zflags

A gflags style implementation based clap

Example:

```

[macro_use]

extern crate zflags;

static V1: zflags::optv = option!(None, "x", "exec", None, 8, None); static V2: zflags::optv = option!("fi", "x", "exec", None, None, "help"); static V3: zflags::optv = option!("s2", "x", "exec", "file", "ls", None);

mod sub { static V: zflags::optv = option!(None, "d", None, "day", "1970-1-1", "default date"); pub fn print() { let date = V.str().unwrap(); println!("date {}", date); } }

fn main() { option_parse!("clap", "v0.1.0"); let s1: i32 = V1.parse().unwrap(); println!("{}", s1);

match V2.parse::<String>() {
    Ok(n) => println!("fi -x {}", n),
    Err(s) => println!("{}", s),
}

match V3.str() {
    Ok(n) => println!("s2 -x {}", n),
    Err(s) => println!("{}", s),
}

} ```

output:

zylthinking@linux:~/code/flags/tests$ ./clap -h clap v0.1.0

USAGE: clap [OPTIONS] [SUBCOMMAND]

FLAGS: -h, --help Prints help information -V, --version Prints version information

OPTIONS: -x, --exec [default: 8] -d default date [default: "1970-1-1"]

SUBCOMMANDS: fi
help Prints this message or the help of the given subcommand(s) s2