How do I search for individuals characters in the Launchpad bugs database?

Currently there isn't an easy way to search for a specific glyph if searching for its Unicode name ("LATIN CAPITAL LETTER S") did not find it. There are a number of tags such as 'uff-greek', 'uff-mono' that allow one to narrow do, and things could be made even more specific.

We /could/ possibly go through and tag all of the bugs in the style 'U+0053' or 'uff-u-0053'. It would take a bit of work, but if you'd be willing to help we could probably get it done in a couple of days?

Would that be of interest to do you? Would you be willing to organise such a tagging exercise?

Sure, that sounds interesting. I think it would be useful to just have the codepoint in the tag, so one could search for a letter in all fonts for some reason. Then to find 'S' in this font you would have to search for 2 tags (both U+0053 and uff-Latin). Do you think the Unicode name belongs in a tag, or is there some other way to make that useful?

I don't think tagging the name would be useful; you'd likely find it via full-text search if it was there anyway.

Would you be able to do some tests to see whether '+' is allowed in a tag? And proposed something that works?

Tags do allow '+' e.g. "U+0053" search also seems to work OK. https://launchpad.net/+search?field.text=u%2B0053 shows lots of results for U+0053, although it seems like the search just ignores the +, which is probably OK. Searching "U-0053" returns slightly different results but still looks OK. I filed a bug https://bugs.launchpad.net/ubuntu/+source/ubuntu-font-family-sources/+bug/887243 which seems to work OK and shows up in both sets of search results.