L is a postfix-oriented programming language that offers basic operations, such as arithmetic operations and logical operations, and other extra operations, like “tell me a joke”. The language uses some constructs similar to assembly languages. There are also other unique constructs.
To get started clone this repo:
git clone https://github.com/ZiyadBoshima/L.git
Ensure you have the racket command line tool installed.
In order for L code to run, it should be written inside code.el.
./ L.rkt code.el LICENSE README.md
To run L code, run the following command in the terminal:
racket L.rkt
To code in L, begin your code with “start:” and end it with “end start”. The body of the program will be between two curly braces, like so:
start:
{
program_body
}
end start
To define a variable, use [mov] operator like so:
Variable Value [mov]
or
Variable Variable [mov]
The variable type does not need to be declared as L is dynamically type. The possible types of values are: integers, floats, strings.
For arithmetic, logical, and relational expressions, the operators are defined as follows: [and], [or], [not], [add], [sub], [mul], [div], [mod], < as [s], > as [b], <= as [se], >= as [be]. These can be used in this syntax:
Variable Variable [operator]
or
Value Value [operator]
In order to print results in the console, L provides the show{} function, and can be used like so:
show{Something}
Spaces and new lines can be added to the output by using . and .n respectively. In order to be used with operations and values, a separator symbole | must be used.
show{. | String} // adds space to a single space
show{String | .n} // adds new line after string
The order of the objects inside the can be in any order, and can be repeated as many times.
show{ space_or_newline | value_or_variable_or_operation}
L provides a casting function, convert(), that turns an integer into a string.
convert(variable_or_value)
If at times programming feels mundane—hopefully never with the L language—run this function:
[tell me a joke]
./code.el
start:
show{'1 + 2 is '| 1 2 [add] | .n | .n}
[tell me a joke]
end start
output:
1 + 2 is 3
How did the hipster burn the roof of his mouth?
He ate the pizza before it was cool.