regular expressions

[shades44]

Hi,

I'm trying to use Regular Expressions to search for this pattern --> [#] (basically a number in square brackets). I cant seem to create the correct search string to do that.

I have this: string pattern = "[[](/d)[]]";

Any help would be much appreciated!

shady

 

[cappmgr]

this
Match MyRegMatch = Regex.Match(_input,@"^\[\d+\]$");
would match only [0-9] must be one or more numbers

this
Match MyRegMatch = Regex.Match(_input,@"^\w*\[\d+\]\w*$");
would match [0-9] inside 0 or more characters a-zA-Z0-9_

hth,
Marty

 

[shades44]

hi Marty,

what im trying to do is find occurences of [#] in a string and replace them with "" (delete them), for example,

string text = "the guy went[4] to china";
string pattern = ???
text = Regex.Replace(text, pattern, "");
text is now: "the guy went to china";

Neither one of @"^\[\d+\]$" or @"^\w*\[\d+\]\w*$" seemed to do that. I'm all out of ideas.

shady

 

[shades44]

i discovered something that i found very confusing.. i have this code..

when the input text is assigned programmatically and then inserted into the code :

string input = ....//code
input = Regex.Replace(input, @"\[\d+\]", "");

it doesnt find and remove [4], but when i find out what the actual string is and assign it literally it works:

string input = "the guy went[4] to china";
input = Regex.Replace(input, @"\[\d+\]", "");
input now is --> "the guy went to china"


why should there be any difference in the two scenarios? can anyone explain this

shady

 

[cappmgr]

shady, not sure what you mean, this is a small test stub that takes the string from the console input and writes it out and I also hard coded the line and got the same results.

using System;
using System.Text.RegularExpressions;
namespace StringTest
{
	class MainClass // Defining Class 
	{	
		public static void Main(string[] args) // Program Entry Point 
		{ 
			string _input;
			Console.Write("Enter string: ");
			_input = Console.ReadLine();
			while (!(_input.Equals("end")))
			{
				MainClass.mymatch(_input);
				Console.Write("Enter string: ");
				_input = Console.ReadLine();
			}				
		}
		public static void mymatch(string _input)
		{
//			_input = "the guy went[4] to china";
			_input = Regex.Replace(_input, @"\[\d+\]", "");
			Console.WriteLine(_input);
		}
	}
}

Marty