DOCTYPE definition not possible in data.xml

[dark-m0de]

Some HTML entities that are used within xml in VSCode cause warnings, e.g.:

• <, > and some others work fine
•  or € create a warning message.

VSCode proposes to create a DOCTYPE definition, e.g. for  :

<?xml version="1.0"?>
<!DOCTYPE data [
  <!ENTITY nbsp "entity-value">
]>
<data>
</data>

However, adding a doctype definition to the data.xml crashes the speedata publisher:

Loading data file "/Users/conrad/Repositories/creisch-dev/creisch-fachinfo-template/data.xml"
Error: [page 1] ...ch-fachinfo-template/speedata-publisher/sw/lua/luxor.lua:69: bad argument #1 to 'gsub' (string expected, got nil)
stack traceback:
        ...-template/speedata-publisher/sw/lua/publisher/spinit.lua:57: in function 'call'
        ...-template/speedata-publisher/sw/lua/publisher/spinit.lua:408: in function 'main_loop'
        ...-template/speedata-publisher/sw/lua/publisher/spinit.lua:417: in main chunk
        [C]: in function 'require'
        [\directlua]:1: in main chunk
Stop processing data
1 errors occurred

May I kindly ask to review luxor.lua?

BR, Conrad

P.S.: I try my best to create a merge request in the future.

[dark-m0de]

P.P.S.:   works as a workaround for   to avoid warnings.

[pgundlach]

fixed in 4.7.7