Naming Conventions
Characters Host Segment HTTP Token Note
A-Z, a-z, 0-9 Key Key Key
‘!’ (0x21) illegal Version reserved
‘"’ (0x22) illegal illegal illegal
‘#’ (0x23) illegal illegal reserved URL Fragment
‘$’ (0x24) illegal reserved reserved
‘%’ (0x25) escape escape escape Percent encode 2 hex digits
‘&’ (0x26) illegal reserved reserved URL Query separator
‘'’ (0x27) illegal reserved reserved
‘(’ (0x28) illegal reserved illegal old suffix - remove
‘)’ (0x29) illegal reserved illegal
‘*’ (0x2A) illegal reserved reserved
‘+’ (0x2B) illegal Number Number Segment Number
‘,’ (0x2C) illegal Part illegal Segment Part separator
‘-’ (0x2D) Key Time Time Segment Time: -YYYY-MM-DD-HH-MM-SS
‘.’ (0x2E) Separator Extension reserved URL Extension separator in first Segment
‘/’ (0x2F) illegal Separator illegal Segment separator in Path
‘:’ (0x3A) illegal reserved illegal
‘;’ (0x3B) illegal Fluff illegal Ignore until ‘.’
‘<’ (0x3C) illegal illegal illegal
‘=’ (0x3D) illegal reserved illegal
‘>’ (0x3E) illegal illegal illegal
‘?’ (0x3F) illegal Query illegal
‘[’ (0x5B) illegal illegal illegal
‘\’ (0x5C) illegal illegal illegal
‘]’ (0x5D) illegal illegal illegal
‘^’ (0x5E) illegal illegal reserved
‘_’ (0x5F) illegal Key Key
‘7B) illegal illegal illegal
‘|’ (0x7C) illegal illegal reserved
‘}’ (0x7D) illegal illegal illegal
‘~’ (0x7E) illegal Suffix Suffix Suffix until ‘.’, ‘=’, WS
‘DEL’ (0x7F) illegal illegal illegal
The Kozlowski FamilyKozlowski
􀀀 1048576 ● 0x100000 ● ‘􀀀’ ● UTF8: 0xF4 0x80 0x80 0x80

Plane: 0x10 ● Page: 0x0 ● Byte: 0x100000

Unicode Plane
0 1 2 3 4 5 6 7 8 9 A B C D E F 10
Unicode Page in Plane: 16
00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 10 11 12 13 14 15 16 17 18 19 1A 1B 1C 1D 1E 1F
20 21 22 23 24 25 26 27 28 29 2A 2B 2C 2D 2E 2F 30 31 32 33 34 35 36 37 38 39 3A 3B 3C 3D 3E 3F
40 41 42 43 44 45 46 47 48 49 4A 4B 4C 4D 4E 4F 50 51 52 53 54 55 56 57 58 59 5A 5B 5C 5D 5E 5F
60 61 62 63 64 65 66 67 68 69 6A 6B 6C 6D 6E 6F 70 71 72 73 74 75 76 77 78 79 7A 7B 7C 7D 7E 7F
