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/*
* Copyright (C) 2018 The Android Open Source Project
*
* 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.
*/
#ifndef LIBTEXTCLASSIFIER_UTILS_STRINGS_SUBSTITUTE_H_
#define LIBTEXTCLASSIFIER_UTILS_STRINGS_SUBSTITUTE_H_
#include <string>
#include <vector>
#include "utils/strings/stringpiece.h"
namespace libtextclassifier3 {
namespace strings {
// Formats a string with argument-binding.
// Uses a format string that contains positional identifiers indicated by a
// dollar sign ($) and a signle digit positional id to indicate which
// substitution arguments to use at that location within the format string.
// A '$$' sequence in the format string means output a literal '$' character.
// Returns whether the substitution was successful.
bool Substitute(const StringPiece format, const std::vector<StringPiece>& args,
std::string* output);
std::string Substitute(const StringPiece format,
const std::vector<StringPiece>& args);
} // namespace strings
} // namespace libtextclassifier3
#endif // LIBTEXTCLASSIFIER_UTILS_STRINGS_SUBSTITUTE_H_