1905 lines
47 KiB
C
1905 lines
47 KiB
C
/*
|
||
* tclCmdAH.c --
|
||
*
|
||
* This file contains the top-level command routines for most of the Tcl
|
||
* built-in commands whose names begin with the letters A to H.
|
||
*
|
||
* Copyright (c) 1987-1993 The Regents of the University of California.
|
||
* Copyright (c) 1994-1997 Sun Microsystems, Inc.
|
||
*
|
||
* See the file "license.terms" for information on usage and redistribution of
|
||
* this file, and for a DISCLAIMER OF ALL WARRANTIES.
|
||
*/
|
||
|
||
#include "tclInt.h"
|
||
#include <locale.h>
|
||
|
||
/*
|
||
* Prototypes for local procedures defined in this file:
|
||
*/
|
||
|
||
static int CheckAccess(Tcl_Interp *interp, Tcl_Obj *pathPtr,
|
||
int mode);
|
||
static int EncodingDirsObjCmd(ClientData dummy,
|
||
Tcl_Interp *interp, int objc,
|
||
Tcl_Obj *const objv[]);
|
||
static int GetStatBuf(Tcl_Interp *interp, Tcl_Obj *pathPtr,
|
||
Tcl_FSStatProc *statProc, Tcl_StatBuf *statPtr);
|
||
static const char * GetTypeFromMode(int mode);
|
||
static int StoreStatData(Tcl_Interp *interp, Tcl_Obj *varName,
|
||
Tcl_StatBuf *statPtr);
|
||
|
||
/*
|
||
*----------------------------------------------------------------------
|
||
*
|
||
* Tcl_BreakObjCmd --
|
||
*
|
||
* This procedure is invoked to process the "break" Tcl command. See the
|
||
* user documentation for details on what it does.
|
||
*
|
||
* With the bytecode compiler, this procedure is only called when a
|
||
* command name is computed at runtime, and is "break" or the name to
|
||
* which "break" was renamed: e.g., "set z break; $z"
|
||
*
|
||
* Results:
|
||
* A standard Tcl result.
|
||
*
|
||
* Side effects:
|
||
* See the user documentation.
|
||
*
|
||
*----------------------------------------------------------------------
|
||
*/
|
||
|
||
/* ARGSUSED */
|
||
int
|
||
Tcl_BreakObjCmd(
|
||
ClientData dummy, /* Not used. */
|
||
Tcl_Interp *interp, /* Current interpreter. */
|
||
int objc, /* Number of arguments. */
|
||
Tcl_Obj *const objv[]) /* Argument objects. */
|
||
{
|
||
if (objc != 1) {
|
||
Tcl_WrongNumArgs(interp, 1, objv, NULL);
|
||
return TCL_ERROR;
|
||
}
|
||
return TCL_BREAK;
|
||
}
|
||
|
||
/*
|
||
*----------------------------------------------------------------------
|
||
*
|
||
* Tcl_CaseObjCmd --
|
||
*
|
||
* This procedure is invoked to process the "case" Tcl command. See the
|
||
* user documentation for details on what it does. THIS COMMAND IS
|
||
* OBSOLETE AND DEPRECATED. SLATED FOR REMOVAL IN TCL 9.0.
|
||
*
|
||
* Results:
|
||
* A standard Tcl object result.
|
||
*
|
||
* Side effects:
|
||
* See the user documentation.
|
||
*
|
||
*----------------------------------------------------------------------
|
||
*/
|
||
|
||
/* ARGSUSED */
|
||
int
|
||
Tcl_CaseObjCmd(
|
||
ClientData dummy, /* Not used. */
|
||
Tcl_Interp *interp, /* Current interpreter. */
|
||
int objc, /* Number of arguments. */
|
||
Tcl_Obj *const objv[]) /* Argument objects. */
|
||
{
|
||
register int i;
|
||
int body, result, caseObjc;
|
||
char *stringPtr, *arg;
|
||
Tcl_Obj *const *caseObjv;
|
||
Tcl_Obj *armPtr;
|
||
|
||
if (objc < 3) {
|
||
Tcl_WrongNumArgs(interp, 1, objv,
|
||
"string ?in? patList body ... ?default body?");
|
||
return TCL_ERROR;
|
||
}
|
||
|
||
stringPtr = TclGetString(objv[1]);
|
||
body = -1;
|
||
|
||
arg = TclGetString(objv[2]);
|
||
if (strcmp(arg, "in") == 0) {
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||
i = 3;
|
||
} else {
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||
i = 2;
|
||
}
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caseObjc = objc - i;
|
||
caseObjv = objv + i;
|
||
|
||
/*
|
||
* If all of the pattern/command pairs are lumped into a single argument,
|
||
* split them out again.
|
||
*/
|
||
|
||
if (caseObjc == 1) {
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||
Tcl_Obj **newObjv;
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||
|
||
TclListObjGetElements(interp, caseObjv[0], &caseObjc, &newObjv);
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||
caseObjv = newObjv;
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||
}
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||
|
||
for (i = 0; i < caseObjc; i += 2) {
|
||
int patObjc, j;
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||
const char **patObjv;
|
||
char *pat, *p;
|
||
|
||
if (i == (caseObjc - 1)) {
|
||
Tcl_ResetResult(interp);
|
||
Tcl_AppendResult(interp, "extra case pattern with no body", NULL);
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||
return TCL_ERROR;
|
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}
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||
|
||
/*
|
||
* Check for special case of single pattern (no list) with no
|
||
* backslash sequences.
|
||
*/
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||
|
||
pat = TclGetString(caseObjv[i]);
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||
for (p = pat; *p != '\0'; p++) {
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||
if (TclIsSpaceProc(*p) || (*p == '\\')) {
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||
break;
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||
}
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||
}
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||
if (*p == '\0') {
|
||
if ((*pat == 'd') && (strcmp(pat, "default") == 0)) {
|
||
body = i + 1;
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||
}
|
||
if (Tcl_StringMatch(stringPtr, pat)) {
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||
body = i + 1;
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||
goto match;
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||
}
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||
continue;
|
||
}
|
||
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||
/*
|
||
* Break up pattern lists, then check each of the patterns in the
|
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* list.
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||
*/
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||
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||
result = Tcl_SplitList(interp, pat, &patObjc, &patObjv);
|
||
if (result != TCL_OK) {
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||
return result;
|
||
}
|
||
for (j = 0; j < patObjc; j++) {
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||
if (Tcl_StringMatch(stringPtr, patObjv[j])) {
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||
body = i + 1;
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||
break;
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||
}
|
||
}
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ckfree((char *) patObjv);
|
||
if (j < patObjc) {
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||
break;
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||
}
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}
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||
match:
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||
if (body != -1) {
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armPtr = caseObjv[body - 1];
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result = Tcl_EvalObjEx(interp, caseObjv[body], 0);
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||
if (result == TCL_ERROR) {
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||
Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf(
|
||
"\n (\"%.50s\" arm line %d)",
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||
TclGetString(armPtr), interp->errorLine));
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||
}
|
||
return result;
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||
}
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||
|
||
/*
|
||
* Nothing matched: return nothing.
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||
*/
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||
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return TCL_OK;
|
||
}
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||
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/*
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*----------------------------------------------------------------------
|
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*
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* Tcl_CatchObjCmd --
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||
*
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* This object-based procedure is invoked to process the "catch" Tcl
|
||
* command. See the user documentation for details on what it does.
|
||
*
|
||
* Results:
|
||
* A standard Tcl object result.
|
||
*
|
||
* Side effects:
|
||
* See the user documentation.
|
||
*
|
||
*----------------------------------------------------------------------
|
||
*/
|
||
|
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/* ARGSUSED */
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||
int
|
||
Tcl_CatchObjCmd(
|
||
ClientData dummy, /* Not used. */
|
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Tcl_Interp *interp, /* Current interpreter. */
|
||
int objc, /* Number of arguments. */
|
||
Tcl_Obj *const objv[]) /* Argument objects. */
|
||
{
|
||
Tcl_Obj *varNamePtr = NULL;
|
||
Tcl_Obj *optionVarNamePtr = NULL;
|
||
int result;
|
||
Interp *iPtr = (Interp *) interp;
|
||
|
||
if ((objc < 2) || (objc > 4)) {
|
||
Tcl_WrongNumArgs(interp, 1, objv,
|
||
"script ?resultVarName? ?optionVarName?");
|
||
return TCL_ERROR;
|
||
}
|
||
|
||
if (objc >= 3) {
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||
varNamePtr = objv[2];
|
||
}
|
||
if (objc == 4) {
|
||
optionVarNamePtr = objv[3];
|
||
}
|
||
|
||
/*
|
||
* TIP #280. Make invoking context available to caught script.
|
||
*/
|
||
|
||
result = TclEvalObjEx(interp, objv[1], 0, iPtr->cmdFramePtr, 1);
|
||
|
||
/*
|
||
* We disable catch in interpreters where the limit has been exceeded.
