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ZFILER HISTORY Version 1.1 Jan 9, 1993 Jay Sage 1. Text messages were gathered into a block in order to support language overlays as explained in my article in The Computer Journal. English and German versions are supplied with the initial release. 2. The CFG configuration file for use with ZCNFG was extensively overhauled. 3. The source code is now being released. Version 1.0q Jan 9, 1992 Rob Friefeld & Jay Sage 1. Added option to filter VIEW and PRINT output. If ON, the filter removes the high bit, then prints only alphanumerics, CR, and LF. If assembly option EXPTAB if false, TABS are also output. The filter setting may be toggled from the Options command. 2. ZFILER can remember all the file tags when it returns after a Z command or macro run. The file list is written to a temporary disk file (ZFILER.TAG, in a configurable directory), and automatically read back. This feature can be turned off, if desired, from the Options command. 3. Group Tag/Untag and Wild Tag/Untag may be separately set to work on the entire ring, or just from the file pointer. Group Reverse always works on the entire ring. Toggles are on Options list. List macros now soft tag files just like regular group macros. 4. The Options list is now 15 items long. These flags were previously saved with the file mask, so only 11 items could be reliably saved. They are now bit-encoded in the last two bytes of the shell stack entry. (The NOT USESTK assembly option has not been recoded to reflect this change. Its limits were long ago exceeded.) 5. Z33OPT are flag bytes copied from ZCPR to a local buffer, used for controlling password checking. Previous version was checking the wrong bits. Since the local buffer is loaded at runtime, it was moved to DSEG. Version 1.0p May 16, 1991 Rob Friefeld --- BUGS FIXED: 1. Copy to existing r/o file failed. The destination attributes were never checked if "Set Dest Att" option was false. 2. On disk full, partially copied file is closed before deletion so that disk space report is now correct. 3. If the ZEX batch file is located in a specific DU not on the path, ZEX won't find it. Although the MACROCMD: patch point could be altered to "ZEX DU:ZFILER", ZF will now do this automatically after creating the .ZEX file. As a result, the MACROCMD entry MUST use a 3 letter command name if you patch it to run something other than 'ZEX'. --- ALTERATIONS: 1. DINIT called on exit. 2. Installation option available to erase finished ZFILER.ZEX on shell run. You may want to set this flag after debugging your macro command file. 3. Clear screen on exit (EXITCLS) is config option now. 4. Group Tag and Group Untag operate from the file pointer to the end of the list, rather than on the entire list. (This is a restoration of something ZF used to do.) --- NEW: 1. ZF10P.CFG configuration file for use with ZCNFG.COM. Handles all the configuration except macro string installation. 2. Group Macro puts tagged file count into (configurable) user register #5 before running. The macro can then down count and take some additional action after it has run on each tagged file. The intended use for this is to create libraries of crunched files with one macro command. For example, the script 1 ! $d$u:;$!crunch $f M1:;reg m5;if reg 5= 0;$"Library DU ":; lput $"Library Name: " M1:*.* +1;era M1:*.?Z?;fi;$h: crunches tagged files to a fixed directory M1: (on the RAM disk), makes a library out of them (leaving room for 1 more file) with input for library name and location, then erases all the crunchettes. For consistency, single macros put a "1" count in the user reg. There is no code to enforce the 0..9 user register range, in case you want to use 18..31. (10-15 are reserved, 16-17 are used by other programs.) REG must be a Type3 or Type4 (or RCP) for the ZEX GO "$!" to run CRUNCH repeatedly. Version 1.0o September 21, 1989 Carson Wilson --- Implemented list capability for group macros. If a ZFILER.CMD script begins with a comma (before or after the leading "!" shell pause parameter), ZFILER will always expand the macro directly to ZCPR's multiple command line. In the case of a group macro, $P, $F, and $T parameters are expanded to a list of all tagged files, separated by the character following the leading comma. For example, the script 1 , !echo the tagged files are $F displays "THE TAGGED FILES ARE ", followed by a list of the tagged files separated by " " on the console (assuming ECHO is a valid ZCPR command). ZFILER then prompts for a keypress before returning. Please note that this macro buffers the entire list of tagged files to CP/M's command line buffer, which is only 125 bytes in length. The above command therefore normally causes a "Command too long" error if more than about 8 files are tagged, depending on the lengths of the tagged names. --- Made the escape character and the characters to quote with it when writing a group macro command to ZEX or SUBMIT files installable (see ZFCNFN.Z80 for details). Escape character is currently "$", and quoted characters are currently "$", "|", and "<", as required by ZEX version 5. --- It is now possible to answer ZFILER's "Login [DIR][:MASK] " prompt with ".