using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace AlphanumericSorter { class Program { static void Main(string[] args) { string[] highways = new string[] { "P-1", "P-2", "P-10", "P-11" }; // // We want to sort a string array called highways in an // alphanumeric way. Call the static Array.Sort method. // Array.Sort(highways, new AlphanumComparatorFast()); // // Display the results // foreach (string h in highways) { Console.WriteLine(h); } Console.Read(); } } public class AlphanumComparatorFast : IComparer { public int Compare(object x, object y) { string s1 = x as string; if (s1 == null) { return 0; } string s2 = y as string; if (s2 == null) { return 0; } int len1 = s1.Length; int len2 = s2.Length; int marker1 = 0; int marker2 = 0; // Walk through two the strings with two markers. while (marker1 < len1 && marker2 < len2) { char ch1 = s1[marker1]; char ch2 = s2[marker2]; // Some buffers we can build up characters in for each chunk. char[] space1 = new char[len1]; int loc1 = 0; char[] space2 = new char[len2]; int loc2 = 0; // Walk through all following characters that are digits or // characters in BOTH strings starting at the appropriate marker. // Collect char arrays. do { space1[loc1++] = ch1; marker1++; if (marker1 < len1) { ch1 = s1[marker1]; } else { break; } } while (char.IsDigit(ch1) == char.IsDigit(space1[0])); do { space2[loc2++] = ch2; marker2++; if (marker2 < len2) { ch2 = s2[marker2]; } else { break; } } while (char.IsDigit(ch2) == char.IsDigit(space2[0])); // If we have collected numbers, compare them numerically. // Otherwise, if we have strings, compare them alphabetically. string str1 = new string(space1); string str2 = new string(space2); int result; if (char.IsDigit(space1[0]) && char.IsDigit(space2[0])) { int thisNumericChunk = int.Parse(str1); int thatNumericChunk = int.Parse(str2); result = thisNumericChunk.CompareTo(thatNumericChunk); } else { result = str1.CompareTo(str2); } if (result != 0) { return result; } } return len1 - len2; } } }
My sharing and discussion of topics in C#, WCF, WPF, Winforms, SQL, ASP.Net, Windows Service, Java Script .... with you all.
Wednesday, March 2, 2016
Alphanumeric sorting using C#
Awesome Technologies 2016
Sharing a glimpse of awesome new technologies of 2016.
Have a look of these cool technologies:
- HoloLens
- Project Jacquard
- Hoverboard,
- 3D Simo Mini
- Holus
- Pepper
- PIECE
- Project Soli
All these technologies are pretty exciting and hope make our world more comfortable and enjoyable!
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