[xslt] str:split skips empty tokens?

[umage <theultramage gmail com>]

Hello. I wrote a short text2html function that splits input using 
str:split($text, '
'), then runs a for-each through every token and 
appends a <br/>. However, this loop ignores empty lines.

The page http://www.exslt.org/str/functions/split/str.split.html does 
not include nor exclude such behavior, so this has left me somewhat 
confused...