mirror of
https://github.com/reactos/reactos.git
synced 2024-09-28 05:26:58 +00:00
Implement complete support for FOR command (including /D, /F, /L, and /R switches). cmd is now close to being able to run RosBE 1.3's initialization without errors.
svn path=/trunk/; revision=39742
This commit is contained in:
Jeffrey Morlan
parent
93ce0dce1f
commit
b18a547c1b
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@ -188,12 +188,6 @@ VOID ExitBatch (LPTSTR msg)
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if (bc->params)
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cmd_free(bc->params);
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if (bc->forproto)
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cmd_free(bc->forproto);
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if (bc->ffind)
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cmd_free(bc->ffind);
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UndoRedirection(bc->RedirList, NULL);
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FreeRedirection(bc->RedirList);
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@ -270,9 +264,8 @@ BOOL Batch (LPTSTR fullname, LPTSTR firstword, LPTSTR param, BOOL forcenew)
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bc->bEcho = bEcho; /* Preserve echo across batch calls */
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bc->shiftlevel = 0;
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bc->ffind = NULL;
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bc->forvar = _T('\0');
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bc->forproto = NULL;
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bc->forvarcount = 0;
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bc->params = BatchParams (firstword, param);
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//
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// Allocate enough memory to hold the params and copy them over without modifications
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@ -351,76 +344,6 @@ LPTSTR ReadBatchLine ()
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if (bc == NULL)
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return NULL;
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/* If its a FOR context... */
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if (bc->forvar)
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{
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LPTSTR sp = bc->forproto; /* pointer to prototype command */
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LPTSTR dp = textline; /* Place to expand protoype */
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LPTSTR fv = FindArg (0); /* Next list element */
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/* End of list so... */
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if ((fv == NULL) || (*fv == _T('\0')))
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{
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/* just exit this context */
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ExitBatch (NULL);
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continue;
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}
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if (_tcscspn (fv, _T("?*")) == _tcslen (fv))
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{
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/* element is wild file */
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bc->shiftlevel++; /* No use it and shift list */
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}
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else
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{
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/* Wild file spec, find first (or next) file name */
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if (bc->ffind)
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{
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/* First already done so do next */
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fv = FindNextFile (bc->hFind, bc->ffind) ? bc->ffind->cFileName : NULL;
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}
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else
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{
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/* For first find, allocate a find first block */
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if ((bc->ffind = (LPWIN32_FIND_DATA)cmd_alloc (sizeof (WIN32_FIND_DATA))) == NULL)
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{
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error_out_of_memory();
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return NULL;
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}
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bc->hFind = FindFirstFile (fv, bc->ffind);
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fv = !(bc->hFind==INVALID_HANDLE_VALUE) ? bc->ffind->cFileName : NULL;
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}
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if (fv == NULL)
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{
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/* Null indicates no more files.. */
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cmd_free (bc->ffind); /* free the buffer */
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bc->ffind = NULL;
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bc->shiftlevel++; /* On to next list element */
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continue;
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}
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}
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/* At this point, fv points to parameter string */
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bc->forvalue = fv;
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/* Double up % signs so they will get through the parser intact */
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while (*sp)
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{
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if (*sp == _T('%'))
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*dp++ = _T('%');
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*dp++ = *sp++;
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}
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*dp++ = _T('\n');
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*dp = _T('\0');
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return textline;
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}
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if (!FileGetString (bc->hBatchFile, textline, sizeof (textline) / sizeof (textline[0]) - 1))
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{
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TRACE ("ReadBatchLine(): Reached EOF!\n");
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@ -10,18 +10,16 @@
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typedef struct tagBATCHCONTEXT
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{
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struct tagBATCHCONTEXT *prev;
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LPWIN32_FIND_DATA ffind;
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HANDLE hBatchFile;
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TCHAR BatchFilePath[MAX_PATH];
