[OS X TeX] Hyperlink failure with TeXShop and Preview

[Peter Dyballa]

Am 10.02.2007 um 08:43 schrieb Bruno Voisin:

> Does anybody know whether something can be done about this? Is this  
> an Apple bug? Or are < and > proscribed in theory in URLs? Is there  
> a special way of inputting < and > in hyperlink destinations with  
> hyperref that would avoid the above problem?

There are some rules about URLs and other URIs, for example RFC 2396  
(http://www.ietf.org/rfc/rfc2396.txt). It defines a set of delimiters:

    delims      = "<" | ">" | "#" | "%" | <">

and another set of "unwise" characters:

    unwise      = "{" | "}" | "|" | "\" | "^" | "[" | "]" | "`"

And finally there is also a set of reserved characters that have  
always a special meaning:

       reserved    = ";" | "/" | "?" | ":" | "@" | "&" | "=" | "+" |  
"$" | ","

All these should not or cannot be used as themselves when they are  
meant to stand for themselves, they need to be "escaped." And this is  
done in HTML as ``%[HEX1][HEX2]´´.


It would be nice if the url or hyperref packages could do the  
escaping, too! The url package documents:

	% \url{ }   If the argument contains any "%", "#", or "^^", or ends  
with
	%           "\", it can't be used in the argument to another command.
	%           The argument must not contain unbalanced braces.

Obviously it only cares for TeX syntax – and its users have to know  
URI or URL syntax!

--
Greetings

   Pete

Make it simple, as simple as possible but no simpler.
                               Albert Einstein



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