(((meta (@ (content . "Boolean Value") (name . "title"))) (meta (@ (content . "manual") (name . "role"))) (meta (@ (content . "#manual #reference #zettel #zettelstore") (name . "tags"))) (meta (@ (content . "zmk") (name . "syntax"))) (meta (@ (content . "00001004010000 00001004020000 00001006020400 00001010070200") (name . "back"))) (meta (@ (content . "00001004010000 00001004020000 00001006020400 00001010070200") (name . "backward"))) (meta (@ (content . "1") (name . "box-number"))) (meta (@ (content . "(c) 2020-present by Detlef Stern <ds@zettelstore.de>") (name . "copyright"))) (meta (@ (content . "20210212135017") (name . "created"))) (meta (@ (content . "00001006033500") (name . "forward"))) (meta (@ (content . "en") (name . "lang"))) (meta (@ (content . "EUPL-1.2-or-later") (name . "license"))) (meta (@ (content . "20220304114040") (name . "modified"))) (meta (@ (content . "20220304114040") (name . "published"))) (meta (@ (content . "public") (name . "visibility")))) (p "On some places, metadata values are interpreted as a truth value.") (p "Every character sequence that begins with a " (@L (@H "&ldquo;") "0" (@H "&rdquo;")) ", " (@L (@H "&ldquo;") "F" (@H "&rdquo;")) ", " (@L (@H "&ldquo;") "N" (@H "&rdquo;")) ", " (@L (@H "&ldquo;") "f" (@H "&rdquo;")) ", or a " (@L (@H "&ldquo;") "n" (@H "&rdquo;")) " is interpreted as the boolean " (@L (@H "&ldquo;") "false" (@H "&rdquo;")) " value." " " "All values are interpreted as the boolean " (@L (@H "&ldquo;") "true" (@H "&rdquo;")) " value.") (p "However, there is no full support for a boolean type." " " "Such values are interpreted as a " (a (@ (href . "00001006033500")) "string value") ", e.g. with respect to comparing and sorting."))