The default behaviour for trim appears flawed.

Under IOS:

>> trim test1: { this is an embedded tab ^-which will be left alone }
== "this is an embedded tab ^-which will be left alone"
>> trim test2: { this is an embedded tab ^/^-which gets clobbered }
== "this is an embedded tab^/which gets clobbered"
>> trim/head/tail test2: { this is an embedded tab ^/^-which is left alone }
== "this is an embedded tab ^/^-which is left alone"

--
Graham Chiu
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