Mihaela Mihaljevic
1e14d18f4d
* fix(xslt): keep the literal prefix for xsl:namespace-alias, remap only the URI XSLT 1.0 7.1.1: an aliased result element keeps the prefix used in the stylesheet; only its namespace URI is replaced by the result namespace. The serializer adopted the result-prefix as the output prefix, so axsl:foo aliased to the XSLT namespace came out as xsl:foo. The result-prefix now only selects the replacement namespace; the element name, attributes, and copied namespace declarations all keep their literal prefix. Closes Apache Xalan conformance cases namespace19, namespace23, namespace24, namespace35, namespace113. * refactor(xslt): drop the now-unused NamespaceAlias prefix field The namespace-alias output keeps the literal prefix, so the result-prefix is no longer stored; only the result namespace URI is needed. Removes the dead field and corrects the addNamespaceAlias doc comment.
58 lines
2.7 KiB
Swift
58 lines
2.7 KiB
Swift
import Testing
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@testable import PureXML
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@Suite("XSLT xsl:namespace-alias")
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struct XSLTNamespaceAliasTests {
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private let xsl = "xmlns:xsl=\"http://www.w3.org/1999/XSL/Transform\""
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private func transform(_ stylesheet: String, _ source: String) throws -> String {
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try PureXML.XSLT.transform(stylesheet: stylesheet, source: source)
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}
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@Test("A literal element in the aliased namespace keeps its prefix, with the result namespace")
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func test_rewrite() throws {
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let style = """
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<xsl:stylesheet version="1.0" \(xsl) xmlns:a="urn:from" xmlns:b="urn:to">
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<xsl:namespace-alias stylesheet-prefix="a" result-prefix="b"/>
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<xsl:output method="xml" omit-xml-declaration="yes"/>
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<xsl:template match="/"><a:thing/></xsl:template>
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</xsl:stylesheet>
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"""
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// 7.1.1: the literal prefix `a` is kept and only its namespace URI is
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// remapped to the result namespace; the result-prefix `b` selects the
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// namespace, it is not adopted as the output prefix (Apache Xalan
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// namespace19, namespace23, namespace24, namespace35, namespace113).
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#expect(try transform(style, "<x/>") == "<a:thing xmlns:a=\"urn:to\" xmlns:b=\"urn:to\"/>")
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}
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@Test("A non-aliased literal element still copies in-scope declarations")
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func test_notAliased() throws {
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let style = """
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<xsl:stylesheet version="1.0" \(xsl) xmlns:a="urn:from" xmlns:b="urn:to">
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<xsl:namespace-alias stylesheet-prefix="a" result-prefix="b"/>
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<xsl:output method="xml" omit-xml-declaration="yes"/>
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<xsl:template match="/"><plain/></xsl:template>
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</xsl:stylesheet>
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"""
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// Both in-scope namespaces are copied; the aliased `a` keeps its prefix
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// with its URI remapped to the result namespace, alongside `b`.
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#expect(try transform(style, "<x/>") == "<plain xmlns:a=\"urn:to\" xmlns:b=\"urn:to\"/>")
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}
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@Test("namespace-alias can produce literal xsl: elements (stylesheet generation)")
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func test_generateXSL() throws {
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let style = """
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<xsl:stylesheet version="1.0" \(xsl) xmlns:axsl="urn:alias">
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<xsl:namespace-alias stylesheet-prefix="axsl" result-prefix="xsl"/>
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<xsl:output method="xml" omit-xml-declaration="yes"/>
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<xsl:template match="/"><axsl:value-of select="."/></xsl:template>
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</xsl:stylesheet>
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"""
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let out = try transform(style, "<x/>")
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// The aliased axsl: element keeps its prefix but is bound to the XSLT
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// namespace, so it is a literal xsl:value-of (axsl maps to Transform),
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// not run as an instruction.
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#expect(out == "<axsl:value-of xmlns:axsl=\"http://www.w3.org/1999/XSL/Transform\" select=\".\"/>")
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}
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}
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