nom 5.0.0-alpha2

A byte-oriented, zero-copy, parser combinators library
Documentation 
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//! character specific parsers and combinators
//!
//! functions recognizing specific characters

#[macro_use]
mod macros;

pub mod streaming;
pub mod complete;

/// Tests if byte is ASCII alphabetic: A-Z, a-z
#[inline]
pub fn is_alphabetic(chr: u8) -> bool {
  (chr >= 0x41 && chr <= 0x5A) || (chr >= 0x61 && chr <= 0x7A)
}

/// Tests if byte is ASCII digit: 0-9
#[inline]
pub fn is_digit(chr: u8) -> bool {
  chr >= 0x30 && chr <= 0x39
}

/// Tests if byte is ASCII hex digit: 0-9, A-F, a-f
#[inline]
pub fn is_hex_digit(chr: u8) -> bool {
  (chr >= 0x30 && chr <= 0x39) || (chr >= 0x41 && chr <= 0x46) || (chr >= 0x61 && chr <= 0x66)
}

/// Tests if byte is ASCII octal digit: 0-7
#[inline]
pub fn is_oct_digit(chr: u8) -> bool {
  chr >= 0x30 && chr <= 0x37
}

/// Tests if byte is ASCII alphanumeric: A-Z, a-z, 0-9
#[inline]
pub fn is_alphanumeric(chr: u8) -> bool {
  is_alphabetic(chr) || is_digit(chr)
}

/// Tests if byte is ASCII space or tab
#[inline]
pub fn is_space(chr: u8) -> bool {
  chr == b' ' || chr == b'\t'
}