1 
<!-- This document is a loose version of a way to describe parts of a PDF -->
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<mso xmlns="http://www.example.org/mso" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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	xsi:schemaLocation="http://www.example.org/mso mso.xsd">
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	<struct name="PDF">
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		<type name="header" type="Header" />
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		<type name="body" type="Body" />
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		<type name="crossReferenceTable" type="CrossReferenceTable" />
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		<type name="trailer" type="Trailer" />
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	</struct>
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	<struct name="Whitespace">
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		<uint8 name="ws">
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			<limitation value="0x00|0x09|0x0A|0x0C|0x0D|0x20" />
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		</uint8>
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	</struct>
15 
	<struct name="Delimiter">
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		<uint8 name="delimiter">
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			<limitation value="'('|')'|'['|']'|'{'|'}'|'/'|'%'" />
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		</uint8>
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	</struct>
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	<struct name="Digit">
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		<uint8 name="digit">
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			<limitation value="'0'|'1'|'2'|'3'|'4'|'5'|'6'|'7'|'8'|'9'" />
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		</uint8>
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	</struct>
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	<struct name="Eol">
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		<hex>0D0A</hex>
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	</struct>
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	<struct name="Header">
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		<text>%PDF-1.3</text>
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		<type name="ws" type="Whitespace" minOccurs="1" maxOccurs="unbounded" />
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	</struct>
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	<struct name="Body">
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		<type name="objects" type="Object" minOccurs="0" maxOccurs="unbounded" />
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	</struct>
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	<struct name="CrossReferenceLine">
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		<type name="offset" count="10" type="Digit" />
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		<hex>20</hex>
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		<type name="generation" count="5" type="Digit" />
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		<hex>20</hex>
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		<uint8 name="state">
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			<limitation value="'n'|'f'" />
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		</uint8>
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		<hex>0D0A</hex>
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	</struct>
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	<struct name="CrossReferenceSection">
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		<type name="start" array="true" type="Digit" />
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		<hex>20</hex>
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		<type name="offset" array="true" type="Digit" />
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		<type name="ws" type="Whitespace" minOccurs="1" maxOccurs="unbounded" />
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		<type name="entries" type="CrossReferenceLine" minOccurs="1"
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			maxOccurs="unbounded" />
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	</struct>
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	<struct name="CrossReferenceTable">
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		<text>xref</text>
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		<type name="ws" type="Whitespace" minOccurs="1" maxOccurs="unbounded" />
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		<type name="sections" type="CrossReferenceSection" minOccurs="1"
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			maxOccurs="unbounded" />
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	</struct>
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	<struct name="Boolean">
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		<fixedchoice name="boolean">
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			<text>true</text>
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			<text>false</text>
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		</fixedchoice>
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	</struct>
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	<struct name="Integer">
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		<uint8 name="sign">
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			<limitation value="'+'|'-'" />
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		</uint8>
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		<type name="value" minOccurs="1" maxOccurs="unbounded" type="Digit" />
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	</struct>
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	<struct name="Real">
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		<uint8 name="sign">
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			<limitation value="'+'|'-'" />
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		</uint8>
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		<type name="integer" minOccurs="0" maxOccurs="unbounded" type="Digit" />
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		<text>.</text>
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		<type name="fraction" minOccurs="0" maxOccurs="unbounded" type="Digit" />
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	</struct>
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	<struct name="Number">
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		<choice name="value">
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			<type type="Integer" />
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			<type type="Real" />
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		</choice>
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	</struct>
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	<struct name="EscapedCharacter">
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		<text>\</text>
