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61 lines
1.6 KiB
C++
61 lines
1.6 KiB
C++
/** Enum type for supporting encodings in libpqxx
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*
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* Copyright (c) 2000-2022, Jeroen T. Vermeulen.
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*
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* See COPYING for copyright license. If you did not receive a file called
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* COPYING with this source code, please notify the distributor of this
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* mistake, or contact the author.
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*/
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#ifndef PQXX_H_ENCODING_GROUP
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#define PQXX_H_ENCODING_GROUP
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#include <cstddef>
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namespace pqxx::internal
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{
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// Types of encodings supported by PostgreSQL, see
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// https://www.postgresql.org/docs/current/static/multibyte.html#CHARSET-TABLE
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enum class encoding_group
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{
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// Handles all single-byte fixed-width encodings
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MONOBYTE,
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// Multibyte encodings.
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// Many of these can embed ASCII-like bytes inside multibyte characters,
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// notably Big5, SJIS, SHIFT_JIS_2004, GP18030, GBK, JOHAB, UHC.
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BIG5,
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EUC_CN,
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// TODO: Merge EUC_JP and EUC_JIS_2004?
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EUC_JP,
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EUC_JIS_2004,
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EUC_KR,
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EUC_TW,
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GB18030,
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GBK,
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JOHAB,
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MULE_INTERNAL,
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// TODO: Merge SJIS and SHIFT_JIS_2004?
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SJIS,
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SHIFT_JIS_2004,
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UHC,
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UTF8,
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};
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// TODO:: Can we just use string_view now?
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/// Function type: "find the end of the current glyph."
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/** This type of function takes a text buffer, and a location in that buffer,
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* and returns the location one byte past the end of the current glyph.
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*
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* The start offset marks the beginning of the current glyph. It must fall
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* within the buffer.
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*
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* There are multiple different glyph scanner implementations, for different
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* kinds of encodings.
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*/
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using glyph_scanner_func =
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std::size_t(char const buffer[], std::size_t buffer_len, std::size_t start);
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} // namespace pqxx::internal
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#endif
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