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300cbaba31
- Checkout apple/swift-experimental-string-processing using a tag. - Build `_MatchingEngine` as part of libswift (`ExperimentalRegex`) using sources from the package. - Parse regex literals using the parser from `_MatchingEngine`. - Build both `_MatchingEngine` and `_StringProcessing` as part of core libs using sources from the package. - Use `Regex<DynamicCaptures>` as the default regex type until we finalize apple/swift-experimental-string-processing#68.
53 lines
1.3 KiB
Swift
53 lines
1.3 KiB
Swift
// RUN: %target-run-simple-swift(-Xfrontend -enable-experimental-string-processing)
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// REQUIRES: libswift,string_processing,executable_test
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import StdlibUnittest
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var RegexBasicTests = TestSuite("RegexBasic")
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extension String {
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func expectMatch<T>(
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_ regex: Regex<T>,
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file: String = #file,
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line: UInt = #line
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) -> RegexMatch<T> {
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guard let result = match(regex) else {
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expectUnreachable("Failed match", file: file, line: line)
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fatalError()
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}
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return result
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}
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}
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RegexBasicTests.test("Basic") {
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let input = "aabccd"
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let match1 = input.expectMatch('aabcc.')
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expectEqual("aabccd", input[match1.range])
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expectEqual(.empty, match1.captures)
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let match2 = input.expectMatch('a*b.+.')
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expectEqual("aabccd", input[match2.range])
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expectEqual(.empty, match2.captures)
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}
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RegexBasicTests.test("Captures") {
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let input = """
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A6F0..A6F1 ; Extend # Mn [2] BAMUM COMBINING MARK KOQNDON..BAMUM \
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COMBINING MARK TUKWENTIS
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"""
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let regex = '([0-9A-F]+)(?:\.\.([0-9A-F]+))?\s+;\s+(\w+).*'
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let match1 = input.expectMatch(regex)
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expectEqual(input[...], input[match1.range])
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expectEqual(
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.tuple([
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.substring("A6F0"),
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.optional(.substring("A6F1")),
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.substring("Extend")
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]),
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match1.captures)
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}
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runAllTests()
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