[Dev-luatex] require doesn't get recorded

[Hans Hagen]

On 11/7/2019 3:57 PM, Linas Stonys wrote:
> Hi All,
> I'm using dirty trick to write documents used .otf files to .fls by 
> adding code to ...\tex\latex\fontspec\fontspec.cfg
> 
> \bgroup
> \catcode`\ 10 %
> 
> \gdef\opentype at write@to at fls{%
>      \directlua{
>          local fontdata = fonts.hashes.identifiers
>          local done = {}
>          for id, fdata in pairs(fontdata) do
>              if fdata.filename and not done[fdata.filename] then
>                tex.sprint("\string\\IfFileExists{".. fdata.filename 
> .."}{}{}")
>                done[fdata.filename] = ''
>              end
>          end
>          }}
> 
> \egroup
> \AtEndDocument{\opentype at write@to at fls}
> 
> Then example:
> \documentclass{article}
> \usepackage{fontspec}
> 
> \begin{document}
> \fontfamily{ptm}\selectfont a
> \end{document}
> 
> Maybe this could be solved directly in luatex engine that all the input 
> would be written to .fls?
i have no clue what that code is for but if it's a trick to get 
something recorded, you can probably use

fio.recordfilename(fdata.filename)


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