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#[allow(unused)]
use std::{ffi::OsString, path::PathBuf};
#[derive(Debug)]
pub struct RepeatedPos {
pub a: PathBuf,
pub b: Option<u32>,
pub c: Option<OsString>,
pub rest: Vec<OsString>,
}
impl RepeatedPos {
#[allow(dead_code)]
pub fn from_env_or_exit() -> Self {
Self::from_env_or_exit_()
}
#[allow(dead_code)]
pub fn from_env() -> xflags::Result<Self> {
Self::from_env_()
}
#[allow(dead_code)]
pub fn from_vec(args: Vec<std::ffi::OsString>) -> xflags::Result<Self> {
Self::from_vec_(args)
}
}
impl RepeatedPos {
fn from_env_or_exit_() -> Self {
Self::from_env_().unwrap_or_else(|err| err.exit())
}
fn from_env_() -> xflags::Result<Self> {
let mut p = xflags::rt::Parser::new_from_env();
Self::parse_(&mut p)
}
fn from_vec_(args: Vec<std::ffi::OsString>) -> xflags::Result<Self> {
let mut p = xflags::rt::Parser::new(args);
Self::parse_(&mut p)
}
}
impl RepeatedPos {
fn parse_(p_: &mut xflags::rt::Parser) -> xflags::Result<Self> {
#![allow(non_snake_case, unused_mut)]
let mut a = (false, Vec::new());
let mut b = (false, Vec::new());
let mut c = (false, Vec::new());
let mut rest = (false, Vec::new());
let mut state_ = 0u8;
while let Some(arg_) = p_.pop_flag() {
match arg_ {
Ok(flag_) => match (state_, flag_.as_str()) {
(0, "--help" | "-h") => return Err(p_.help(Self::HELP_)),
_ => return Err(p_.unexpected_flag(&flag_)),
},
Err(arg_) => match (state_, arg_.to_str().unwrap_or("")) {
(0, _) => {
if let (done_ @ false, buf_) = &mut a {
buf_.push(arg_.into());
*done_ = true;
continue;
}
if let (done_ @ false, buf_) = &mut b {
buf_.push(p_.value_from_str::<u32>("b", arg_)?);
*done_ = true;
continue;
}
if let (done_ @ false, buf_) = &mut c {
buf_.push(arg_.into());
*done_ = true;
continue;
}
if let (false, buf_) = &mut rest {
buf_.push(arg_.into());
continue;
}
return Err(p_.unexpected_arg(arg_));
}
_ => return Err(p_.unexpected_arg(arg_)),
},
}
}
Ok(RepeatedPos {
a: p_.required("a", a.1)?,
b: p_.optional("b", b.1)?,
c: p_.optional("c", c.1)?,
rest: rest.1,
})
}
}
impl RepeatedPos {
const HELP_: &'static str = "\
RepeatedPos
ARGS:
<a>
[b]
[c]
<rest>...
OPTIONS:
-h, --help
Prints help information.
";
}
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