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# RAGFlow Go Implementation Plan 🚀 This repository tracks the progress of porting RAGFlow to Go. We'll implement core features and provide performance comparisons between Python and Go versions. ## Implementation Checklist - [x] User Management APIs - [x] Dataset Management Operations - [x] Retrieval Test - [x] Chat Management Operations - [x] Infinity Go SDK --------- Signed-off-by: Jin Hai <haijin.chn@gmail.com> Co-authored-by: Yingfeng Zhang <yingfeng.zhang@gmail.com>
70 lines
2.0 KiB
C++
70 lines
2.0 KiB
C++
// Copyright 2004 The RE2 Authors. All Rights Reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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#include "re2/stringpiece.h"
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#include <ostream>
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#include "util/util.h"
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namespace re2 {
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const StringPiece::size_type StringPiece::npos; // initialized in stringpiece.h
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StringPiece::size_type StringPiece::copy(char *buf, size_type n, size_type pos) const {
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size_type ret = std::min(size_ - pos, n);
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memcpy(buf, data_ + pos, ret);
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return ret;
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}
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StringPiece StringPiece::substr(size_type pos, size_type n) const {
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if (pos > size_)
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pos = size_;
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if (n > size_ - pos)
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n = size_ - pos;
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return StringPiece(data_ + pos, n);
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}
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StringPiece::size_type StringPiece::find(const StringPiece &s, size_type pos) const {
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if (pos > size_)
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return npos;
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const_pointer result = std::search(data_ + pos, data_ + size_, s.data_, s.data_ + s.size_);
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size_type xpos = result - data_;
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return xpos + s.size_ <= size_ ? xpos : npos;
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}
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StringPiece::size_type StringPiece::find(char c, size_type pos) const {
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if (size_ <= 0 || pos >= size_)
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return npos;
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const_pointer result = std::find(data_ + pos, data_ + size_, c);
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return result != data_ + size_ ? result - data_ : npos;
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}
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StringPiece::size_type StringPiece::rfind(const StringPiece &s, size_type pos) const {
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if (size_ < s.size_)
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return npos;
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if (s.size_ == 0)
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return std::min(size_, pos);
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const_pointer last = data_ + std::min(size_ - s.size_, pos) + s.size_;
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const_pointer result = std::find_end(data_, last, s.data_, s.data_ + s.size_);
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return result != last ? result - data_ : npos;
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}
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StringPiece::size_type StringPiece::rfind(char c, size_type pos) const {
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if (size_ <= 0)
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return npos;
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for (size_t i = std::min(pos + 1, size_); i != 0;) {
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if (data_[--i] == c)
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return i;
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}
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return npos;
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}
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std::ostream &operator<<(std::ostream &o, const StringPiece &p) {
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o.write(p.data(), p.size());
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return o;
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}
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} // namespace re2
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