<cr>" (same as ":<cr>") to log in all files in the current directory. Previously this logged in all files at user zero of the current drive. The Login command now also seems to accept ".afn" instead of ":afn". --- Shell bit set while waiting for user commands, then immediately reset when a command key is received. This should allow Bridger Mitchell's AT command scheduler RSX to interrupt ZFILER as it would the CCP while ZFILER is prompting for commands. --- Fixed bug which prevented any Group commands from operating when the configuration byte MACFLAG was patched to false. --- Removed code which attempted to use the ZCPR Environment to determine how many lines of text to display with the V command, as this was only partially implemented, resulting in difficulty on terminals with over 24 rows. Text lines now hard-coded to 22, so ZFILER should work on any terminal with 24 or more screen rows. --- Fixed small bug which caused "Public File Error" message to disappear. --- Control-I is now an alias for control-J (jump to file again), for use with terminal definitions (TCAPs) which define control-J as an arrow key. --- Idea for future versions: it would be very difficult to allow file ring sorting based on file dates (would need to store date stamps with ring, requiring major rewrite). It would be relatively simple to allow the Login and startup commands to accept and match files to a datespec, though... Version 1.0n March 20, 1989 Carson Wilson --- Added $* script parameter to clear the screen during, and rebuild it after a script prompt. Usage is $"$*..text.." Prompt text appears at the top of a cleared screen. --- In anticipation of the ZEX 4.0x, '$' and '|' are now the only characters which are quoted when ZFILER builds the ZFILER.ZEX file. If they appear in a ZFILER.CMD script these characters are quoted with a leading dollar sign when ZFILER.ZEX is built. All other characters are passed "as is" to the ZEX file. This means that you cannot use ZEX directives such as $1, |crlf|, etc. dynamically, but this was never the intention of the interface between ZFILER and ZEX - the idea was simply to provide multiple executions of a ZFILER command script. --- For efficiency ZFILER no longer resets disks under Z3PLUS. Version 1.0m January 24, 1989 Carson Wilson --- Copy and Move commands now work properly with Z3PLUS, and the current 12-hour time shows at the top of the screen under Z3PLUS. --- Path files conflicts are no longer reported under ZSDOS. This produced problems when users tried to backup directories along the path. ZSDOS public conflicts are still reported. --- Group Move and Group Copy error messages are now sustained until the user strikes a key, rather than disappearing immediately. --- Prompts in scripts may now contain control characters as "^x" where x is any character from @ to z. --- The dollar sign is now an "escape character" for script prompts, and can be used to include the $, ^, ", and ' characters in prompts. Examples: Script Result $"Enter name or $^C: " Enter name or ^C: $"Type $"//$" for help: " Type "//" for help: --- Move and Group Move now use the option menu selections when moving files instead of always copying file attributes. --- Cleaned up help screen. --- To save debugging time I have changed the default option menu settings to my preferences. Version 1.0l September 13, 1988 Carson Wilson --- Bugs in the Group Copy, Group Move, and Group Delete commands which occurred when the user aborted certain prompts with a control-C have been corrected. --- A bug which resulted in erratic behavior if ZFILER.CMD was not found was fixed. --- The unsQueeze command was removed to reduce program size. Since few new files are squeezed and UNCRUNCH now supports unsqueezing it seems preferable to export this function by calling UNCRUNCH with a ZFILER macro. An additional benefit of this technique is that a single command now may be used for both uncrunching and unsqueezing. ZFILER will still display and print squeezed files. --- ZFILER now performs consistently when invoked with ZCPR's GO or JUMP commands. Previous versions failed when more than one Z or macro command was used after invoking ZFILER with GO/JUMP. --- (DateStamper versions only). If a DateStamper (BDOS function 12) real- time clock is available, the current 12-hour time is printed to the left of the "ZFILER" name at the top of the screen. --- If running under ZSDOS or ZDDOS, disk resets are skipped for all commands except Space. This considerably increases performance on floppy disk systems. --- The environment address is loaded from location 109 at run time for compatibility with ZCPR 3.0 systems. --- The performance of the Delete, Copy, Move, Archive, and Rename commands has been