Mihaela Mihaljevic
ef682808d4
Add PureXML.Parsing.SAXHandler (a struct of optional callbacks) and PureXML.parse(_:sax:), which drives the handler from the streaming event core, delivering start/end document, start/end element, characters, CDATA, comment, and processing-instruction callbacks. Element names are namespace-resolved. Closes the SAX2 epic (#19). Reimplemented from the libxml2 SAX2 model; no upstream code copied. 5 tests; 84 total.
37 lines
1.7 KiB
Swift
37 lines
1.7 KiB
Swift
public extension PureXML.Parsing {
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/// A SAX-style set of callbacks, delivered as a document is parsed rather than
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/// building a tree (the libxml2 SAX2 model). Each callback is optional; set
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/// only the ones you need. Names are namespace-resolved ``Model/QualifiedName``
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/// values, so the URI is available on the callback.
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struct SAXHandler {
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public var startDocument: (() -> Void)?
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public var endDocument: (() -> Void)?
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public var startElement: ((PureXML.Model.QualifiedName, [PureXML.Model.Attribute]) -> Void)?
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public var endElement: ((PureXML.Model.QualifiedName) -> Void)?
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public var characters: ((String) -> Void)?
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public var cdata: ((String) -> Void)?
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public var comment: ((String) -> Void)?
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public var processingInstruction: ((_ target: String, _ data: String) -> Void)?
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public init(
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startDocument: (() -> Void)? = nil,
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endDocument: (() -> Void)? = nil,
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startElement: ((PureXML.Model.QualifiedName, [PureXML.Model.Attribute]) -> Void)? = nil,
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endElement: ((PureXML.Model.QualifiedName) -> Void)? = nil,
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characters: ((String) -> Void)? = nil,
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cdata: ((String) -> Void)? = nil,
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comment: ((String) -> Void)? = nil,
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processingInstruction: ((_ target: String, _ data: String) -> Void)? = nil,
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) {
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self.startDocument = startDocument
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self.endDocument = endDocument
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self.startElement = startElement
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self.endElement = endElement
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self.characters = characters
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self.cdata = cdata
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self.comment = comment
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self.processingInstruction = processingInstruction
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}
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}
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}
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