char_types.hpp
Go to the documentation of this file.
1 /*
2  * Copyright (c) 2019-2024, NVIDIA CORPORATION.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 #pragma once
17 
18 #include <cudf/column/column.hpp>
19 #include <cudf/scalar/scalar.hpp>
23 
24 namespace CUDF_EXPORT cudf {
25 namespace strings {
64 std::unique_ptr<column> all_characters_of_type(
65  strings_column_view const& input,
70 
111 std::unique_ptr<column> filter_characters_of_type(
112  strings_column_view const& input,
113  string_character_types types_to_remove,
114  string_scalar const& replacement = string_scalar(""),
118  // end of doxygen group
120 } // namespace strings
121 } // namespace CUDF_EXPORT cudf
An owning class to represent a string in device memory.
Definition: scalar.hpp:429
Given a column-view of strings type, an instance of this class provides a wrapper on this compound co...
Class definition for cudf::column.
rmm::cuda_stream_view const get_default_stream()
Get the current default stream.
rmm::device_async_resource_ref get_current_device_resource_ref()
Get the current device memory resource reference.
cuda::mr::async_resource_ref< cuda::mr::device_accessible > device_async_resource_ref
std::unique_ptr< column > filter_characters_of_type(strings_column_view const &input, string_character_types types_to_remove, string_scalar const &replacement=string_scalar(""), string_character_types types_to_keep=string_character_types::ALL_TYPES, rmm::cuda_stream_view stream=cudf::get_default_stream(), rmm::device_async_resource_ref mr=cudf::get_current_device_resource_ref())
Filter specific character types from a column of strings.
std::unique_ptr< column > all_characters_of_type(strings_column_view const &input, string_character_types types, string_character_types verify_types=string_character_types::ALL_TYPES, rmm::cuda_stream_view stream=cudf::get_default_stream(), rmm::device_async_resource_ref mr=cudf::get_current_device_resource_ref())
Returns a boolean column identifying string entries where all characters are of the type specified.
string_character_types
Character type values. These types can be or'd to check for any combination of types.
@ ALL_TYPES
all character types
cuDF interfaces
Definition: host_udf.hpp:39
Class definitions for cudf::scalar.
Class definition for cudf::strings_column_view.