Tcl Source Code

    }

    /*
     * The eofchar is \32 (^Z). This is the usual on Windows, but we effect
     * this cross-platform to allow for scripted documents. [Bug: 2040]
     */

    Tcl_SetChannelOption(interp, chan, "-eofchar", "\32 {}");

    /*
     * If the encoding is specified, set it for the channel. Else don't touch
     * it (and use the system encoding) Report error on unknown encoding.
     */

    if (encodingName != NULL) {

 *
 * MODULE_SCOPE int	TclUtfToUniChar(const char *string, Tcl_UniChar *ch);
 *----------------------------------------------------------------
 */

#define TclUtfToUniChar(str, chPtr) \
	((((unsigned char) *(str)) < 0xC0) ?		\
	    ((*(chPtr) = (unsigned char) *(str)), 1)	\
	    : Tcl_UtfToUniChar(str, chPtr))

/*
 *----------------------------------------------------------------
 * Macro that encapsulates the logic that determines when it is safe to
 * interpret a string as a byte array directly. In summary, the object must be
 * a byte array and must not have a string representation (as the operations

 *
 * Side effects:
 *	None.
 *
 *---------------------------------------------------------------------------
 */

Tcl_Obj * TclJoinPath(int elements, Tcl_Obj * const objv[]);

Tcl_Obj *
Tcl_FSJoinPath(
    Tcl_Obj *listObj,		/* Path elements to join, may have a zero
				 * reference count. */
    int elements)		/* Number of elements to use (-1 = all) */
{
    Tcl_Obj *copy, *res;
    int objc;
    Tcl_Obj **objv;


    if (Tcl_ListObjLength(NULL, listObj, &objc) != TCL_OK) {
	return NULL;
    }






    elements = ((elements >= 0) && (elements <= objc)) ? elements : objc;
    copy = TclListObjCopy(NULL, listObj);
    Tcl_ListObjGetElements(NULL, listObj, &objc, &objv);
    res = TclJoinPath(elements, objv);
    Tcl_DecrRefCount(copy);
    return res;
}





Tcl_Obj *
TclJoinPath(
    int elements,
    Tcl_Obj * const objv[])


{
    Tcl_Obj *res = NULL;	/* Resulting path object (container of join) */
    Tcl_Obj *elt;		/* Path part (result if returns part of path) */
    int i;
    Tcl_Filesystem *fsPtr = NULL;

    for (i = 0; i < elements; i++) {

	int driveNameLength, strEltLen, length;
	Tcl_PathType type;
	char *strElt, *ptr;
	Tcl_Obj *driveName = NULL;
	
	elt = objv[i];

	/*
	 * This is a special case where we can be much more efficient, where
	 * we are joining a single relative path onto an object that is
	 * already of path type. The 'TclNewFSPathObj' call below creates an
	 * object which can be normalized more efficiently. Currently we only
	 * use the special case when we have exactly two elements, but we
	 * could expand that in the future.
         *
         * Bugfix [a47641a0]. TclNewFSPathObj requires first argument
         * to be an absolute path. Added a check for that elt is absolute.
	 */

	if ((i == (elements-2)) && (i == 0)
                && (elt->typePtr == &tclFsPathType)
		&& !((elt->bytes != NULL) && (elt->bytes[0] == '\0'))
                && TclGetPathType(elt, NULL, NULL, NULL) == TCL_PATH_ABSOLUTE) {
            Tcl_Obj *tailObj = objv[i+1];


	    type = TclGetPathType(tailObj, NULL, NULL, NULL);
	    if (type == TCL_PATH_RELATIVE) {
		const char *str;
		int len;

		str = Tcl_GetStringFromObj(tailObj, &len);
		if (len == 0) {
		    /*
		     * This happens if we try to handle the root volume '/'.
		     * There's no need to return a special path object, when
		     * the base itself is just fine!
		     */




		    goto partReturn; /* return elt; */
		}

		/*
		 * If it doesn't begin with '.' and is a unix path or it a
		 * windows path without backslashes, then we can be very
		 * efficient here. (In fact even a windows path with
		 * backslashes can be joined efficiently, but the path object
		 * would not have forward slashes only, and this would
		 * therefore contradict our 'file join' documentation).
		 */

		if (str[0] != '.' && ((tclPlatform != TCL_PLATFORM_WINDOWS)
			|| (strchr(str, '\\') == NULL))) {
		    /*
		     * Finally, on Windows, 'file join' is defined to convert
		     * all backslashes to forward slashes, so the base part
		     * cannot have backslashes either.
		     */

		    if ((tclPlatform != TCL_PLATFORM_WINDOWS)
			    || (strchr(Tcl_GetString(elt), '\\') == NULL)



