[vorbis] Comment editor?

[Alexander Hvostov]

Kenneth,

Again, the simplest of the interfaces should be simple, and more complex
interfaces should be built on top of it. I think that by default, the
simple interface should add another instance of the tag if one instance
already exists.

$ vorbis-comment-editor --list
[1] FIELD1: text...
[2] FIELD1: text...
[3] FIELD2: 123
$ vorbis-comment-editor --remove=2
$ vorbis-comment-editor --list
[1] FIELD1: text...
[2] FIELD2: 123
$ vorbis-comment-editor --add --field=FIELD1 --value="text..."
$ vorbis-comment-editor --list
[1] FIELD1: text...
[2] FIELD2: 123
[3] FIELD1: text...
$ vorbis-comment-editor --replace=2 --value=234
$ vorbis-comment-editor --list
[1] FIELD1: text...
[2] FIELD2: 234
[3] FIELD1: text...

Above all, the output needs to be easily parsed, as well as being human
readable, which the above format (I think) does. Still, that's not such a
big thing as how to get the interface to do the needed functions...

$ vorbis-comment-editor --help
Usage:
  vorbis-comment-editor [options] --add --field=FIELD --value=VALUE
  vorbis-comment-editor [options] --remove=NUMBER
  vorbis-comment-editor [options] --replace=NUMBER --value=VALUE
  vorbis-comment-editor [options] --list

Commands:
  --add			Adds a field of type FIELD with value VALUE.
  --remove		Removes field number NUMBER; numbers come from the
                        numbers in brackets shown by the --list command.
  --replace		Replaces field number NUMBER with new value VALUE.
  --list		Lists existing fields, along with their numbers
                        and values.

Options:
  --file=FILE		Opens and processes FILE instead of standard
                        input; the modified Vorbis stream will be written
                        to FILE instead of standard output.

...any suggestions?

Regards,

Alex.


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On Sat, 29 Jul 2000, Michael Smith wrote:

> 
> On Sat, 29 Jul 2000 16:13:28 Alexander Hvostov wrote:
> > Kenneth,
> > 
> > $ vorbis-comment-editor --field=FIELD123 --value="Value ..."
> > 
> > Keep the simple interface...simple. That way, people can build shell
> > scripts or whatever on top of that.
> 
> The problem is that an interface this simple doesn't actually work. What 
> happens when you add a field, but that field already exists? Do you add a
> second instance of that tag (explicitly allowed by the spec), or do you
> replace the current one? Obviously, both behaviours will be needed at
> different times, and so the 'simple' interface can't be quite so simple. 
> 
> It'd also be useful to have an interactive mode (though this might be better
> in a seperate tool).
> 
> Michael
> 
> 
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