XML Companion, The, Third Edition

U

UCS (Universal Multiple-Octet Coded Character Set)

The core ISO10646 multi-byte data format. Transformation formats reduce the size by using single bytes for common characters. These formats are called UTF, with 'U' standing for UCS.

UCS Transformation Format

See [UTF (UCS Transformation Format)A mechanism for compressing UCS-2 and UCS-4 encoded data for transfer between systems. The two-byte or four-byte UCS character representation schemes are often wasteful when relatively common characters are in use. A text file can easily be compressed by as much as 75 per cent. Two variants, UTF-8 (8-bit) and UTF-16 (16-bit), offer different levels of character range support.]

UCS Transformation Format 16 Bit Form

See [UTF-16 ]

UCS-2

An ISO/IEC 10646 ...