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//===----------------------------------------------------------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2021 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
import GenUtils
enum GeneralCategory: String {
case uppercaseLetter = "Lu"
case lowercaseLetter = "Ll"
case titlecaseLetter = "Lt"
case modifierLetter = "Lm"
case otherLetter = "Lo"
case nonspacingMark = "Mn"
case spacingMark = "Mc"
case enclosingMark = "Me"
case decimalNumber = "Nd"
case letterNumber = "Nl"
case otherNumber = "No"
case connectorPunctuation = "Pc"
case dashPunctuation = "Pd"
case openPunctuation = "Ps"
case closePunctuation = "Pe"
case initialPunctuation = "Pi"
case finalPunctuation = "Pf"
case otherPunctuation = "Po"
case mathSymbol = "Sm"
case currencySymbol = "Sc"
case modifierSymbol = "Sk"
case otherSymbol = "So"
case spaceSeparator = "Zs"
case lineSeparator = "Zl"
case paragraphSeparator = "Zp"
case control = "Cc"
case format = "Cf"
case surrogate = "Cs"
case privateUse = "Co"
case unassigned = "Cn"
var binaryRepresentation: UInt8 {
switch self {
case .uppercaseLetter:
return 0
case .lowercaseLetter:
return 1
case .titlecaseLetter:
return 2
case .modifierLetter:
return 3
case .otherLetter:
return 4
case .nonspacingMark:
return 5
case .spacingMark:
return 6
case .enclosingMark:
return 7
case .decimalNumber:
return 8
case .letterNumber:
return 9
case .otherNumber:
return 10
case .connectorPunctuation:
return 11
case .dashPunctuation:
return 12
case .openPunctuation:
return 13
case .closePunctuation:
return 14
case .initialPunctuation:
return 15
case .finalPunctuation:
return 16
case .otherPunctuation:
return 17
case .mathSymbol:
return 18
case .currencySymbol:
return 19
case .modifierSymbol:
return 20
case .otherSymbol:
return 21
case .spaceSeparator:
return 22
case .lineSeparator:
return 23
case .paragraphSeparator:
return 24
case .control:
return 25
case .format:
return 26
case .surrogate:
return 27
case .privateUse:
return 28
case .unassigned:
return 29
}
}
}
func getGeneralCategory(
from data: String,
into result: inout [(ClosedRange<UInt32>, GeneralCategory)]
) {
for line in data.split(separator: "\n") {
// Skip comments
guard !line.hasPrefix("#") else {
continue
}
let info = line.split(separator: "#")
let components = info[0].split(separator: ";")
let filteredCategory = components[1].filter { !$0.isWhitespace }
guard let gc = GeneralCategory(rawValue: filteredCategory) else {
continue
}
let scalars: ClosedRange<UInt32>
let filteredScalars = components[0].filter { !$0.isWhitespace }
// If we have . appear, it means we have a legitimate range. Otherwise,
// it's a singular scalar.
if filteredScalars.contains(".") {
let range = filteredScalars.split(separator: ".")
scalars = UInt32(range[0], radix: 16)! ... UInt32(range[1], radix: 16)!
} else {
let scalar = UInt32(filteredScalars, radix: 16)!
scalars = scalar ... scalar
}
result.append((scalars, gc))
}
}
func emitGeneralCategory(
_ data: [(ClosedRange<UInt32>, GeneralCategory)],
into result: inout String
) {
emitCollection(
data,
name: "_swift_stdlib_generalCategory",
type: "__swift_uint64_t",
into: &result
) {
var value: UInt64 = UInt64($0.0.lowerBound)
let generalCategory = $0.1.binaryRepresentation
value |= UInt64(generalCategory) << 21
value |= UInt64($0.0.count - 1) << 32
return "0x\(String(value, radix: 16, uppercase: true))"
}
}
func generateGeneralCategory(into result: inout String) {
let derivedGeneralCategory = readFile("Data/DerivedGeneralCategory.txt")
var data: [(ClosedRange<UInt32>, GeneralCategory)] = []
getGeneralCategory(from: derivedGeneralCategory, into: &data)
emitGeneralCategory(flatten(data), into: &result)
}
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