markdown-toc ![NPM version](https://badge.fury.io/js/markdown-toc.svg)
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;
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;
[ { 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 tokenstoc.linkify()
: linking a heading content
stringtoc.slugify()
: slugify a heading content
stringtoc.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
License
Copyright (c) 2014-2015 Jon Schlinkert
Released under the MIT license
This file was generated by verb on February 19, 2015.