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2026-07-13 12:40:42 +08:00

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/* Copyright (c) 2022 PaddlePaddle Authors. All Rights Reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License. */
#include "paddle/phi/kernels/strings/strings_lower_upper_kernel.h"
#include "paddle/phi/backends/cpu/cpu_context.h"
#include "paddle/phi/common/pstring.h"
#include "paddle/phi/core/kernel_registry.h"
namespace phi::strings {
template <typename ContextT>
void StringLowerKernel(const ContextT& dev_ctx,
const StringTensor& x,
bool use_utf8_encoding,
StringTensor* out) {
StringCaseConvertKernel<AsciiCaseConverter<ContextT, AsciiToLower>,
UTF8CaseConverter<ContextT, UTF8ToLower>,
ContextT>()(dev_ctx, x, use_utf8_encoding, out);
}
template <typename ContextT>
void StringUpperKernel(const ContextT& dev_ctx,
const StringTensor& x,
bool use_utf8_encoding,
StringTensor* out) {
StringCaseConvertKernel<AsciiCaseConverter<ContextT, AsciiToUpper>,
UTF8CaseConverter<ContextT, UTF8ToUpper>,
ContextT>()(dev_ctx, x, use_utf8_encoding, out);
}
#ifdef _WIN32
template PADDLE_API void StringLowerKernel<CPUContext>(const CPUContext&,
const StringTensor& x,
bool,
StringTensor*);
template PADDLE_API void StringUpperKernel<CPUContext>(const CPUContext&,
const StringTensor& x,
bool,
StringTensor*);
#endif
} // namespace phi::strings
PD_REGISTER_KERNEL_FOR_ALL_DTYPE(
strings_lower,
CPU,
ALL_LAYOUT,
phi::strings::StringLowerKernel<phi::CPUContext>) {}
PD_REGISTER_KERNEL_FOR_ALL_DTYPE(
strings_upper,
CPU,
ALL_LAYOUT,
phi::strings::StringUpperKernel<phi::CPUContext>) {}