Pseudo Cheerio

:pseudo-class support for the Cheerio NodeJS module.

Supported Pseudo Class Selectors

These all map to the equivalent Cheerio traversing function:

• :parent([selector])
• :parents([selector])
• :closest([selector])
• :next([selector])
• :nextAll([selector])
• :prev([selector])
• :prevAll([selector])
• :slice( start, [end] )
• :siblings([selector])
• :children([selector])
• :contents
• :filter([selector])
• :not(selector)
• :has(selector)
• :first
• :last
• :eq(i)
• :add(selector)

Usage

Importing:

const cheerio = require('cheerio');
const pcheerio = require('pseudo-cheerio');

const $ = cheerio.load(html);

Querying:

pcheerio.find($, '#main table:first tbody tr');
pcheerio.find($, 'table tr:slice(1, 5)');

This is the same as:

$('#main table').first().find('tbody tr');
$('table tr').slice(1, 5);

API

.find( $, selector, context, extra_pseudos )

Return the result of selector searching the given $ content within the optional context. Support the extra_pseudos if they are specified.

• $ - loaded cheerio content
• selector - string - a cheerio selector, but may have supported pseudo-classes
• context - cheerio context - optional context
• extra_pseudos - plain object { name: func } - optional overrides to the pseudo-cheerio.PSEUDOS object

.extract( content, config ) (EXPERIMENTAL)

Return an array of data extracted from the HTML string content based on the specified config.

The config parameter looks like:

{
  rows: [selector - String - e.g., '#s-date table:first tbody tr'],
  fields: {
    [name]: [selector - String - e.g., 'td:eq(0)'],
    ...
}

NOTE: this function creates the dependency on cheerio. It might make sense to remove this so a specific cheerio dep can be decoupled from this project?

Misc

There’s an existing package that does basically the same thing called cheerio-advanced-selectors.