On Wed, Sep 12, 2018 at 1:51 PM luigi scarso <luigi.sca...@gmail.com> wrote:
>
>
> On Wed, Sep 12, 2018 at 1:38 PM Marcel Krüger <t...@2krueger.de> wrote:
>
>> ---- 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
>>
>> OK, thank you very much.
>
>
> --
> luigi
>
patched applied -- revision 6978.
--
luigi
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