refers to the first two lines of our "Hello World" WML
<!DOCTYPE wml PUBLIC
"-//WAPFORUM//DTD WML 1.3//EN"
WML document starts with the prolog. The first line is the XML
declaration and the second line is the DOCTYPE declaration.
prolog components are not WML elements and they should not be closed,
i.e. you should not give them an end tag or finish them with />.
XML Declaration and
WML documents are XML documents. So, there is an XML declaration at
the start. The XML declaration specifies the XML version of the
document. The character encoding of the document can also be
specified here, like this:
above line states that the XML version of the WML document is 1.0 and
the character encoding is UTF-8. If the character encoding of the WML
document is UTF-8 or UTF-16, there is no need to declare the
character encoding as it can be detected automatically.
that there should have no whitespace before the XML declaration. If
not, some WAP browsers or WAP gateways cannot process the WML file.
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