Lexer is done for now. Now for the scaffold.

ALso the parser is next up. But I want to get some frontend
done so it won't whine at me so much.

The lexer has a lot more to go, I'm sure, but right now it
does all the basics that I need it to do.

1 files changed, 9 insertions, 4 deletions

diff --git a/src/lexer.rs b/src/lexer.rs
index 46651c4..e80e461 100644
--- a/src/lexer.rs
+++ b/src/lexer.rs
@@ -39,7 +39,7 @@ fn is_valid_token_char( c: char ) -> bool {
         return false;
     }
     match c {
-        'a'..'z' | 'A'..'Z' | '0'..'9' => true,
+        'a'..'z' | 'A'..'Z' | '0'..'9' | '_' | '-' => true,
         _ => false
     }
 }
@@ -157,9 +157,14 @@ impl<'a> Lexer<'a> {
 
     fn parse_token(&mut self) -> Option<Symbol<'a>> {
         self.skip_ws();
-        if let Some(chr) = self.cur() && chr == '"' {
-            // Literal string
-            return self.parse_literal_str();
+        match self.cur() {
+            Some('"') => {
+                return self.parse_literal_str();
+            }
+            Some('=') => {
+                return Some(Symbol::Equals);
+            }
+            _ => {}
         }
         let start = self.cur_index();