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|
/* Generated by re2rust */
// re2rust $INPUT -o $OUTPUT --header lexer/state.rs
mod lexer;
use lexer::state::State; // the module is generated by re2c
fn lex(yyrecord: &mut State) -> usize {
assert_eq!(yyrecord.yyinput.last(), Some(&0)); // expect null-terminated input
let t: usize;
{
#[allow(unused_assignments)]
let mut yych : u8 = 0;
let mut yystate : usize = 0;
'yyl: loop {
match yystate {
0 => {
yych = unsafe {*yyrecord.yyinput.get_unchecked(yyrecord.yycursor)};
match yych {
0x61 => {
yyrecord.yycursor += 1;
yystate = 0;
continue 'yyl;
}
0x62 => {
yyrecord.yyt1 = yyrecord.yycursor;
yyrecord.yycursor += 1;
yystate = 2;
continue 'yyl;
}
_ => {
yyrecord.yyt1 = yyrecord.yycursor;
yystate = 1;
continue 'yyl;
}
}
}
1 => {
t = yyrecord.yyt1;
{ return t; }
}
2 => {
yych = unsafe {*yyrecord.yyinput.get_unchecked(yyrecord.yycursor)};
match yych {
0x62 => {
yyrecord.yycursor += 1;
yystate = 2;
continue 'yyl;
}
_ => {
yystate = 1;
continue 'yyl;
}
}
}
_ => panic!("internal lexer error"),
}
}
}
}
fn main() {
let mut st = State {
yyinput: b"ab\0",
yycursor: 0,
yyt1: 0,
};
assert_eq!(lex(&mut st), 1);
}
/* Generated by re2rust */
pub struct State<'a> {
pub yyinput: &'a [u8],
pub yycursor: usize,
pub yyt1: usize,
}
rust/headers/header.re:25:21: warning: rule matches empty string [-Wmatch-empty-string]
|
