diff --git a/xyntax.c b/xyntax.c
index 4aca4a3..c87614b 100644
--- a/xyntax.c
+++ b/xyntax.c
@@ -12,7 +12,6 @@
 #include <xolatile/xyntax.h>
 
 int      syntax_count   = 0;
-int    * syntax_mode    = NULL;
 int    * syntax_enrange = NULL;
 int    * syntax_derange = NULL;
 char * * syntax_begin   = NULL;
@@ -33,40 +32,40 @@ static int compare_character_array (char character, char * character_array, int
 	return (0);
 }
 
-void syntax_define (int * index, int enrange, int derange, char * begin, char * end, char escape, int colour, int effect) {
-	syntax_mode    = reallocate (syntax_mode,    (unsigned long int) (syntax_count + 1) * sizeof (* syntax_mode));
-	syntax_enrange = reallocate (syntax_enrange, (unsigned long int) (syntax_count + 1) * sizeof (* syntax_enrange));
-	syntax_derange = reallocate (syntax_derange, (unsigned long int) (syntax_count + 1) * sizeof (* syntax_derange));
-	syntax_begin   = reallocate (syntax_begin,   (unsigned long int) (syntax_count + 1) * sizeof (* syntax_begin));
-	syntax_end     = reallocate (syntax_end,     (unsigned long int) (syntax_count + 1) * sizeof (* syntax_end));
-	syntax_escape  = reallocate (syntax_escape,  (unsigned long int) (syntax_count + 1) * sizeof (* syntax_escape));
-	syntax_colour  = reallocate (syntax_colour,  (unsigned long int) (syntax_count + 1) * sizeof (* syntax_colour));
-	syntax_effect  = reallocate (syntax_effect,  (unsigned long int) (syntax_count + 1) * sizeof (* syntax_effect));
-
-	syntax_begin [syntax_count] = allocate ((string_length (begin) + 1) * (int) sizeof (* * syntax_begin));
-	syntax_end   [syntax_count] = allocate ((string_length (end)   + 1) * (int) sizeof (* * syntax_end));
-
-	syntax_mode    [syntax_count] = * index;
-	syntax_enrange [syntax_count] = enrange;
-	syntax_derange [syntax_count] = derange;
-	syntax_escape  [syntax_count] = escape;
-	syntax_colour  [syntax_count] = colour;
-	syntax_effect  [syntax_count] = effect;
-
-	string_copy (syntax_begin [syntax_count], begin);
-	string_copy (syntax_end   [syntax_count], end);
-
-	* index = syntax_count;
+int syntax_define (int enrange, int derange, char * begin, char * end, char escape, int colour, int effect) {
+	fatal_failure (begin == NULL, "syntax_define: Begin string is null pointer.");
+	fatal_failure (end   == NULL, "syntax_define: End string is null pointer.");
 
 	++syntax_count;
+
+	syntax_enrange = reallocate (syntax_enrange, syntax_count * (int) sizeof (* syntax_enrange));
+	syntax_derange = reallocate (syntax_derange, syntax_count * (int) sizeof (* syntax_derange));
+	syntax_begin   = reallocate (syntax_begin,   syntax_count * (int) sizeof (* syntax_begin));
+	syntax_end     = reallocate (syntax_end,     syntax_count * (int) sizeof (* syntax_end));
+	syntax_escape  = reallocate (syntax_escape,  syntax_count * (int) sizeof (* syntax_escape));
+	syntax_colour  = reallocate (syntax_colour,  syntax_count * (int) sizeof (* syntax_colour));
+	syntax_effect  = reallocate (syntax_effect,  syntax_count * (int) sizeof (* syntax_effect));
+
+	syntax_begin [syntax_count - 1] = allocate ((string_length (begin) + 1) * (int) sizeof (* * syntax_begin));
+	syntax_end   [syntax_count - 1] = allocate ((string_length (end)   + 1) * (int) sizeof (* * syntax_end));
+
+	syntax_enrange [syntax_count - 1] = enrange;
+	syntax_derange [syntax_count - 1] = derange;
+	syntax_escape  [syntax_count - 1] = escape;
+	syntax_colour  [syntax_count - 1] = colour;
+	syntax_effect  [syntax_count - 1] = effect;
+
+	string_copy (syntax_begin [syntax_count - 1], begin);
+	string_copy (syntax_end   [syntax_count - 1], end);
+
+	return (syntax_count - 1);
 }
 
-void syntax_select (char * string, int * index, int * length) {
+int syntax_select (char * string, int * length) {
 	int offset = 0;
 	int select = 0;
 
 	fatal_failure (string == NULL, "syntax_select: String is null.");
-	fatal_failure (index  == NULL, "syntax_select: Index is null.");
 	fatal_failure (length == NULL, "syntax_select: Length is null.");
 
 	do {
@@ -92,12 +91,9 @@ void syntax_select (char * string, int * index, int * length) {
 
 	selected:
 
-	if (select == syntax_count) {
-		* index  = 0; /* Should we handle this undefined behavior? */
+	if (select == syntax_count) { /* Undefined symbol. */
 		* length = 1;
-		return;
-	} else {
-		* index = select;
+		return (0);
 	}
 
 	do {
@@ -111,7 +107,7 @@ void syntax_select (char * string, int * index, int * length) {
 		if (syntax_derange [select] == 0) {
 			if (string_compare_limit (& string [offset], syntax_end [select], string_length (syntax_end [select]))) {
 				* length = offset + string_length (syntax_end [select]);
-				return;
+				return (select);
 			}
 		} else {
 			int subset = 0;
@@ -120,11 +116,13 @@ void syntax_select (char * string, int * index, int * length) {
 			} do {
 				if (string [offset] == syntax_end [select] [subset]) {
 					* length = offset;
-					return;
+					return (select);
 				}
 			} while (++subset != (int) string_length (syntax_end [select]));
 		}
 	} while (string [offset - 1] != '\0');
+
+	return (select);
 }
 
 void syntax_delete (void) {
@@ -135,7 +133,6 @@ void syntax_delete (void) {
 		syntax_end   [syntax_count] = deallocate (syntax_end   [syntax_count]);
 	} while (--syntax_count != -1);
 
-	syntax_mode    = deallocate (syntax_mode);
 	syntax_enrange = deallocate (syntax_enrange);
 	syntax_derange = deallocate (syntax_derange);
 	syntax_begin   = deallocate (syntax_begin);
diff --git a/xyntax.h b/xyntax.h
index 784b1c7..c34af3d 100644
--- a/xyntax.h
+++ b/xyntax.h
@@ -13,7 +13,6 @@
 #include <xolatile/xtandard.c>
 
 extern int      syntax_count;
-extern int    * syntax_mode;
 extern int    * syntax_enrange;
 extern int    * syntax_derange;
 extern char * * syntax_begin;
@@ -22,9 +21,8 @@ extern char   * syntax_escape;
 extern int    * syntax_colour;
 extern int    * syntax_effect;
 
-extern void syntax_define (int *, int, int, char *, char *, char, int, int);
-
-extern void syntax_select (char *, int *, int *);
+extern int syntax_define (int, int, char *, char *, char, int, int);
+extern int syntax_select (char *, int *);
 
 extern void syntax_delete (void);