;v1.7a	VERY minor tweaks to Gisbert's latest significant rewrite! (24 Oct 89)
;	(mainly because I'm still figuring out some of the logic!)
;	That's one tricky file name parser!
;	- Removed old version numbers (earlier than v1.7)
;	- Seems to work, so deleting the big chunks of commented-out code.
;	- Why do you put variable names in brackets, Gisbert?
;	  I do that ONLY when I'm using that variable (a word) as a
;	  pointer .. that way it jumps out at me.
;	  Compiler's don't seem to mind!
;	- Re-tabified (again .. sigh .. doesn't TASM have an ASCII 9 tab?
;
;	Ain't this international joint hackery fun?
;	Toad Hall

;v1.7	Another round from Bonn (20 Oct 89):
;	- fixed a bug in ZIP file name parsing: wouldn't accept a parent
;	  dir in path ('..\blah'), nor dirs including .TYPEs (WHO uses those??)
;	- leave .TYP of zip file alone if specified on command line; why force
;	  it to ZIP?? (Assuming the user knows what she does.)
;	- David's complaint about missing file name expansion routines pitied
;	  me; so here's neat parsing, and the way DOS always should have worked:
;	  'a*d' will match 'ad' and 'abd' and 'abcd' but not 'a' or 'ab'...;
;	  'a?d' will match 'abd' but not 'ad'. Side effect: 'foo*' will
;	  match 'foo' and 'foo.bar' - period is just an ordinary char.
;	  This applies to ZIP members only, not to ZIP file names! (Could
;	  be done easily, though. Too lazy for now. See comments in Find_ZIP.)
;	  Thanks to Gunter Rademacher for a fine algorithm.

;v1.6b  Back at Toad Hall ... (28 Sep 89)
;	- Removed old commented-out code (via v1.5, v1.6, v1.6a changes).
;	- NICE ideas in v1.6a  .. attaboy, Gisbert!
;	- No significant changes .. just cleaned up, making a "formal"
;	  release from Toad Hall.
;	- Suppose we oughtta put in yet ANOTHER cmdline switch (-c or
;	  something) for those who actually wanna pipe names (paths'n'all)
;	  to StdOut.  (The -c means omit ZIP comments.)

;v1.6a  GWS (yeah, hacking away in West Germany's capital village) strikes again
;	- Cleaning up verbose display:
;	  Some columns were one off. Also, change name alignment slightly.
;	- Added /m ('monosyllabic') command line switch:
;	  This will show full names, paths'n'all, as stored in the Zip,
;	  one per line, and nothing else. May be nice for piping into
;	  other programmes. - Beware of the header lines, though.

;v1.6	- v1.4a Changes:
;	  Gisbert Selke (all the way from Germany, I think) tweaked the earlier
;	  v1.4 (see v1.4a comments).
;	  I kept his changes (that I hadn't already added in v1.5 myself),
;	  incorporating them into the v1.5 code.  (Of course, just HAD to tweak
;	  his changes as well!)
;	- Member filenames:
;	  Still considering shifting filenames to the right hand side of
;	  the screen output.  That would permit long (path) filenames to be
;	  displayed/output (with screen wraparound handling the weird,
;	  extra-long ones).  I believe that's why the PKZIP (Katz) author
;	  formatted his display that way.  But the member names on the right
;	  is NOT convenient to me!  Leaving it the original way (member file
;	  names on the left).

;v1.5	Updating for PKZIP v1.01
;	- Added "implode" to file compression style table
;	  (plus other tests to insure we catch illegal values).
;	- Adding an "E" before the compression style
;	  (to indicate if file is encrypted) (verbose only).
;	- Found bug in testing for ZIP member filename paths:
;	  PKZIP uses the "/" char for subdir separator instead of "\".
;	  Fixed.
;	- Tightened up code for path-testing,
;	  extended the "+" path flag display for verbose as well as
;	  nonverbose displays.
;	  No, we aren't displaying paths yet.
;	- If using wildcard member option (in verbose mode),
;	  we don't display verbose header until we find a qualifying
;	  file.
;	- Total and total total displays:  More than one qualifying member
;	  file must be found before the figures are displayed.  (This is
;	  for verbose mode only.)
;	  - Totals (qualifying member files, each ZIP)
;	  - Total totals (qualifying member files, ALL qualifying ZIPs)
;	- WildCard searches:
;	  Considered not displaying a target .ZIP file's name at ALL
;	  if it has no "eligible" member wildcard contents (to shorten
;	  output to just those .ZIP files (and members) found in a wildcard
;	  search.  However, decided a non-find is valuable information.
;	  At least the .ZIP file name will be output.
;
;	- Removed earlier v1.n flags from code
;
;	Considering processing file names (vname) to handle "long" names
;	(e.g., those with paths).
;	Paths would probably only be displayed in verbose mode
;	(on a separate line, or maybe to screen right, letting screen
;	display handle "wraparound").

