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https://github.com/clap-rs/clap
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bfa02fd418
This ports our example testing over to [trycmd](https://docs.rs/) so we can: - More thoroughly test our examples - Provide always-up-to-date example usage The old way of testing automatically picked up examples. This new way requires we have a `.md` file that uses the example in some way. Notes: - Moved overall example description to the `.md` file - I added cross-linking between related examples - `14_groups` had a redundant paragraph (twice talked about "one and only one"
1.1 KiB
1.1 KiB
You can use -- to escape further arguments.
Let's see what this looks like in the help:
$ 22_stop_parsing_with_-- --help
myprog
USAGE:
22_stop_parsing_with_--[EXE] [OPTIONS] [-- <slop>...]
ARGS:
<slop>...
OPTIONS:
-f
-h, --help Print help information
-p <pea>
Here is a baseline without any arguments:
$ 22_stop_parsing_with_--
-f used: false
-p's value: None
'slops' values: None
Notice that we can't pass positional arguments before --:
$ 22_stop_parsing_with_-- foo bar
? failed
error: Found argument 'foo' which wasn't expected, or isn't valid in this context
USAGE:
22_stop_parsing_with_--[EXE] [OPTIONS] [-- <slop>...]
For more information try --help
But you can after:
$ 22_stop_parsing_with_-- -f -p=bob -- sloppy slop slop
-f used: true
-p's value: Some("bob")
'slops' values: Some(["sloppy", "slop", "slop"])
As mentioned, the parser will directly pass everything through:
$ 22_stop_parsing_with_-- -- -f -p=bob sloppy slop slop
-f used: false
-p's value: None
'slops' values: Some(["-f", "-p=bob", "sloppy", "slop", "slop"])