const class xml::XAttr

sys::Obj
  xml::XAttr

@Js

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XAttr models an XML attribute in an element. Attributes are immutable and may be shared across multiple XElem parents.

make

new make(Str name, Str val, XNs? ns := null)

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Construct an element with unqualified local name, value, and optional XML namespace. The XNs instance should be defined as an attribute on an ancestor element. Throw ArgErr if an attempt is made to qualify the attribute by the default namespace with prefix of "".

makeNs

new makeNs(XNs ns)

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Construct an attribute which defines a namespace with "xmlns:<prefix>" name and uri value. If prefix is "" then construct the default namespace attribute named "xmlns".

name

const Str name

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Unqualified local name of the attribute. If an XML namespace prefix was specified, then this is everything after the colon:

foo='val'   =>  foo
x:foo='val' =>  foo

Note that attributes which start with "xml:" and "xmlns:" are not treated as a namespace:

xml:lang='en' => xml:lang
XML:lang='en' => xml:lang

ns

const XNs? ns

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The XML namespace which qualified this attribute's name. If the attribute name is unqualified return null.

prefix

Str? prefix()

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If this attribute is qualified by an XML namespace then return the namespace's prefix. Otherwise return null. Note an attribute can never be qualified by the default namespace.

qname

Str qname()

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Qualified name of the attribute. This is the full name including the XML namespace prefix:

foo='val'   =>  foo
x:foo='val' =>  x:foo

toStr

virtual override Str toStr()

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Return this attribute name/value pair as string.

uri

Uri? uri()

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If this element is qualified by an XML namespace then return the namespace's uri. Otherwise return null.

val

const Str val

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Value of the attribute.

write

Void write(OutStream out)

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Write this attribute to the output stream.