nodeca/js-yaml
Js Yaml
js-yaml is a JavaScript library providing a programmatic interface for parsing and dumping YAML data. It functions as a parser and serializer that converts YAML strings into JavaScript objects and transforms JavaScript objects back into YAML format.
The library includes a command-line interface for parsing or dumping YAML data via direct input or data pipes. It also features an abstract syntax tree transformer to modify the structure of data during serialization.
The project provides capabilities for multi-document processing and the definition of custom schemas and tags to handle specialized data types. For security, it incorporates parser safety controls, including document complexity validation and recursion depth limits, to prevent resource exhaustion when processing untrusted input.
Features
- YAML Parsers - Provides a full-featured library for reading and writing YAML formatted data in JavaScript.
- YAML Serializers - Provides a comprehensive library for serializing JavaScript objects into structured YAML documents.
- YAML Type Handlers - Allows external definition of tag handlers to extend the parser and dumper with domain-specific data types.
- YAML Type Extensions - Supports extending the parser and serializer with custom tags and schemas to handle specialized data types.
- YAML-to-Object Mapping - Transforms YAML strings into JavaScript objects using configurable schemas and depth limits.
- YAML Data Serialization - Transforms JavaScript objects into YAML strings for exporting data or generating human-readable configuration files.
- YAML Libraries - Provides a programmatic interface for parsing and dumping YAML data within JavaScript environments.
- Parsing Depth Limits - Provides constraints on maximum nesting levels to prevent stack overflow and resource exhaustion during YAML parsing.
- YAML Tag Customization - Defines how scalars, sequences, or mappings are represented when loading and dumping specialized data types.
- YAML Configuration Schemas - Provides a system for defining custom YAML schemas to support specialized data types and tags.
- YAML Type Resolution Rules - Maps YAML tags to JavaScript constructors using a predefined set of rules for scalars, sequences, and mappings.
- Multi-Document YAML Processing - Extracts and manages multiple separate data documents stored within a single YAML source file.
- Recursive Descent Parsers - Utilizes a recursive descent parsing engine to translate YAML text into JavaScript objects.
- YAML AST Transformers - Implements a system for modifying the abstract syntax tree during the serialization of objects into YAML strings.
- YAML Serialization AST Transformations - Modifies the abstract syntax tree during serialization to alter the output before it is rendered.
- YAML Serialization ASTs - Implements an intermediate AST structure to transform JavaScript objects before rendering the final YAML string.
- YAML Command Line Interfaces - Provides a command-line interface for parsing and dumping YAML data via direct input or data pipes.
- Parser Resource Limits - Implements node counting to reject overly complex documents and prevent resource exhaustion.
- YAML Configuration Files - Converts YAML configuration files into JavaScript objects for application settings and environment variables.
- Multi-Document YAML Parsing - Extracts multiple documents from a single source string and returns them as an array of objects.
- Indentation-Aware Tokenization - Breaks input strings into tokens based on indentation and character-level markers.
- Parsing Tools - Fast YAML parser.
- Parsing Utilities - Fast YAML parser.
Star history
How this analysis was created: This summary and feature list were written by an AI model that read the project's README and public documentation pages. Each feature links to the documentation it came from; stars, license and language come straight from the GitHub API. The model does not read the source code, and the analysis is refreshed when the project is re-analysed. Learn more on our About page.
