print out valid unicode identifier characters for dlang

unicode.d

import std.stdio;                                                                                                                          
import std.uni;                                                                                                                            
import std.conv; 
///Taken from https://github.com/dlang/dmd/blob/0517fc93ceb9e74e979bbbc9de64eb64d610094c/src/dmd/utf.d
static immutable wchar[2][] ALPHA_TABLE =
    [
        [0x00AA, 0x00AA],
        [0x00B5, 0x00B5],
        [0x00B7, 0x00B7],
        [0x00BA, 0x00BA],
        [0x00C0, 0x00D6],
        [0x00D8, 0x00F6],
        [0x00F8, 0x01F5],
        [0x01FA, 0x0217],
        [0x0250, 0x02A8],
        [0x02B0, 0x02B8],
        [0x02BB, 0x02BB],
        [0x02BD, 0x02C1],
        [0x02D0, 0x02D1],
        [0x02E0, 0x02E4],
        [0x037A, 0x037A],
        [0x0386, 0x0386],
        [0x0388, 0x038A],
        [0x038C, 0x038C],
        [0x038E, 0x03A1],
        [0x03A3, 0x03CE],
        [0x03D0, 0x03D6],
        [0x03DA, 0x03DA],
        [0x03DC, 0x03DC],
        [0x03DE, 0x03DE],
        [0x03E0, 0x03E0],
        [0x03E2, 0x03F3],
        [0x0401, 0x040C],
        [0x040E, 0x044F],
        [0x0451, 0x045C],
        [0x045E, 0x0481],
        [0x0490, 0x04C4],
        [0x04C7, 0x04C8],
        [0x04CB, 0x04CC],
        [0x04D0, 0x04EB],
        [0x04EE, 0x04F5],
        [0x04F8, 0x04F9],
        [0x0531, 0x0556],
        [0x0559, 0x0559],
        [0x0561, 0x0587],
        [0x05B0, 0x05B9],
        [0x05BB, 0x05BD],
        [0x05BF, 0x05BF],
        [0x05C1, 0x05C2],
        [0x05D0, 0x05EA],
        [0x05F0, 0x05F2],
        [0x0621, 0x063A],
        [0x0640, 0x0652],
        [0x0660, 0x0669],
        [0x0670, 0x06B7],
        [0x06BA, 0x06BE],
        [0x06C0, 0x06CE],
        [0x06D0, 0x06DC],
        [0x06E5, 0x06E8],
        [0x06EA, 0x06ED],
        [0x06F0, 0x06F9],
        [0x0901, 0x0903],
        [0x0905, 0x0939],
        [0x093D, 0x094D],
        [0x0950, 0x0952],
        [0x0958, 0x0963],
        [0x0966, 0x096F],
        [0x0981, 0x0983],
        [0x0985, 0x098C],
        [0x098F, 0x0990],
        [0x0993, 0x09A8],
        [0x09AA, 0x09B0],
        [0x09B2, 0x09B2],
        [0x09B6, 0x09B9],
        [0x09BE, 0x09C4],
        [0x09C7, 0x09C8],
        [0x09CB, 0x09CD],
        [0x09DC, 0x09DD],
        [0x09DF, 0x09E3],
        [0x09E6, 0x09F1],
        [0x0A02, 0x0A02],
        [0x0A05, 0x0A0A],
        [0x0A0F, 0x0A10],
        [0x0A13, 0x0A28],
        [0x0A2A, 0x0A30],
        [0x0A32, 0x0A33],
        [0x0A35, 0x0A36],
        [0x0A38, 0x0A39],
        [0x0A3E, 0x0A42],
        [0x0A47, 0x0A48],
        [0x0A4B, 0x0A4D],
        [0x0A59, 0x0A5C],
        [0x0A5E, 0x0A5E],
        [0x0A66, 0x0A6F],
        [0x0A74, 0x0A74],
        [0x0A81, 0x0A83],
        [0x0A85, 0x0A8B],
        [0x0A8D, 0x0A8D],
        [0x0A8F, 0x0A91],
        [0x0A93, 0x0AA8],
        [0x0AAA, 0x0AB0],
        [0x0AB2, 0x0AB3],
        [0x0AB5, 0x0AB9],
        [0x0ABD, 0x0AC5],
        [0x0AC7, 0x0AC9],
        [0x0ACB, 0x0ACD],
        [0x0AD0, 0x0AD0],
        [0x0AE0, 0x0AE0],
        [0x0AE6, 0x0AEF],
        [0x0B01, 0x0B03],
        [0x0B05, 0x0B0C],
        [0x0B0F, 0x0B10],
        [0x0B13, 0x0B28],
        [0x0B2A, 0x0B30],
        [0x0B32, 0x0B33],
        [0x0B36, 0x0B39],
        [0x0B3D, 0x0B43],
        [0x0B47, 0x0B48],
        [0x0B4B, 0x0B4D],
        [0x0B5C, 0x0B5D],
        [0x0B5F, 0x0B61],
        [0x0B66, 0x0B6F],
        [0x0B82, 0x0B83],
        [0x0B85, 0x0B8A],
        [0x0B8E, 0x0B90],
        [0x0B92, 0x0B95],
        [0x0B99, 0x0B9A],
        [0x0B9C, 0x0B9C],
        [0x0B9E, 0x0B9F],
        [0x0BA3, 0x0BA4],
        [0x0BA8, 0x0BAA],
        [0x0BAE, 0x0BB5],
        [0x0BB7, 0x0BB9],
        [0x0BBE, 0x0BC2],
        [0x0BC6, 0x0BC8],
        [0x0BCA, 0x0BCD],
        [0x0BE7, 0x0BEF],
        [0x0C01, 0x0C03],
        [0x0C05, 0x0C0C],
        [0x0C0E, 0x0C10],
