The program works correctly, 107 lines;
when applied to source text and conversion is done from ASCII to EBCDIC
(using the two code tables from the previous mail) and then the other way,
the final result is identical with the original file :-)
Kind regards
Bernd
Am 29.12.2020 um 23:05 schrieb Bernd Oppolzer:
It's ok for me, it's always fun to think about the problems other
people have;
sooner or later, they may be yours ...
I started to write a Pascal program using my Stanford compiler;
I fed it with two code tables in a format which I downloaded some time
ago from an IBM site (IIRC).
I tried to attach the two files (don't know, if this will work here).
See CP00037 for a certain EBCDIC code page and CP01252 for the normal
Windows code page;
the characters match, when their NAME is the same in both tables.
The program first reads the code table (files), then it builds the
translation table,
and then it is ready to process the REAL input file. This way it can
do every desired code translation
(given the two source and target codepage files).
If you are interested in the result, contact me offline.
Kind regards
Bernd
Am 29.12.2020 um 22:29 schrieb R.S.:
Yes, exactly.
This is one of the reasons for custom-defined table.
Custom-defined is not "standard"
And yes, the goal is to change selected characters, and prepare the
opposite table. Of course translation can be reversible when the
table has unique values (this is first of the conditions) . So, for
example it can be A->B translation, but B has to be translated as
well, let's say B->A. That would change ADAM BROWN to BDBM AROWN
(assuming other characters are not translated), but it reversible.
Let's say translation A -> B and B unchanged would give BDBM BROWN
and there is no way to find out which character need to be reversed.
BTW: I feel guilty a little bit. I just asked simple question and
paid attention of many gentlemen here. I hope the attention is not
just to solve my boring, rather off-topic issue, rather there is
nothing interesting to do instead. ;-)
However thank you all for your help!
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