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/* removed leading/trailing extraneous white space */
static char *rmspace_len(char *s, size_t len)
{
char *p;
/* find the start of trailing space and set it to \0 */
for (p = s + len - 1; (p >= s && isspace(*p)); --p)
continue;
p[1] = '\0';
len = (p - s) + 1;
/* find the end of leading space and set p to it */
for (p = s; (isspace(*p) && *p); ++p)
continue;
/* move the memory backward to overwrite leading space */
if (p != s)
memmove(s, p, len - (p - s) + 1);
return s;
}
static char *rmspace(char *s)
{
return rmspace_len(s, strlen(s));
}
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