Installation and Setup of the MacOS Version

The archive file PHREEQC.sit will expand to reveal a folder containing an alias
to the application program, this ReadMe file, and three folders: prog contains
the application, example files and database files; doc contains the PHREEQC
manual in pdf format (requires Adobe Acrobat Reader obtainable from
<http://www.adobe.com>); and src contains the current source code.

PHREEQC on the MacOS operates as a console program much like the DOS or Unix
versions.  Upon opening PHREEQC, a command-line dialog box will appear.

This dialog allows you to enter the command-line arguments as they would be
invoked from a command-line operating system.  The arguments are the input file,
output file, database file, and console output file; they must be entered in
order, but succeeding arguments can be skipped if the default files are
acceptable.  Clicking "OK" will lead to the main console window ("Quit" allows
you to abort the process), and can be used to bypass the command-line if you
prefer to enter filenames interactively.  (The buttons toward the bottom of the
command-line dialog allow you to redirect the console input and output to
files, if desired).

The main console window will be the only other place that you interact with
PHREEQC directly.  The top line informs you what PHREEQC is doing.  You should
wait for the message "application has terminated" before quitting the
application.  You can force the termination of a long simulation by pressing
command-period.  The console output depends on the input file; for faster runs
set PRINT-status to false since writing text to the console window may be time
consuming.  When the console window is displayed, the File menu and Edit menu
allow copying or printing of the displayed text.

Since the input and output files are text files, you can use SimpleText to
create or edit them.  However, SimpleText will not handle text files larger than
32k; a better free editor is BBEdit Lite (available from
<http://www.barebones.com> or <ftp://ftp.barebones.com>) which can easily
handle large text files.  If you are exchanging files between various operating
systems, be aware that the end-of-line sequences are different (CR-LF on DOS,
CR on MacOS, LF on Unix).

PHREEQC 2.6 requires a PowerPC processor.

29 May 2002
