To match a single character (or multiple characters) zero or more times, use".*"pattern. To match multiple characters or a given set of characters, use the character classes. 1. Match Any Character By default, the'.'dot character in a regular expression matches a single character without r...
[Character set.Match any character in the set. \sWhitespace.Matches any whitespace character (spaces, tabs, line breaks). \SNot whitespace.Matches any character that is not a whitespace character (spaces, tabs, line breaks). ] +Quantifier.Match 1 or more of the preceding token....
RegExr is an online tool to learn, build, & test Regular Expressions (RegEx / RegExp). Supports JavaScript & PHP/PCRE RegEx. Results update in real-time as you type. Roll over a match or expression for details. Validate patterns with suites of Tests. Save & share expressions with other...
Use the match_regex function to match whole input strings to the pattern that you specify with regular expressions and flags.
Regex Debugger Export Matches Explanation 1st Alternative (.*(!)$) 1st Capturing Group (.*(!)$) . matches any character (except for line terminators) *matches the previous token betweenzeroandunlimitedtimes, as many times as possible, giving back as needed(greedy) ...
I need to match+,-,.,/or a digit. Since all characters from-to9are inthe ASCII range I needI used@"[+\--9]"(i.e. "match+or any single character from-to9") as the Regex pattern. However, the following expression: System.Text.RegularExpressions.Regex.IsMatch(input:"3",pattern:@...
If the Regex.Match method fails to match the regular expression pattern, it returns a Match object that is equal to Match.Empty. You can use the Success property to determine whether the match was successful. The following example provides an illustration....
usingSystem;usingSystem.Text.RegularExpressions;publicclassExample{publicstaticvoidMain(){stringpattern ="--(.+?)--";stringreplacement ="($1)";stringinput ="He said--decisively--that the time--whatever time it was--had come.";foreach(Match matchinRegex.Matches(input, pattern)) {stringresult...
matches any character except for the newline (for historical reasons). So if you wish for . to match \n as well, you can precede your regex with (?s), which turns all the dotall mode, see http://userguide.icu-project.org/strings/regexp Therefore, preferably the regex could be like...
; foreach (Match match in Regex.Matches(input, pattern)) { string result = match.Result(replacement); Console.WriteLine(result); } } } // The example displays the following output: // (decisively) // (whatever time it was) The regular expression pattern --(.+?)-- is interpreted as...