arrays - Swift中的字符串前缀和后缀用“：”分隔

Question

在 Swift 中，我想提取 Prefix until space 和 Suffix until space 都用“：”分隔。如果字符串之间有空格，它应该是下一行。前任：

Apple: Fruit Tomato: Vegetable Iron: Material

结果需要作为

Apple: Fruit
Tomato: Vegetable
Iron: Material

请提供任何帮助

Answer 1

您可以使用正则表达式"(?<!:) "替换" "前面没有冒号标点符号的空格":"：

let string = "Apple: Fruit Tomato: Vegetable Iron: Material"
let pattern = "(?<!:) "
let result = string.replacingOccurrences(of: pattern, with: "\n", options: .regularExpression)
print(result)    // "Apple: Fruit\nTomato: Vegetable\nIron: Material\n"