extract_translations - auxiliary tool that extracts lines to be translated
from ejabberd source tree.
Building:
erlc extract_translations.erl
Invoking 1:
erl -noinput -s extract_translations -extra dirname message_file
where dirname is the directory "src" in ejabberd's source tree root,
message_file is a file with translated messages (src/msgs/*.msg).
Result is a list of messages from source files which aren't contained in
message file.
Invoking 2:
erl -noinput -s extract_translations -extra -unused dirname message_file
Result is a list of messages from message file which aren't in source
files anymore.
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