mirror of
https://github.com/clap-rs/clap
synced 2024-12-15 07:12:32 +00:00
32b5520ff1
mitsuhiko immediately jumped into the examples and got tripped up by the lack of documentation on feature flags needed. I limited this to just the root ones because the rest are in a more proper tutorial that steps through it all.
641 B
641 B
Jump to source
This requires enabling the derive feature flag.
$ keyvalue_derive --help
clap
USAGE:
keyvalue_derive[EXE] [OPTIONS]
OPTIONS:
-D <DEFINES>
-h, --help Print help information
$ keyvalue_derive -D Foo=10 -D Alice=30
Args { defines: [("Foo", 10), ("Alice", 30)] }
$ keyvalue_derive -D Foo
? failed
error: Invalid value for '-D <DEFINES>': invalid KEY=value: no `=` found in `Foo`
For more information try --help
$ keyvalue_derive -D Foo=Bar
? failed
error: Invalid value for '-D <DEFINES>': invalid digit found in string
For more information try --help