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import _StringProcessing
import XCTest
// Test that our existential capture and concrete captures are
// the same
private func checkSame(
_ aro: AnyRegexOutput,
_ concrete: (Substring, fieldA: Substring, fieldB: Substring)
) {
XCTAssertEqual(aro[0].substring, concrete.0)
XCTAssertEqual(aro["fieldA"]!.substring, concrete.1)
XCTAssertEqual(aro["fieldA"]!.substring, concrete.fieldA)
XCTAssertEqual(aro[1].substring, concrete.1)
XCTAssertEqual(aro["fieldB"]!.substring, concrete.2)
XCTAssertEqual(aro["fieldB"]!.substring, concrete.fieldB)
XCTAssertEqual(aro[2].substring, concrete.2)
}
private func checkSame(
_ aro: Regex<AnyRegexOutput>.Match,
_ concrete: Regex<(Substring, fieldA: Substring, fieldB: Substring)>.Match
) {
checkSame(aro.output, concrete.output)
XCTAssertEqual(aro.0, concrete.0)
XCTAssertEqual(aro[0].substring, concrete.0)
XCTAssertEqual(aro["fieldA"]!.substring, concrete.1)
XCTAssertEqual(aro["fieldA"]!.substring, concrete.fieldA)
XCTAssertEqual(aro[1].substring, concrete.1)
XCTAssertEqual(aro["fieldB"]!.substring, concrete.2)
XCTAssertEqual(aro["fieldB"]!.substring, concrete.fieldB)
XCTAssertEqual(aro[2].substring, concrete.2)
}
private func checkSame(
_ aro: Regex<AnyRegexOutput>,
_ concrete: Regex<(Substring, fieldA: Substring, fieldB: Substring)>
) {
XCTAssertEqual(
aro.contains(captureNamed: "fieldA"),
concrete.contains(captureNamed: "fieldA"))
XCTAssertEqual(
aro.contains(captureNamed: "fieldB"),
concrete.contains(captureNamed: "fieldB"))
XCTAssertEqual(
aro.contains(captureNamed: "notAField"),
concrete.contains(captureNamed: "notAField"))
}
extension RegexTests {
func testAnyRegexOutput() {
let regex = try! Regex(#"""
(?x)
(?<fieldA> [^,]*)
,
(?<fieldB> [^,]*)
"""#)
let match = "abc,def".wholeMatch(of: regex)!
XCTAssertEqual(match.0, "abc,def")
XCTAssertEqual(match[0].substring, "abc,def")
XCTAssertEqual(match["fieldA"]!.substring, "abc")
XCTAssertEqual(match.output["fieldA"]!.substring, "abc")
XCTAssertEqual(match[1].substring, "abc")
XCTAssertEqual(match["fieldB"]!.substring, "def")
XCTAssertEqual(match.output["fieldB"]!.substring, "def")
XCTAssertEqual(match[2].substring, "def")
XCTAssertNil(match["notACapture"])
XCTAssertNil(match.output["notACapture"])
XCTAssertEqual(match.count, 3)
XCTAssert(regex.contains(captureNamed: "fieldA"))
XCTAssert(regex.contains(captureNamed: "fieldB"))
XCTAssertFalse(regex.contains(captureNamed: "notAField"))
// MARK: Check equivalence with concrete
let regexConcrete:
Regex<(Substring, fieldA: Substring, fieldB: Substring)>
= try! Regex(#"""
(?x)
(?<fieldA> [^,]*)
,
(?<fieldB> [^,]*)
"""#)
checkSame(regex, regexConcrete)
let matchConcrete = "abc,def".wholeMatch(of: regexConcrete)!
checkSame(match, matchConcrete)
let output = match.output
let concreteOutput = matchConcrete.output
checkSame(output, concreteOutput)
// TODO: ARO init from concrete match tuple
let concreteOutputCasted = output.extractValues(
as: (Substring, fieldA: Substring, fieldB: Substring).self
)!
checkSame(output, concreteOutputCasted)
var concreteOutputCopy = concreteOutput
concreteOutputCopy = output.extractValues()!
checkSame(output, concreteOutputCopy)
// TODO: Regex<ARO>.Match: init from tuple match and as to tuple match
// TODO: Regex<ARO>: init from tuple regex and as cast to tuple regex
}
func testDynamicCaptures() throws {
do {
let regex = try Regex("aabcc.")
let line = "aabccd"
let match = try XCTUnwrap(line.wholeMatch(of: regex))
XCTAssertEqual(match.0, line[...])
let output = match.output
XCTAssertEqual(output[0].substring, line[...])
}
do {
let regex = try Regex(
#"""
(?<lower>[0-9A-F]+)(?:\.\.(?<upper>[0-9A-F]+))?\s+;\s+(?<desc>\w+).*
"""#)
let line = """
A6F0..A6F1 ; Extend # Mn [2] BAMUM COMBINING MARK KOQNDON..BAMUM \
COMBINING MARK TUKWENTIS
"""
let match = try XCTUnwrap(line.wholeMatch(of: regex))
XCTAssertEqual(match.0, line[...])
let output = match.output
XCTAssertEqual(output[0].substring, line[...])
XCTAssertTrue(output[1].substring == "A6F0")
XCTAssertTrue(output["lower"]?.substring == "A6F0")
XCTAssertTrue(output[2].substring == "A6F1")
XCTAssertTrue(output["upper"]?.substring == "A6F1")
XCTAssertTrue(output[3].substring == "Extend")
XCTAssertTrue(output["desc"]?.substring == "Extend")
let typedOutput = try XCTUnwrap(
output.extractValues(
as: (Substring, lower: Substring, upper: Substring?, Substring).self))
XCTAssertEqual(typedOutput.0, line[...])
XCTAssertTrue(typedOutput.lower == "A6F0")
XCTAssertTrue(typedOutput.upper == "A6F1")
XCTAssertTrue(typedOutput.3 == "Extend")
// Extracting as different argument labels is allowed
let typedOutput2 = try XCTUnwrap(
output.extractValues(
as: (Substring, first: Substring, Substring?, third: Substring).self))
XCTAssertEqual(typedOutput2.0, line[...])
XCTAssertTrue(typedOutput2.first == "A6F0")
XCTAssertTrue(typedOutput2.2 == "A6F1")
XCTAssertTrue(typedOutput2.third == "Extend")
}
}
}
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