|
||
*/
|
||
|
||
if (Tcl_LimitExceeded(interp)) {
|
||
Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf(
|
||
"\n (\"catch\" body line %d)", interp->errorLine));
|
||
return TCL_ERROR;
|
||
}
|
||
|
||
if (objc >= 3) {
|
||
if (NULL == Tcl_ObjSetVar2(interp, varNamePtr, NULL,
|
||
Tcl_GetObjResult(interp), 0)) {
|
||
Tcl_ResetResult(interp);
|
||
Tcl_AppendResult(interp,
|
||
"couldn't save command result in variable", NULL);
|
||
return TCL_ERROR;
|
||
}
|
||
}
|
||
if (objc == 4) {
|
||
Tcl_Obj *options = Tcl_GetReturnOptions(interp, result);
|
||
if (NULL == Tcl_ObjSetVar2(interp, optionVarNamePtr, NULL,
|
||
options, 0)) {
|
||
Tcl_ResetResult(interp);
|
||
Tcl_AppendResult(interp,
|
||
"couldn't save return options in variable", NULL);
|
||
return TCL_ERROR;
|
||
}
|
||
}
|
||
|
||
Tcl_ResetResult(interp);
|
||
Tcl_SetObjResult(interp, Tcl_NewIntObj(result));
|
||
return TCL_OK;
|
||
}
|
||
|
||
/*
|
||
*----------------------------------------------------------------------
|
||
*
|
||
* Tcl_CdObjCmd --
|
||
*
|
||
* This procedure is invoked to process the "cd" Tcl command. See the
|
||
* user documentation for details on what it does.
|
||
*
|
||
* Results:
|
||
* A standard Tcl result.
|
||
*
|
||
* Side effects:
|
||
* See the user documentation.
|
||
*
|
||
*----------------------------------------------------------------------
|
||
*/
|
||
|
||
/* ARGSUSED */
|
||
int
|
||
Tcl_CdObjCmd(
|
||
ClientData dummy, /* Not used. */
|
||
Tcl_Interp *interp, /* Current interpreter. */
|
||
int objc, /* Number of arguments. */
|
||
Tcl_Obj *const objv[]) /* Argument objects. */
|
||
{
|
||
Tcl_Obj *dir;
|
||
int result;
|
||
|
||
if (objc > 2) {
|
||
Tcl_WrongNumArgs(interp, 1, objv, "?dirName?");
|
||
return TCL_ERROR;
|
||
}
|
||
|
||
if (objc == 2) {
|
||
dir = objv[1];
|
||
} else {
|
||
TclNewLiteralStringObj(dir, "~");
|
||
Tcl_IncrRefCount(dir);
|
||
}
|
||
if (Tcl_FSConvertToPathType(interp, dir) != TCL_OK) {
|
||
result = TCL_ERROR;
|
||
} else {
|
||
result = Tcl_FSChdir(dir);
|
||
if (result != TCL_OK) {
|
||
Tcl_AppendResult(interp, "couldn't change working directory to \"",
|
||
TclGetString(dir), "\": ", Tcl_PosixError(interp), NULL);
|
||
result = TCL_ERROR;
|
||
}
|
||
}
|
||
if (objc != 2) {
|
||
Tcl_DecrRefCount(dir);
|
||
}
|
||
return result;
|
||
}
|
||
|
||
/*
|
||
*----------------------------------------------------------------------
|
||
*
|
||
* Tcl_ConcatObjCmd --
|
||
*
|
||
* This object-based procedure is invoked to process the "concat" Tcl
|
||
* command. See the user documentation for details on what it does.
|
||
*
|
||
* Results:
|
||
* A standard Tcl object result.
|
||
*
|
||
* Side effects:
|
||
* See the user documentation.
|
||
*
|
||
*----------------------------------------------------------------------
|
||
*/
|
||
|
||
/* ARGSUSED */
|
||
int
|
||
Tcl_ConcatObjCmd(
|
||
ClientData dummy, /* Not used. */
|
||
Tcl_Interp *interp, /* Current interpreter. */
|
||
int objc, /* Number of arguments. */
|
||
Tcl_Obj *const objv[]) /* Argument objects. */
|
||
{
|
||
if (objc >= 2) {
|
||
Tcl_SetObjResult(interp, Tcl_ConcatObj(objc-1, objv+1));
|
||
}
|
||
return TCL_OK;
|
||
}
|
||
|
||
/*
|
||
*----------------------------------------------------------------------
|
||
*
|
||
* Tcl_ContinueObjCmd --
|
||
*
|
||
* This procedure is invoked to process the "continue" Tcl command. See
|
||
* the user documentation for details on what it does.
|
||
*
|
||
* With the bytecode compiler, this procedure is only called when a
|
||
* command name is computed at runtime, and is "continue" or the name to
|
||
* which "continue" was renamed: e.g., "set z continue; $z"
|
||
*
|
||
* Results:
|
||
* A standard Tcl result.
|
||
*
|
||
* Side effects:
|
||
* See the user documentation.
|
||
*
|
||
*----------------------------------------------------------------------
|
||
*/
|
||
|
||
/* ARGSUSED */
|
||
int
|
||
Tcl_ContinueObjCmd(
|
||
ClientData dummy, /* Not used. */
|
||
Tcl_Interp *interp, /* Current interpreter. */
|
||
int objc, /* Number of arguments. */
|
||
Tcl_Obj *const objv[]) /* Argument objects. */
|
||
{
|
||
if (objc != 1) {
|
||
Tcl_WrongNumArgs(interp, 1, objv, NULL);
|
||
return TCL_ERROR;
|
||
}
|
||
return TCL_CONTINUE;
|
||
}
|
||
|
||
/*
|
||
*----------------------------------------------------------------------
|
||
*
|
||
* Tcl_EncodingObjCmd --
|
||
*
|
||
* This command manipulates encodings.
|
||
*
|
||
* Results:
|
||
* A standard Tcl result.
|
||
*
|
||
* Side effects:
|
||
* See the user documentation.
|
||
*
|
||
*----------------------------------------------------------------------
|
||
*/
|
||
|
||
int
|
||
Tcl_EncodingObjCmd(
|
||
ClientData dummy, /* Not used. */
|
||
Tcl_Interp *interp, /* Current interpreter. */
|
||
int objc, /* Number of arguments. */
|
||
Tcl_Obj *const objv[]) /* Argument objects. */
|
||
{
|
||
int index;
|
||
|
||
static const char *optionStrings[] = {
|
||
"convertfrom", "convertto", "dirs", "names", "system",
|
||
NULL
|
||
};
|
||
enum options {
|
||
ENC_CONVERTFROM, ENC_CONVERTTO, ENC_DIRS, ENC_NAMES, ENC_SYSTEM
|
||
};
|
||
|
||
if (objc < 2) {
|
||
Tcl_WrongNumArgs(interp, 1, objv, "option ?arg ...?");
|
||
return TCL_ERROR;
|
||
}
|
||
if (Tcl_GetIndexFromObj(interp, objv[1], optionStrings, "option", 0,
|
||
&index) != TCL_OK) {
|
||
return TCL_ERROR;
|
||
}
|
||
|
||
switch ((enum options) index) {
|
||
case ENC_CONVERTTO:
|
||
case ENC_CONVERTFROM: {
|
||
Tcl_Obj *data;
|
||
Tcl_DString ds;
|
||
Tcl_Encoding encoding;
|
||
int length;
|
||
char *stringPtr;
|
||
|
||
if (objc == 3) {
|
||
encoding = Tcl_GetEncoding(interp, NULL);
|
||
data = objv[2];
|
||
} else if (objc == 4) {
|
||
if (Tcl_GetEncodingFromObj(interp, objv[2], &encoding) != TCL_OK) {
|
||
return TCL_ERROR;
|
||
}
|
||
data = objv[3];
|
||
} else {
|
||
Tcl_WrongNumArgs(interp, 2, objv, "?encoding? data");
|
||
return TCL_ERROR;
|
||
}
|
||
|
||
if ((enum options) index == ENC_CONVERTFROM) {
|
||
/*
|
||
* Treat the string as binary data.
|
||
*/
|
||
|
||
stringPtr = (char *) Tcl_GetByteArrayFromObj(data, &length);
|
||
Tcl_ExternalToUtfDString(encoding, stringPtr, length, &ds);
|
||
|
||
/*
|
||
* Note that we cannot use Tcl_DStringResult here because it will
|
||
* truncate the string at the first null byte.
|
||
*/
|
||
|
||
Tcl_SetObjResult(interp, Tcl_NewStringObj(
|
||
Tcl_DStringValue(&ds), Tcl_DStringLength(&ds)));
|
||
Tcl_DStringFree(&ds);
|
||
} else {
|
||
/*
|
||
* Store the result as binary data.
