1910 lines
49 KiB
C
1910 lines
49 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.
|
||
*
|
||
* SCCS: @(#) tclCmdAH.c 1.146 97/06/26 13:45:20
|
||
*/
|
||
|
||
#include "tclInt.h"
|
||
#include "tclPort.h"
|
||
|
||
/*
|
||
* Prototypes for local procedures defined in this file:
|
||
*/
|
||
|
||
static char * GetTypeFromMode _ANSI_ARGS_((int mode));
|
||
static int StoreStatData _ANSI_ARGS_((Tcl_Interp *interp,
|
||
char *varName, struct stat *statPtr));
|
||
|
||
/*
|
||
*----------------------------------------------------------------------
|
||
*
|
||
* Tcl_BreakCmd --
|
||
*
|
||
* 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_BreakCmd(dummy, interp, argc, argv)
|
||
ClientData dummy; /* Not used. */
|
||
Tcl_Interp *interp; /* Current interpreter. */
|
||
int argc; /* Number of arguments. */
|
||
char **argv; /* Argument strings. */
|
||
{
|
||
if (argc != 1) {
|
||
Tcl_AppendResult(interp, "wrong # args: should be \"",
|
||
argv[0], "\"", (char *) 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.
|
||
*
|
||
* Results:
|
||
* A standard Tcl object result.
|
||
*
|
||
* Side effects:
|
||
* See the user documentation.
|
||
*
|
||
*----------------------------------------------------------------------
|
||
*/
|
||
|
||
/* ARGSUSED */
|
||
int
|
||
Tcl_CaseObjCmd(dummy, interp, objc, objv)
|
||
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;
|
||
char *string, *arg;
|
||
int argLen, caseObjc;
|
||
Tcl_Obj *CONST *caseObjv;
|
||
|
||
if (objc < 3) {
|
||
Tcl_WrongNumArgs(interp, 1, objv,
|
||
"string ?in? patList body ... ?default body?");
|
||
return TCL_ERROR;
|
||
}
|
||
|
||
/*
|
||
* THIS FAILS IF AN OBJECT'S STRING REP HAS A NULL BYTE.
|
||
*/
|
||
|
||
string = Tcl_GetStringFromObj(objv[1], &argLen);
|
||
body = -1;
|
||
|
||
arg = Tcl_GetStringFromObj(objv[2], &argLen);
|
||
if (strcmp(arg, "in") == 0) {
|
||
i = 3;
|
||
} else {
|
||
i = 2;
|
||
}
|
||
caseObjc = objc - i;
|
||
caseObjv = objv + i;
|
||
|
||
/*
|
||
* If all of the pattern/command pairs are lumped into a single
|
||
* argument, split them out again.
|
||
* THIS FAILS IF THE ARG'S STRING REP CONTAINS A NULL
|
||
*/
|
||
|
||
if (caseObjc == 1) {
|
||
Tcl_Obj **newObjv;
|
||
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Tcl_ListObjGetElements(interp, caseObjv[0], &caseObjc, &newObjv);
|
||
caseObjv = newObjv;
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||
}
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||
|
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for (i = 0; i < caseObjc; i += 2) {
|
||
int patObjc, j;
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char **patObjv;
|
||
char *pat;
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||
register char *p;
|
||
|
||
if (i == (caseObjc-1)) {
|
||
Tcl_ResetResult(interp);
|
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Tcl_AppendToObj(Tcl_GetObjResult(interp),
|
||
"extra case pattern with no body", -1);
|
||
return TCL_ERROR;
|
||
}
|
||
|
||
/*
|
||
* Check for special case of single pattern (no list) with
|
||
* no backslash sequences.
|
||
*/
|
||
|
||
pat = Tcl_GetStringFromObj(caseObjv[i], &argLen);
|
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for (p = pat; *p != 0; p++) { /* FAILS IF NULL BYTE */
|
||
if (isspace(UCHAR(*p)) || (*p == '\\')) {
|
||
break;
|
||
}
|
||
}
|
||
if (*p == 0) {
|
||
if ((*pat == 'd') && (strcmp(pat, "default") == 0)) {
|
||
body = i+1;
|
||
}
|
||
if (Tcl_StringMatch(string, pat)) {
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body = i+1;
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||
goto match;
|
||
}
|
||
continue;
|
||
}
|
||
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||
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/*
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* Break up pattern lists, then check each of the patterns
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* in the list.
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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;
|
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}
|
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for (j = 0; j < patObjc; j++) {
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if (Tcl_StringMatch(string, patObjv[j])) {
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body = i+1;
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break;
|
||
}
|
||
}
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ckfree((char *) patObjv);
|
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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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result = Tcl_EvalObj(interp, caseObjv[body]);
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if (result == TCL_ERROR) {
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char msg[100];
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||
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arg = Tcl_GetStringFromObj(caseObjv[body-1], &argLen);
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sprintf(msg, "\n (\"%.*s\" arm line %d)", argLen, arg,
|
||
interp->errorLine);
|
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Tcl_AddObjErrorInfo(interp, msg, -1);
|
||
}
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return result;
|
||
}
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||
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/*
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* Nothing matched: return nothing.
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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
|
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* 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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*----------------------------------------------------------------------
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||
*/
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/* ARGSUSED */
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int
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||
Tcl_CatchObjCmd(dummy, interp, objc, objv)
|
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ClientData dummy; /* Not used. */
|
||
Tcl_Interp *interp; /* Current interpreter. */
|
||
int objc; /* Number of arguments. */
|
||
Tcl_Obj *CONST objv[]; /* Argument objects. */
|
||
{
|
||
int result;
|
||
|
||
if ((objc != 2) && (objc != 3)) {
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Tcl_WrongNumArgs(interp, 1, objv, "command ?varName?");
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return TCL_ERROR;
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}
|
||
|
||
/*
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||
* Save a pointer to the variable name object, if any, in case the
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* Tcl_EvalObj reallocates the bytecode interpreter's evaluation
|
||
* stack rendering objv invalid.
|
||
*/
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||
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result = Tcl_EvalObj(interp, objv[1]);
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if (objc == 3) {
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||
if (Tcl_ObjSetVar2(interp, objv[2], NULL, Tcl_GetObjResult(interp),
|
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TCL_PARSE_PART1) == NULL) {
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||
Tcl_ResetResult(interp);
|
||
Tcl_AppendToObj(Tcl_GetObjResult(interp),
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"couldn't save command result in variable", -1);
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return TCL_ERROR;
|
||
}
|
||
}
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||
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/*
|
||
* Set the interpreter's object result to an integer object holding the
|
||
* integer Tcl_EvalObj result. Note that we don't bother generating a
|
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* string representation. We reset the interpreter's object result
|
||
* to an unshared empty object and then set it to be an integer object.
