Kornelius Kalnbach wrote:

The TIOBE index lists languages by popularity. While mostly useless to find out which language is the best, it's perfect to determine which languages you should support in a syntax highlighter library.

As of February, the Top 10 are:

1. (削除) Java (削除ここまで) [done]
2. (削除) C (削除ここまで) [done]
3. (削除) C++ (削除ここまで) [done]
4. (Visual) Basic
5. (削除) PHP (削除ここまで) [done]
6. C#
7. (削除) Python (削除ここまで) [done]
8. Perl
9. Delphi
10. (削除) JavaScript (削除ここまで) [done]

From Redmine: http://odd-eyed-code.org/issues/82