;v1.4a  Gisbert W.Selke (RECK@DBNUAMA1.BITNET for now): allow '/' as
;	switch char, too (for them die-hard DOS people like myself).
;	Output rrrrreal 4-byte CRCs. Add text for 'Imploded'.

;v1.4	Keith Petersen (W8SDZ@WSMR-SIMTEL20.ARMY.MIL) informs me ZDIR
;	is failing on a lot of ZIP files from local BBS's.  Seems the BBS's
;	are adding huge comments, and ZDIR can't find the central directory.
;	Increasing ENDOFS (the amount of ZIP file trailer we read in)
;	to allow for this.
;	Keith also suggested the verbose mode as default .. but I don't agree!
;	If I wanted verbose, I would have used PKZIP -v in the first place!
;	Also programs like Buerg's ZIPV do that just fine.

;v1.3c  Bug:  I'd written code to handle no cmdline parms at all,
;	but failed to test it!  Turns out system locks up!
;	Thanks to FAAR RBBS for alerting me.  Sloppy testing procedures.

;v1.3b  Bug:  Forgot the added "-v" verbose switch as the FIRST PSP
;	cmdline argument would blow away using our PSP FCB's to get
;	the parsed member filename.
;	Using _Args (from KEGELUNX unix-like cmdline parsing)
;	to handle the -v switch anywhere on cmdline.
;	(Affects Parse_CmdLine only.)

;v1.3a  23 Mar 89
; -	Adding file comment display to verbose mode.
; -	Because of the occasional padding (by XMODEM) of garbage to the
;	end of a file, we're back to reading a full 256 bytes at the
;	ZIP file end to find that end structure (149 bytes for the largest
;	likely ENDDIR structure, plus the padding to the next 128 boundary).
;	If you don't HAVE any of these files, change ENDOFS back to 149.

;v1.3	22 Mar 89
; -	Adding verbose display (a -v switch).
;	Cribbing code from QBARCV3.ASM (my improvements on QBARV2.ASM,
;	a utility for RBBS ARC/PAK displays).
;	Usage:  ZDIR -v foob	(yep, -v must be first parm)

;v1.2	21 Mar 89
; -	Missed the obvious .. the very last structure in a ZIP file
;	(call it ENDDIR) contains a pointer to the central directory.
;	Since the only variable length fields in that last structure
;	are fairly short (zip comments, etc.), it should be MUCH smaller.
;	We won't need that huge 5Kb SWAG for the initial directory read.
;	Cutting buffer down to 128 bytes, reading in ENDDIR to get that
;	central directory pointer, and then going right to central directory.
;	Since the max possible ZIP file comment (in ENDDIR) is 7FH bytes,
;	the max possible ENDDIR would be 7FH + 22 (normal structure size)
;	or 149 bytes (ENDOFS).
; -	Moved initial cmdline parsing down to code end
;	(just to clean up things)
; -	Caught a bug .. failed on a single '*' wildcard cmdline parm.

;v1.1	18 Mar 89
; -	Added full pathing capabilities for target .ZIP files.
; -	Added ambiguous member screening (e.g., search FOOB.ZIP
;	for just *.ASM files).
; -	Cleaned up the kludgey ADIR wildcard finds with all its
;	multiple DTAs, etc.
; -	Still no way to test for member filename paths.

;Original ADIR.EXE fixes:
; - Fixed bug that never closed any files!
; - Changed to .COM format, tightened, etc.

;ZIP functional changes:  MANY!  I consider this almost a total rewrite
;(except for the kludge with wildcard finds from the original ADIR.EXE).
;(So that's settled now, too.)						v1.7

; - Since the filename length is variable (and may include paths),
;   the handling, formatting and display is significantly different
;   than in ADIR.
; - Have to put back the ambiguous member parsing.

;David Kirschbaum
;Toad Hall