我有一个表达式字符串
"((firstname = john AND Lastname = Eleven) OR (salary = 15000 AND location = Mexico OR (firstname = mathew AND lastname = Thirteen)))";
是否有任何内置函数我可以将它们拆分为List<String>以下格式：
list[0] = "(";
list[1] = "(";
list[2] = "firstname";
list[3] = "=";
list[4] = "john"
list[5] = "AND";
list[6] = "Lastname"
list[7] = "=";
list[8] = "Eleven";
list[9] = ")"
list[10] = "OR"
list[11] = "(";
list[12] = "salary";
list[13] = "15000"
list[14] = "AND"
etc...
您可以全部替换(或全部)替换，space $1 space然后用空格分割：
String spl[] =
str.replaceAll("([\\(\\)=])", " $1 ").replaceAll(" +", " ").trim().split("\\s");
输出
(, (, firstname, =, john, AND, Lastname, =, Eleven, ), OR, (, salary, =, 15000, AND,
location, =, Mexico, OR, (, firstname, =, mathew, AND, lastname, =, Thirteen, ), ), )
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