Wml
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WML Usha
Agenda
Markup Language: WML • •
• •
Web equivalent: XML/HTML Tag-based browsing language • Screen management • Data input • Hyperlinks XML based language Inherits from HDML and HTML
• WML Cards – User interactions are split into cards – Navigation between cards possible
• Card Navigation – Hyperlinks, UI event handling – History
• State Management – Shared Variables – Reduced network traffic
WML Syntax •
•WML Tasks e.g., <prev>, , … Tokenized WML sent to client •Implies content provider does not know the size Deck = file.wml Must contain atleast one card Eg.
Agenda
• • •
•
• •
The first line specifies the XML version number. The second line specifies the SGML public document identifier. The third line specifies the location of the WML document type definition (DTD). The DTD can be located in the network, or you can store it locally to make accessing it faster. The Nokia WAP Toolkit includes the DTD file wml.xml, found in the directory\dtd. The fourth line is the root element of the XML document of which there may only be only one and it must match the root element name as indicated in the first argument of the document type. All WML documents must begin with a <wml> tag. The following lines define a card containing a start and an end tag and text to be displayed to the user. All WML decks must end with a tag.
Agenda
Agenda
Markup Language: WML • •
• •
Web equivalent: XML/HTML Tag-based browsing language • Screen management • Data input • Hyperlinks XML based language Inherits from HDML and HTML
• WML Cards – User interactions are split into cards – Navigation between cards possible
• Card Navigation – Hyperlinks, UI event handling – History
• State Management – Shared Variables – Reduced network traffic
WML Syntax •
paragraph
•Linebreak•WML Tasks e.g.
Agenda
• • •
•
• •
The first line specifies the XML version number. The second line specifies the SGML public document identifier. The third line specifies the location of the WML document type definition (DTD). The DTD can be located in the network, or you can store it locally to make accessing it faster. The Nokia WAP Toolkit includes the DTD file wml.xml, found in the directory
Agenda
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