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		<uint8 name="character" />
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	</struct>
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	<struct name="ParenthesisStringCharacters">
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		<uint8 name="literal" minOccurs="1" maxOccurs="unbounded">
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			<limitation expression="!='\'" />
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			<limitation expression="!=')'" />
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			<limitation expression="!='('" />
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		</uint8>
95 
	</struct>
96 
	<struct name="ParenthesisString">
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		<text>(</text>
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		<type name="string" type="ParenthesisStringContent" array="true" />
99 
		<text>)</text>
100 
	</struct>
101 
	<struct name="ParenthesisStringContent">
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		<choice name="content">
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			<type type="EscapedCharacter" />
104 
			<type type="ParenthesisStringCharacters" />
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			<type type="ParenthesisString" />
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		</choice>
107 
	</struct>
108 
	<struct name="Hexadecimal">
109 
		<uint8 name="character">
110 
			<limitation
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				value="'0'|'1'|'2'|'3'|'4'|'5'|'6'|'7'|'8'|'9'|'a'|'b'|'c'|'d'|'e'|'f'|'A'|'B'|'C'|'D'|'E'|'F'" />
112 
		</uint8>
113 
	</struct>
114 
	<struct name="HexadecimalStringContent">
115 
		<type type="Hexadecimal" name="a" />
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		<type name="ws" type="Whitespace" array="true" />
117 
		<type type="Hexadecimal" name="b" />
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		<type name="ws2" type="Whitespace" array="true" />
119 
	</struct>
120 
	<struct name="HexadecimalString">
121 
		<text>&lt;</text>
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		<type name="string" type="HexadecimalStringContent" array="true" />
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		<text>&gt;</text>
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	</struct>
125 
	<struct name="String">
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		<choice name="string">
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			<type type="ParenthesisString" />
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			<type type="HexadecimalString" />
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		</choice>
130 
	</struct>
131 
	<struct name="Name">
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		<text>/</text>
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		<uint8 name="name" array="true">
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			<limitation expression="!=0x00" />
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			<limitation expression="!=0x09" />
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			<limitation expression="!=0x0A" />
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			<limitation expression="!=0x0C" />
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			<limitation expression="!=0x0D" />
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			<limitation expression="!=0x20" />
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			<limitation expression="!='('" />
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			<limitation expression="!=')'" />
142 
			<limitation expression="!='['" />
143 
			<limitation expression="!=']'" />
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			<limitation expression="!='{'" />
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			<limitation expression="!='}'" />
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			<limitation expression="!='/'" />
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			<limitation expression="!='%'" />
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		</uint8>
149 
	</struct>
150 
	<struct name="ArrayEntry">
151 
		<choice name="entry">
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			<type type="Number" />
153 
			<type type="String" />
154 
			<type type="Dictionary" />
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			<type type="Array" />
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		</choice>
157 
		<type name="ws" type="Whitespace" minOccurs="1" maxOccurs="unbounded" />
158 
	</struct>
159 
	<struct name="Array">
160 
		<text>[</text>
161 
		<type name="ws" type="Whitespace" minOccurs="1" maxOccurs="unbounded" />
162 
		<type name="entries" type="ArrayEntry" array="true" />
163 
		<text>]</text>
164 
	</struct>
165 
	<struct name="Object">
166 
		<choice name="entry">
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			<type type="Number" />
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			<type type="String" />
169 
			<type type="Dictionary" />
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			<type type="Array" />
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		</choice>
172 
	</struct>
173 
	<struct name="DictionaryEntry">
174 
		<type name="key" type="Name" />
175 
		<type name="ws" type="Whitespace" minOccurs="1" maxOccurs="unbounded" />
176 
		<type name="value" type="Object" />
177 
		<type name="ws2" type="Whitespace" minOccurs="1" maxOccurs="unbounded" />
178 
	</struct>
179 
	<struct name="Dictionary">
180 
		<text>&lt;&lt;</text>
181 
		<type name="ws" type="Whitespace" minOccurs="1" maxOccurs="unbounded" />
182 
		<type name="entries" type="DictionaryEntry" array="true" />
183 
		<text>&gt;&gt;</text>
184 
	</struct>
185 
	<struct name="Stream">
186 
		<type name="info" type="Dictionary" />
187 
		<type name="ws" type="Whitespace" minOccurs="1" maxOccurs="unbounded" />
188 
		<text>stream</text>
189 
		<fixedchoice name="ws2">
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			<hex>0A</hex>
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			<hex>0D0A</hex>
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		</fixedchoice>
193 
		<uint8 name="stream" count="info['Length']" />
194 
		<fixedchoice name="endstream">
195 
			<hex>0A6E65736472746165</hex>
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			<hex>0D6E65736472746165</hex>
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			<hex>0D0A6E65736472746165</hex>
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			<text>endstream</text>
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		</fixedchoice>
200 
	</struct>
201 
	<struct name="Null">
202 
		<text>null</text>
203 
	</struct>
204 
	<struct name="Trailer">
205 
		<text>trailer</text>
206 
		<text>startxref</text>
207 
		<type name="ws" type="Whitespace" minOccurs="1" maxOccurs="unbounded" />
208 
		<type name="startxref" array="true" type="Digit" />
209 
		<text>%%EOF</text>
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	</struct>
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</mso>