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June 2016



The LegacyStrings package provides compatibility string types from Julia 0.5 (and earlier), which were removed in subsequent versions, including:

  • ASCIIString: a single-byte-per character string type that can only hold ASCII string data.
  • UTF8String: a string type with single byte code units (UInt8), encoding strings as UTF-8.
  • UTF16String: a string type with two-byte native-endian code units (UInt16), encoding strings as UTF-16.
  • UTF32String: a string type with four-byte native-endian code units (UInt32), encoding strings as UTF-32.
  • ByteString: a type alias for Union{ASCIIString,UTF8String}, i.e. strings that can be passed to C directly.
  • WString: an alias for UTF16String if Cwchart_t is two bytes (i.e. Windows) or UTF32String otherwise.
  • RepString: a string type for efficient handling of repeated strings.

LegacyStrings also defines and exports converter functions for these types, i.e.:

  • ascii: convert to ASCIIString; since Base exports an ascii function as well, you must explicitly do import LegacyStrings: ascii or write LegacyStrings.ascii in order to use this function rather than Base.ascii.
  • utf8: convert to UTF8String.
  • utf16: convert to UTF16String.
  • utf32: convert to UTF32String.
  • wstring: alias for utf16 or utf32 according to what WString is an alias to.

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