我有一个看起来像这样的java字符串;
(fname:jon)(lname:doe)(guaranteer: Sam (W) Willis)(age:35)(addr:1 Turnpike Plaza)(favcolor:blue)
我想将此字符串与分隔符(fname:jon)<here>(lname:doe)
分开。
我尝试拆分正则表达式\)\(
,但它只是破坏了我的代码
arr = s.split("\\)\\(");
for (String a: arr) System.out.println(a);
输出
(fname:jon
lname:doe
guaranteer: Sam (W) Willis
age:35
addr:1 Turnpike Plaza
favcolor:blue)
我也看过这个问题:How to split a string, but also keep the delimiters?,但它没有帮助,因为在我的情况下,我想保持分隔符)(
和分割分隔符,即第一个括号应该是第一个结果,第二个是第二个结果。
我使用的正则表达式是s.split("(?<=\\)\\()")
并且它给出了输出:
(fname:jon)(
lname:doe)(
guaranteer: Sam (W) Willis)(
age:35)(
addr:1 Turnpike Plaza)(
favcolor:blue)
这是我想要的输出:
(fname:jon)
(lname:doe)
(guaranteer: Sam (W) Willis)
(age:35)
(addr:1 Turnpike Plaza)
(favcolor:blue)
答案 0 :(得分:8)
你可以使用正向前瞻和正面观察分割你的字符串,如下所示:
RegEx (?<=\))(?=\()
(?<=\))
正向后观,表示结束括号应位于分割位置之前。(?=\()
正向前瞻,表示开括号应该遵循该分割位置。<强>输出强>
(fname:jon)
(lname:doe)
(guaranteer: Sam (W) Willis)
(age:35)
(addr:1 Turnpike Plaza)
(favcolor:blue)
<强>代码强>
String s = "(fname:jon)(lname:doe)(guaranteer: Sam (W) Willis)(age:35)(addr:1 Turnpike Plaza)(favcolor:blue)";
String arr[] = s.split("(?<=\\))(?=\\()");
for (String a: arr) System.out.println(a);
答案 1 :(得分:7)
您可以使用正向后视和否定前瞻来实现此目标:
public static void main(String[] args) throws Exception {
String s = "(fname:jon)(lname:doe)(guaranteer: Sam (W) Willis)(age:35)"
+ "(addr:1 Turnpike Plaza)(favcolor:blue)";
String[] arr = s.split("(?<=\\)(?!\\s))"); // positive lookbehind for ")" and negative lookahead for "space"
for (String str : arr) {
System.out.println(str);
}
}
O / P:
(fname:jon)
(lname:doe)
(guaranteer: Sam (W) Willis)
(age:35)
(addr:1 Turnpike Plaza)
(favcolor:blue)