Billing System Using DTD In XML

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

<!DOCTYPE PURCHASEORDER [

<!ELEMENT PURCHASEORDER (CONTENT*)>

<!ELEMENT CONTENT (BILLTO+)>

<!ELEMENT BILLTO (NAME,STREET,CITY,STATE,ZIP,IMAGES,PAYMENT)>

<!ELEMENT NAME (#PCDATA)>

<!ELEMENT STREET (#PCDATA)>

<!ELEMENT CITY (#PCDATA)>

<!ELEMENT STATE (#PCDATA)>

<!ELEMENT ZIP (#PCDATA)>

<!ELEMENT CONTENT (SHIPTO+)>

<!ELEMENT SHIPTO (NAME,STREET,CITY,STATE,ZIP,IMAGES,PAYMENT)>

<!ELEMENT NAME (#PCDATA)>

<!ELEMENT STREET (#PCDATA)>

<!ELEMENT CITY (#PCDATA)>

<!ELEMENT STATE (#PCDATA)>

<!ELEMENT ZIP (#PCDATA)>

<!ELEMENT IMAGES EMPTY>

<!ELEMENT PAYMENT EMPTY>

<!ENTITY xyz "LOVELY PROFESSIONAL UNIVERSITY">

<!ENTITY abc "XML DOCUMENTS OF PURCHASE ORDER BILLING SYSTEM ">

<!ATTLIST IMAGES WIDTH CDATA "WIDTH">

<!ATTLIST PAYMENT MODE CDATA "MODE">

]>

<PURCHASEORDER>

&xyz;

<BILLTO>

&abc;

<NAME>RAM NARAYAN PATEL</NAME>

<STREET>STREET NUMBER-8</STREET>

<CITY>JALANDHAR</CITY>

<STATE>PUNJAB</STATE>

<ZIP>144401</ZIP>

<IMAGES>

<IMAGES WIDTH="100" />

</IMAGES>

<PAYMENT>

<PAYMENT MODE="ONLINE"/>

<PAYMENT MODE="OFFLINE"/>

</PAYMENT>

</BILLTO>

&xyz;<BILLTO>

<NAME>ANKUR SAXENA</NAME>

<STREET>STREET NUMBER-9</STREET>

<CITY>PHAGWARA</CITY>

<STATE>PUNJAB</STATE>

<ZIP>144401</ZIP>

<IMAGES>

<IMAGES WIDTH="100" />

</IMAGES>

<PAYMENT>

<PAYMENT MODE="ONLINE"/>

<PAYMENT MODE="OFFLINE"/>

</PAYMENT>

</BILLTO>

&xyz;<SHIPTO>

<NAME>RAM NARAYAN PATEL</NAME>

<STREET>STREET NUMBER-8</STREET>

<CITY>JALANDHAR</CITY>

<STATE>PUNJAB</STATE>

<ZIP>144401</ZIP>

<IMAGES>

<IMAGES WIDTH="100" />

</IMAGES>

<PAYMENT>

<PAYMENT MODE="ONLINE"/>

<PAYMENT MODE="OFFLINE"/>

</PAYMENT>

</SHIPTO>

&xyz;<SHIPTO>

<NAME>AASIM BASHIR</NAME>

<STREET>STREET NUMBER-10</STREET>

<CITY>SHRINAGAR</CITY>

<STATE>JAMMU AND KASHMIR</STATE>

<ZIP>144401</ZIP>

<IMAGES>

<IMAGES WIDTH="100" />

</IMAGES>

<PAYMENT>

<PAYMENT MODE="ONLINE"/>

<PAYMENT MODE="OFFLINE"/>

</PAYMENT>

</SHIPTO>

</PURCHASEORDER>