Added slicing, quit/exit functions, fixed bugs

CHANGELOG.md

@@ -7,6 +7,22 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.12.0] - 2023-10-30
+
+### Added
+
+- Slicing of arrays and strings (store in variable first).
+- `quit` and `exit` functions to immediately terminate the program with an optional code.
+
+### Changed
+
+- `run_tokens` now returns a `Result` to provide a base for the upcoming feature of error handling.
+
+### Fixed
+
+- Fixed bug where commas in in strings were evaluated as seperators.
+- Errors in lexer now print on the correct line.
+
 ## [0.11.0] - 2023-10-27
 
 ### Added
@@ -139,7 +155,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - Simple function and string parsing
 
-[unreleased]: https://github.com/ArnabRollin/dwn/compare/v0.11.0...HEAD
+[unreleased]: https://github.com/ArnabRollin/dwn/compare/v0.12.0...HEAD
+
+[0.12.0]: https://github.com/ArnabRollin/dwn/compare/v0.11.0...v0.12.0
 
 [0.11.0]: https://github.com/ArnabRollin/dwn/compare/v0.10.0...v0.11.0
 

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "dwn"
-version = "0.11.0"
+version = "0.12.0"
 edition = "2021"
 
 [dependencies]

src/bytecode.rs

@@ -304,7 +304,9 @@ fn byterun_lvl1(mut reader: BufReader<File>) {
                 scope_token: &mut scope_token,
                 current_tokens: &mut current_tokens,
             },
-        );
+            false,
+        )
+        .ok();
     }
 }
 

src/dwn.rs

@@ -141,7 +141,14 @@ lazy_static! {
             "format_array",
             format_array as for<'a> fn(Vec<Token>, &'a mut Metadata) -> Result<Token, String>,
         );
-
+        m.insert(
+            "quit",
+            quit as for<'a> fn(Vec<Token>, &'a mut Metadata) -> Result<Token, String>,
+        );
+        m.insert(
+            "exit",
+            quit as for<'a> fn(Vec<Token>, &'a mut Metadata) -> Result<Token, String>,
+        );
         RwLock::new(m)
     };
 }
@@ -300,7 +307,7 @@ fn run_scope(token: &Token, meta: &mut Metadata) -> Token {
             return ret;
         }
         _ => {
-            eprintln!("Error on line {}: Expected scope!", meta.line_count);
+            eprintln!("Error on line {}: Expected scope!", meta.line_count + 1);
             exit(1);
         }
     }
@@ -1333,3 +1340,20 @@ fn format_array(tokens: Vec<Token>, meta: &mut Metadata) -> Result<Token, String
         val: "None".to_string(),
     })
 }
+
+fn quit(tokens: Vec<Token>, meta: &mut Metadata) -> Result<Token, String> {
+    let args = get_args(tokens, meta);
+
+    let code: i32 = if args.len() > 0 {
+        match args[0].val.parse() {
+            Ok(n) => n,
+            Err(_) => {
+                return Err("(quit / exit) Error code is not a number".to_string());
+            }
+        }
+    } else {
+        0
+    };
+
+    exit(code);
+}