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  1. #include <stdlib.h>
  2. #include <stdio.h>
  3. #include <string.h>
  4. #include <ctype.h>
  5.  
  6. void itrim(char **val, size_t *len) {
  7. 	while (*val && **val && isspace(**val)) {
  8. 		(*val)++;
  9. 		(*len)--;
  10. 	}
  11.  
  12. 	while ((*len) && isspace((*val)[(*len) - 1])) {
  13. 		(*len)--;
  14. 	}
  15. }
  16.  
  17. void iuse(char *key, size_t klen, char *value, size_t vlen) {
  18. 	/* original values, original limits */
  19. 	printf("k: %.*s(%d)\n", (int) klen, key, (int) klen);
  20. 	printf("v: %.*s(%d)\n", (int) vlen, value, (int) vlen);
  21.  
  22. 	/* adjust values and limits in place */
  23. 	itrim(&key, &klen);
  24. 	itrim(&value, &vlen);
  25.  
  26. 	/* adjusted values and limits */
  27. 	printf("tk: %.*s(%d)\n", (int) klen, key, (int) klen);
  28. 	printf("tv: %.*s(%d)\n", (int) vlen, value, (int) vlen);
  29. }
  30.  
  31. int main(int argc, char **argv) {
  32. 	char str[] = "Foo : bar\n"; /* you have the header already */
  33. 	size_t len = strlen(str);  /* and it's length */
  34.  
  35. 	char *split = strchr(str, ':');
  36.  
  37. 	if (split) {
  38. 		iuse(
  39. 			str, 
  40. 			split - str, 
  41. 			&str[split - str + 1], 
  42. 			len - (split - str) - 1
  43. 		);
  44. 	}
  45.  
  46. 	return 0;
  47. }
Success #stdin #stdout 0s 10320KB
comments (?)
stdin
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Standard input is empty
stdout
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k: Foo (4)
v:  bar
(5)
tk: Foo(3)
tv: bar(3)
https://ideone.com/090Twh
language:
C (gcc 8.3)
created:
8 years ago
visibility:
public

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