2002-03-20:
- which 2.1 released
-- Version 2.1 adds DOS switchar support and fixes two bugs I
discovered while testing the new feature. The first bug was
a problem that caused an executable to be listed twice if
which were executed in a dir that was also listed in the
PATH. Weird. I thought I nailed that one already, but I
guess I missed it. The second bug was rather serious in that
a control loop caused which to completely skip checking the
last directory in the path. Oy! Both those bugs are fixed,
so which should FINALLY work as advertised.
2000-09-06:
- which 2.0 released
-- This release offers a couple of new features. The first
new option is support for the PATHEXT environment variable,
which holds the list of program extensions for which to
search. For more information on how to use the PATHEXT
environment variable, consult the help file. The other new
feature is proper codepage support. which now displays time,
date and file-size information using the formats and
separators defined in the codepage information. Finally,
I fixed a bug that caused which to display a file twice if
the -a or -ad option was selected and the current working
directory also happened to be listed in the PATH. Note: if
you're compiling which yourself, you'll need to compile the
Country unit, country.pas, and make it available to your
compiler before you'll successfully compile which.pas.
1999-08-29:
- which 1.0 released
-- This release features new option switches 'ad' and 'd'.
The new switches deal with displaying of file size and
date details. Supporting detail display is the use of
the environment variable 'WHICHDETAILS', which causes
the program to default to displaying details. When
WHICHDETAILS is used, the 'ad' and 'd' switches toggle
off detail display. Since the application has been
stable since last November and the latest changes were
so small, I decided to jump to v1.0. Most people
should be a bit more trusting of the program now.
1998-11-12:
- which 0.06 released
-- This release addresses a serious problem with the Borland
Turbo Pascal compiler's delay loop calibration that causes
programs compiled with the Crt unit to exit with a runtime
error 200 on machines with Pentium Pro 200 MHz processors
and higher. This fix effectively only affects the binary
itself; WHICH.PAS remains completely unchanged except for
the version information. (For more information on the
runtime bug and how to fix it, see the various Borland-
` related newsgroups. A drop-in replacement for the Borland
Pascal 7.01 or Turbo Pascal 7.01 Crt unit can be found at
ftp.turbopower.com/pub/misc/crtfixes, which is where I got
my compiler fix from.)
1998-11-07:
- which 0.05 released
-- Fixed bug that caused which to append a trailing backslash
to the current working directory under root. This behaviour
caused which to be unable to find files in the current
directory when in root and the directory was not listed in
the PATH environment variable. OOPS! Sorry, folks. Should
be fine now.
1998-08-24:
- which 0.04 released
-- which 0.03 incorrectly reported version as 0.02 *fixed*
-- man page incorrectly dated 14 Aug 1998 internally *fixed*
-- some subtle formatting changes to the code itself; end-user
functionality is unchanged, but coder gets points for style
(e.g., dir2search procedure was modifying var endOfPath
although it was not declared as a variable parameter of
the procedure) *fixed*
-- changed all instances of '+' operator in code to concat
function due to its better performance (highly optimized
assembler)
-- found a problem with the way relative paths were dealt with
(e.g., which ..\..\bin\turbo); specifying a drive and/or
path to search should now be working correctly *fixed*
1998-08-20:
- which 0.03 released
-- fixed wildcard support. 'which comm*' finds all files
beginning with "comm" that end with executable extensions.
Specifying 'which comm*.*' finds ALL files beginning with
"comm". Both '*' and '?' wildcards supported. For an
insanely fast dump of all files in your PATH, try this:
which -a *.* >>which.out
I think the wildcard support is really nice now...
-- some small corrections to the man page
1998-08-14:
- which 0.02 (no changes to executable)
-- renamed HISTORY.TXT to NEWS to conform with FreeDOS
coding guidelines
-- Changes to WHICH.HLP (help file):
--- BUGS: Wildcards are only partially handled. This
should either be fixed or support should be
completely removed. Different implementations of
which that I've used are inconsistent in this
regard, so I'm not sure what I'll do. Any
preferences one way or the other? For details, see
the man page.
--- Oops. Deleted the Pascal comment markers from the
help file.
--- Deleted the TODO section (regarding implementation
of filename validity checking). I've decided not
to implement this as success/failure exit status
values are not affected either way. IOW, you're
responsible for your own typing. ;-)
--- Added AUTHOR section.
--- Made a small correction to option references in
the DESCRIPTION section.
-- Changes to WHICH.PAS (source code):
--- Synchronized man page section with help file.
1998-08-12:
- which 0.02 released
-- added /? (help), /v (version), and /a (all) options for
better compatibility with other FreeDOS commands (common
look and feel); UNIX-like options left as is for the geeks
in the crowd
-- changed display of executables in current directory;
now shows .\<filename> instead of just <filename>
-- updated WHICH.HLP file to reflect new options
-- moved contact information from help info to version info
for less clutter
-- help info is somewhat more terse now, but should still be
helpful ;-)
-- added HISTORY.TXT to package so everybody knows what
changes I've made and can follow the development cycle
1998-08-08:
- which 0.01a released
-- recompiled WHICH.EXE with default TP7 compiler switches
so that executable runs a bit faster and no longer
requires 286-or-higher CPU's and FPU
1998-08-08:
- which 0.01 released