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construct/include/ircd/gpt/vocab.h

56 lines
1.9 KiB
C++

// Matrix Construct
//
// Copyright (C) Matrix Construct Developers, Authors & Contributors
// Copyright (C) 2016-2021 Jason Volk <jason@zemos.net>
//
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice is present in all copies. The
// full license for this software is available in the LICENSE file.
#pragma once
#define HAVE_IRCD_GPT_VOCAB_H
/// Vocabulary Tokenization & Encoding
///
namespace ircd::gpt::vocab
{
IRCD_EXCEPTION(gpt::error, error)
// Actual number of tokens and merges stored in following lists.
extern size_t
tokens,
merges;
// Lists of tokens and merges. Values are strings up to length maxlen which
// are null terminated if shorter.
extern char
token [65536][16],
merge [65536][2][16];
// Paths to the files containing token and merge datas.
extern conf::item<std::string>
tokens_path,
merges_path;
// Tokenize UTF-8 input string of any length into proper token values,
vector_view<u16> tokenize(const vector_view<u16> &out, const string_view &in) noexcept;
// Tokenize one token. The buffer is advanced consuming one token per call.
u16 tokenize(const_buffer &) noexcept;
// Tokenize one token. Error thrown if input is not exactly one token.
u16 tokenize(const string_view &in, const bool prefix_space = false);
// Return the number of tokens which would be output by a tokenize().
size_t count(const string_view &in) noexcept;
// Decode token values to build output text string.
string_view detokenize(const mutable_buffer &out, const vector_view<const u16> &in) noexcept;
// Return the length of the string which would be output by a detokenize().
size_t count(const vector_view<const u16> &in) noexcept;
// Other tools
string_view debug(const mutable_buffer &buf, const u16 token, const uint fmt_msk = -1U);
}