SQLite in Ruby: Prepared statement cutting UTF-8 input

问题

I'm having an issue where variables are cut when they contain special characters. This is a complete reproducable program that should run in irb:

require 'sqlite3'
db = SQLite3::Database.new ":memory:"
db.query "CREATE TABLE test (id INTEGER PRIMARY KEY, key TEXT, value TEXT)"
db.query "INSERT INTO test(key, value) VALUES(?, ?)", "foo", "baræøå"
db.get_first_value "SELECT value FROM test"

This yields:

=> bar

If I have understood it correctly, the database should default to UTF-8, and indeed, if I edit the database with an editing tool and insert "æøå" at the end of the string, ruby is able to select it and output it correctly. Did I miss something or is this a bug?

EDIT

This only seems to reproducable in irb on Mac OS X. If your configuration is anything else, please disregard this question.

回答1:

(We tried in an IRC session) Entering the code for him resulted in:

irb(main):004:0> db.query "INSERT INTO test(key, value) VALUES(?, ?)", "foo", "bar\U+FFC3\U+FFA6\U+FFC3\U+FFB8\U+FFC3\U+FFA5"

Since "æ" is "\u00e6" and not "\uffc3" it was evident that the data got corrupted on entry. Readline::VERSION revealed that his ruby was built against EditLine instead of Readline. Editline is OS X' broken Readline replacement.

Replacing editline with readline should solve this issue.

Edit:

Using escape sequences instead of literal UTF-8 would work too.