正則表達式刪除方括號內的逗號和空格

Question

您好，我有一個看起來像這樣的文件：

year.", [229, 338], null, [1144, 2371]
year....", null, null, [812]
year:, null, null, [1019, 1028, 2463]
year;, null, [164], [1052]

這就是我想要的文件外觀

year.", 229:338, , 1144:2371
year....", , , 812
year:, , , 1019:1028:2463
year;, , 164, 1052

我已經嘗試過.replaceAll(",[?=[^()]*\\\\]]",":") but this is just replacing all of the commas not the ones inside of the bracket.

Answer 1

看來你想

• 刪除所有null
• 取代number, number, number與number:number:number ，換言之替換每個,其具有數字之前將其與:
• 刪除[和]

演示：

String input = 
        "year.\", [229, 338], null, [1144, 2371]\r\n" + 
        "year....\", null, null, [812]\r\n" + 
        "year:, null, null, [1019, 1028, 2463]\r\n" + 
        "year;, null, [164], [1052]";

String expected = 
        "year.\", 229:338, , 1144:2371\r\n" + 
        "year....\", , , 812\r\n" + 
        "year:, , , 1019:1028:2463\r\n" + 
        "year;, , 164, 1052";

input = input.replace("null", "")
             .replaceAll("(?<=\\d), ", ":")
             .replaceAll("\\[|\\]", "");

System.out.println(input.equals(expected));

輸出： true 。