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10-15-2009, 11:59 AM
| #1 |
| Registered User Join Date: Oct 2009
Posts: 3
|  regex to capture everything before string OR string I know this is possibly number 206:th question about regex on the internet in the last hour but... I'm having trouble with these kinds of strings: The Matrix.dvdrip.xvid and Shrek.xvid.dvdrip I'm trying to extract the title to get the results The.Matrix. and Shrek. The problem is that I (sort of) know what "tags" that can occur, but not in what order. I know that there are other (simple) solutions in C# but I'm trying to learn about regular expressions, and believe me I've learned a lot when trying to find a solution to this problem. Last edited by drygnet; 10-15-2009 at 12:02 PM. |
| drygnet is offline |  |
|
10-15-2009, 12:40 PM
| #2 |
| Registered User Join Date: Mar 2009 Location: england
Posts: 76
| I believe something like this should work... Code: using System;
using System.Text.RegularExpressions;
namespace ConsoleApplication5
{
class Program
{
static void Main()
{
String filename1 = "The.Matrix.dvdrip.xvid";
Console.WriteLine(filename1 + " = " + GetName(filename1));
String filename2 = "Shrek.xvid.dvdrip";
Console.WriteLine(filename2 + " = " + GetName(filename2));
Console.Read();
}
static String GetName(String text)
{
Regex regex = new Regex("([a-zA-Z0-9\\.]+?).(xvid\\.dvdrip|dvdrip\\.xvid)", RegexOptions.IgnoreCase);
Match match = regex.Match(text);
return match.Success ? match.Groups[1].Value : null;
}
}
}
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| theoobe is offline | |
|
10-15-2009, 01:15 PM
| #3 | |
| Registered User Join Date: Oct 2009
Posts: 3
| Quote:
Now I feel stupid for not saying that I don't know how many tags that can occur. The input string could also be Lord.of.the.rings.pal.TS.divx So I need to cut the string at the first occurrence of any of the words: pal,divx,xvid,dvdrip,ntsc,hdtv, and so on... If its just stupid/impossible to do this with regex, please tell me and I'll make a loop :-) | |
| drygnet is offline | |
|
10-15-2009, 02:15 PM
| #4 |
| Registered User Join Date: Mar 2009 Location: england
Posts: 76
| Code: using System;
using System.Text.RegularExpressions;
namespace ConsoleApplication5
{
class Program
{
static void Main()
{
String filename1 = "The.Matrix.dvdrip.xvid";
Console.WriteLine(filename1 + " = " + GetName(filename1));
String filename2 = "Shrek.xvid.dvdrip";
Console.WriteLine(filename2 + " = " + GetName(filename2));
String filename3 = "Lord.of.the.rings.pal.TS.divx";
Console.WriteLine(filename3 + " = " + GetName(filename3));
Console.Read();
}
static String GetName(String text)
{
Regex regex = new Regex("([a-zA-Z0-9\\.]+?).(pal|divx|xvid|dvdrip|ntsc|hdtv)", RegexOptions.IgnoreCase);
Match match = regex.Match(text);
return match.Success ? match.Groups[1].Value : null;
}
}
}
|
| theoobe is offline | |
|
10-15-2009, 02:57 PM
| #5 |
| Registered User Join Date: Oct 2009
Posts: 3
| Thank you! Super fast and exactly what I was looking for ! I suspected I needed a non-greedy qualifier, but I've tested them on the second group (pal|ntcs... I feel like I'm much closer to actually understanding regex now again, thank you! |
| drygnet is offline | |
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| Tags |
| regex |
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