‏RegexBuilder DSL

لغة RegexBuilder

استيراد RegexBuilder

import RegexBuilder

let re = Regex {
    "ID-"
    OneOrMore(.digit)
}
print("ID-42".contains(re))

OneOrMore

import RegexBuilder

let number = Regex {
    OneOrMore(.digit)
}
if let m = "abc789".firstMatch(of: number) {
    print(m.0)
}

ZeroOrMore وOptionally

import RegexBuilder

let re = Regex {
    "color"
    Optionally("u")
    "r"
}
print("colour".wholeMatch(of: re) != nil)
print("color".wholeMatch(of: re) != nil)

Capture

import RegexBuilder

let re = Regex {
    "v"
    Capture { OneOrMore(.digit) }
}
if let m = "v123".wholeMatch(of: re) {
    print("Version: \(m.1)")
}

تحويل الالتقاطات

import RegexBuilder

let re = Regex {
    Capture {
        OneOrMore(.digit)
    } transform: { Int($0)! }
}
if let m = "42".wholeMatch(of: re) {
    let n: Int = m.1
    print(n + 1)
}

CharacterClass

import RegexBuilder

let re = Regex {
    One(.word)
    ZeroOrMore(("a"..."z"))
}
print("hello".contains(re))

المثبتات في الباني

import RegexBuilder

let re = Regex {
    Anchor.startOfLine
    OneOrMore(.digit)
    Anchor.endOfLine
}
print("100".wholeMatch(of: re) != nil)

مكونات قابلة لإعادة الاستخدام

import RegexBuilder

let field = Reference(Substring.self)
let re = Regex {
    Capture(as: field) { OneOrMore(.word) }
}
if let m = "name".firstMatch(of: re) {
    print(m[field])
}

التقاطات متعددة

import RegexBuilder

let date = Regex {
    Capture { Repeat(.digit, count: 4) }
    "-"
    Capture { Repeat(.digit, count: 2) }
}
if let m = "2024-05".wholeMatch(of: date) {
    print("\(m.1) / \(m.2)")
}

اختيار DSL أو التعبير الحرفي

import RegexBuilder

let re = Regex {
    "#"
    Capture { /[0-9a-fA-F]{6}/ }
}
if let m = "#FF8800".wholeMatch(of: re) {
    print("Hex: \(m.1)")
}

تحقق سريع

مراجعة