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Add `number` parser.

This commit is contained in:
Damian Poddebniak 2021-05-15 19:26:20 +02:00
parent f6278a6da0
commit a327db7285
1 changed files with 5 additions and 0 deletions
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5
src/parse/mod.rs
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@ -4,6 +4,7 @@ use abnf_core::streaming::{is_ALPHA, is_DIGIT};
use nom::{ use nom::{
branch::alt, branch::alt,
bytes::streaming::{tag, take_while}, bytes::streaming::{tag, take_while},
character::streaming::digit1,
combinator::{map_res, opt, recognize}, combinator::{map_res, opt, recognize},
sequence::tuple, sequence::tuple,
IResult, IResult,
@ -35,3 +36,7 @@ pub fn base64(input: &[u8]) -> IResult<&[u8], &str> {
Ok((remaining, base64)) Ok((remaining, base64))
} }
pub fn number(input: &[u8]) -> IResult<&[u8], u32> {
map_res(map_res(digit1, from_utf8), str::parse::<u32>)(input) // FIXME(perf): use from_utf8_unchecked
}