|
||
*/
|
||
|
||
stringPtr = TclGetStringFromObj(data, &length);
|
||
Tcl_UtfToExternalDString(encoding, stringPtr, length, &ds);
|
||
Tcl_SetObjResult(interp, Tcl_NewByteArrayObj(
|
||
(unsigned char *) Tcl_DStringValue(&ds),
|
||
Tcl_DStringLength(&ds)));
|
||
Tcl_DStringFree(&ds);
|
||
}
|
||
|
||
Tcl_FreeEncoding(encoding);
|
||
break;
|
||
}
|
||
case ENC_DIRS:
|
||
return EncodingDirsObjCmd(dummy, interp, objc, objv);
|
||
case ENC_NAMES:
|
||
if (objc > 2) {
|
||
Tcl_WrongNumArgs(interp, 2, objv, NULL);
|
||
return TCL_ERROR;
|
||
}
|
||
Tcl_GetEncodingNames(interp);
|
||
break;
|
||
case ENC_SYSTEM:
|
||
if (objc > 3) {
|
||
Tcl_WrongNumArgs(interp, 2, objv, "?encoding?");
|
||
return TCL_ERROR;
|
||
}
|
||
if (objc == 2) {
|
||
Tcl_SetObjResult(interp, Tcl_NewStringObj(
|
||
Tcl_GetEncodingName(NULL), -1));
|
||
} else {
|
||
return Tcl_SetSystemEncoding(interp, TclGetString(objv[2]));
|
||
}
|
||
break;
|
||
}
|
||
return TCL_OK;
|
||
}
|
||
|
||
/*
|
||
*----------------------------------------------------------------------
|
||
*
|
||
* EncodingDirsObjCmd --
|
||
*
|
||
* This command manipulates the encoding search path.
|
||
*
|
||
* Results:
|
||
* A standard Tcl result.
|
||
*
|
||
* Side effects:
|
||
* Can set the encoding search path.
|
||
*
|
||
*----------------------------------------------------------------------
|
||
*/
|
||
|
||
int
|
||
EncodingDirsObjCmd(
|
||
ClientData dummy, /* Not used. */
|
||
Tcl_Interp *interp, /* Current interpreter. */
|
||
int objc, /* Number of arguments. */
|
||
Tcl_Obj *const objv[]) /* Argument objects. */
|
||
{
|
||
Tcl_Obj *dirListObj;
|
||
|
||
if (objc > 3) {
|
||
Tcl_WrongNumArgs(interp, 2, objv, "?dirList?");
|
||
return TCL_ERROR;
|
||
}
|
||
if (objc == 2) {
|
||
Tcl_SetObjResult(interp, Tcl_GetEncodingSearchPath());
|
||
return TCL_OK;
|
||
}
|
||
|
||
dirListObj = objv[2];
|
||
if (Tcl_SetEncodingSearchPath(dirListObj) == TCL_ERROR) {
|
||
Tcl_AppendResult(interp, "expected directory list but got \"",
|
||
TclGetString(dirListObj), "\"", NULL);
|
||
return TCL_ERROR;
|
||
}
|
||
Tcl_SetObjResult(interp, dirListObj);
|
||
return TCL_OK;
|
||
}
|
||
|
||
/*
|
||
*----------------------------------------------------------------------
|
||
*
|
||
* Tcl_ErrorObjCmd --
|
||
*
|
||
* This procedure is invoked to process the "error" Tcl command. See the
|
||
* user documentation for details on what it does.
|
||
*
|
||
* Results:
|
||
* A standard Tcl object result.
|
||
*
|
||
* Side effects:
|
||
* See the user documentation.
|
||
*
|
||
*----------------------------------------------------------------------
|
||
*/
|
||
|
||
/* ARGSUSED */
|
||
int
|
||
Tcl_ErrorObjCmd(
|
||
ClientData dummy, /* Not used. */
|
||
Tcl_Interp *interp, /* Current interpreter. */
|
||
int objc, /* Number of arguments. */
|
||
Tcl_Obj *const objv[]) /* Argument objects. */
|
||
{
|
||
Tcl_Obj *options, *optName;
|
||
|
||
if ((objc < 2) || (objc > 4)) {
|
||
Tcl_WrongNumArgs(interp, 1, objv, "message ?errorInfo? ?errorCode?");
|
||
return TCL_ERROR;
|
||
}
|
||
|
||
TclNewLiteralStringObj(options, "-code error -level 0");
|
||
|
||
if (objc >= 3) { /* Process the optional info argument */
|
||
TclNewLiteralStringObj(optName, "-errorinfo");
|
||
Tcl_ListObjAppendElement(NULL, options, optName);
|
||
Tcl_ListObjAppendElement(NULL, options, objv[2]);
|
||
}
|
||
|
||
if (objc >= 4) { /* Process the optional code argument */
|
||
TclNewLiteralStringObj(optName, "-errorcode");
|
||
Tcl_ListObjAppendElement(NULL, options, optName);
|
||
Tcl_ListObjAppendElement(NULL, options, objv[3]);
|
||
}
|
||
|
||
Tcl_SetObjResult(interp, objv[1]);
|
||
return Tcl_SetReturnOptions(interp, options);
|
||
}
|
||
|
||
/*
|
||
*----------------------------------------------------------------------
|
||
*
|
||
* Tcl_EvalObjCmd --
|
||
*
|
||
* This object-based procedure is invoked to process the "eval" Tcl
|
||
* command. See the user documentation for details on what it does.
|
||
*
|
||
* Results:
|
||
* A standard Tcl object result.
|
||
*
|
||
* Side effects:
|
||
* See the user documentation.
|
||
*
|
||
*----------------------------------------------------------------------
|
||
*/
|
||
|
||
/* ARGSUSED */
|
||
int
|
||
Tcl_EvalObjCmd(
|
||
ClientData dummy, /* Not used. */
|
||
Tcl_Interp *interp, /* Current interpreter. */
|
||
int objc, /* Number of arguments. */
|
||
Tcl_Obj *const objv[]) /* Argument objects. */
|
||
{
|
||
int result;
|
||
register Tcl_Obj *objPtr;
|
||
Interp *iPtr = (Interp *) interp;
|
||
|
||
if (objc < 2) {
|
||
Tcl_WrongNumArgs(interp, 1, objv, "arg ?arg ...?");
|
||
return TCL_ERROR;
|
||
}
|
||
|
||
if (objc == 2) {
|
||
/*
|
||
* TIP #280. Make argument location available to eval'd script.
|
||
*/
|
||
|
||
CmdFrame* invoker = iPtr->cmdFramePtr;
|
||
int word = 1;
|
||
TclArgumentGet (interp, objv[1], &invoker, &word);
|
||
|
||
result = TclEvalObjEx(interp, objv[1], TCL_EVAL_DIRECT,
|
||
invoker, word);
|
||
} else {
|
||
/*
|
||
* More than one argument: concatenate them together with spaces
|
||
* between, then evaluate the result. Tcl_EvalObjEx will delete the
|
||
* object when it decrements its refcount after eval'ing it.
|
||
*/
|
||
|
||
objPtr = Tcl_ConcatObj(objc-1, objv+1);
|
||
|
||
/*
|
||
* TIP #280. Make invoking context available to eval'd script.
|
||
*/
|
||
|
||
result = TclEvalObjEx(interp, objPtr, TCL_EVAL_DIRECT, NULL, 0);
|
||
}
|
||
if (result == TCL_ERROR) {
|
||
Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf(
|
||
"\n (\"eval\" body line %d)", interp->errorLine));
|
||
}
|
||
return result;
|
||
}
|
||
|
||
/*
|
||
*----------------------------------------------------------------------
|
||
*
|
||
* Tcl_ExitObjCmd --
|
||
*
|
||
* This procedure is invoked to process the "exit" Tcl command. See the
|
||
* user documentation for details on what it does.
|
||
*
|
||
* Results:
|
||
* A standard Tcl object result.
|
||
*
|
||
* Side effects:
|
||
* See the user documentation.
|
||
*
|
||
*----------------------------------------------------------------------
|
||
*/
|
||
|
||
/* ARGSUSED */
|
||
int
|
||
Tcl_ExitObjCmd(
|
||
ClientData dummy, /* Not used. */
|
||
Tcl_Interp *interp, /* Current interpreter. */
|
||
int objc, /* Number of arguments. */
|
||
Tcl_Obj *const objv[]) /* Argument objects. */
|
||
{
|
||
int value;
|
||
|
||
if ((objc != 1) && (objc != 2)) {
|
||
Tcl_WrongNumArgs(interp, 1, objv, "?returnCode?");
|
||
return TCL_ERROR;
|
||
}
|
||
|
||
if (objc == 1) {
|
||
value = 0;
|
||
} else if (Tcl_GetIntFromObj(interp, objv[1], &value) != TCL_OK) {
|
||
return TCL_ERROR;
|
||
}
|
||
Tcl_Exit(value);
|
||
/*NOTREACHED*/
|
||
return TCL_OK; /* Better not ever reach this! */
|
||
}
|
||
|
||
/*
|
||
*----------------------------------------------------------------------
|
||
*
|
||
* Tcl_ExprObjCmd --
|
||
*
|
||
* This object-based procedure is invoked to process the "expr" Tcl
|
||
* command. See the user documentation for details on what it does.
|
||
*
|
||
* With the bytecode compiler, this procedure is called in two
|
||
* circumstances: 1) to execute expr commands that are too complicated or
|
||
* too unsafe to try compiling directly into an inline sequence of
|
||
* instructions, and 2) to execute commands where the command name is
|
||
* computed at runtime and is "expr" or the name to which "expr" was
|
||
* renamed (e.g., "set z expr; $z 2+3")
|
||
*
|
||
* Results:
|
||
* A standard Tcl object result.
|
||
*
|
||
* Side effects:
|
||
* See the user documentation.