		    ) {
			if (PATHFLAGS(elt)) {
			    elt = TclNewFSPathObj(elt, str, len);
			    goto partReturn; /* return elt; */
			}
			if (TCL_PATH_ABSOLUTE != Tcl_FSGetPathType(elt)) {
			    elt = TclNewFSPathObj(elt, str, len);
			    goto partReturn; /* return elt; */
			}
			(void) Tcl_FSGetNormalizedPath(NULL, elt);
			if (elt == PATHOBJ(elt)->normPathPtr) {
			    elt = TclNewFSPathObj(elt, str, len);
			    goto partReturn; /* return elt; */
			}
		    }
		}

		/*
		 * Otherwise we don't have an easy join, and we must let the
		 * more general code below handle things.
		 */
	    } else if (tclPlatform == TCL_PLATFORM_UNIX) {
		elt = tailObj;


		goto partReturn; /* return elt; */
	    } else {
		const char *str = TclGetString(tailObj);

		if (tclPlatform == TCL_PLATFORM_WINDOWS) {
		    if (strchr(str, '\\') == NULL) {
			elt = tailObj;


			goto partReturn; /* return elt; */
		    }
		}
	    }
	}
	strElt = Tcl_GetStringFromObj(elt, &strEltLen);
	driveNameLength = 0;
	type = TclGetPathType(elt, &fsPtr, &driveNameLength, &driveName);

		     * is not in normalized form
		     */

		    goto noQuickReturn;
		}
		ptr++;
	    }




	    /*
	     * This element is just what we want to return already; no further
	     * manipulation is requred.
	     */

	    goto partReturn; /* return elt; */
	}

	/*
	 * The path element was not of a suitable form to be returned as is.
	 * We need to perform a more complex operation here.
	 */

    noQuickReturn:
	if (res == NULL) {
	    res = Tcl_NewObj();



	}
	ptr = Tcl_GetStringFromObj(res, &length);

	/*
	 * Strip off any './' before a tilde, unless this is the beginning of
	 * the path.
	 */

	if (length > 0 && strEltLen > 0 && (strElt[0] == '.') &&

	if (fsPtr == &tclNativeFilesystem || fsPtr == NULL) {
	    TclpNativeJoinPath(res, strElt);
	} else {
	    char separator = '/';
	    int needsSep = 0;

	    if (fsPtr->filesystemSeparatorProc != NULL) {
		Tcl_Obj *sep = fsPtr->filesystemSeparatorProc(res);

		if (sep != NULL) {
		    separator = TclGetString(sep)[0];
		    TclDecrRefCount(sep);
		}
		/* Safety check in case the VFS driver caused sharing */
		if (Tcl_IsShared(res)) {
		    TclDecrRefCount(res);
		    res = Tcl_DuplicateObj(res);
		    Tcl_IncrRefCount(res);
		}

	    Tcl_SetObjLength(res, length);
	}
    }
    if (res == NULL) {
	res = Tcl_NewObj();
    }
    return res;

partReturn:
    if (res != NULL) {
	TclDecrRefCount(res);
    }
    return elt;
}

/*
 *---------------------------------------------------------------------------
 *
 * Tcl_FSConvertToPathType --
 *

		objc--; objv++;
		while (objc--) {
		    TclpNativeJoinPath(transPtr, Tcl_GetString(*objv++));
		}
		TclDecrRefCount(parts);
	    } else {
		Tcl_Obj *pair[2];






		pair[0] = transPtr;
		pair[1] = Tcl_NewStringObj(name+split+1, -1);
		transPtr = TclJoinPath(2, pair);
		TclDecrRefCount(pair[0]);

		TclDecrRefCount(pair[1]);

	    }
	}
	Tcl_DStringFree(&temp);
    } else {


	transPtr = TclJoinPath(1, &pathPtr);

    }

    /*
     * Now we have a translated filename in 'transPtr'. This will have forward
     * slashes on Windows, and will not contain any ~user sequences.
     */

    append index "# element name is the name of a command and the value is\n"
    append index "# a script that loads the command.\n\n"
    if {[llength $args] == 0} {
	set args *.tcl
    }

    auto_mkindex_parser::init
    foreach file [lsort [glob -- {*}$args]] {
        if {[catch {auto_mkindex_parser::mkindex $file} msg opts] == 0} {
            append index $msg
        } else {
            cd $oldDir
	    return -options $opts $msg
        }
    }

    append index "# more commands.  Typically each line is a command that\n"
    append index "# sets an element in the auto_index array, where the\n"
    append index "# element name is the name of a command and the value is\n"
    append index "# a script that loads the command.\n\n"
    if {[llength $args] == 0} {
	set args *.tcl
    }
    foreach file [lsort [glob -- {*}$args]] {
	set f ""
	set error [catch {
	    set f [open $file]
	    while {[gets $f line] >= 0} {
		if {[regexp {^proc[ 	]+([^ 	]*)} $line match procName]} {
		    set procName [lindex [auto_qualify $procName "::"] 0]
		    append index "set [list auto_index($procName)]"