ch57x-keyboard-tool 1.2.3

Command-line tool for programming ch57x keyboard
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use std::num::ParseIntError;

use clap::{Parser, Subcommand};
use crate::consts::{VENDOR_ID, PRODUCT_ID};
use crate::parse;

#[derive(Parser)]
pub struct Options {
    #[command(subcommand)]
    pub command: Command,

    #[arg(long, default_value_t=VENDOR_ID, value_parser=hex_or_decimal)]
    pub vendor_id: u16,

    #[arg(long, default_value_t=PRODUCT_ID, value_parser=hex_or_decimal)]
    pub product_id: u16,

    #[arg(long, value_parser=parse_address)]
    pub address: Option<(u8, u8)>,
}

pub fn hex_or_decimal(s: &str) -> Result<u16, ParseIntError>
{
    if s.to_ascii_lowercase().starts_with("0x") {
        u16::from_str_radix(&s[2..], 16)
    } else {
        u16::from_str_radix(s, 10)
    }
}

fn parse_address(s: &str) -> std::result::Result<(u8, u8), nom::error::Error<String>> {
    parse::from_str(parse::address, s)
}

#[derive(Subcommand)]
pub enum Command {
    /// Show supported keys and modifiers
    ShowKeys,

    /// Validate key mappings config on stdin
    Validate,

    /// Upload key mappings from stdin to device
    Upload,

    /// Select LED backlight mode
    Led(LedCommand),
}

#[derive(Parser)]
pub struct LedCommand {
    /// Index of LED mode (zero-based)
    pub index: u8,
}