多行宏的正则 记录基本单元

匹配长度为4的int数组
意思是匹配=号右边的这些字符：" [数字,数字,数字,数字] " 且中间没有空格
```
(?<=\=)\[\d+,\d+,\d+,\d+]
```
测试用例

The issue involves fixing a regex pattern to match a 4-element int array without spaces after the equals sign. Look at the tokenizer/parser code for macro handling, test with the provided example, and ensure the pattern captures '[1,2,3,4]' correctly. Check existing tests for regex patterns to understand the codebase.

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