Function parse_typestr 

pub fn parse_typestr(typestr: &str) -> Result<(char, usize), ArrayProtocolError>

Parse a NumPy type-string into (kind_char, byte_count).

NumPy typestrings have the format <endian><kind><bytes>, where:

• endianness: '<' (little), '>' (big), '=' (native), '|' (n/a)
• kind: 'f' float, 'i' signed int, 'u' unsigned int, 'b' bool, 'c' complex, etc.
• bytes: decimal byte count, e.g. 8 for 64-bit.

Returns (kind, byte_count).

Examples

use scirs2_numpy::array_protocol::parse_typestr;
let (kind, bytes) = parse_typestr("<f8").unwrap();
assert_eq!(kind, 'f');
assert_eq!(bytes, 8);