|
||
*/
|
||
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||
Tcl_ResetResult(interp);
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||
Tcl_SetIntObj(Tcl_GetObjResult(interp), result);
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||
return TCL_OK;
|
||
}
|
||
|
||
/*
|
||
*----------------------------------------------------------------------
|
||
*
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||
* Tcl_CdCmd --
|
||
*
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||
* 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_CdCmd(dummy, interp, argc, argv)
|
||
ClientData dummy; /* Not used. */
|
||
Tcl_Interp *interp; /* Current interpreter. */
|
||
int argc; /* Number of arguments. */
|
||
char **argv; /* Argument strings. */
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||
{
|
||
char *dirName;
|
||
Tcl_DString buffer;
|
||
int result;
|
||
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||
if (argc > 2) {
|
||
Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
|
||
" dirName\"", (char *) NULL);
|
||
return TCL_ERROR;
|
||
}
|
||
|
||
if (argc == 2) {
|
||
dirName = argv[1];
|
||
} else {
|
||
dirName = "~";
|
||
}
|
||
dirName = Tcl_TranslateFileName(interp, dirName, &buffer);
|
||
if (dirName == NULL) {
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||
return TCL_ERROR;
|
||
}
|
||
result = TclChdir(interp, dirName);
|
||
Tcl_DStringFree(&buffer);
|
||
return result;
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||
}
|
||
|
||
/*
|
||
*----------------------------------------------------------------------
|
||
*
|
||
* 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(dummy, interp, objc, objv)
|
||
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_ContinueCmd -
|
||
*
|
||
* 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_ContinueCmd(dummy, interp, argc, argv)
|
||
ClientData dummy; /* Not used. */
|
||
Tcl_Interp *interp; /* Current interpreter. */
|
||
int argc; /* Number of arguments. */
|
||
char **argv; /* Argument strings. */
|
||
{
|
||
if (argc != 1) {
|
||
Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
|
||
"\"", (char *) NULL);
|
||
return TCL_ERROR;
|
||
}
|
||
return TCL_CONTINUE;
|
||
}
|
||
|
||
/*
|
||
*----------------------------------------------------------------------
|
||
*
|
||
* 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(dummy, interp, objc, objv)
|
||
ClientData dummy; /* Not used. */
|
||
Tcl_Interp *interp; /* Current interpreter. */
|
||
int objc; /* Number of arguments. */
|
||
Tcl_Obj *CONST objv[]; /* Argument objects. */
|
||
{
|
||
Interp *iPtr = (Interp *) interp;
|
||
register Tcl_Obj *namePtr;
|
||
char *info;
|
||
int infoLen;
|
||
|
||
if ((objc < 2) || (objc > 4)) {
|
||
Tcl_WrongNumArgs(interp, 1, objv, "message ?errorInfo? ?errorCode?");
|
||
return TCL_ERROR;
|
||
}
|
||
|
||
if (objc >= 3) { /* process the optional info argument */
|
||
info = Tcl_GetStringFromObj(objv[2], &infoLen);
|
||
if (*info != 0) {
|
||
Tcl_AddObjErrorInfo(interp, info, infoLen);
|
||
iPtr->flags |= ERR_ALREADY_LOGGED;
|
||
}
|
||
}
|
||
|
||
if (objc == 4) {
|
||
namePtr = Tcl_NewStringObj("errorCode", -1);
|
||
Tcl_ObjSetVar2(interp, namePtr, (Tcl_Obj *) NULL, objv[3],
|
||
TCL_GLOBAL_ONLY);
|
||
iPtr->flags |= ERROR_CODE_SET;
|
||
Tcl_DecrRefCount(namePtr); /* we're done with name object */
|
||
}
|
||
|
||
Tcl_SetObjResult(interp, objv[1]);
|
||
return TCL_ERROR;
|
||
}
|
||
|
||
/*
|
||
*----------------------------------------------------------------------
|
||
*
|
||
* 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(dummy, interp, objc, objv)
|
||
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;
|
||
|
||
if (objc < 2) {
|
||
Tcl_WrongNumArgs(interp, 1, objv, "arg ?arg ...?");
|
||
return TCL_ERROR;
|
||
}
|
||
|
||
if (objc == 2) {
|
||
result = Tcl_EvalObj(interp, objv[1]);
|
||
} else {
|
||
/*
|
||
* More than one argument: concatenate them together with spaces
|
||
* between, then evaluate the result.
|
||
*/
|
||
|
||
objPtr = Tcl_ConcatObj(objc-1, objv+1);
|
||
result = Tcl_EvalObj(interp, objPtr);
|
||
TclDecrRefCount(objPtr); /* we're done with the object */
|
||
}
|
||
if (result == TCL_ERROR) {
|
||
char msg[60];
|
||
sprintf(msg, "\n (\"eval\" body line %d)", interp->errorLine);
|
||
Tcl_AddObjErrorInfo(interp, msg, -1);
|
||
}
|
||
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(dummy, interp, objc, objv)
|
||
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(dummy, interp, objc, objv)
|
||
ClientData dummy; /* Not used. */
|
||
Tcl_Interp *interp; /* Current interpreter. */
|
||
int objc; /* Number of arguments. */
|
||
Tcl_Obj *CONST objv[]; /* Argument objects. */
|
||
{
|
||
register Tcl_Obj *objPtr;
|
||
Tcl_Obj *resultPtr;
|
||
register char *bytes;
|
||
int length, i, result;
|
||
|
||
if (objc < 2) {
|
||
Tcl_WrongNumArgs(interp, 1, objv, "arg ?arg ...?");
|
||
return TCL_ERROR;
|
||
}
|
||
|
||
if (objc == 2) {
|
||
result = Tcl_ExprObj(interp, objv[1], &resultPtr);
|
||
if (result == TCL_OK) {
|
||
Tcl_SetObjResult(interp, resultPtr);
|
||
Tcl_DecrRefCount(resultPtr); /* done with the result object */
|
||
}
|
||
}
|
||
|
||
/*
|
||
* Create a new object holding the concatenated argument strings.
|
||
* THIS FAILS IF AN OBJECT'S STRING REP HAS A NULL BYTE.
|
||
*/
|
||
|
||
bytes = Tcl_GetStringFromObj(objv[1], &length);
|
||
objPtr = Tcl_NewStringObj(bytes, length);
|
||
Tcl_IncrRefCount(objPtr);
|
||
for (i = 2; i < objc; i++) {
|
||
Tcl_AppendToObj(objPtr, " ", 1);
|
||
bytes = Tcl_GetStringFromObj(objv[i], &length);
|
||
Tcl_AppendToObj(objPtr, bytes, length);
|
||
}
|
||
|
||
/*
|
||
* Evaluate the concatenated string object.
|
||
*/
|
||
|
||
result = Tcl_ExprObj(interp, objPtr, &resultPtr);
|
||
if (result == TCL_OK) {
|
||
Tcl_SetObjResult(interp, resultPtr);
|
||
Tcl_DecrRefCount(resultPtr); /* done with the result object */
|
||
}
|
||
|
||
/*
|
||
* Free allocated resources.
|
||
*/
|
||
|
||
TclDecrRefCount(objPtr);
|
||
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, WHICH COULD THEORETICALLY HAPPEN ON A MAC.
|
||
*
|
||
* Results:
|
||
* A standard Tcl result.
|
||
*
|
||
* Side effects:
|
||
* See the user documentation.
