411 lines
13 KiB
C
411 lines
13 KiB
C
/*=========================================================================
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Program: KWSys - Kitware System Library
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Module: $RCSfile$
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Copyright (c) Kitware, Inc., Insight Consortium. All rights reserved.
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See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notices for more information.
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=========================================================================*/
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#include "kwsysPrivate.h"
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#include KWSYS_HEADER(Terminal.h)
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/* Work-around CMake dependency scanning limitation. This must
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duplicate the above list of headers. */
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#if 0
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# include "Terminal.h.in"
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#endif
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/*--------------------------------------------------------------------------*/
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/* Configure support for this platform. */
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#if defined(_WIN32) || defined(__CYGWIN__)
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# define KWSYS_TERMINAL_SUPPORT_CONSOLE
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#endif
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#if !defined(_WIN32)
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# define KWSYS_TERMINAL_ISATTY_WORKS
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#endif
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/*--------------------------------------------------------------------------*/
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/* Include needed system APIs. */
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#include <stdlib.h> /* getenv */
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#include <string.h> /* strcmp */
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#include <stdarg.h> /* va_list */
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#if defined(KWSYS_TERMINAL_SUPPORT_CONSOLE)
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# include <windows.h> /* SetConsoleTextAttribute */
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# include <io.h> /* _get_osfhandle */
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#endif
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#if defined(KWSYS_TERMINAL_ISATTY_WORKS)
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# include <unistd.h> /* isatty */
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#else
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# include <sys/stat.h> /* fstat */
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#endif
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/*--------------------------------------------------------------------------*/
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static int kwsysTerminalStreamIsVT100(FILE* stream, int default_vt100,
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int default_tty);
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static void kwsysTerminalSetVT100Color(FILE* stream, int color);
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#if defined(KWSYS_TERMINAL_SUPPORT_CONSOLE)
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static HANDLE kwsysTerminalGetStreamHandle(FILE* stream);
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static void kwsysTerminalSetConsoleColor(HANDLE hOut,
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CONSOLE_SCREEN_BUFFER_INFO* hOutInfo,
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FILE* stream,
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int color);
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#endif
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/*--------------------------------------------------------------------------*/
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void kwsysTerminal_cfprintf(int color, FILE* stream, const char* format, ...)
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{
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/* Setup the stream with the given color if possible. */
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int pipeIsConsole = 0;
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int pipeIsVT100 = 0;
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int default_vt100 = color & kwsysTerminal_Color_AssumeVT100;
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int default_tty = color & kwsysTerminal_Color_AssumeTTY;
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#if defined(KWSYS_TERMINAL_SUPPORT_CONSOLE)
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CONSOLE_SCREEN_BUFFER_INFO hOutInfo;
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HANDLE hOut = kwsysTerminalGetStreamHandle(stream);
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if(GetConsoleScreenBufferInfo(hOut, &hOutInfo))
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{
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pipeIsConsole = 1;
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kwsysTerminalSetConsoleColor(hOut, &hOutInfo, stream, color);
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}
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#endif
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if(!pipeIsConsole && kwsysTerminalStreamIsVT100(stream,
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default_vt100, default_tty))
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{
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pipeIsVT100 = 1;
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kwsysTerminalSetVT100Color(stream, color);
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}
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/* Format the text into the stream. */
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{
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va_list var_args;
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va_start(var_args, format);
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vfprintf(stream, format, var_args);
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va_end(var_args);
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}
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/* Restore the normal color state for the stream. */
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#if defined(KWSYS_TERMINAL_SUPPORT_CONSOLE)
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if(pipeIsConsole)
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{
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kwsysTerminalSetConsoleColor(hOut, &hOutInfo, stream,
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kwsysTerminal_Color_Normal);
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}
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#endif
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if(pipeIsVT100)
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{
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kwsysTerminalSetVT100Color(stream, kwsysTerminal_Color_Normal);
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}
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}
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/*--------------------------------------------------------------------------*/
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/* Detect cases when a stream is definately not interactive. */
