Crate chinese_telegraph 

Chinese Telegraph Code

This crate provides utilities for converting Unicode Chinese characters to Chinese telegraph codes.

Chinese telegraph codes are numerical codes used historically for transmitting Chinese text over telegraph systems. This crate supports both Traditional Chinese (Taiwan) and Simplified Chinese character sets.

Features

• Convert Chinese characters to telegraph codes
• Support for both Traditional and Simplified Chinese
• no_std compatible (with optional std feature for string formatting)
• Fast lookups using perfect hash functions

Usage

use chinese_telegraph::{to_telegraph, to_telegraph_string, Table};

// Look up a Traditional Chinese character
let code = to_telegraph("這", Table::TW);
assert_eq!(code, Some(6638));

// Look up a Simplified Chinese character
let code = to_telegraph("这", Table::CN);
assert_eq!(code, Some(6638));

// Search both tables
let code = to_telegraph("一", Table::Both);
assert_eq!(code, Some(1));

// Format as a 4-digit string (requires std feature)
let formatted = to_telegraph_string("一", Table::Both);
assert_eq!(formatted, Some("0001".to_string()));

Enums

Table

Specifies which character table(s) to use for telegraph code lookup.

Functions

to_telegraph

Converts a Chinese character to its telegraph code.

to_telegraph_stringstd

Converts a Chinese character to its telegraph code formatted as a 4-digit string.