On Tue, 16 Mar 2021, Emil Elmarsson wrote:
I'm not sure where to contact you or if you have an issue tracker
somewhere, so tell me if I should ask this question somewhere else.
Apache POI uses Bugzilla for issue tracking:
https://bz.apache.org/bugzilla/describecomponents.cgi?product=POI
I was wondering why your implementation of the Excel TRIM function doesn't
remove extra whitespace, but rather only removes leading and trailing
whitespace like Java's trim function.
Probably because it's implemented with the Java trim function! :)
https://github.com/apache/poi/blob/trunk/src/java/org/apache/poi/ss/formula/functions/TextFunction.java#L153
Excel: TRIM(" a b ") -> "a b" (3 characters)
Java: String a = " a b ".trim(); -> "a b" (5 characters)
If you're able to work up a fix for this, ideally with a unit test that
shows the issue (possibly by adding a few more cells into the TRIM rows in
test-data/spreadsheet/FormulaEvalTestData.xls ?), that'd be great!
Nick
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