
null pointer, 569
number forms block, 443
number sign (#), 386, 396
numbering characters, 40
numbers, 18, 168
as indexes, 43
numeric character references, 113
Numeric Type (nt), 225
Numeric Value (nv), 225
numero sign (№), 425
nv (Numeric Value), 225
O
Ø (U+00D8), 408
ø (U+00F8), 408
O with a stroke (Ø, ø), 408
OAlpha (Other Alphabetic), 225
objects (Java), 580
obsolete characters, 186
octet, 4, 68
UTF-8 ranges, 308
octet sequences, 44
ODI (Other Default Ignorable Code Point),
225
OE (Outlook Express), 56, 150
non-ASCII characters and, 548
OEM (original equipment manufacturer) code
pages, 88, 131
offline data, 151
Ogam script code, 348
OGr Ext (Other Grapheme Extend), 225
OIDC (Other ID Continue), 225
OIDS (Other ID Start), 225
OLower (Other Lowercase), 225
OMath (Other Math), 225
ON (other neutrals) Bidi Class value, 269
OP (Opening Punctuation) LineBreak property
value, 280
open collections, 37
OpenType, 34, 379
Opera browser, 57
Optional Hyphen, 85
original equipment manufacturer (OEM) code
pages, 88, 131
Orkh script code, 348
orthography, 383
Orya (Orlya) script code, 348
Osma (Osmanya) script code, 348
Other Alphabetic (OAlpha), 225
Other Default Ignorable Code Point (ODI),
225
Other Grapheme Extend (OGr Ext), 225
Other ID Continue (OIDC), 225
Other ID Start (OIDS), 225
Other Lowercase (OLower), 225
Other Math (OMath), 225
Other Uppercase (OUpper), 225
OUpper (Other Uppercase), 225
Outlook Express (OE), 56, 150
non-ASCII characters ...