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c#sortingunicodecjk

Sorting Japanese text by Katakana in C#

Is it possible to sort a list of Japanese strings by their Katakana?

Solution

  • Sure you can. If you use CultureInfo, you can make it so it doesn't bother looking for upper/lower-case.

    // Create CultureInfo
System.Globalization.CultureInfo ci = new System.Globalization.CultureInfo("ja-JP");
//Create the StringComparer
StringComparer cmp = StringComparer.Create(ci, true);

// Sort your array of string
Array.Sort(myArray, cmp);

    You can extend the functionality of the sort to not distinguish between Hiragana and Katakana if you like by doing this:

    //Create CultureInfo
System.Globalization.CultureInfo ci = new System.Globalization.CultureInfo("ja-JP");
// Set it so it ignores the kana type
CultureInfoCompare cmp =
new CultureInfoCompare(ci, System.Globalization.CompareOptions.IgnoreKanaType);
    
//Sort it
Array.Sort(myArray, cmp);

    頑張ってください！