contains.hpp
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1 /*
2  * SPDX-FileCopyrightText: Copyright (c) 2019-2026, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
3  * SPDX-License-Identifier: Apache-2.0
4  */
5 #pragma once
6 
7 #include <cudf/column/column.hpp>
8 #include <cudf/scalar/scalar.hpp>
9 #include <cudf/strings/regex/flags.hpp>
12 
18 namespace CUDF_EXPORT cudf {
19 namespace strings {
20 
21 struct regex_program;
22 
50 std::unique_ptr<column> contains_re(
51  strings_column_view const& input,
52  regex_program const& prog,
55 
78 std::unique_ptr<column> matches_re(
79  strings_column_view const& input,
80  regex_program const& prog,
83 
106 std::unique_ptr<column> count_re(
107  strings_column_view const& input,
108  regex_program const& prog,
111 
155 std::unique_ptr<column> like(
156  strings_column_view const& input,
157  std::string_view const& pattern,
158  std::string_view const& escape_character = "",
161 
195 std::unique_ptr<column> like(
196  strings_column_view const& input,
197  strings_column_view const& patterns,
198  string_scalar const& escape_character = string_scalar(""),
201  // end of doxygen group
203 } // namespace strings
204 } // namespace CUDF_EXPORT cudf
An owning class to represent a string in device memory.
Definition: scalar.hpp:411
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::resource_ref< cuda::mr::device_accessible > device_async_resource_ref
std::unique_ptr< column > contains_re(strings_column_view const &input, regex_program const &prog, 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 rows which match the given regex_program object.
std::unique_ptr< column > matches_re(strings_column_view const &input, regex_program const &prog, 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 rows which matching the given regex_program object but only at t...
std::unique_ptr< column > count_re(strings_column_view const &input, regex_program const &prog, rmm::cuda_stream_view stream=cudf::get_default_stream(), rmm::device_async_resource_ref mr=cudf::get_current_device_resource_ref())
Returns the number of times the given regex_program's pattern matches in each string.
std::unique_ptr< column > like(strings_column_view const &input, strings_column_view const &patterns, string_scalar const &escape_character=string_scalar(""), 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 rows which match the corresponding like pattern in the given pat...
APIs for getting and setting the current device memory resource.
cuDF interfaces
Definition: host_udf.hpp:26
Class definitions for cudf::scalar.
Class definition for cudf::strings_column_view.
Regex program class.