documentation.md

Documentation

This file will describe how the multiline comments are parsed. As you'll see, the syntax is designed to be short and extremely easy to use.

Modules

If your file defines a module, declare it at the top of your file.

--[[
$module Transposition

An overall description of the module.
--]]

The $module tells the parser that the file defines a module. It will also prepend the module name to each of the methods in the file. For instance, this method…

--[[
% chromatic_transposition(note, interval, alteration, simplify)
--]]

…will be documented like this.

## chromatic_transposition

```
transposition.chromatic_transposition(note, interval, alteration, simplify)
```

Table of contents

A table of contents will be added to each markdown file automatically. So if you add the following methods…

--[[
% chromatic_transposition(note, interval, alteration, simplify)
--]]

--[[
% diatonic_transposition(note, interval, alteration, simplify)
--]]

…it will automatically generate this table of contents.

- [chromatic_transposition](chromatic_transposition)
- [diatonic_transposition](diatonic_transposition)

Functions

For functions and methods, you can document their usage, inputs, and outputs easily.

Function definition

To define a function, just use the % character at the start of a line.

--[[
% chromatic_transposition(note, interval, alteration, simplify)
--]]

Inputs

To define inputs, use the @ character.

--[[
@ input_name (type) description of the input
--]]

Create an optional input by putting brackets around the name.

--[[
@ [input_name] (type) description of the input
--]]

Output

To define the return value of the function, just use a :.

--[[
: (type) description of the output
--]]

Examples

You can find a complete list of examples in the test-files directory, but for now, imagine you have this lua file:

--[[
$module Transposition

An overall description of the module.
--]]

-- make sure the module definition is separated from the first methods's definition

local transposition = {}

--[[
% chromatic_transposition(note, interval, alteration, simplify)

A description of how the code works

@ first (string) Text of the first parameter
@ [optional] (any) Optional parameters to be called whatever

: (number) Number of whatever is done or nil if an error occurred
--]]

function transposition.chromatic_transposition(note, interval, alteration, simplify)
    -- does something
end

--[[
% diatonic_transposition(note, interval, simplify)

Another a description of how the code works

@ note (FCNoteEntry) This is the input note

: (boolean) Whether or not the operation succeeded
--]]

function transposition.diatonic_transposition(note, interval, simplify)
    -- does something
end

return transposition

It will generate the following output (rendered version):

# Transposition

An overall description of the module.

- [chromatic_transposition](#chromatic_transposition)
- [diatonic_transposition](#diatonic_transposition)

## chromatic_transposition

```lua
transposition.chromatic_transposition(note, interval, alteration, simplify)
```

A description of how the code works

| Input | Type | Description |
| --- | --- | --- |
| `first` | `string` | Text of the first parameter |
| `optional` (optional) | `any` | Optional parameters to be called whatever |

| Output type | Description |
| --- | --- |
| `number` | Number of whatever is done or nil if an error occurred |

## diatonic_transposition

```lua
transposition.diatonic_transposition(note, interval, simplify)
```

Another a description of how the code works

| Input | Type | Description |
| --- | --- | --- |
| `note` | `FCNoteEntry` | This is the input note |

| Output type | Description |
| --- | --- |
| `boolean` | Whether or not the operation succeeded |