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Merge pull request #1591 from clap-rs/issue-1589

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fixes the custom derive example in the readme
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Kevin K 2019-10-30 21:54:37 -04:00 committed by GitHub
commit 2af7c7ca34
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1 changed files with 15 additions and 11 deletions
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README.md
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@ -176,22 +176,26 @@ struct Opts {
/// Some input. Because this isn't an Option<T> it's required to be used /// Some input. Because this isn't an Option<T> it's required to be used
input: String, input: String,
/// A level of verbosity, and can be used multiple times /// A level of verbosity, and can be used multiple times
#[clap(short = "v", long = "verbose", parse_from_occurrences)] #[clap(short = "v", long = "verbose", parse(from_occurrences))]
verbose: Option<i32>, verbose: i32,
#[clap(subcommand)] #[clap(subcommand)]
subcmd: SubCommand, subcmd: SubCommand,
} }
#[derive(Clap)] #[derive(Clap)]
enum SubCommand { enum SubCommand {
/// A subcommand for controlling testing Test(Test),
#[clap(name = "test", version = "1.3", author = "Someone Else")] }
Test {
/// A subcommand for controlling testing
#[derive(Clap)]
#[clap(name = "test", version = "1.3", author = "Someone Else")]
Test {
/// Print debug info /// Print debug info
#[clap(short = "d")] #[clap(short = "d")]
debug: bool debug: bool
}
} }
fn main() { fn main() {
let opts: Opts = Opts::parse(); let opts: Opts = Opts::parse();
@ -201,7 +205,7 @@ fn main() {
// Vary the output based on how many times the user used the "verbose" flag // Vary the output based on how many times the user used the "verbose" flag
// (i.e. 'myprog -v -v -v' or 'myprog -vvv' vs 'myprog -v' // (i.e. 'myprog -v -v -v' or 'myprog -vvv' vs 'myprog -v'
match opts.verbose.unwrap_or(0) { match opts.verbose {
0 => println!("No verbose info"), 0 => println!("No verbose info"),
1 => println!("Some verbose info"), 1 => println!("Some verbose info"),
2 => println!("Tons of verbose info"), 2 => println!("Tons of verbose info"),
@ -211,7 +215,7 @@ fn main() {
// You can handle information about subcommands by requesting their matches by name // You can handle information about subcommands by requesting their matches by name
// (as below), requesting just the name used, or both at the same time // (as below), requesting just the name used, or both at the same time
match opts.subcmd { match opts.subcmd {
SubCommand::Test @ t => { SubCommand::Test(t) => {
if t.debug { if t.debug {
println!("Printing debug info..."); println!("Printing debug info...");
} else { } else {