(若该模式未开启,“.”表达式不匹配行终结符); UNICODE_CASE:UNICODE_CASE模式结合CASE_INSENSITIVE模式,那么它会对Unicode字符进行大小写不敏感的匹配。(若未开启UNICODE_CASE模式,仅开始CASE_INSENSITIVE模式,则只适用于US-ASCII字符集); CANON_EQ:当且仅当两个字符的正规分解都完全相同的情况下,则认定匹配。(默认...
Pattern.CASE_INSENSITIVE); 有关正则表达式的话题是非常丰富,而且复杂的,用Java来实现也非常广泛,则需要对regex包进行的彻底研究,我们在这里所讲的只是冰山一角。即使你对正则表达式比较陌生,使用regex包后会很快发现它强大功能和可伸缩性。如果你是个来自Perl或其他语言王国的老练的正则表达式的黑客,使用过regex包后,...
importjava.util.regex.Matcher;importjava.util.regex.Pattern;publicclassMain{publicstaticvoidmain(String[]args){Stringtext="Hello, world!";Stringpattern="hello";Patternp=Pattern.compile(pattern,Pattern.CASE_INSENSITIVE);Matcherm=p.matcher(text);if(m.find()){System.out.println("Match found!");}e...
在java中,如果要不区分大小写,那么在编译正则表达式时,可以指定: Patternpattern = Pattern.compile(regex, Pattern.CASE_INSENSITIVE); 1. 二、匹配任意字符 前面见到的正则表达式都是静态的纯文本,它们根本体现不出正则表达式的威力。下面,来看看如何使用正则表达式来匹配不可预知的字符。 在正则表达式中,特殊字符(或...
Use Java.Util.Regex.RegexOptions enum directly instead of this field. Enables case-insensitive matching. [Android.Runtime.Register("CASE_INSENSITIVE")] [System.Obsolete("This constant will be removed in the future version. Use Java.Util.Regex.RegexOptions enum directly instead of this field.", ...
CaseInsensitive Obsolete. Enables case-insensitive matching. Comments Obsolete. Permits whitespace and comments in pattern. Dotall Obsolete. Enables dotall mode. Literal Obsolete. Enables literal parsing of the pattern. Multiline Obsolete. Enables multiline mode. UnicodeCase Obsolete. En...
The resulting pattern can then be used to create a Matcher object that can match arbitrary java.lang.CharSequence character sequences against the regular expression. All of the state involved in performing a match resides in the matcher, so many matchers can share the same pattern....
importjava.util.regex.Matcher;importjava.util.regex.Pattern;publicclassMain{publicstaticvoidmain(String[]args){Patternpattern=Pattern.compile("w3schools",Pattern.CASE_INSENSITIVE);Matchermatcher=pattern.matcher("Visit W3Schools!");booleanmatchFound=matcher.find();if(matchFound){System.out.println("Matc...
CaseInsensitive Obsolete. Enables case-insensitive matching. Comments Obsolete. Permits whitespace and comments in pattern. Dotall Obsolete. Enables dotall mode. Literal Obsolete. Enables literal parsing of the pattern. Multiline Obsolete. Enables multiline mode. UnicodeCase Obsolete. En...
问使用Pattern.CASE_INSENSITIVE的Java RegEx性能EN当应用程序的新网页中包含不受信任的、未经恰当验证或...