Is it a Unicode Font?
To determine if your font is Unicode-compliant, with all its characters coded and mapped correctly, choose the Font in any program (or in Font Book, set the preview area to Custom (Preview > Custom), and type Option-Shift-2.
If you get a euro character (a sort of uppercase C with two horizontal lines through its midsection), it's 99.9 percent certain the font is Unicode-compliant. If you get a graphic character that's gray rounded-rectangle frame with a euro character inside it, the font is definitely not Unicode-compliant. (The fact that the image has a euro sign in it is only coincidental: it's the image used for any missing currency sign.)
This assumes that you're using U.S. input keyboard, which is a little ironic when the euro symbol is the test. With the British keyboard, for instance, Option-2 produces the euro symbol if it's part of the font.
Series: ReadMe Rules
A ReadMe file isn't an afterthought: it's a necessity that can make or break a product.
Article 1 of 3 in series
Lately I've spent a lot of time sorting through shareware and freeware utilities for a number of projects, trying to find basic facts for each utility, such as what the utility does, who wrote it (first and last name), how I should pay if I like it, and how I can reach the author by emailShow full article
Article 2 of 3 in series
TidBITS readers sent in a number of helpful or amusing comments in response to my "ReadMe Files? Read This!" article last week in TidBITS-279Show full article
Article 3 of 3 in series
Almost exactly a year ago in TidBITS-279, I wrote an article about ReadMe files, those hopefully informative documents that come with most software. In that article, I pleaded with ReadMe file writers to consider their readers, and not to neglect certain information that users (and reviewers) might be seekingShow full article