File.open takes modes and options as arguments.
Where do I find a list of modes and options?
+2
A:
In that Ruby IO module documentation, I suppose.
Mode | Meaning
-----+--------------------------------------------------------
"r" | Read-only, starts at beginning of file (default mode).
-----+--------------------------------------------------------
"r+" | Read-write, starts at beginning of file.
-----+--------------------------------------------------------
"w" | Write-only, truncates existing file
| to zero length or creates a new file for writing.
-----+--------------------------------------------------------
"w+" | Read-write, truncates existing file to zero length
| or creates a new file for reading and writing.
-----+--------------------------------------------------------
"a" | Write-only, starts at end of file if file exists,
| otherwise creates a new file for writing.
-----+--------------------------------------------------------
"a+" | Read-write, starts at end of file if file exists,
| otherwise creates a new file for reading and
| writing.
-----+--------------------------------------------------------
"b" | (DOS/Windows only) Binary file mode (may appear with
| any of the key letters listed above).
floatless
2010-09-10 05:13:34
Thanks for the list of the moes. But where are the list for the options: File.open(filename, mode="r" [, opt]) => file
never_had_a_name
2010-09-10 05:23:06
Where did you find that? Unfortunately, I can't find `File.open(filename, mode="r" [, opt])` in the documentation.
floatless
2010-09-10 05:29:09
@floatless. in the api for File class. Go to class "File" then click the method "open".
never_had_a_name
2010-09-10 05:31:06
I suppose, it's some experimental, that is not implemented yet. And I still don't get about what API do you speak. Give a link.
Nakilon
2010-09-10 05:31:33
I can see only `File.new(filename [, mode [, perm]]) => file` and the next comment: `Optional permission bits may be given in perm.`, so `File.new("newfile", File::CREAT|File::TRUNC|File::RDWR, 0644)`. Huh? (Link: http://ruby-doc.org/core/classes/File.src/M002579.html)
floatless
2010-09-10 05:35:19
@floatless: http://i53.tinypic.com/2nq9ji9.png
never_had_a_name
2010-09-10 05:53:35
+1
A:
opt is new for ruby 1.9. The various options are documented in IO.new : http://ruby-doc.org/ruby-1.9/classes/IO.html#M000131
Shadwell
2010-09-10 08:42:58