improved by minimizing disk accesses. --- The Space command now resets individual drives. This is more efficient and makes the S command practical with virtual drives. --- The Space and Filesize commands now work properly after printing files. --- ZFILER now checks for and reports Public or Path conflicts when Copying, Renaming, Moving, and Archiving files under ZSDOS. In addition, files created with Copy/Move/Archive are always set to Private (high bit of f2=0) to avoid possible ZSDOS Public conflicts. --- Single file View no longer affects file tags. --- Single file Copy or Move no longer skip to the next file afterwards. --- (DateStamper versions only). If available, Copy/Move/Archive use ZSDOS's more efficient Get Stamp and Set Stamp function calls to preserve file datestamps across copies. The older method of datestamping is retained for non-ZSDOS systems. --- Rename error messages no longer disappear before they can be read. Version 1.0k May 3, 1988 Jay Sage --- Fixed some minor bugs in the code (slipup of using a DB where I intended a DS to allocate space for longer strings to be patchable) Version 1.0j May 1, 1988 Jay Sage --- Improved flexibility of group macro operation by putting three items in the configuration page. The string MACROCMD is a null- terminated string with the group macro command line. The string MACLEADSTR is a null-terminated string of characters to be written at the beginning of the group macro batch file (ZEX or SUBMIT). The string MACROFCB marks the file control block for the file with the group macro commands. --- Fixed a bug in the expansion of file names in macro parameters. The code was not masking out file attributes. It happened that this did not matter except for blanks with attributes set, but now the code is correct. --- There is an additional configuration option (last byte in CONFIG section just before OPT string) that allows file names to be shown in lower case. Set the byte to FF for upper case, 0 for lower case. Version 1.0i April 14, 1988 Jay Sage --- The source code to 1.0h was lost in a disk crash. The features have been recreated. The operation with GO or JUMP has been improved. --- The shell stack entry now includes the explicit directory where the file was found if Z33 or later is running. Version 1.0h September 16, 1987 Jay Sage --- Fixed bug in the code for logging in the displayed directory when the Z command is executed. It was not working correctly under standard ZCPR30 or backgrounder. --- Added options to control how the ZFILER.CMD macro file is located. A choice on the option menu allows one to turn on or off searching of the entire path (including current directory). If that option is off, either the root directory or a specified directory will be used, depending on the configuration of the program. --- ZFILER can now be reexecuted using the GO command. I borrowed a trick from Al Hawley. When invoked originally, ZFILER checks the name used to invoke it. If the name is 'GO', then a default name stored in an internal buffer is used. Otherwise, if the name is copied to that buffer from the external FCB. I believe this change will allow ZFILER to be reconfigured using the 'O' command and then cloned using SAVE. --- A more extensive user configuration file has been provided which comprises sections of ZFHDR.Z80 (the definitions file) and ZFMAIN.Z80 (the beginning of the main code). As before, reconfiguration can be carried out by editing ZFCNFH.Z80 and assembling it to a HEX file. Then "MLOAD ZFNEW=ZF0LD.COM,ZFCNFH" will install the changes. Version 1.0g August 23, 1987 Carson Wilson --- Reverse video, dim, or '_' are now used on the status line to display all current file attributes. 'r' read-only tags were interfering with the tagging commands and are no longer used. --- Corrected bug preventing view/unsqueeze of squeezed system files. --- Corrected bug causing squeezed read-only files to be unsqueezed as system files when copying attributes. --- Made invalid command display show actual command. --- Removed ZFILER command prompt on exit to avoid confusion between system and ZFILER's 'Z' command. --- Fixed initial help screen from command line. --- Added space before 'OK' after copy/unsqueeze. Version 1.0f June 12, 1987 Jay Sage --- Added rudimentary group macro capability by having ZFILER construct and invoke a ZEX script. Version 1.0c April 27, 1987 Jay Sage --- Made changes for compatibility with ZCPR33. Now on manual invocation ZFILER returns to the command processor if ZEX is running so that ZEX can continue to supply commands even if there are no more commands on the current command line. Version 1.0b January 13, 1987 Jay Sage --- Added DateStamper support. Now on file copies and moves, the time and date stamp of the source file is carried to the destination. --- Modified handling of directories with 'L' (or 'N') command. The code now respects the DUOK flag in the environment. If it is set, then any attempt to log in a directory is