80 81 82 83 84 85 86 87 88 89 8A 8B 8C 8D 8E 8F 90 91 92 93 94 95 96 97 98 99 9A 9B 9C 9D 9E 9F
A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 AA AB AC AD AE AF B0 B1 B2 B3 B4 B5 B6 B7 B8 B9 BA BB BC BD BE BF
C0 C1 C2 C3 C4 C5 C6 C7 C8 C9 CA CB CC CD CE CF D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 DA DB DC DD DE DF
E0 E1 E2 E3 E4 E5 E6 E7 E8 E9 EA EB EC ED EE EF F0 F1 F2 F3 F4 F5 F6 F7 F8 F9 FA FB FC FD FE FF
Unicode ● Plane: 0x10 ● Page: 0x0
0 1 2 3 4 5 6 7 8 9 A B C D E F
00 􀀀 􀀁 􀀂 􀀃 􀀄 􀀅 􀀆 􀀇 􀀈 􀀉 􀀊 􀀋 􀀌 􀀍 􀀎 􀀏
10 􀀐 􀀑 􀀒 􀀓 􀀔 􀀕 􀀖 􀀗 􀀘 􀀙 􀀚 􀀛 􀀜 􀀝 􀀞 􀀟
20 􀀠 􀀡 􀀢 􀀣 􀀤 􀀥 􀀦 􀀧 􀀨 􀀩 􀀪 􀀫 􀀬 􀀭 􀀮 􀀯
30 􀀰 􀀱 􀀲 􀀳 􀀴 􀀵 􀀶 􀀷 􀀸 􀀹 􀀺 􀀻 􀀼 􀀽 􀀾 􀀿
40 􀁀 􀁁 􀁂 􀁃 􀁄 􀁅 􀁆 􀁇 􀁈 􀁉 􀁊 􀁋 􀁌 􀁍 􀁎 􀁏
50 􀁐 􀁑 􀁒 􀁓 􀁔 􀁕 􀁖 􀁗 􀁘 􀁙 􀁚 􀁛 􀁜 􀁝 􀁞 􀁟
60 􀁠 􀁡 􀁢 􀁣 􀁤 􀁥 􀁦 􀁧 􀁨 􀁩 􀁪 􀁫 􀁬 􀁭 􀁮 􀁯
70 􀁰 􀁱 􀁲 􀁳 􀁴 􀁵 􀁶 􀁷 􀁸 􀁹 􀁺 􀁻 􀁼 􀁽 􀁾 􀁿
80 􀂀 􀂁 􀂂 􀂃 􀂄 􀂅 􀂆 􀂇 􀂈 􀂉 􀂊 􀂋 􀂌 􀂍 􀂎 􀂏
90 􀂐 􀂑 􀂒 􀂓 􀂔 􀂕 􀂖 􀂗 􀂘 􀂙 􀂚 􀂛 􀂜 􀂝 􀂞 􀂟
A0 􀂠 􀂡 􀂢 􀂣 􀂤 􀂥 􀂦 􀂧 􀂨 􀂩 􀂪 􀂫 􀂬 􀂭 􀂮 􀂯
B0 􀂰 􀂱 􀂲 􀂳 􀂴 􀂵 􀂶 􀂷 􀂸 􀂹 􀂺 􀂻 􀂼 􀂽 􀂾 􀂿
C0 􀃀 􀃁 􀃂 􀃃 􀃄 􀃅 􀃆 􀃇 􀃈 􀃉 􀃊 􀃋 􀃌 􀃍 􀃎 􀃏
D0 􀃐 􀃑 􀃒 􀃓 􀃔 􀃕 􀃖 􀃗 􀃘 􀃙 􀃚 􀃛 􀃜 􀃝 􀃞 􀃟
E0 􀃠 􀃡 􀃢 􀃣 􀃤 􀃥 􀃦 􀃧 􀃨 􀃩 􀃪 􀃫 􀃬 􀃭 􀃮 􀃯
F0 􀃰 􀃱 􀃲 􀃳 􀃴 􀃵 􀃶 􀃷 􀃸 􀃹 􀃺 􀃻 􀃼 􀃽 􀃾 􀃿
Unicode Charater Flags
Name Value
Flag: Alpha ASCII letter (‘A’-‘Z’, ‘a’-‘z’)
Flag: Alphanumeric ASCII letter or digit (‘0’-‘9’, ‘A’-‘Z’, ‘a’-‘z’)
Flag: Digit ASCII digit (‘0’-‘9’)
Flag: Domain Domain (‘-’, ‘0’-‘9’, ‘A’-‘Z’, ‘a’-‘z’, extended)
Flag: HTTP_Separator HTTP_Separator (HT (0x09)), SP (0x20), ‘'(),/:;<=>?@[\]’)
Flag: HTTP_Token HTTP_Token (‘!#$%&"*+-.^_`|~’, Digit, Alpha)
Flag: HTTP_Whitespace HTTP_Whitespace (‘ ’ (0x20), HT (0x09))
Flag: Part Part (‘0’-‘9’, Alpha, ‘@’, ‘_’, extended)
Flag: URL_Query URL_Query (‘!$%&'()*+,-./:;=?@_~’, Digit, Alpha)
Flag: URL_Scheme URL_Scheme (‘+-.’, Digit, Alpha)
Flag: URL_Segment URL_Segment (‘!$%&'()*+,-.:;=@_~’, Digit, Alpha)
Flag: URL_SubDelim URL_SubDelim (‘!$&'()*+,;=’)
Flag: URL_Unreserved URL_Unreserved (‘-._~’, Digit, Alpha)
Flag: XML_Key Element Tag or Attribute Key (XML_Start, ‘-’, ‘.’, ‘0’-‘9’)
Flag: XML_Start Element Tag or Attribute Key first (‘:’, ‘A’-‘Z’, ‘_’, ‘a’-‘z’)
Flag: XML_Whitespace (‘ ’ (0x20), HT (0x09), LF (0x0A), CR (0x0D))