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pub(crate) mod aux;
pub(crate) mod emit;
pub(crate) mod model;
pub(crate) mod parse;
pub use model::{BrCode, Info, Label, MerchantInfo, Template};
pub use parse::Data;
pub use aux::crc16_ccitt;
pub fn from_str(code: &str) -> Vec<(usize, parse::Data)> {
parse::parse(code, 99)
}
pub fn to_string(code: &[(usize, parse::Data)]) -> String {
emit::emit(&code)
}
pub fn brcode_to_string(code: BrCode) -> String {
code.encode()
}
pub fn str_to_brcode(code: &str) -> BrCode {
let codes = parse::parse(code, 99);
BrCode::from(codes)
}
use std::ffi::{CStr, CString};
use std::mem;
use std::os::raw::c_char;
use std::str;
fn chars_to_string(pointer: *const c_char) -> String {
let slice = unsafe { CStr::from_ptr(pointer).to_bytes() };
str::from_utf8(slice).unwrap().to_string()
}
fn to_c_char(s: &str) -> *const c_char {
let cs = CString::new(s.as_bytes()).unwrap();
let ptr = cs.as_ptr();
mem::forget(cs);
ptr
}
#[no_mangle]
pub extern "C" fn crc16_ccitt_from_message(message: *const c_char) -> *const c_char {
let message_str = chars_to_string(message);
let checksum = crc16_ccitt(&message_str);
to_c_char(&checksum)
}
#[no_mangle]
pub extern "C" fn edn_from_brcode(edn: *const c_char) -> *const c_char {
let edn_str = chars_to_string(edn);
let brcode = str_to_brcode(&edn_str);
to_c_char(&edn_rs::to_string(brcode))
}
#[no_mangle]
pub extern "C" fn edn_to_brcode(edn: *const c_char) -> *const c_char {
let edn_str = chars_to_string(edn);
let brcode: BrCode = edn_rs::from_str(&edn_str).unwrap();
to_c_char(&brcode_to_string(brcode))
}
#[no_mangle]
pub extern "C" fn json_from_brcode(json: *const c_char) -> *const c_char {
let json_str = chars_to_string(json);
let brcode = str_to_brcode(&json_str);
to_c_char(&serde_json::to_string(&brcode).unwrap_or_else(|_| "error".to_string()))
}
#[no_mangle]
pub extern "C" fn json_to_brcode(edn: *const c_char) -> *const c_char {
let edn_str = chars_to_string(edn);
let brcode: BrCode = serde_json::from_str(&edn_str).unwrap();
to_c_char(&brcode_to_string(brcode))
}