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|May the source be with you, but remember the KISS principle ;-)|
I modified Ctrl-O description to account for this possible implementation bug.
Reverse engineering and generalizing basic functionality of OFM managers is a difficult, non-rewarding, but necessary work. I did it because I am afraid about possible disappearance of a set of valuable ideas invented by various talented implementers. Many of them like the Norton Commander creator John Socha and FAR creator Eugene Roshal participated in the OFM design only for a short time (1994-1989 for John Socha, 1997-2001 for Eugene Roshal) and then completely abandoned the field. Actually, I have a feeling that John Socha was very surprised when he read one of the versions of my The Orthodox File Manager(OFM) Paradigm eBook :-).
Some of historically important OFM managers are now belong to abandonware (all Norton line of products, Volkov Commander, DN to name just a few). Some are now long gone and difficult to find. And not all of them were open source. I am afraid that without reflection in the literature in a way reusable by subsequent generation of programmers those ideas and unique feature invented by previous generation of OFM developers will be gone and need to be reinvented again, may be in crippled form.
I have a huge advantage to observe the field almost from the very beginning and working with several different OFM during my more then 20 years experience with this type of file managers. At the same them the amount of time and effort I was able to spend on this work is limited (actually the recent revision happened only due to a week long isolation produced by tropical storm Sandy as NJ was hit really hard;-) So the result in some parts are raw. But I think that they can provide a solid foundation to additional work and hope my efforts to create those standards will be useful for new OFM implementers including those who are attracted to existing open source projects like FAR and Midnight Commander. Useful because to understand the key ideas is much easier it you put all your knowledge into some framework. This standard and two subsequent standards (OFM2004 and OF2012) are imperfect, but useable framework of analyzing functionality and enhancing exiting OFM projects as well as can save time for those who try to implement a new OFM, especially in scripting languages such as Python, Perl or Ruby.
I try to update the Orthodox File Managers Standards once in five year with the last update made in Oct-Nov. 2012. to reflect progress in OFM implementations and changes in the field. This one (OFM1999) was the first and is now in its third revision (version 3.0). It was followed by the OFM2004 (advanced OFM implementations) and OFM2012 (Cutting Edge Features of Orthodox File Managers). Actually the last revision of OFM1999 was done after seven years after the second, not five due to various circumstances and the workload of the author.
For inclusion into this section of the standard the feature needs to be present either in MC (as a leading Unix-based implementation), FAR or NC 5.0 or be consistently implemented in at least two other major OFM implementations (for example XTree virtual file system is consistently implemented in Total Commander and Northern Captain with the hotkey binding Ctrl-B) and have stable semantics. Hotkey assignments listed below can be different from recommended, if key remapping capability is implemented in a particular OFM, otherwise 0.66 coefficient is used if semantically operation in implemented correctly. If the weight is not stated it should be assumed to be 3)
The Tab key should change active panel to passive and passive to active;
Ctrl-\ key should go to the root of logical drive (Windows), or show the list of directory favorites (Unix)
Ctrl-PgDn and Ctrl-PgUp move to the upper (current subdirectory) and lower level (parent i.e. CD ..) directories; in Unix Ctrl-ArrowLeft and Ctrl-ArrowRight can be used instead. The importance of this feature is that it permit exit from several level of directories without changing the command line that might contain partially typed command. This way you can assemble command line while traversing directory for its components, for example file names. If mouse clicks on directory can be used instead for the same purpose this feature can be judged as compatible.
Alt-F1 and Alt-F2 (Ctrl_Alt-F1/F2 In Windows should produce the list of logical drives and allow selection of any of them. In Unix should produce the list of mount points (df -k) and allow to selection any of them.
Ctrl-L should switch to the information panel. Information panel should provide at least statistics about the current directory and current drive. If directory description file (by default file dirinfo in Windows implementations) is available it should be displayed as well (Default for dirinfo descriptions in UNIX-based implementations should be README file). If multiple files match user-defined regular expression specified in dirinfo, the first should be displayed. The file that serve as dirinfo file should be user-definable with the possibility to define it with regular expression (this way multiple files can be defined, if desirable).
