mirror of
https://github.com/reactos/reactos.git
synced 2024-12-26 17:14:41 +00:00
157 lines
3.7 KiB
C
157 lines
3.7 KiB
C
/*
|
|
* FOR.C - for internal batch command.
|
|
*
|
|
*
|
|
* History:
|
|
*
|
|
* 16-Jul-1998 (Hans B Pufal)
|
|
* Started.
|
|
*
|
|
* 16-Jul-1998 (John P Price)
|
|
* Seperated commands into individual files.
|
|
*
|
|
* 19-Jul-1998 (Hans B Pufal)
|
|
* Implementation of FOR.
|
|
*
|
|
* 27-Jul-1998 (John P Price <linux-guru@gcfl.net>)
|
|
* Added config.h include.
|
|
*
|
|
* 20-Jan-1999 (Eric Kohl)
|
|
* Unicode and redirection safe!
|
|
*
|
|
* 01-Sep-1999 (Eric Kohl)
|
|
* Added help text.
|
|
*
|
|
* 23-Feb-2001 (Carl Nettelblad <cnettel@hem.passagen.se>)
|
|
* Implemented preservation of echo flag. Some other for related
|
|
* code in other files fixed, too.
|
|
*/
|
|
|
|
#include "config.h"
|
|
|
|
#include <windows.h>
|
|
#include <tchar.h>
|
|
#include <string.h>
|
|
#include <stdlib.h>
|
|
#include <ctype.h>
|
|
|
|
#include "cmd.h"
|
|
#include "batch.h"
|
|
|
|
|
|
/*
|
|
* Perform FOR command.
|
|
*
|
|
* First check syntax is correct : FOR %v IN ( <list> ) DO <command>
|
|
* v must be alphabetic, <command> must not be empty.
|
|
*
|
|
* If all is correct build a new bcontext structure which preserves
|
|
* the necessary information so that readbatchline can expand
|
|
* each the command prototype for each list element.
|
|
*
|
|
* You might look on a FOR as being a called batch file with one line
|
|
* per list element.
|
|
*/
|
|
|
|
INT cmd_for (LPTSTR cmd, LPTSTR param)
|
|
{
|
|
LPBATCH_CONTEXT lpNew;
|
|
LPTSTR pp;
|
|
TCHAR var;
|
|
|
|
#ifdef _DEBUG
|
|
DebugPrintf ("cmd_for (\'%s\', \'%s\'\n", cmd, param);
|
|
#endif
|
|
|
|
if (!_tcsncmp (param, _T("/?"), 2))
|
|
{
|
|
ConOutPuts (_T("Runs a specified command for each file in a set of files\n"
|
|
"\n"
|
|
"FOR %variable IN (set) DO command [parameters]\n"
|
|
"\n"
|
|
" %variable Specifies a replaceable parameter.\n"
|
|
" (set) Specifies a set of one or more files. Wildcards may be used.\n"
|
|
" command Specifies the command to carry out for each file.\n"
|
|
" parameters Specifies parameters or switches for the specified command.\n"
|
|
"\n"
|
|
"To user the FOR comamnd in a batch program, specify %%variable instead of\n"
|
|
"%variable."));
|
|
return 0;
|
|
}
|
|
|
|
/* Check that first element is % then an alpha char followed by space */
|
|
if ((*param != _T('%')) || !_istalpha (*(param + 1)) || !_istspace (*(param + 2)))
|
|
{
|
|
error_syntax (_T("bad variable specification."));
|
|
return 1;
|
|
}
|
|
|
|
param++;
|
|
var = *param++; /* Save FOR var name */
|
|
|
|
while (_istspace (*param))
|
|
param++;
|
|
|
|
/* Check next element is 'IN' */
|
|
if ((_tcsnicmp (param, _T("in"), 2) != 0) || !_istspace (*(param + 2)))
|
|
{
|
|
error_syntax (_T("'in' missing in for statement."));
|
|
return 1;
|
|
}
|
|
|
|
param += 2;
|
|
while (_istspace (*param))
|
|
param++;
|
|
|
|
/* Folowed by a '(', find also matching ')' */
|
|
if ((*param != _T('(')) || (NULL == (pp = _tcsrchr (param, _T(')')))))
|
|
{
|
|
error_syntax (_T("no brackets found."));
|
|
return 1;
|
|
}
|
|
|
|
*pp++ = _T('\0');
|
|
param++; /* param now points at null terminated list */
|
|
|
|
while (_istspace (*pp))
|
|
pp++;
|
|
|
|
/* Check DO follows */
|
|
if ((_tcsnicmp (pp, _T("do"), 2) != 0) || !_istspace (*(pp + 2)))
|
|
{
|
|
error_syntax (_T("'do' missing."));
|
|
return 1;
|
|
}
|
|
|
|
pp += 2;
|
|
while (_istspace (*pp))
|
|
pp++;
|
|
|
|
/* Check that command tail is not empty */
|
|
if (*pp == _T('\0'))
|
|
{
|
|
error_syntax (_T("no command after 'do'."));
|
|
return 1;
|
|
}
|
|
|
|
/* OK all is correct, build a bcontext.... */
|
|
lpNew = (LPBATCH_CONTEXT)malloc (sizeof (BATCH_CONTEXT));
|
|
|
|
lpNew->prev = bc;
|
|
bc = lpNew;
|
|
|
|
bc->hBatchFile = INVALID_HANDLE_VALUE;
|
|
bc->ffind = NULL;
|
|
bc->params = BatchParams (_T(""), param); /* Split out list */
|
|
bc->shiftlevel = 0;
|
|
bc->forvar = var;
|
|
bc->forproto = _tcsdup (pp);
|
|
if (bc->prev)
|
|
bc->bEcho = bc->prev->bEcho;
|
|
else
|
|
bc->bEcho = bEcho;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* EOF */
|