A lisp-looking programming language for fun in Rust.
It is made to be pretty easy to understand and be rewritten in other programming lanuages. Nody uses function overloading, meaning that a function can have different definitions depending on the arguments passed in.
You can look at some samples in the samples/ directory.
Nody has a lisp-like syntax as already mentioned, having every function call wrapped in ( and ) to mark the end. Most programming languages have two parts for grammatical analysis, lexing and then parsing, but because the syntax of Nody is so simple, I decided to combine the two parts which I just called scanning. Instead of scanning the file for so called tokens, which the lexer does, the scanner instantly converts the source file to a tree-node structure. This saves some time on the pre-interpretation stage.
| name | representation |
|---|---|
| none | () |
| int | 1, 2, ... |
| float | 1.5, 0.1, ... |
| char | 'a', 'b', ... |
| bool | true / false |
| string | "..." |
| type | int, float, ... see types |
| word | name, age123, <, ... any chars ended by white space |
| key | @name, @age123, @<, ... a word with @ in front |
| node | (anything ...) a head node with following arguements which can be any type of node |
| body | {...} a collection of any kind of node |
| vector | [...] a collection of any kind of node that return a value |
| closure | #... a container for any kind of node saved as a closure value used for functions |
| params | $(word type ...) a collection of pairs of words and types or nodes that return types used for functions |
| object | ${word anything ...} a collection of pairs of words and values |
Comments are made by starting with a ;. Until a new line starts, everything in-between will be ignored by scanner.
The language is pretty strict with it's types, even though it's interpreted.
| name | examples |
|---|---|
| int | 1, 2, ... any natural number |
| float | 1.5, 0.1, ... any decimal point number |
| char | 1.5, 0.1, ... any decimal point number |
| bool | true / false |
| str | "..." a string of chars |
| vec | [...] a sequence of values |
| key | @... a word as a value used for referencing |
| index | a index of a vector as a value used for referencing |
| path | a key of an object as a value used for referencing |
| closure | #... a container for any kind of node as a value used for functions |
| params | a key of an object as a value used for referencing |
| fn | a procedure that takes in parameters and a closure to execute that might return a value |
| native-fn | like a fn but written in the interpreters programming language |
| object | ${age 18 ...} a collection of pairs of words and values as a value |
| type | int, float, ... any type name in this list |
| any | a special type as it has no value of it's type, used for parameters as it matches with any other type |
Discord: sty#8189
Gmail: reutervincent6@gmail.com
Help is always welcome!