Program Structure

A Pacioli program start with imports and includes, followed by definitions, type declarations and top-level expressions. After the definitions have been processed, the toplevel expressions in a module are evaluated in the order they appear in the file.

# This is the structure of a Pacioli program

import si;
import geometry;

include some_dir/some_file;

declare foo :: ...;

define foo = ...;

declare bar :: ...;

define bar(x, y) = ...;

bar(foo, 10);

Pacioli only supports line comments. Anything after the # character until the end of the line is ignored.

from toplevel-expressions.markdown:

Toplevel expressions

Expressions can appear at the top leve in a Pacioli program.

All expression at the top-level are evaluated in sequence.

For example

"1 + 1";

"equals";

1 + 1;

produces output

1 + 1
equals
2

Evaluation takes place after all definitions have been processed.