C uses regular expression to realize the method of converting initials to uppercase
- 2021-08-17 00:41:17
- OfStack
In this paper, an example is given to describe the method of converting initials to uppercase by using regular expressions in C #. Share it for your reference, as follows:
class Program
{
static void Main(string[] args)
{
// Input strings.
const string s1 = "samuel allen";
const string s2 = "dot net perls";
const string s3 = "Uppercase first letters of all words in the string.";
// Write output strings.
Console.WriteLine(TextTools.UpperFirst(s1));
Console.WriteLine(TextTools.UpperFirst(s2));
Console.WriteLine(TextTools.UpperFirst(s3));
Console.ReadKey();
}
}
public static class TextTools
{
/// <summary>
/// Uppercase first letters of all words in the string.
/// </summary>
public static string UpperFirst(string s)
{
return Regex.Replace(s, @"\b[a-z]\w+", delegate(Match match)
{
string v = match.ToString();
return char.ToUpper(v[0]) + v.Substring(1);
});
}
}
PS: Here are two very convenient regular expression tools for your reference:
JavaScript Regular Expression Online Test Tool:
http://tools.ofstack.com/regex/javascript
Regular expression online generation tool:
http://tools.ofstack.com/regex/create_reg
I hope this article is helpful to everyone's C # programming.