rohas-codegen 0.1.0

Code generator for Rohas, creating type-safe interfaces and handler stubs
Documentation 
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/// Convert snake_case to PascalCase
pub fn to_pascal_case(s: &str) -> String {
    s.split('_')
        .map(|word| {
            let mut chars = word.chars();
            match chars.next() {
                None => String::new(),
                Some(first) => first.to_uppercase().chain(chars).collect(),
            }
        })
        .collect()
}

/// Convert PascalCase to snake_case
pub fn to_snake_case(s: &str) -> String {
    let mut result = String::new();
    let mut chars = s.chars().peekable();

    while let Some(ch) = chars.next() {
        if ch.is_uppercase() {
            if !result.is_empty() {
                result.push('_');
            }
            result.push(ch.to_lowercase().next().unwrap());
        } else {
            result.push(ch);
        }
    }

    result
}

/// Convert PascalCase to kebab-case
pub fn to_kebab_case(s: &str) -> String {
    to_snake_case(s).replace('_', "-")
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn test_to_pascal_case() {
        assert_eq!(to_pascal_case("hello_world"), "HelloWorld");
        assert_eq!(to_pascal_case("user_created"), "UserCreated");
    }

    #[test]
    fn test_to_snake_case() {
        assert_eq!(to_snake_case("HelloWorld"), "hello_world");
        assert_eq!(to_snake_case("UserCreated"), "user_created");
    }

    #[test]
    fn test_to_kebab_case() {
        assert_eq!(to_kebab_case("HelloWorld"), "hello-world");
        assert_eq!(to_kebab_case("UserCreated"), "user-created");
    }
}