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use pom::*;
use pom::parser::Parser as PomParser;
use pom::parser::*;
use pom::char_class::hex_digit;
pub fn numbers<'a>() -> PomParser<'a, u8, Vec<u8>> {
one_of(b"0123456789").repeat(1..)
}
pub fn letters<'a>() -> PomParser<'a, u8, Vec<u8>> {
pom::parser::is_a(pom::char_class::alpha).repeat(1..)
}
pub fn dash<'a>() -> PomParser<'a, u8, Vec<u8>> {
sym(b'-').map(|b| vec![b])
}
pub fn under<'a>() -> PomParser<'a, u8, Vec<u8>> {
sym(b'_').map(|b| vec![b])
}
pub fn dot<'a>() -> PomParser<'a, u8, Vec<u8>> {
sym(b'.').map(|b| vec![b])
}
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