stringi

Documentation

stri_enc_info {stringi}R Documentation

Query a Character Encoding

Description

Gets basic information on a character encoding.

Usage

stri_enc_info(enc = NULL)

Arguments

enc

NULL or "" for default encoding, or a single string with encoding name

Details

An error is raised if the provided encoding is unknown to ICU (see stri_enc_list for more details)

Value

Returns a list with the following components:

  • Name.friendly – Friendly encoding name: MIME Name or JAVA Name or ICU Canonical Name (the first of provided ones is selected, see below);

  • Name.ICU – Encoding name as identified by ICU;

  • Name.* – other standardized encoding names, e.g. Name.UTR22, Name.IBM, Name.WINDOWS, Name.JAVA, Name.IANA, Name.MIME (some of them may be unavailable for all the encodings);

  • ASCII.subset – is ASCII a subset of the given encoding?;

  • Unicode.1to1 – for 8-bit encodings only: are all characters translated to exactly one Unicode code point and is the translation scheme reversible?;

  • CharSize.8bit – is this an 8-bit encoding, i.e. do we have CharSize.min == CharSize.max and CharSize.min == 1?;

  • CharSize.min – minimal number of bytes used to represent an UChar (in UTF-16, this is not the same as UChar32)

  • CharSize.max – maximal number of bytes used to represent an UChar (in UTF-16, this is not the same as UChar32, i.e. does not reflect the maximal code point representation size)

See Also

Other encoding_management: stri_enc_list, stri_enc_mark, stri_enc_set, stringi-encoding


[Package stringi version 1.1.7 Index]