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#if !defined(KWSYS_TERMINAL_ISATTY_WORKS)
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static int kwsysTerminalStreamIsNotInteractive(FILE* stream)
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{
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/* The given stream is definately not interactive if it is a regular
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file. */
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struct stat stream_stat;
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if(fstat(fileno(stream), &stream_stat) == 0)
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{
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if(stream_stat.st_mode & S_IFREG)
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{
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return 1;
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}
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}
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return 0;
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}
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#endif
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/*--------------------------------------------------------------------------*/
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/* List of terminal names known to support VT100 color escape sequences. */
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static const char* kwsysTerminalVT100Names[] =
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{
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"Eterm",
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"ansi",
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"color-xterm",
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"con132x25",
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"con132x30",
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"con132x43",
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"con132x60",
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"con80x25",
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"con80x28",
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"con80x30",
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"con80x43",
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"con80x50",
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"con80x60",
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"console",
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"cygwin",
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"konsole",
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"linux",
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"msys",
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"rxvt",
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"rxvt-unicode",
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"screen",
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"vt100",
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"xterm",
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"xterm-color",
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0
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};
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/*--------------------------------------------------------------------------*/
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/* Detect whether a stream is displayed in a VT100-compatible terminal. */
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static int kwsysTerminalStreamIsVT100(FILE* stream, int default_vt100,
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int default_tty)
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{
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/* If running inside emacs the terminal is not VT100. Some emacs
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seem to claim the TERM is xterm even though they do not support
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VT100 escapes. */
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const char* emacs = getenv("EMACS");
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if(emacs && *emacs == 't')
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{
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return 0;
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}
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/* Check for a valid terminal. */
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if(!default_vt100)
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{
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const char** t = 0;
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const char* term = getenv("TERM");
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if(term)
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{
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for(t = kwsysTerminalVT100Names; *t && strcmp(term, *t) != 0; ++t) {}
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}
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if(!(t && *t))
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{
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return 0;
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}
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}
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#if defined(KWSYS_TERMINAL_ISATTY_WORKS)
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/* Make sure the stream is a tty. */
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(void)default_tty;
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return isatty(fileno(stream))? 1:0;
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#else
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/* Check for cases in which the stream is definately not a tty. */
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if(kwsysTerminalStreamIsNotInteractive(stream))
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{
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return 0;
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}
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/* Use the provided default for whether this is a tty. */
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return default_tty;
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#endif
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}
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/*--------------------------------------------------------------------------*/
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/* VT100 escape sequence strings. */
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#define KWSYS_TERMINAL_VT100_NORMAL "\33[0m"
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#define KWSYS_TERMINAL_VT100_BOLD "\33[1m"
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#define KWSYS_TERMINAL_VT100_UNDERLINE "\33[4m"
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#define KWSYS_TERMINAL_VT100_BLINK "\33[5m"
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#define KWSYS_TERMINAL_VT100_INVERSE "\33[7m"
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#define KWSYS_TERMINAL_VT100_FOREGROUND_BLACK "\33[30m"
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#define KWSYS_TERMINAL_VT100_FOREGROUND_RED "\33[31m"
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#define KWSYS_TERMINAL_VT100_FOREGROUND_GREEN "\33[32m"
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#define KWSYS_TERMINAL_VT100_FOREGROUND_YELLOW "\33[33m"
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#define KWSYS_TERMINAL_VT100_FOREGROUND_BLUE "\33[34m"
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#define KWSYS_TERMINAL_VT100_FOREGROUND_MAGENTA "\33[35m"
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#define KWSYS_TERMINAL_VT100_FOREGROUND_CYAN "\33[36m"
