Editing Stack-oriented programming (section)

== Analysis of the language model ==
The simple model provided in a stack-oriented language allows expressions and programs to be interpreted simply and theoretically evaluated much faster, since no [[syntax analysis]] needs to be done but [[lexical analysis]]. The way such programs are written facilitates being interpreted by machines, which is why PostScript suits printers well for its use. However, the slightly artificial way of writing PostScript programs can form an initial barrier to understanding stack-oriented languages such as PostScript.

While the ability to shadow by [[method overriding|overriding]] inbuilt and other definitions can make programs hard to debug, and irresponsible use of this feature can cause unpredictable behaviour, it can simplify some functions greatly. For example, in PostScript use, the <code>show page</code> operator can be overridden with a custom one that applies a certain style to the page, instead of having to define a custom operator or repeat code to generate the style.