// Copyright (c) 2018, ETH Zurich and UNC Chapel Hill.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
//     * Redistributions of source code must retain the above copyright
//       notice, this list of conditions and the following disclaimer.
//
//     * Redistributions in binary form must reproduce the above copyright
//       notice, this list of conditions and the following disclaimer in the
//       documentation and/or other materials provided with the distribution.
//
//     * Neither the name of ETH Zurich and UNC Chapel Hill nor the names of
//       its contributors may be used to endorse or promote products derived
//       from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//
// Author: Johannes L. Schoenberger (jsch at inf.ethz.ch)

#ifndef COLMAP_SRC_UTIL_STRING_H_
#define COLMAP_SRC_UTIL_STRING_H_

#include <string>
#include <vector>

namespace colmap {

// Format string by replacing embedded format specifiers with their respective
// values, see `printf` for more details. This is a modified implementation
// of Google's BSD-licensed StringPrintf function.
std::string StringPrintf(const char* format, ...);

// Replace all occurrences of `old_str` with `new_str` in the given string.
std::string StringReplace(const std::string& str, const std::string& old_str,
                          const std::string& new_str);

// Split string into list of words using the given delimiters.
std::vector<std::string> StringSplit(const std::string& str,
                                     const std::string& delim);

// Check whether a string starts with a certain prefix.
bool StringStartsWith(const std::string& str, const std::string& prefix);

// Remove whitespace from string on both, left, or right sides.
void StringTrim(std::string* str);
void StringLeftTrim(std::string* str);
void StringRightTrim(std::string* str);

// Convert string to lower/upper case.
void StringToLower(std::string* str);
void StringToUpper(std::string* str);

// Check whether the sub-string is contained in the given string.
bool StringContains(const std::string& str, const std::string& sub_str);

}  // namespace colmap

#endif  // COLMAP_SRC_UTIL_STRING_H_
