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authorrjohnson <rjohnson>1998-03-26 14:45:59 (GMT)
committerrjohnson <rjohnson>1998-03-26 14:45:59 (GMT)
commit2b5738da524e944cda39e24c0a87b745a43bd8c3 (patch)
tree6e8c9473978f6dab66c601e911721a7bd9d70b1b /generic/tclCmdAH.c
parentc6a259aeeca4814a97cf6694814c63e74e4e18fa (diff)
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Initial revision
Diffstat (limited to 'generic/tclCmdAH.c')
-rw-r--r--generic/tclCmdAH.c1977
1 files changed, 1977 insertions, 0 deletions
diff --git a/generic/tclCmdAH.c b/generic/tclCmdAH.c
new file mode 100644
index 0000000..4c5fd0a
--- /dev/null
+++ b/generic/tclCmdAH.c
@@ -0,0 +1,1977 @@
+/*
+ * 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 1.159 97/10/31 13:06:07
+ */
+
+#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;
+ Tcl_Obj *armPtr;
+
+ 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;
+
+ Tcl_ListObjGetElements(interp, caseObjv[0], &caseObjc, &newObjv);
+ caseObjv = newObjv;
+ }
+
+ for (i = 0; i < caseObjc; i += 2) {
+ int patObjc, j;
+ char **patObjv;
+ char *pat;
+ register char *p;
+
+ if (i == (caseObjc-1)) {
+ Tcl_ResetResult(interp);
+ 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);
+ 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)) {
+ body = i+1;
+ goto match;
+ }
+ continue;
+ }
+
+
+ /*
+ * Break up pattern lists, then check each of the patterns
+ * in the list.
+ */
+
+ result = Tcl_SplitList(interp, pat, &patObjc, &patObjv);
+ if (result != TCL_OK) {
+ return result;
+ }
+ for (j = 0; j < patObjc; j++) {
+ if (Tcl_StringMatch(string, patObjv[j])) {
+ body = i+1;
+ break;
+ }
+ }
+ ckfree((char *) patObjv);
+ if (j < patObjc) {
+ break;
+ }
+ }
+
+ match:
+ if (body != -1) {
+ armPtr = caseObjv[body-1];
+ result = Tcl_EvalObj(interp, caseObjv[body]);
+ if (result == TCL_ERROR) {
+ char msg[100];
+
+ arg = Tcl_GetStringFromObj(armPtr, &argLen);
+ sprintf(msg, "\n (\"%.*s\" arm line %d)", argLen, arg,
+ interp->errorLine);
+ Tcl_AddObjErrorInfo(interp, msg, -1);
+ }
+ return result;
+ }
+
+ /*
+ * Nothing matched: return nothing.
+ */
+
+ return TCL_OK;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * Tcl_CatchObjCmd --
+ *
+ * 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.
+ *
+ *----------------------------------------------------------------------
+ */
+
+ /* ARGSUSED */
+int
+Tcl_CatchObjCmd(dummy, interp, objc, objv)
+ ClientData dummy; /* Not used. */
+ Tcl_Interp *interp; /* Current interpreter. */
+ int objc; /* Number of arguments. */
+ Tcl_Obj *CONST objv[]; /* Argument objects. */
+{
+ Tcl_Obj *varNamePtr = NULL;
+ int result;
+
+ if ((objc != 2) && (objc != 3)) {
+ Tcl_WrongNumArgs(interp, 1, objv, "command ?varName?");
+ return TCL_ERROR;
+ }
+
+ /*
+ * Save a pointer to the variable name object, if any, in case the
+ * Tcl_EvalObj reallocates the bytecode interpreter's evaluation
+ * stack rendering objv invalid.
+ */
+
+ if (objc == 3) {
+ varNamePtr = objv[2];
+ }
+
+ result = Tcl_EvalObj(interp, objv[1]);
+
+ if (objc == 3) {
+ if (Tcl_ObjSetVar2(interp, varNamePtr, NULL,
+ Tcl_GetObjResult(interp), TCL_PARSE_PART1) == NULL) {
+ Tcl_ResetResult(interp);
+ Tcl_AppendToObj(Tcl_GetObjResult(interp),
+ "couldn't save command result in variable", -1);
+ return TCL_ERROR;
+ }
+ }
+
+ /*
+ * Set the interpreter's object result to an integer object holding the
+ * integer Tcl_EvalObj result. Note that we don't bother generating a
+ * string representation. We reset the interpreter's object result
+ * to an unshared empty object and then set it to be an integer object.