checked against the maxdrive and maxuser values in the environment. If the request passes that test, then the directory is logged in even if it had been specified using a DIR form and even if a password is associated with it. If the requested directory is beyond the maxdrive/maxuser range or if DUOK is not set, then the named directory register is checked. Passwords are checked as needed using improved code (shorter and more accurate). --- Added small bit of code to the ZFILER initialization to change the JP opcode at 100H to RET so that ZFILER cannot be rerun using the "GO" command (this has bad consequences, since the shell stack entry then would have the command "GO" stored in it!). Version 1.0a January 1, 1987 Jay Sage --- IMPORTANT CHANGE: To make ZFILER consistent with other script processing programs, the default parameter designation character has been changed from '%' to '$'. The parameter '$', an alternate for 'P' (completed Pointed-to-file spec: du:name.typ) was therefore eliminated. These changes will require editing of any VFILER.CMD file when converting to ZFILER.CMD (the macro file used by ZFILER). --- Modified the way the shell stack entry is used. It now keeps both the original directory and the requested directory on the stack. This has two major advantages. By keeping the original directory on the stack, on exit with the 'X' command ZFILER can return to the directory from which it was originally invoked no matter how many other directories have been logged in by use of the 'Z' command or a macro. Keeping the requested (displayed) directory on the shell stack avoids the problem with a passworded directory of having to reenter the password every time ZFILER returned from a macro or 'Z' operation. --- Added feature with 'Z' command to allow avoidance of the "Strike any Key" message on return to ZFILER. If the command line entered with the 'Z' command begins with a space, then shell waiting will be disabled. --- Fixed a bug caused by the GA command. Once that command was used, an archiving flag was set and never cleared. A later GC command then used the group-archive prompting options instead of the group-copy options. This flag is now reset before all group operations. --- Added option on file copy and unsqueeze functions to allow the destination file attributes to be set to those of a file that is being overwritten. If there is no such file and the attribute setting option is engaged, then the source file attributes will be used. --- Changed code for file viewing so that scrolling will stop at the end of a file (carriage return and space will not cause the next file to start). Only control-X or control-C will be effective at the end of file. Also added control-Z option to go straight to the end of file without paging. --- Changed the code that allows interruption of group operations so that a carriage return will not cause an abort (many users answer some prompts that require no return with a return and found that group operations worked only on the first file). Any character other than carriage return will abort mass operations. --- Made it possible to get the macro help screen by pressing the leadin character a second time in response to the 'Macro' prompt (this is much easier and more natural than entering the '#' command). --- Fixed a bug in the macro help display that was echoing control characters to the screen. These are now filtered. One can now enter ESC ESC to see the macro help screen and a third ESC to return to the file display. --- Added ^J command to jump to next file that matches the last mask specified in a "J" command. This allows one to jump easily to the second or third file that matches a simple file spec. --- Fixed bug in "M" and "GM" commands that allowed source file to be deleted even when copy had not been performed. --- Added "GR" group reverse function to reverse file tags. Tagged files become untagged; untagged files become tagged; and soft-tagged files remain soft-tagged. --- Cleaned up log command ("L" or "N"). Removed special handling of answer "x" for directory name (no longer needed) and changed error handling code. --- Added a configuration option to automatically log in the displayed directory for the "Z" command if the user number is less than 16. If this option is configured in, then the disk system is reset before the command line is run (this is the disadvantage of using this option). --- Made rename command preserve all file attributes. --- Added options to copy attributes with files and to always set the archive attribute in the destination file. If the file is being moved, the attributes are always copied and the archive bit is left as it was; if the file is being unsqueezed, the attributes are not copied and the archive bit is set according to its option setting. ----------------------------------------------------------------------------- See the VFHIST.DOC file in VFILER Version 4.1 for the history of the development of VFILER.