Completely new stuff, to use as the base...

hl_xolatile.c

@@ -0,0 +1,100 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <ctype.h>
+
+#define UNUSED(x) ((void) (x))
+
+#define ALLOCATION_CHUNK (10UL)
+
+enum {
+	NORMAL,     BOLD,       DARKNESS,   ITALIC,
+	UNDERLINE,  BLINK,      DUNNO_6,    REVERSE,
+	INVISIBLE
+};
+
+enum {
+	GREY,       RED,        GREEN,      YELLOW,
+	BLUE,       PINK,       CYAN,       WHITE,
+	CANCEL
+};
+
+static char * buffer      = NULL;
+static size_t buffer_size = 0;
+
+static void render_character(char * character) {
+	write(STDOUT_FILENO, character, sizeof (*character));
+}
+
+static void render_string(char * string) {
+	write(STDOUT_FILENO, string, strlen(string));
+}
+
+static void render_colour(int colour,
+                          int effect) {
+	char format[8] = "\033[ ;3 m";
+
+	format[2] = (char) (effect % 9) + '0';
+	format[5] = (char) (colour % 8) + '0';
+
+	render_string(format);
+}
+
+static void render_cancel(void) {
+	render_string("\033[0m");
+}
+
+static int is_separator(char character) {
+	if (( isascii(character))
+	&&  (!isalnum(character))
+	&&  (character != '_')) {
+		return 1;
+	} else {
+		return 0;
+	}
+}
+
+static int compare_multiple_strings(char         * string,
+                                    const char * * strings,
+                                    const int      count) {
+	int i = 0;
+
+	do {
+		if (!strcmp(string, strings[i])) {
+			return 1;
+		}
+	} while (++i != count);
+
+	return 0;
+}
+
+int main(int      argc,
+         char * * argv) {
+	UNUSED(argc);
+	UNUSED(argv);
+
+	buffer = realloc(buffer, ALLOCATION_CHUNK);
+
+	do {
+		if (!((buffer_size + 1) % ALLOCATION_CHUNK)) {
+			// Linear incremental reallocation (advanced)!
+			size_t chunks = (buffer_size + 1) / ALLOCATION_CHUNK;
+			buffer = realloc(buffer, ++chunks * ALLOCATION_CHUNK);
+		}
+		buffer[buffer_size] = '\0';
+		read(STDIN_FILENO, &buffer[buffer_size], sizeof (*buffer));
+		++buffer_size;
+	} while (buffer[buffer_size - 1]);
+
+	buffer[buffer_size - 1] = '\0';
+
+	render_colour(RED, BOLD);
+	render_string(buffer);
+	render_cancel();
+
+	free (buffer);
+
+	return 0;
+}

makefile_xolatile

@@ -0,0 +1,8 @@
+default:
+	gcc -g -Wall -Wextra -Wpedantic -o hl hl_xolatile.c
+	clang -g -Weverything -o hl hl_xolatile.c
+
+# 'This shit requires to be in /usr/bin currently...'
+# 'There are unused functions that will be used, ignore now.'
+# 'Next please do [$ sudo cp hl /usr/bin/hl].'
+# 'Then test it with example [$ echo ABCDEF | valgrind hl].'