Merge pull request #33 from buttercrab/dev

fixed #32 unicode error

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "hyeong"
-version = "0.1.1"
+version = "0.1.2"
 authors = ["buttercrab <jaeyong0201@gmail.com>"]
 edition = "2018"
 license = "MIT"

README.md

@@ -35,7 +35,7 @@
 More explanation on [Documentation](https://github.com/buttercrab/hyeo-ung-lang/wiki/Documentation).
 
 ```
-hyeong 0.1.1
+hyeong 0.1.2
 hyeo-ung programming language tool
 
 USAGE:

src/core/compile.rs

@@ -289,15 +289,15 @@ impl Stack {
     fn push(&mut self, idx: usize, num: Num) {
         if idx == 1 {
             if num.is_pos() {
-                print!(\"{}\", num.floor().to_int() as u8 as char);
+                print!(\"{}\", std::char::from_u32(num.floor().to_int()).unwrap());
             } else {
                 print!(\"{}\", -&num);
             }
             return;
         }
         if idx == 2 {
             if num.is_pos() {
-                eprint!(\"{}\", num.floor().to_int() as u8 as char);
+                eprint!(\"{}\", std::char::from_u32(num.floor().to_int()).unwrap());
             } else {
                 eprint!(\"{}\", -&num);
             }

src/core/execute.rs

@@ -40,14 +40,30 @@ where
     match idx {
         1 => {
             if num.is_pos() {
-                write!(out, "{}", num.floor().to_int() as u8 as char)?;
+                let n = num.floor().to_int();
+                write!(
+                    out,
+                    "{}",
+                    std::char::from_u32(n).ok_or(Error::new(
+                        "utf-8 encoding error",
+                        format!("number {} was not valid unicode", n)
+                    ))?
+                )?;
             } else {
                 write!(out, "{}", -&num)?;
             }
         }
         2 => {
             if num.is_pos() {
-                write!(err, "{}", num.floor().to_int() as u8 as char)?;
+                let n = num.floor().to_int();
+                write!(
+                    err,
+                    "{}",
+                    std::char::from_u32(n).ok_or(Error::new(
+                        "utf-8 encoding error",
+                        format!("number {} was not valid unicode", n)
+                    ))?
+                )?;
             } else {
                 write!(err, "{}", -&num)?;
             }

src/main.rs

@@ -101,7 +101,7 @@ fn sub_main(
 /// Main function of this program
 ///
 /// ```text
-/// hyeong 0.1.1
+/// hyeong 0.1.2
 /// hyeo-ung programming language tool
 ///
 /// USAGE:
@@ -127,7 +127,7 @@ fn sub_main(
 #[cfg(not(feature = "number"))]
 fn main() {
     let matches = App::new("hyeong")
-        .version("0.1.1")
+        .version("0.1.2")
         .about("hyeo-ung programming language tool")
         .arg(option::color())
         .subcommand(build::app())