Fix clear screen on windows (#772)

* fix windows clear screen bug
* update lalrpop

core/src/ui/mod.rs

@@ -3,7 +3,15 @@ use colored::*;
 const VERSION: &str = env!("CARGO_PKG_VERSION");
 
 pub fn clear_screen() {
-    std::process::Command::new("clear").status().unwrap();
+    if let Err(e) = if cfg!(target_os = "windows") {
+        std::process::Command::new("cmd")
+            .args(["/C", "cls"])
+            .status()
+    } else {
+        std::process::Command::new("clear").status()
+    } {
+        eprintln!("Failed to clear the screen: {:?}", e);
+    }
 }
 
 pub fn were_so_cool_logo(action: Option<&str>, filename: Option<String>) {

parser/Cargo.toml

@@ -9,14 +9,14 @@ license = "GPL-3.0"
 resolver="2"
 
 [build-dependencies.lalrpop]
-version = "0.19.6"
+version = "0.19.10"
 features = ["lexer"]
 
 [dependencies]
 weresocool_ast = { path = "../ast", version = "^1.0.44", default_features=false, optional=true }
 weresocool_error = { path = "../error", version = "^1.0.44", default_features=false, optional=true }
 scop = { path = "../scop", version = "^1.0.44" }
-lalrpop-util = { version="0.19.8", features=["lexer"]}
+lalrpop-util = { version="0.19.10", features=["lexer"]}
 regex = "1.5.4"
 colored = "2.0.0"
 num-rational = "0.3.2"

ring_buffer/src/lib.rs

@@ -72,7 +72,7 @@ impl<T: Sized + Copy + Clone + std::default::Default> RingBuffer<T> {
         T: Clone + Copy,
     {
         if self.tail == 0 {
-            return self.buffer[(self.capacity - 1)];
+            return self.buffer[self.capacity - 1];
         }
         self.buffer[(self.tail - 1) % self.capacity]
     }

test.socool

@@ -22,10 +22,9 @@ thing2 = {
 }
 
 main = {
-    csv(f: 1.0, l: 1.0) ./test.csv
-  -- Overlay [
-    -- thing1,
-    -- thing2
-  -- ]
+  Overlay [
+    thing1,
+    thing2
+  ]
 }