By default (as in example X+) Java regex quantifiers are greedy , the regex engine starts out by matching as many characters it can. We can change this default behavior by appending another metacharacter e.g. X+?.
Read moreHow do I check if a case is insensitive in regex?
If you want only part of the regex to be case insensitive (as my original answer presumed), then you have two options:
Read moreWhich function string is matches for regular expression given in pattern in case sensitive way?
If you want to find strings that matches a given regular expression pattern, we use the exec function .
Read moreWhat does this regex do?
A regular expression (shortened as regex or regexp; also referred to as rational expression) is a sequence of characters that specifies a search pattern in text . Usually such patterns are used by string-searching algorithms for “find” or “find and replace” operations on strings, or for input validation.
Read moreWhat are regex flags?
A flag is an optional parameter to a regex that modifies its behavior of searching . A flag changes the default searching behaviour of a regular expression. It makes a regex search in a different way. A flag is denoted using a single lowercase alphabetic character.
Read moreWhat does regex match return?
The Match(String) method returns the first substring that matches a regular expression pattern in an input string . For information about the language elements used to build a regular expression pattern, see Regular Expression Language – Quick Reference.
Read moreHow do you add or condition in regex?
This pattern will match:
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