sketcher.dtd

Beginning Java 2, SDK 1.4 Edition Exercise Code samples for this book

<!ELEMENT sketch (line|circle|rectangle|curve|text)*>

<!ELEMENT color EMPTY>
   <!ATTLIST color 
             R CDATA                   #REQUIRED
             G CDATA                   #REQUIRED
             B CDATA                   #REQUIRED
   >

<!ENTITY % coordinates "x CDATA #REQUIRED y CDATA #REQUIRED">

<!ELEMENT position EMPTY>
   <!ATTLIST position %coordinates;> 

<!ELEMENT endpoint EMPTY>
   <!ATTLIST endpoint %coordinates;>

<!ELEMENT line (color, position, endpoint)>
   <!ATTLIST line 
             angle CDATA                   #REQUIRED
   >

<!ELEMENT rectangle (color, position, bottomright)>
   <!ATTLIST rectangle
             angle CDATA                   #REQUIRED
   >

<!ELEMENT bottomright EMPTY>
   <!ATTLIST bottomright %coordinates;>

<!ELEMENT circle (color, position)>
   <!ATTLIST circle
             radius CDATA                  #REQUIRED
             angle CDATA                   #REQUIRED
   >

<!ELEMENT curve (color, position, point+)>
   <!ATTLIST curve  angle CDATA  #REQUIRED>

<!ELEMENT point EMPTY>
   <!ATTLIST point %coordinates;>

<!ELEMENT text (color, position, font, string)>
   <!ATTLIST text  angle CDATA  #REQUIRED>

<!ELEMENT font EMPTY>
   <!ATTLIST font
             fontname  CDATA                           #REQUIRED
             fontstyle (plain|bold|italic|bold-italic) #REQUIRED
             pointsize CDATA                           #REQUIRED
   >

<!ELEMENT string (#PCDATA|bounds)*>

<!ELEMENT bounds EMPTY>
   <!ATTLIST bounds 
             width     CDATA               #REQUIRED
             height    CDATA               #REQUIRED 
   >