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LPTSTR forproto;
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LPTSTR params;
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LPTSTR raw_params; /* Holds the raw params given by the input */
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INT shiftlevel;
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BOOL bEcho; /* Preserve echo flag across batch calls */
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HANDLE hFind; /* Preserve find handle when doing a for */
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REDIRECTION *RedirList;
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TCHAR forvar;
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LPTSTR forvalue;
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UINT forvarcount;
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LPTSTR *forvalues;
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} BATCH_CONTEXT, *LPBATCH_CONTEXT;
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@ -84,7 +84,7 @@ INT cmd_call (LPTSTR param)
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bc->params = NULL;
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bc->shiftlevel = 0;
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bc->forvar = 0; /* HBP004 */
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bc->forproto = NULL; /* HBP004 */
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bc->forvarcount = 0;
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bc->RedirList = NULL;
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ParseCommandLine (param);
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@ -914,6 +914,9 @@ ExecuteCommand(PARSED_COMMAND *Cmd)
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case C_IF:
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Success = ExecuteIf(Cmd);
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break;
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case C_FOR:
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Success = ExecuteFor(Cmd);
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break;
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}
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UndoRedirection(Cmd->Redirections, NULL);
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@ -1271,14 +1274,15 @@ SubstituteForVars(TCHAR *Src, TCHAR *Dest)
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{
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/* This might be a variable. Search the list of contexts for it */
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BATCH_CONTEXT *Ctx = bc;
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while (Ctx && Ctx->forvar != Src[1])
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while (Ctx && (UINT)(Src[1] - Ctx->forvar) >= Ctx->forvarcount)
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Ctx = Ctx->prev;
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if (Ctx)
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{
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/* Found it */
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if (Dest + _tcslen(Ctx->forvalue) > DestEnd)
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LPTSTR Value = Ctx->forvalues[Src[1] - Ctx->forvar];
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if (Dest + _tcslen(Value) > DestEnd)
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return FALSE;
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Dest = _stpcpy(Dest, Ctx->forvalue);
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Dest = _stpcpy(Dest, Value);
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Src += 2;
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continue;
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}
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@ -237,7 +237,12 @@ VOID CompleteFilename (LPTSTR, BOOL, LPTSTR, UINT);
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/* Prototypes for FOR.C */
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#define FOR_DIRS 1 /* /D */
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#define FOR_F 2 /* /F */
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#define FOR_LOOP 4 /* /L */
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#define FOR_RECURSIVE 8 /* /R */
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INT cmd_for (LPTSTR);
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BOOL ExecuteFor(struct _PARSED_COMMAND *Cmd);
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/* Prototypes for FREE.C */
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@ -342,7 +347,7 @@ INT CommandMsgbox (LPTSTR);
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/* Prototypes from PARSER.C */
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enum { C_COMMAND, C_QUIET, C_BLOCK, C_MULTI, C_IFFAILURE, C_IFSUCCESS, C_PIPE, C_IF };
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enum { C_COMMAND, C_QUIET, C_BLOCK, C_MULTI, C_IFFAILURE, C_IFSUCCESS, C_PIPE, C_IF, C_FOR };
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typedef struct _PARSED_COMMAND
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{
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struct _PARSED_COMMAND *Subcommands;
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@ -363,6 +368,14 @@ typedef struct _PARSED_COMMAND
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TCHAR *LeftArg;
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TCHAR *RightArg;
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} If;
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struct
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{
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BYTE Switches;
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TCHAR Variable;
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LPTSTR Params;
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LPTSTR List;
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struct tagBATCHCONTEXT *Context;
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} For;
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};
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} PARSED_COMMAND;
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PARSED_COMMAND *ParseCommand(LPTSTR Line);
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@ -33,27 +33,9 @@
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#include <precomp.h>
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/*
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* Perform FOR command.
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*
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* First check syntax is correct : FOR %v IN ( <list> ) DO <command>
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* v must be alphabetic, <command> must not be empty.
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*
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* If all is correct build a new bcontext structure which preserves
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* the necessary information so that readbatchline can expand
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* each the command prototype for each list element.
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*
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* You might look on a FOR as being a called batch file with one line
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* per list element.
