<?xml version="1.0" encoding="ISO-8859-1"?>

<!-- 
SRGS XML Grammar Form DTD (20020524)

Copyright 1998-2002 W3C (MIT, INRIA, Keio), All Rights Reserved. 

Permission to use, copy, modify and distribute the SRGS DTD and 
its accompanying documentation for any purpose and without fee is 
hereby granted in perpetuity, provided that the above copyright 
notice and this paragraph appear in all copies.  

The copyright holders make no representation about the suitability 
of the DTD for any purpose. It is provided "as is" without expressed 
or implied warranty.
-->

<!ENTITY % uri "CDATA">
<!ENTITY % rule-expansion "#PCDATA | token | ruleref
                              | item | one-of | tag ">
<!ENTITY % grammar-header "( meta | metadata | lexicon )*">
<!ENTITY % grammar-body "( rule )*">

<!ELEMENT ruleref EMPTY>
<!ATTLIST ruleref
	uri %uri; #IMPLIED
	type CDATA #IMPLIED
	special (NULL | VOID | GARBAGE) #IMPLIED
	xml:lang NMTOKEN #IMPLIED
>

<!ELEMENT token (#PCDATA)>
<!ATTLIST token
	xml:lang NMTOKEN #IMPLIED
>

<!ELEMENT tag (#PCDATA)>

<!ELEMENT one-of (item)+>
<!ATTLIST one-of
	xml:lang NMTOKEN #IMPLIED
>

<!ELEMENT item (%rule-expansion;)*>
<!ATTLIST item
	repeat NMTOKEN #IMPLIED
	repeat-prob NMTOKEN #IMPLIED
	weight NMTOKEN #IMPLIED
	xml:lang NMTOKEN #IMPLIED
>

<!ELEMENT rule (%rule-expansion; | example)*>
<!ATTLIST rule
	id ID #REQUIRED
	scope (private | public) "private"
>

<!ELEMENT example (#PCDATA)>

<!ELEMENT lexicon EMPTY>
<!ATTLIST lexicon
	uri %uri;#REQUIRED
	type CDATA #IMPLIED
>

<!ELEMENT meta EMPTY>
<!ATTLIST meta
	name NMTOKEN #IMPLIED
	content CDATA #REQUIRED
	http-equiv NMTOKEN #IMPLIED
>

<!ELEMENT metadata EMPTY>

<!ELEMENT grammar (%grammar-header;, %grammar-body;)>
<!ATTLIST grammar
	tag-format %uri; #IMPLIED
	xml:base %uri; #IMPLIED
	version NMTOKEN #REQUIRED
	xml:lang NMTOKEN #IMPLIED
	xmlns CDATA #REQUIRED
	xmlns:xsi CDATA #IMPLIED
	xsi:schemaLocation CDATA #IMPLIED
	root IDREF #IMPLIED
	mode (voice | dtmf) "voice"
>