The Lexer now parses StaticStrings correctly.

src/lexer/lexer.rs

@@ -52,6 +52,12 @@ fn is_symbol(c: char) -> bool
    is_whitespace(c) == false && is_alphanumeric(c) == false
 }
 
+///
+fn is_not_double_quote(c: char) -> bool
+{
+   c != '"'
+}
+
 /// Determines if a String is a keyword.
 fn is_keyword(s: String) -> bool
 {
@@ -231,6 +237,73 @@ fn consume_identifier(reader: &mut Reader) -> String
    buffer
 }
 
+///
+fn consume_static_string(reader: &mut Reader) -> String
+{
+   let mut is_valid: bool;
+   let mut buffer: String;
+
+   // Create a buffer to store all the consumed characters.
+   buffer = String::new();
+
+   // Check if the first character from the Reader
+   // is a double quote character.
+   match reader.get_char()
+   {
+      Ok(read_character) =>
+      {
+         is_valid = read_character == '"';
+      }
+
+      Err(error) =>
+      {
+         warn!("{}", error);
+         is_valid = false;
+      }
+   }
+
+   // If the first character is valid, then consume it and
+   // consume any alphanumeric character the follow.
+   if is_valid == true
+   {
+      // Consume the first double quote.
+      match reader.consume_char()
+      {
+         Ok(character) =>
+         {
+            // Add this consumed character to the buffer.
+            buffer.push(character);
+         }
+
+         Err(error) =>
+         {
+            error!("{}", error);
+         }
+      }
+
+      // Now read until we get to the next double quote character.
+      buffer.push_str(&consume_while(reader, is_not_double_quote));
+
+      // Consume the second double quote.
+      match reader.consume_char()
+      {
+         Ok(character) =>
+         {
+            // Add this consumed character to the buffer.
+            buffer.push(character);
+         }
+
+         Err(error) =>
+         {
+            error!("{}", error);
+         }
+      }
+   }
+
+   // Return the buffer of consumed characters.
+   buffer
+}
+
 /// Consume characters until the test returns false.
 fn consume_while<F>(reader: &mut Reader, test: F) -> String
    where F: Fn(char) -> bool
@@ -352,10 +425,33 @@ impl Lexer
             // Push the token into the list.
             tokens.push(token);
          }
+         else if is_symbol(test_char)
+         {
+            // If this is a double quote then it means we are
+            // looking at a string. If so, then we should consume a string.
+            if test_char == '"'
+            {
+               // This must be a static string.
+               token = Token::from(consume_static_string(reader));
+               token.set_type(TokenTypes::StaticString);
+
+               // Push the token into the list.
+               tokens.push(token);
+            }
+            else
+            {
+               // This must be some kind of symbol.
+               token = Token::from(consume_symbol(reader));
+               token.set_type(TokenTypes::Symbol);
+
+               // Push the token into the list.
+               tokens.push(token);
+            }
+         }
          else
          {
-            // This must be some kind of symbol.
-            token = Token::from(consume_symbol(reader));
+            // This is something we don't know of.
+            token = Token::from(consume_while(reader, is_non_whitespace));
             token.set_type(TokenTypes::Unknown);
 
             // Push the token into the list.

src/lexer/token_types.rs

@@ -24,6 +24,9 @@ pub enum TokenTypes
    /// These follow Rust's standard of escape characters.
    StaticString,
 
+   /// A symbol is a non alphanumeric or whitespace character.
+   Symbol,
+
    /// This token is just whitespace,
    /// one or more space characters.
    Whitespace,
@@ -64,7 +67,12 @@ impl TokenTypes
 
          TokenTypes::StaticString =>
          {
-            "Unknown"
+            "String"
+         }
+
+         TokenTypes::Symbol =>
+         {
+            "Symbol"
          }
 
          TokenTypes::Whitespace =>