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*/
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/* FOR is a special command, so this function is only used for showing help now */
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INT cmd_for (LPTSTR param)
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{
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LPBATCH_CONTEXT lpNew;
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LPTSTR pp;
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TCHAR var;
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TCHAR szMsg[RC_STRING_MAX_SIZE];
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TRACE ("cmd_for (\'%s\')\n", debugstr_aw(param));
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if (!_tcsncmp (param, _T("/?"), 2))
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@ -62,87 +44,459 @@ INT cmd_for (LPTSTR param)
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return 0;
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}
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/* Check that first element is % then an alpha char followed by space */
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if ((*param != _T('%')) || !_istalpha (*(param + 1)) || !_istspace (*(param + 2)))
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error_syntax(param);
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return 1;
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}
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/* Get the next element of the FOR's list */
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static BOOL GetNextElement(TCHAR **pStart, TCHAR **pEnd)
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{
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TCHAR *p = *pEnd;
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BOOL InQuotes = FALSE;
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while (_istspace(*p))
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p++;
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if (!*p)
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return FALSE;
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*pStart = p;
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while (*p && (InQuotes || !_istspace(*p)))
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InQuotes ^= (*p++ == _T('"'));
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*pEnd = p;
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return TRUE;
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}
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/* Execute a single instance of a FOR command */
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static void RunInstance(PARSED_COMMAND *Cmd)
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{
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if (bEcho && Cmd->Subcommands->Type != C_QUIET)
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{
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LoadString( CMD_ModuleHandle, STRING_FOR_ERROR, szMsg, RC_STRING_MAX_SIZE);
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error_syntax (szMsg);
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return 1;
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ConOutChar(_T('\n'));
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PrintPrompt();
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EchoCommand(Cmd->Subcommands);
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ConOutChar(_T('\n'));
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}
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/* Just run the command (variable expansion is done in DoDelayedExpansion) */
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ExecuteCommand(Cmd->Subcommands);
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}
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/* Check if this FOR should be terminated early */
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static BOOL Exiting(PARSED_COMMAND *Cmd)
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{
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/* Someone might have removed our context by calling ExitBatch */
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return bCtrlBreak || bc != Cmd->For.Context;
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}
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/* Read the contents of a text file into memory,
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* dynamically allocating enough space to hold it all */
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static LPTSTR ReadFileContents(FILE *InputFile, TCHAR *Buffer)
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{
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DWORD Len = 0;
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DWORD AllocLen = 1000;
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LPTSTR Contents = cmd_alloc(AllocLen * sizeof(TCHAR));
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if (!Contents)
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return NULL;
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while (_fgetts(Buffer, CMDLINE_LENGTH, InputFile))
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{
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DWORD CharsRead = _tcslen(Buffer);
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while (Len + CharsRead >= AllocLen)
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{
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Contents = cmd_realloc(Contents, (AllocLen *= 2) * sizeof(TCHAR));
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if (!Contents)
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return NULL;
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}
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_tcscpy(&Contents[Len], Buffer);
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Len += CharsRead;
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}
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param++;
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var = *param++; /* Save FOR var name */
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Contents[Len] = _T('\0');
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return Contents;
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}
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while (_istspace (*param))
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param++;
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static BOOL ForF(PARSED_COMMAND *Cmd, LPTSTR List, TCHAR *Buffer)
