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What is variable-width encoding?
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What is UTF-8 encoding?
What is a variable-length code?
A variable-width encoding is a type of character encoding scheme in which codes of differing lengths are used to encode a character set (a repertoire of symbols) for representation, usually in a computer. Most common variable-width encodings are multibyte encodings, which use varying numbers of bytes to
- Utf8
UTF-8 is a variable-length character encoding standard used...
- Variable-length code
In coding theory, a variable-length code is a code which...
- Utf8
A variable-width encoding is a type of character encoding scheme in which codes of different lengths are used to encode a character set for representation in a computer. All of the common Unicode encodings are variable-width encodings, e.g. UTF-8 and UTF-16.
Yet the UTF-8 encoding somehow squeezes these into much smaller spaces by using something called "variable-width encoding". In fact, it manages to represent the first 127 characters of US-ASCII in just one byte which looks exactly like real ASCII, so you can interpret lots of ascii text as if it were UTF-8 without doing anything to it. Neat trick.
Usage example
10xx xxxx A continuation of one of the multi-byte charactersUTF-8 is a variable-length character encoding standard used for electronic communication. Defined by the Unicode Standard, the name is derived from Unicode Transformation Format – 8-bit.
Lempel–Ziv–Welch ( LZW) is a universal lossless data compression algorithm created by Abraham Lempel, Jacob Ziv, and Terry Welch. It was published by Welch in 1984 as an improved implementation of the LZ78 algorithm published by Lempel and Ziv in 1978.