Just for the archive, forwarding from asciidoc author Stuart Rackham, not solution but workaround:
> In brief, I hope that new asciidoc will keep urls as is, instead of > doing text formatting to it:. . . To revert to version 7 behavior put the v7 compatibility attribute on the command-line: -a asciidoc7compatible > Also IMHO, the most common use of superscripts and subscripts are in > math and chemical equations. In such case, the superscripts and > subscripts are rather short. . . To drop the super/subscripts definitions put the following lines in a custom .conf file or change in your global asciidoc.conf file: [quotes] ^= ~= Another trick, you can selectively choose which substitutions to perform by setting the subs attribute at the start of a block, for example: [subs="specialcharacters,macros"] ~subscripts~ and ^super scripts^ quotes won't be substituted. Nor will http://host/~user/file#_anchor_tag_str_[] -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]