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/*
* Copyright 2015 WebAssembly Community Group participants
*
* 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 <unistd.h>
#include <cstdlib>
#include <ostream>
namespace Colors {
inline bool use() {
return (getenv("COLORS") && getenv("COLORS")[0] == '1') || // forced
(isatty(STDOUT_FILENO) && (!getenv("COLORS") || getenv("COLORS")[0] != '0')); // implicit
}
inline void normal(std::ostream& stream) {
if (!use()) return;
#if defined(__linux__) || defined(__apple__)
stream << "\033[0m";
#endif
}
inline void red(std::ostream& stream) {
if (!use()) return;
#if defined(__linux__) || defined(__apple__)
stream << "\033[31m";
#endif
}
inline void magenta(std::ostream& stream) {
if (!use()) return;
#if defined(__linux__) || defined(__apple__)
stream << "\033[35m";
#endif
}
inline void orange(std::ostream& stream) {
if (!use()) return;
#if defined(__linux__) || defined(__apple__)
stream << "\033[33m";
#endif
}
inline void grey(std::ostream& stream) {
if (!use()) return;
#if defined(__linux__) || defined(__apple__)
stream << "\033[37m";
#endif
}
inline void green(std::ostream& stream) {
if (!use()) return;
#if defined(__linux__) || defined(__apple__)
stream << "\033[32m";
#endif
}
inline void blue(std::ostream& stream) {
if (!use()) return;
#if defined(__linux__) || defined(__apple__)
stream << "\033[34m";
#endif
}
inline void bold(std::ostream& stream) {
if (!use()) return;
#if defined(__linux__) || defined(__apple__)
stream << "\033[1m";
#endif
}
};
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