diff options
Diffstat (limited to 'generic/tclCmdAH.c')
| -rw-r--r-- | generic/tclCmdAH.c | 2305 |
1 files changed, 0 insertions, 2305 deletions
diff --git a/generic/tclCmdAH.c b/generic/tclCmdAH.c deleted file mode 100644 index 8aa6880..0000000 --- a/generic/tclCmdAH.c +++ /dev/null @@ -1,2305 +0,0 @@ -/* - * 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. - * - * RCS: @(#) $Id: tclCmdAH.c,v 1.5 1999/04/16 00:46:43 stanton Exp $ - */ - -#include "tclInt.h" -#include "tclPort.h" -#include <locale.h> - -typedef int (StatProc)_ANSI_ARGS_((CONST char *path, struct stat *buf)); - -/* - * Prototypes for local procedures defined in this file: - */ - -static int CheckAccess _ANSI_ARGS_((Tcl_Interp *interp, - Tcl_Obj *objPtr, int mode)); -static int GetStatBuf _ANSI_ARGS_((Tcl_Interp *interp, - Tcl_Obj *objPtr, StatProc *statProc, - struct stat *statPtr)); -static char * GetTypeFromMode _ANSI_ARGS_((int mode)); -static int SplitPath _ANSI_ARGS_((Tcl_Interp *interp, - Tcl_Obj *objPtr, int *argcPtr, char ***argvPtr)); -static int StoreStatData _ANSI_ARGS_((Tcl_Interp *interp, - char *varName, struct stat *statPtr)); -static char ** StringifyObjects _ANSI_ARGS_((int objc, - Tcl_Obj *CONST objv[])); - -/* - *---------------------------------------------------------------------- - * - * Tcl_BreakObjCmd -- - * - * This procedure is invoked to process the "break" Tcl command. - * See the user documentation for details on what it does. - * - * With the bytecode compiler, this procedure is only called when - * a command name is computed at runtime, and is "break" or the name - * to which "break" was renamed: e.g., "set z break; $z" - * - * Results: - * A standard Tcl result. - * - * Side effects: - * See the user documentation. - * - *---------------------------------------------------------------------- - */ - - /* ARGSUSED */ -int -Tcl_BreakObjCmd(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 != 1) { - Tcl_WrongNumArgs(interp, 1, objv, NULL); - return TCL_ERROR; - } - return TCL_BREAK; -} - -/* - *---------------------------------------------------------------------- - * - * Tcl_CaseObjCmd -- - * - * This procedure is invoked to process the "case" Tcl command. - * See the user documentation for details on what it does. - * - * 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 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; - } - - string = Tcl_GetString(objv[1]); - body = -1; - - arg = Tcl_GetString(objv[2]); - 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. - */ - - 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; - unsigned 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_GetString(caseObjv[i]); - for (p = (unsigned char *) pat; *p != '\0'; p++) { - if (isspace(*p) || (*p == '\\')) { /* INTL: ISO space, UCHAR */ - 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_EvalObjEx(interp, caseObjv[body], 0); - if (result == TCL_ERROR) { - char msg[100 + TCL_INTEGER_SPACE]; - - arg = Tcl_GetString(armPtr); - sprintf(msg, - "\n (\"%.50s\" arm line %d)", 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_EvalObjEx(interp, objv[1], 0); - - if (objc == 3) { - if (Tcl_ObjSetVar2(interp, varNamePtr, NULL, - Tcl_GetObjResult(interp), 0) == 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; - Tcl_DString ds; - int result; - - if (objc > 2) { - Tcl_WrongNumArgs(interp, 1, objv, "?dirName?"); - return TCL_ERROR; - } - - if (objc == 2) { - dirName = Tcl_GetString(objv[1]); - } else { - dirName = "~"; - } - if (Tcl_TranslateFileName(interp, dirName, &ds) == NULL) { - return TCL_ERROR; - } - - result = Tcl_Chdir(Tcl_DStringValue(&ds)); - Tcl_DStringFree(&ds); - - if (result != 0) { - Tcl_AppendResult(interp, "couldn't change working directory to \"", - dirName, "\": ", Tcl_PosixError(interp), (char *) NULL); - return TCL_ERROR; - } - return TCL_OK; -} - -/* - *---------------------------------------------------------------------- - * - * 