Thank you Patrick for your detailed answer! Unfortunately I did not get
it. In my memory far away, I thought in BBEdit it is possible to search
directly for a Unicode, something like: \u{0x0308} ???
I discovered in my text filters an old filter, which I put up long time
ago and I called it "
pdf_to_text.pl" If you are running it over the
text, which you copy and pasted from a pdf to your txt file, it replaces
the "wrong" Umlauts with the right ones.
In this script all special characters out of the range of ASCII are
replaced with the real ones (I can't explain it better). I only don't
know whether my email client will not transform it; so probably this
little perl-script will not work any more. In any case; here it was
working, and my special character is away! Uff!
#!/usr/bin/perl
# this filter are looking a bit strange.
# but copying from a pdf file text with
# German Umlauts gives you double? letters
# and not unicode letters. Don't know
# how to explain it more precisely.
# So the letter in the search and replace
# here are not the same.
use warnings;
use strict;
while (<>) {
s/- //g;
s/’/'/g;
s/„/"/g;
s/“/"/g;
s/ //g;
s/- (?!Euro)//ig;
s/–/-/g;
s/ü/ü/g;
s/Ü/Ü/g;
s/ö/ö/g;
s/Ö/Ö/g;
s/ß/ß/g;
s/ä/ä/g;
s/ç/ç/g;
s/„/<em>„/g;
s/“/“<\/em>/g;
s/è/è/g;
s/é/é/g;
print;