On Thu, Dec 02, 2010 at 08:14:37PM +0100, Olaf van der Spek wrote: > On Thu, Dec 2, 2010 at 5:57 PM, Thomas Thurman > <thomas.thurman@collabora.co.uk> wrote: > > I am proposing an escape sequence which, when transmitted over SSH or > > telnet, requests the client to display a desktop notification. I have > > written up a description, with some example code, at > > > > http://people.collabora.co.uk/~tthurman/notify/ > > > ECMA-48 declares that OSC codes are user-defined; 55 was chosen arbitrarily, > > Doesn't that mean it should be left available for the user? I don't think so; what could the user possibly use it for? ECMA-48 defines a general set of coded control functions for terminals to implement--these are intended for terminal-specific extensions, and this would count as such. I'm not sure I agree with enabling such functionality though--look how the existing facility to set the terminal window title has been abused. Notifications open up an even messier can of worms. §8.3.89 OSC - OPERATING SYSTEM COMMAND Is the desired functionality an "operating system command"? It's a "notification message", so no, though it could be interpreted to allow this-and ECMA-48 is only guidelines for implementors; how to use this is entirely implementation-defined. Also note that it's limited to a specific ASCII subset, so no UTF-8... The encoding restrictions also apply to all other "string" commands. APC might be more appropriate--it's a command sent to the device from the application. Or DCS (only process if SRTM is enabled with SM). Would allow turning the facility on and off, though a rogue application could just enable it. Still not sure this is necessarily applicable though--this is for device control. Again restricted to ASCII subset. Regards, Roger -- .''`. Roger Leigh : :' : Debian GNU/Linux http://people.debian.org/~rleigh/ `. `' Printing on GNU/Linux? http://gutenprint.sourceforge.net/ `- GPG Public Key: 0x25BFB848 Please GPG sign your mail.
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