+ */
+
+ Tcl_ResetResult(interp);
+ Tcl_SetIntObj(Tcl_GetObjResult(interp), 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(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 *dirName;
+ int dirLength;
+ Tcl_DString buffer;
+ int result;
+
+ if (objc > 2) {
+ Tcl_WrongNumArgs(interp, 1, objv, "dirName");
+ return TCL_ERROR;
+ }
+
+ if (objc == 2) {
+ dirName = Tcl_GetStringFromObj(objv[1], &dirLength);
+ } else {
+ dirName = "~";
+ }
+ dirName = Tcl_TranslateFileName(interp, dirName, &buffer);
+ if (dirName == NULL) {
+ return TCL_ERROR;
+ }
+ result = TclChdir(interp, dirName);
+ Tcl_DStringFree(&buffer);
+ 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(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);
+ Tcl_DecrRefCount(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 */
+ }
+ return result;
+ }
+
+ /*
+ * 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.
+ */
+
+ Tcl_DecrRefCount(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);
+ if (fileName == NULL) {
+ result = TCL_ERROR ;
+ } else {
+ 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:
+ /*
+ * The result might have been set within Tcl_TranslateFileName
+ * (like no such user "blah" for file exists ~blah)
+ * but we don't want to flag an error in that case.
+ */
+ if (fileName == NULL) {
+ Tcl_SetObjResult(interp, Tcl_NewBooleanObj(0));
+ } else {
+ Tcl_SetBooleanObj(resultPtr, (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;
+
+ /*
+ * We copy the argument object pointers into a local array to avoid
+ * the problem that "objv" might become invalid. It is a pointer into
+ * the evaluation stack and that stack might be grown and reallocated
+ * if the loop body requires a large amount of stack space.
+ */
+
+#define NUM_ARGS 9
+ Tcl_Obj *(argObjStorage[NUM_ARGS]);
+ Tcl_Obj **argObjv = argObjStorage;
+
+#define STATIC_LIST_SIZE 4
+ int indexArray[STATIC_LIST_SIZE]; /* Array of value list indices */
+ int varcListArray[STATIC_LIST_SIZE]; /* # loop variables per list */
+ Tcl_Obj **varvListArray[STATIC_LIST_SIZE]; /* Array of var name lists */
+ int argcListArray[STATIC_LIST_SIZE]; /* Array of value list sizes */
+ Tcl_Obj **argvListArray[STATIC_LIST_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;
+ }
+
+ /*
+ * Create the object argument array "argObjv". Make sure argObjv is
+ * large enough to hold the objc arguments.
+ */
+
+ if (objc > NUM_ARGS) {
+ argObjv = (Tcl_Obj **) ckalloc(objc * sizeof(Tcl_Obj *));
+ }
+ for (i = 0; i < objc; i++) {
+ argObjv[i] = objv[i];
+ }
+
+ /*
+ * 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_LIST_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, argObjv[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, argObjv[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 = argObjv[objc-1];
+ for (j = 0; j < maxj; j++) {
+ for (i = 0; i < numLists; i++) {
+ /*
+ * If a variable or value list object has been converted to
+ * another kind of Tcl object, convert it back to a list object
+ * and refetch the pointer to its element array.
+ */
+
+ if (argObjv[1+i*2]->typePtr != &tclListType) {
+ result = Tcl_ListObjGetElements(interp, argObjv[1+i*2],
+ &varcList[i], &varvList[i]);
+ if (result != TCL_OK) {
+ panic("Tcl_ForeachObjCmd: could not reconvert variable list %d to a list object\n", i);
+ }
+ }
+ if (argObjv[2+i*2]->typePtr != &tclListType) {
+ result = Tcl_ListObjGetElements(interp, argObjv[2+i*2],
+ &argcList[i], &argvList[i]);
+ if (result != TCL_OK) {
+ panic("Tcl_ForeachObjCmd: could not reconvert value list %d to a list object\n", 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_LIST_SIZE) {
+ ckfree((char *) index);
+ ckfree((char *) varcList);
+ ckfree((char *) argcList);
+ ckfree((char *) varvList);
+ ckfree((char *) argvList);
+ }
+ if (argObjv != argObjStorage) {
+ ckfree((char *) argObjv);
+ }
+ return result;
+#undef STATIC_LIST_SIZE
+#undef NUM_ARGS
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * 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(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 char *format; /* Used to read characters from the format
+ * string. */
+ int formatLen; /* The length of the format string */
+ char *endPtr; /* Points to the last char in format array */
+ 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
+# define MAX_FLOAT_SIZE 320
+
+ Tcl_Obj *resultPtr; /* Where result is stored finally. */
+ char staticBuf[MAX_FLOAT_SIZE + 1];
+ /* A static buffer to copy the format results
+ * into */
+ char *dst = staticBuf; /* The buffer that sprintf writes into each
+ * time the format processes a specifier */
+ int dstSize = MAX_FLOAT_SIZE;
+ /* The size of the dst buffer */
+ int noPercent; /* Special case for speed: indicates there's
+ * no field specifier, just a string to copy.*/
+ int objIndex; /* 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 objv 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 (objc < 2) {
+ Tcl_WrongNumArgs(interp, 1, objv,
+ "formatString ?arg arg ...?");
+ return TCL_ERROR;
+ }
+
+ format = Tcl_GetStringFromObj(objv[1], &formatLen);
+ endPtr = format + formatLen;
+ resultPtr = Tcl_NewObj();
+ objIndex = 2;
+
+ while (format < endPtr) {
+ register char *newPtr = newFormat;
+
+ width = precision = noPercent = useShort = 0;
+ whichValue = PTR_VALUE;
+
+ /*
+ * Get rid of any characters before the next field specifier.
