javascript - 正则表达式匹配双引号内的每个字符串并包含转义引号

Question

已经有很多类似的问题，但在我的情况下没有一个有效。我有一个在双引号内包含多个子字符串的字符串，这些子字符串可以包含转义的双引号。
例如对于字符串 '然后，“这是一些带有引号和\”转义引号\”的示例文本”。并不是说我们需要更多，而是……“这是“另一个”。以防万一。' ，预期结果是一个有两个元素的数组；

"this is some sample text with quotes and \"escaped quotes\" inside"

"here is \"another\" one"

/"(?:\\"|[^"])*"/g正则表达式在 regex101 上按预期工作;但是，当我使用 String#match()结果是不同的。看看下面的片段:

let str = 'And then, "this is some sample text with quotes and \"escaped quotes\" inside". Not that we need more, but... "here is \"another\" one". Just in case.'
let regex = /"(?:\\"|[^"])*"/g

console.log(str.match(regex))

我得到了四个，而不是两个匹配，并且转义引号内的文本甚至不包括在内。
MDN mentions如果 g使用 flag 时，将返回所有匹配完整正则表达式的结果，但不会返回捕获组。如果我想获取捕获组并设置了全局标志，我需要使用 RegExp.exec() .我试过了，结果是一样的:

let str = 'And then, "this is some sample text with quotes and \"escaped quotes\" inside". Not that we need more, but... "here is \"another\" one". Just in case.'
let regex = /"(?:\\"|[^"])*"/g
let temp
let matches = []

while (temp = regex.exec(str))
  matches.push(temp[0])

console.log(matches)

我怎样才能得到一个包含这两个匹配元素的数组？

Answer 1

另一种选择是没有 | 的更优化的正则表达式。运算符(operator):

const str = String.raw`And then, "this is some sample text with quotes and \"escaped quotes\" inside". Not that we need more, but... "here is \"another\" one". Just in case.`
const regex = /"[^"\\]*(?:\\[\s\S][^"\\]*)*"/g
console.log(str.match(regex))

使用 String.raw ，不需要两次转义引号。
见 regex proof .顺便说一句， 28 steps与 267 steps .
解释

--------------------------------------------------------------------------------
  "                        '"'
--------------------------------------------------------------------------------
  [^"\\]*                  any character except: '"', '\\' (0 or more
                           times (matching the most amount possible))
--------------------------------------------------------------------------------
  (?:                      group, but do not capture (0 or more times
                           (matching the most amount possible)):
--------------------------------------------------------------------------------
    \\                       '\'
--------------------------------------------------------------------------------
    [\s\S]                   any character of: whitespace (\n, \r,
                             \t, \f, and " "), non-whitespace (all
                             but \n, \r, \t, \f, and " ")
--------------------------------------------------------------------------------
    [^"\\]*                  any character except: '"', '\\' (0 or
                             more times (matching the most amount
                             possible))
--------------------------------------------------------------------------------
  )*                       end of grouping
--------------------------------------------------------------------------------
  "                        '"'