reactos/base/shell/cmd/goto.c

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/*
* GOTO.C - goto internal batch command.
*
* History:
*
* 16 Jul 1998 (Hans B Pufal)
* started.
*
* 16 Jul 1998 (John P Price)
* Separated commands into individual files.
*
* 27-Jul-1998 (John P Price <linux-guru@gcfl.net>)
* added config.h include
*
* 28 Jul 1998 (Hans B Pufal) [HBP_003]
* Terminate label on first space character, use only first 8 chars of
* label string
*
* 24-Jan-1999 (Eric Kohl)
* Unicode and redirection safe!
*
* 27-Jan-1999 (Eric Kohl)
* Added help text ("/?").
*
* 28-Apr-2005 (Magnus Olsen <magnus@greatlord.com>)
* Remove all hardcoded strings in En.rc
*/
#include "precomp.h"
/*
* Perform GOTO command.
*
* Only valid if batch file current.
*
*/
INT cmd_goto (LPTSTR param)
{
LPTSTR tmp, tmp2;
TRACE ("cmd_goto (\'%s\')\n", debugstr_aw(param));
if (!_tcsncmp (param, _T("/?"), 2))
{
ConOutResPaging(TRUE,STRING_GOTO_HELP1);
return 0;
}
/* if not in batch -- error!! */
if (bc == NULL)
{
return 1;
}
if (*param == _T('\0'))
{
ConErrResPrintf(STRING_GOTO_ERROR1);
ExitBatch();
return 1;
}
/* terminate label at first space char */
tmp = param+1;
while (!_istcntrl (*tmp) && !_istspace (*tmp) && (*tmp != _T(':')))
tmp++;
*(tmp) = _T('\0');
/* jump to end of the file */
if ( _tcsicmp( param, _T(":eof"))==0)
{
bc->mempos=bc->memsize; /* position at the end of the batchfile */
return 0;
}
/* jump to begin of the file */
bc->mempos=0;
while (BatchGetString (textline, sizeof(textline) / sizeof(textline[0])))
{
int pos;
INT_PTR size;
/* Strip out any trailing spaces or control chars */
tmp = textline + _tcslen (textline) - 1;
while (tmp > textline && (_istcntrl (*tmp) || _istspace (*tmp) || (*tmp == _T(':'))))
tmp--;
*(tmp + 1) = _T('\0');
/* Then leading spaces... */
tmp = textline;
while (_istspace (*tmp))
tmp++;
/* All space after leading space terminate the string */
size = _tcslen(tmp) -1;
pos=0;
while (tmp+pos < tmp+size)
{
if (_istspace(tmp[pos]))
tmp[pos]=_T('\0');
pos++;
}
tmp2 = param;
/* use whole label name */
if ((*tmp == _T(':')) && ((_tcsicmp (++tmp, param) == 0) || (_tcsicmp (tmp, ++tmp2) == 0)))
return 0;
}
ConErrResPrintf(STRING_GOTO_ERROR2, param);
ExitBatch();
return 1;
}
/* EOF */