Configuration Ideas

Here are some theoretical configuration ideas that we could implement some
time.

%Attr.IDPrefix - prefix all ids with this
%Attr.RewriteFragments - if there's %Attr.IDPrefix we may want to transparently
    rewrite the URLs we parse too.  However, we can only do it when it's a pure
    anchor link, so it's not foolproof

// determines how the classes array should be construed:
// blacklist - allow allow except those in $classes_blacklist
// whitelist - only allow those in $classes_whitelist
// when one is chosen, the other has no effect
%Attr.ClassBlacklist 
%Attr.ClassWhitelist 
%Attr.ClassListMode 

// designate whether or not to allow numerals in language code subtags
// RFC 1766, the current standard referenced by XML, does not permit
//           numbers, but,
// RFC 3066, the superseding best practice standard since January 2001,
//           permits them.
// we allow numbers by default, although you generally never see them
// at all.
%Attr.LangAlphaOnly 

// max amount of pixels allowed to be specified
var $attr_pixels_hmax = 600;  // horizontal context
var $attr_pixels_vmax = 1200; // vertical context

// allowed URI schemes
var $uri_schemes = array(
    // based off of MediaWiki's default settings
    // the ones that definitely must be implemented (they're the same though)
    'http'  => true, // "Hypertext Transfer Protocol", nuf' said
    'https' => true, // HTTP over SSL (Secure Socket Layer)
    // quite useful, but not necessary
    'mailto' => true,// Email
    'ftp'   => true, // "File Transfer Protocol"
    'irc'   => true, // "Internet Relay Chat", usually needs another app
    // obscure
    'telnet' => true,// network protocol for non-secure remote terminal sessions
    // for Usenet, these two are similar, but distinct
    'nntp'  => true, // individual Netnews articles
    'news'  => true  // newsgroup or individual Netnews articles
    // gopher and worldwind excluded
);

// will munge all URIs to a different URI, which should redirect
// the user to the applicable page. A urlencoded version of the URI
// will replace any instances of %s in the string. One possible
// string is 'http://www.google.com/url?q=%s'. Useful for preventing
// pagerank from being sent to other sites
var $uri_munge = false;

// will add rel="nofollow" to all links, also helps prevent pagerank
// from going around
var $uri_add_relnofollow = false;

// web root of the website, we'll try to auto-detect it. Something
// like 'www.example.com/'???
var $uri_webroot = null;

// transform all relative URIs into their absolute forms, requires
// $uri_webroot
var $uri_make_absolute = false;

// disables external links, requires $uri_webroot
var $uri_disable_external = false;