cheeriojs/cheerio
Cheerio
Cheerio is an HTML and XML parsing library and server-side DOM implementation. It functions as a markup manipulation tool and CSS selector engine, allowing users to parse, query, and modify HTML or XML documents in non-browser environments.
The project provides a DOM-like tree representation of markup strings, enabling programmatic addition, removal, and modification of elements and attributes. It features a prototype-based plugin system that allows the extension of core functionality by adding custom methods to the document prototype.
The library covers a broad range of capabilities including CSS selector querying, recursive tree traversal, and element collection filtering. It also includes utilities for attribute manipulation, CSS class management, node positioning, and the rendering of manipulated trees back into serialized HTML or XML strings.
Features
- Markup Parsers - Transforms raw HTML and XML strings into a structured data format using a dedicated parsing engine.
- HTML and XML Parsing - Transforms HTML or XML strings into a traversable data structure for analysis and modification.
- HTML Parsing - Provides capabilities for converting raw HTML strings into a traversable structure for analysis and transformation.
- HTML Manipulation - Updates HTML or XML content by adding, removing, or changing elements and attributes.
- Markup Extraction - Converts modified documents or specific selections into HTML, outer HTML, or plain text formats.
- Content Extraction - Retrieves combined text content or inner HTML strings from targeted elements.
- Output Format Rendering - Renders internal node trees back into serialized HTML or XML strings for final output.
- Web Data Extraction - Facilitates extracting structured data and text from HTML or XML pages using precise CSS selectors.
- DOM Traversers - Navigates the document hierarchy using parent, sibling, and child relationships to locate related elements.
- CSS Selector Engines - Implements a CSS-style selector engine to query and locate elements within HTML and XML document structures.
- Structural Navigation - Enables navigation of the document hierarchy through recursive traversal of parent, child, and sibling node pointers.
- In-Memory DOM Representations - Provides an in-memory DOM representation of markup strings for efficient navigation and manipulation.
- Content Manipulation - Replaces the internal HTML or text of matched elements with new provided strings.
- DOM Node Positioning - Inserts, appends, prepends, or replaces elements and content at precise positions within the document tree.
- Element Attributes - Provides methods to retrieve, set, and remove properties and data attributes from matched elements.
- Static String Renderers - Converts a manipulated document tree back into a static HTML or XML string for final output.
- Dynamic Class Management - Provides utilities to add, remove, toggle, and verify CSS classes on matched elements.
- Collection Filtering - Refines sets of matched elements by including or excluding items based on selectors or predicate functions.
- Content Processing - Enables programmatic parsing and updating of static HTML files to automate the injection of links and metadata.
- DOM Manipulation - Fast, flexible jQuery-like DOM manipulation.
- General Utilities - Server-side implementation of jQuery.
- Node.js Frameworks and Tools - Server-side jQuery implementation.
