40 lines
1.0 KiB
Rust
40 lines
1.0 KiB
Rust
// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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use std::io::BufReader;
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use std::io::BufferedReader;
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use std::io::File;
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use std::io::IoResult;
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struct Lexer<R: Reader>
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{
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reader: BufferedReader<R>,
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}
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impl<R: Reader> Lexer<R>
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{
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pub fn new_from_reader(r: R) -> Lexer<R>
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{
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Lexer{reader: BufferedReader::new(r)}
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}
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pub fn new_from_file(p: Path) -> IoResult<Lexer<File>>
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{
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Ok(Lexer::new_from_reader(try!(File::open(&p))))
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}
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pub fn new_from_str<'a>(s: &'a str) -> Lexer<BufReader<'a>>
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{
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Lexer::new_from_reader(BufReader::new(s.as_bytes()))
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}
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}
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fn main() {}
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