Replace carets with HTML superscript markup using Java
str.replaceAll(“\\^([0-9]+)”, “<sup>$1</sup>”);
regex
Regex to remove last / if it exists as the last character in the string
string = string.replace(/\/$/, “”); $ marks the end of a string. \/ is a RegExp-escaped /. Combining both = Replace the / at the end of a line.
Regex for French telephone numbers
You can use: ^ (?:(?:\+|00)33|0) # Dialing code \s*[1-9] # First number (from 1 to 9) (?:[\s.-]*\d{2}){4} # End of the phone number $ See demo It allows whitespaces or . or – as a separator, or no separator at all
How to prepend a zero in front of any number below 10 in Javascript using Regexp
Just add the leading 0 every time, then use slice(-2) to get the last two characters, like so: (‘0’ + currentDate.getHours()).slice(-2)
Regular expressions C# – is it possible to extract matches while matching?
You can use regex groups to accomplish that. For example, this regex: (\d\d\d)-(\d\d\d\d\d\d\d) Let’s match a telephone number with this regex: var regex = new Regex(@”(\d\d\d)-(\d\d\d\d\d\d\d)”); var match = regex.Match(“123-4567890”); if (match.Success) …. If it matches, you will find the first three digits in: match.Groups[1].Value And the second 7 digits in: match.Groups[2].Value P.S. In C#, … Read more
Regular expression “^[a-zA-Z]” or “[^a-zA-Z]”
Yes, the first means “match all strings that start with a letter”, the second means “match all strings that contain a non-letter”. The caret (“^”) is used in two different ways, one to signal the start of the text, one to negate a character match inside square brackets.
Keep only numeric value from a string?
You do any of the following: Use regular expressions. You can use a regular expression with either A negative character class that defines the characters that are what you don’t want (those characters other than decimal digits): private static readonly Regex rxNonDigits = new Regex( @”[^\d]+”); In which case, you can do take either of … Read more
Best way to get all digits from a string [duplicate]
Do you need to use a Regex? return new String(input.Where(Char.IsDigit).ToArray());
How to add features missing from the Java regex implementation?
From your edited example, I can now see what you would like. And you have my sympathies in this, too. Java’s regexes are a long, long, long ways from the convenience you find in Ruby or Perl. And they pretty much always will be; this cannot be fixed, so we’re stuck with this mess forever … Read more
Allow only numbers and dot in script
This is a great place to use regular expressions. By using a regular expression, you can replace all that code with just one line. You can use the following regex to validate your requirements: [0-9]*\.?[0-9]* In other words: zero or more numeric characters, followed by zero or one period(s), followed by zero or more numeric … Read more