+ */
+ if (*format != '%') {
+ ptrValue = format;
+ while ((*format != '%') && (format < endPtr)) {
+ format++;
+ }
+ size = format - 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;
+ }
+ objIndex = tmp+1;
+ if ((objIndex < 2) || (objIndex >= objc)) {
+ 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 (objIndex >= objc) {
+ goto badIndex;
+ }
+ if (Tcl_GetIntFromObj(interp, objv[objIndex],
+ &width) != TCL_OK) {
+ goto fmtError;
+ }
+ objIndex++;
+ 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 (objIndex >= objc) {
+ goto badIndex;
+ }
+ if (Tcl_GetIntFromObj(interp, objv[objIndex],
+ &precision) != TCL_OK) {
+ goto fmtError;
+ }
+ objIndex++;
+ 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 (objIndex >= objc) {
+ goto badIndex;
+ }
+ switch (*format) {
+ case 'i':
+ newPtr[-1] = 'd';
+ case 'd':
+ case 'o':
+ case 'u':
+ case 'x':
+ case 'X':
+ if (Tcl_GetIntFromObj(interp, objv[objIndex],
+ (int *) &intValue) != TCL_OK) {
+ goto fmtError;
+ }
+ whichValue = INT_VALUE;
+ size = 40 + precision;
+ break;
+ case 's':
+ ptrValue = Tcl_GetStringFromObj(objv[objIndex], &size);
+ break;
+ case 'c':
+ if (Tcl_GetIntFromObj(interp, objv[objIndex],
+ (int *) &intValue) != TCL_OK) {
+ goto fmtError;
+ }
+ whichValue = INT_VALUE;
+ size = 1;
+ break;
+ case 'e':
+ case 'E':
+ case 'f':
+ case 'g':
+ case 'G':
+ if (Tcl_GetDoubleFromObj(interp, objv[objIndex],
+ &doubleValue) != TCL_OK) {
+ goto fmtError;
+ }
+ whichValue = DOUBLE_VALUE;
+ size = MAX_FLOAT_SIZE;
+ 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[40];
+ sprintf(buf, "bad field specifier \"%c\"", *format);
+ Tcl_SetResult(interp, buf, TCL_VOLATILE);
+ goto fmtError;
+ }
+ }
+ objIndex++;
+ format++;
+
+ /*
+ * Make sure that there's enough space to hold the formatted
+ * result, then format it.
+ */
+
+ doField:
+ if (width > size) {
+ size = width;
+ }
+ if (noPercent) {
+ Tcl_AppendToObj(resultPtr, ptrValue, size);
+ } else {
+ if (size > dstSize) {
+ if (dst != staticBuf) {
+ ckfree(dst);
+ }
+ dst = (char *) ckalloc((unsigned) (size + 1));
+ dstSize = size;
+ }
+
+ if (whichValue == DOUBLE_VALUE) {
+ sprintf(dst, newFormat, doubleValue);
+ } else if (whichValue == INT_VALUE) {
+ if (useShort) {
+ sprintf(dst, newFormat, (short) intValue);
+ } else {
+ sprintf(dst, newFormat, intValue);
+ }
+ } else {
+ sprintf(dst, newFormat, ptrValue);
+ }
+ Tcl_AppendToObj(resultPtr, dst, -1);
+ }
+ }
+
+ Tcl_SetObjResult(interp, resultPtr);
+ if(dst != staticBuf) {
+ ckfree(dst);
+ }
+ return TCL_OK;
+
+ mixedXPG:
+ Tcl_SetResult(interp,
+ "cannot mix \"%\" and \"%n$\" conversion specifiers", TCL_STATIC);
+ goto fmtError;
+
+ badIndex:
+ if (gotXpg) {
+ Tcl_SetResult(interp,
+ "\"%n$\" argument index out of range", TCL_STATIC);
+ } else {
+ Tcl_SetResult(interp,
+ "not enough arguments for all format specifiers", TCL_STATIC);
+ }
+
+ fmtError:
+ if(dst != staticBuf) {
+ ckfree(dst);
+ }
+ Tcl_DecrRefCount(resultPtr);
+ return TCL_ERROR;
+}