Dohyun Kim submitted an update to the
luamplib
package.
Version number: 2.03 License type: gpl
Summary description: Use LuaTeX's built-in METAPOST interpreter
Announcement text: ----------------------------------------------------------------------
Using TEX() or textext(), METAPOST labels can be typeset with variable, for instance n_0, n_1, n_2... This feature is equivalent to that of TEX.mp, which cannot be used in mplibcode environment.
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This package is located at http://mirror.ctan.org/macros/luatex/generic/luamplib/
More information is at http://www.ctan.org/pkg/luamplib
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Thanks for the upload.
For the CTAN Team Petra Rübe-Pugliese