|
||
*
|
||
*----------------------------------------------------------------------
|
||
*/
|
||
|
||
/* ARGSUSED */
|
||
int
|
||
Tcl_ExprObjCmd(
|
||
ClientData dummy, /* Not used. */
|
||
Tcl_Interp *interp, /* Current interpreter. */
|
||
int objc, /* Number of arguments. */
|
||
Tcl_Obj *const objv[]) /* Argument objects. */
|
||
{
|
||
Tcl_Obj *resultPtr;
|
||
int result;
|
||
|
||
if (objc < 2) {
|
||
Tcl_WrongNumArgs(interp, 1, objv, "arg ?arg ...?");
|
||
return TCL_ERROR;
|
||
}
|
||
|
||
if (objc == 2) {
|
||
result = Tcl_ExprObj(interp, objv[1], &resultPtr);
|
||
} else {
|
||
Tcl_Obj *objPtr = Tcl_ConcatObj(objc-1, objv+1);
|
||
Tcl_IncrRefCount(objPtr);
|
||
result = Tcl_ExprObj(interp, objPtr, &resultPtr);
|
||
Tcl_DecrRefCount(objPtr);
|
||
}
|
||
|
||
if (result == TCL_OK) {
|
||
Tcl_SetObjResult(interp, resultPtr);
|
||
Tcl_DecrRefCount(resultPtr); /* Done with the result object */
|
||
}
|
||
|
||
return result;
|
||
}
|
||
|
||
/*
|
||
*----------------------------------------------------------------------
|
||
*
|
||
* Tcl_FileObjCmd --
|
||
*
|
||
* This procedure is invoked to process the "file" Tcl command. See the
|
||
* user documentation for details on what it does. PLEASE NOTE THAT THIS
|
||
* FAILS WITH FILENAMES AND PATHS WITH EMBEDDED NULLS. With the
|
||
* object-based Tcl_FS APIs, the above NOTE may no longer be true. In any
|
||
* case this assertion should be tested.
|
||
*
|
||
* Results:
|
||
* A standard Tcl result.
|
||
*
|
||
* Side effects:
|
||
* See the user documentation.
|
||
*
|
||
*----------------------------------------------------------------------
|
||
*/
|
||
|
||
/* ARGSUSED */
|
||
int
|
||
Tcl_FileObjCmd(
|
||
ClientData dummy, /* Not used. */
|
||
Tcl_Interp *interp, /* Current interpreter. */
|
||
int objc, /* Number of arguments. */
|
||
Tcl_Obj *const objv[]) /* Argument objects. */
|
||
{
|
||
int index, value;
|
||
Tcl_StatBuf buf;
|
||
struct utimbuf tval;
|
||
|
||
/*
|
||
* This list of constants should match the fileOption string array below.
|
||
*/
|
||
|
||
static const char *fileOptions[] = {
|
||
"atime", "attributes", "channels", "copy",
|
||
"delete",
|
||
"dirname", "executable", "exists", "extension",
|
||
"isdirectory", "isfile", "join", "link",
|
||
"lstat", "mtime", "mkdir", "nativename",
|
||
"normalize", "owned",
|
||
"pathtype", "readable", "readlink", "rename",
|
||
"rootname", "separator", "size", "split",
|
||
"stat", "system",
|
||
"tail", "type", "volumes", "writable",
|
||
NULL
|
||
};
|
||
enum options {
|
||
FCMD_ATIME, FCMD_ATTRIBUTES, FCMD_CHANNELS, FCMD_COPY,
|
||
FCMD_DELETE,
|
||
FCMD_DIRNAME, FCMD_EXECUTABLE, FCMD_EXISTS, FCMD_EXTENSION,
|
||
FCMD_ISDIRECTORY, FCMD_ISFILE, FCMD_JOIN, FCMD_LINK,
|
||
FCMD_LSTAT, FCMD_MTIME, FCMD_MKDIR, FCMD_NATIVENAME,
|
||
FCMD_NORMALIZE, FCMD_OWNED,
|
||
FCMD_PATHTYPE, FCMD_READABLE, FCMD_READLINK, FCMD_RENAME,
|
||
FCMD_ROOTNAME, FCMD_SEPARATOR, FCMD_SIZE, FCMD_SPLIT,
|
||
FCMD_STAT, FCMD_SYSTEM,
|
||
FCMD_TAIL, FCMD_TYPE, FCMD_VOLUMES, FCMD_WRITABLE
|
||
};
|
||
|
||
if (objc < 2) {
|
||
Tcl_WrongNumArgs(interp, 1, objv, "option ?arg ...?");
|
||
return TCL_ERROR;
|
||
}
|
||
if (Tcl_GetIndexFromObj(interp, objv[1], fileOptions, "option", 0,
|
||
&index) != TCL_OK) {
|
||
return TCL_ERROR;
|
||
}
|
||
|
||
switch ((enum options) index) {
|
||
|
||
case FCMD_ATIME:
|
||
case FCMD_MTIME:
|
||
if ((objc < 3) || (objc > 4)) {
|
||
Tcl_WrongNumArgs(interp, 2, objv, "name ?time?");
|
||
return TCL_ERROR;
|
||
}
|
||
if (GetStatBuf(interp, objv[2], Tcl_FSStat, &buf) != TCL_OK) {
|
||
return TCL_ERROR;
|
||
}
|
||
if (objc == 4) {
|
||
/*
|
||
* Need separate variable for reading longs from an object on
|
||
* 64-bit platforms. [Bug #698146]
|
||
*/
|
||
|
||
long newTime;
|
||
|
||
if (TclGetLongFromObj(interp, objv[3], &newTime) != TCL_OK) {
|
||
return TCL_ERROR;
|
||
}
|
||
|
||
if (index == FCMD_ATIME) {
|
||
tval.actime = newTime;
|
||
tval.modtime = buf.st_mtime;
|
||
} else { /* index == FCMD_MTIME */
|
||
tval.actime = buf.st_atime;
|
||
tval.modtime = newTime;
|
||
}
|
||
|
||
if (Tcl_FSUtime(objv[2], &tval) != 0) {
|
||
Tcl_AppendResult(interp, "could not set ",
|
||
(index == FCMD_ATIME ? "access" : "modification"),
|
||
" time for file \"", TclGetString(objv[2]), "\": ",
|
||
Tcl_PosixError(interp), NULL);
|
||
return TCL_ERROR;
|
||
}
|
||
|
||
/*
|
||
* Do another stat to ensure that the we return the new recognized
|
||
* atime - hopefully the same as the one we sent in. However, fs's
|
||
* like FAT don't even know what atime is.
|
||
*/
|
||
|
||
if (GetStatBuf(interp, objv[2], Tcl_FSStat, &buf) != TCL_OK) {
|
||
return TCL_ERROR;
|
||
}
|
||
}
|
||
|
||
Tcl_SetObjResult(interp, Tcl_NewLongObj((long)
|
||
(index == FCMD_ATIME ? buf.st_atime : buf.st_mtime)));
|
||
return TCL_OK;
|
||
case FCMD_ATTRIBUTES:
|
||
return TclFileAttrsCmd(interp, objc, objv);
|
||
case FCMD_CHANNELS:
|
||
if ((objc < 2) || (objc > 3)) {
|
||
Tcl_WrongNumArgs(interp, 2, objv, "?pattern?");
|
||
return TCL_ERROR;
|
||
}
|
||
return Tcl_GetChannelNamesEx(interp,
|
||
((objc == 2) ? NULL : TclGetString(objv[2])));
|
||
case FCMD_COPY:
|
||
return TclFileCopyCmd(interp, objc, objv);
|
||
case FCMD_DELETE:
|
||
return TclFileDeleteCmd(interp, objc, objv);
|
||
case FCMD_DIRNAME: {
|
||
Tcl_Obj *dirPtr;
|
||
|
||
if (objc != 3) {
|
||
goto only3Args;
|
||
}
|
||
dirPtr = TclPathPart(interp, objv[2], TCL_PATH_DIRNAME);
|
||
if (dirPtr == NULL) {
|
||
return TCL_ERROR;
|
||
} else {
|
||
Tcl_SetObjResult(interp, dirPtr);
|
||
Tcl_DecrRefCount(dirPtr);
|
||
return TCL_OK;
|
||
}
|
||
}
|
||
case FCMD_EXECUTABLE:
|
||
if (objc != 3) {
|
||
goto only3Args;
|
||
}
|
||
return CheckAccess(interp, objv[2], X_OK);
|
||
case FCMD_EXISTS:
|
||
if (objc != 3) {
|
||
goto only3Args;
|
||
}
|
||
return CheckAccess(interp, objv[2], F_OK);
|
||
case FCMD_EXTENSION: {
|
||
Tcl_Obj *ext;
|
||
|
||
if (objc != 3) {
|
||
goto only3Args;
|
||
}
|
||
ext = TclPathPart(interp, objv[2], TCL_PATH_EXTENSION);
|
||
if (ext != NULL) {
|
||
Tcl_SetObjResult(interp, ext);
|
||
Tcl_DecrRefCount(ext);
|
||
return TCL_OK;
|
||
} else {
|
||
return TCL_ERROR;
|
||
}
|
||
}
|
||
case FCMD_ISDIRECTORY:
|
||
if (objc != 3) {
|
||
goto only3Args;
|
||
}
|
||
value = 0;
|
||
if (GetStatBuf(NULL, objv[2], Tcl_FSStat, &buf) == TCL_OK) {
|
||
value = S_ISDIR(buf.st_mode);
|
||
}
|
||
Tcl_SetObjResult(interp, Tcl_NewBooleanObj(value));
|
||
return TCL_OK;
|
||
case FCMD_ISFILE:
|
||
if (objc != 3) {
|
||
goto only3Args;
|
||
}
|
||
value = 0;
|
||
if (GetStatBuf(NULL, objv[2], Tcl_FSStat, &buf) == TCL_OK) {
|
||
value = S_ISREG(buf.st_mode);
|
||
}
|
||
Tcl_SetObjResult(interp, Tcl_NewBooleanObj(value));
|
||
return TCL_OK;
|
||
case FCMD_OWNED:
|
||
if (objc != 3) {
|
||
goto only3Args;
|
||
}
|
||
value = 0;
|
||
if (GetStatBuf(NULL, objv[2], Tcl_FSStat, &buf) == TCL_OK) {
|
||
/*
|
||
* For Windows, there are no user ids associated with a file, so
|
||
* we always return 1.
