breakdance-util

breakdance-util

Utility functions for breakdance plugins.

Install

Install with npm:

$ npm install --save breakdance-util

Usage

var utils = require('breakdance-util');

Visit the breakdance documentation for more information about using and customizing breakdance.

API

.block

Wrapper for creating the handlers for compiling a tag that has *.open and *.close nodes, in a single function call.

Params

• open {String}: The opening tag to render
• close {String}: The closing tag to render
• state {Object}
• handler {Function}: Visitor function to modify the node
• returns {undefined}

Example

breakdance.set('div', utils.block('', ''));
breakdance.set('address', block('\n<address>\n', '\n</address>\n'));
// optionally pass a handler function to access the "parent" node
breakdance.set('abbr', block('<abbr>', '</abbr>', function(node) {
  var attr = utils.toAttribs(node.attribs, ['title']);
  if (attr) {
    node.open = '<abbr' + attr + '>';
  }
}))

.toAttribs

Stringify the attribs for a node.

Params

• attribs {Object}: Object of attributes to stringify
• names {Array}: Array of names to only stringify attributes with those names.
• returns {String}: Returns a string of attributes, e.g. src="foo.jpg"

Example

var str = utils.toAttribs(node.attribs);

.getLang

Attempt to get a "language" value from the given attribs. Used with code/pre tags.

Params

• attribs {Object}: The node.attribs object
• returns {String}

Example

breakdance.set('code', function(node) {
  var lang = utils.getLang(node.attribs);
  // console.log(lang);
});

.formatLink

Formats the link part of a "src" or "href" attribute on the given node.

Params

• node {Object}
• key {String}: Either 'src' or 'href'
• compiler {Object}: Pass the breakdance compiler instance, for state and options.
• returns {String}

Example

// this is how <img> tags are rendered
breakdance.set('img', function(node) {
  var attribs = node.attribs || {};
  if (attribs.src) {
    this.emit('![' + (attribs.alt || '').trim());
    this.mapVisit(node);
    var src = utils.formatLink(node, 'src', this);
    this.emit(']' + src);
    //=> ![foo](bar.jpg)
  }
})

About

Contributing

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

Please read the contributing guide for advice on opening issues, pull requests, and coding standards.

Building docs

(This project's readme.md is generated by verb, please don't edit the readme directly. Any changes to the readme must be made in the .verb.md readme template.)

To generate the readme, run the following command:

$ npm install -g verbose/verb#dev verb-generate-readme && verb

Running tests

Running and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:

$ npm install && npm test

Author

Jon Schlinkert

• github/jonschlinkert
• twitter/jonschlinkert

License

Copyright © 2017, Jon Schlinkert. MIT

This file was generated by verb-generate-readme, v0.4.2, on February 04, 2017.