Ctrl-Q should switch to quick view in which movement of cursor on the active panel changes the
view of the file in the passive panel.
F1 -- should not only invoke hypertext help, it should invoke help on any item of the toolbar and any
item of tool bar menus. The help should be context sensitive. HTML based format is preferable. Context help should
be implemented: if some dialog is opened the help should be about this particular dialog, not the general help tree.
F2 -- availability of user menu or equivalent (start menu). Should provide the possibility to
run user shell scripts with substitution of macro variables from the panels. Each item of the menu should be activated
by its own letter (hotkey). Format of the macro variables is not defined in this standard but following Midnight
Commander conventions is recommended.
F3 -- should invoke built-in viewer
Alt-F3 and Alt-F4 should select alternative viewer and editor. There should be a configurable option is Command menu to specify this external viewer and editor
Optional: Additional option in Options menu to specify invocation of built-in viewer and editor in the panel mode instead of full screen mode. At this mode all command line insertion capabilities should be redirected to editor (Ctrl-[, Ctrl-], Ctrl-F, etc). switch primary and alternative viewer, so that alternative viewer/editor can be selected via F3/F4 and primary (built-in) via Alt-F3 and Alt-F4.
F5 -- should copy/move subtrees if applied to directories; Should work with selected files and permit specifying "quick target" via F10.
The directory search panel (find folder). Activated by Alt-F10. Also should be present as an option in the top menu as Command/Find folder in Far, Command/Directory tree in mc, ). This panel should instantly provide a quick search window. It should be also accessible from copy/move dialogs (via F10) as it is often used not only for the "directory completion" and traversing of the tree, but also for the quick selection of the target directory for copy/move operations. Here for example is how FAR NCD tree looks like:
Note: NC it was also possible to shrink panels to 50% providing visibility of shell execution as well as subset of files in panels. This feature was never implemented in most OFMs and as of October 2012 removed from the minimal standard.
Note: Should be able to work in full screen mode and in
panel mode (at least in quick view).
Optional: User should be able to invoke the viewer in the panel mode not only in quick view, but also via some hotkey (for example Alt-F3). This is very useful if 132 screen mode is used.
- Optional: mouse click on the current line number should open panel to specify line number to go.
Optional: User should be able to invoke the editor in the panel mode via some hotkey (for example Alt-F4).
This is very useful if 132 symbol terminal width is used. In panel mode all command line insertion hotkeys should
be redirected to the current position of the cursor in editor (Ctrl-[, Ctrl-], etc)
Ctrl-L should switch to the information panel. Information panel should provide at least information about one special file defined in Options/Infopanel Settings submenu of the top menu. The default is dirinfo in Windows implementations and README for Unix implementation, or both. If one of defined dirinfo files is available in the directory it should be displayed in the opposite panel. There should be the possibility to define it with regular expression (this was multiple files can be defined, if desirable). Several file can be defined, separated with semicolons. If multiple files are present only the first is displayed. Information panel consists of two parts upper (that is optional) and lower.
