Minimal yaml not working

[tvannahl]

I tried to replicate the first yaml example in the docs and it didn't work out as expected. This should probably get fixed, it doesn't make a good impression.

$ RUST_BACKTRACE=1 ./target/debug/minimal --help                                                                                                              :(
thread 'main' panicked at 'Failed to convert YAML value Real("1.0") to a string', /home/tvn/.cargo/registry/src/github.com-1ecc6299db9ec823/clap-2.16.2/src/app/mod.rs:1398
stack backtrace:
   1:     0x563c69115f79 - std::sys::backtrace::tracing::imp::write::h00e948915d1e4c72
   2:     0x563c6911921c - std::panicking::default_hook::_{{closure}}::h7b8a142818383fb8
   3:     0x563c691184c9 - std::panicking::default_hook::h41cf296f654245d7
   4:     0x563c69118b58 - std::panicking::rust_panic_with_hook::h4cbd7ca63ce1aee9
   5:     0x563c691189b2 - std::panicking::begin_panic::h93672d0313d5e8e9
   6:     0x563c69118920 - std::panicking::begin_panic_fmt::hd0daa02942245d81
   7:     0x563c69073333 - _<clap..app..App<'a, 'a> as core..convert..From<&'a yaml_rust..yaml..Yaml>>::from::h37e3b667477dea17
                        at /home/tvn/.cargo/registry/src/github.com-1ecc6299db9ec823/clap-2.16.2/src/app/mod.rs:8
   8:     0x563c6906ea0b - clap::app::App::from_yaml::hf9783d7fffaecb54
                        at /home/tvn/.cargo/registry/src/github.com-1ecc6299db9ec823/clap-2.16.2/src/app/mod.rs:149
   9:     0x563c68f6652e - minimal::main::h3c17b90fce13964a
                        at /home/tvn/projects/rust/minimal/src/main.rs:8
  10:     0x563c6911f086 - __rust_maybe_catch_panic
  11:     0x563c69117c42 - std::rt::lang_start::h53bf99b0829cc03c
  12:     0x563c68f66613 - main
  13:     0x7f05031d5290 - __libc_start_main
  14:     0x563c68f5f729 - _start
  15:                0x0 - <unknown>

[kbknapp]

This is a typo in the examples! Thanks for pointing it out! The number should be enclosed in quotes.

[kbknapp]

I'm having an issue reproducing this - could you post the source you're using?

[tvannahl]

I used the example that can be seen in the README.md

name: myapp
version: 1.0
author: Kevin K. <kbknapp@gmail.com>
about: Does awesome things
args:
    - config:
        short: c
        long: config
        value_name: FILE
        help: Sets a custom config file
        takes_value: true
    - INPUT:
        help: Sets the input file to use
        required: true
        index: 1
    - verbose:
        short: v
        multiple: true
        help: Sets the level of verbosity
subcommands:
    - test:
        about: controls testing features
        version: 1.3
        author: Someone E. <someone_else@other.com>
        args:
            - debug:
                short: d
                help: print debug information

The example should probably be (note the version entries):

name: myapp
version: "1.0"
author: Kevin K. <kbknapp@gmail.com>
about: Does awesome things
args:
    - config:
        short: c
        long: config
        value_name: FILE
        help: Sets a custom config file
        takes_value: true
    - INPUT:
        help: Sets the input file to use
        required: true
        index: 1
    - verbose:
        short: v
        multiple: true
        help: Sets the level of verbosity
subcommands:
    - test:
        about: controls testing features
        version: "1.3"
        author: Someone E. <someone_else@other.com>
        args:
            - debug:
                short: d
                help: print debug information

[kbknapp]

Ah ok thanks! I was looking at the examples/ directory.