|
||
*
|
||
*----------------------------------------------------------------------
|
||
*/
|
||
|
||
/* ARGSUSED */
|
||
int
|
||
Tcl_FileObjCmd(dummy, interp, objc, objv)
|
||
ClientData dummy; /* Not used. */
|
||
Tcl_Interp *interp; /* Current interpreter. */
|
||
int objc; /* Number of arguments. */
|
||
Tcl_Obj *CONST objv[]; /* Argument objects. */
|
||
{
|
||
char *fileName, *extension, *errorString;
|
||
int statOp = 0; /* Init. to avoid compiler warning. */
|
||
int length;
|
||
int mode = 0; /* Initialized only to prevent
|
||
* compiler warning message. */
|
||
struct stat statBuf;
|
||
Tcl_DString buffer;
|
||
Tcl_Obj *resultPtr;
|
||
int index, result;
|
||
|
||
/*
|
||
* This list of constants should match the fileOption string array below.
|
||
*/
|
||
|
||
enum {FILE_ATIME, FILE_ATTRIBUTES, FILE_COPY, FILE_DELETE, FILE_DIRNAME,
|
||
FILE_EXECUTABLE, FILE_EXISTS, FILE_EXTENSION, FILE_ISDIRECTORY,
|
||
FILE_ISFILE, FILE_JOIN, FILE_LSTAT, FILE_MTIME, FILE_MKDIR,
|
||
FILE_NATIVENAME, FILE_OWNED, FILE_PATHTYPE, FILE_READABLE,
|
||
FILE_READLINK, FILE_RENAME, FILE_ROOTNAME, FILE_SIZE, FILE_SPLIT,
|
||
FILE_STAT, FILE_TAIL, FILE_TYPE, FILE_VOLUMES, FILE_WRITABLE};
|
||
|
||
|
||
static char *fileOptions[] = {"atime", "attributes", "copy", "delete",
|
||
"dirname", "executable", "exists", "extension", "isdirectory",
|
||
"isfile", "join", "lstat", "mtime", "mkdir", "nativename",
|
||
"owned", "pathtype", "readable", "readlink", "rename",
|
||
"rootname", "size", "split", "stat", "tail", "type", "volumes",
|
||
"writable", (char *) NULL};
|
||
|
||
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;
|
||
}
|
||
|
||
result = TCL_OK;
|
||
/*
|
||
* First, do the volumes command, since it is the only one that
|
||
* has objc == 2.
|
||
*/
|
||
|
||
if ( index == FILE_VOLUMES) {
|
||
if ( objc != 2 ) {
|
||
Tcl_WrongNumArgs(interp, 1, objv, "volumes");
|
||
return TCL_ERROR;
|
||
}
|
||
result = TclpListVolumes(interp);
|
||
return result;
|
||
}
|
||
|
||
if (objc < 3) {
|
||
Tcl_WrongNumArgs(interp, 2, objv, "name ?arg ...?");
|
||
return TCL_ERROR;
|
||
}
|
||
|
||
Tcl_DStringInit(&buffer);
|
||
resultPtr = Tcl_GetObjResult(interp);
|
||
|
||
|
||
/*
|
||
* Handle operations on the file name.
|
||
*/
|
||
|
||
switch (index) {
|
||
case FILE_ATTRIBUTES:
|
||
result = TclFileAttrsCmd(interp, objc - 2, objv + 2);
|
||
goto done;
|
||
case FILE_DIRNAME: {
|
||
int pargc;
|
||
char **pargv;
|
||
|
||
if (objc != 3) {
|
||
errorString = "dirname name";
|
||
goto not3Args;
|
||
}
|
||
|
||
fileName = Tcl_GetStringFromObj(objv[2], &length);
|
||
|
||
/*
|
||
* If there is only one element, and it starts with a tilde,
|
||
* perform tilde substitution and resplit the path.
|
||
*/
|
||
|
||
Tcl_SplitPath(fileName, &pargc, &pargv);
|
||
if ((pargc == 1) && (*fileName == '~')) {
|
||
ckfree((char*) pargv);
|
||
fileName = Tcl_TranslateFileName(interp, fileName, &buffer);
|
||
if (fileName == NULL) {
|
||
result = TCL_ERROR;
|
||
goto done;
|
||
}
|
||
Tcl_SplitPath(fileName, &pargc, &pargv);
|
||
Tcl_DStringSetLength(&buffer, 0);
|
||
}
|
||
|
||
/*
|
||
* Return all but the last component. If there is only one
|
||
* component, return it if the path was non-relative, otherwise
|
||
* return the current directory.
|
||
*/
|
||
|
||
if (pargc > 1) {
|
||
Tcl_JoinPath(pargc-1, pargv, &buffer);
|
||
Tcl_SetStringObj(resultPtr, Tcl_DStringValue(&buffer),
|
||
buffer.length);
|
||
} else if ((pargc == 0)
|
||
|| (Tcl_GetPathType(pargv[0]) == TCL_PATH_RELATIVE)) {
|
||
Tcl_SetStringObj(resultPtr, (tclPlatform == TCL_PLATFORM_MAC)
|
||
? ":" : ".", 1);
|
||
} else {
|
||
Tcl_SetStringObj(resultPtr, pargv[0], -1); }
|
||
ckfree((char *)pargv);
|
||
goto done;
|
||
}
|
||
case FILE_TAIL: {
|
||
int pargc;
|
||
char **pargv;
|
||
|
||
if (objc != 3) {
|
||
errorString = "tail name";
|
||
goto not3Args;
|
||
}
|
||
|
||
fileName = Tcl_GetStringFromObj(objv[2], &length);
|
||
|
||
/*
|
||
* If there is only one element, and it starts with a tilde,
|
||
* perform tilde substitution and resplit the path.
|
||
*/
|
||
|
||
Tcl_SplitPath(fileName, &pargc, &pargv);
|
||
if ((pargc == 1) && (*fileName == '~')) {
|
||
ckfree((char*) pargv);
|
||
fileName = Tcl_TranslateFileName(interp, fileName, &buffer);
|
||
if (fileName == NULL) {
|
||
result = TCL_ERROR;
|
||
goto done;
|
||
}
|
||
Tcl_SplitPath(fileName, &pargc, &pargv);
|
||
Tcl_DStringSetLength(&buffer, 0);
|
||
}
|
||
|
||
/*
|
||
* Return the last component, unless it is the only component, and it
|
||
* is the root of an absolute path.
