javascript - 尝试在 JavaScript 正则表达式中重复捕获 block

Question

下面是我的 body 。基本上每个 block 都由一条线分隔，上面没有任何内容。每个 block 都有一个位于括号中的标题，然后可以具有任意数量的属性，其格式为左侧单词，然后等于，然后右侧单词。

[General]
StartWithLastProfile=0

[Profile0]
Name=default
IsRelative=1
Path=Profiles/vr10qb8s.default
Default=1

[Profile1]
Name=cleanER One Here
IsRelative=1
Path=Profiles/k46wtieb.cleanER One Here

我正在尝试获得 3 场比赛。每个应该看起来像:[整个匹配，标题，prop1，val1，propN，valN]

比赛1:

['[General]
StartWithLastProfile=0','General','StartWithLastProfile','0']

比赛2:

['[Profile0]
Name=default
IsRelative=1
Path=Profiles/vr10qb8s.default
Default=1','Profile0','Name','default','IsRelative','1','Path','Profiles/vr10qb8s.default','Default','1']

等等。

这是我的正则表达式:

       var patt = /\[.*\](?:\s+?([\S]+)=([\S]+)+/mg;
       var blocks = [];

       var match;
       while (match = patt.exec(readStr)) {
        console.log(match)
       }

但是这是吐出来​​的:[整个匹配，标题，propLAST，valLAST];。如果我将正则表达式 patt 中的最后一个 + 更改为 +？然后它给出[整个匹配，标题，propFIRST，valFIRST];。

这个正则表达式可以工作，但有一个花招:

var patt = /\[.*\](?:\s+?([\S]+)=([\S]+))(?:\s+?([\S]+)=([\S]+))?(?:\s+?([\S]+)=([\S]+))?(?:\s+?([\S]+)=([\S]+))?(?:\s+?([\S]+)=([\S]+))?/mg;

现在返回:

[ "[General]
StartWithLastProfile=0", "StartWithLastProfile", "0", undefined, undefined, undefined, undefined, undefined, undefined, undefined, 1 more… ]

[ "[Profile0]
Name=default
IsRelative=1
Path=Profiles/vr10qb8s.default
Default=1", "Name", "default", "IsRelative", "1", "Path", "Profiles/vr10qb8s.default", "Default", "1", undefined, 1 more… ]

[ "[Profile1]
Name=cleanER
IsRelative=1
Path=Profiles/k46wtieb.clean", "Name", "cleanER", "IsRelative", "1", "Path", "Profiles/k46wtieb.clean", undefined, undefined, undefined, 1 more… ]

我不想在最后出现那些不必要的未定义，并且此模式仅限于有多少个 (?:\s+?([\S]+)=([\S]+)) ？我粘贴在模式的末尾

Answer 1

LIVE DEMO

JavaScript 代码

string = string.split(/\n\n/g); // split along the double newline to get blocks

var matches = [];  // the complete matches array has `match1`, `match2`, etc.

string.forEach(function(elem, index){ // for each block
  var matchArr = [];               // make a matchArr

  matchArr.push(elem); // wholeMatch 

  elem.replace(/\[([a-z0-9]+)\]/i, function(match, $1){    
    matchArr.push($1); // get the title  
  });

  elem.replace(/([a-z]+)=(.+)/ig, function(match, $1, $2){
    matchArr.push($1); // property
    matchArr.push($2); // value
  });

  matches.push(matchArr);  // push the `match` in bigger `matches` array
});

console.log(matches); // get the whole matches array

// You can use `matches[0]` to get the 1st match, and so on.

希望有帮助!