Updated something, dunno what...

xtandard.c

@@ -47,6 +47,16 @@ void echo (char * data) {
 	out (data, string_length (data));
 }
 
+void echo_new_line (void) {
+	out ("\n", 1);
+}
+
+void echo_byte (int byte) {
+	out ("0123456789ABCDEF" + (byte % 256) / 16, 1);
+	out ("0123456789ABCDEF" + (byte % 256) % 16, 1);
+	out (" ",                                    1);
+}
+
 void fatal_failure (int condition, char * message) {
 	if (condition != 0) {
 		echo ("\033[1;31m[!]\033[0m ");
@@ -426,6 +436,12 @@ int character_is_underscore (char character) {
 	return ((int) (character == '_'));
 }
 
+int character_is_hexadecimal (char character) {
+	char * hexadecimals = "0123456789ABCDEF";
+
+	return (character_compare_array (character, hexadecimals, string_length (hexadecimals)));
+}
+
 int character_compare_array (char character, char * character_array, int count) {
 	int i = 0;
 
@@ -664,4 +680,21 @@ void terminal_show_cursor (int show) {
 	}
 }
 
+int encode_byte (char * byte) {
+	int encode = 0;
+
+	fatal_failure (character_is_hexadecimal (byte [0]) == 0, "encode_byte: Upper byte character is not hexadecimal digit.");
+	fatal_failure (character_is_hexadecimal (byte [1]) == 0, "encode_byte: Lower byte character is not hexadecimal digit.");
+
+	encode = ((byte [0] - (character_is_digit (byte [0]) ? ('0') : ('A' - 10))) << 4) | (byte [1] - (character_is_digit (byte [1]) ? ('0') : ('A' - 10)));
+
+	return (encode);
+}
+
+char * decode_byte (int byte) {
+	static char * decode = "  ";
+
+	return (decode);
+}
+
 #endif

xtandard.h

@@ -74,7 +74,9 @@ extern char * * file_list_data;
 extern void in  (void *, int);
 extern void out (void *, int);
 
-extern void echo (char *);
+extern void echo          (char *);
+extern void echo_new_line (void);
+extern void echo_byte     (int);
 
 extern void fatal_failure (int, char *);
 
@@ -103,16 +105,17 @@ extern void file_list_import (char *);
 extern void file_list_export (char *);
 extern void file_list_delete (void);
 
-extern int character_is_uppercase  (char);
-extern int character_is_lowercase  (char);
-extern int character_is_digit      (char);
-extern int character_is_blank      (char);
-extern int character_is_alpha      (char);
-extern int character_is_symbol     (char);
-extern int character_is_visible    (char);
-extern int character_is_invisible  (char);
-extern int character_is_escape     (char);
-extern int character_is_underscore (char);
+extern int character_is_uppercase   (char);
+extern int character_is_lowercase   (char);
+extern int character_is_digit       (char);
+extern int character_is_blank       (char);
+extern int character_is_alpha       (char);
+extern int character_is_symbol      (char);
+extern int character_is_visible     (char);
+extern int character_is_invisible   (char);
+extern int character_is_escape      (char);
+extern int character_is_underscore  (char);
+extern int character_is_hexadecimal (char);
 
 extern int character_compare_array (char, char *, int);
 
@@ -140,4 +143,7 @@ extern void terminal_clear       (void);
 extern void terminal_style       (int, int);
 extern void terminal_show_cursor (int);
 
+extern int    encode_byte (char *);
+extern char * decode_byte (int);
+
 #endif