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  1. #define WINDOWS_OS !defined(__linux__) && !defined(__unix__) && !defined(__APPLE__)
  2.  
  3. #if WINDOWS_OS
  4. #  include <fcntl.h>
  5. #  include <io.h>
  6. #else
  7. #  include <sys/param.h>
  8. #endif
  9. #include <stdio.h>
  10. #include <stdlib.h>
  11. #include <string.h>
  12.  
  13. #if WINDOWS_OS
  14. #  if defined(__BORLANDC__)
  15. #    define _setmode(f,t)   setmode((f), (t))
  16. #    define _O_BINARY       O_BINARY
  17. #  endif
  18. #  define DS_CODE           ('\\')
  19. #else
  20. #  define _setmode(f,t)     (0)
  21. #  define _O_BINARY         
  22. #  define DS_CODE           ('/')
  23. #  define _MAX_PATH         MAXPATHLEN
  24. #  define _fullpath(a,r,n)  realpath((r), (a))
  25. #endif
  26.  
  27. #define ArrLen(arr)  (sizeof(arr) / sizeof((arr)[0]))
  28.  
  29. #define SIZE         (1000)
  30. #define LF_CODE      (0x0A)
  31. #define CR_CODE      (0x0D)
  32. #define OUTPUT_SW    ("-o")
  33.  
  34. #define ErrCheck(e)              \
  35. 	{                            \
  36. 		if (e) {                 \
  37. 			perror(NULL);        \
  38. 			exit(EXIT_FAILURE);  \
  39. 		}                        \
  40. 	}
  41.  
  42. #define ErrDown(m)                   \
  43. 	{                                \
  44. 		usage(args[0]);              \
  45. 		fprintf(stderr, "Error: ");  \
  46. 		fprintf(stderr, m);          \
  47. 		exit(EXIT_FAILURE);          \
  48. 	}
  49.  
  50. void usage(const char arg0[]);
  51.  
  52. /* CRコードを削除する。 */
  53.  
  54. int main(int argc, char *args[]) {
  55.  
  56. 	int ch;
  57. 	char data[SIZE + 1], out[SIZE + SIZE + 1];
  58. 	int i, sz, md, j, flag;
  59. 	FILE *input = NULL, *output = NULL;
  60. 	char path1[_MAX_PATH + 1], path2[_MAX_PATH + 1];
  61.  
  62. 	if (argc > 4) {
  63. 		ErrDown("a lot of argument!\n");
  64. 	}
  65.  
  66. 	if (argc > 1) {
  67. 		switch (argc) {
  68. 			case 2: {
  69. 				if ((strcmp(args[1], "--help") == 0)
  70. 						|| (strcmp(args[1], "-h") == 0)
  71. 						|| (strcmp(args[1], "-?") == 0)
  72. 						|| (strcmp(args[1], "/?") == 0)) {
  73. 					usage(args[0]);
  74. 					return 0;
  75. 				}
  76. 				input = fopen(args[1], "rb");
  77. 				ErrCheck(input == NULL);
  78. 				break;
  79. 			}
  80. 			case 3: {
  81. 				if (strcmp(args[1], OUTPUT_SW) != 0) {
  82. 					ErrDown("syntax error!\n");
  83. 				}
  84. 				output = fopen(args[2], "wb");
  85. 				ErrCheck(output == NULL);
  86. 				break;
  87. 			}
  88. 			case 4: {
  89. 				i = 1;
  90. 				j = 3;
  91. 				if (strcmp(args[1], OUTPUT_SW) == 0) {
  92. 					i = 3;
  93. 					j = 2;
  94. 				} else if (strcmp(args[2], OUTPUT_SW) != 0) {
  95. 					ErrDown("syntax error!\n");
  96. 				}
  97. 				if (_fullpath(path1, args[i], ArrLen(path1)) == NULL) {
  98. 					ErrDown("illegal input file!\n");
  99. 				}
  100. 				if (_fullpath(path2, args[j], ArrLen(path2)) == NULL) {
  101. 					ErrDown("illegal output file!\n");
  102. 				}
  103. 				if (strcmp(path1, path2) == 0) {
  104. 					ErrDown("the same input file as ouput file!\n");
  105. 				}
  106. 				input = fopen(path1, "rb");
  107. 				ErrCheck(input == NULL);
  108. 				output = fopen(path2, "wb");
  109. 				ErrCheck(output == NULL);
  110. 				break;
  111. 			}
  112. 			default: {
  113. 				break;
  114. 			}
  115. 		}
  116. 	}
  117.  
  118. 	if (input == NULL) {
  119. 		md = _setmode(_fileno(stdin), _O_BINARY);
  120. 		ErrCheck(md == -1);
  121. 		input = stdin;
  122. 	}
  123.  
  124. 	if (output == NULL) {
  125. 		md = _setmode(_fileno(stdout), _O_BINARY);
  126. 		ErrCheck(md == -1);
  127. 		output = stdout;
  128. 	}
  129.  
  130. 	flag = 0;
  131. 	while ((sz = fread(data, sizeof(data[0]), ArrLen(data), input)) != 0) {
  132. 		j = 0;
  133. 		for (i = 0; i < sz; ++i) {
  134. 			if (flag == 1) {
  135. 				flag = 0;
  136. 				if (data[i] != LF_CODE) {
  137. 					out[j] = LF_CODE;
  138. 					++j;
  139. 				}
  140. 			}
  141. 			if (data[i] == CR_CODE) {
  142. 				flag = 1;
  143. 				continue;
  144. 			}
  145. 			out[j] = data[i];
  146. 			++j;
  147. 		}
  148. 		fwrite(out, sizeof(out[0]), j, output);
  149. 	}
  150.  
  151. 	if (input != stdin) {
  152. 		fclose(input);
  153. 	}
  154.  
  155. 	if (output != stdout) {
  156. 		fclose(output);
  157. 	}
  158.  
  159. 	return 0;
  160. }
  161.  
  162. void usage(const char arg0[]) {
  163. 	int i, j;
  164. 	j = 0;
  165. 	for (i = 0; arg0[i] != '\0'; ++i) {
  166. 		if (arg0[i] == DS_CODE) {
  167. 			j = i + 1;
  168. 		}
  169. 	}
  170. 	puts("Delete CR-Code(0x0D)");
  171. 	printf("  usage: %s [-o <Output File>] [<Input File>]\n", &arg0[j]);
  172. }
  173.  
Success #stdin #stdout 0s 2296KB
comments (?)
stdin 
よし
たぶん
CRコードの削除出来てるはず！
stdout 
よし
たぶん
CRコードの削除出来てるはず！
https://ideone.com/4wMhWC
CRコード(0x0D)を削除したい
language:
C (gcc 8.3)
created:
10 years ago
visibility:
public

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