The Lucene search query format used by the search engine requires ranges to be entered in the form [x to y]. For currency fields in the advanced search this means ranges must be entered as, for example, [$100 to $200]. Most users won't know to use brackets, or might elect to use a dash or hyphen.
We need to have the advanced search automatically rewrite currency range searches in these more natural formats to Lucene. These three formats should be supported:
$100 - $200
$100 – $200
$100 to $200