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Seeing this got me curious to know if any work has been done on generating completions for applications that make use of the clap command-line argument parser.

• JoshMcguigan 7y ago
  I did come across this work by clap while doing research for this post. The major difference in strategy is that clap is generating completion scripts in Bash, while shell_completion is a library which helps writing completion scripts in Rust. I think one exciting bit of future potential for shell_completion is it could potentially allow building something like what clap has done using the standard Rust macro system. In any event, thanks for bringing this up.
• snowe2010 7y ago
  I actually wrote a library that generates completions for both zsh and bash for the Ruby Thor CLI library. https://github.com/snowe2010/fylla/ https://github.com/snowe2010/fylla/ This could be useful in research to make it work for clap. I wrote two articles that kind of highlight the differences in completions between the two, but only in regards to subcommands, since that's what I was trying to cover. https://tylerthrailkill.com/2019-01-19/writing-bash-completion-script-with-subcommands/ https://tylerthrailkill.com/2019-01-19/writing-bash-completi... https://tylerthrailkill.com/2019-01-13/writing-zsh-completion-scripts/ https://tylerthrailkill.com/2019-01-13/writing-zsh-completio...