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#define KWSYS_TERMINAL_VT100_FOREGROUND_WHITE "\33[37m"
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#define KWSYS_TERMINAL_VT100_BACKGROUND_BLACK "\33[40m"
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#define KWSYS_TERMINAL_VT100_BACKGROUND_RED "\33[41m"
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#define KWSYS_TERMINAL_VT100_BACKGROUND_GREEN "\33[42m"
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#define KWSYS_TERMINAL_VT100_BACKGROUND_YELLOW "\33[43m"
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#define KWSYS_TERMINAL_VT100_BACKGROUND_BLUE "\33[44m"
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#define KWSYS_TERMINAL_VT100_BACKGROUND_MAGENTA "\33[45m"
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#define KWSYS_TERMINAL_VT100_BACKGROUND_CYAN "\33[46m"
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#define KWSYS_TERMINAL_VT100_BACKGROUND_WHITE "\33[47m"
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/*--------------------------------------------------------------------------*/
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/* Write VT100 escape sequences to the stream for the given color. */
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static void kwsysTerminalSetVT100Color(FILE* stream, int color)
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{
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if(color == kwsysTerminal_Color_Normal)
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{
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fprintf(stream, KWSYS_TERMINAL_VT100_NORMAL);
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return;
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}
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switch(color & kwsysTerminal_Color_ForegroundMask)
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{
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case kwsysTerminal_Color_Normal:
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fprintf(stream, KWSYS_TERMINAL_VT100_NORMAL);
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break;
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case kwsysTerminal_Color_ForegroundBlack:
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fprintf(stream, KWSYS_TERMINAL_VT100_FOREGROUND_BLACK);
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break;
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case kwsysTerminal_Color_ForegroundRed:
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fprintf(stream, KWSYS_TERMINAL_VT100_FOREGROUND_RED);
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break;
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case kwsysTerminal_Color_ForegroundGreen:
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fprintf(stream, KWSYS_TERMINAL_VT100_FOREGROUND_GREEN);
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break;
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case kwsysTerminal_Color_ForegroundYellow:
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fprintf(stream, KWSYS_TERMINAL_VT100_FOREGROUND_YELLOW);
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break;
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case kwsysTerminal_Color_ForegroundBlue:
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fprintf(stream, KWSYS_TERMINAL_VT100_FOREGROUND_BLUE);
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break;
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case kwsysTerminal_Color_ForegroundMagenta:
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fprintf(stream, KWSYS_TERMINAL_VT100_FOREGROUND_MAGENTA);
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break;
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case kwsysTerminal_Color_ForegroundCyan:
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fprintf(stream, KWSYS_TERMINAL_VT100_FOREGROUND_CYAN);
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break;
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case kwsysTerminal_Color_ForegroundWhite:
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fprintf(stream, KWSYS_TERMINAL_VT100_FOREGROUND_WHITE);
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break;
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}
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switch(color & kwsysTerminal_Color_BackgroundMask)
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{
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case kwsysTerminal_Color_BackgroundBlack:
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fprintf(stream, KWSYS_TERMINAL_VT100_BACKGROUND_BLACK);
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break;
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case kwsysTerminal_Color_BackgroundRed:
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fprintf(stream, KWSYS_TERMINAL_VT100_BACKGROUND_RED);
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break;
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case kwsysTerminal_Color_BackgroundGreen:
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fprintf(stream, KWSYS_TERMINAL_VT100_BACKGROUND_GREEN);
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break;
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case kwsysTerminal_Color_BackgroundYellow:
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fprintf(stream, KWSYS_TERMINAL_VT100_BACKGROUND_YELLOW);
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break;
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case kwsysTerminal_Color_BackgroundBlue:
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fprintf(stream, KWSYS_TERMINAL_VT100_BACKGROUND_BLUE);
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break;
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case kwsysTerminal_Color_BackgroundMagenta:
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fprintf(stream, KWSYS_TERMINAL_VT100_BACKGROUND_MAGENTA);
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break;
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case kwsysTerminal_Color_BackgroundCyan:
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fprintf(stream, KWSYS_TERMINAL_VT100_BACKGROUND_CYAN);
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break;
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case kwsysTerminal_Color_BackgroundWhite:
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fprintf(stream, KWSYS_TERMINAL_VT100_BACKGROUND_WHITE);
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break;
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}
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if(color & kwsysTerminal_Color_ForegroundBold)
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{
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fprintf(stream, KWSYS_TERMINAL_VT100_BOLD);
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}
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}
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/*--------------------------------------------------------------------------*/
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#if defined(KWSYS_TERMINAL_SUPPORT_CONSOLE)
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# define KWSYS_TERMINAL_MASK_FOREGROUND \
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(FOREGROUND_BLUE | FOREGROUND_GREEN | FOREGROUND_RED | FOREGROUND_INTENSITY)
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# define KWSYS_TERMINAL_MASK_BACKGROUND \
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(BACKGROUND_BLUE | BACKGROUND_GREEN | BACKGROUND_RED | BACKGROUND_INTENSITY)
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/* Get the Windows handle for a FILE stream. */
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static HANDLE kwsysTerminalGetStreamHandle(FILE* stream)
