Scala:匹配特殊字符 [英] Scala: matching special characters

问题描述

在 Scala 中，我需要测试字符串是否具有以下任何特殊"字符:!@#\$^%&*()_-\+={}[]|;:"'<,>.?/

In Scala I need to test if a string has any of the following 'special' characters: !@#\$^%&*()_-\+={}[]|;:"'<,>.?/

我不能简单地使用 'nonword' "\\W" 正则表达式，因为字符串可能包含正则表达式 "\\W" 也匹配.尝试使用正则表达式:

I can not simply use 'nonword' "\\W" regex for this because string may have Cyrillic characters that regex "\\W" matches as well. Trying to use regex:

new Regex("""~`!@#\$^%&*()_-\+={}[]|;:"'<,>.?/""")

导致异常:

 java.util.regex.PatternSyntaxException: Illegal repetition near index 17 ~`!@#\$^%&*()_-\+={}[]|;:"'<,>.?/
                                                                                           ^
at java.util.regex.Pattern.error(Pattern.java:1924)
at java.util.regex.Pattern.closure(Pattern.java:3104)
at java.util.regex.Pattern.sequence(Pattern.java:2101)

有什么想法吗?

推荐答案

需要把所有的特殊字符都放到字符类中.

You need to put all the special characters into character class.

[~!@#$^%&*\\(\\)_+={}\\[\\]|;:\"'<,>.?`/\\\\-]

如果你还想添加空间，那么应该是

If you want to add space also, then it should be

[~!@#$^%&*\\(\\)_+={}\\[\\]|;:\"'<,>.?` /\\\\-]

这篇关于Scala:匹配特殊字符的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！