basename (p1, p2 = v2)
public
Returns the last component of the filename given in file_name,
which must be formed using forward slashes (“/”) regardless of the
separator used on the local file system. If suffix is given and
present at the end of file_name, it is removed.
File . basename (" /home/gumby/work/ruby.rb ")
File . basename (" /home/gumby/work/ruby.rb ", " .rb ") Show source static VALUE
rb_file_s_basename(int argc, VALUE *argv)
{
VALUE fname, fext, basename;
const char *name, *p;
long f, n;
if (rb_scan_args(argc, argv, "11", &fname, &fext) == 2) {
rb_encoding *enc;
StringValue(fext);
if (!rb_enc_asciicompat(enc = rb_enc_get(fext))) {
rb_raise(rb_eEncCompatError, "ascii incompatible character encodings: %s",
rb_enc_name(enc));
}
}
FilePathStringValue(fname);
if (!NIL_P(fext)) rb_enc_check(fname, fext);
if (RSTRING_LEN(fname) == 0 || !*(name = RSTRING_PTR(fname)))
return rb_str_new_shared(fname);
p = ruby_find_basename(name, &f, &n);
if (n >= 0) {
if (NIL_P(fext) || !(f = rmext(p, n, StringValueCStr(fext)))) {
f = n;
}
if (f == RSTRING_LEN(fname)) return rb_str_new_shared(fname);
}
basename = rb_str_new(p, f);
rb_enc_copy(basename, fname);
OBJ_INFECT(basename, fname);
return basename;
} 1Note File.dirname provides what File.basename omits.