RegEx用逗号分隔一个字符串，用空格忽略逗号 [英] RegEx for split a string with comma ignoring comma with a space

问题描述

我需要编写一个正则表达式来用逗号分隔一个字符串，而不是用空格逗号。我写了一个，但它没有用。

I need to write a regular expression to split a string with comma but not comma with space.I wrote one , but it did not work out.

例如：

String testString = "CONGO, THE DEMOCRATIC REPUBLIC OF THE,IRAN, ISLAMIC REPUBLIC OF,KOREA, DEMOCRATIC PEOPLE S REPUBLIC OF,NEPAL,NEW ZEALAND,SRI LANKA";

预期结果：

1. CONGO，民主共和国


2. 伊朗，伊斯兰共和国


3. 朝鲜民主主义人民共和国


4. NEPAL


5. NEW ZEALAND


6. SRI LANKA

1. CONGO, THE DEMOCRATIC REPUBLIC OF THE
2. IRAN, ISLAMIC REPUBLIC OF
3. KOREA, DEMOCRATIC PEOPLE S REPUBLIC OF
4. NEPAL
5. NEW ZEALAND
6. SRI LANKA

我的代码：

public class TestRegEx {
    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        String testString = "CONGO, THE DEMOCRATIC REPUBLIC OF THE,IRAN, ISLAMIC REPUBLIC OF,KOREA, DEMOCRATIC PEOPLE S REPUBLIC OF,NEPAL,NEW ZEALAND,SRI LANKA";
        String[] output = testString.split("([,][^(,\\s)])+");
        for (String country : output) {
            System.out.println(country);
        }
    }
}

输出：

1. CONGO，民主共和国


2. RAN，ISLAMIC REPUBLIC OF


3. OREA，民主人士共和国


4. EPAL


5. EW ZEALAND


6. RI LANKA

1. CONGO, THE DEMOCRATIC REPUBLIC OF THE
2. RAN, ISLAMIC REPUBLIC OF
3. OREA, DEMOCRATIC PEOPLE S REPUBLIC OF
4. EPAL
5. EW ZEALAND
6. RI LANKA

推荐答案

,(?!\s)

说明：

匹配任何未遵循的逗号by whitespace。

Match any comma that is not followed by whitespace.

请点击此处查看： http：/ /regex101.com/r/gW3hJ8

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