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22 lines
757 B
Rust
22 lines
757 B
Rust
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/* jaarg - Argument parser
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* SPDX-FileCopyrightText: (C) 2025 Gay Pizza Specifications
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* SPDX-License-Identifier: MIT
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*/
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extern crate std;
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use crate::{HandlerResult, Opt, Opts, ParseControl, ParseResult};
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impl<ID: 'static> Opts<ID> {
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/// Wrapper around `parse` that gathers arguments from the command line and prints errors to stderr.
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///
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/// Requires std
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pub fn parse_env<'a>(&self, handler: impl FnMut(&ID, &Opt<ID>, &str, &str) -> HandlerResult<'a, ParseControl>
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) -> ParseResult {
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let mut argv = std::env::args();
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let argv0 = argv.next().unwrap();
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let program_name = std::path::Path::new(&argv0).file_name().unwrap().to_string_lossy();
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self.parse(&program_name, argv, handler, |e| { std::eprintln!("error: {e}") })
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}
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}
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