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  1. #include <stdio.h>
  2. 	#include <stdlib.h>
  3. 	#include <string.h>
  4. 	#include <stdbool.h>
  5.  
  6. 	#define MARKUP_LEN      7
  7.  
  8. 	void place_char(char *string, char toPlace, int index, bool reg) {
  9. 		switch (reg) {
  10. 			case true:
  11. 				string[index] = toPlace;
  12. 				break;
  13. 			case false:
  14. 				string[index] = '[';
  15. 				string[index + 1] = toPlace;
  16. 				string[index + 2] = ']';
  17. 				break;
  18. 			default:
  19. 				fprintf(stderr, "error\n");
  20. 		}
  21. 	}
  22.  
  23. 	int main(void) {
  24. 		char buffer[1025];
  25. 		while (fgets(buffer, 1025, stdin) != NULL) {
  26. 			if (buffer[strlen(buffer) - 1] == '\n') {
  27. 				buffer[strlen(buffer) - 1] = '\0';
  28. 			}
  29. 			size_t orig_str_len = strlen(buffer);
  30. 			char *new_string = calloc(orig_str_len * 4 + 1, sizeof(char));
  31. 			short markup = 1;
  32. 			int i = 0;
  33. 			unsigned int index;
  34. 			for (index = 0; index < orig_str_len; index++) {
  35. 				if (buffer[index] != ' ') { 
  36. 					place_char(new_string, '0' + markup, i, false);
  37. 					i += 3;
  38. 				} else {
  39.                                     markup--;
  40.                             }
  41. 				place_char(new_string, buffer[index], i, true);
  42. 				i += 1;
  43. 				markup++;
  44. 				if (markup > MARKUP_LEN)
  45. 					markup = 1;
  46. 			}
  47. 			printf("\tOriginal: %s\n\tRainbow: %s\n", buffer, new_string);
  48. 			free(new_string);
  49. 		}
  50. 		return EXIT_SUCCESS;
  51. 	}
Success #stdin #stdout 0s 9432KB
comments (?)
stdin 
Hello!?
Welcome to the server!
stdout 
	Original: Hello!?
	Rainbow: [1]H[2]e[3]l[4]l[5]o[6]![7]?
	Original: Welcome to the server!
	Rainbow: [1]W[2]e[3]l[4]c[5]o[6]m[7]e [1]t[2]o [3]t[4]h[5]e [6]s[7]e[1]r[2]v[3]e[4]r[5]!
https://ideone.com/OWYmPb
language:
C (gcc 8.3)
created:
8 years ago
visibility:
public

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