Fixed some things.

src/include/lexer.h

@@ -8,20 +8,20 @@
 
 // What the lexer is currently looking at.
 typedef enum {
-  LEXER_STATE_CONFUSED, // Can't decide what it's looking at (also initial
+    LEXER_STATE_CONFUSED, // Can't decide what it's looking at (also initial
-                        // state).
+                          // state).
-  LEXER_STATE_NUM,      // Looking at a number.
+    LEXER_STATE_NUM,      // Looking at a number.
-  LEXER_STATE_CALL,     // Looking at a call.
+    LEXER_STATE_CALL,     // Looking at a call.
 } LexerState;
 
 // Lexer: converts text to tokens.
 typedef struct {
-    char* src;          // The source text.
+    char* src;        // The source text.
-    size_t srcl;        // The number of source chars.
+    size_t srcl;      // The number of source chars.
-    char* cchar;        // The current character.
+    char* cchar;      // The current character.
-    Token** tokens;     // The tokens produced.
+    Token** tokens;   // The tokens produced.
-    size_t ntokens;     // The number of tokens.
+    size_t ntokens;   // The number of tokens.
-    LexerState state;   // What the lexxer is looking at.
+    LexerState state; // What the lexxer is looking at.
 } Lexer;
 
 // Create a lexer.

src/include/parser.h

@@ -10,21 +10,4 @@
 // - Expression 1
 // - Expression 2
 
-typedef enum OpType {
-    OPTYPE_PLUS,
-    OPTYPE_MINUS
-} optype_t;
-
-typedef union Exp {
-    typedef struct Op {
-        optype_t type;
-        Exp* exp1;
-        Exp* exp2;
-    } op_t;
-
-    int n;
-} exp_t;
-
-
-
 #endif

src/include/util.c

@@ -1,12 +0,0 @@
-#ifndef UTIL_H
-#define UTIL_H
-
-// Utilies.
-
-#include <stdlib.h>
-#include <stdio.h>
-
-// Exit with an error. Returns int for ease of use, but should be treated as void.
-int die(char* msg);
-
-#endif

src/util.c

@@ -1,6 +1,3 @@
 #include "include/util.h"
 
-int is_even(int n) {
+int is_even(int n) { return !(n % 2); }
-    return !(n%2);
-}
-