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|
/* Generated by re2rust */
// re2rust $INPUT -o $OUTPUT -d
fn lex(s: &[u8]) -> bool {
let mut cursor = 0;
{
#[allow(unused_assignments)]
let mut yych : u8 = 0;
let mut yystate : usize = 0;
'yyl: loop {
match yystate {
0 => {
format!("lex: char '{}' in state {}\n", yych, 0);
yych = unsafe {*s.get_unchecked(cursor)};
cursor += 1;
match yych {
0x31 ..= 0x39 => {
yystate = 2;
continue 'yyl;
}
_ => {
yystate = 1;
continue 'yyl;
}
}
}
1 => {
format!("lex: char '{}' in state {}\n", yych, 1);
{ return false; }
}
2 => {
format!("lex: char '{}' in state {}\n", yych, 2);
yych = unsafe {*s.get_unchecked(cursor)};
match yych {
0x30 ..= 0x39 => {
cursor += 1;
yystate = 2;
continue 'yyl;
}
_ => {
yystate = 3;
continue 'yyl;
}
}
}
3 => {
format!("lex: char '{}' in state {}\n", yych, 3);
{ return true; }
}
_ => panic!("internal lexer error"),
}
}
}
}
fn main() {
assert!(lex(b"1234\0"));
}
|
