Content processing rules - OmniMark Concept

SGML documents have a hierarchical element structure. Other structural components within the SGML document nest within the element structure as well. These include rcdata, cdata, and ignore marked sections, processing instructions, non-text entities, and SGML comments.

The OmniMark rules that process these components share the following characteristics:

They are triggered when the beginning of the component is encountered.
The body of the rule must contain an action that explicitly processes the content of the structural component. When this action is executed, the current OmniMark rule is suspended.
Other OmniMark rules may fire during the processing of the content as nested structural components are encountered.
Once all of the content has been processed, the current rule resumes, and the rest of the actions are executed.

OmniMark requires that the actions for the rule process the content of these components. The content must be processed only once, or it must be explicitly discarded.

The content of the component can be processed by:

executing a suppress action
processing a %c operator in a quoted string

The content of a component can be processed only once: it is an error for a component's actions to contain multiple references to its content, unless they include conditions that ensure only one reference is selected.

----

[CONTENTS] [CONCEPTS] [SYNTAX] [LIBRARIES] [SAMPLES] [ERRORS] [INDEX]