Mihaela Mihaljevic
610b7d0ca0
A literal result element and its attributes in a stylesheet namespace bound by stylesheet-prefix are rewritten on output to the namespace and prefix bound by result-prefix (#default supported), so a stylesheet can emit literal xsl: elements. Prefixes resolve through the in-scope xmlns declarations; aliases fold across include/import. Splits AVT parsing into XSLTAVT.swift and trims the transformer to stay within length budgets.
52 lines
2.1 KiB
Swift
52 lines
2.1 KiB
Swift
@testable import PureXML
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import Testing
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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 is rewritten to 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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// The element's prefix is rewritten from the stylesheet alias to the result.
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#expect(try transform(style, "<x/>") == "<b:thing/>")
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}
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@Test("A non-aliased literal element is untouched")
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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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#expect(try transform(style, "<x/>") == "<plain/>")
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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 is emitted as a literal xsl: element, not run.
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#expect(out.contains("xsl:value-of"))
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#expect(!out.contains("axsl"))
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}
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}
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