|
||
*/
|
||
|
||
#if defined(__WIN32__) || defined(__CYGWIN__)
|
||
value = 1;
|
||
#else
|
||
value = (geteuid() == buf.st_uid);
|
||
#endif
|
||
}
|
||
Tcl_SetObjResult(interp, Tcl_NewBooleanObj(value));
|
||
return TCL_OK;
|
||
case FCMD_JOIN: {
|
||
Tcl_Obj *resObj;
|
||
|
||
if (objc < 3) {
|
||
Tcl_WrongNumArgs(interp, 2, objv, "name ?name ...?");
|
||
return TCL_ERROR;
|
||
}
|
||
resObj = Tcl_FSJoinToPath(NULL, objc - 2, objv + 2);
|
||
Tcl_SetObjResult(interp, resObj);
|
||
return TCL_OK;
|
||
}
|
||
case FCMD_LINK: {
|
||
Tcl_Obj *contents;
|
||
int index;
|
||
|
||
if (objc < 3 || objc > 5) {
|
||
Tcl_WrongNumArgs(interp, 2, objv, "?-linktype? linkname ?target?");
|
||
return TCL_ERROR;
|
||
}
|
||
|
||
/*
|
||
* Index of the 'source' argument.
|
||
*/
|
||
|
||
if (objc == 5) {
|
||
index = 3;
|
||
} else {
|
||
index = 2;
|
||
}
|
||
|
||
if (objc > 3) {
|
||
int linkAction;
|
||
if (objc == 5) {
|
||
/*
|
||
* We have a '-linktype' argument.
|
||
*/
|
||
|
||
static const char *linkTypes[] = {
|
||
"-symbolic", "-hard", NULL
|
||
};
|
||
if (Tcl_GetIndexFromObj(interp, objv[2], linkTypes, "switch",
|
||
0, &linkAction) != TCL_OK) {
|
||
return TCL_ERROR;
|
||
}
|
||
if (linkAction == 0) {
|
||
linkAction = TCL_CREATE_SYMBOLIC_LINK;
|
||
} else {
|
||
linkAction = TCL_CREATE_HARD_LINK;
|
||
}
|
||
} else {
|
||
linkAction = TCL_CREATE_SYMBOLIC_LINK|TCL_CREATE_HARD_LINK;
|
||
}
|
||
if (Tcl_FSConvertToPathType(interp, objv[index]) != TCL_OK) {
|
||
return TCL_ERROR;
|
||
}
|
||
|
||
/*
|
||
* Create link from source to target.
|
||
*/
|
||
|
||
contents = Tcl_FSLink(objv[index], objv[index+1], linkAction);
|
||
if (contents == NULL) {
|
||
/*
|
||
* We handle three common error cases specially, and for all
|
||
* other errors, we use the standard posix error message.
|
||
*/
|
||
|
||
if (errno == EEXIST) {
|
||
Tcl_AppendResult(interp, "could not create new link \"",
|
||
TclGetString(objv[index]),
|
||
"\": that path already exists", NULL);
|
||
} else if (errno == ENOENT) {
|
||
/*
|
||
* There are two cases here: either the target doesn't
|
||
* exist, or the directory of the src doesn't exist.
|
||
*/
|
||
|
||
int access;
|
||
Tcl_Obj *dirPtr = TclPathPart(interp, objv[index],
|
||
TCL_PATH_DIRNAME);
|
||
|
||
if (dirPtr == NULL) {
|
||
return TCL_ERROR;
|
||
}
|
||
access = Tcl_FSAccess(dirPtr, F_OK);
|
||
Tcl_DecrRefCount(dirPtr);
|
||
if (access != 0) {
|
||
Tcl_AppendResult(interp,
|
||
"could not create new link \"",
|
||
TclGetString(objv[index]),
|
||
"\": no such file or directory", NULL);
|
||
} else {
|
||
Tcl_AppendResult(interp,
|
||
"could not create new link \"",
|
||
TclGetString(objv[index]), "\": target \"",
|
||
TclGetString(objv[index+1]),
|
||
"\" doesn't exist", NULL);
|
||
}
|
||
} else {
|
||
Tcl_AppendResult(interp,
|
||
"could not create new link \"",
|
||
TclGetString(objv[index]), "\" pointing to \"",
|
||
TclGetString(objv[index+1]), "\": ",
|
||
Tcl_PosixError(interp), NULL);
|
||
}
|
||
return TCL_ERROR;
|
||
}
|
||
} else {
|
||
if (Tcl_FSConvertToPathType(interp, objv[index]) != TCL_OK) {
|
||
return TCL_ERROR;
|
||
}
|
||
|
||
/*
|
||
* Read link
|
||
*/
|
||
|
||
contents = Tcl_FSLink(objv[index], NULL, 0);
|
||
if (contents == NULL) {
|
||
Tcl_AppendResult(interp, "could not read link \"",
|
||
TclGetString(objv[index]), "\": ",
|
||
Tcl_PosixError(interp), NULL);
|
||
return TCL_ERROR;
|
||
}
|
||
}
|
||
Tcl_SetObjResult(interp, contents);
|
||
if (objc == 3) {
|
||
/*
|
||
* If we are reading a link, we need to free this result refCount.
|
||
* If we are creating a link, this will just be objv[index+1], and
|
||
* so we don't own it.
