Macro data_encoding_macro::new_encoding
source · macro_rules! new_encoding { ($($arg: tt)*) => { ... }; }
Expand description
Defines a compile-time custom encoding
This macro takes a list of key: value,
pairs (the last comma is required). The possible
key-value pairs are:
symbols: <string>, // e.g. "01234567"
padding: [None]|<char>, // e.g. '='
bit_order: [MostSignificantFirst]|LeastSignificantFirst,
check_trailing_bits: [true]|false,
ignore: [""]|<string>, // e.g. " \t\n"
wrap_width: [0]|<int>, // e.g. 76
wrap_separator: [""]|<string>, // e.g. "\r\n"
translate_from: [""]|<string>, // e.g. "ABCDEF"
translate_to: [""]|<string>, // e.g. "abcdef"
Only symbols
is required. Everything else is optional and defaults to the value between square
brackets.
§Examples
const HEX: data_encoding::Encoding = data_encoding_macro::new_encoding! {
symbols: "0123456789abcdef",
ignore: " \r\t\n",
wrap_width: 32,
wrap_separator: "\n",
translate_from: "ABCDEF",
translate_to: "abcdef",
};