        [0x0C12, 0x0C28],
        [0x0C2A, 0x0C33],
        [0x0C35, 0x0C39],
        [0x0C3E, 0x0C44],
        [0x0C46, 0x0C48],
        [0x0C4A, 0x0C4D],
        [0x0C60, 0x0C61],
        [0x0C66, 0x0C6F],
        [0x0C82, 0x0C83],
        [0x0C85, 0x0C8C],
        [0x0C8E, 0x0C90],
        [0x0C92, 0x0CA8],
        [0x0CAA, 0x0CB3],
        [0x0CB5, 0x0CB9],
        [0x0CBE, 0x0CC4],
        [0x0CC6, 0x0CC8],
        [0x0CCA, 0x0CCD],
        [0x0CDE, 0x0CDE],
        [0x0CE0, 0x0CE1],
        [0x0CE6, 0x0CEF],
        [0x0D02, 0x0D03],
        [0x0D05, 0x0D0C],
        [0x0D0E, 0x0D10],
        [0x0D12, 0x0D28],
        [0x0D2A, 0x0D39],
        [0x0D3E, 0x0D43],
        [0x0D46, 0x0D48],
        [0x0D4A, 0x0D4D],
        [0x0D60, 0x0D61],
        [0x0D66, 0x0D6F],
        [0x0E01, 0x0E3A],
        [0x0E40, 0x0E5B],
        [0x0E81, 0x0E82],
        [0x0E84, 0x0E84],
        [0x0E87, 0x0E88],
        [0x0E8A, 0x0E8A],
        [0x0E8D, 0x0E8D],
        [0x0E94, 0x0E97],
        [0x0E99, 0x0E9F],
        [0x0EA1, 0x0EA3],
        [0x0EA5, 0x0EA5],
        [0x0EA7, 0x0EA7],
        [0x0EAA, 0x0EAB],
        [0x0EAD, 0x0EAE],
        [0x0EB0, 0x0EB9],
        [0x0EBB, 0x0EBD],
        [0x0EC0, 0x0EC4],
        [0x0EC6, 0x0EC6],
        [0x0EC8, 0x0ECD],
        [0x0ED0, 0x0ED9],
        [0x0EDC, 0x0EDD],
        [0x0F00, 0x0F00],
        [0x0F18, 0x0F19],
        [0x0F20, 0x0F33],
        [0x0F35, 0x0F35],
        [0x0F37, 0x0F37],
        [0x0F39, 0x0F39],
        [0x0F3E, 0x0F47],
        [0x0F49, 0x0F69],
        [0x0F71, 0x0F84],
        [0x0F86, 0x0F8B],
        [0x0F90, 0x0F95],
        [0x0F97, 0x0F97],
        [0x0F99, 0x0FAD],
        [0x0FB1, 0x0FB7],
        [0x0FB9, 0x0FB9],
        [0x10A0, 0x10C5],
        [0x10D0, 0x10F6],
        [0x1E00, 0x1E9B],
        [0x1EA0, 0x1EF9],
        [0x1F00, 0x1F15],
        [0x1F18, 0x1F1D],
        [0x1F20, 0x1F45],
        [0x1F48, 0x1F4D],
        [0x1F50, 0x1F57],
        [0x1F59, 0x1F59],
        [0x1F5B, 0x1F5B],
        [0x1F5D, 0x1F5D],
        [0x1F5F, 0x1F7D],
        [0x1F80, 0x1FB4],
        [0x1FB6, 0x1FBC],
        [0x1FBE, 0x1FBE],
        [0x1FC2, 0x1FC4],
        [0x1FC6, 0x1FCC],
        [0x1FD0, 0x1FD3],
        [0x1FD6, 0x1FDB],
        [0x1FE0, 0x1FEC],
        [0x1FF2, 0x1FF4],
        [0x1FF6, 0x1FFC],
        [0x203F, 0x2040],
        [0x207F, 0x207F],
        [0x2102, 0x2102],
        [0x2107, 0x2107],
        [0x210A, 0x2113],
        [0x2115, 0x2115],
        [0x2118, 0x211D],
        [0x2124, 0x2124],
        [0x2126, 0x2126],
        [0x2128, 0x2128],
        [0x212A, 0x2131],
        [0x2133, 0x2138],
        [0x2160, 0x2182],
        [0x3005, 0x3007],
        [0x3021, 0x3029],
        [0x3041, 0x3093],
        [0x309B, 0x309C],
        [0x30A1, 0x30F6],
        [0x30FB, 0x30FC],
        [0x3105, 0x312C],
        [0x4E00, 0x9FA5],
        [0xAC00, 0xD7A3]
    ];
    
void main() {                                                                                                                              
    foreach (set; ALPHA_TABLE) {                                                                                                           
        foreach (i; set[0]..set[1]) {                                                                                                      
            write(cast(wchar)i);                                                                                                           
        }                                                                                                                                  
                                                                                                                                           
        writeln("");                                                                                                                       
    }                                                                                                                                      
}