Conditional Sections

[next] [prev] [prev-tail] [tail] [up]

7.9 Conditional Sections

<![ IGNORE [ declarations ]]>

<![ INCLUDE [ declarations ]]>

Enables parse-time customization and DTD modularization (e.g., choose desirable sections from a large DTD).

<?xml version="1.0" ?>
<!DOCTYPE doc SYSTEM "import.dtd"
[
<!ENTITY % article "INCLUDE">
<!ENTITY % book "IGNORE">
]>
<doc/>

<![%article;[
   <!ELEMENT doc (section | subsection)* >
]]>
<![%book;[
   <!ELEMENT doc (chapter | section | subsection)* >
   <!ELEMENT chapter (#PCDATA | section | subsection)* >
]]>
<!ELEMENT section (#PCDATA | subsection)* >
<!ELEMENT subsection (#PCDATA) >

[next] [prev] [prev-tail] [front] [up]