Add a rich command-line argument parsing library. (#2978)

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This library is designed around supporting the kinds of use cases we
expect in the toolchain and other Carbon tools. It supports subcommands,
options, and prints help.

There is still a decent chunk of work to be done to finish polishing
this, but it should give us a solid starting point.

For details about the library and a brief roadmap, see the main comment
in `command_line.h` which provides a comprehensive overview of the
library and a roadmap of the remaining work.

Porting the driver to this went fairly well, but did require some
changes. That port is separated into a follow-up PR #2979.

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Co-authored-by: Jon Ross-Perkins <jperkins@google.com>
Co-authored-by: Lucile Rose Nihlen <luci.the.rose@gmail.com>
Co-authored-by: Richard Smith <richard@metafoo.co.uk>

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This commit is contained in:

Chandler Carruth

2023-08-16 17:15:55 +00:00

committed by GitHub

co-authored by Jon Ross-Perkins Lucile Rose Nihlen Richard Smith

parent 09242eeebd

commit db91db9097

4 changed files with 3313 additions and 0 deletions

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common/command_line.cpp

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