mirror of
https://github.com/reactos/reactos.git
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226 lines
4.7 KiB
C
226 lines
4.7 KiB
C
/*
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* PROMPT.C - prompt handling.
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*
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*
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* History:
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*
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* 14/01/95 (Tim Normal)
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* started.
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*
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* 08/08/95 (Matt Rains)
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* i have cleaned up the source code. changes now bring this source
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* into guidelines for recommended programming practice.
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*
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* 01/06/96 (Tim Norman)
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* added day of the week printing (oops, forgot about that!)
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*
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* 08/07/96 (Steffan Kaiser)
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* small changes for speed
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*
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* 20-Jul-1998 (John P Price <linux-guru@gcfl.net>)
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* removed redundant day strings. Use ones defined in date.c.
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*
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* 27-Jul-1998 (John P Price <linux-guru@gcfl.net>)
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* added config.h include
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*
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* 28-Jul-1998 (John P Price <linux-guru@gcfl.net>)
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* moved cmd_prompt from internal.c to here
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*
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* 09-Dec-1998 (Eric Kohl <ekohl@abo.rhein-zeitung.de>)
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* Added help text ("/?").
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*
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* 14-Dec-1998 (Eric Kohl <ekohl@abo.rhein-zeitung.de>)
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* Added "$+" option.
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*
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* 09-Jan-1999 (Eric Kohl <ekohl@abo.rhein-zeitung.de>)
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* Added "$A", "$C" and "$F" option.
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* Added locale support.
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* Fixed "$V" option.
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*
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* 20-Jan-1999 (Eric Kohl <ekohl@abo.rhein-zeitung.de>)
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* Unicode and redirection safe!
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*
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* 24-Jan-1999 (Eric Kohl <ekohl@abo.rhein-zeitung.de>)
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* Fixed Win32 environment handling.
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*/
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#include "config.h"
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#include <windows.h>
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#include <tchar.h>
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#include <string.h>
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#include <ctype.h>
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#include "cmd.h"
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/*
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* print the command-line prompt
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*
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*/
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VOID PrintPrompt(VOID)
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{
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static TCHAR default_pr[] = _T("$P$G");
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TCHAR szPrompt[256];
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LPTSTR pr;
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if (GetEnvironmentVariable (_T("PROMPT"), szPrompt, 256))
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pr = szPrompt;
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else
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pr = default_pr;
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while (*pr)
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{
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if (*pr != _T('$'))
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{
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ConOutChar (*pr);
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}
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else
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{
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pr++;
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switch (_totupper (*pr))
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{
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case _T('A'):
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ConOutChar (_T('&'));
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break;
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case _T('B'):
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ConOutChar (_T('|'));
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break;
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case _T('C'):
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ConOutChar (_T('('));
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break;
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case _T('D'):
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PrintDate ();
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break;
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case _T('E'):
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ConOutChar (_T('\x1B'));
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break;
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case _T('F'):
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ConOutChar (_T(')'));
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break;
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case _T('G'):
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ConOutChar (_T('>'));
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break;
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case _T('H'):
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ConOutChar (_T('\x08'));
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break;
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case _T('L'):
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ConOutChar (_T('<'));
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break;
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case _T('N'):
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{
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TCHAR szPath[MAX_PATH];
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GetCurrentDirectory (MAX_PATH, szPath);
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ConOutChar (szPath[0]);
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}
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break;
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case _T('P'):
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{
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TCHAR szPath[MAX_PATH];
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GetCurrentDirectory (MAX_PATH, szPath);
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ConOutPrintf (_T("%s"), szPath);
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}
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break;
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case _T('Q'):
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ConOutChar (_T('='));
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break;
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case _T('T'):
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PrintTime ();
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break;
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case _T('V'):
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switch (osvi.dwPlatformId)
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{
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case VER_PLATFORM_WIN32_WINDOWS:
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if (osvi.dwMajorVersion == 4 &&
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osvi.dwMinorVersion == 1)
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ConOutPrintf (_T("Windows 98"));
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else
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ConOutPrintf (_T("Windows 95"));
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break;
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case VER_PLATFORM_WIN32_NT:
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ConOutPrintf (_T("Windows NT Version %lu.%lu"),
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osvi.dwMajorVersion, osvi.dwMinorVersion);
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break;
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}
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break;
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case _T('_'):
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ConOutChar (_T('\n'));
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break;
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case '$':
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ConOutChar (_T('$'));
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break;
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#ifdef FEATURE_DIRECTORY_STACK
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case '+':
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{
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INT i;
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for (i = 0; i < GetDirectoryStackDepth (); i++)
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ConOutChar (_T('+'));
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}
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break;
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#endif
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}
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}
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pr++;
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}
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}
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#ifdef INCLUDE_CMD_PROMPT
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INT cmd_prompt (LPTSTR cmd, LPTSTR param)
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{
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if (!_tcsncmp (param, _T("/?"), 2))
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{
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ConOutPuts (_T("Changes the command prompt.\n\n"
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"PROMPT [text]\n\n"
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" text Specifies a new command prompt.\n\n"
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"Prompt can be made up of normal characters and the following special codes:\n\n"
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" $A & (Ampersand)\n"
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" $B | (pipe)\n"
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" $C ( (Left parenthesis)\n"
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" $D Current date\n"
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" $E Escape code (ASCII code 27)\n"
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" $F ) (Right parenthesis)\n"
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" $G > (greater-than sign)\n"
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" $H Backspace (erases previous character)\n"
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" $L < (less-than sign)\n"
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" $N Current drive\n"
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" $P Current drive and path\n"
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" $Q = (equal sign)\n"
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" $T Current time\n"
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" $V OS version number\n"
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" $_ Carriage return and linefeed\n"
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" $$ $ (dollar sign)"));
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#ifdef FEATURE_DIRECTORY_STACK
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ConOutPuts (_T(" $+ Displays the current depth of the directory stack"));
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#endif
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ConOutPuts (_T("\nType PROMPT without parameters to reset the prompt to the default setting."));
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return 0;
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}
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/* set PROMPT environment variable */
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if (!SetEnvironmentVariable (_T("PROMPT"), param))
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return 1;
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return 0;
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}
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#endif
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