Dictionary De - En
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De - Pt| English Dictionary: UTF-8 | by the DICT Development Group |
| 1 result for UTF-8 | |
| From The Free On-line Dictionary of Computing (15Feb98) [foldoc]: | |
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UTF-8 {ASCII}-compatible multibyte {Unicode} and {UCS} encoding, used by {Java} and {Plan 9}. The {Unicode character} set occupies a 16-bit code space. The most obvious Unicode encoding (known as UCS-2) consists of a sequence of 16-bit words. Such strings can contain bytes like '\0' or '/' which have a special meaning in filenames and other {C} library function parameters. In addition, the majority of {Unix} tools expects ASCII files and can't read 16-bit words as characters without major modifications. For these reasons, UCS-2 is not a suitable external encoding of Unicode in filenames, text files, environment variables, etc. The {ISO 10646} {Universal Character Set} (UCS), a superset of Unicode, occupies a 31-bit code space and the obvious UCS-4 encoding for it (a sequence of 32-bit words) has the same problems. The UTF-8 encoding of Unicode and UCS avoids the problems of fixed-length Unicode encodings because an ASCII file encoded in UTF is exactly same as the original ASCII file and all non-ASCII characters are guaranteed to have the most significant bit set (bit 0x80). This means that normal tools for text searching etc. work as expected. UTF-8 is defined in {RFC 2279}. ["File System Safe UCS Transformation Format (FSS_UTF)", X/Open Preliminary Specification, X/Open Company Ltd., Document Number: P316. This information also appears in ISO/IEC 10646, Annex P]. {Plan 9 UTF manual entry (ftp://ftp.uu.net/doc/obi/Bell.Labs/plan9pm/09utf.ps.Z)}. (1998-07-29) | |
