38 lines
1.3 KiB
Rust
38 lines
1.3 KiB
Rust
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//! Example using Repl without Context (or, more precisely, a Context of ())
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use reedline_repl_rs::clap::{Arg, ArgMatches, Command};
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use reedline_repl_rs::{Repl, Result};
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/// Add two numbers. Have to make this generic to be able to pass a Context of type ()
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fn add<T>(args: ArgMatches, _context: &mut T) -> Result<Option<String>> {
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let first: i32 = args.value_of("first").unwrap().parse()?;
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let second: i32 = args.value_of("second").unwrap().parse()?;
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Ok(Some((first + second).to_string()))
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}
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/// Write "Hello"
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fn hello<T>(args: ArgMatches, _context: &mut T) -> Result<Option<String>> {
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Ok(Some(format!("Hello, {}", args.value_of("who").unwrap())))
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}
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fn main() -> Result<()> {
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let mut repl = Repl::new(())
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.with_name("MyApp")
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.with_version("v0.1.0")
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.with_description("My very cool app")
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.with_command(
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Command::new("add")
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.arg(Arg::new("first").required(true))
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.arg(Arg::new("second").required(true))
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.about("Add two numbers together"),
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add,
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)
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.with_command(
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Command::new("hello")
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.arg(Arg::new("who").required(true))
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.about("Greetings!"),
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hello,
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);
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repl.run()
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}
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