1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45
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<!-- The following DTD is a simple view of a book:
Index[1,n]
Alpha - String
Word - String
Ref[1,n]
Page - String
Line[1,n] - String
Chapter[1,n]
Comment? - String
Paragraph[0,n] - String
Summary? - String
Available - Boolean
Price - String
Date - String
-->
<!ELEMENT summary (#PCDATA)>
<!ELEMENT book (index+, chapter+, summary?, available, price, date)>
<!ELEMENT available EMPTY>
<!ELEMENT index (alpha, word, ref+)>
<!ELEMENT ref (page, line+)>
<!ELEMENT alpha (#PCDATA)>
<!ELEMENT price (#PCDATA)>
<!ELEMENT date (#PCDATA)>
<!ELEMENT word (#PCDATA)>
<!ELEMENT line (#PCDATA)>
<!ELEMENT page (#PCDATA)>
<!ELEMENT chapter (comment?, paragraph*)>
<!ELEMENT paragraph (#PCDATA)>
<!ELEMENT comment (#PCDATA)>
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