Filers

All other options are on hard keys.The menu option KEYS informs you of active keys during a filers run as shown by the screen shot for Filer3. This screen looks somewhat different in different filters. Pressing KEYS in the main menu

Active hard keys are listed in more detail below and referred to by the letter on it - provided there is any. After a while, you'll remember the relevant keys. Menu options others than KEYS are self-explaining. PURGE is executed with or without confirmation, depending on flag -76. Like COPY it may be used with multiselection. Selection is done with the +/- key. EDITB ("Edit Best") edits like DownArrow, while LS EDITB (LS = Leftshift) edits an object always in a command line like LS DownArrow. For instance, pressing EDITB on PERIOD in the CAS menu, you see 2pi in the equation writer, but pressing LS EDITB one sees '2*pi' in the edit line. In addition, there is a SysRPL editor on RS EDITB (RS = Rightshift), displaying PERIOD as "SYMBOL ZINT 2 xPI x*". This function should only be used by those familiar with the basics of SysRPL. Note that COPY overwrites an equally named backup if copying from a directory to a port.

Purging in Port2 (flash bank) is less dangerous for users of Filer3. Purged port objects can mostly be recovered with the memory browser since they are not at once removed. Page 2 of the main menu in Filer2 and the other filers contains options related to transfer and looks as follows:

IOP? is the most comfortable I/O parameter setter one can imagine. It sets a screen and menu for toggling wire/infrared (only 49+) and ascii/binary and cycling through all admissible IOPAR values relevant for the 49/49+. The menu look somewhat different in Filer5 because IR transfer returned and a SD-card may be installed. CANCEL and OK leave the dialog box and set the currently displayed values which the user might have changed, In all filers, Reset is the last option in the IOP? menu. Remember that IOPAR does not include a setting of wire/infrared or ascii/binary transfer! With the exception of XRECV which keeps waiting for input of names, all transfer options can be used with multiple choice. ~OVW toggles the Overwrite flag. Filer1 has a language toggler on L (NXT) and transfer options from page 2 are on the following hard keys not listed below:
> (SEND), < (RECV), X (XSEND), LS X (XRECV), Y (IOP?).

Arrow keys work as in the built-in filer. For instance, LeftArrow goes UPDIR, RighArrow to a selected directory. Most hardkey options are active only if the main appl menu is present, TREE has its own menu. More options can be added to the APPS box. But these must not affect the filers application menu. For instance, from APPS you may directly run the Constants lib and I/O-functions inside a filer. Trivially valid hardkeys in the filers are not listed below (e.g. CANCEL, TurnOff, etc). Keys working both with a single item and multiple items are marked with asterisk.

