markdown-toc

markdown-toc

Generate a markdown TOC (table of contents) with Remarkable.

Install with npm

npm i markdown-toc --save

Usage

var toc = require('markdown-toc');

toc('# One\n\n# Two').content;
// Results in:
// - [One](#one)
// - [Two](#two)

To allow customization of the output, an object is returned with the following properties:

• content {String}: The generated table of contents. Unless you want to customize rendering, this is all you need.
• highest {Number}: The highest level heading found. This is used to adjust indentation.
• tokens {Array}: Headings tokens that can be used for custom rendering

toc.json

Object for creating a custom TOC.

toc('# AAA\n## BBB\n### CCC\nfoo').json;

// results in
[ { content: 'AAA', lvl: 1 },
  { content: 'BBB', lvl: 2 },
  { content: 'CCC', lvl: 3 } ]

toc.insert

Insert a table of contents immediately after an opening <!-- toc --> code comment, or replace an existing TOC if both an opening comment and a closing comment (<!-- tocstop -->) are found.

(This strategy works well since code comments in markdown are hidden when viewed as HTML, like when viewing a README on GitHub README for example).

Example

<!-- toc -->
- old toc 1
- old toc 2
- old toc 3
<!-- tocstop -->

## abc
This is a b c.

## xyz
This is x y z.

Would result in something like:

<!-- toc -->
- [abc](#abc)
- [xyz](#xyz)
<!-- tocstop -->

## abc
This is a b c.

## xyz
This is x y z.

Utility functions

As a convenience to folks who wants to create a custom TOC, markdown-toc's internal utility methods are exposed:

var toc = require('markdown-toc');

• toc.bullets(): render a bullet list from an array of tokens
• toc.linkify(): linking a heading content string
• toc.slugify(): slugify a heading content string
• toc.strip(): strip words or characters from a heading content string

Example

var result = toc('# AAA\n## BBB\n### CCC\nfoo');
var str = '';

result.json.forEach(function(heading) {
  str += toc.linkify(heading.content);
});

Options

options.bullet

Type: String|Array

Default: *

The bullet to use for each item in the generated TOC. If passed as an array (['*', '-', '+']), the bullet point strings will be used based on the header depth.

options.maxDepth

Type: Number

Default: 3

Use headings whose depth is at most maxDepth.

options.firsth1

Type: Boolean

Default: true

Exclude the first h1-level heading in a file. For example, this prevents the first heading in a README from showing up in the TOC.

Run tests

npm test

Contributing

Pull requests and stars are always welcome. For bugs and feature requests, please create an issue

Author

Jon Schlinkert

• github/jonschlinkert
• twitter/jonschlinkert

License

Copyright (c) 2014-2015 Jon Schlinkert
Released under the MIT license

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This file was generated by verb on February 19, 2015.