wehub-resource-sync
75 lines
2.2 KiB
C++
75 lines
2.2 KiB
C++
/* Copyright (c) 2022 PaddlePaddle Authors. All Rights Reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License. */
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#pragma once
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#include <string>
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#include "paddle/phi/common/pstring.h"
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#include "paddle/phi/kernels/strings/unicode.h"
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#if defined(__NVCC__) || defined(__HIPCC__)
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#include <thrust/device_vector.h>
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#include <thrust/execution_policy.h>
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#include "paddle/phi/backends/gpu/gpu_context.h"
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#endif
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namespace phi {
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namespace strings {
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using pstring = dtype::pstring;
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struct AsciiToLower {
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HOSTDEVICE char operator()(char in) const {
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return ('A' <= in && in <= 'Z') ? in - ('Z' - 'z') : in;
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}
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};
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struct AsciiToUpper {
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HOSTDEVICE char operator()(char in) const {
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return ('a' <= in && in <= 'z') ? in ^ 0x20 : in;
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}
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};
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template <typename Context>
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struct UTF8ToLower {
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HOSTDEVICE UTF8ToLower(const uint8_t* unicode_flag_map,
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const uint16_t* cases_map)
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: unicode_flag_map_(unicode_flag_map), cases_map_(cases_map) {}
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HOSTDEVICE uint32_t operator()(uint32_t in) const {
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uint32_t flg = (in <= 0x00FFFF ? unicode_flag_map_[in] : 0);
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return (strings::IsUpper(flg) ? cases_map_[in] : in);
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}
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const uint8_t* unicode_flag_map_;
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const uint16_t* cases_map_;
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};
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template <typename Context>
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struct UTF8ToUpper {
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HOSTDEVICE UTF8ToUpper(const uint8_t* unicode_flag_map,
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const uint16_t* cases_map)
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: unicode_flag_map_(unicode_flag_map), cases_map_(cases_map) {}
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HOSTDEVICE uint32_t operator()(uint32_t in) const {
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uint32_t flg = (in <= 0x00FFFF ? unicode_flag_map_[in] : 0);
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return (strings::IsLower(flg) ? cases_map_[in] : in);
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}
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const uint8_t* unicode_flag_map_;
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const uint16_t* cases_map_;
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};
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} // namespace strings
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} // namespace phi
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