YugabyteDB (2.13.0.0-b42, bfc6a6643e7399ac8a0e81d06a3ee6d6571b33ab)

// Licensed to the Apache Software Foundation (ASF) under one

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// distributed with this work for additional information

// regarding copyright ownership.  The ASF licenses this file

// to you 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.

//

// The following only applies to changes made to this file as part of YugaByte development.

//

// Portions Copyright (c) YugaByte, Inc.

//

// 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 "yb/util/string_case.h"

#include <algorithm>

#include <glog/logging.h>

namespace yb {

using std::string;

void SnakeToCamelCase(const std::string &snake_case,

                      std::string *camel_case) {

  DCHECK_NE(camel_case, &snake_case) << "Does not support in-place operation";

  camel_case->clear();

  camel_case->reserve(snake_case.size());

  bool uppercase_next = true;

  for (char c : snake_case) {

    if ((c == '_') ||

        (c == '-')) {

      uppercase_next = true;

      continue;

    }

    if (uppercase_next) {

      camel_case->push_back(toupper(c));

    } else {

      camel_case->push_back(c);

    }

    uppercase_next = false;

  }

}

void AllCapsToCamelCase(const std::string &all_caps,

                        std::string *camel_case) {

  DCHECK_NE(camel_case, &all_caps) << "Does not support in-place operation";

  camel_case->clear();

  camel_case->reserve(all_caps.size());

  bool uppercase_next = true;

  for (char c : all_caps) {

    if ((c == '_') ||

        (c == '-')) {

      uppercase_next = true;

      continue;

    }

    if (uppercase_next) {

      camel_case->push_back(c);

    } else {

      camel_case->push_back(tolower(c));

    }

    uppercase_next = false;

  }

}

std::string AllCapsToCamelCase(const std::string &all_caps) {

  std::string sresult;

  AllCapsToCamelCase(all_caps, &sresult);

  return sresult;

}

void ToLowerCase(const std::string &string,

                 std::string *out) {

  if (out != &string) {

    *out = string;

  }

  for (char& c : *out) {

    c = tolower(c);

  }

}

void ToUpperCase(const std::string &string,

                 std::string *out) {

  if (out != &string) {

    *out = string;

  }

  for (char& c : *out) {

    c = toupper(c);

  }

}

void Capitalize(string *word) {

  auto size = word->size();

  if (size == 0) {

    return;

  }

  (*word)[0] = toupper((*word)[0]);

  for (size_t i = 1; i < size; i++) {

    (*word)[i] = tolower((*word)[i]);

  }

}

bool ContainsUpperCase(const string& str) {

  return std::any_of(str.begin(), str.end(), isupper);

}

}  // namespace yb