java - 正则表达式删除方括号内的逗号和空格

Question

您好，我有一个如下所示的文件:

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

这就是我希望文件的样子

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

我已经尝试过 .replaceAll(",[?=[^()]*\\]]",":") 但这只是替换所有逗号而不是括号内的逗号。

Answer 1

看起来你想要

• 删除所有null
• 将 number, number, number 替换为 number:number:number，换句话说，将前面有数字的每个 , 替换为 :
• 删除[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));

输出:true。