cli dollcode encoder and decoder

add 0 example to encode

0xda157 5fd54812 23c9bec9

+2
+2
lib-porcelain/src/lib.rs
··· 37 37 /// ``` 38 38 /// use lib_porcelain::dollcode_encode; 39 39 /// 40 + /// assert_eq!(dollcode_encode(0), ""); 41 + /// 40 42 /// assert_eq!(dollcode_encode(893271), "▖▖▘▘▌▘▌▌▘▘▘▌▌"); 41 43 /// ``` 42 44 pub fn dollcode_encode(mut input: u64) -> String {