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util: add split_spaces() call

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This commit is contained in:
Lennart Poettering 2009-11-19 02:50:21 +01:00
parent ed5bcfbe3c
commit a41e8209be
2 changed files with 24 additions and 0 deletions
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19
util.c
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@ -145,3 +145,22 @@ int safe_atoi(const char *s, int *ret_i) {
*ret_i = (unsigned) l;
return 0;
}
/* What is interpreted as whitespace? */
#define WHITESPACE " \t\n"
/* Split a string into words. */
char *split_spaces(const char *c, size_t *l, char **state) {
char *current;
current = *state ? *state : (char*) c;
if (!*current || *c == 0)
return NULL;
current += strspn(current, WHITESPACE);
*l = strcspn(current, WHITESPACE);
*state = current+*l;
return (char*) current;
}

5
util.h
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@ -59,4 +59,9 @@ int parse_boolean(const char *v);
int safe_atou(const char *s, unsigned *ret_u);
int safe_atoi(const char *s, int *ret_i);
char *split_spaces(const char *c, size_t *l, char **state);
#define FOREACH_WORD(word, length, s, state) \
for ((state) = NULL, (word) = split_spaces((s), &(l), &(state)); (word); (word) = split_spaces((s), &(l), &(state)))
#endif