Mihaela Mihaljevic
2d2572e265
format-number now honors named and default decimal formats: the decimal separator, grouping separator, percent, minus sign, zero-digit (for non-Latin digit sets), NaN, and infinity symbols come from the chosen xsl:decimal-format, in both the picture and the output. FormatNumber is parameterized over the symbol set and the formats thread through the function table; folded across include/import.
66 lines
2.5 KiB
Swift
66 lines
2.5 KiB
Swift
@testable import PureXML
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import Testing
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@Suite("XSLT xsl:decimal-format")
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struct XSLTDecimalFormatTests {
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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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private func formatNumber(_ select: String, decimalFormats: String = "") -> String {
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"""
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<xsl:stylesheet version="1.0" \(xsl)>
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<xsl:output method="text"/>
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\(decimalFormats)
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<xsl:template match="/"><xsl:value-of select="\(select)"/></xsl:template>
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</xsl:stylesheet>
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"""
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}
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@Test("The default format still works")
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func test_default() throws {
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#expect(try transform(formatNumber("format-number(1234.5, '#,##0.00')"), "<x/>") == "1,234.50")
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}
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@Test("A named European format swaps the decimal and grouping separators")
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func test_european() throws {
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let style = formatNumber(
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"format-number(1234.5, '#.##0,00', 'eu')",
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decimalFormats: "<xsl:decimal-format name=\"eu\" decimal-separator=\",\" grouping-separator=\".\"/>",
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)
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#expect(try transform(style, "<x/>") == "1.234,50")
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}
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@Test("A custom percent and minus sign are honored")
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func test_percentMinus() throws {
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let style = formatNumber(
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"format-number(-0.25, '0%', 'p')",
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decimalFormats: "<xsl:decimal-format name=\"p\" minus-sign=\"!\"/>",
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)
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#expect(try transform(style, "<x/>") == "!25%")
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}
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@Test("A custom NaN string is used for non-numbers")
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func test_nan() throws {
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let style = formatNumber(
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"format-number(number('abc'), '0', 'n')",
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decimalFormats: "<xsl:decimal-format name=\"n\" NaN=\"not-a-number\"/>",
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)
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#expect(try transform(style, "<x/>") == "not-a-number")
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}
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@Test("The unnamed decimal-format overrides the global default")
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func test_unnamedDefault() throws {
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let style = formatNumber(
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"format-number(5, '0')",
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decimalFormats: "<xsl:decimal-format zero-digit=\"0\" minus-sign=\"~\"/>",
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)
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// 5 formats plainly; a negative shows the overridden minus sign.
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#expect(try transform(style, "<x/>") == "5")
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let neg = formatNumber("format-number(-5, '0')", decimalFormats: "<xsl:decimal-format minus-sign=\"~\"/>")
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#expect(try transform(neg, "<x/>") == "~5")
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}
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}
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