|OFM1999 score (average of all 21 tests)||NC||VC||DN||FAR||
|1||Interface look & feel||Weight||NC||VC||DN||FAR||
|1.1||Symmetrical panels with user definable fields||3||0.50||1.00||1.00||1.00||1.00||0.50||1.00||1.00|
|1.2||Information line under each panel||3||1.00||1.00||1.00||1.00||0.00||1.00||1.00||1.00|
|1.3||Top menu with access to configuration and commands without shortcuts||3||1.00||1.00||1.00||1.00||1.00||1.00||1.00||1.00|
|1.4||Bottom menu changes on Ctrl, Alt, Shift and operations F3-F7||3||1.00||1.00||1.00||1.00||0.00||1.00||0.00||1.00|
|1.5||Ability to position panels both horizontally and vertically||3||0.00||0.00||1.00||0.00||1.00||1.00||1.00||0.00|
|1.6||Command window should be present by default in minimized form, as a single line with shell prompt.||3||1.00||1.00||1.00||0.00||1.00||1.00||1.00||1.00|
|1.7||Ability to hide left or right or both panels exposing terminal shell screen should be present||3||1.00||1.00||1.00||1.00||0.00||1.00||0.00||1.00|
|1.8||Ability to shrink both panels 50% exposing shell terminal screen should be present||3||1.00||1.00||1.00||1.00||0.00||1.00||0.00||0.00|
|1.9||Separate menu of settings for left and right panel||3||1.00||1.00||1.00||1.00||0.00||1.00||0.00||0.00|
|2||Navigational and basic hot keys compatibility||Weight||NC||VC||DN||FAR||
|2.2||The Tab key||3||1.00||1.00||1.00||1.00||1.00||1.00||1.00||1.00|
|2.3||Ctrl-\ go to the root of logical drive(Windows), or show the list of favorites (Unix)||3||1.00||1.00||1.00||1.00||1.00||1.00||1.00||1.00|
|2.6||Alt-letter should activate instant search||3||1.00||1.00||1.00||1.00||1.00||1.00||1.00||1.00|
|2.7||Alt-F1, Alt-F2 (list of drives or mount points)||3||1.00||1.00||1.00||1.00||1.00||1.00||0.00||1.00|
|Comments: TotalCmd Ctrl-U implementation in contains a bug.|
|3||Shell Window compatibility||Weight||NC||VC||DN||FAR||
|3.1||Tile windows manager compatibility||5||1.00||1.00||1.00||1.00||0.50||1.00||0.50||1.00|
|3.2||Command line compatibility||5||0.50||1.00||1.00||1.00||0.50||1.00||1.00||1.00|
|3.4||Terminal session look&feel compatibility.||3||1.00||1.00||1.00||0.75||0.00||1.00||0.75||1.00|
|3.5||Change of directory in shell terminal windows leads to change of active panel directory on return to panel view||3||1.00||1.00||1.00||1.00||0.00||1.00||0.00||1.00|
|3.6||Ctrl-F1/Ctrl-F2 compatibility (panel hiding)||3||1.00||1.00||1.00||1.00||0.00||1.00||0.00||1.00|
|3.7||50% vertical panel shrinking||3||1.00||1.00||1.00||1.00||0.00||1.00||0.00||0.00|
|4||Compatibility of F1..F10 and other F-key operations||Weight||NC||VC||DN||FAR||
|4.1||F1 - hypertext help availability||3||1.00||1.00||1.00||1.00||1.00||1.00||0.50||0.50|
|4.2||F2 -- user (start) menu invocation||3||1.00||1.00||1.00||1.00||1.00||1.00||1.00||1.00|
|4.3||Invocation of viewer and editor(F3/F4)||3||1.00||1.00||1.00||1.00||1.00||1.00||1.00||1.00|
|4.4||Copy operation (F5)||3||1.00||1.00||1.00||1.00||1.00||1.00||1.00||1.00|
|4.5||Move operation (F6)||3||1.00||1.00||1.00||1.00||1.00||1.00||1.00||1.00|
|4.6||Create directories (F7)||3||1.00||1.00||1.00||1.00||1.00||1.00||1.00||1.00|
|4.8||F9/ F10 - main menu activation/exit||3||1.00||1.00||1.00||1.00||1.00||1.00||1.00||1.00|
