javascript - 通过正则表达式拆分是重复参数 NodeJs

Question

我正在通过正则表达式拆分代码，它正在做(某种程度上)正确的事情……直到字符串结束。这会是我的正则表达式的问题吗？如果是这样，我该如何解决？

代码:

let args = line.split(/\s(?=(([^"]*"){2})*[^"]*$)/);
console.log("LINE: "+line)
console.log("SPLIT: "+JSON.stringify(args))

输出:

LINE: var String: test = "Hello"
SPLIT: ["var","String: test = \"Hello\"","Hello\"","String:","test = \"Hello\"","Hello\"","test","= \"Hello\"","Hello\"","=","\"Hello\"","Hello\"","\"Hello\""]

预期输出:

LINE: var String: test = "Hello"
SPLIT: ["var", "String:", "test", "=", "\"Hello\""]

Answer 1

我会使用 String.match(regex) 而不是 String.split(regex)。我会设计一个具有以下特征的正则表达式:

• 捕获=，或者
• 捕获带引号的字符串，或者
• 捕获不带引号的字母串
• 并添加一个可选的 ':' 后缀

例如

let line = `var String: test = "Hello"`;
let m = line.match(/(=|"[^"]*"|\w+):?/g);
console.log(m);
// [ "var", "String:", "test", "=", "\"Hello\"" ]