Mihaela Mihaljevic
26649e5c73
Broaden the TextReader pull cursor toward libxml2's xmlTextReader: - Attribute nodes: moveToFirstAttribute/moveToNextAttribute/ moveToAttribute(_:)/moveToElement reposition the cursor onto each attribute as an .attribute node and back. - Namespace accessors: namespaceURI, localName, prefix from the current element's or attribute's resolved name. - xml:lang: inherited down the tree, overridable per element, reset when it goes out of scope. - Position: lineNumber/columnNumber report where each node begins, so a streaming consumer can locate findings in the source. EventReader now records each node's start mark. DOCTYPE and entity-reference nodes are not surfaced (the DTD is exposed through documentType, and entities are expanded inline); whitespace is not split into significant/insignificant (needs the content model); baseURI needs a document URI. The accurate positioning path for editor findings remains readTree with source ranges. Closes #98
93 lines
3.4 KiB
Swift
93 lines
3.4 KiB
Swift
@testable import PureXML
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import Testing
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@Suite("TextReader breadth: attributes, namespaces, lang, position")
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struct TextReaderBreadthTests {
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private func reader(_ xml: String) -> PureXML.Parsing.TextReader {
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PureXML.reader(xml)
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}
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@Test("Attribute navigation walks each attribute and returns to the element")
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func test_attributeNavigation() throws {
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var cursor = reader("<a x=\"1\" y=\"2\"/>")
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#expect(try cursor.read())
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#expect(cursor.nodeKind == .element)
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let toFirst = cursor.moveToFirstAttribute()
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#expect(toFirst)
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#expect(cursor.nodeKind == .attribute)
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#expect(cursor.name == "x")
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#expect(cursor.value == "1")
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let toSecond = cursor.moveToNextAttribute()
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#expect(toSecond)
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#expect(cursor.name == "y")
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#expect(cursor.value == "2")
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let pastLast = cursor.moveToNextAttribute()
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#expect(!pastLast)
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let toElement = cursor.moveToElement()
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#expect(toElement)
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#expect(cursor.nodeKind == .element)
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#expect(cursor.name == "a")
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}
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@Test("moveToAttribute selects by name")
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func test_moveToAttributeByName() throws {
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var cursor = reader("<a x=\"1\" y=\"2\"/>")
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#expect(try cursor.read())
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let found = cursor.moveToAttribute("y")
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#expect(found)
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#expect(cursor.value == "2")
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let missing = cursor.moveToAttribute("z")
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#expect(!missing)
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}
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@Test("namespaceURI, localName, and prefix are exposed on elements")
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func test_namespaceAccessors() throws {
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var cursor = reader("<x:a xmlns:x=\"urn:x\"><b/></x:a>")
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#expect(try cursor.read())
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#expect(cursor.nodeKind == .element)
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#expect(cursor.namespaceURI == "urn:x")
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#expect(cursor.localName == "a")
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#expect(cursor.prefix == "x")
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#expect(try cursor.read())
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#expect(cursor.localName == "b")
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#expect(cursor.namespaceURI == nil)
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}
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@Test("xml:lang is inherited by descendants and reset when it goes out of scope")
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func test_xmlLang() throws {
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var cursor = reader("<a xml:lang=\"en\"><b>hi</b></a><c/>")
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#expect(try cursor.read()) // <a>
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#expect(cursor.xmlLang == "en")
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#expect(try cursor.read()) // <b>
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#expect(cursor.xmlLang == "en")
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#expect(try cursor.read()) // text
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#expect(cursor.xmlLang == "en")
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#expect(try cursor.read()) // </b>
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#expect(try cursor.read()) // </a>
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#expect(cursor.xmlLang == nil)
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}
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@Test("A nested xml:lang overrides the inherited value")
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func test_xmlLangOverride() throws {
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var cursor = reader("<a xml:lang=\"en\"><b xml:lang=\"fr\"/></a>")
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#expect(try cursor.read()) // <a>
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#expect(cursor.xmlLang == "en")
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#expect(try cursor.read()) // <b>
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#expect(cursor.xmlLang == "fr")
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}
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@Test("Each node reports the line and column where it begins")
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func test_position() throws {
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var cursor = reader("<a>\n <b/>\n</a>")
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#expect(try cursor.read()) // <a>
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#expect(cursor.lineNumber == 1)
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#expect(cursor.columnNumber == 1)
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#expect(try cursor.read()) // text "\n "
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#expect(try cursor.read()) // <b/>
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#expect(cursor.nodeKind == .element)
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#expect(cursor.name == "b")
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#expect(cursor.lineNumber == 2)
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#expect(cursor.columnNumber == 3)
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}
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}
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