---- On Wed, 12 Sep 2018 13:07:36 +0200 luigi scarso <luigi.sca...@gmail.com>
wrote ----
>
>
> On Wed, Sep 12, 2018 at 12:16 PM Marcel Krüger <t...@2krueger.de> wrote:
> Hi,
>
> I noticed two problems with the mplib `get_...` family of functions:
>
> - First there seems to be a LuaTeX specific documentation bug:
> In the LuaTeX manual these functions are listed as `getboolean`,
> `getnumeric`, `getstring`and `getpath`, but in the actual
> implementation the names contain a underscore.
>
> - If `get_numeric` is called while two nested loops are in effect in
> MetaPost,
> an endless loop is triggered when MetaPost tries to iterate
> through the current loops.
>
> I attached a patch fixing both problems. The second point also applies to
> the standalone mplib.
>
> Thank you for the patches.Do you have an example where the get_numeric fails
> ? --
A plain LuaTeX example:
\directlua{
local mp
mp = mplib.new{
extensions = 1,
run_script = function(script)
print('The value:', mp:get_numeric'mynumeric')
return ""
end
}
mp:execute[[
mynumeric = 1;
myother = for i=1,2:
for j=1,2:
i+j+runscript"something"
endfor endfor
1;
]]
}
\bye
This prints `The value: 1.0` with the patch and freezes without it.
Best regards
Marcel
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