|5||Tree view panel compatibility (Ctrl-T)||Weight||NC||VC||DN||FAR||
|5.1||Copy files to the tree target||1||1.00||0.00||0.00||1.00||1.00||1.00||0.00||1.00|
|5.2||Movement of cursor does not affect passive panel. Enter or mouse click changes directory on passive panel||1||0.00||0.00||1.00||1.00||1.00||0.00||1.00||1.00|
|5.3||Quick search in tree mode. Ctrl-Enter in quick search mode moves to the next file with the same prefix||3||1.00||1.00||1.00||1.00||1.00||1.00||___---__-----||0.00|
|5.4||F5/F6 compatibility from tree view to passive panel.||3||1.00||1.00||1.00||1.00||1.00||1.00||0.00||0.00|
|5.5||Gray+/Gray- navigation (same level navigation)||2||0.00||0.00||0.00||1.00||0.00||0.00||0.00||0.00|
|5.6||Quick view in tree navigation (Ctrl-Q)||2||0.50||0.50||0.50||1.00||0.00||0.00||0.00||0.00|
|5.7||Ctrl-Enter copy directory to the command line||2||0.00||1.00||1.00||1.00||0.00||0.00||0.00||0.00|
|5.8||F4 in treeview mode should edit attributes||2||0.00||0.00||0.00||1.00||0.00||0.00||0.00||0.00|
|5.9||Navigation keys such as Home/End and PgUp/PgDown should work.||2||0.00||1.00||1.00||1.00||1.00||1.00||0.66||1.00|
|6||Directory search panel (NCD panel)||Weight||NC||VC||DN||FAR||
|6.1||Alt-F10 invoke directory tree starting from current||3||1.00||1.00||0.00||1.00||1.00||1.00||0.50||1.00|
|6.2||Refocusing on the current directory(F5)||1||0.00||0.00||0.00||1.00||0.00||0.00||0.00||0.00|
|6.3||Rescanning of the disk(F2)||1||1.00||1.00||1.00||1.00||1.00||1.00||0.00||0.00|
|6.4||Quick search input line at the bottom of this panel||3||1.00||1.00||0.00||1.00||1.00||1.00||0.50||1.00|
|6.5||Ctrl-Enter gets the next entry with the same prefix||2||1.00||1.00||0.00||1.00||1.00||1.00||0.00||1.00|
|6.6||Gray+/Gray- navigation (same level navigation)||2||1.00||1.00||0.00||1.00||1.00||1.00||0.00||0.00|
|6.6||Copy/Move and FindFile target selection via F10||2||1.00||0.00||0.00||1.00||1.00||1.00||0.00||0.66|
|7.1||Ins selects/deselect file (toggle)||3||1.00||1.00||1.00||1.00||1.00||1.00||1.00||1.00|
|7.2||Gray+/Gray- using regular expressions||3||1.00||1.00||1.00||1.00||1.00||1.00||1.00||1.00|
|7.3||Gray+/Gray- operations should be persistent||3||1.00||1.00||1.00||1.00||1.00||1.00||1.00||1.00|
|7.4||Gray* inverts the current selection||3||0.00||1.00||1.00||1.00||1.00||1.00||1.00||1.00|
|7.5||Named (savable/restorable) selection -- projects (Total Commander)||3||0.00||0.00||1.00||0.00||1.00||0.00||0.00||0.00|
|7.6||Select by file type, date range or custom script (FindFile-style selection)||2||0.00||0.00||0.00||0.00||1.00||0.00||1.00||0.00|
|7.7||Selections history should be available and browsable||2||0.00||1.00||0.00||1.00||0.00||0.00||0.00||1.00|
|7.8||Ability to separate individual regex with ";"||2||0.00||1.00||0.00||1.00||1.00||1.00||0.00||1.00|
|7.9||Extended or Perl-style regular expressions support as an option||2||0.00||1.00||0.00||0.00||0.00||0.00||0.00||0.00|
|8||Quick view compatibility||Weight||NC||VC||DN||FAR||
|8.1||Build-in viewer should be invoked for all files.Depending of type files are displayed either in text view or hex view.||3||1.00||0.00||1.00||1.00||1.00||1.00||0.50||0.00|