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_ContinueObjCmd - - * - * This procedure is invoked to process the "continue" Tcl command. - * See the user documentation for details on what it does. - * - * With the bytecode compiler, this procedure is only called when - * a command name is computed at runtime, and is "continue" or the name - * to which "continue" was renamed: e.g., "set z continue; $z" - * - * Results: - * A standard Tcl result. - * - * Side effects: - * See the user documentation. - * - *---------------------------------------------------------------------- - */ - - /* ARGSUSED */ -int -Tcl_ContinueObjCmd(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 != 1) { - Tcl_WrongNumArgs(interp, 1, objv, NULL); - return TCL_ERROR; - } - return TCL_CONTINUE; -} - -/* - *---------------------------------------------------------------------- - * - * Tcl_EncodingObjCmd -- - * - * This command manipulates encodings. - * - * Results: - * A standard Tcl result. - * - * Side effects: - * See the user documentation. - * - *---------------------------------------------------------------------- - */ - -int -Tcl_EncodingObjCmd(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 index, length; - Tcl_Encoding encoding; - char *string; - Tcl_DString ds; - Tcl_Obj *resultPtr; - - static char *optionStrings[] = { - "convertfrom", "convertto", "names", "system", - NULL - }; - enum options { - ENC_CONVERTFROM, ENC_CONVERTTO, ENC_NAMES, ENC_SYSTEM - }; - - if (objc < 2) { - Tcl_WrongNumArgs(interp, 1, objv, "option ?arg ...?"); - return TCL_ERROR; - } - if (Tcl_GetIndexFromObj(interp, objv[1], optionStrings, "option", 0, - &index) != TCL_OK) { - return TCL_ERROR; - } - - switch ((enum options) index) { - case ENC_CONVERTTO: - case ENC_CONVERTFROM: { - char *name; - Tcl_Obj *data; - if (objc == 3) { - name = NULL; - data = objv[2]; - } else if (objc == 4) { - name = Tcl_GetString(objv[2]); - data = objv[3]; - } else { - Tcl_WrongNumArgs(interp, 2, objv, "?encoding? data"); - return TCL_ERROR; - } - - encoding = Tcl_GetEncoding(interp, name); - if (!encoding) { - return TCL_ERROR; - } - - if ((enum options) index == ENC_CONVERTFROM) { - /* - * Treat the string as binary data. - */ - - string = (char *) Tcl_GetByteArrayFromObj(data, &length); - Tcl_ExternalToUtfDString(encoding, string, length, &ds); - - /* - * Note that we cannot use Tcl_DStringResult here because - * it will truncate the string at the first null byte. - */ - - Tcl_SetStringObj(Tcl_GetObjResult(interp), - Tcl_DStringValue(&ds), Tcl_DStringLength(&ds)); - Tcl_DStringFree(&ds); - } else { - /* - * Store the result as binary data. - */ - - string = Tcl_GetStringFromObj(data, &length); - Tcl_UtfToExternalDString(encoding, string, length, &ds); - resultPtr = Tcl_GetObjResult(interp); - Tcl_SetByteArrayObj(resultPtr, - (unsigned char *) Tcl_DStringValue(&ds), - Tcl_DStringLength(&ds)); - Tcl_DStringFree(&ds); - } - - Tcl_FreeEncoding(encoding); - break; - } - case ENC_NAMES: { - if (objc > 2) { - Tcl_WrongNumArgs(interp, 2, objv, NULL); - return TCL_ERROR; - } - Tcl_GetEncodingNames(interp); - break; - } - case ENC_SYSTEM: { - if (objc > 3) { - Tcl_WrongNumArgs(interp, 2, objv, "?encoding?"); - return TCL_ERROR; - } - if (objc == 2) { - Tcl_SetResult(interp, Tcl_GetEncodingName(NULL), TCL_STATIC); - } else { - return Tcl_SetSystemEncoding(interp, - Tcl_GetStringFromObj(objv[2], NULL)); - } - break; - } - } - return TCL_OK; -} - -/* - *---------------------------------------------------------------------- - * - * Tcl_ErrorObjCmd -- - * - * This procedure is invoked to process the "error" Tcl command. - * See the user documentation for details on what it does. - * - * Results: - * A standard Tcl object result. - * - * Side effects: - * See the user documentation. - * - *---------------------------------------------------------------------- - */ - - /* ARGSUSED */ -int -Tcl_ErrorObjCmd(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; - 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) { - Tcl_SetVar2Ex(interp, "errorCode", NULL, objv[3], TCL_GLOBAL_ONLY); - iPtr->flags |= ERROR_CODE_SET; - } - - 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_EvalObjEx(interp, objv[1], 0); - } else { - /* - * More than one argument: concatenate them together with spaces - * between, then evaluate the result. - */ - - objPtr = Tcl_ConcatObj(objc-1, objv+1); - Tcl_IncrRefCount(objPtr); - result = Tcl_EvalObjEx(interp, objPtr, 0); - Tcl_DecrRefCount(objPtr); - } - if (result == TCL_ERROR) { - char msg[32 + TCL_INTEGER_SPACE]; - - 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. - */ - - 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. */ -{ - Tcl_Obj *resultPtr; - int index; - -/* - * This list of constants should match the fileOption string array below. - */ - - 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 - }; - enum options { - 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 - }; - - 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; - } - - resultPtr = Tcl_GetObjResult(interp); - switch ((enum options) index) { - case FILE_ATIME: { - struct stat buf; - - if (objc != 3) { - goto only3Args; - } - if (GetStatBuf(interp, objv[2], TclpStat, &buf) != TCL_OK) { - return TCL_ERROR; - } - Tcl_SetLongObj(resultPtr, (long) buf.st_atime); - return TCL_OK; - } - case FILE_ATTRIBUTES: { - return TclFileAttrsCmd(interp, objc, objv); - } - case FILE_COPY: { - int result; - char **argv; - - argv = StringifyObjects(objc, objv); - result = TclFileCopyCmd(interp, objc, argv); - ckfree((char *) argv); - return result; - } - case FILE_DELETE: { - int result; - char **argv; - - argv = StringifyObjects(objc, objv); - result = TclFileDeleteCmd(interp, objc, argv); - ckfree((char *) argv); - return result; - } - case FILE_DIRNAME: { - int argc; - char **argv; - - if (objc != 3) { - goto only3Args; - } - if (SplitPath(interp, objv[2], &argc, &argv) != TCL_OK) { - return TCL_ERROR; - } - - /* - * 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 (argc > 1) { - Tcl_DString ds; - - Tcl_DStringInit(&ds); - Tcl_JoinPath(argc - 1, argv, &ds); - Tcl_SetStringObj(resultPtr, Tcl_DStringValue(&ds), - Tcl_DStringLength(&ds)); - Tcl_DStringFree(&ds); - } else if ((argc == 0) - || (Tcl_GetPathType(argv[0]) == TCL_PATH_RELATIVE)) { - Tcl_SetStringObj(resultPtr, - ((tclPlatform == TCL_PLATFORM_MAC) ? ":" : "."), 1); - } else { - Tcl_SetStringObj(resultPtr, argv[0], -1); - } - ckfree((char *) argv); - return TCL_OK; - } - case FILE_EXECUTABLE: { - if (objc != 3) { - goto only3Args; - } - return CheckAccess(interp, objv[2], X_OK); - } - case FILE_EXISTS: { - if (objc != 3) { - goto only3Args; - } - return CheckAccess(interp, objv[2], F_OK); - } - case FILE_EXTENSION: { - char *fileName, *extension; - if (objc != 3) { - goto only3Args; - } - fileName = Tcl_GetString(objv[2]); - extension = TclGetExtension(fileName); - if (extension != NULL) { - Tcl_SetStringObj(resultPtr, extension, -1); - } - return TCL_OK; - } - case FILE_ISDIRECTORY: { - int value; - struct stat buf; - - if (objc != 3) { - goto only3Args; - } - value = 0; - if (GetStatBuf(NULL, objv[2], TclpStat, &buf) == TCL_OK) { - value = S_ISDIR(buf.st_mode); - } - Tcl_SetBooleanObj(resultPtr, value); - return TCL_OK; - } - case FILE_ISFILE: { - int value; - struct stat buf; - - if (objc != 3) { - goto only3Args; - } - value = 0; - if (GetStatBuf(NULL, objv[2], TclpStat, &buf) == TCL_OK) { - value = S_ISREG(buf.st_mode); - } - Tcl_SetBooleanObj(resultPtr, value); - return TCL_OK; - } - case FILE_JOIN: { - char **argv; - Tcl_DString ds; - - if (objc < 3) { - Tcl_WrongNumArgs(interp, 2, objv, "name ?name ...?"); - return TCL_ERROR; - } - argv = StringifyObjects(objc - 2, objv + 2); - Tcl_DStringInit(&ds); - Tcl_JoinPath(objc - 2, argv, &ds); - Tcl_SetStringObj(resultPtr, Tcl_DStringValue(&ds), - Tcl_DStringLength(&ds)); - Tcl_DStringFree(&ds); - ckfree((char *) argv); - return TCL_OK; - } - case FILE_LSTAT: { - char *varName; - struct stat buf; - - if (objc != 4) { - Tcl_WrongNumArgs(interp, 2, objv, "name varName"); - return TCL_ERROR; - } - if (GetStatBuf(interp, objv[2], TclpLstat, &buf) != TCL_OK) { - return TCL_ERROR; - } - varName = Tcl_GetString(objv[3]); - return StoreStatData(interp, varName, &buf); - } - case FILE_MTIME: { - struct stat buf; - - if (objc != 3) { - goto only3Args; - } - if (GetStatBuf(interp, objv[2], TclpStat, &buf) != TCL_OK) { - return TCL_ERROR; - } - Tcl_SetLongObj(resultPtr, (long) buf.st_mtime); - return TCL_OK; - } - case FILE_MKDIR: { - char **argv; - int result; - - if (objc < 3) { - Tcl_WrongNumArgs(interp, 2, objv, "name ?name ...?"); - return TCL_ERROR; - } - argv = StringifyObjects(objc, objv); - result = TclFileMakeDirsCmd(interp, objc, argv); - ckfree((char *) argv); - return result; - } - case FILE_NATIVENAME: { - char *fileName; - Tcl_DString ds; - - if (objc != 3) { - goto only3Args; - } - fileName = Tcl_GetString(objv[2]); - fileName = Tcl_TranslateFileName(interp, fileName, &ds); - if (fileName == NULL) { - return TCL_ERROR; - } - Tcl_SetStringObj(resultPtr, fileName, Tcl_DStringLength(&ds)); - Tcl_DStringFree(&ds); - return TCL_OK; - } - case FILE_OWNED: { - int value; - struct stat buf; - - if (objc != 3) { - goto only3Args; - } - value = 0; - if (GetStatBuf(NULL, objv[2], TclpStat, &buf) == TCL_OK) { - /* - * For Windows and Macintosh, there are no user ids - * associated with a file, so we always return 1. - */ - -#if (defined(__WIN32__) || defined(MAC_TCL)) - value = 1; -#else - value = (geteuid() == buf.st_uid); -#endif - } - Tcl_SetBooleanObj(resultPtr, value); - return TCL_OK; - } - case FILE_PATHTYPE: { - char *fileName; - - if (objc != 3) { - goto only3Args; - } - fileName = Tcl_GetString(objv[2]); - switch (Tcl_GetPathType(fileName)) { - 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; - } - return TCL_OK; - } - case FILE_READABLE: { - if (objc != 3) { - goto only3Args; - } - return CheckAccess(interp, objv[2], R_OK); - } - case FILE_READLINK: { - char *fileName, *contents; - Tcl_DString name, link; - - if (objc != 3) { - goto only3Args; - } - - fileName = Tcl_GetString(objv[2]); - fileName = Tcl_TranslateFileName(interp, fileName, &name); - if (fileName == NULL) { - return TCL_ERROR; - } - - /* - * 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 - contents = NULL; - errno = EINVAL; -#else - contents = TclpReadlink(fileName, &link); -#endif /* S_IFLNK */ - - Tcl_DStringFree(&name); - if (contents == NULL) { - Tcl_AppendResult(interp, "could not readlink \"", - Tcl_GetString(objv[2]), "\": ", - Tcl_PosixError(interp), (char *) NULL); - return TCL_ERROR; - } - Tcl_DStringResult(interp, &link); - return TCL_OK; - } - case FILE_RENAME: { - int result; - char **argv; - - argv = StringifyObjects(objc, objv); - result = TclFileRenameCmd(interp, objc, argv); - ckfree((char *) argv); - return result; - } - case FILE_ROOTNAME: { - int length; - char *fileName, *extension; - - if (objc != 3) { - goto only3Args; - } - 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))); - } - return TCL_OK; - } - case FILE_SIZE: { - struct stat buf; - - if (objc != 3) { - goto only3Args; - } - if (GetStatBuf(interp, objv[2], TclpStat, &buf) != TCL_OK) { - return TCL_ERROR; - } - Tcl_SetLongObj(resultPtr, (long) buf.st_size); - return TCL_OK; - } - case FILE_SPLIT: { - int i, argc; - char **argv; - char *fileName; - Tcl_Obj *objPtr; - - if (objc != 3) { - goto only3Args; - } - fileName = Tcl_GetString(objv[2]); - Tcl_SplitPath(fileName, &argc, &argv); - for (i = 0; i < argc; i++) { - objPtr = Tcl_NewStringObj(argv[i], -1); - Tcl_ListObjAppendElement(NULL, resultPtr, objPtr); - } - ckfree((char *) argv); - return TCL_OK; - } - case FILE_STAT: { - char *varName; - struct stat buf; - - if (objc != 4) { - Tcl_WrongNumArgs(interp, 1, objv, "stat name varName"); - return TCL_ERROR; - } - if (GetStatBuf(interp, objv[2], TclpStat, &buf) != TCL_OK) { - return TCL_ERROR; - } - varName = Tcl_GetString(objv[3]); - return StoreStatData(interp, varName, &buf); - } - case FILE_TAIL: { - int argc; - char **argv; - - if (objc != 3) { - goto only3Args; - } - if (SplitPath(interp, objv[2], &argc, &argv) != TCL_OK) { - return TCL_ERROR; - } - - /* - * Return the last component, unless it is the only component, - * and it is the root of an absolute path. - */ - - if (argc > 0) { - if ((argc > 1) - || (Tcl_GetPathType(argv[0]) == TCL_PATH_RELATIVE)) { - Tcl_SetStringObj(resultPtr, argv[argc - 1], -1); - } - } - ckfree((char *) argv); - return TCL_OK; - } - case FILE_TYPE: { - struct stat buf; - - if (objc != 3) { - goto only3Args; - } - if (GetStatBuf(interp, objv[2], TclpLstat, &buf) != TCL_OK) { - return TCL_ERROR; - } - Tcl_SetStringObj(resultPtr, - GetTypeFromMode((unsigned short) buf.st_mode), -1); - return TCL_OK; - } - case FILE_VOLUMES: { - if (objc != 2) { - Tcl_WrongNumArgs(interp, 2, objv, NULL); - return TCL_ERROR; - } - return TclpListVolumes(interp); - } - case FILE_WRITABLE: { - if (objc != 3) { - goto only3Args; - } - return CheckAccess(interp, objv[2], W_OK); - } - } - - only3Args: - Tcl_WrongNumArgs(interp, 2, objv, "name"); - return TCL_ERROR; -} - -/* - *--------------------------------------------------------------------------- - * - * SplitPath -- - * - * Utility procedure used by Tcl_FileObjCmd() to split a path. - * Differs from standard Tcl_SplitPath in its handling of home - * directories; Tcl_SplitPath preserves the "~" while this - * procedure computes the actual full path name. - * - * Results: - * The return value is TCL_OK if the path could be split, TCL_ERROR - * otherwise. If TCL_ERROR was returned, an error message is left - * in interp. If TCL_OK was returned, *argvPtr is set to a newly - * allocated array of strings that represent the individual - * directories in the specified path, and *argcPtr is filled with - * the length of that array. - * - * Side effects: - * Memory allocated. The caller must eventually free this memory - * by calling ckfree() on *argvPtr. - * - *--------------------------------------------------------------------------- - */ - -static int -SplitPath(interp, objPtr, argcPtr, argvPtr) - Tcl_Interp *interp; /* Interp for error return. May be NULL. */ - Tcl_Obj *objPtr; /* Path to be split. */ - int *argcPtr; /* Filled with length of following array. */ - char ***argvPtr; /* Filled with array of strings representing - * the elements of the specified path. */ -{ - char *fileName; - - fileName = Tcl_GetString(objPtr); - - /* - * If there is only one element, and it starts with a tilde, - * perform tilde substitution and resplit the path. - */ - - Tcl_SplitPath(fileName, argcPtr, argvPtr); - if ((*argcPtr == 1) && (fileName[0] == '~')) { - Tcl_DString ds; - - ckfree((char *) *argvPtr); - fileName = Tcl_TranslateFileName(interp, fileName, &ds); - if (fileName == NULL) { - return TCL_ERROR; - } - Tcl_SplitPath(fileName, argcPtr, argvPtr); - Tcl_DStringFree(&ds); - } - return TCL_OK; -} - -/* - *--------------------------------------------------------------------------- - * - * CheckAccess -- - * - * Utility procedure used by Tcl_FileObjCmd() to query file - * attributes available through the access() system call. - * - * Results: - * Always returns TCL_OK. Sets interp's result to boolean true or - * false depending on whether the file has the specified attribute. - * - * Side effects: - * None. - * - *--------------------------------------------------------------------------- - */ - -static int -CheckAccess(interp, objPtr, mode) - Tcl_Interp *interp; /* Interp for status return. Must not be - * NULL. */ - Tcl_Obj *objPtr; /* Name of file to check. */ - int mode; /* Attribute to check; passed as argument to - * access(). */ -{ - int value; - char *fileName; - Tcl_DString ds; - - fileName = Tcl_GetString(objPtr); - fileName = Tcl_TranslateFileName(interp, fileName, &ds); - if (fileName == NULL) { - value = 0; - } else { - value = (TclAccess(fileName, mode) == 0); - Tcl_DStringFree(&ds); - } - Tcl_SetBooleanObj(Tcl_GetObjResult(interp), value); - - return TCL_OK; -} - -/* - *--------------------------------------------------------------------------- - * - * GetStatBuf -- - * - * Utility procedure used by Tcl_FileObjCmd() to query file - * attributes available through the stat() or lstat() system call. - * - * Results: - * The return value is TCL_OK if the specified file exists and can - * be stat'ed, TCL_ERROR otherwise. If TCL_ERROR is returned, an - * error message is left in interp's result. If TCL_OK is returned, - * *statPtr is filled with information about the specified file. - * - * Side effects: - * None. - * - *--------------------------------------------------------------------------- - */ - -static int -GetStatBuf(interp, objPtr, statProc, statPtr) - Tcl_Interp *interp; /* Interp for error return. May be NULL. */ - Tcl_Obj *objPtr; /* Path name to examine. */ - StatProc *statProc; /* Either stat() or lstat() depending on - * desired behavior. */ - struct stat *statPtr; /* Filled with info about file obtained by - * calling (*statProc)(). */ -{ - char *fileName; - Tcl_DString ds; - int status; - - fileName = Tcl_GetString(objPtr); - fileName = Tcl_TranslateFileName(interp, fileName, &ds); - if (fileName == NULL) { - return TCL_ERROR; - } - - status = (*statProc)(Tcl_DStringValue(&ds), statPtr); - Tcl_DStringFree(&ds); - - if (status < 0) { - if (interp != NULL) { - Tcl_AppendResult(interp, "could not read \"", - Tcl_GetString(objPtr), "\": ", - Tcl_PosixError(interp), (char *) NULL); - } - return TCL_ERROR; - } - return TCL_OK; -} - -/* - *---------------------------------------------------------------------- - * - * StoreStatData -- - * - * This is a utility procedure that breaks out the fields of a - * "stat" structure and stores them in textual form into the - * elements of an associative array. - * - * Results: - * Returns a standard Tcl return value. If an error occurs then - * a message is left in interp's result. - * - * Side effects: - * Elements of the associative array given by "varName" are modified. - * - *---------------------------------------------------------------------- - */ - -static int -StoreStatData(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[TCL_INTEGER_SPACE]; - - TclFormatInt(string, (long) statPtr->st_dev); - if (Tcl_SetVar2(interp, varName, "dev", string, TCL_LEAVE_ERR_MSG) - == NULL) { - return TCL_ERROR; - } - TclFormatInt(string, (long) statPtr->st_ino); - if (Tcl_SetVar2(interp, varName, "ino", string, TCL_LEAVE_ERR_MSG) - == NULL) { - return TCL_ERROR; - } - TclFormatInt(string, (unsigned short) statPtr->st_mode); - if (Tcl_SetVar2(interp, varName, "mode", string, TCL_LEAVE_ERR_MSG) - == NULL) { - return TCL_ERROR; - } - TclFormatInt(string, (long) statPtr->st_nlink); - if (Tcl_SetVar2(interp, varName, "nlink", string, TCL_LEAVE_ERR_MSG) - == NULL) { - return TCL_ERROR; - } - TclFormatInt(string, (long) statPtr->st_uid); - if (Tcl_SetVar2(interp, varName, "uid", string, TCL_LEAVE_ERR_MSG) - == NULL) { - return TCL_ERROR; - } - TclFormatInt(string, (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; - } - TclFormatInt(string, (long) statPtr->st_atime); - if (Tcl_SetVar2(interp, varName, "atime", string, TCL_LEAVE_ERR_MSG) - == NULL) { - return TCL_ERROR; - } - TclFormatInt(string, (long) statPtr->st_mtime); - if (Tcl_SetVar2(interp, varName, "mtime", string, TCL_LEAVE_ERR_MSG) - == NULL) { - return