File Information
Library: Foundation
Package: Text
Header: Poco/UTF8Encoding.h
Description
UTF-8 text encoding, as defined in RFC 2279.
Inheritance
Direct Base Classes: TextEncoding
All Base Classes: TextEncoding
Member Summary
Member Functions: canonicalName, characterMap, convert, isA, isLegal, queryConvert, sequenceLength
Inherited Functions: add, byName, canonicalName, characterMap, convert, find, global, isA, manager, queryConvert, remove, sequenceLength
Constructors
UTF8Encoding
UTF8Encoding();
Destructor
~UTF8Encoding 
~UTF8Encoding();
Member Functions
canonicalName
const char * canonicalName() const;
See also: Poco::TextEncoding::canonicalName()
characterMap
const CharacterMap & characterMap() const;
See also: Poco::TextEncoding::characterMap()
convert
int convert(
const unsigned char * bytes
) const;
See also: Poco::TextEncoding::convert()
convert
int convert(
int ch,
unsigned char * bytes,
int length
) const;
See also: Poco::TextEncoding::convert()
isA
bool isA(
const std::string & encodingName
) const;
See also: Poco::TextEncoding::isA()
isLegal 
static bool isLegal(
const unsigned char * bytes,
int length
);
Utility routine to tell whether a sequence of bytes is legal UTF-8. This must be called with the length pre-determined by the first byte. The sequence is illegal right away if there aren't enough bytes available. If presented with a length > 4, this function returns false. The Unicode definition of UTF-8 goes up to 4-byte sequences.
Adapted from ftp://ftp.unicode.org/Public/PROGRAMS/CVTUTF/ConvertUTF.c Copyright 2001-2004 Unicode, Inc.
queryConvert
int queryConvert(
const unsigned char * bytes,
int length
) const;
See also: Poco::TextEncoding::queryConvert()
sequenceLength
int sequenceLength(
const unsigned char * bytes,
int length
) const;
See also: Poco::TextEncoding::sequenceLength()