playing with term color

color.c

/* Set the color : only for Linux
 *
 * with bash
 * foreground \33[38;5;${code}m
 * background \33[48;5;${code}m
 *
 * with c
 * fg: \e[38;5;codem
 * bg: \e[45;5;codem
 * 
 */

#include <stdio.h>

int main()
{

  /* Initialise the main variables
   * colour: for the 256 colours (0-255)
   * space: to insert space or newline
   */

  int colour = 0;
  int space = 0;

  /* Print the 16 first colours, known as colours system */

  printf("System colours:\n");
  for( ; colour < 16; colour++) {
    printf("\e[48;5;%dm  ", colour);
  }
  printf("\e[0m\n\n");

  /* The 216 colours */

  printf("Color cube: 6x6x6\n");
  for ( ; colour < 232; colour++, space++) {
    if ((space%6) == 0) {
      printf("\e[0m ");
    }
    if ((space%36 == 0)) {
      printf("\e[0m\n");
    }
    printf("\e[48;5;%dm  ", colour);
  }
  printf("\e[0m\n\n");

  /* And the grey colours */

  printf("Greayscale ramp\n");
  for ( ; colour < 256; colour++) {
    printf("\e[48;5;%dm  ", colour);
  }
  printf("\e[0m\n\n");
  

  return 0;
}