|8.2||For archive basic stats and dirinfo file should be displayed (TOC is no dirinfo)||3||0.50||0.00||0.00||0.00||1.00||0.00||0.00||0.00|
|8.3||For directories basic stats and dirinfo file should be displayed (list of files if no dirinfo)||3||1.00||0.00||1.00||1.00||1.00||1.00||0.50||0.00|
|8.4||For executable header should be shown||3||1.00||0.00||0.00||0.00||1.00||1.00||0.00||0.00|
|8.5||If there are selected files exit from internal viewer in info panel should display the next highlighted file, not the next file||3||1.00||0.00||0.00||1.00||0.00||0.00||0.00||0.00|
|8.5||In tree view Windows File Explorer mode should be implemented||3||0.00||0.00||0.00||0.00||0.00||0.00||0.00||0.00|
|9||Macro recorder compatibility||Weight||NC||VC||DN||FAR||
|9.1||Avalability for both panel view and built-in editor||3||0.00||0.00||0.00||1.00||0.00||1.00||0.50||0.00|
|9.2||Ability to edit macros||3||0.00||0.00||0.00||1.00||0.00||1.00||0.50||0.00|
|9.3||Availability of internal macrolanguage||3||0.00||0.00||0.00||1.00||0.00||0.00||0.50||0.00|
|9.4||Macro can overwrite standard key assignments||3||0.00||0.00||0.00||1.00||0.00||0.00||0.50||0.00|
|10.1||Reversible implementation of at least View( F3 and edit (F4), jump back and forth||3||1.00||1.00||1.00||1.00||1.00||1.00||1.00||1.00|
|10.2||File filter: Unix find search capability should be supported||3||0.00||0.50||1.00||0.50||1.00||0.50||1.00||0.50|
|10.3||Ability to search by content (like in grep)||3||0.00||0.00||1.00||0.50||1.00||1.00||0.00||0.00|
|10.6||The ability to select start directory from the tree search panel (F10 in search menu)||2||1.00||0.00||0.00||0.00||0.00||0.00||1.00||0.00|
|Comment: VC 5.0 alpha 4 does not implement FileFind feature. VC 4.01 functionality was assumed instead|
|11||Command line execution compatibility||Weight||NC||VC||DN||FAR||
|11.1||The ability to view results of shell command execution||3||1.00||1.00||1.00||1.00||0.00||0.00||1.00||1.00|
|11.2||Key movement compatibility on the command line||3||1.00||1.00||1.00||1.00||1.00||1.00||n/a||1.00|
|11.3||History of commands.||3||1.00||1.00||1.00||1.00||1.00||1.00||1.00||1.00|
|11.4||Editing of history||2||0.00||1.00||0.00||1.00||0.00||0.00||1.00||1.00|
|11.5||Command completion feature||2||0.50||1.00||1.00||1.00||1.00||0.00||1.00||1.00|
|11.6||Change of the current directory via cmd command changes the active panel directory||3||1.00||1.00||1.00||1.00||1.00||1.00||1.00||1.00|
|11.7||Macrovariables extension of typed commands||2||0.00||1.00||1.00||0.00||0.00||0.00||1.00||1.00|
|11.8||Key equivalent of important macrovariables (Ctrl-F, Ctrl-Enter, Ctrl-[ and Ctrl-]);||3||0.00||1.00||0.66||1.00||1.00||1.00||0.66||1.00|
|12||Sorting and filtering file and directories in panel||Weight||NC||VC||DN||FAR||
|12.1||NETSU sorting orders||3||1.00||1.00||1.00||1.00||1.00||1.00||1.00||1.00|
|12.2||Directories first option||3||1.00||1.00||1.00||1.00||1.00||1.00||0.66||1.00|
|12.3||Changing sorting order by the mouse click on headers||3||0.00||0.00||0.00||0.00||1.00||1.00||1.00||0.00|
|12.4||Sorting Groups should be available, for example (htm|html|shtml) as one group.||1||0.00||0.00||0.00||1.00||0.00||0.00||0.00||0.00|
