> The reveal codes feature in WordPerfect probably had something to do with its initial popularity because it helped you to be sure that there wasn't text hidde

> The reveal codes feature in WordPerfect probably had something to do with its initial popularity because it helped you to be sure that there wasn't text hidden in the document. Reveal codes is essentially your browser's view source command, but with interactive editing (i.e., with live update of the WYSIWYG output). I never heard of it being used to check for hidden text, though I suppose that's possible. It is used to address formatting issues -- those annoying situations where the word processor is doing something unexpected, or if you want to know if the empty space is a set of spaces or a tab.