An unassuming documentation format that works with any language.

---

Forked in 2022 to:

• Get it working again in modern NodeJS
• Rewrite in Typescript and remove peg.js parser for a much simpler codebase
• Tweak output syntax for easier usage
• Add line number output
• Add support for languages where doc comment lines instead begin with a given prefix, like Emmylua annotations.

A couple of things I didn't bother porting as they weren't relevant to me, feel free to make a PR though:

• file streaming
• @colon:delimited:tag:format
• @complexProperty["!value"]
• cod function pretty option
• cli glob path input

---

/**
@Example
  Text can go anywhere.
     Whitespace is preserved.
  @flag
  @number 42
  @string Hello, cod
  @nested
    @property yay
    Nested text.
  @list A
  @list B
  @list C
*/

{
  "@Example": {
    "lineBefore": 0,
    "lineAfter": 15,
    "text": "Text can go anywhere.\n   Whitespace is preserved.",
    "@flag": true,
    "@number": 42,
    "@string": "Hello, cod",
    "@nested": {
      "text": "Nested text.",
      "@property": "yay"
    },
    "@list": ["A", "B", "C"]
  }
}

stupid by design

cod is not a documentation generator.

It is a documentation format that outputs nearly "1-to-1" JSON.

cod does zero code analysis.

cod doesn't know what @class, @return, @param or @any @other tag means.

cod does not generate HTML, PDFs, or any traditionally human-readable documentation; that part is left up to you.

As such, cod is not a standalone replacement for tools like doxygen or Sphinx, but it functions as the first step in a more flexible doc-generation process for those who need finer control.

cod may not be smart, but it's not stubborn, either.

You write your docs in cod's format, and it faithfully outputs JSON. That's it.

Use whatever tags you need.

Anything that isn't a @tag is text.

Text sections are left untouched. You can process it as Markdown later. Or HTML. Or just keep it as plain text.

Once you have the JSON, use it however you like:

• Utilize existing templates and styles.
• Build an app that can consume multiple versions of your API docs.
• Easily compare specific versions of your API at the structural level.

cod is naturally language-agnostic; all it needs to know is the pattern you use to denote a doc-block (i.e. /** and */).

format

Tags without values are treated as boolean flags:

@flag

{
  "@flag": true
}

There are also numbers and strings, and you can explicitly set a flag to false:

@number 42
@string Hello there.
@boolean false

{
  "@number": 42,
  "@string": "Hello there.",
  "@boolean": false
}

Structure is designated by indentation.

@root
  @nested value

{
  "@root": {
    "@nested": "value"
  }
}

Whitespace after indentation is preserved in text blocks.

@example
  This is some example text.

  It can handle multiple lines.
    Indentation is preserved.

{
  "@example": {
    "text": "This is some example text.\n\nIt can handle multiple lines.\n  Indentation is preserved."
  }
}

Specifying a @tag more than once will turn it into a list of values.

@list A
@list B
@list C

{
  "@list": [
    "A",
    "B",
    "C"
  ]
}

CLI

cod *.js # or *.go or *.c or ...
cod -b '###*' -e '###' *.coffee
cod -b "'''*" -e "'''" *.py
cod -b '{-*' -e '-}' *.hs
cod -b '--[[*' -e ']]' *.lua
cod -p '---' *.lua

cat *.js | cod  > api.json

cod --help

           _-""-,-"'._         
     .-*'``           ``-.__.-`:
  .'o   ))` ` ` ` ` ` `_`.---._:
   `-'.._,,____...--*"` `"     
         ``
cod: An unassuming documentation generator.
  
Usage: cod [-b <doc-begin> -e <doc-end>] [-o <output-file>] [-u] [<input-file>...]

Options:
  -b <doc-begin>    String that marks the start of a doc-block  (default: "/**")
  -e <doc-end>      String that marks the end of a doc-block (default: "*/")
  -p <doc-line-prefix>  String that marks the line prefix of a doc-block (default: "", doc-begin and doc-end are ignored if used)
  -o <output-file>  Output file (default: "STDOUT")
  -u --ugly         Output non-pretty JSON.
  -v --version      output the current version
  -h, --help        display help for command

API

cod(text, options)

If text is supplied, cod will parse it and return a plain JS object that contains your doc structure.

text (String)

Text containing cod-style documentation. Probably source code.

options (Object)

docBegin (String) default: "/**"

String that marks the start of a doc-block

docEnd (String) default: "*/"

String that marks the end of a doc-block

[docLinePrefix](#api_cod_options_ docLinePrefix) (String) default: ""

String that marks the line prefix of a doc-block - docBegin and docEnd are ignored if used.

import { cod } from 'cod';

const doc = cod(`
  /**
    Hello, cod.
    @answer 42
  */`, {});

console.log(doc); 

// Output:
// { 'text': 'Hello, cod.', '@answer': 42 }

install

npm install -g @jaames/cod

license

MIT