|12.5||File panel filter definition capability (Ctrl-I)||3||1.00||1.00||1.00||1.00||1.00||1.00||1.00||1.00|
|12.6||Ability to name filters and save restore named filters||3||0.00||0.00||0.00||1.00||0.00||0.00||0.00||0.00|
|13.1||Hotkey and the label for each script||1||1.00||1.00||1.00||1.00||0.50||1.00||1.00||1.00|
|13.2||Hierarchy of user menu files (local/user/global)||1||1.00||1.00||1.00||1.00||0.50||1.00||1.00||1.00|
|13.5||The ability to use macrosymbols||1||1.00||1.00||1.00||1.00||1.00||1.00||1.00||1.00|
|14||Additional file commands compatibility:||Weight||NC||VC||DN||FAR||
|14.6||File case conversion||2||0.00||0.00||0.50||1.00||1.00||0.50||1.00||1.00|
|15||Association management compatibility (extensions menu)||Weight||NC||VC||DN||FAR||
|15.2||Internal editable file that take precedence over system associations||1.00||1.00||1.00||0.50||0.50||0.00||1.00||1.00|
|15.3||Hierarchy of association files (global/user)||2||0.00||0.00||0.00||0.00||0.00||0.00||0.00||0.00|
|15.4||Ability to specify actions for View, Edit and Enter operations in the same file||2||0.00||0.00||0.00||1.00||0.50||0.00||1.00||1.00|
|15.5||Usage of regex in associations||2||0.50||0.50||0.50||1.00||0.50||0.50||1.00||1.00|
|15.6||Ability to use the type of the file instead of file name (as returned by Unix file command)||2||0.00||0.00||0.00||0.00||0.00||0.00||1.00||0.00|
|15.7||Macrovariables in associations||2||0.50||0.75||0.75||0.75||1.00||0.50||1.00||1.00|
|16.1||Simple attributes comparison||2||1.00||1.00||1.00||1.00||1.00||0.00||1.00||1.00|
|16.2||Comparison rules/filters equvalent to search||2||0.00||0.00||0.00||1.00||1.00||0.00||0.00||0.00|
|16.3||Strong comparison (by content)||2||0.00||0.00||0.00||1.00||1.00||0.00||0.00||0.00|
|16.4||Option to ignore date of creation and other data stamps (important for FTP VFS)||2||0.00||0.00||0.00||1.00||1.00||0.00||0.00||0.00|
|16.5||Synchronize option or command||2||0.00||0.00||0.00||1.00||1.00||1.00||1.00||1.00|
|17.1||End should go to the end of the file; Home to the beginning of the file;||3||1.00||1.00||1.00||1.00||1.00||1.00||1.00||1.00|
|17.2||Wrap/unwrap feature (F2) and shift left or right||3||1.00||1.00||1.00||1.00||1.00||1.00||1.00||1.00|
|17.3||The ability to view the terminal screen||3||1.00||1.00||1.00||1.00||1.00||1.00||1.00||0.00|
|17.4||Search for regular string or regex (F7) and to repeat search (Shift-F7)||3||1.00||1.00||1.00||1.00||1.00||1.00||1.00||0.50|
|17.5||F3 exits the viewer||2||0.00||0.00||0.00||1.00||0.00||0.00||1.00||1.00|
|17.6||+ should go to the next file, - to prev||3||0.00||0.00||0.00||1.00||1.00||0.00||0.00||0.00|
|17.7||Bottom menu changes if Ctrl or Alt key is pressed||2||1.00||1.00||1.00||1.00||0.00||1.00||0.00||0.00|
|17.9||Ability to go to specific line number and specify offset in percents||2||0.00||0.00||0.00||1.00||0.00||0.00||1.00||0.00|
|18.1||Look and feel||3||1.00||1.00||1.00||1.00||0.00||1.00||1.00||1.00|
|18.3||Windows style block selection||3||1.00||1.00||1.00||1.00||0.00||1.00||1.00||1.00|
|18.4||Go to a line number (Ctrl-G).||3||0.00||1.00||1.00||1.00||0.00||1.00||1.00||1.00|