|
||
*/
|
||
|
||
if (pargc > 0) {
|
||
if ((pargc > 1)
|
||
|| (Tcl_GetPathType(pargv[0]) == TCL_PATH_RELATIVE)) {
|
||
Tcl_SetStringObj(resultPtr, pargv[pargc - 1], -1);
|
||
}
|
||
}
|
||
ckfree((char *)pargv);
|
||
goto done;
|
||
}
|
||
case FILE_ROOTNAME: {
|
||
char *fileName;
|
||
|
||
if (objc != 3) {
|
||
errorString = "rootname name";
|
||
goto not3Args;
|
||
}
|
||
|
||
fileName = Tcl_GetStringFromObj(objv[2], &length);
|
||
extension = TclGetExtension(fileName);
|
||
if (extension == NULL) {
|
||
Tcl_SetObjResult(interp, objv[2]);
|
||
} else {
|
||
Tcl_SetStringObj(resultPtr, fileName,
|
||
(int) (length - strlen(extension)));
|
||
}
|
||
goto done;
|
||
}
|
||
case FILE_EXTENSION:
|
||
if (objc != 3) {
|
||
errorString = "extension name";
|
||
goto not3Args;
|
||
}
|
||
extension = TclGetExtension(Tcl_GetStringFromObj(objv[2], &length));
|
||
|
||
if (extension != NULL) {
|
||
Tcl_SetStringObj(resultPtr, extension, (int) strlen(extension));
|
||
}
|
||
goto done;
|
||
case FILE_PATHTYPE:
|
||
if (objc != 3) {
|
||
errorString = "pathtype name";
|
||
goto not3Args;
|
||
}
|
||
switch (Tcl_GetPathType(Tcl_GetStringFromObj(objv[2], &length))) {
|
||
case TCL_PATH_ABSOLUTE:
|
||
Tcl_SetStringObj(resultPtr, "absolute", -1);
|
||
break;
|
||
case TCL_PATH_RELATIVE:
|
||
Tcl_SetStringObj(resultPtr, "relative", -1);
|
||
break;
|
||
case TCL_PATH_VOLUME_RELATIVE:
|
||
Tcl_SetStringObj(resultPtr, "volumerelative", -1);
|
||
break;
|
||
}
|
||
goto done;
|
||
case FILE_SPLIT: {
|
||
int pargc, i;
|
||
char **pargvList;
|
||
Tcl_Obj *listObjPtr;
|
||
|
||
if (objc != 3) {
|
||
errorString = "split name";
|
||
goto not3Args;
|
||
}
|
||
|
||
Tcl_SplitPath(Tcl_GetStringFromObj(objv[2], &length), &pargc,
|
||
&pargvList);
|
||
listObjPtr = Tcl_NewListObj(0, (Tcl_Obj **) NULL);
|
||
for (i = 0; i < pargc; i++) {
|
||
Tcl_ListObjAppendElement(interp, listObjPtr,
|
||
Tcl_NewStringObj(pargvList[i], -1));
|
||
}
|
||
ckfree((char *) pargvList);
|
||
Tcl_SetObjResult(interp, listObjPtr);
|
||
goto done;
|
||
}
|
||
case FILE_JOIN: {
|
||
char **pargv = (char **) ckalloc((objc - 2) * sizeof(char *));
|
||
int i;
|
||
|
||
for (i = 2; i < objc; i++) {
|
||
pargv[i - 2] = Tcl_GetStringFromObj(objv[i], &length);
|
||
}
|
||
Tcl_JoinPath(objc - 2, pargv, &buffer);
|
||
Tcl_SetStringObj(resultPtr, Tcl_DStringValue(&buffer), buffer.length);
|
||
ckfree((char *) pargv);
|
||
Tcl_DStringFree(&buffer);
|
||
goto done;
|
||
}
|
||
case FILE_RENAME: {
|
||
char **pargv = (char **) ckalloc(objc * sizeof(char *));
|
||
int i;
|
||
|
||
for (i = 0; i < objc; i++) {
|
||
pargv[i] = Tcl_GetStringFromObj(objv[i], &length);
|
||
}
|
||
result = TclFileRenameCmd(interp, objc, pargv);
|
||
ckfree((char *) pargv);
|
||
goto done;
|
||
}
|
||
case FILE_MKDIR: {
|
||
char **pargv = (char **) ckalloc(objc * sizeof(char *));
|
||
int i;
|
||
|
||
for (i = 0; i < objc; i++) {
|
||
pargv[i] = Tcl_GetStringFromObj(objv[i], &length);
|
||
}
|
||
result = TclFileMakeDirsCmd(interp, objc, pargv);
|
||
ckfree((char *) pargv);
|
||
goto done;
|
||
}
|
||
case FILE_DELETE: {
|
||
char **pargv = (char **) ckalloc(objc * sizeof(char *));
|
||
int i;
|
||
|
||
for (i = 0; i < objc; i++) {
|
||
pargv[i] = Tcl_GetStringFromObj(objv[i], &length);
|
||
}
|
||
result = TclFileDeleteCmd(interp, objc, pargv);
|
||
ckfree((char *) pargv);
|
||
goto done;
|
||
}
|
||
case FILE_COPY: {
|
||
char **pargv = (char **) ckalloc(objc * sizeof(char *));
|
||
int i;
|
||
|
||
for (i = 0; i < objc; i++) {
|
||
pargv[i] = Tcl_GetStringFromObj(objv[i], &length);
|
||
}
|
||
result = TclFileCopyCmd(interp, objc, pargv);
|
||
ckfree((char *) pargv);
|
||
goto done;
|
||
}
|
||
case FILE_NATIVENAME:
|
||
fileName = Tcl_TranslateFileName(interp,
|
||
Tcl_GetStringFromObj(objv[2], &length), &buffer);
|
||
Tcl_SetStringObj(resultPtr, fileName, -1);
|
||
goto done;
|
||
}
|
||
|
||
/*
|
||
* Next, handle operations that can be satisfied with the "access"
|
||
* kernel call.
|
||
*/
|
||
|
||
fileName = Tcl_TranslateFileName(interp,
|
||
Tcl_GetStringFromObj(objv[2], &length), &buffer);
|
||
|
||
switch (index) {
|
||
case FILE_READABLE:
|
||
if (objc != 3) {
|
||
errorString = "readable name";
|
||
goto not3Args;
|
||
}
|
||
mode = R_OK;
|
||
checkAccess:
|
||
Tcl_SetBooleanObj(resultPtr, !((fileName == NULL)
|
||
|| (access(fileName, mode) == -1)));
|
||
goto done;
|
||
case FILE_WRITABLE:
|
||
if (objc != 3) {
|
||
errorString = "writable name";
|
||
goto not3Args;
|
||
}
|
||
mode = W_OK;
|
||
goto checkAccess;
|
||
case FILE_EXECUTABLE:
|
||
if (objc != 3) {
|
||
errorString = "executable name";
|
||
goto not3Args;
|
||
}
|
||
mode = X_OK;
|
||
goto checkAccess;
|
||
case FILE_EXISTS:
|
||
if (objc != 3) {
|
||
errorString = "exists name";
|
||
goto not3Args;
|
||
}
|
||
mode = F_OK;
|
||
goto checkAccess;
|
||
}
|
||
|
||
|
||
/*
|
||
* Lastly, check stuff that requires the file to be stat-ed.
