Funkcja wykończenia
/* Remove leading whitespaces */
char *ltrim(char *const s)
{
size_t len;
char *cur;
if(s && *s) {
len = strlen(s);
cur = s;
while(*cur && isspace(*cur))
++cur, --len;
if(s != cur)
memmove(s, cur, len + 1);
}
return s;
}
/* Remove trailing whitespaces */
char *rtrim(char *const s)
{
size_t len;
char *cur;
if(s && *s) {
len = strlen(s);
cur = s + len - 1;
while(cur != s && isspace(*cur))
--cur, --len;
cur[isspace(*cur) ? 0 : 1] = '\0';
}
return s;
}
/* Remove leading and trailing whitespaces */
char *trim(char *const s)
{
rtrim(s); // order matters
ltrim(s);
return s;
}
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