Gcmc 1.5.0 发布，此版本更新内容如下：
adds constructs such as repeat() and the ternary operator ?:
The local keyword allows assignment and functions allow passing by reference
The pre/post inc/dec operators can be part of expressions
Strings concat using +
The + and - operators changed undef handling and +| and -| operators were added
Several functions have been added, such as pathmode() to set blending, and fixpos_*() to set/store/restore known positions
The functions to_native() and ismodemm() allow coding across mm/inch systems
Canned cycles were added as library functions.
Gcmc 是一种前端语言，用来生成 G-code，SVG， CNC mills 的 DXF，lathes，laser cutters 和其他使用 G-code，SVG 或者是 DXF 的数值控制软件。 Gcmc 是一个上下文无关文法，用来替代古老的 G-code 编程。Gcmc 使矢量数学得到广泛的应用，支持 CNC 的 3D 加工。Gcmc 在必要的时候会自动转换 厘米，英尺，弧度和度数。更多截图：http://www.vagrearg.org/content/gcmc#screenshots
项目主页：http://www.vagrearg.org/content/gcmc
来自:开源中国社区