|
||
*/
|
||
|
||
if (fileName == NULL) {
|
||
result = TCL_ERROR;
|
||
goto done;
|
||
}
|
||
|
||
switch (index) {
|
||
case FILE_ATIME:
|
||
if (objc != 3) {
|
||
errorString = "atime name";
|
||
goto not3Args;
|
||
}
|
||
|
||
if (stat(fileName, &statBuf) == -1) {
|
||
goto badStat;
|
||
}
|
||
Tcl_SetLongObj(resultPtr, (long) statBuf.st_atime);
|
||
goto done;
|
||
case FILE_ISDIRECTORY:
|
||
if (objc != 3) {
|
||
errorString = "isdirectory name";
|
||
goto not3Args;
|
||
}
|
||
statOp = 2;
|
||
break;
|
||
case FILE_ISFILE:
|
||
if (objc != 3) {
|
||
errorString = "isfile name";
|
||
goto not3Args;
|
||
}
|
||
statOp = 1;
|
||
break;
|
||
case FILE_LSTAT:
|
||
if (objc != 4) {
|
||
Tcl_WrongNumArgs(interp, 1, objv, "lstat name varName");
|
||
result = TCL_ERROR;
|
||
goto done;
|
||
}
|
||
|
||
if (lstat(fileName, &statBuf) == -1) {
|
||
Tcl_AppendStringsToObj(resultPtr, "couldn't lstat \"",
|
||
Tcl_GetStringFromObj(objv[2], &length), "\": ",
|
||
Tcl_PosixError(interp), (char *) NULL);
|
||
result = TCL_ERROR;
|
||
goto done;
|
||
}
|
||
result = StoreStatData(interp, Tcl_GetStringFromObj(objv[3],
|
||
&length), &statBuf);
|
||
goto done;
|
||
case FILE_MTIME:
|
||
if (objc != 3) {
|
||
errorString = "mtime name";
|
||
goto not3Args;
|
||
}
|
||
if (stat(fileName, &statBuf) == -1) {
|
||
goto badStat;
|
||
}
|
||
Tcl_SetLongObj(resultPtr, (long) statBuf.st_mtime);
|
||
goto done;
|
||
case FILE_OWNED:
|
||
if (objc != 3) {
|
||
errorString = "owned name";
|
||
goto not3Args;
|
||
}
|
||
statOp = 0;
|
||
break;
|
||
case FILE_READLINK: {
|
||
char linkValue[MAXPATHLEN + 1];
|
||
int linkLength;
|
||
|
||
if (objc != 3) {
|
||
errorString = "readlink name";
|
||
goto not3Args;
|
||
}
|
||
|
||
/*
|
||
* If S_IFLNK isn't defined it means that the machine doesn't
|
||
* support symbolic links, so the file can't possibly be a
|
||
* symbolic link. Generate an EINVAL error, which is what
|
||
* happens on machines that do support symbolic links when
|
||
* you invoke readlink on a file that isn't a symbolic link.
|
||
*/
|
||
|
||
#ifndef S_IFLNK
|
||
linkLength = -1;
|
||
errno = EINVAL;
|
||
#else
|
||
linkLength = readlink(fileName, linkValue, sizeof(linkValue) - 1);
|
||
#endif /* S_IFLNK */
|
||
if (linkLength == -1) {
|
||
Tcl_AppendStringsToObj(resultPtr, "couldn't readlink \"",
|
||
Tcl_GetStringFromObj(objv[2], &length), "\": ",
|
||
Tcl_PosixError(interp), (char *) NULL);
|
||
result = TCL_ERROR;
|
||
goto done;
|
||
}
|
||
linkValue[linkLength] = 0;
|
||
Tcl_SetStringObj(resultPtr, linkValue, linkLength);
|
||
goto done;
|
||
}
|
||
case FILE_SIZE:
|
||
if (objc != 3) {
|
||
errorString = "size name";
|
||
goto not3Args;
|
||
}
|
||
if (stat(fileName, &statBuf) == -1) {
|
||
goto badStat;
|
||
}
|
||
Tcl_SetLongObj(resultPtr, (long) statBuf.st_size);
|
||
goto done;
|
||
case FILE_STAT:
|
||
if (objc != 4) {
|
||
Tcl_WrongNumArgs(interp, 1, objv, "stat name varName");
|
||
result = TCL_ERROR;
|
||
goto done;
|
||
}
|
||
|
||
if (stat(fileName, &statBuf) == -1) {
|
||
badStat:
|
||
Tcl_AppendStringsToObj(resultPtr, "couldn't stat \"",
|
||
Tcl_GetStringFromObj(objv[2], &length),
|
||
"\": ", Tcl_PosixError(interp), (char *) NULL);
|
||
result = TCL_ERROR;
|
||
goto done;
|
||
}
|
||
result = StoreStatData(interp, Tcl_GetStringFromObj(objv[3],
|
||
&length), &statBuf);
|
||
goto done;
|
||
case FILE_TYPE:
|
||
if (objc != 3) {
|
||
errorString = "type name";
|
||
goto not3Args;
|
||
}
|
||
if (lstat(fileName, &statBuf) == -1) {
|
||
goto badStat;
|
||
}
|
||
errorString = GetTypeFromMode((int) statBuf.st_mode);
|
||
Tcl_SetStringObj(resultPtr, errorString, -1);
|
||
goto done;
|
||
}
|
||
|
||
if (stat(fileName, &statBuf) == -1) {
|
||
Tcl_SetBooleanObj(resultPtr, 0);
|
||
goto done;
|
||
}
|
||
switch (statOp) {
|
||
case 0:
|
||
/*
|
||
* For Windows and Macintosh, there are no user ids
|
||
* associated with a file, so we always return 1.
|
||
*/
|
||
|
||
#if (defined(__WIN32__) || defined(MAC_TCL))
|
||
mode = 1;
|
||
#else
|
||
mode = (geteuid() == statBuf.st_uid);
|
||
#endif
|
||
break;
|
||
case 1:
|
||
mode = S_ISREG(statBuf.st_mode);
|
||
break;
|
||
case 2:
|
||
mode = S_ISDIR(statBuf.st_mode);
|
||
break;
|
||
}
|
||
Tcl_SetBooleanObj(resultPtr, mode);
|
||
|
||
done:
|
||
Tcl_DStringFree(&buffer);
|
||
return result;
|
||
|
||
not3Args:
|
||
Tcl_WrongNumArgs(interp, 1, objv, errorString);
|
||
result = TCL_ERROR;
|
||
goto done;
|
||
}
|
||
|
||
/*
|
||
*----------------------------------------------------------------------
|
||
*
|
||
* 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->result.
|
||
*
|
||
* Side effects:
|
||
* Elements of the associative array given by "varName" are modified.
