method

basename

v1_9_3_125 - Show latest stable - 1 note - Class: File

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")          #=> "ruby.rb"
File.basename("/home/gumby/work/ruby.rb", ".rb")   #=> "ruby"

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, f, 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;
}

January 27, 2010

3 thanks

For the file path use File.dirname

File.dirname provides what File.basename omits.

basename

Related methods

For the file path use File.dirname