added grammar files

src/tests/expressions.rs

@@ -0,0 +1,16 @@
+
+
+#[test]
+fn identifiers() {
+    use crate::expressions::IdentifierParser as IdentParser;
+    assert!(IdentParser::new().parse("a").is_ok());
+    assert!(IdentParser::new().parse("_").is_ok());
+    assert!(IdentParser::new().parse("a_a_a_").is_ok());
+    assert!(IdentParser::new().parse("_0").is_ok());
+    assert!(IdentParser::new().parse("_a").is_ok());
+    assert!(IdentParser::new().parse("__").is_ok());
+
+    assert!(IdentParser::new().parse("0").is_err());
+    assert!(IdentParser::new().parse("0123456").is_err());
+    assert!(IdentParser::new().parse("0aaaa").is_err());
+}

src/tests/literals.rs

@@ -0,0 +1,49 @@
+use crate::literals::AtomParser as Parser;
+use std::any::type_name_of_val;
+use std::convert::identity;
+
+#[test]
+fn int_literals() {
+    let parser = Parser::new();
+    let valid_ints = vec!["1234567890", "(1234567890)", "((((1))))"];
+    let invalid_ints = vec!["01", "(1", "6543)", "((987652345)"];
+
+    assert!(valid_ints.into_iter().all(|s| parser.parse(s).is_ok()));
+    assert!(invalid_ints.into_iter().all(|s| parser.parse(s).is_err()));
+}
+
+#[test]
+fn test_float_dots() {
+    let valid_floats = vec![
+        "0.0",
+        "-0.0",
+        "3.141592653589793",
+        "-1.123456765432123456789",
+    ];
+    assert!(Parser::new().parse("1.1").is_ok());
+    assert!(Parser::new().parse("-1.1").is_ok());
+    assert!(Parser::new().parse(".1").is_ok());
+    assert!(Parser::new().parse("-.1").is_ok());
+}
+
+#[test]
+fn test_float_exps() {
+    let parser = crate::literals::FloatParser::new();
+
+    let valid_float_exps: Vec<&str> = vec![
+        "1e1", "-1e1", "1e-1", "-1e-1", "1.1e1", "1.1e-1", "-1.1e1", "-1.1e-1", ".1e1", "-.1e1",
+        "-.1e-1", "1E1", "-1E1", "1E-1", "-1E-1", "1.1E1", "1.1E-1", "-1.1E1", "-1.1E-1", ".1E1",
+        "-.1E1", "-.1E-1",
+    ];
+
+    let invalid_float_exps: Vec<&str> = vec!["AAAAAAAAAAAAAAA", "1.e1", "1e1.1", "1.1e1.1", "-1e1.1", "1e-1.1"];
+
+    assert!(
+        valid_float_exps
+            .into_iter()
+            .all(|s| parser.parse(s).is_ok())
+    );
+    assert!(invalid_float_exps
+        .into_iter()
+        .all(|s| parser.parse(s).is_err()));
+}

src/tests/mod.rs

@@ -1,57 +1,2 @@
-#[cfg(test)]
-mod test {
-    use crate::grammar;
-    use grammar::AtomParser as Parser;
-    #[test]
-    fn int_literals() {
-        assert!(Parser::new().parse("22").is_ok());
-        assert!(Parser::new().parse("(22)").is_ok());
-        assert!(Parser::new().parse("((22))").is_ok());
-    }
-
-    #[test]
-    fn test_float_dots() {
-        assert!(Parser::new().parse("1.1").is_ok());
-        assert!(Parser::new().parse("-1.1").is_ok());
-        assert!(Parser::new().parse(".1").is_ok());
-        assert!(Parser::new().parse("-.1").is_ok());
-    }
-
-    #[test]
-    fn test_float_exps() {
-        assert!(Parser::new().parse("(1e1)").is_ok());
-        assert!(Parser::new().parse("(-1e1)").is_ok());
-        assert!(Parser::new().parse("(1e-1)").is_ok());
-        assert!(Parser::new().parse("(-1e-1)").is_ok());
-        assert!(Parser::new().parse("(1E1)").is_ok());
-        assert!(Parser::new().parse("(-1E1)").is_ok());
-        assert!(Parser::new().parse("(1E-1)").is_ok());
-        assert!(Parser::new().parse("(-1E-1)").is_ok());
-        assert!(Parser::new().parse("(1.1e1)").is_ok());
-        assert!(Parser::new().parse("(-1.1e1)").is_ok());
-        assert!(Parser::new().parse("(1.1e-1)").is_ok());
-        assert!(Parser::new().parse("(-1.1e-1)").is_ok());
-        assert!(Parser::new().parse("(1.1E1)").is_ok());
-        assert!(Parser::new().parse("(-1.1E1)").is_ok());
-        assert!(Parser::new().parse("(1.1E-1)").is_ok());
-        assert!(Parser::new().parse("(-1.1E-1)").is_ok());
-
-        assert!(Parser::new().parse("(1.0e1)").is_ok());
-        assert!(Parser::new().parse("(-0.1e1)").is_ok());
-        assert!(Parser::new().parse("(1.0e-1)").is_ok());
-        assert!(Parser::new().parse("(-1.0e-1)").is_ok());
-        assert!(Parser::new().parse("(1.E1)").is_err());
-        assert!(Parser::new().parse("(-1E1)").is_ok());
-        assert!(Parser::new().parse("(1E-10)").is_ok());
-        assert!(Parser::new().parse("(-1E-1)").is_ok());
-        assert!(Parser::new().parse("(1.1e1)").is_ok());
-        assert!(Parser::new().parse("(-1.1e1)").is_ok());
-        assert!(Parser::new().parse("(1.1e-1)").is_ok());
-        assert!(Parser::new().parse("(-1.1e-1)").is_ok());
-        assert!(Parser::new().parse("(1.1E1)").is_ok());
-        assert!(Parser::new().parse("(-1.1E1)").is_ok());
-        assert!(Parser::new().parse("(1.1E-1)").is_ok());
-        assert!(Parser::new().parse("(-1.1E-1)").is_ok());
-        assert!(Parser::new().parse("FOOBAR").is_err());
-    }
-}
+mod literals;
+mod expressions;