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Recently Chris Wallace has been writing about formatting numbers in XQuery; as you may remember, I did blog about an XQuery-based format-number function some time ago, providing a partial implementation.
Chris mentions my post in his Wikibooks entry, and he has been so nice to run some tests and identify a few bugs and limitations. As I've recently had to "enjoy" a red eye flight on my way back to Boston, I couldn't resist the temptation to fix some of those issues.
Attached is a better version; it includes also support for the typical functionality you would access through xsl:decimal-format. The XQuery includes the tests that Chris posted on the Wikibooks entry, plus a few more, whose results are: [cc lang="xquery"]
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