Java用RegexOption.MULTILINE分割字符串

Question

我想用分號結尾的示例拆分以下Sql語句：

CREATE TABLE projects(
   id INTEGER PRIMARY KEY AUTOINCREMENT     NOT NULL,
   name           TEXT    NOT NULL,
   created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP
);

CREATE INDEX ix_tasks_project_id ON tasks (project_id);

SELECT * FROM projects WHERE name = "someName;WithSemiColon";

類似於： string.split(";$"); （但使用RegexOption.MULTILINE ）

有人可以解釋我如何應用RegexOption嗎？

Answer 1

只需在正則表達式前面加上(?m)即可啟用標志MULTILINE因此在您的情況下為(?m);$

for (String s : string.split("(?m);$")) {
    System.out.printf("----> %s%n", s.trim());
}

輸出：

----> CREATE TABLE projects(
   id INTEGER PRIMARY KEY AUTOINCREMENT     NOT NULL,
   name           TEXT    NOT NULL,
   created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP
)
----> CREATE INDEX ix_tasks_project_id ON tasks (project_id)
----> SELECT * FROM projects WHERE name = "someName;WithSemiColon"