :streaming

Arguments and values

unit-classes-specifier		An extended unit-classes specification (see below)
streamer		A streamer

Detailed syntax

`unit-classes-specifier` ::=	`t` \| `single-unit-class-specifier` \| `(single-unit-class-specifier`⁺`)`

`single-unit-class-specifier` ::=	`atomic-unit-class` \| `(atomic-unit-class subclassing-specifier)`

`atomic-unit-class` ::=	`unit-class` \| `unit-class-name`

`subclassing-specifier` ::=	`:plus-subclasses` \| `:no-subclasses` \| `+` \| `=`

The shorthand + subclasses specifier is equivalent to :plus-subclasses and = to :no-subclasses.

Example
Stream all unit instances of the unit class hyp to streamer *streamer*:

  (stream-instances-of-class 'hyp *streamer*)

stream-instances-of-class