1 /**************************************************************************
3 * Copyright 2010 VMware, Inc.
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
24 **************************************************************************/
26 #ifndef _FORMATTER_HPP_
27 #define _FORMATTER_HPP_
36 * See also http://bytes.com/topic/c/answers/63822-design-question-little-c-header-colorizing-text-linux-comments-ideas
41 virtual ~Attribute() {}
43 virtual void apply(std::ostream& os) const {}
56 virtual ~Formatter() {}
58 virtual Attribute *normal(void) const { return new Attribute; }
59 virtual Attribute *bold(void) const { return new Attribute; }
60 virtual Attribute *italic(void) const { return new Attribute; }
61 virtual Attribute *color(Color color) const { return new Attribute; }
65 class AnsiAttribute : public Attribute {
69 AnsiAttribute(const char *_escape) : escape(_escape) {}
70 void apply(std::ostream& os) const {
71 os << "\33[" << escape;
77 * Formatter for plain-text files which outputs ANSI escape codes. See
78 * http://en.wikipedia.org/wiki/ANSI_escape_code for more information
79 * concerning ANSI escape codes.
81 class AnsiFormatter : public Formatter {
84 virtual Attribute *normal(void) const { return new AnsiAttribute("0m"); }
85 virtual Attribute *bold(void) const { return new AnsiAttribute("1m"); }
86 virtual Attribute *italic(void) const { return new AnsiAttribute("3m"); }
87 virtual Attribute *color(Color c) const {
88 static const char *color_escapes[] = {
93 return new AnsiAttribute(color_escapes[c]);
98 inline std::ostream& operator<<(std::ostream& os, const Attribute *attr) {
108 class WindowsAttribute : public Attribute {
112 WindowsAttribute(WORD _wAttributes) : wAttributes(_wAttributes) {}
113 void apply(std::ostream& os) const {
114 DWORD nStdHandleOutput;
115 if (os == std::cout) {
116 nStdHandleOutput = STD_OUTPUT_HANDLE;
117 } else if (os == std::cerr) {
118 nStdHandleOutput = STD_ERROR_HANDLE;
122 HANDLE hConsoleOutput = GetStdHandle(nStdHandleOutput);
123 if (hConsoleOutput == INVALID_HANDLE_VALUE) {
127 SetConsoleTextAttribute(hConsoleOutput, wAttributes);
133 * Formatter for the Windows Console.
135 class WindowsFormatter : public Formatter {
138 virtual Attribute *normal(void) const { return new WindowsAttribute(FOREGROUND_BLUE | FOREGROUND_GREEN | FOREGROUND_RED); }
139 virtual Attribute *bold(void) const { return new WindowsAttribute(FOREGROUND_BLUE | FOREGROUND_GREEN | FOREGROUND_RED | FOREGROUND_INTENSITY); }
140 virtual Attribute *italic(void) const { return new WindowsAttribute(FOREGROUND_BLUE | FOREGROUND_GREEN | FOREGROUND_RED); }
141 virtual Attribute *color(Color c) const {
142 static const WORD color_escapes[] = {
143 FOREGROUND_RED | FOREGROUND_INTENSITY,
144 FOREGROUND_GREEN | FOREGROUND_INTENSITY,
145 FOREGROUND_BLUE | FOREGROUND_INTENSITY,
147 return new WindowsAttribute(color_escapes[c]);
154 inline Formatter *defaultFormatter(void) {
156 return new WindowsFormatter;
158 return new AnsiFormatter;
163 } /* namespace Formatter */
166 #endif /* _FORMATTER_HPP_ */