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{
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LPTSTR Delims = _T(" \t");
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TCHAR Eol = _T(';');
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INT SkipLines = 0;
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DWORD Tokens = (1 << 1);
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BOOL RemainderVar = FALSE;
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TCHAR StringQuote = _T('"');
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TCHAR CommandQuote = _T('\'');
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LPTSTR Variables[32];
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TCHAR *Start, *End;
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INT i;
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/* Check next element is 'IN' */
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if ((_tcsnicmp (param, _T("in"), 2) != 0) || !_istspace (*(param + 2)))
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if (Cmd->For.Params)
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{
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LoadString(CMD_ModuleHandle, STRING_FOR_ERROR1, szMsg, RC_STRING_MAX_SIZE);
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error_syntax(szMsg);
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return 1;
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TCHAR Quote = 0;
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TCHAR *Param = Cmd->For.Params;
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if (*Param == _T('"') || *Param == _T('\''))
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Quote = *Param++;
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while (*Param && *Param != Quote)
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{
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if (*Param <= _T(' '))
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{
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Param++;
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}
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else if (_tcsnicmp(Param, _T("delims="), 7) == 0)
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{
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Param += 7;
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/* delims=xxx: Specifies the list of characters that separate tokens */
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Delims = Param;
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while (*Param && *Param != Quote)
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{
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if (*Param == _T(' '))
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{
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TCHAR *FirstSpace = Param;
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Param += _tcsspn(Param, _T(" "));
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/* Exclude trailing spaces if this is not the last parameter */
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if (*Param && *Param != Quote)
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*FirstSpace = _T('\0');
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break;
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}
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Param++;
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}
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if (*Param == Quote)
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*Param++ = _T('\0');
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}
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else if (_tcsnicmp(Param, _T("eol="), 4) == 0)
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{
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Param += 4;
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/* eol=c: Lines starting with this character (may be
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* preceded by delimiters) are skipped. */
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Eol = *Param;
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if (Eol != _T('\0'))
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Param++;
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}
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else if (_tcsnicmp(Param, _T("skip="), 5) == 0)
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{
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/* skip=n: Number of lines to skip at the beginning of each file */
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SkipLines = _tcstol(Param + 5, &Param, 0);
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if (SkipLines <= 0)
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goto error;
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}
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else if (_tcsnicmp(Param, _T("tokens="), 7) == 0)
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{
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Param += 7;
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/* tokens=x,y,m-n: List of token numbers (must be between
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* 1 and 31) that will be assigned into variables. */
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Tokens = 0;
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while (*Param && *Param != Quote && *Param != _T('*'))
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{
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INT First = _tcstol(Param, &Param, 0);
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INT Last = First;
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if (First < 1)
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goto error;
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if (*Param == _T('-'))
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{
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/* It's a range of tokens */
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Last = _tcstol(Param + 1, &Param, 0);
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if (Last < First || Last > 31)
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goto error;
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}
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Tokens |= (2 << Last) - (1 << First);
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if (*Param != _T(','))
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break;
