stringi (version 0.2-4)

stri_enc_info: 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

Value

• Returns a list with the following components:
  • Name.friendly-- Friendly encoding name: MIME Name or JAVA Name orICUCanonical Name (the first of provided ones is selected, see below);
  • Name.ICU-- Encoding name as identified byICU;
  • 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 haveCharSize.min == CharSize.maxandCharSize.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 codepoint representation size)

Details

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

See Also

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