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  1. #include <stdio.h>
  2.  
  3. #define	MAX_LENGTH	100
  4.  
  5. int is_blank( char c )
  6. {
  7. 	return c == ' ' || c == '\t';
  8. }
  9. /*
  10. char * capitalize( char *s )
  11. {
  12. 	if ( *s )
  13. 	{
  14. 		int blank = is_blank( *s );
  15.  
  16. 		if ( !blank )
  17. 		{
  18. 			*s -= 'a' - 'A';
  19. 		}
  20.  
  21. 		capitalize( s + 1 );
  22.  
  23. 		if ( !blank && !is_blank( *( s + 1 ) ) && *( s + 1 ) )
  24. 		{
  25. 			*( s + 1 ) += 'a' - 'A';
  26. 		}
  27. 	}
  28.  
  29. 	return s;
  30. }
  31. */
  32.  
  33. char * capitalize( char *s )
  34. {
  35. 	static size_t i = 0;
  36.  
  37. 	if ( *( s + i ) )
  38. 	{
  39. 		if ( i == 0  || is_blank( s[i-1] ) )
  40. 		{
  41. 			s[i] -= 'a' - 'A';
  42. 		}
  43.  
  44. 		++i;
  45.  
  46. 		capitalize( s );
  47.  
  48. 		--i;
  49. 	}
  50.  
  51. 	return s;
  52. }
  53.  
  54. size_t read_line( char *s, size_t n )
  55. {
  56. 	int ch;
  57. 	size_t i = 0;
  58.  
  59.     while ( i + 1 < n && ( ch = getchar() ) != EOF && ch != '\n' )
  60.     {
  61. 		s[i++] = ch;
  62.     }
  63.  
  64.     s[i] = '\0';
  65.  
  66.     return i;
  67. }
  68.  
  69. int main(void) 
  70. {
  71. 	char s[MAX_LENGTH];
  72.  
  73. 	read_line( s, MAX_LENGTH );
  74.  
  75. 	puts( s );
  76.  
  77. 	puts( capitalize( s ) );
  78.  
  79. 	return 0;
  80. }
  81.  
Success #stdin #stdout 0s 4508KB
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stdin
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hello everybody. how do you do?
stdout
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hello everybody. how do you do?
Hello Everybody. How Do You Do?
https://ideone.com/U7X42s
language:
C99 (gcc 8.3)
created:
4 years ago
visibility:
public

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