TCL_ERROR; - } - TclFormatInt(string, (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((unsigned short) 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_FoObjCmd -- - * - * This procedure is invoked to process the "for" Tcl command. - * See the user documentation for details on what it does. - * - * With the bytecode compiler, this procedure is only called when - * a command name is computed at runtime, and is "for" or the name - * to which "for" was renamed: e.g., - * "set z for; $z {set i 0} {$i<100} {incr i} {puts $i}" - * - * Results: - * A standard Tcl result. - * - * Side effects: - * See the user documentation. - * - *---------------------------------------------------------------------- - */ - - /* ARGSUSED */ -int -Tcl_ForObjCmd(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, value; - - if (objc != 5) { - Tcl_WrongNumArgs(interp, 1, objv, "start test next command"); - return TCL_ERROR; - } - - result = Tcl_EvalObjEx(interp, objv[1], 0); - if (result != TCL_OK) { - if (result == TCL_ERROR) { - Tcl_AddErrorInfo(interp, "\n (\"for\" initial command)"); - } - return result; - } - while (1) { - result = Tcl_ExprBooleanObj(interp, objv[2], &value); - if (result != TCL_OK) { - return result; - } - if (!value) { - break; - } - result = Tcl_EvalObjEx(interp, objv[4], 0); - if ((result != TCL_OK) && (result != TCL_CONTINUE)) { - if (result == TCL_ERROR) { - char msg[32 + TCL_INTEGER_SPACE]; - - sprintf(msg, "\n (\"for\" body line %d)",interp->errorLine); - Tcl_AddErrorInfo(interp, msg); - } - break; - } - result = Tcl_EvalObjEx(interp, objv[3], 0); - 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 - */ - - 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, 0); - if (varValuePtr == NULL) { - if (isEmptyObj) { - Tcl_DecrRefCount(valuePtr); - } - Tcl_ResetResult(interp); - Tcl_AppendStringsToObj(Tcl_GetObjResult(interp), - "couldn't set loop variable: \"", - Tcl_GetString(varvList[i][v]), "\"", (char *) NULL); - result = TCL_ERROR; - goto done; - } - - } - } - - result = Tcl_EvalObjEx(interp, bodyPtr, 0); - 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[32 + TCL_INTEGER_SPACE]; - - 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. */ -{ - 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 CHAR_VALUE 1 -# define PTR_VALUE 2 -# define DOUBLE_VALUE 3 -# define STRING_VALUE 4 -# 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. */ - int stringLen = 0; /* Length of string in characters rather - * than bytes. Used for %s substitution. */ - int gotMinus; /* Non-zero indicates that a minus flag has - * been seen in the current field. */ - int gotPrecision; /* Non-zero indicates that a precision has - * been set for the current field. */ - - /* - * 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. - * 3. 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 = (char *) 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; - gotMinus = gotPrecision = 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))) { /* INTL: Tcl source. */ - 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); /* INTL: "C" locale. */ - 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 == '+')) { - if (*format == '-') { - gotMinus = 1; - } - *newPtr = *format; - newPtr++; - format++; - } - if (isdigit(UCHAR(*format))) { /* INTL: Tcl source. */ - width = strtoul(format, &end, 10); /* INTL: Tcl source. */ - format = end; - } else if (*format == '*') { - if (objIndex >= objc) { - goto badIndex; - } - if (Tcl_GetIntFromObj(interp, /* INTL: Tcl source. */ - objv[objIndex], &width) != TCL_OK) { - goto fmtError; - } - if (width < 0) { - width = -width; - *newPtr = '-'; - gotMinus = 1; - newPtr++; - } - 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); /* INTL: printf format. */ - while (*newPtr != 0) { - newPtr++; - } - } - if (*format == '.') { - *newPtr = '.'; - newPtr++; - format++; - gotPrecision = 1; - } - if (isdigit(UCHAR(*format))) { /* INTL: Tcl source. */ - precision = strtoul(format, &end, 10); /* INTL: "C" locale. */ - format = end; - } else if (*format == '*') { - if (objIndex >= objc) { - goto badIndex; - } - if (Tcl_GetIntFromObj(interp, /* INTL: Tcl source. */ - objv[objIndex], &precision) != TCL_OK) { - goto fmtError; - } - objIndex++; - format++; - } - if (gotPrecision) { - TclFormatInt(newPtr, precision); /* INTL: printf format. */ - 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, /* INTL: Tcl source. */ - objv[objIndex], &intValue) != TCL_OK) { - goto fmtError; - } - whichValue = INT_VALUE; - size = 40 + precision; - break; - case 's': - /* - * Compute the length of the string in characters and add - * any additional space required by the field width. All of - * the extra characters will be spaces, so one byte per - * character is adequate. - */ - - whichValue = STRING_VALUE; - ptrValue = Tcl_GetStringFromObj(objv[objIndex], &size); - stringLen = Tcl_NumUtfChars(ptrValue, size); - if (gotPrecision && (precision < stringLen)) { - stringLen = precision; - } - size = Tcl_UtfAtIndex(ptrValue, stringLen) - ptrValue; - if (width > stringLen) { - size += (width - stringLen); - } - break; - case 'c': - if (Tcl_GetIntFromObj(interp, /* INTL: Tcl source. */ - objv[objIndex], &intValue) != TCL_OK) { - goto fmtError; - } - whichValue = CHAR_VALUE; - size = width + TCL_UTF_MAX; - break; - case 'e': - case 'E': - case 'f': - case 'g': - case 'G': - if (Tcl_GetDoubleFromObj(interp, /* INTL: Tcl source. */ - 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; - } - switch (whichValue) { - case DOUBLE_VALUE: { - sprintf(dst, newFormat, doubleValue); /* INTL: user locale. */ - break; - } - case INT_VALUE: { - if (useShort) { - sprintf(dst, newFormat, (short) intValue); - } else { - sprintf(dst, newFormat, intValue); - } - break; - } - case CHAR_VALUE: { - char *ptr; - ptr = dst; - if (!gotMinus) { - for ( ; --width > 0; ptr++) { - *ptr = ' '; - } - } - ptr += Tcl_UniCharToUtf(intValue, ptr); - for ( ; --width > 0; ptr++) { - *ptr = ' '; - } - *ptr = '\0'; - break; - } - case STRING_VALUE: { - char *ptr; - int pad; - - ptr = dst; - if (width > stringLen) { - pad = width - stringLen; - } else { - pad = 0; - } - - if (!gotMinus) { - while (pad > 0) { - *ptr++ = ' '; - pad--; - } - } - - size = Tcl_UtfAtIndex(ptrValue, stringLen) - ptrValue; - if (size) { - memcpy(ptr, ptrValue, (size_t) size); - ptr += size; - } - while (pad > 0) { - *ptr++ = ' '; - pad--; - } - *ptr = '\0'; - break; - } - default: { - sprintf(dst, newFormat, ptrValue); - break; - } - } - 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; -} - -/* - *--------------------------------------------------------------------------- - * - * StringifyObjects -- - * - * Helper function to bridge the gap between an object-based procedure - * and an older string-based procedure. - * - * Given an array of objects, allocate an array that consists of the - * string representations of those objects. - * - * Results: - * The return value is a pointer to the newly allocated array of - * strings. Elements 0 to (objc-1) of the string array point to the - * string representation of the corresponding element in the source - * object array; element objc of the string array is NULL. - * - * Side effects: - * Memory allocated. The caller must eventually free this memory - * by calling ckfree() on the return value. - * - *--------------------------------------------------------------------------- - */ - -static char ** -StringifyObjects(objc, objv) - int objc; /* Number of arguments. */ - Tcl_Obj *CONST objv[]; /* Argument objects. */ -{ - int i; - char **argv; - - argv = (char **) ckalloc((objc + 1) * sizeof(char *)); - for (i = 0; i < objc; i++) { - argv[i] = Tcl_GetString(objv[i]); - } - argv[i] = NULL; - return argv; -} |