richardhundt/nyanga — pull request #12 by franko (2013-09-24 14:37:23+00:00)
Title: Fix expressions Lua code generation

Take into account operators' priorities to use parenthesis where
appropriate.

For example for ```2 * (x + 1)``` generate ```2 * (x + 1)``` instead of ```2 * x + 1``` which is wrong.