If any operand for an addition is a table,įirst, Luan will check the first operand (even if it is valid). The set of all positive numeric keys is equal to, "_". We use the term sequence to denote a table where There are several convenient ways to create tables in Luan Providing a.name as syntactic sugar for a. The language supports this representation by To represent records, Luan uses the field name as an index. Symbol tables, sets, records, graphs, trees, etc. They can be used to represent ordinary arrays, sequences, Tables are the sole data-structuring mechanism in Luan That is, they can contain values of all types (except nil).Īny key with value nil is not considered part of the table.Ĭonversely, any key that is not part of a table has That is, arrays that can be indexed not only with numbers, The type table implements associative arrays, Java values are useful when Java access is enabled in Luan Java values have no predefined operations in Luan, The type java is provided to allow arbitrary Java objects toĪ java value is a Java object that isn't one of the standard Luan types. Luan can call (and manipulate) functions written in Luan andįunctions written in Java (see Function Calls).īoth are represented by the type function. String is implemented as the Java class String.īinary is implemented as the Java type byte. Operations on numbers follow the same rules of Any Java subclass of Number is allowed and this is invisible to the Luan user. Number is implemented as the Java class Number. Integer numbers and real (floating-point) numbers. Nil is implemented as the Java value null.īoolean is the type of the values false and true.īoolean is implemented as the Java class Boolean. It usually represents the absence of a useful value. Whose main property is to be different from any other value Passed as arguments to other functions, and returned as results. This means that all values can be stored in variables, There are no type definitions in the language.Īll values in Luan are first-class values. Variables do not have types only values do. This section describes the basic concepts of the language. This done not by adding feature to Luan, but rather by providing a complete set of libraries.
#Sheetcam evaluation license full
Unlike Lua which is meant to be embedded, Luan is meant to be a full scripting language. So it makes a great scripting language for Java programmers. Luan is implemented in Java and is tightly coupled with Java.
#Sheetcam evaluation license code
The goal is to provide a simple programming language for the casual programmer with as few concepts as possible so that one can quickly learn the language and then easily understand any code written in Luan. A great strength of Lua is its simplicity and Luan takes this even further, being even simpler than Lua.
Luan is a high level programming language based on Lua.