|
||
*/
|
||
|
||
Tcl_DecrRefCount(contents);
|
||
}
|
||
return TCL_OK;
|
||
}
|
||
case FCMD_LSTAT:
|
||
if (objc != 4) {
|
||
Tcl_WrongNumArgs(interp, 2, objv, "name varName");
|
||
return TCL_ERROR;
|
||
}
|
||
if (GetStatBuf(interp, objv[2], Tcl_FSLstat, &buf) != TCL_OK) {
|
||
return TCL_ERROR;
|
||
}
|
||
return StoreStatData(interp, objv[3], &buf);
|
||
case FCMD_STAT:
|
||
if (objc != 4) {
|
||
Tcl_WrongNumArgs(interp, 2, objv, "name varName");
|
||
return TCL_ERROR;
|
||
}
|
||
if (GetStatBuf(interp, objv[2], Tcl_FSStat, &buf) != TCL_OK) {
|
||
return TCL_ERROR;
|
||
}
|
||
return StoreStatData(interp, objv[3], &buf);
|
||
case FCMD_SIZE:
|
||
if (objc != 3) {
|
||
goto only3Args;
|
||
}
|
||
if (GetStatBuf(interp, objv[2], Tcl_FSStat, &buf) != TCL_OK) {
|
||
return TCL_ERROR;
|
||
}
|
||
Tcl_SetObjResult(interp,
|
||
Tcl_NewWideIntObj((Tcl_WideInt) buf.st_size));
|
||
return TCL_OK;
|
||
case FCMD_TYPE:
|
||
if (objc != 3) {
|
||
goto only3Args;
|
||
}
|
||
if (GetStatBuf(interp, objv[2], Tcl_FSLstat, &buf) != TCL_OK) {
|
||
return TCL_ERROR;
|
||
}
|
||
Tcl_SetObjResult(interp, Tcl_NewStringObj(
|
||
GetTypeFromMode((unsigned short) buf.st_mode), -1));
|
||
return TCL_OK;
|
||
case FCMD_MKDIR:
|
||
if (objc < 3) {
|
||
Tcl_WrongNumArgs(interp, 2, objv, "name ?name ...?");
|
||
return TCL_ERROR;
|
||
}
|
||
return TclFileMakeDirsCmd(interp, objc, objv);
|
||
case FCMD_NATIVENAME: {
|
||
const char *fileName;
|
||
Tcl_DString ds;
|
||
|
||
if (objc != 3) {
|
||
goto only3Args;
|
||
}
|
||
fileName = TclGetString(objv[2]);
|
||
fileName = Tcl_TranslateFileName(interp, fileName, &ds);
|
||
if (fileName == NULL) {
|
||
return TCL_ERROR;
|
||
}
|
||
Tcl_SetObjResult(interp, Tcl_NewStringObj(fileName,
|
||
Tcl_DStringLength(&ds)));
|
||
Tcl_DStringFree(&ds);
|
||
return TCL_OK;
|
||
}
|
||
case FCMD_NORMALIZE: {
|
||
Tcl_Obj *fileName;
|
||
|
||
if (objc != 3) {
|
||
Tcl_WrongNumArgs(interp, 2, objv, "filename");
|
||
return TCL_ERROR;
|
||
}
|
||
|
||
fileName = Tcl_FSGetNormalizedPath(interp, objv[2]);
|
||
if (fileName == NULL) {
|
||
return TCL_ERROR;
|
||
}
|
||
Tcl_SetObjResult(interp, fileName);
|
||
return TCL_OK;
|
||
}
|
||
case FCMD_PATHTYPE: {
|
||
Tcl_Obj *typeName;
|
||
|
||
if (objc != 3) {
|
||
goto only3Args;
|
||
}
|
||
|
||
switch (Tcl_FSGetPathType(objv[2])) {
|
||
case TCL_PATH_ABSOLUTE:
|
||
TclNewLiteralStringObj(typeName, "absolute");
|
||
break;
|
||
case TCL_PATH_RELATIVE:
|
||
TclNewLiteralStringObj(typeName, "relative");
|
||
break;
|
||
case TCL_PATH_VOLUME_RELATIVE:
|
||
TclNewLiteralStringObj(typeName, "volumerelative");
|
||
break;
|
||
default:
|
||
return TCL_OK;
|
||
}
|
||
Tcl_SetObjResult(interp, typeName);
|
||
return TCL_OK;
|
||
}
|
||
case FCMD_READABLE:
|
||
if (objc != 3) {
|
||
goto only3Args;
|
||
}
|
||
return CheckAccess(interp, objv[2], R_OK);
|
||
case FCMD_READLINK: {
|
||
Tcl_Obj *contents;
|
||
|
||
if (objc != 3) {
|
||
goto only3Args;
|
||
}
|
||
|
||
if (Tcl_FSConvertToPathType(interp, objv[2]) != TCL_OK) {
|
||
return TCL_ERROR;
|
||
}
|
||
|
||
contents = Tcl_FSLink(objv[2], NULL, 0);
|
||
|
||
if (contents == NULL) {
|
||
Tcl_AppendResult(interp, "could not readlink \"",
|
||
TclGetString(objv[2]), "\": ", Tcl_PosixError(interp),
|
||
NULL);
|
||
return TCL_ERROR;
|
||
}
|
||
Tcl_SetObjResult(interp, contents);
|
||
Tcl_DecrRefCount(contents);
|
||
return TCL_OK;
|
||
}
|
||
case FCMD_RENAME:
|
||
return TclFileRenameCmd(interp, objc, objv);
|
||
case FCMD_ROOTNAME: {
|
||
Tcl_Obj *root;
|
||
|
||
if (objc != 3) {
|
||
goto only3Args;
|
||
}
|
||
root = TclPathPart(interp, objv[2], TCL_PATH_ROOT);
|
||
if (root != NULL) {
|
||
Tcl_SetObjResult(interp, root);
|
||
Tcl_DecrRefCount(root);
|
||
return TCL_OK;
|
||
} else {
|
||
return TCL_ERROR;
|
||
}
|
||
}
|
||
case FCMD_SEPARATOR:
|
||
if ((objc < 2) || (objc > 3)) {
|
||
Tcl_WrongNumArgs(interp, 2, objv, "?name?");
|
||
return TCL_ERROR;
|
||
}
|
||
if (objc == 2) {
|
||
const char *separator = NULL; /* lint */
|
||
|
||
switch (tclPlatform) {
|
||
case TCL_PLATFORM_UNIX:
|
||
separator = "/";
|
||
break;
|
||
case TCL_PLATFORM_WINDOWS:
|
||
separator = "\\";
|
||
break;
|
||
}
|
||
Tcl_SetObjResult(interp, Tcl_NewStringObj(separator, 1));
|
||
} else {
|
||
Tcl_Obj *separatorObj = Tcl_FSPathSeparator(objv[2]);
|
||
|
||
if (separatorObj == NULL) {
|
||
Tcl_SetResult(interp, "Unrecognised path", TCL_STATIC);
|
||
return TCL_ERROR;
|
||
}
|
||
Tcl_SetObjResult(interp, separatorObj);
|
||
}
|
||
return TCL_OK;
|
||
case FCMD_SPLIT: {
|
||
Tcl_Obj *res;
|
||
|
||
if (objc != 3) {
|
||
goto only3Args;
|
||
}
|
||
res = Tcl_FSSplitPath(objv[2], NULL);
|
||
if (res == NULL) {
|
||
/* How can the interp be NULL here?! DKF */
|
||
if (interp != NULL) {
|
||
Tcl_AppendResult(interp, "could not read \"",
|
||
TclGetString(objv[2]),
|
||
"\": no such file or directory", NULL);
|
||
}
|
||
return TCL_ERROR;
|
||
}
|
||
Tcl_SetObjResult(interp, res);
|
||
return TCL_OK;
|
||
}
|
||
case FCMD_SYSTEM: {
|
||
Tcl_Obj *fsInfo;
|
||
|
||
if (objc != 3) {
|
||
goto only3Args;
|
||
}
|
||
fsInfo = Tcl_FSFileSystemInfo(objv[2]);
|
||
if (fsInfo == NULL) {
|
||
Tcl_SetResult(interp, "Unrecognised path", TCL_STATIC);
|
||
return TCL_ERROR;
|
||
}
|
||
Tcl_SetObjResult(interp, fsInfo);
|
||
return TCL_OK;
|
||
}
|
||
case FCMD_TAIL: {
|
||
Tcl_Obj *dirPtr;
|
||
|
||
if (objc != 3) {
|
||
goto only3Args;
|
||
}
|
||
dirPtr = TclPathPart(interp, objv[2], TCL_PATH_TAIL);
|
||
if (dirPtr == NULL) {
|
||
return TCL_ERROR;
|
||
}
|
||
Tcl_SetObjResult(interp, dirPtr);
|
||
Tcl_DecrRefCount(dirPtr);
|
||
return TCL_OK;
|
||
}
|
||
case FCMD_VOLUMES:
|
||
if (objc != 2) {
|
||
Tcl_WrongNumArgs(interp, 2, objv, NULL);
|
||
return TCL_ERROR;
|
||
}
|
||
Tcl_SetObjResult(interp, Tcl_FSListVolumes());
|
||
return TCL_OK;
|
||
case FCMD_WRITABLE:
|
||
if (objc != 3) {
|
||
goto only3Args;
|
||
}
|
||
return CheckAccess(interp, objv[2], W_OK);
|
||
}
|
||
|
||
only3Args:
|
||
Tcl_WrongNumArgs(interp, 2, objv, "name");
|
||
return TCL_ERROR;
|
||
}
|
||
|
||
/*
|
||
*---------------------------------------------------------------------------
|
||
*
|
||
* CheckAccess --
|
||
*
|
||
* Utility procedure used by Tcl_FileObjCmd() to query file attributes
|
||
* available through the access() system call.
|
||
*
|
||
* Results:
|
||
* Always returns TCL_OK. Sets interp's result to boolean true or false
|
||
* depending on whether the file has the specified attribute.
|
||
*
|
||
* Side effects:
|
||
* None.
|
||
*
|
||
*---------------------------------------------------------------------------
|
||
*/
|
||
|
||
static int
|
||
CheckAccess(
|
||
Tcl_Interp *interp, /* Interp for status return. Must not be
|
||
* NULL. */
|
||
Tcl_Obj *pathPtr, /* Name of file to check. */
|
||
int mode) /* Attribute to check; passed as argument to
|
||
* access(). */
|
||
{
|
||
int value;
|
||
|
||
if (Tcl_FSConvertToPathType(interp, pathPtr) != TCL_OK) {
|
||
value = 0;
|
||
} else {
|
||
value = (Tcl_FSAccess(pathPtr, mode) == 0);
|
||
}
|
||
Tcl_SetObjResult(interp, Tcl_NewBooleanObj(value));
|
||
|
||
return TCL_OK;
|
||
}
|
||
|
||
/*
|
||
*---------------------------------------------------------------------------
|
||
*
|
||
* GetStatBuf --
|
||
*
|
||
* Utility procedure used by Tcl_FileObjCmd() to query file attributes
|
||
* available through the stat() or lstat() system call.
|
||
*
|
||
* Results:
|
||
* The return value is TCL_OK if the specified file exists and can be
|
||
* stat'ed, TCL_ERROR otherwise. If TCL_ERROR is returned, an error
|
||
* message is left in interp's result. If TCL_OK is returned, *statPtr is
|
||
* filled with information about the specified file.
|
||
*
|
||
* Side effects:
|
||
* None.
