#include "dirname.h"
#include <string.h>
#include <stdbool.h>

/* Return the address of the last file name component of |name|.  If
   |name| has no relative file name components because it is a file
   system root, return the empty string.  */

char *
last_component(char const *name) {
    char const *base = name + 0;
    char const *p;
    bool saw_slash = false;

    while (((*base) == '/'))
        base++;

    for (p = base; *p; p++) {
        if (((*p) == '/'))
            saw_slash = true;
        else if (saw_slash) {
            base = p;
            saw_slash = false;
        }
    }

    return (char *) base;
}

/* Return the length of the basename |name|.  Typically |name| is the
   value returned by |base_name| or |last_component|.  Act like
   |strlen(name)|, except omit all trailing slashes.  */

size_t
base_len(char const *name) {
    size_t len;

    for (len = strlen(name); 1 < len && ((name[len - 1]) == '/'); len--)
        continue;
    return len;
}