**Hard Keys in the filers**
G	APPS choose box (for calling additonal options inside the filers).
H	Toggle two distinct Header views of the filer.
I	Toggle inverse sorting provided a sorting (Name, Size, Type) is active.
J	(VAR) Toggle variables only, or long library titles if in a port.
K	(STO) store the level 1 object in the selected name by overwriting it. If in a port, the level 1 object is stored in the current directory under a corresponding name. The backup object itself is not overwritten.
RCL *	Recall contents of a file to the stack.
L	Toggle the built-in languages in Filer1. Same as LANG on page 2 in other filers.
M *	Move file to another directory or to a port. Note: backups in ports will be overwritten.
N	Names sorted alphabetically. Does EVAL in Filer5 (49G+). Therefore, name sorting is on RS N.
O *	Order one or a set of selected files in a directory.
P	Pause (HALT). Return to the filer with the CONT key.
EVAL	(rightshifted on the 49G). Eval selected item (e.g., one may temporarily play a game).
	Delete tags from previously selected items. TREE entry in Filer5 (you may unselect also with U).
Q *	Quote the selected name(s). Quoting in ports includes the port-tag.
R	Rename. Beeps in a port since libraries and backups cannot be renamed.
S	Size sorting of files.
T	Type sorting of files (e.g., DIR, LIST, PROG, etc..).
U	Unsort, returns original file order after any kind of sorting. Removes also selections.
V	Version information as displayed in this screen shot.
W	(+/-) Select and go to next or previous item.
ALPHA	Find a file name after waiting for its first letter in ALPHA mode. Case-insensive search. If searching names starting with $ or other unusual symbols shift has to be used to print the chacacter. Press ALPHA twice in Filer 4 and 5.
TIME	Date&Time with running seconds. Disappears with the next key operation but ignores CANCEL.
.	(dot) Immediate return to HOME from anywhere,. also from a directory. This does not work in the built-in filer.
0,1,2	Immediate entry to ports 0, 1, or 2 from anywhere.
3	Immediate entry to Port3 (SD-card) in Filer5 provided a SD-card is plugged in. In Filer3 and Filer4 key 3 sets a Memory Browser which shows the contents of each ERAM half (Port1) and of the eight user flash banks as in the example screen shot. This includes also the deleted objects and those with a bad CRC, marked with D and C, respectively. Very useful feature: A deleted object can be recalled to the stack with the STO key. Referring to the screen shot at left, a HOME backup exists in flash bank D (highlighted) that has been deleted (D). No corrupted object is found and the flash bank still has 92 KB free. To exit the Memory Browser, press either CANCEL or the backspace key.
SPC	Works differently depending on whether in a directory or a port. In a directory (whicch may be HOME), a choose box is launched as shown in the screen shot. HIDE hides the selected files(s) in the current directory. It creates a nullnamed file displayed in the filer as ''...''´´ CHAR 3 which separates visibles from hiddens by putting the latter behind the nullname ´´ which contains a small dummy (character H by default). Hidden files work normally and invisible only in the VAR menu, hence are well protected against unintended overwriting. UNHIDE uncovers the selected files by putting them on top of the directory. If nothing is selected, just the scanned name will be unhidden. Note that anything can be stored in the nullname ´´ with the filer's STO function. Also the so-called Hidden directory has a nullname but this one is unvisible in filers. When pressing SPC in port (including the SD-card), a choose box with the items seen in the example screen is set. In Filer5 only the first two items since no extra saving of Port0 is needed. ARCHIVE archives the entire HOME directory including key assignments in the scanned port, with date and time appended. The screen-shot shows such a HOME backup name just above the menu. Date format depends on flag -42. The VAR key uncovers the time of creation. Since the card does not accept long names, a HOME backup name on the card contains only the day and month. For restoring, first press key T. This puts all candidates for RESTORE closely together. Then select the desired HOME backup and press RESTORE. Since Port0 is often lost in a system crash, item SavePort0 creates a Port0 backup in the scanned port (1,2 or 3) under the name 'PORT0', containing a list. Don't modify this list by hand. Item RestPort0 restores a scanned Port0 backup. More precisely, it adds to Port0 those objects from the backup not present in the current Port0. Filer5 does not contain these options anymore since one may save anything from the ports on the card.
ENTER	Enter the selected directory and leave the filer. Equivalent to running CHDIR at the end of the built-in filer menu and then leaving with CANCEL.

RCL appears in the menu. The TREE option is here on (backspace). In HOME or in a port, LeftArrow enters the TREE as well. XRECV has been replaced by the powerful option SD for data transfer to and from the SD-card. If being in a standard port,

copies the selected files to the card. If a library was selected, a directory LIBS is created on the card if not already present in which the library is stored. If being on the card,

copies the selected files to the port to be choosen in a choose box. If beeing in HOME or another directory,

may still do something different because from a directory files can be copied to the card with COPY. Hence, in this case

saves all standard ports on the card in one keystroke. This amazing function allows returning a defective unit to the dealer and keeping all data on a SD-card, including all libraries! No need for saving on a computer. Backup objects with long names (containing the space character) are not saved on the card since the card cannot handle these. This concerns in particular long named HOME backups. Note that these need not be tranfered to the card since dated HOME backups can directly be created on the card with SPC. Attention: In contrast to COPY,

never overwrites. A library on the card is always wrapped in a list but is automatically unpacked if returned to a standard port. If two objects have the same backup name in different standard ports, only the one with smaller port number is saved on the card. This concerns in particular different versions of the same library in different ports.

Filers

Simplifying and expanding the HP49G and HP49G+ built-in filers