|
||
*
|
||
*----------------------------------------------------------------------
|
||
*/
|
||
|
||
static int
|
||
StoreStatData(interp, varName, statPtr)
|
||
Tcl_Interp *interp; /* Interpreter for error reports. */
|
||
char *varName; /* Name of associative array variable
|
||
* in which to store stat results. */
|
||
struct stat *statPtr; /* Pointer to buffer containing
|
||
* stat data to store in varName. */
|
||
{
|
||
char string[30];
|
||
|
||
sprintf(string, "%ld", (long) statPtr->st_dev);
|
||
if (Tcl_SetVar2(interp, varName, "dev", string, TCL_LEAVE_ERR_MSG)
|
||
== NULL) {
|
||
return TCL_ERROR;
|
||
}
|
||
sprintf(string, "%ld", (long) statPtr->st_ino);
|
||
if (Tcl_SetVar2(interp, varName, "ino", string, TCL_LEAVE_ERR_MSG)
|
||
== NULL) {
|
||
return TCL_ERROR;
|
||
}
|
||
sprintf(string, "%ld", (long) statPtr->st_mode);
|
||
if (Tcl_SetVar2(interp, varName, "mode", string, TCL_LEAVE_ERR_MSG)
|
||
== NULL) {
|
||
return TCL_ERROR;
|
||
}
|
||
sprintf(string, "%ld", (long) statPtr->st_nlink);
|
||
if (Tcl_SetVar2(interp, varName, "nlink", string, TCL_LEAVE_ERR_MSG)
|
||
== NULL) {
|
||
return TCL_ERROR;
|
||
}
|
||
sprintf(string, "%ld", (long) statPtr->st_uid);
|
||
if (Tcl_SetVar2(interp, varName, "uid", string, TCL_LEAVE_ERR_MSG)
|
||
== NULL) {
|
||
return TCL_ERROR;
|
||
}
|
||
sprintf(string, "%ld", (long) statPtr->st_gid);
|
||
if (Tcl_SetVar2(interp, varName, "gid", string, TCL_LEAVE_ERR_MSG)
|
||
== NULL) {
|
||
return TCL_ERROR;
|
||
}
|
||
sprintf(string, "%lu", (unsigned long) statPtr->st_size);
|
||
if (Tcl_SetVar2(interp, varName, "size", string, TCL_LEAVE_ERR_MSG)
|
||
== NULL) {
|
||
return TCL_ERROR;
|
||
}
|
||
sprintf(string, "%ld", (long) statPtr->st_atime);
|
||
if (Tcl_SetVar2(interp, varName, "atime", string, TCL_LEAVE_ERR_MSG)
|
||
== NULL) {
|
||
return TCL_ERROR;
|
||
}
|
||
sprintf(string, "%ld", (long) statPtr->st_mtime);
|
||
if (Tcl_SetVar2(interp, varName, "mtime", string, TCL_LEAVE_ERR_MSG)
|
||
== NULL) {
|
||
return TCL_ERROR;
|
||
}
|
||
sprintf(string, "%ld", (long) statPtr->st_ctime);
|
||
if (Tcl_SetVar2(interp, varName, "ctime", string, TCL_LEAVE_ERR_MSG)
|
||
== NULL) {
|
||
return TCL_ERROR;
|
||
}
|
||
if (Tcl_SetVar2(interp, varName, "type",
|
||
GetTypeFromMode((int) statPtr->st_mode), TCL_LEAVE_ERR_MSG) == NULL) {
|
||
return TCL_ERROR;
|
||
}
|
||
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 char *
|
||
GetTypeFromMode(mode)
|
||
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_ForCmd --
|
||
*
|
||
* 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_ForCmd(dummy, interp, argc, argv)
|
||
ClientData dummy; /* Not used. */
|
||
Tcl_Interp *interp; /* Current interpreter. */
|
||
int argc; /* Number of arguments. */
|
||
char **argv; /* Argument strings. */
|
||
{
|
||
int result, value;
|
||
|
||
if (argc != 5) {
|
||
Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
|
||
" start test next command\"", (char *) NULL);
|
||
return TCL_ERROR;
|
||
}
|
||
|
||
result = Tcl_Eval(interp, argv[1]);
|
||
if (result != TCL_OK) {
|
||
if (result == TCL_ERROR) {
|
||
Tcl_AddErrorInfo(interp, "\n (\"for\" initial command)");
|
||
}
|
||
return result;
|
||
}
|
||
while (1) {
|
||
result = Tcl_ExprBoolean(interp, argv[2], &value);
|
||
if (result != TCL_OK) {
|
||
return result;
|
||
}
|
||
if (!value) {
|
||
break;
|
||
}
|
||
result = Tcl_Eval(interp, argv[4]);
|
||
if ((result != TCL_OK) && (result != TCL_CONTINUE)) {
|
||
if (result == TCL_ERROR) {
|
||
char msg[60];
|
||
sprintf(msg, "\n (\"for\" body line %d)", interp->errorLine);
|
||
Tcl_AddErrorInfo(interp, msg);
|
||
}
|
||
break;
|
||
}
|
||
result = Tcl_Eval(interp, argv[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(dummy, interp, objc, objv)
|
||
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; /* Count of value lists */
|
||
Tcl_Obj *bodyPtr;
|
||
|
||
#define STATIC_SIZE 4
|
||
int indexArray[STATIC_SIZE]; /* Array of value list indices */
|
||
int varcListArray[STATIC_SIZE]; /* # loop variables per list */
|
||
Tcl_Obj **varvListArray[STATIC_SIZE]; /* Array of variable name lists */
|
||
int argcListArray[STATIC_SIZE]; /* Array of value list sizes */
|
||
Tcl_Obj **argvListArray[STATIC_SIZE]; /* Array of value lists */
|
||
|
||
int *index = indexArray;
|
||
int *varcList = varcListArray;
|
||
Tcl_Obj ***varvList = varvListArray;
|
||
int *argcList = argcListArray;
|
||
Tcl_Obj ***argvList = argvListArray;
|
||
|
||
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]
|
||
* 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]
|
||
*/
|
||
|
||
numLists = (objc-2)/2;
|
||
if (numLists > STATIC_SIZE) {
|
||
index = (int *) ckalloc(numLists * sizeof(int));
|
||
varcList = (int *) ckalloc(numLists * sizeof(int));
|
||
varvList = (Tcl_Obj ***) ckalloc(numLists * sizeof(Tcl_Obj **));
|
||
argcList = (int *) ckalloc(numLists * sizeof(int));
|
||
argvList = (Tcl_Obj ***) ckalloc(numLists * sizeof(Tcl_Obj **));
|
||
}
|
||
for (i = 0; i < numLists; i++) {
|
||
index[i] = 0;
|
||
varcList[i] = 0;
|
||
varvList[i] = (Tcl_Obj **) NULL;
|
||
argcList[i] = 0;
|
||
argvList[i] = (Tcl_Obj **) NULL;
|
||
}
|
||
|
||
/*
|
||
* Break up the value lists and variable lists into elements
|
||
* THIS FAILS IF THE OBJECT'S STRING REP HAS A NULL BYTE.
