Javascript 使用正則表達式在不同的特定字符處拆分字符串

Question

我有以下字符串

Name=(Last, First), Age=(31 year, 6 months, 3 day), Height= 6.1 ft, Employment=None, Email Address =/NA/, Mobile=XXXX

我想將它們拆分為以下內容以構建字典

Name: "(Last, First)"
Age: "(31 year, 6 months, 3 day)"
Height: " 6.1 ft"
...

我遇到了這篇文章並嘗試對其進行調整，但可以使用帶/不帶“（）”的鍵使其工作。 這是代碼或來自此鏈接。 感謝您的幫助，並隨時提出更簡單或替代的方法。

 txt="Name=(Last, First), Age=(31 year, 6 months, 3 day), Height= 6.1 ft, Employment=None, Email Address =/NA/, Mobile=XXXX" //var r = /.+?=.+?(?=(\([^)]+\),)|(.=)|$)/g; //var r = /.+?=.+?(?=(=(.*),)|$)/g; var r = /.+?=.+?(?=(\),)|(\d\b,)|$)/g; var obj = txt.match(r).reduce(function(obj, match) { var keyValue = match.split("="); obj[keyValue[0].replace(/,\s/g, '')] = keyValue[1]; return obj; }, {}); console.log(obj);

Answer 1

要匹配屬性和值，您可以使用：

(\w+)\s*=\s*(\([^)]+\)|[^,]+)

• (\w+) - 匹配並捕獲屬性（一個或多個單詞字符）
• \s*=\s* - 后跟可選空格、a =和更多可選空格
• (\([^)]+\)|[^,]+) - 匹配並捕獲：
  • \([^)]+\) - A ( ，后跟非)字符，后跟) ，或
  • [^,]+ - 非逗號字符

 const str = 'Name=(Last, First), Age=(31 year, 6 months, 3 day), Height= 6.1 ft, Employment=None, Email Address =/NA/, Mobile=XXXX'; const obj = {}; for (const [, prop, val] of str.matchAll(/(\w+)\s*=\s*(\([^)]+\)|[^,]+)/g)) { obj[prop] = val; } console.log(obj);

如果輸入鍵也可能包含空格，則匹配除 a =之外的任何內容：

 const str = 'Employee Name=(Last, First), Person Age=(31 year, 6 months, 3 day), Height= 6.1 ft, Employment=None, Email Address =/NA/, Mobile=XXXX'; const obj = {}; for (const [, prop, val] of str.matchAll(/(\w[^=]+)\s*=\s*(\([^)]+\)|[^,]+)/g)) { obj[prop] = val; } console.log(obj);

如果您不能使用matchAll ，則使用exec手動迭代匹配項：

 const str = 'Name=(Last, First), Age=(31 year, 6 months, 3 day), Height= 6.1 ft, Employment=None, Email Address =/NA/, Mobile=XXXX'; const obj = {}; const pattern = /(\w+)\s*=\s*(\([^)]+\)|[^,]+)/g; let match; while (match = pattern.exec(str)) { const [, prop, val] = match; obj[prop] = val; } console.log(obj);

Answer 2

這是一種方法，使用智能前瞻僅根據正確的逗號有條件地拆分：

 var txt = "Name=(Last, First), Age=(31 year, 6 months, 3 day), Height= 6.1 ft, Employment=None, Email Address =/NA/, Mobile=XXXX" var map = {}; var parts = txt.split(/,\s*(?;[^(]*\))/). parts,forEach(function (item. index) { map[item.split(/=/)[0]] = item;split(/=/)[1]; }). console;log(map);

用於拆分的正則表達式需要解釋：

,\s*         match comma with optional whitespace
(?![^(]*\))  assert that we cannot lookahead and see a closing ) without
             first seeing an opening (

前瞻條件可防止匹配出現在(...)項內的逗號。 然后，一旦我們有了術語數組，我們就迭代並構建您想要的字典，將每個術語拆分為=以找到鍵和值。