Added the ability to write comments. Comments start with a ; and exte…

…nd to the end of the line.
kentdlee · Feb 13, 2014 · 0a58fc1 · 0a58fc1
1 parent a2404a1
commit 0a58fc1
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Showing 2 changed files with 13 additions and 2 deletions.
diff --git a/PyScanner.cpp b/PyScanner.cpp
@@ -87,6 +87,7 @@ PyToken* PyScanner::getToken() {
                 else if (c == '/') state = 8;
                 else if (c == '(') state = 9;
                 else if (c == ')') state = 10;
+                else if (c == ';') state = 12;
                 else if (c == -1) {
                     foundOne = true;
                     type = PYEOFTOKEN;
@@ -204,7 +205,15 @@ PyToken* PyScanner::getToken() {
                     type = PYBADTOKEN;
                     foundOne = true;                    
                 }
-
+            case 12: 
+                // Comments extend to end of line and
+                // begin with a semicolon.
+                if (c == '\n' || c == -1) {
+                    colCount = -1;
+                    lineCount++;
+                    state = 0;
+                    lex = "";
+                }
         }
 
         if (!foundOne) {

diff --git a/tests/raise.casm b/tests/raise.casm
@@ -1,3 +1,5 @@
+; This program raises an exception.
+
 Function: main/0
 Constants: None, "Hello World!"
 Locals: ex
@@ -24,7 +26,7 @@ label00:  DUP_TOP
           POP_TOP                  
           POP_BLOCK                
           POP_EXCEPT               
-          LOAD_CONST                     0
+          LOAD_CONST                     0 ; here is a comment.
 label01:  LOAD_CONST                     0
           STORE_FAST                     0
           DELETE_FAST                    0