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109 lines
2.3 KiB
C
109 lines
2.3 KiB
C
/*
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* GOTO.C - goto internal batch command.
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*
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* History:
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*
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* 16 Jul 1998 (Hans B Pufal)
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* started.
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*
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* 16 Jul 1998 (John P Price)
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* Seperated commands into individual files.
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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 (Hans B Pufal) [HBP_003]
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* Terminate label on first space character, use only first 8 chars of
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* label string
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*
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* 24-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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* 27-Jan-1999 (Eric Kohl <ekohl@abo.rhein-zeitung.de>)
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* Added help text ("/?").
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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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#include "batch.h"
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/*
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* Perform GOTO command.
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*
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* Only valid if batch file current.
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*
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*/
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INT cmd_goto (LPTSTR cmd, LPTSTR param)
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{
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LPTSTR tmp;
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LONG lNewPosHigh;
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#ifdef _DEBUG
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DebugPrintf ("cmd_goto (\'%s\', \'%s\'\n", cmd, param);
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#endif
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if (!_tcsncmp (param, _T("/?"), 2))
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{
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ConOutPuts (_T("Directs CMD to a labeled line in a batch script.\n"
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"\n"
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"GOTO label\n"
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"\n"
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" label Specifies a text string used in a batch script as a label.\n"
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"\n"
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"You type a label on a line by itself, beginning with a colon."));
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return 0;
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}
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/* if not in batch -- error!! */
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if (bc == NULL)
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{
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return 1;
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}
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if (*param == _T('\0'))
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{
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ExitBatch (_T("No label specified for GOTO\n"));
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return 1;
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}
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/* terminate label at first space char */
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tmp = param;
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while (*tmp && !_istspace (*tmp))
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tmp++;
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*tmp = _T('\0');
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/* set file pointer to the beginning of the batch file */
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lNewPosHigh = 0;
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SetFilePointer (bc->hBatchFile, 0, &lNewPosHigh, FILE_BEGIN);
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while (FileGetString (bc->hBatchFile, textline, sizeof(textline)))
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{
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/* Strip out any trailing spaces or control chars */
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tmp = textline + _tcslen (textline) - 1;
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while (_istcntrl (*tmp) || _istspace (*tmp))
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tmp--;
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*(tmp + 1) = _T('\0');
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/* Then leading spaces... */
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tmp = textline;
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while (_istspace (*tmp))
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tmp++;
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/* use only 1st 8 chars of label */
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if ((*tmp == _T(':')) && (_tcsncmp (++tmp, param, 8) == 0))
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return 0;
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}
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ConErrPrintf (_T("Label '%s' not found\n"), param);
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ExitBatch (NULL);
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return 1;
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}
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