diff --git a/chapter/chapter_4.c b/chapter/chapter_4.c
index 6e5f0a7..88c5cca 100644
--- a/chapter/chapter_4.c
+++ b/chapter/chapter_4.c
@@ -76,13 +76,13 @@ static void syntax_delete (void) {
 		syntax_end   [offset] = deallocate (syntax_end   [offset]);
 	}
 
-	syntax_enrange   = deallocate (syntax_enrange);
-	syntax_derange   = deallocate (syntax_derange);
-	syntax_begin     = deallocate (syntax_begin);
-	syntax_end       = deallocate (syntax_end);
-	syntax_escape    = deallocate (syntax_escape);
-	syntax_colour    = deallocate (syntax_colour);
-	syntax_effect    = deallocate (syntax_effect);
+	syntax_enrange = deallocate (syntax_enrange);
+	syntax_derange = deallocate (syntax_derange);
+	syntax_begin   = deallocate (syntax_begin);
+	syntax_end     = deallocate (syntax_end);
+	syntax_escape  = deallocate (syntax_escape);
+	syntax_colour  = deallocate (syntax_colour);
+	syntax_effect  = deallocate (syntax_effect);
 
 	syntax_active = FALSE;
 	syntax_count  = 0;
@@ -184,73 +184,7 @@ static int syntax_select (char * string, int * length) {
 
 	return (select);
 }
-/*
-static int syntax_select (char * string, int * length) {
-	int offset = 0;
-	int select = 0;
 
-	fatal_failure (syntax_active == FALSE, "syntax_select: Syntax is not active.");
-	fatal_failure (string        == NULL,  "syntax_select: String is null.");
-	fatal_failure (length        == NULL,  "syntax_select: Length is null.");
-
-	do {
-		if (syntax_enrange [select] == 0) {
-			if (string_compare (string, syntax_begin [select]) == TRUE) {
-				if (syntax_derange [select] == 0) {
-					break;
-				} else {
-					if (character_compare_array (string [string_length (syntax_begin [select])], syntax_end [select]) != 0) {
-						break;
-					}
-				}
-			}
-		} else {
-			int subset = 0;
-			do {
-				if (string [offset] == syntax_begin [select] [subset]) {
-					goto selected;
-				}
-			} while (++subset != (int) string_length (syntax_begin [select]));
-		}
-	} while (++select != syntax_count);
-
-	selected:
-
-	if (select == syntax_count) {
-		* length = 1;
-
-		return (syntax_count);
-	}
-
-	do {
-		++offset;
-
-		if (string [offset] == syntax_escape [select]) {
-			++offset;
-			continue;
-		}
-
-		if (syntax_derange [select] == 0) {
-			if (string_compare (& string [offset], syntax_end [select]) == TRUE) {
-				* length = offset + string_length (syntax_end [select]);
-				return (select);
-			}
-		} else {
-			int subset = 0;
-			if (string_compare (syntax_end [select], "") != 0) {
-				break;
-			} do {
-				if (string [offset] == syntax_end [select] [subset]) {
-					* length = offset;
-					return (select);
-				}
-			} while (++subset != (int) string_length (syntax_end [select]));
-		}
-	} while (string [offset - 1] != '\0');
-
-	return (select);
-}
-*/
 static void syntax_highlight_c (void) {
 	char * separators = ".,:;<=>+*-/%!&~^?|()[]{}'\" \t\r\n";
 
@@ -263,22 +197,23 @@ static void syntax_highlight_c (void) {
 
 	int word;
 
