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ref: f8978196906ee7a57ebedf6c5a7d09ae1bba89a6 parent: 2850b592998277aef88f3e6769063b741d850d58 author: qwx <qwx@sciops.net> date: Fri Aug 14 20:03:39 EDT 2020
add naive exact string match, resizable vectors and restructure