ruby-tools 0.0.0

//! RI (Ruby Information) 文档查看器
//! 在终端中查看 Ruby 类、方法等的文档

use std::env;

fn main() {
    let args: Vec<String> = env::args().collect();
    let query = if args.len() > 1 {
        args[1..].join(" ")
    } else {
        String::new()
    };

    println!("ri - Ruby documentation viewer");

    if query.is_empty() {
        println!("Usage: ri <class|method|module>");
        println!("Example: ri String#length");
        println!("         ri Array");
        return;
    }

    lookup_documentation(&query);
}

fn lookup_documentation(query: &str) {
    println!("Looking up documentation for: {}", query);

    // 模拟文档查找逻辑
    match query {
        "String" => {
            println!("\n= String");
            println!("\nRuby's String class represents character strings.");
            println!("\nMethods:");
            println!("  length() - Returns the length of the string");
            println!("  empty?() - Returns true if the string is empty");
            println!("  upcase() - Returns a new string with all uppercase letters");
            println!("  downcase() - Returns a new string with all lowercase letters");
        }
        "String#length" => {
            println!("\n= String#length");
            println!("\nReturns the length of the string.");
            println!("\nExamples:");
            println!("  'hello'.length  # => 5");
            println!("  ''.length       # => 0");
        }
        "Array" => {
            println!("\n= Array");
            println!("\nRuby's Array class represents ordered, integer-indexed collections of any object.");
            println!("\nMethods:");
            println!("  length() - Returns the number of elements in the array");
            println!("  push() - Appends an object to the end of the array");
            println!("  pop() - Removes and returns the last element of the array");
            println!("  each() - Calls the given block once for each element");
        }
        "Array#each" => {
            println!("\n= Array#each");
            println!("\nCalls the given block once for each element in self.");
            println!("\nExamples:");
            println!("  [1, 2, 3].each {{ |i| puts i }}  # prints 1, 2, 3");
        }
        _ => {
            println!("Documentation not found for: {}", query);
            println!("Try another query or run 'ri' for usage.");
        }
    }
}