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cacjs avatar

cacjs/cac

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Cac

cac is a Node.js CLI framework used to build command line interfaces with a declarative API. It functions as a command line argument parser and a command dispatcher that maps terminal input keywords to specific JavaScript callback functions.

The framework features an automated help generator that produces usage instructions and version documentation based on the defined command structures. It manages command aliases and provides a routing system to link specific keyword inputs to execution logic.

The toolkit covers command interface definition, including the configuration of global and command-specific options. It supports argument mapping for required, optional, and variadic parameters, and includes a fallback mechanism to handle default commands when no registered keywords match.

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Features

  • CLI Frameworks - Provides a declarative API for defining commands and options to handle structured terminal input.
  • Argument Parsing - Clack extracts flags and positional arguments from input and converts them into a structured data object.
  • CLI Argument Mapping - Maps user input to specific commands using required, optional, and variadic parameters.
  • Command Callbacks - Links specific keyword inputs to JavaScript callback functions that execute business logic.
  • Application Command Dispatchers - Maps terminal input keywords and aliases to specific JavaScript callback functions for command execution.
  • Command-Line Argument Parsers - Processes command line inputs sequentially to separate flags from positional arguments.
  • Help Generators - Automatically generates terminal-friendly usage instructions and version information from defined commands.
  • Help Text Generators - Automatically constructs and formats usage instructions and version documentation for terminal tools.
  • Keyword-Based Command Dispatchers - Matches terminal input keywords against registered command names and aliases to trigger callback functions.
  • Default Command Fallbacks - Executes a designated default action when no registered command matches the user input.
  • Variadic Argument Support - Collects multiple trailing positional arguments into a single array for a specific command.
  • Command Flag Configurations - Enables configuration of global and command-specific flags with default values and validation.
  • Node.js CLI Tooling - Facilitates the creation of custom developer utilities and scripts with complex flag configurations and subcommands.
  • Command Aliases - Assigns multiple trigger names to a single command action to support different naming conventions.
  • Fluent Configuration APIs - Provides a chainable, fluent interface for defining commands and options before parsing input.
  • CLI Frameworks - Framework for building CLI applications.
  • Command Line Tools - Simple yet powerful framework for building command-line apps.
2,923 stars·110 forks·TypeScript·mit·35 views

Star history

Star history chart for cacjs/cacStar history chart for cacjs/cac

How this analysis was created: This summary and feature list are AI-generated from collected project material and can contain mistakes. Stars, license and language are imported from GitHub. Inclusion does not mean that we have tested or audited this project. Check the source documentation for any feature you depend on. Learn more on our About page.

Frequently asked questions

What does cacjs/cac do?

cac is a Node.js CLI framework used to build command line interfaces with a declarative API. It functions as a command line argument parser and a command dispatcher that maps terminal input keywords to specific JavaScript callback functions.

What are the main features of cacjs/cac?

The main features of cacjs/cac are: CLI Frameworks, Argument Parsing, CLI Argument Mapping, Command Callbacks, Application Command Dispatchers, Command-Line Argument Parsers, Help Generators, Help Text Generators.

Which projects share features with cacjs/cac?

Projects with overlapping indexed features include: yargs/yargs — yargs is a command-line interface framework and argument parser for Node.js. It translates raw command-line strings… fastapi/typer — This project is a Python framework for building command-line interfaces by converting standard functions into… clap-rs/clap — Clap is a command-line argument parser for Rust that enables developers to define complex interfaces through… oclif/oclif — oclif is a Node.js framework for building command-line interfaces. It provides a structured system for developing… urfave/cli — This is a framework for building structured terminal applications in Go. It provides the core components necessary to… tj/commander.js — Commander.js is a framework for building command-line interfaces and terminal applications. It functions as an…

Projects sharing features with Cac

These projects share indexed features with Cac. Shared tags can include platform or build tooling; verify the primary use case before treating a result as a replacement.
  • yargs/yargsyargs avatar

    yargs/yargs

    11,492View on GitHub↗

    yargs is a command-line interface framework and argument parser for Node.js. It translates raw command-line strings into structured JavaScript objects, providing a toolkit for building terminal applications with nested sub-commands, dedicated handlers, and a structured user interface. The framework distinguishes itself through automated help text generation, which constructs formatted usage menus and instructions based on registered metadata. It also provides shell completion generation for Bash and Zsh and uses string-distance algorithms to offer typo correction suggestions when invalid inpu

    JavaScript
    View on GitHub↗11,492
  • fastapi/typerfastapi avatar

    fastapi/typer

    19,632View on GitHub↗

    This project is a Python framework for building command-line interfaces by converting standard functions into executable programs. It uses type hints to automatically infer and generate argument parsers, validation logic, and help documentation, allowing developers to define complex terminal applications through simple function signatures. The framework distinguishes itself through a decorator-driven registration system that enables the construction of hierarchical command trees. It supports dependency injection to manage shared state and runtime configuration across subcommands, and it utili

    Pythoncliclickpython
    View on GitHub↗19,632
  • clap-rs/clapclap-rs avatar

    clap-rs/clap

    16,528View on GitHub↗

    Clap is a command-line argument parser for Rust that enables developers to define complex interfaces through strongly-typed data structures. It functions as a comprehensive framework for building terminal applications, automating the transformation of raw string inputs into validated, type-safe code representations while simultaneously generating help documentation and usage statements. The library distinguishes itself by offering both a declarative, attribute-based approach and a fluent builder-pattern API, allowing for flexible interface construction. It includes a sophisticated validation

    Rustargument-parserargument-parsingcommand-line
    View on GitHub↗16,528
  • oclif/oclifoclif avatar

    oclif/oclif

    9,543View on GitHub↗

    oclif is a Node.js framework for building command-line interfaces. It provides a structured system for developing terminal applications with consistent command patterns, argument parsing, and automated help generation. The project features a modular plugin architecture that allows for external functionality to be injected via a manifest-based loading mechanism. It includes a dedicated distribution pipeline and packager to bundle applications into OS-native installers and tarballs for Windows, macOS, and Linux. The framework covers a broad range of development capabilities, including project

    TypeScript
    View on GitHub↗9,543
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