Parsers and Combinators

cmd-ts can help you build a full command line application, with nested commands, options, arguments, and whatever you want. One of the secret sauces baked into cmd-ts is the ability to compose parsers.

Argument Parser

An argument parser is a simple struct with a parse function and an optional register function.

cmd-ts is shipped with a couple of parsers and combinators to help you build your dream command-line app. subcommands are built using nested commands. Every command is built with flag, option and positional arguments. Here is a short parser description:

• positional and restPositionals to read arguments by position
• option and multioption to read binary --key value arguments
• flag and multiflag to read unary --key arguments
• command to compose multiple arguments into a command line app
• subcommands to compose multiple command line apps into one command line app
• binary to make a command line app a UNIX-executable-ready command