Added statements to the Parser, currently just the Print and Expression statements. 8.1 isn't quite done yet, maybe half way there.

src/parser.c

@@ -1,5 +1,6 @@
 #include "parser.h"
 #include "expr.h"
+#include "statement.h"
 #include "token.h"
 #include <stdio.h>
 
@@ -10,6 +11,9 @@ Expr* Term(void);
 Expr* Factor(void);
 Expr* Unary(void);
 Expr* Primary(void);
+Stmt* Statement(void);
+Stmt* PrintStatement(void);
+Stmt* ExpressionStatement(void);
 int Match(int, ...);
 int Check(TokenType);
 int ParserAtEnd(void);
@@ -32,6 +36,34 @@ Expr* Expression() {
     return Equality();
 }
 
+Stmt* Statement(void) {
+    if (Match(1, PRINT)) return PrintStatement();
+
+    return ExpressionStatement();
+}
+
+Stmt* PrintStatement(void) {
+    Expr* value = Expression();
+
+    if (!Match(1, Semicolon)) fprintf(stderr, "Expected ';' after value\n");
+
+    AdvanceParser();
+
+    return CreateStatement(value, STMT_Print);
+}
+
+Stmt* ExpressionStatement(void) {
+    Expr* expr = Expression();
+
+    if (!Match(1, Semicolon)) fprintf(stderr, "Expected ';' after expression\n");
+
+    AdvanceParser();
+
+    return CreateStatement(expr, STMT_Expression);
+}
+
+Stmt* ExpressionStatement(void);
+
 Expr* Equality() {
     Expr* expr = Comparison();
 
@@ -146,7 +178,7 @@ Expr* Primary() {
         return temp;
     }
 
-    printf("Bad expression\n");
+    fprintf(stderr, "Bad expression, this should be unreachable.\n");
 
     return NULL;
 }