|
||
*
|
||
*---------------------------------------------------------------------------
|
||
*/
|
||
|
||
static int
|
||
GetStatBuf(
|
||
Tcl_Interp *interp, /* Interp for error return. May be NULL. */
|
||
Tcl_Obj *pathPtr, /* Path name to examine. */
|
||
Tcl_FSStatProc *statProc, /* Either stat() or lstat() depending on
|
||
* desired behavior. */
|
||
Tcl_StatBuf *statPtr) /* Filled with info about file obtained by
|
||
* calling (*statProc)(). */
|
||
{
|
||
int status;
|
||
|
||
if (Tcl_FSConvertToPathType(interp, pathPtr) != TCL_OK) {
|
||
return TCL_ERROR;
|
||
}
|
||
|
||
status = (*statProc)(pathPtr, statPtr);
|
||
|
||
if (status < 0) {
|
||
if (interp != NULL) {
|
||
Tcl_AppendResult(interp, "could not read \"",
|
||
TclGetString(pathPtr), "\": ",
|
||
Tcl_PosixError(interp), NULL);
|
||
}
|
||
return TCL_ERROR;
|
||
}
|
||
return TCL_OK;
|
||
}
|
||
|
||
/*
|
||
*----------------------------------------------------------------------
|
||
*
|
||
* StoreStatData --
|
||
*
|
||
* This is a utility procedure that breaks out the fields of a "stat"
|
||
* structure and stores them in textual form into the elements of an
|
||
* associative array.
|
||
*
|
||
* Results:
|
||
* Returns a standard Tcl return value. If an error occurs then a message
|
||
* is left in interp's result.
|
||
*
|
||
* Side effects:
|
||
* Elements of the associative array given by "varName" are modified.
|
||
*
|
||
*----------------------------------------------------------------------
|
||
*/
|
||
|
||
static int
|
||
StoreStatData(
|
||
Tcl_Interp *interp, /* Interpreter for error reports. */
|
||
Tcl_Obj *varName, /* Name of associative array variable in which
|
||
* to store stat results. */
|
||
Tcl_StatBuf *statPtr) /* Pointer to buffer containing stat data to
|
||
* store in varName. */
|
||
{
|
||
Tcl_Obj *field, *value;
|
||
register unsigned short mode;
|
||
|
||
/*
|
||
* Assume Tcl_ObjSetVar2() does not keep a copy of the field name!
|
||
*
|
||
* Might be a better idea to call Tcl_SetVar2Ex() instead, except we want
|
||
* to have an object (i.e. possibly cached) array variable name but a
|
||
* string element name, so no API exists. Messy.
|
||
*/
|
||
|
||
#define STORE_ARY(fieldName, object) \
|
||
TclNewLiteralStringObj(field, fieldName); \
|
||
Tcl_IncrRefCount(field); \
|
||
value = (object); \
|
||
if (Tcl_ObjSetVar2(interp,varName,field,value,TCL_LEAVE_ERR_MSG)==NULL) { \
|
||
TclDecrRefCount(field); \
|
||
return TCL_ERROR; \
|
||
} \
|
||
TclDecrRefCount(field);
|
||
|
||
/*
|
||
* Watch out porters; the inode is meant to be an *unsigned* value, so the
|
||
* cast might fail when there isn't a real arithmentic 'long long' type...
|
||
*/
|
||
|
||
STORE_ARY("dev", Tcl_NewLongObj((long)statPtr->st_dev));
|
||
STORE_ARY("ino", Tcl_NewWideIntObj((Tcl_WideInt)statPtr->st_ino));
|
||
STORE_ARY("nlink", Tcl_NewLongObj((long)statPtr->st_nlink));
|
||
STORE_ARY("uid", Tcl_NewLongObj((long)statPtr->st_uid));
|
||
STORE_ARY("gid", Tcl_NewLongObj((long)statPtr->st_gid));
|
||
STORE_ARY("size", Tcl_NewWideIntObj((Tcl_WideInt)statPtr->st_size));
|
||
#ifdef HAVE_STRUCT_STAT_ST_BLOCKS
|
||
STORE_ARY("blocks", Tcl_NewWideIntObj((Tcl_WideInt)statPtr->st_blocks));
|
||
#endif
|
||
#ifdef HAVE_STRUCT_STAT_ST_BLKSIZE
|
||
STORE_ARY("blksize", Tcl_NewLongObj((long)statPtr->st_blksize));
|
||
#endif
|
||
STORE_ARY("atime", Tcl_NewLongObj((long)statPtr->st_atime));
|
||
STORE_ARY("mtime", Tcl_NewLongObj((long)statPtr->st_mtime));
|
||
STORE_ARY("ctime", Tcl_NewLongObj((long)statPtr->st_ctime));
|
||
mode = (unsigned short) statPtr->st_mode;
|
||
STORE_ARY("mode", Tcl_NewIntObj(mode));
|
||
STORE_ARY("type", Tcl_NewStringObj(GetTypeFromMode(mode), -1));
|
||
#undef STORE_ARY
|
||
|
||
return TCL_OK;
|
||
}
|
||
|
||
/*
|
||
*----------------------------------------------------------------------
|
||
*
|
||
* GetTypeFromMode --
|
||
*
|
||
* Given a mode word, returns a string identifying the type of a file.
|
||
*
|
||
* Results:
|
||
* A static text string giving the file type from mode.
|
||
*
|
||
* Side effects:
|
||
* None.
|
||
*
|
||
*----------------------------------------------------------------------
|
||
*/
|
||
|
||
static const char *
|
||
GetTypeFromMode(
|
||
int mode)
|
||
{
|
||
if (S_ISREG(mode)) {
|
||
return "file";
|
||
} else if (S_ISDIR(mode)) {
|
||
return "directory";
|
||
} else if (S_ISCHR(mode)) {
|
||
return "characterSpecial";
|
||
} else if (S_ISBLK(mode)) {
|
||
return "blockSpecial";
|
||
} else if (S_ISFIFO(mode)) {
|
||
return "fifo";
|
||
#ifdef S_ISLNK
|
||
} else if (S_ISLNK(mode)) {
|
||
return "link";
|
||
#endif
|
||
#ifdef S_ISSOCK
|
||
} else if (S_ISSOCK(mode)) {
|
||
return "socket";
|
||
#endif
|
||
}
|
||
return "unknown";
|
||
}
|
||
|
||
/*
|
||
*----------------------------------------------------------------------
|
||
*
|
||
* Tcl_ForObjCmd --
|
||
*
|
||
* This procedure is invoked to process the "for" Tcl command. See the
|
||
* user documentation for details on what it does.
|
||
*
|
||
* With the bytecode compiler, this procedure is only called when a
|
||
* command name is computed at runtime, and is "for" or the name to which
|
||
* "for" was renamed: e.g.,
|
||
* "set z for; $z {set i 0} {$i<100} {incr i} {puts $i}"
|
||
*
|
||
* Results:
|
||
* A standard Tcl result.
|
||
*
|
||
* Side effects:
|
||
* See the user documentation.
|
||
*
|
||
*----------------------------------------------------------------------
|
||
*/
|
||
|
||
/* ARGSUSED */
|
||
int
|
||
Tcl_ForObjCmd(
|
||
ClientData dummy, /* Not used. */
|
||
Tcl_Interp *interp, /* Current interpreter. */
|
||
int objc, /* Number of arguments. */
|
||
Tcl_Obj *const objv[]) /* Argument objects. */
|
||
{
|
||
int result, value;
|
||
Interp *iPtr = (Interp *) interp;
|
||
|
||
if (objc != 5) {
|
||
Tcl_WrongNumArgs(interp, 1, objv, "start test next command");
|
||
return TCL_ERROR;
|
||
}
|
||
|
||
/*
|
||
* TIP #280. Make invoking context available to initial script.
|
||
*/
|
||
|
||
result = TclEvalObjEx(interp, objv[1], 0, iPtr->cmdFramePtr, 1);
|
||
if (result != TCL_OK) {
|
||
if (result == TCL_ERROR) {
|
||
Tcl_AddErrorInfo(interp, "\n (\"for\" initial command)");
|
||
}
|
||
return result;
|
||
}
|
||
while (1) {
|
||
/*
|
||
* We need to reset the result before passing it off to
|
||
* Tcl_ExprBooleanObj. Otherwise, any error message will be appended
|
||
* to the result of the last evaluation.
|
||
*/
|
||
|
||
Tcl_ResetResult(interp);
|
||
result = Tcl_ExprBooleanObj(interp, objv[2], &value);
|
||
if (result != TCL_OK) {
|
||
return result;
|
||
}
|
||
if (!value) {
|
||
break;
|
||
}
|
||
|
||
/*
|
||
* TIP #280. Make invoking context available to loop body.
|
||
*/
|
||
|
||
result = TclEvalObjEx(interp, objv[4], 0, iPtr->cmdFramePtr, 4);
|
||
if ((result != TCL_OK) && (result != TCL_CONTINUE)) {
|
||
if (result == TCL_ERROR) {
|
||
Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf(
|
||
"\n (\"for\" body line %d)", interp->errorLine));
|
||
}
|
||
break;
|
||
}
|
||
|
||
/*
|
||
* TIP #280. Make invoking context available to next script.
