| DocBook: The Definitive Guide 2.0.17 (Alpha)

# `%db*;` Parameter Entities

`%db*;` Parameter Entities — Control inclusion of DocBook modules

## Synopsis

These parameter entities control the inclusion of DocBook modules.

## Description

The modules listed here are included in DocBook DTD via parameter entity reference. For more information about these modules, and additional modules that can be defined, see Chapter 5, Customizing DocBook.

The following sections identify all of the module parameter entities in DocBook.

### %dbcent.euro;

Parameter entity content:

    INCLUDE

### %dbcent.module;

Parameter entity content:

    INCLUDE

### %dbcent;

Parameter entity content:

Public identifier: -//OASIS//ENTITIES DocBook Character Entities V4.5//EN

System identifier: dbcentx.mod

### %dbgenent.module;

Parameter entity content:

    INCLUDE

### %dbgenent;

Parameter entity content:

Public identifier: -//OASIS//ENTITIES DocBook Additional General Entities V4.5//EN

System identifier: dbgenent.mod

### %dbhier.module;

Parameter entity content:

    INCLUDE

### %dbhier;

Parameter entity content:

Public identifier: -//OASIS//ELEMENTS DocBook Document Hierarchy V4.5//EN

System identifier: dbhierx.mod

### %dbhier.redecl.module;

Parameter entity content:

    IGNORE

### %dbhier.redecl2.module;

Parameter entity content:

    IGNORE

### %dbnotn.module;

Parameter entity content:

    INCLUDE

### %dbnotn;

Parameter entity content:

Public identifier: -//OASIS//ENTITIES DocBook Notations V4.5//EN

System identifier: dbnotnx.mod

### %dbpool.module;

Parameter entity content:

    INCLUDE

### %dbpool;

Parameter entity content:

Public identifier: -//OASIS//ELEMENTS DocBook Information Pool V4.5//EN

System identifier: dbpoolx.mod

### %dbpool.redecl.module;

Parameter entity content:

    IGNORE

DocBook Content Parameter Entities |  | %*.element; Parameter Entities

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