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/*
* Copyright 2017 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.
*/
#ifndef WABT_COLOR_H_
#define WABT_COLOR_H_
#include <cstdio>
namespace wabt {
#define WABT_FOREACH_COLOR_CODE(V) \
V(Default, "\x1b[0m") \
V(Bold, "\x1b[1m") \
V(NoBold, "\x1b[22m") \
V(Black, "\x1b[30m") \
V(Red, "\x1b[31m") \
V(Green, "\x1b[32m") \
V(Yellow, "\x1b[33m") \
V(Blue, "\x1b[34m") \
V(Magenta, "\x1b[35m") \
V(Cyan, "\x1b[36m") \
V(White, "\x1b[37m")
class Color {
public:
Color() : file_(nullptr), enabled_(false) {}
Color(FILE*, bool enabled = true);
// Write the given color to the file, if enabled.
#define WABT_COLOR(Name, code) \
void Name() const { WriteCode(Name##Code()); }
WABT_FOREACH_COLOR_CODE(WABT_COLOR)
#undef WABT_COLOR
// Get the color code as a string, if enabled.
#define WABT_COLOR(Name, code) \
const char* Maybe##Name##Code() const { return enabled_ ? Name##Code() : ""; }
WABT_FOREACH_COLOR_CODE(WABT_COLOR)
#undef WABT_COLOR
// Get the color code as a string.
#define WABT_COLOR(Name, code) \
static const char* Name##Code() { return code; }
WABT_FOREACH_COLOR_CODE(WABT_COLOR)
#undef WABT_COLOR
private:
static bool SupportsColor(FILE*);
void WriteCode(const char*) const;
FILE* file_;
bool enabled_;
};
#undef WABT_FOREACH_COLOR_CODE
} // namespace wabt
#endif // WABT_COLOR_H_
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