|
||
*/
|
||
|
||
maxj = 0;
|
||
for (i = 0; i < numLists; i++) {
|
||
result = Tcl_ListObjGetElements(interp, objv[1+i*2],
|
||
&varcList[i], &varvList[i]);
|
||
if (result != TCL_OK) {
|
||
goto done;
|
||
}
|
||
if (varcList[i] < 1) {
|
||
Tcl_AppendToObj(Tcl_GetObjResult(interp),
|
||
"foreach varlist is empty", -1);
|
||
result = TCL_ERROR;
|
||
goto done;
|
||
}
|
||
|
||
result = Tcl_ListObjGetElements(interp, objv[2+i*2],
|
||
&argcList[i], &argvList[i]);
|
||
if (result != TCL_OK) {
|
||
goto done;
|
||
}
|
||
|
||
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;
|
||
int isEmptyObj = 0;
|
||
|
||
if (k < argcList[i]) {
|
||
valuePtr = argvList[i][k];
|
||
} else {
|
||
valuePtr = Tcl_NewObj(); /* empty string */
|
||
isEmptyObj = 1;
|
||
}
|
||
varValuePtr = Tcl_ObjSetVar2(interp, varvList[i][v], NULL,
|
||
valuePtr, TCL_PARSE_PART1);
|
||
if (varValuePtr == NULL) {
|
||
if (isEmptyObj) {
|
||
Tcl_DecrRefCount(valuePtr);
|
||
}
|
||
Tcl_ResetResult(interp);
|
||
Tcl_AppendStringsToObj(Tcl_GetObjResult(interp),
|
||
"couldn't set loop variable: \"",
|
||
Tcl_GetStringFromObj(varvList[i][v], (int *) NULL),
|
||
"\"", (char *) NULL);
|
||
result = TCL_ERROR;
|
||
goto done;
|
||
}
|
||
|
||
}
|
||
}
|
||
|
||
result = Tcl_EvalObj(interp, bodyPtr);
|
||
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) {
|
||
char msg[100];
|
||
sprintf(msg, "\n (\"foreach\" body line %d)",
|
||
interp->errorLine);
|
||
Tcl_AddObjErrorInfo(interp, msg, -1);
|
||
break;
|
||
} else {
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
if (result == TCL_OK) {
|
||
Tcl_ResetResult(interp);
|
||
}
|
||
|
||
done:
|
||
if (numLists > STATIC_SIZE) {
|
||
ckfree((char *) index);
|
||
ckfree((char *) varcList);
|
||
ckfree((char *) argcList);
|
||
ckfree((char *) varvList);
|
||
ckfree((char *) argvList);
|
||
}
|
||
return result;
|
||
#undef STATIC_SIZE
|
||
}
|
||
|
||
/*
|
||
*----------------------------------------------------------------------
|
||
*
|
||
* Tcl_FormatCmd --
|
||
*
|
||
* 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_FormatCmd(dummy, interp, argc, argv)
|
||
ClientData dummy; /* Not used. */
|
||
Tcl_Interp *interp; /* Current interpreter. */
|
||
int argc; /* Number of arguments. */
|
||
char **argv; /* Argument strings. */
|
||
{
|
||
register char *format; /* Used to read characters from the format
|
||
* string. */
|
||
char newFormat[40]; /* A new format specifier is generated here. */
|
||
int width; /* Field width from field specifier, or 0 if
|
||
* no width given. */
|
||
int precision; /* Field precision from field specifier, or 0
|
||
* if no precision given. */
|
||
int size; /* Number of bytes needed for result of
|
||
* conversion, based on type of conversion
|
||
* ("e", "s", etc.), width, and precision. */
|
||
int intValue; /* Used to hold value to pass to sprintf, if
|
||
* it's a one-word integer or char value */
|
||
char *ptrValue = NULL; /* Used to hold value to pass to sprintf, if
|
||
* it's a one-word value. */
|
||
double doubleValue; /* Used to hold value to pass to sprintf if
|
||
* it's a double value. */
|
||
int whichValue; /* Indicates which of intValue, ptrValue,
|
||
* or doubleValue has the value to pass to
|
||
* sprintf, according to the following
|
||
* definitions: */
|
||
# define INT_VALUE 0
|
||
# define PTR_VALUE 1
|
||
# define DOUBLE_VALUE 2
|
||
char *dst = interp->result; /* Where result is stored. Starts off at
|
||
* interp->resultSpace, but may get dynamically
|
||
* re-allocated if this isn't enough. */
|
||
int dstSize = 0; /* Number of non-null characters currently
|
||
* stored at dst. */
|
||
int dstSpace = TCL_RESULT_SIZE;
|
||
/* Total amount of storage space available
|
||
* in dst (not including null terminator. */
|
||
int noPercent; /* Special case for speed: indicates there's
|
||
* no field specifier, just a string to copy. */
|
||
int argIndex; /* Index of argument to substitute next. */
|
||
int gotXpg = 0; /* Non-zero means that an XPG3 %n$-style
|
||
* specifier has been seen. */
|
||
int gotSequential = 0; /* Non-zero means that a regular sequential
|
||
* (non-XPG3) conversion specifier has been
|
||
* seen. */
|
||
int useShort; /* Value to be printed is short (half word). */
|
||
char *end; /* Used to locate end of numerical fields. */
|
||
|
||
/*
|
||
* This procedure is a bit nasty. The goal is to use sprintf to
|
||
* do most of the dirty work. There are several problems:
|
||
* 1. this procedure can't trust its arguments.
|
||
* 2. we must be able to provide a large enough result area to hold
|
||
* whatever's generated. This is hard to estimate.
|
||
* 2. there's no way to move the arguments from argv to the call
|
||
* to sprintf in a reasonable way. This is particularly nasty
|
||
* because some of the arguments may be two-word values (doubles).
|
||
* So, what happens here is to scan the format string one % group
|
||
* at a time, making many individual calls to sprintf.
|
||
*/
|
||
|
||
if (argc < 2) {
|
||
Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
|
||
" formatString ?arg arg ...?\"", (char *) NULL);
|
||
return TCL_ERROR;
|
||
}
|
||
argIndex = 2;
|
||
for (format = argv[1]; *format != 0; ) {
|
||
register char *newPtr = newFormat;
|
||
|
||
width = precision = noPercent = useShort = 0;
|
||
whichValue = PTR_VALUE;
|
||
|
||
/*
|
||
* Get rid of any characters before the next field specifier.
|
||
*/
|
||
|
||
if (*format != '%') {
|
||
register char *p;
|
||
|
||
ptrValue = p = format;
|
||
while ((*format != '%') && (*format != 0)) {
|
||
*p = *format;
|
||
p++;
|
||
format++;
|
||
}
|
||
size = p - ptrValue;
|
||
noPercent = 1;
|
||
goto doField;
|
||
}
|
||
|
||
if (format[1] == '%') {
|
||
ptrValue = format;
|
||
size = 1;
|
||
noPercent = 1;
|
||
format += 2;
|
||
goto doField;
|
||
}
|
||
|
||
/*
|
||
* Parse off a field specifier, compute how many characters
|
||
* will be needed to store the result, and substitute for
|
||
* "*" size specifiers.
|
||
*/
|
||
|
||
*newPtr = '%';
|
||
newPtr++;
|
||
format++;
|
||
if (isdigit(UCHAR(*format))) {
|
||
int tmp;
|
||
|
||
/*
|
||
* Check for an XPG3-style %n$ specification. Note: there
|
||
* must not be a mixture of XPG3 specs and non-XPG3 specs
|
||
* in the same format string.
