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About JAICNV
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JAICNV is a general conversion calculator for the Psion 3a.

This is version 1.1 of JAICNV.

JAICNV is distributed under the terms of the GNU General Public
License. A copy of this is included in the distribution as file
COPYING.GPL. Please read it!

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Unzipping
----------------------------------------------------------------------

Zip files can be read on almost any platform, as long as you have the
right tools.

For Macintosh users (and maybe others) make sure, when unzipping the
file(s) your zip utility is set to unpack the zip file as "binary" or with
option "smart-strip linefeeds from text files" turned off (for Zipit; you
may need to restart Zipit after changing the settings) or option
"convert newlines" off (Info-Zip's Unzip).


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In this distribution
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COPYING  GPL    12737   9-12-92  Text of GNU General Public License
README   TXT     6021  24-03-97  This file
JAICNVEN TXT    29985  15-01-97  The English User Manual
JAICNVNL TXT    33200  15-01-97  The Dutch User Manual
JAICNVDE TXT     4625  15-01-97  The German User Manual

JAICNV   OPA    10379  16-01-97  The program
JAICNVEN DBF    14260  16-01-97  The conversion database with english texts
                                 Almost 250 conversion specifications
                                 allowing more than 6500 conversions.
JAICNVEN HLP     4654  15-01-97  The help database with english texts

JAICNVNL DBF    14201  16-01-97  The conversion database with dutch texts
                                 Same as jaicnven.dbf, but in dutch.
JAICNVNL HLP     4993  15-01-97  The help database with dutch texts

JAICNVDE DBF    14146  16-01-97  The conversion database with German texts
                                 Same as jaicnven.dbf, but in German.
JAICNVDE HLP     4728  15-01-97  The help database with German texts

JAICNV   OPL    24285  16-01-97  The source code
JAICNV   PIC      608  28-07-94  The icon picture
JAIEMPTY DBF      670   4-01-97  An empty conversion database, for your
                                 convenience if you want to create your own.

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Revision history
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Version 1.1    16-01-1997 Update release
               Major changes:
               - Use variable length strings (through library calls) for
                 the from and to unit choice lists, so they can contain
                 more items. Maximum length is now only limited by memory.
               - Searching DBF file on default disk as well as on flash/SSD
                 disks in drive A or B (if present).
               - Open help file read-only.
               - Possibility for read-only access to database, by using
                 a separate defaults database (INI file). The INI filename
                 must be specified in the database.
                 In the new databases this is the default.
                 It allows more optimal storage on a flash disk.
               - Addition of database and help texts in German.
               - Updated currency exchange rates.
               - Added units "kilocalorie", "didotpoint", "duim",
                 "German mile", "league", "Lichtyear", "Lightsecond",
                 "English seamile", "picapoint", "yard US", "perch",
                 "degrees Reaumur", "dddhhmmss", "dragon month",
                 "fixed star year", "fixed star month", "gregorian year",
                 "julian year", "moonyear", "perihel year", "perihel month",
                 "synodical month", "tropical year", "tropical month",
		 "barrel dry UK", "Barrel oil US",
               - Corrected some numbers and descriptions.

Version 1.0    26-08-1994  First release
               Known bugs:
               - Code is not very efficient in memory usage
               - Category unit names are searched case insensitive
                 but at some places compared case sensitive.
                 This can give problems. Therefore always use same
                 case for category unit name on all cards.

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Wish list
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- If I know how, I like to use a dialog for the main window that
  can change field protections (and field lists) by just changing
  one of the lists (so not having to press Enter).
  Some of the dialogs on the Psion can do it.
- Maybe I should use something else than a dialog for the main
  window, so the menu, help and fast keys can be used while
  the main window is shown.
- Think about making Jaicnv a type 3 application, so the database
  can be selected when starting. This probably requires a
  separate directory or file extension, which makes changing the
  database with Data less easy. Its a trade-off.
- Maybe try to find out the language of the psion and choose the
  corresponding database.
- If I know how, use the help viewer as used by the standard
  Psion 3a applications, so there can be more than 8 items
  and longer descriptions, because the window contents can
  scroll.
- If I know how, try to minimize memory usage (if at all
  possible). At the moment it uses about 31 k when run, which
  is much more than the 10 k of the executable size and the
  (estimated) 7 k of variables. Maybe this is due to the use of
  OPL, or for buffers for databases?
- Many more different language versions (but I can not do that
  myself, because I don't know other languages good enough).
- Many more conversion (who has some).