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{
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/* Get the C-library file descriptor from the stream. */
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int fd = fileno(stream);
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# if defined(__CYGWIN__)
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/* Cygwin seems to have an extra pipe level. If the file descriptor
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corresponds to stdout or stderr then obtain the matching windows
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handle directly. */
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if(fd == fileno(stdout))
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{
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return GetStdHandle(STD_OUTPUT_HANDLE);
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}
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else if(fd == fileno(stderr))
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{
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return GetStdHandle(STD_ERROR_HANDLE);
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}
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# endif
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/* Get the underlying Windows handle for the descriptor. */
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return (HANDLE)_get_osfhandle(fd);
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}
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/* Set color attributes in a Windows console. */
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static void kwsysTerminalSetConsoleColor(HANDLE hOut,
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CONSOLE_SCREEN_BUFFER_INFO* hOutInfo,
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FILE* stream,
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int color)
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{
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WORD attributes = 0;
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switch(color & kwsysTerminal_Color_ForegroundMask)
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{
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case kwsysTerminal_Color_Normal:
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attributes |= hOutInfo->wAttributes & KWSYS_TERMINAL_MASK_FOREGROUND;
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break;
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case kwsysTerminal_Color_ForegroundBlack:
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attributes |= 0;
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break;
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case kwsysTerminal_Color_ForegroundRed:
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attributes |= FOREGROUND_RED;
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break;
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case kwsysTerminal_Color_ForegroundGreen:
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attributes |= FOREGROUND_GREEN;
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break;
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case kwsysTerminal_Color_ForegroundYellow:
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attributes |= FOREGROUND_RED | FOREGROUND_GREEN;
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break;
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case kwsysTerminal_Color_ForegroundBlue:
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attributes |= FOREGROUND_BLUE;
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break;
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case kwsysTerminal_Color_ForegroundMagenta:
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attributes |= FOREGROUND_RED | FOREGROUND_BLUE;
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break;
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case kwsysTerminal_Color_ForegroundCyan:
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attributes |= FOREGROUND_BLUE | FOREGROUND_GREEN;
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break;
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case kwsysTerminal_Color_ForegroundWhite:
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attributes |= FOREGROUND_BLUE | FOREGROUND_GREEN | FOREGROUND_RED;
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break;
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}
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switch(color & kwsysTerminal_Color_BackgroundMask)
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{
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case kwsysTerminal_Color_Normal:
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attributes |= hOutInfo->wAttributes & KWSYS_TERMINAL_MASK_BACKGROUND;
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break;
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case kwsysTerminal_Color_BackgroundBlack:
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attributes |= 0;
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break;
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case kwsysTerminal_Color_BackgroundRed:
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attributes |= BACKGROUND_RED;
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break;
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case kwsysTerminal_Color_BackgroundGreen:
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attributes |= BACKGROUND_GREEN;
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break;
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case kwsysTerminal_Color_BackgroundYellow:
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attributes |= BACKGROUND_RED | BACKGROUND_GREEN;
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break;
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case kwsysTerminal_Color_BackgroundBlue:
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attributes |= BACKGROUND_BLUE;
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break;
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case kwsysTerminal_Color_BackgroundMagenta:
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attributes |= BACKGROUND_RED | BACKGROUND_BLUE;
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break;
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case kwsysTerminal_Color_BackgroundCyan:
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attributes |= BACKGROUND_BLUE | BACKGROUND_GREEN;
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break;
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case kwsysTerminal_Color_BackgroundWhite:
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attributes |= BACKGROUND_BLUE | BACKGROUND_GREEN | BACKGROUND_RED;
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break;
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}
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if(color & kwsysTerminal_Color_ForegroundBold)
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{
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attributes |= FOREGROUND_INTENSITY;
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}
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if(color & kwsysTerminal_Color_BackgroundBold)
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{
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attributes |= BACKGROUND_INTENSITY;
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}
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fflush(stream);
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SetConsoleTextAttribute(hOut, attributes);
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}
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#endif
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