Export the embedded font names in CSS comments

[ghost]

This would be useful for post processing as discussed in #117.
Such meta data are very valuable.

[coolwanglu]

The comments are useless in CSS, I don't want to expose them, plus I have to handle special characters in order to prevent injection.
How about export them in a log file?

[ghost]

Feel free to sanitize font names with a whitelist of allowed characters [a-zA-Z0-9_-\+ ] or even [a-zA-Z0-9 ].
I don't think comments are useless in CSS, it would be easier for post processing code to take hints from a CSS comment closer to the embedded font. .f1{/* Arial */ @font-face...}. If log file is easier to implement, that's fine. As long as meta data does not get lost.

[coolwanglu]

I think I will add the name to the list of font-family, which should make sense.

[coolwanglu]

@drinkupper Now I make font names printed if you use the --debug 1 parameter, is that enough for you?

I've just checked the CSS standard about identity names, and there are quite some rules, e.g. an identity name cannot start with a digit. So I don't think it's easy and safe to put it in font-family. But debug output is always safe to me.

[coolwanglu]

Please reopen if necessary.