module IO::generic_readable
Public Instance Methods
getch(min: nil, time: nil) → char Show source
static VALUE
io_getch(int argc, VALUE *argv, VALUE io)
{
return rb_funcall2(io, rb_intern("getc"), argc, argv);
}See IO#getch.
read_nonblock(integer[, outbuf [, opts]]) → string Show source
static VALUE
strio_read_nonblock(int argc, VALUE *argv, VALUE self)
{
VALUE opts = Qnil, val;
int no_exception = 0;
rb_scan_args(argc, argv, "11:", NULL, NULL, &opts);
if (!NIL_P(opts)) {
argc--;
if (Qfalse == rb_hash_aref(opts, sym_exception))
no_exception = 1;
}
val = strio_read(argc, argv, self);
if (NIL_P(val)) {
if (no_exception)
return Qnil;
else
rb_eof_error();
}
return val;
}Similar to read, but raises EOFError at end of string unless the +exception: false+ option is passed in.
readbyte → fixnum Show source
static VALUE
strio_readbyte(VALUE self)
{
VALUE c = rb_funcall2(self, rb_intern("getbyte"), 0, 0);
if (NIL_P(c)) rb_eof_error();
return c;
}See IO#readbyte.
readchar → string Show source
static VALUE
strio_readchar(VALUE self)
{
VALUE c = rb_funcall2(self, rb_intern("getc"), 0, 0);
if (NIL_P(c)) rb_eof_error();
return c;
}See IO#readchar.
readline(sep=$/) → string Show source
readline(limit) → string or nil
readline(sep, limit) → string or nil
static VALUE
strio_readline(int argc, VALUE *argv, VALUE self)
{
VALUE line = rb_funcall2(self, rb_intern("gets"), argc, argv);
if (NIL_P(line)) rb_eof_error();
return line;
}See IO#readline.
readpartial(integer[, outbuf]) → string Show source
static VALUE
strio_sysread(int argc, VALUE *argv, VALUE self)
{
VALUE val = rb_funcall2(self, rb_intern("read"), argc, argv);
if (NIL_P(val)) {
rb_eof_error();
}
return val;
}Similar to read, but raises EOFError at end of string instead of returning nil, as well as IO#sysread does.
sysread(integer[, outbuf]) → string Show source
static VALUE
strio_sysread(int argc, VALUE *argv, VALUE self)
{
VALUE val = rb_funcall2(self, rb_intern("read"), argc, argv);
if (NIL_P(val)) {
rb_eof_error();
}
return val;
}Similar to read, but raises EOFError at end of string instead of returning nil, as well as IO#sysread does.
Ruby Core © 1993–2017 Yukihiro Matsumoto
Licensed under the Ruby License.
Ruby Standard Library © contributors
Licensed under their own licenses.