|18.5||Hotkey for finding matching bracket||3||0.00||0.00||0.00||1.00||0.00||0.00||1.00||0.00|
|18.8||Basic keys compatibility||3||0.00||0.00||0.00||1.00||0.00||1.00||1.00||1.00|
|18.9||Editor user menu and %b macrovariable||3||0.00||0.00||0.00||1.00||0.00||0.00||1.00||0.00|
|19||Archive virtual file system||Weight||NC||VC||DN||FAR||
|19.1||Viewing Archive VFS like regular directory||2||1.00||1.00||1.00||1.00||1.00||0.00||1.00||1.00|
|19.2||Compress/extract directories and file into/from archive||0.50||1.00||1.00||1.00||1.00||0.00||1.00||1.00|
|19.3||Shift-F7 creates archive||0.00||1.00||1.00||1.00||1.00||1.00||1.00||1.00|
|19.4||Support of ZIP, GZIP, TAR, ISO and RAR||2||0.50||0.50||1.00||1.00||1.00||0.00||1.00||1.00|
|20||History and favorites compatibility||Weight||NC||VC||DN||FAR||
|20.1||Command history (in panel view) should be available both via hotkey (Alt-F8)||2||1.00||1.00||1.00||1.00||1.00||1.00||1.00||1.00|
|20.2||Browsable history of commands in command line and all dialog boxes||2||0.50||0.50||1.00||1.00||0.50||1.00||1.00||1.00|
|20.3||History invocation on mouse click on [^] or Ctrl-Up||2||0.00||0.00||0.00||1.00||1.00||1.00||1.00||1.00|
|20.4||In all dialogs (For example Mark/Unmark dialogs), as well as history view screens like visited directories, viewed edited files, etc it should be scrollable with mouse wheel (FAR)||2||0.00||0.00||0.00||1.00||0.00||0.00||0.00||0.00|
|20.4||Visited directories history (folder history)||2||0.00||0.00||0.00||1.00||0.50||0.00||0.00||1.00|
|20.5||Viewed and edited files history||2||0.00||0.00||0.00||1.00||0.50||0.00||0.00||1.00|
|20.7||Ability to panelize history of visited files (hotlist)||2||0.00||0.00||0.00||0.00||0.00||0.00||1.00||0.00|
|21||Infopanel and infoline compatibility||Weight||NC||VC||DN||FAR||
|21.1||Ctrl-L should switch to the information panel||2||1.00||1.00||1.00||1.00||0.50||0.00||1.00||1.00|
|21.2||Upper part should provide one or two lines basic statistics about the directory||2||1.00||1.00||1.00||1.00||1.00||0.00||0.00||1.00|
|21.3||Lower half should display so called "file description"||2||0.00||1.00||1.00||1.00||0.00||0.00||0.00||1.00|
|21.4||If infopanel is made active with Tab, all F-keys should be applicable and process the dirinfo file as a source.||2||0.00||1.00||1.00||1.00||0.00||0.00||0.00||1.00|
|21.5||If there is no file corresponding to regular expressions in infopanel definition additional information about the system should be displayed.||2||0.00||1.00||1.00||1.00||0.00||0.00||0.00||1.00|
|21.6||For directories you should be able to view dirinfo file in full screen by pressing F3 key||2||0.00||0.00||0.00||1.00||0.00||0.00||0.00||9.00|
|21.7||Infoline at the bottom of the panel should display file name (or "overflow" for long names) and additional (custom) attributes||2||0.50||1.00||1.00||1.00||0.00||0.75||0.75||1.00|
|21.8||Extension menu definable infoline attributes similar to custom template of columns for panel||2||0.00||0.00||0.00||0.00||0.00||0.00||0.00||0.00|
|OFM1999 score (average of all 21 tests)||NC||VC||DN||FAR||
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