[luatex] Undocumented callbacks

Joseph Wright joseph.wright at morningstar2.co.uk
Mon Jun 22 09:24:59 CEST 2015

Hello all,


      for i,_ in pairs(callback.list()) do
        texio.write_nl("- " .. i)

with LuaTeX 0.80.0 (TL'15) lists 58 callbacks. Comparing the list with
those in the manual, there seem to be four undocumented ones:

 - char_exists
 - find_cidmap_file
 - pdf_stream_filter_callback
 - read_cidmap_file

What is the status of these callbacks?
Joseph Wright

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