|
||
*/
|
||
|
||
result = TclEvalObjEx(interp, objv[3], 0, iPtr->cmdFramePtr, 3);
|
||
if (result == TCL_BREAK) {
|
||
break;
|
||
} else if (result != TCL_OK) {
|
||
if (result == TCL_ERROR) {
|
||
Tcl_AddErrorInfo(interp, "\n (\"for\" loop-end command)");
|
||
}
|
||
return result;
|
||
}
|
||
}
|
||
if (result == TCL_BREAK) {
|
||
result = TCL_OK;
|
||
}
|
||
if (result == TCL_OK) {
|
||
Tcl_ResetResult(interp);
|
||
}
|
||
return result;
|
||
}
|
||
|
||
/*
|
||
*----------------------------------------------------------------------
|
||
*
|
||
* Tcl_ForeachObjCmd --
|
||
*
|
||
* This object-based procedure is invoked to process the "foreach" Tcl
|
||
* command. See the user documentation for details on what it does.
|
||
*
|
||
* Results:
|
||
* A standard Tcl object result.
|
||
*
|
||
* Side effects:
|
||
* See the user documentation.
|
||
*
|
||
*----------------------------------------------------------------------
|
||
*/
|
||
|
||
/* ARGSUSED */
|
||
int
|
||
Tcl_ForeachObjCmd(
|
||
ClientData dummy, /* Not used. */
|
||
Tcl_Interp *interp, /* Current interpreter. */
|
||
int objc, /* Number of arguments. */
|
||
Tcl_Obj *const objv[]) /* Argument objects. */
|
||
{
|
||
int result = TCL_OK;
|
||
int i; /* i selects a value list */
|
||
int j, maxj; /* Number of loop iterations */
|
||
int v; /* v selects a loop variable */
|
||
int numLists = (objc-2)/2; /* Count of value lists */
|
||
Tcl_Obj *bodyPtr;
|
||
Interp *iPtr = (Interp *) interp;
|
||
|
||
int *index; /* Array of value list indices */
|
||
int *varcList; /* # loop variables per list */
|
||
Tcl_Obj ***varvList; /* Array of var name lists */
|
||
Tcl_Obj **vCopyList; /* Copies of var name list arguments */
|
||
int *argcList; /* Array of value list sizes */
|
||
Tcl_Obj ***argvList; /* Array of value lists */
|
||
Tcl_Obj **aCopyList; /* Copies of value list arguments */
|
||
|
||
if (objc < 4 || (objc%2 != 0)) {
|
||
Tcl_WrongNumArgs(interp, 1, objv,
|
||
"varList list ?varList list ...? command");
|
||
return TCL_ERROR;
|
||
}
|
||
|
||
/*
|
||
* Manage numList parallel value lists.
|
||
* argvList[i] is a value list counted by argcList[i]l;
|
||
* varvList[i] is the list of variables associated with the value list;
|
||
* varcList[i] is the number of variables associated with the value list;
|
||
* index[i] is the current pointer into the value list argvList[i].
|
||
*/
|
||
|
||
index = (int *) TclStackAlloc(interp, 3 * numLists * sizeof(int));
|
||
varcList = index + numLists;
|
||
argcList = varcList + numLists;
|
||
memset(index, 0, 3 * numLists * sizeof(int));
|
||
|
||
varvList = (Tcl_Obj ***)
|
||
TclStackAlloc(interp, 2 * numLists * sizeof(Tcl_Obj **));
|
||
argvList = varvList + numLists;
|
||
memset(varvList, 0, 2 * numLists * sizeof(Tcl_Obj **));
|
||
|
||
vCopyList = (Tcl_Obj **)
|
||
TclStackAlloc(interp, 2 * numLists * sizeof(Tcl_Obj *));
|
||
aCopyList = vCopyList + numLists;
|
||
memset(vCopyList, 0, 2 * numLists * sizeof(Tcl_Obj *));
|
||
|
||
/*
|
||
* Break up the value lists and variable lists into elements.
|
||
*/
|
||
|
||
maxj = 0;
|
||
for (i=0 ; i<numLists ; i++) {
|
||
|
||
vCopyList[i] = TclListObjCopy(interp, objv[1+i*2]);
|
||
if (vCopyList[i] == NULL) {
|
||
result = TCL_ERROR;
|
||
goto done;
|
||
}
|
||
TclListObjGetElements(NULL, vCopyList[i], &varcList[i], &varvList[i]);
|
||
if (varcList[i] < 1) {
|
||
Tcl_AppendResult(interp, "foreach varlist is empty", NULL);
|
||
result = TCL_ERROR;
|
||
goto done;
|
||
}
|
||
|
||
aCopyList[i] = TclListObjCopy(interp, objv[2+i*2]);
|
||
if (aCopyList[i] == NULL) {
|
||
result = TCL_ERROR;
|
||
goto done;
|
||
}
|
||
TclListObjGetElements(NULL, aCopyList[i], &argcList[i], &argvList[i]);
|
||
|
||
j = argcList[i] / varcList[i];
|
||
if ((argcList[i] % varcList[i]) != 0) {
|
||
j++;
|
||
}
|
||
if (j > maxj) {
|
||
maxj = j;
|
||
}
|
||
}
|
||
|
||
/*
|
||
* Iterate maxj times through the lists in parallel. If some value lists
|
||
* run out of values, set loop vars to ""
|
||
*/
|
||
|
||
bodyPtr = objv[objc-1];
|
||
for (j=0 ; j<maxj ; j++) {
|
||
for (i=0 ; i<numLists ; i++) {
|
||
for (v=0 ; v<varcList[i] ; v++) {
|
||
int k = index[i]++;
|
||
Tcl_Obj *valuePtr, *varValuePtr;
|
||
|
||
if (k < argcList[i]) {
|
||
valuePtr = argvList[i][k];
|
||
} else {
|
||
valuePtr = Tcl_NewObj(); /* Empty string */
|
||
}
|
||
varValuePtr = Tcl_ObjSetVar2(interp, varvList[i][v], NULL,
|
||
valuePtr, TCL_LEAVE_ERR_MSG);
|
||
if (varValuePtr == NULL) {
|
||
Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf(
|
||
"\n (setting foreach loop variable \"%s\")",
|
||
TclGetString(varvList[i][v])));
|
||
result = TCL_ERROR;
|
||
goto done;
|
||
}
|
||
}
|
||
}
|
||
|
||
/*
|
||
* TIP #280. Make invoking context available to loop body.
|
||
*/
|
||
|
||
result = TclEvalObjEx(interp, bodyPtr, 0, iPtr->cmdFramePtr, objc-1);
|
||
if (result != TCL_OK) {
|
||
if (result == TCL_CONTINUE) {
|
||
result = TCL_OK;
|
||
} else if (result == TCL_BREAK) {
|
||
result = TCL_OK;
|
||
break;
|
||
} else if (result == TCL_ERROR) {
|
||
Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf(
|
||
"\n (\"foreach\" body line %d)",
|
||
interp->errorLine));
|
||
break;
|
||
} else {
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
if (result == TCL_OK) {
|
||
Tcl_ResetResult(interp);
|
||
}
|
||
|
||
done:
|
||
for (i=0 ; i<numLists ; i++) {
|
||
if (vCopyList[i]) {
|
||
Tcl_DecrRefCount(vCopyList[i]);
|
||
}
|
||
if (aCopyList[i]) {
|
||
Tcl_DecrRefCount(aCopyList[i]);
|
||
}
|
||
}
|
||
TclStackFree(interp, vCopyList); /* Tcl_Obj * arrays */
|
||
TclStackFree(interp, varvList); /* Tcl_Obj ** arrays */
|
||
TclStackFree(interp, index); /* int arrays */
|
||
return result;
|
||
}
|
||
|
||
/*
|
||
*----------------------------------------------------------------------
|
||
*
|
||
* Tcl_FormatObjCmd --
|
||
*
|
||
* This procedure is invoked to process the "format" Tcl command. See
|
||
* the user documentation for details on what it does.
|
||
*
|
||
* Results:
|
||
* A standard Tcl result.
|
||
*
|
||
* Side effects:
|
||
* See the user documentation.
|
||
*
|
||
*----------------------------------------------------------------------
|
||
*/
|
||
|
||
/* ARGSUSED */
|
||
int
|
||
Tcl_FormatObjCmd(
|
||
ClientData dummy, /* Not used. */
|
||
Tcl_Interp *interp, /* Current interpreter. */
|
||
int objc, /* Number of arguments. */
|
||
Tcl_Obj *const objv[]) /* Argument objects. */
|
||
{
|
||
Tcl_Obj *resultPtr; /* Where result is stored finally. */
|
||
|
||
if (objc < 2) {
|
||
Tcl_WrongNumArgs(interp, 1, objv, "formatString ?arg arg ...?");
|
||
return TCL_ERROR;
|
||
}
|
||
|
||
resultPtr = Tcl_Format(interp, TclGetString(objv[1]), objc-2, objv+2);
|
||
if (resultPtr == NULL) {
|
||
return TCL_ERROR;
|
||
}
|
||
Tcl_SetObjResult(interp, resultPtr);
|
||
return TCL_OK;
|
||
}
|
||
|
||
/*
|
||
* Local Variables:
|
||
* mode: c
|
||
* c-basic-offset: 4
|
||
* fill-column: 78
|
||
* End:
|
||
*/
|