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Param++;
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}
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/* With an asterisk at the end, an additional variable
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* will be created to hold the remainder of the line
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* (after the last token specified). */
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if (*Param == _T('*'))
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{
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RemainderVar = TRUE;
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Param++;
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}
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}
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else if (_tcsnicmp(Param, _T("useback"), 7) == 0)
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{
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Param += 7;
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/* usebackq: Use alternate quote characters */
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StringQuote = _T('\'');
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CommandQuote = _T('`');
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/* Can be written as either "useback" or "usebackq" */
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if (_totlower(*Param) == _T('q'))
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Param++;
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}
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else
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{
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error:
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error_syntax(Param);
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return FALSE;
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}
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}
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}
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param += 2;
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while (_istspace (*param))
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param++;
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/* Count how many variables will be set: one for each token,
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* plus maybe one for the remainder */
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bc->forvarcount = RemainderVar;
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for (i = 1; i < 32; i++)
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bc->forvarcount += (Tokens >> i & 1);
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bc->forvalues = Variables;
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/* Folowed by a '(', find also matching ')' */
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if ((*param != _T('(')) || (NULL == (pp = _tcsrchr (param, _T(')')))))
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if (*List == StringQuote || *List == CommandQuote)
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{
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LoadString(CMD_ModuleHandle, STRING_FOR_ERROR2, szMsg, RC_STRING_MAX_SIZE);
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error_syntax(szMsg);
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return 1;
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/* Treat the entire "list" as one single element */
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Start = List;
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End = &List[_tcslen(List)];
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goto single_element;
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}
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*pp++ = _T('\0');
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param++; /* param now points at null terminated list */
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while (_istspace (*pp))
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pp++;
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/* Check DO follows */
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if ((_tcsnicmp (pp, _T("do"), 2) != 0) || !_istspace (*(pp + 2)))
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End = List;
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while (GetNextElement(&Start, &End))
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{
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LoadString(CMD_ModuleHandle, STRING_FOR_ERROR3, szMsg, RC_STRING_MAX_SIZE);
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error_syntax(szMsg);
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return 1;
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FILE *InputFile;
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LPTSTR FullInput, In, NextLine;
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INT Skip;
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single_element:
|
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if (*Start == StringQuote && End[-1] == StringQuote)
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{
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/* Input given directly as a string */
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End[-1] = _T('\0');
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FullInput = cmd_dup(Start + 1);
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}
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else if (*Start == CommandQuote && End[-1] == CommandQuote)
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{
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||||
/* Read input from a command */
|
||||
End[-1] = _T('\0');
|
||||
InputFile = _tpopen(Start + 1, _T("r"));
|
||||
if (!InputFile)
|
||||
{
|
||||
error_bad_command();
|
||||
return FALSE;
|
||||
}
|
||||
FullInput = ReadFileContents(InputFile, Buffer);
|
||||
_pclose(InputFile);
|
||||
}
|
||||
else
|
||||
{
|
||||
/* Read input from a file */
|
||||
TCHAR Temp = *End;
|
||||
*End = _T('\0');
|
||||
StripQuotes(Start);
|
||||
InputFile = _tfopen(Start, _T("r"));
|
||||
*End = Temp;
|
||||
if (!InputFile)
|
||||
{
|
||||
error_sfile_not_found(Start);
|
||||
return FALSE;
|
||||
}
|
||||
FullInput = ReadFileContents(InputFile, Buffer);
|
||||
fclose(InputFile);
|
||||
}
|
||||
|
||||
if (!FullInput)
|
||||
{
|
||||
error_out_of_memory();
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
/* Loop over the input line by line */
|
||||
In = FullInput;
|
||||
Skip = SkipLines;
|
||||
do
|
||||
{
|
||||
DWORD RemainingTokens = Tokens;
|
||||
LPTSTR *CurVar = Variables;
|
||||
|
||||
NextLine = _tcschr(In, _T('\n'));
|
||||
if (NextLine)
|
||||
*NextLine++ = _T('\0');
|
||||
|
||||
if (--Skip >= 0)
|
||||
continue;
|
||||
|
||||
/* Ignore lines where the first token starts with the eol character */
|
||||
In += _tcsspn(In, Delims);
|
||||
if (*In == Eol)
|
||||
continue;
|
||||
|
||||
while ((RemainingTokens >>= 1) != 0)
|
||||
{
|
||||
/* Save pointer to this token in a variable if requested */
|
||||
if (RemainingTokens & 1)
|
||||
*CurVar++ = In;
|
||||
/* Find end of token */
|
||||
In += _tcscspn(In, Delims);
|
||||
/* Nul-terminate it and advance to next token */
|
||||
if (*In)
|
||||
{
|
||||
*In++ = _T('\0');
|
||||
In += _tcsspn(In, Delims);
|
||||
}
|
||||
}
|
||||
/* Save pointer to remainder of line */
|
||||
*CurVar = In;
|
||||
|
||||
/* Don't run unless the line had enough tokens to fill at least one variable */
|
||||
if (*Variables[0])
|
||||
RunInstance(Cmd);
|
||||
} while (!Exiting(Cmd) && (In = NextLine) != NULL);
|
||||
cmd_free(FullInput);
|
||||
}
|
||||
|
||||
pp += 2;
|
||||
while (_istspace (*pp))
|
||||
pp++;
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
/* Check that command tail is not empty */
|
||||
if (*pp == _T('\0'))
|
||||
/* FOR /L: Do a numeric loop */
|
||||
static void ForLoop(PARSED_COMMAND *Cmd, LPTSTR List, TCHAR *Buffer)
|
||||
{
|
||||
enum { START, STEP, END };
|
||||
INT params[3] = { 0, 0, 0 };
|
||||
INT i;
|
||||
|
||||
TCHAR *Start, *End = List;
|
||||
for (i = 0; i < 3 && GetNextElement(&Start, &End); i++)
|
||||
params[i] = _tcstol(Start, NULL, 0);
|
||||
|
||||
i = params[START];
|
||||
while (!Exiting(Cmd) &&
|
||||
(params[STEP] >= 0 ? (i <= params[END]) : (i >= params[END])))
|
||||
{
|
||||
LoadString(CMD_ModuleHandle, STRING_FOR_ERROR4, szMsg, RC_STRING_MAX_SIZE);
|
||||
error_syntax(szMsg);
|
||||
return 1;
|
||||
_itot(i, Buffer, 10);
|
||||
RunInstance(Cmd);
|
||||
i += params[STEP];
|
||||
}
|
||||
}
|
||||
|
||||
/* Process a FOR in one directory. Stored in Buffer (up to BufPos) is a
|
||||
* string which is prefixed to each element of the list. In a normal FOR
|
||||
* it will be empty, but in FOR /R it will be the directory name. */
|
||||
static void ForDir(PARSED_COMMAND *Cmd, LPTSTR List, TCHAR *Buffer, TCHAR *BufPos)
|
||||
{
|
||||
TCHAR *Start, *End = List;
|
||||
while (!Exiting(Cmd) && GetNextElement(&Start, &End))
|
||||
{
|
||||
if (BufPos + (End - Start) > &Buffer[CMDLINE_LENGTH])
|
||||
continue;
|
||||
memcpy(BufPos, Start, (End - Start) * sizeof(TCHAR));
|
||||
BufPos[End - Start] = _T('\0');
|
||||
|
||||
if (_tcschr(BufPos, _T('?')) || _tcschr(BufPos, _T('*')))
|
||||
{
|
||||
WIN32_FIND_DATA w32fd;
|
||||
HANDLE hFind;
|
||||
TCHAR *FilePart;
|
||||
|
||||
StripQuotes(BufPos);
|
||||
hFind = FindFirstFile(Buffer, &w32fd);
|
||||
if (hFind == INVALID_HANDLE_VALUE)
|
||||
continue;
|
||||
FilePart = _tcsrchr(BufPos, _T('\\'));
|
||||
FilePart = FilePart ? FilePart + 1 : BufPos;
|
||||
do
|
||||
{
|
||||
if (w32fd.dwFileAttributes & FILE_ATTRIBUTE_HIDDEN)
|
||||
continue;
|
||||
if (!(w32fd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
|
||||
!= !(Cmd->For.Switches & FOR_DIRS))
|
||||
continue;
|
||||
if (_tcscmp(w32fd.cFileName, _T(".")) == 0 ||
|
||||
_tcscmp(w32fd.cFileName, _T("..")) == 0)
|
||||
continue;
|
||||
_tcscpy(FilePart, w32fd.cFileName);
|
||||
RunInstance(Cmd);
|
||||
} while (!Exiting(Cmd) && FindNextFile(hFind, &w32fd));
|
||||
FindClose(hFind);
|
||||
}
|
||||
else
|
||||
{
|
||||
RunInstance(Cmd);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/* FOR /R: Process a FOR in each directory of a tree, recursively. */
|
||||
static void ForRecursive(PARSED_COMMAND *Cmd, LPTSTR List, TCHAR *Buffer, TCHAR *BufPos)
|
||||
{
|
||||
HANDLE hFind;
|
||||
WIN32_FIND_DATA w32fd;
|
||||
|
||||
if (BufPos[-1] != _T('\\'))
|
||||
{
|
||||
*BufPos++ = _T('\\');
|
||||
*BufPos = _T('\0');
|
||||
}
|
||||
|
||||
/* OK all is correct, build a bcontext.... */
|
||||
lpNew = (LPBATCH_CONTEXT)cmd_alloc (sizeof (BATCH_CONTEXT));
|
||||
ForDir(Cmd, List, Buffer, BufPos);
|
||||
|
||||
_tcscpy(BufPos, _T("*"));
|
||||
hFind = FindFirstFile(Buffer, &w32fd);
|
||||
if (hFind == INVALID_HANDLE_VALUE)
|
||||
return;
|
||||
do
|
||||
{
|
||||
if (!(w32fd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY))
|
||||
continue;
|
||||
if (_tcscmp(w32fd.cFileName, _T(".")) == 0 ||
|
||||
_tcscmp(w32fd.cFileName, _T("..")) == 0)
|
||||
continue;
|
||||
ForRecursive(Cmd, List, Buffer, _stpcpy(BufPos, w32fd.cFileName));
|
||||
} while (!Exiting(Cmd) && FindNextFile(hFind, &w32fd));
|
||||
FindClose(hFind);
|
||||
}
|
||||
|
||||
BOOL
|
||||
ExecuteFor(PARSED_COMMAND *Cmd)
|
||||
{
|
||||
TCHAR Buffer[CMDLINE_LENGTH]; /* Buffer to hold the variable value */
|
||||
LPTSTR BufferPtr = Buffer;
|
||||
LPBATCH_CONTEXT lpNew;
|
||||
BOOL Success = TRUE;
|
||||
LPTSTR List = DoDelayedExpansion(Cmd->For.List);
|
||||
|
||||
if (!List)
|
||||
return FALSE;
|
||||
|
||||
/* Create our pseudo-batch-context */
|
||||
lpNew = cmd_alloc(sizeof(BATCH_CONTEXT));
|
||||
if (!lpNew)
|
||||
return FALSE;
|
||||
Cmd->For.Context = lpNew;
|
||||
|
||||
lpNew->prev = bc;
|
||||
bc = lpNew;
|
||||
|
||||
bc->hBatchFile = INVALID_HANDLE_VALUE;
|
||||
bc->ffind = NULL;
|
||||
bc->raw_params = NULL;
|
||||
bc->params = BatchParams (_T(""), param); /* Split out list */
|
||||
bc->params = NULL;
|
||||
bc->shiftlevel = 0;
|
||||
bc->forvar = var;
|
||||
bc->forproto = cmd_dup (pp);
|
||||
bc->forvar = Cmd->For.Variable;
|
||||
bc->forvarcount = 1;
|
||||
bc->forvalues = &BufferPtr;
|
||||
if (bc->prev)
|
||||
bc->bEcho = bc->prev->bEcho;
|
||||
else
|
||||
bc->bEcho = bEcho;
|
||||
bc->RedirList = NULL;
|
||||
|
||||
if (Cmd->For.Switches & FOR_F)
|
||||
{
|
||||
Success = ForF(Cmd, List, Buffer);
|
||||
}
|
||||
else if (Cmd->For.Switches & FOR_LOOP)
|
||||
{
|
||||
ForLoop(Cmd, List, Buffer);
|
||||
}
|
||||
else if (Cmd->For.Switches & FOR_RECURSIVE)
|
||||
{
|
||||
DWORD Len = GetFullPathName(Cmd->For.Params ? Cmd->For.Params : _T("."),
|
||||
MAX_PATH, Buffer, NULL);
|
||||
ForRecursive(Cmd, List, Buffer, &Buffer[Len]);
|
||||
}
|
||||
else
|
||||
{
|
||||
ForDir(Cmd, List, Buffer, Buffer);
|
||||
}
|
||||
|
||||
return 0;
|
||||
/* Remove our context, unless someone already did that */
|
||||
if (bc == lpNew)
|
||||
ExitBatch(NULL);
|
||||
|
||||
cmd_free(List);
|
||||
return Success;
|
||||
}
|
||||
|
||||
/* EOF */
|
||||
|
|
|
|||
|
|
@ -413,6 +413,115 @@ condition_done:
|
|||
return Cmd;
|
||||
}
|
||||
|
||||
/* Parse a FOR command.
|
||||
* Syntax is: FOR [options] %var IN (list) DO command */
|
||||
static PARSED_COMMAND *ParseFor(void)
|
||||
{
|
||||
PARSED_COMMAND *Cmd = cmd_alloc(sizeof(PARSED_COMMAND));
|
||||
TCHAR List[CMDLINE_LENGTH];
|
||||
TCHAR *Pos = List;
|
||||
|
||||
memset(Cmd, 0, sizeof(PARSED_COMMAND));
|
||||
Cmd->Type = C_FOR;
|
||||
|
||||
while (1)
|
||||
{
|
||||
if (_tcsicmp(CurrentToken, _T("/D")) == 0)
|
||||
Cmd->For.Switches |= FOR_DIRS;
|
||||
else if (_tcsicmp(CurrentToken, _T("/F")) == 0)
|
||||
{
|
||||
Cmd->For.Switches |= FOR_F;
|
||||
if (!Cmd->For.Params)
|
||||
{
|
||||
ParseToken(0, STANDARD_SEPS);
|
||||
if (CurrentToken[0] == _T('/') || CurrentToken[0] == _T('%'))
|
||||
break;
|
||||
Cmd->For.Params = cmd_dup(CurrentToken);
|
||||
}
|
||||
}
|
||||
else if (_tcsicmp(CurrentToken, _T("/L")) == 0)
|
||||
Cmd->For.Switches |= FOR_LOOP;
|
||||
else if (_tcsicmp(CurrentToken, _T("/R")) == 0)
|
||||
{
|
||||
Cmd->For.Switches |= FOR_RECURSIVE;
|
||||
if (!Cmd->For.Params)
|
||||
{
|
||||
ParseToken(0, STANDARD_SEPS);
|
||||
if (CurrentToken[0] == _T('/') || CurrentToken[0] == _T('%'))
|
||||
break;
|
||||
StripQuotes(CurrentToken);
|
||||
Cmd->For.Params = cmd_dup(CurrentToken);
|
||||
}
|
||||
}
|
||||
else
|
||||
break;
|
||||
ParseToken(0, STANDARD_SEPS);
|
||||
}
|
||||
|
||||
/* Make sure there aren't two different switches specified
|
||||
* at the same time, unless they're /D and /R */
|
||||
if ((Cmd->For.Switches & (Cmd->For.Switches - 1)) != 0
|
||||
&& Cmd->For.Switches != (FOR_DIRS | FOR_RECURSIVE))
|
||||
{
|
||||
goto error;
|
||||
}
|
||||
|
||||
/* Variable name should be % and just one other character */
|
||||
if (CurrentToken[0] != _T('%') || _tcslen(CurrentToken) != 2)
|
||||
goto error;
|
||||
Cmd->For.Variable = CurrentToken[1];
|
||||
|
||||
ParseToken(0, STANDARD_SEPS);
|
||||
if (_tcsicmp(CurrentToken, _T("in")) != 0)
|
||||
goto error;
|
||||
|
||||
if (ParseToken(_T('('), STANDARD_SEPS) != TOK_BEGIN_BLOCK)
|
||||
goto error;
|
||||
|
||||
while (1)
|
||||
{
|
||||
int Type;
|
||||
|
||||
/* Pretend we're inside a block so the tokenizer will stop on ')' */
|
||||
InsideBlock++;
|
||||
Type = ParseToken(0, STANDARD_SEPS);
|
||||
InsideBlock--;
|
||||
|
||||
if (Type == TOK_END_BLOCK)
|
||||
break;
|
||||
|
||||
if (Type != TOK_NORMAL)
|
||||
goto error;
|
||||
|
||||
if (Pos != List)
|
||||
*Pos++ = _T(' ');
|
||||
|
||||
if (Pos + _tcslen(CurrentToken) >= &List[CMDLINE_LENGTH])
|
||||
goto error;
|
||||
Pos = _stpcpy(Pos, CurrentToken);
|
||||
}
|
||||
*Pos = _T('\0');
|
||||
Cmd->For.List = cmd_dup(List);
|
||||
|
||||
ParseToken(0, STANDARD_SEPS);
|
||||
if (_tcsicmp(CurrentToken, _T("do")) != 0)
|
||||
goto error;
|
||||
|
||||
Cmd->Subcommands = ParseCommandOp(C_OP_LOWEST);
|
||||
if (Cmd->Subcommands == NULL)
|
||||
{
|
||||
FreeCommand(Cmd);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
return Cmd;
|
||||
|
||||
error:
|
||||
FreeCommand(Cmd);
|
||||
ParseError();
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static PARSED_COMMAND *ParseCommandPart(void)
|
||||
{
|
||||
TCHAR ParsedLine[CMDLINE_LENGTH];
|
||||
|
|
@ -486,7 +595,8 @@ static PARSED_COMMAND *ParseCommandPart(void)
|
|||
TailOffset = Pos - ParsedLine;
|
||||
|
||||
/* Check for special forms */
|
||||
if (_tcsicmp(ParsedLine, _T("if")) == 0)
|
||||
if (_tcsicmp(ParsedLine, _T("for")) == 0 ||
|
||||
_tcsicmp(ParsedLine, _T("if")) == 0)
|
||||
{
|
||||
ParseToken(0, STANDARD_SEPS);
|
||||
/* Do special parsing only if it's not followed by /? */
|
||||
|
|
@ -498,7 +608,7 @@ static PARSED_COMMAND *ParseCommandPart(void)
|
|||
FreeRedirection(RedirList);
|
||||
return NULL;
|
||||
}
|
||||
return ParseIf();
|
||||
return _totlower(*ParsedLine) == _T('f') ? ParseFor() : ParseIf();
|
||||
}
|
||||
Pos = _stpcpy(Pos, _T(" /?"));
|
||||
}
|
||||
|
|
@ -665,6 +775,17 @@ EchoCommand(PARSED_COMMAND *Cmd)
|
|||
EchoCommand(Sub->Next);
|
||||
}
|
||||
break;
|
||||
case C_FOR:
|
||||
ConOutPrintf(_T("for"));
|
||||
if (Cmd->For.Switches & FOR_DIRS) ConOutPrintf(_T(" /D"));
|
||||
if (Cmd->For.Switches & FOR_F) ConOutPrintf(_T(" /F"));
|
||||
if (Cmd->For.Switches & FOR_LOOP) ConOutPrintf(_T(" /L"));
|
||||
if (Cmd->For.Switches & FOR_RECURSIVE) ConOutPrintf(_T(" /R"));
|
||||
if (Cmd->For.Params)
|
||||
ConOutPrintf(_T(" %s"), Cmd->For.Params);
|
||||
ConOutPrintf(_T(" %%%c in (%s) do "), Cmd->For.Variable, Cmd->For.List);
|
||||
EchoCommand(Cmd->Subcommands);
|
||||
break;
|
||||
}
|
||||
|
||||
for (Redir = Cmd->Redirections; Redir; Redir = Redir->Next)
|
||||
|
|
@ -688,5 +809,10 @@ FreeCommand(PARSED_COMMAND *Cmd)
|
|||
cmd_free(Cmd->If.LeftArg);
|
||||
cmd_free(Cmd->If.RightArg);
|
||||
}
|
||||
else if (Cmd->Type == C_FOR)
|
||||
{
|
||||
cmd_free(Cmd->For.Params);
|
||||
cmd_free(Cmd->For.List);
|
||||
}
|
||||
cmd_free(Cmd);
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue