IO::generic_readable
module IO::generic_readable
公共实例方法
getch(min: nil, time: nil) → char 显示源文件
See IO#getch.
static VALUE
io_getch(int argc, VALUE *argv, VALUE io)
{
return rb_funcallv(io, id_getc, argc, argv
}
getpass(prompt=nil) → string Show source
See IO#getpass.
static VALUE
io_getpass(int argc, VALUE *argv, VALUE io)
{
VALUE str;
rb_check_arity(argc, 0, 1
prompt(argc, argv, io
str = str_chomp(rb_funcallv(io, id_gets, 0, 0)
puts_call(io
return str;
}
read_nonblock(integer[, outbuf , opts]) → string Show source
与读取类似,但EOFError
在字符串结尾处引发,除非传入+ exception:false +选项。
static VALUE
strio_read_nonblock(int argc, VALUE *argv, VALUE self)
{
VALUE opts = Qnil, val;
rb_scan_args(argc, argv, "11:", NULL, NULL, &opts
if (!NIL_P(opts)) {
argc--;
}
val = strio_read(argc, argv, self
if (NIL_P(val)) {
if (!NIL_P(opts) &&
rb_hash_lookup2(opts, sym_exception, Qundef) == Qfalse)
return Qnil;
else
rb_eof_error(
}
return val;
}
readbyte → fixnum Show source
See IO#readbyte.
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;
}
readchar → string Show source
See IO#readchar.
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;
}
readline(sep=$/) → string Show source
readline(limit) → string or nil
readline(sep, limit) → string or nil
See IO#readline.
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;
}
readpartial(integer, outbuf) → 字符串显示源文件
类似于读取,但是EOFError
在字符串结尾而不是返回nil
,以及 IO#sysread。
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;
}
sysread(integer, outbuf) → 字符串显示源文件
类似于读取,但是EOFError
在字符串结尾而不是返回nil
,以及 IO#sysread。
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;
}