Question

如何使用正则表达式过滤掉列入黑名单（淫秽）单词的列表，以便如果列出黑名单的话就像'比尔约瑟夫'

 Then 'I am Bill Josephine' is valid
    but 'I am Bill Joseph.' is invalid
        'I am Bill Joseph,' is invalid
        'I am Bill Joseph ' invalid
        'I am Bill Joseph<any non alphanumeric>' is invalid.

    Similarly 'I am .Bill Joseph' is invalid
              'I am <any non alphanumeric>Bill Joseph' is invalid.

Answer 1

简单，这有效：

String badStrRegex = "\\WBill Joseph\\W?";
Pattern pattern = Pattern.compile(badStrRegex);
Matcher m = pattern.matcher(testStr);  //testStr is your string under test
boolean isBad = m.find();

有效!!测试了所有输入。

Answer 2

使用字母数字字符类的否定：

“[^ A-Za-z0-9] Bill Joseph [^ A-Za-z0-9]”

使用“\ W”代替“[^ A-Za-z0-9]”在大多数情况下都有效，除非在名称之前/之后有下划线。所以“Bill Joseph_”仍然被视为有效。

Answer 3

确保单词边界".*\\b" + badWord + "\\b.*"

包围

正则表达式从句子中删除列入黑名单的单词

3 个答案: