Verex is a verbal Regex builder, to help you build complex regular expressions by using readable C# or VB.NET code.
Use this command line in Package Manager:
PM> Install-Package Verex -Version 1.2.0
And then add these using statments to your code page:
using RegexBuilder;
using static RegexBuilder.Patterns;
using static RegexBuilder.Patterns.Symbols;
var ValidFirstChar = EnglishLetterOrHyphen;
var ValidChars = EnglishLetterOrHyphenOrDigit & '.' & '-';
var email = WordEdge
+ ValidFirstChar
+ ValidChars[0, 19]
+ "@"
+ ValidFirstChar
+ ValidChars[2, 14]
+ "."
+ ValidFirstChar
+ ValidChars[1, 9]
+ WordEdge;
textBox1.Text = email.ToString();
var vrx = new Verex(email);
var txt = "My email is msvbnet@hotmail.com .";
var m = vrx.Match(txt);
if (m.Success)
MessageBox.Show(m.Value);
The email Verex will generate:
\b[_a-zA-Z][_.\-a-zA-Z0-9]{0,19}@[_a-zA-Z][_.\-a-zA-Z0-9]{2,14}\.[_a-zA-Z][_.\-a-zA-Z0-9]{1,9}\b
var Name = (
InRange(('A', 'Z'), ('a', 'z'), ('0', '9')) & '-'
)[1,20];
var url = WordEdge +
("http" + "s".Maybe() + "://").NoneOrOnce() +
"www.".NoneOrOnce() +
Name + ("." + Name).NoneOrMany() +
"." + OptionsGroup(Text("com") | "org" | "net").IgnoreCase() +
Maybe(@"/") +
WordEdge;
textBox1.Text = url.Expression;
var vrx = new Verex(url, RegexOptions.IgnoreCase);
var txt = "My site is http://mhmdhmdy.blogspot.com/ .";
var m = vrx.Match(txt);
if (m.Success)
MessageBox.Show(m.Value);
The url Verex will generate:
\b(?:https?://)?(?:www\.)?[\-A-Za-z0-9]+(?:\.[\-A-Za-z0-9]+)*\.(?i-:com|org|net)/?\b
var validNo = (Maybe("1") + Digit[1, 2]) |
("2" +
(
(InRange('0', '4') + Digit) | ("5" + InRange('0', '5'))
)
);
var IP = WordEdge + validNo + ("." + validNo)[3] + WordEdge;
textBox1.Text = IP.Expression;
var vrx = new Verex(IP);
var txt = "My IP is 10.0.127.212 .";
var m = vrx.Match(txt);
if (m.Success)
MessageBox.Show(m.Value);
The Ip Verex will generate:
\b(?:1?\d{1,2}|2(?:[0-4]\d|5[0-5]))(?:\.(?:1?\d{1,2}|2(?:[0-4]\d|5[0-5]))){3}\b
string input = "((x + 2) * (4 + 3)) / 2";
var x = Verex.BalancedContents(input, "(", ")");
if (x == null)
Console.WriteLine("The ( ) are not balanced");
else
foreach (Content c in x)
Console.WriteLine(c.Value);
The output will be:
(x + 2) * (4 + 3)
x + 2
4 + 3