basic stuff + partial transpile

src/lexer.rs

@@ -0,0 +1,19 @@
+mod checking {
+    pub fn isalpha(str: &str) -> bool {
+        str.to_uppercase() != str.to_lowercase()
+    }
+
+    pub fn isint(str: &str) -> bool {
+        let c = str.chars().next().unwrap_or('\0');
+        let bounds = ('0', '9');
+
+        c >= bounds.0 && c <= bounds.1
+    }
+
+    pub fn isskippable(str: &str) -> bool {
+        match str {
+            " " | "\n" | "\t" => true,
+            _ => false,
+        }
+    }
+}

src/main.rs

@@ -0,0 +1,6 @@
+mod ast;
+mod lexer;
+
+fn main() {
+    println!("Hello, world!");
+}