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/*
* Copyright (C) 2016 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 STRING_HELPER_H_
#define STRING_HELPER_H_
#include <string>
#include <vector>
namespace android {
struct StringHelper {
enum Case {
// return original string
kNoCase = 0,
// use camelCase
kCamelCase = 1,
// use PascalCase
kPascalCase = 2,
// use UP_SNAKE_CASE
kUpperSnakeCase = 3,
// use low_snake_case
kLowerSnakeCase = 4
};
// methods for a single word, like device
// UPPERCASE
static std::string Uppercase(const std::string &in);
// lowercase
static std::string Lowercase(const std::string &in);
// Capitalize
static std::string Capitalize(const std::string &in);
// methods for a multi-word identifier, like framebuffer_device
static std::string ToCamelCase(const std::string &in);
static std::string ToPascalCase(const std::string &in);
static std::string ToUpperSnakeCase(const std::string &in);
static std::string ToLowerSnakeCase(const std::string &in);
static std::string ToCase(Case c, const std::string &in);
static bool EndsWith(const std::string &in, const std::string &suffix);
static bool StartsWith(const std::string &in, const std::string &prefix);
/* removes suffix once from in if in ends with suffix */
static std::string RTrim(const std::string &in, const std::string &suffix);
/* removes prefix once from in if in starts with prefix */
static std::string LTrim(const std::string &in, const std::string &prefix);
/* removes suffix repeatedly from in if in ends with suffix */
static std::string RTrimAll(const std::string &in, const std::string &suffix);
/* removes prefix repeatedly from in if in starts with prefix */
static std::string LTrimAll(const std::string &in, const std::string &prefix);
static void SplitString(
const std::string &s,
char c,
std::vector<std::string> *components);
static std::string JoinStrings(
const std::vector<std::string> &components,
const std::string &separator);
private:
StringHelper() = delete;
static void Tokenize(const std::string &in,
std::vector<std::string> *vec);
};
} // namespace android
#endif // STRING_HELPER_H_
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