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
𠀀 131072 ● 0x20000 ● ‘𠀀’ ● UTF8: 0xF0 0xA0 0x80 0x80

Plane: 0x2 ● Page: 0x0 ● Byte: 0x20000

Unicode Plane
0 1 2 3 4 5 6 7 8 9 A B C D E F 10
Unicode Page in Plane: 2
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: 0x2 ● Page: 0x0
0 1 2 3 4 5 6 7 8 9 A B C D E F
00 𠀀 𠀁 𠀂 𠀃 𠀄 𠀅 𠀆 𠀇 𠀈 𠀉 𠀊 𠀋 𠀌 𠀍 𠀎 𠀏
10 𠀐 𠀑 𠀒 𠀓 𠀔 𠀕 𠀖 𠀗 𠀘 𠀙 𠀚 𠀛 𠀜 𠀝 𠀞 𠀟
20 𠀠 𠀡 𠀢 𠀣 𠀤 𠀥 𠀦 𠀧 𠀨 𠀩 𠀪 𠀫 𠀬 𠀭 𠀮 𠀯
30 𠀰 𠀱 𠀲 𠀳 𠀴 𠀵 𠀶 𠀷 𠀸 𠀹 𠀺 𠀻 𠀼 𠀽 𠀾 𠀿
40 𠁀 𠁁 𠁂 𠁃 𠁄 𠁅 𠁆 𠁇 𠁈 𠁉 𠁊 𠁋 𠁌 𠁍 𠁎 𠁏
50 𠁐 𠁑 𠁒 𠁓 𠁔 𠁕 𠁖 𠁗 𠁘 𠁙 𠁚 𠁛 𠁜 𠁝 𠁞 𠁟
60 𠁠 𠁡 𠁢 𠁣 𠁤 𠁥 𠁦 𠁧 𠁨 𠁩 𠁪 𠁫 𠁬 𠁭 𠁮 𠁯
70 𠁰 𠁱 𠁲 𠁳 𠁴 𠁵 𠁶 𠁷 𠁸 𠁹 𠁺 𠁻 𠁼 𠁽 𠁾 𠁿
80 𠂀 𠂁 𠂂 𠂃 𠂄 𠂅 𠂆 𠂇 𠂈 𠂉 𠂊 𠂋 𠂌 𠂍 𠂎 𠂏
90 𠂐 𠂑 𠂒 𠂓 𠂔 𠂕 𠂖 𠂗 𠂘 𠂙 𠂚 𠂛 𠂜 𠂝 𠂞 𠂟
A0 𠂠 𠂡 𠂢 𠂣 𠂤 𠂥 𠂦 𠂧 𠂨 𠂩 𠂪 𠂫 𠂬 𠂭 𠂮 𠂯
B0 𠂰 𠂱 𠂲 𠂳 𠂴 𠂵 𠂶 𠂷 𠂸 𠂹 𠂺 𠂻 𠂼 𠂽 𠂾 𠂿
C0 𠃀 𠃁 𠃂 𠃃 𠃄 𠃅 𠃆 𠃇 𠃈 𠃉 𠃊 𠃋 𠃌 𠃍 𠃎 𠃏
D0 𠃐 𠃑 𠃒 𠃓 𠃔 𠃕 𠃖 𠃗 𠃘 𠃙 𠃚 𠃛 𠃜 𠃝 𠃞 𠃟
E0 𠃠 𠃡 𠃢 𠃣 𠃤 𠃥 𠃦 𠃧 𠃨 𠃩 𠃪 𠃫 𠃬 𠃭 𠃮 𠃯
F0 𠃰 𠃱 𠃲 𠃳 𠃴 𠃵 𠃶 𠃷 𠃸 𠃹 𠃺 𠃻 𠃼 𠃽 𠃾 𠃿
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))