-	syntax_define (FALSE, FALSE, "/*",      "*/", '\0', COLOUR_GREY, EFFECT_BOLD);
-	syntax_define (FALSE, FALSE, "//",      "\n", '\0', COLOUR_GREY, EFFECT_BOLD);
-	syntax_define (FALSE, FALSE, "#",       "\n", '\\', COLOUR_PINK, EFFECT_NORMAL);
-	syntax_define (FALSE, FALSE, "'",       "'",  '\\', COLOUR_PINK, EFFECT_BOLD);
-	syntax_define (FALSE, FALSE, "\"",      "\"", '\\', COLOUR_RED,  EFFECT_NORMAL);
+	syntax_define (FALSE, FALSE, "/*",      "*/", '\0', COLOUR_GREY,   EFFECT_BOLD);
+	syntax_define (FALSE, FALSE, "//",      "\n", '\0', COLOUR_GREY,   EFFECT_BOLD);
+	syntax_define (FALSE, FALSE, "#",       "\n", '\\', COLOUR_YELLOW, EFFECT_ITALIC);
+	syntax_define (FALSE, FALSE, "'",       "'",  '\\', COLOUR_PINK,   EFFECT_BOLD);
+	syntax_define (FALSE, FALSE, "\"",      "\"", '\\', COLOUR_PINK,   EFFECT_NORMAL);
 
 	for (word = 0; word != (int) (sizeof (keywords) / sizeof (keywords [0])); ++word) {
-		syntax_define (FALSE, TRUE, keywords [word], separators, '\0', COLOUR_BLUE, EFFECT_NORMAL);
+		syntax_define (FALSE, TRUE, keywords [word], separators, '\0', COLOUR_YELLOW, EFFECT_BOLD);
 	}
 
-	syntax_define (TRUE, FALSE, ".,:;<=>+*-/%!&~^?|()[]{}", "", '\0', COLOUR_BLUE, EFFECT_BOLD);
+	syntax_define (TRUE, FALSE, "()[]{}",             "", '\0', COLOUR_BLUE, EFFECT_NORMAL);
+	syntax_define (TRUE, FALSE, ".,:;<=>+*-/%!&~^?|", "", '\0', COLOUR_CYAN, EFFECT_NORMAL);
 
-	syntax_define (TRUE, TRUE, "0123456789",                 separators, '\0', COLOUR_CYAN,  EFFECT_BOLD);
+	syntax_define (TRUE, TRUE, "0123456789",                 separators, '\0', COLOUR_PINK,  EFFECT_BOLD);
 	syntax_define (TRUE, TRUE, "abcdefghijklmnopqrstuvwxyz", separators, '\0', COLOUR_WHITE, EFFECT_NORMAL);
 	syntax_define (TRUE, TRUE, "ABCDEFGHIJKLMNOPQRSTUVWXYZ", separators, '\0', COLOUR_WHITE, EFFECT_BOLD);
-	syntax_define (TRUE, TRUE, "_",                          separators, '\0', COLOUR_GREY,  EFFECT_BOLD);
+	syntax_define (TRUE, TRUE, "_",                          separators, '\0', COLOUR_WHITE, EFFECT_ITALIC);
 }
 
 void preview_c_file (char * text_file, int width, int height, int x, int y) {
diff --git a/program/example.c b/program/example.c
index 91442ad..3c10dcb 100644
--- a/program/example.c
+++ b/program/example.c
@@ -1,3 +1,10 @@
+#include <meme.h>
+#include "meme.h"
+
+// ASDF
+
+/* ASDF */
+
 enum {
 	REGISTER_0_64,      REGISTER_1_64,      REGISTER_2_64,      REGISTER_3_64,      REGISTER_4_64,      REGISTER_5_64,      REGISTER_6_64,      REGISTER_7_64,
 	REGISTER_8_64,      REGISTER_9_64,      REGISTER_A_64,      REGISTER_B_64,      REGISTER_C_64,      REGISTER_D_64,      REGISTER_E_64,      REGISTER_F_64,
@@ -25,9 +32,11 @@ static void data_echo (void) {
 	char byte [4] = "   ";
 	int i;
 
+	_meme = MEME = meme;
+
 	for (i = 0; i != data [0]; ++i) {
-		byte [0] = "0123456789ABCDEF" [data [i + 1] / 16];
-		byte [1] = "0123456789ABCDEF" [data [i + 1] % 16];
+		byte [0] = "0123456789ABCDEF" [data [i + 1] / '\020'];
+		byte [1] = "0123456789ABCDEF" [data [i + 1] % 'A'];
 		echo (byte);
 	}
 }