A design model of NC code complier based on ANother Tool for Language Recognition (ANTLR) was presented, which adopted the Extended Backus Naur Form (EBNF) to define the NC programsyntax rule.
Syntax can make your program more succinct, but overuse can cause confusion — or, even worse, scope conflict errors.
语法可使您的程序更简洁，但过度的使用也会导致混淆，甚至出现更糟糕的作用域冲突错误。
3
Based on code from the "Explore relationships among Web pages visually" article, the twitdot.pl program generates FDP graph-generation syntax for Graphviz.