|
||
*/
|
||
|
||
tmp = strtoul(format, &end, 10);
|
||
if (*end != '$') {
|
||
goto notXpg;
|
||
}
|
||
format = end+1;
|
||
gotXpg = 1;
|
||
if (gotSequential) {
|
||
goto mixedXPG;
|
||
}
|
||
argIndex = tmp+1;
|
||
if ((argIndex < 2) || (argIndex >= argc)) {
|
||
goto badIndex;
|
||
}
|
||
goto xpgCheckDone;
|
||
}
|
||
|
||
notXpg:
|
||
gotSequential = 1;
|
||
if (gotXpg) {
|
||
goto mixedXPG;
|
||
}
|
||
|
||
xpgCheckDone:
|
||
while ((*format == '-') || (*format == '#') || (*format == '0')
|
||
|| (*format == ' ') || (*format == '+')) {
|
||
*newPtr = *format;
|
||
newPtr++;
|
||
format++;
|
||
}
|
||
if (isdigit(UCHAR(*format))) {
|
||
width = strtoul(format, &end, 10);
|
||
format = end;
|
||
} else if (*format == '*') {
|
||
if (argIndex >= argc) {
|
||
goto badIndex;
|
||
}
|
||
if (Tcl_GetInt(interp, argv[argIndex], &width) != TCL_OK) {
|
||
goto fmtError;
|
||
}
|
||
argIndex++;
|
||
format++;
|
||
}
|
||
if (width > 100000) {
|
||
/*
|
||
* Don't allow arbitrarily large widths: could cause core
|
||
* dump when we try to allocate a zillion bytes of memory
|
||
* below.
|
||
*/
|
||
|
||
width = 100000;
|
||
} else if (width < 0) {
|
||
width = 0;
|
||
}
|
||
if (width != 0) {
|
||
TclFormatInt(newPtr, width);
|
||
while (*newPtr != 0) {
|
||
newPtr++;
|
||
}
|
||
}
|
||
if (*format == '.') {
|
||
*newPtr = '.';
|
||
newPtr++;
|
||
format++;
|
||
}
|
||
if (isdigit(UCHAR(*format))) {
|
||
precision = strtoul(format, &end, 10);
|
||
format = end;
|
||
} else if (*format == '*') {
|
||
if (argIndex >= argc) {
|
||
goto badIndex;
|
||
}
|
||
if (Tcl_GetInt(interp, argv[argIndex], &precision) != TCL_OK) {
|
||
goto fmtError;
|
||
}
|
||
argIndex++;
|
||
format++;
|
||
}
|
||
if (precision != 0) {
|
||
TclFormatInt(newPtr, precision);
|
||
while (*newPtr != 0) {
|
||
newPtr++;
|
||
}
|
||
}
|
||
if (*format == 'l') {
|
||
format++;
|
||
} else if (*format == 'h') {
|
||
useShort = 1;
|
||
*newPtr = 'h';
|
||
newPtr++;
|
||
format++;
|
||
}
|
||
*newPtr = *format;
|
||
newPtr++;
|
||
*newPtr = 0;
|
||
if (argIndex >= argc) {
|
||
goto badIndex;
|
||
}
|
||
switch (*format) {
|
||
case 'i':
|
||
newPtr[-1] = 'd';
|
||
case 'd':
|
||
case 'o':
|
||
case 'u':
|
||
case 'x':
|
||
case 'X':
|
||
if (Tcl_GetInt(interp, argv[argIndex], (int *) &intValue)
|
||
!= TCL_OK) {
|
||
goto fmtError;
|
||
}
|
||
whichValue = INT_VALUE;
|
||
size = 40 + precision;
|
||
break;
|
||
case 's':
|
||
ptrValue = argv[argIndex];
|
||
size = strlen(argv[argIndex]);
|
||
break;
|
||
case 'c':
|
||
if (Tcl_GetInt(interp, argv[argIndex], (int *) &intValue)
|
||
!= TCL_OK) {
|
||
goto fmtError;
|
||
}
|
||
whichValue = INT_VALUE;
|
||
size = 1;
|
||
break;
|
||
case 'e':
|
||
case 'E':
|
||
case 'f':
|
||
case 'g':
|
||
case 'G':
|
||
if (Tcl_GetDouble(interp, argv[argIndex], &doubleValue)
|
||
!= TCL_OK) {
|
||
goto fmtError;
|
||
}
|
||
whichValue = DOUBLE_VALUE;
|
||
size = 320;
|
||
if (precision > 10) {
|
||
size += precision;
|
||
}
|
||
break;
|
||
case 0:
|
||
Tcl_SetResult(interp,
|
||
"format string ended in middle of field specifier",
|
||
TCL_STATIC);
|
||
goto fmtError;
|
||
default:
|
||
{
|
||
char buf[80];
|
||
|
||
sprintf(buf, "bad field specifier \"%c\"", *format);
|
||
Tcl_SetResult(interp, buf, TCL_VOLATILE);
|
||
goto fmtError;
|
||
}
|
||
}
|
||
argIndex++;
|
||
format++;
|
||
|
||
/*
|
||
* Make sure that there's enough space to hold the formatted
|
||
* result, then format it.
|
||
*/
|
||
|
||
doField:
|
||
if (width > size) {
|
||
size = width;
|
||
}
|
||
if ((dstSize + size) > dstSpace) {
|
||
char *newDst;
|
||
int newSpace;
|
||
|
||
newSpace = 2*(dstSize + size);
|
||
newDst = (char *) ckalloc((unsigned) newSpace+1);
|
||
if (dstSize != 0) {
|
||
memcpy((VOID *) newDst, (VOID *) dst, (size_t) dstSize);
|
||
}
|
||
if (dstSpace != TCL_RESULT_SIZE) {
|
||
ckfree(dst);
|
||
}
|
||
dst = newDst;
|
||
dstSpace = newSpace;
|
||
}
|
||
if (noPercent) {
|
||
memcpy((VOID *) (dst+dstSize), (VOID *) ptrValue, (size_t) size);
|
||
dstSize += size;
|
||
dst[dstSize] = 0;
|
||
} else {
|
||
if (whichValue == DOUBLE_VALUE) {
|
||
sprintf(dst+dstSize, newFormat, doubleValue);
|
||
} else if (whichValue == INT_VALUE) {
|
||
if (useShort) {
|
||
sprintf(dst+dstSize, newFormat, (short) intValue);
|
||
} else {
|
||
sprintf(dst+dstSize, newFormat, intValue);
|
||
}
|
||
} else {
|
||
sprintf(dst+dstSize, newFormat, ptrValue);
|
||
}
|
||
dstSize += strlen(dst+dstSize);
|
||
}
|
||
}
|
||
|
||
if (dstSpace != TCL_RESULT_SIZE) {
|
||
Tcl_SetResult(interp, dst, TCL_DYNAMIC);
|
||
} else {
|
||
Tcl_SetResult(interp, dst, TCL_STATIC);
|
||
}
|
||
return TCL_OK;
|
||
|
||
mixedXPG:
|
||
interp->result = "cannot mix \"%\" and \"%n$\" conversion specifiers";
|
||
goto fmtError;
|
||
|
||
badIndex:
|
||
if (gotXpg) {
|
||
interp->result = "\"%n$\" argument index out of range";
|
||
} else {
|
||
interp->result = "not enough arguments for all format specifiers";
|
||
}
|
||
|
||
fmtError:
|
||
if (dstSpace != TCL_RESULT_SIZE) {
|
||
ckfree(dst);
|
||
}
|
||
return TCL_ERROR;
|
||
}
|