+! Copyright (C) 2017 Pi.
+! See http://factorcode.org/license.txt for BSD license.
+USING: help.markup help.syntax strings ;
+IN: unicode.control-pictures
+
+HELP: control-pictures
+{ $values
+ { "string" string }
+}
+{ $description "Transforms C0 control characters into their corresponding Control Picture block codepoints." } ;
+
+ARTICLE: "unicode.control-pictures" "Control Pictures"
+"The " { $vocab-link "unicode.control-pictures" } " vocabulary provides a utility word " { $link control-pictures } " for transforming characters in the nonprintable " { $url "http://www.unicode.org/charts/PDF/U0000.pdf" "ASCII C0 block" } " to their representations in the " { $url "http://www.unicode.org/charts/PDF/U2400.pdf" "Control Pictures" } " block. It has no effect on any other characters."
+;
+
+ABOUT: "unicode.control-pictures"