feat: support role args (#69)

* feat: support role args

We can use role args to pass some additional arguments to the prompt.

```
- name: convert:json:yaml
  prompt: convert __ARG1__ below to __ARG2__
```

`:json:yaml` is `role args`. It has two args:

- arg1 `json`, it will replace __ARG1__ in prompt
- arg2 `yaml`, it will replace __ARG2__ in prompt

```
〉.role convert:json:yaml
name: convert:json:yaml
prompt: convert json below to yaml
temperature: null

〉.role convert:yaml:json
name: convert:yaml:json
prompt: convert yaml below to json
temperature: null
```

different role args,  will generate different prompts.

* small updates

1 files changed, 2 insertions, 1 deletions

diff --git a/src/repl/init.rs b/src/repl/init.rs
index ae337ee..c8bb4c3 100644
--- a/src/repl/init.rs
+++ b/src/repl/init.rs
@@ -47,7 +47,8 @@ impl Repl {
     fn create_completer(config: SharedConfig, commands: &[String]) -> DefaultCompleter {
         let mut completion = commands.to_vec();
         completion.extend(config.read().repl_completions());
-        let mut completer = DefaultCompleter::with_inclusions(&['.', '-', '_']).set_min_word_len(2);
+        let mut completer =
+            DefaultCompleter::with_inclusions(&['.', '-', '_', ':']).set_min_word_len(2);
         completer.insert(completion.clone());
         completer
     }