Noissue - Document the new $generichide and $genericblock filter options

pages/filters.html

 title=Writing Adblock Plus filters
 
 
 <p>{{s1 Current Adblock Plus versions allow you to "tweak" your filters in many different ways. This document explains the choices that you have and how they can be used.}}</p>
 
   <p>{{s2 <em>Disclaimer</em>: All filter examples given here are really only examples and are not meant to be used.}}</p>
 
   <h2 id="introduction">{{s3 Introduction to Adblock Plus filters}}</h2>
 
   <p>{{s4 The options described in this section should be enough for users who have to create a filter occasionally.}}</p>
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   other cases limiting this rule to the necessary domains is preferable.}}
 </p>
 
   <h3 id="elemhide_simplified">{{s105 Simplified element hiding syntax}}</h3>
 
   <p>{{s106 Adblock Plus supports simplified element hiding syntax (e.g. <code><fix>#div(id=foo)</fix></code>) for backwards compatibility only. Using this syntax is discouraged, usual CSS selectors are preferred. Support for this syntax might be removed at some point.}}</p>
 
   <h3 id="generic-specific">{{generic-specific-title Generic / Specific filters}}</h3>
 
   <p>{{generic-specific-explanation-p1 With the <code><fix>$generichide</fix></code> and <code><fix>$genericblock</fix></code> filter options the distinction between generic and specific filters becomes important.}}</p>
-  <p>{{generic-specific-explanation-p2 We classify a filter to be <strong>specific</strong> if it matches one or more domains or matches a sitekey. If a filter has no domains specified (or only domain exceptions) and no sitekey then it counts as <strong>generic</strong>. For example <code><fix>example.com##div.textad</fix></code> is a specific filter, where as both <code><fix>##div.textad</fix></code> and <code><fix>~example.com##div.textad</fix></code> are generic.}}</p>
-  <p>{{generic-specific-explanation-p3 Note that with blocking rules the domain must be specified under the $domain option for them to be considered specific. For example <code><fix>||example.com^</fix></code> is considered generic whereas <code><fix>*/ads/*$domain=example.com</fix></code> is site-specific.}}</p>
+  <p>{{generic-specific-explanation-p2 We classify a filter to be <strong>specific</strong> if it matches one or more domains or matches a sitekey. If a filter has no domains specified (or only domain exceptions) and no sitekey then it counts as <strong>generic</strong>. For example, <code><fix>example.com##div.textad</fix></code> is a specific filter, whereas both <code><fix>##div.textad</fix></code> and <code><fix>~example.com##div.textad</fix></code> are generic.}}</p>
+  <p>{{generic-specific-explanation-p3 Note that with blocking rules the domain must be specified under the $domain option for them to be considered specific. For example, <code><fix>||example.com^</fix></code> is considered generic whereas <code><fix>*/ads/*$domain=example.com</fix></code> is site-specific.}}</p>
 
   <h2 id="sitekey_server">{{s107 Implementing a sitekey on the server}}</h2>
 
 <p>
   {{s108 For a <a href="#options">sitekey-restricted filter</a> to apply, a webpage needs to return base64-encoded versions of the public key and a signature which Adblock Plus can validate. Currently, this means including them in both the HTTP response header (<code><fix>X-Adblock-Key: abcdpublickeydcba_abcdsignaturedcba</fix></code>) and the root tag of the document (<code><fix>&lt;html data-adblockkey="abcdpublickeydcba_abcdsignaturedcba"&gt;</fix></code>).}}
 </p>
 
 <p>
   {{s109 First you need to create a private RSA key (preferably 512 bit to keep the transfer volume low) and then a DER representation of the public key.}}
 </p>
 
 <p>
   {{s110 The data used for creating the signature is a concatenated list of request variables (namely URI, host and user agent) separated by the <code><fix>NUL</fix></code> character "\0". For example:}}
 </p>
 
 <pre>
   /index.html?q=foo\0www.example.com\0Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:30.0) Gecko/20100101 Firefox/30.0
 </pre>
 
 <p>
   {{s111 Finally, generate the signature for this string by using the signature algorithm SEC_OID_ISO_SHA_WITH_RSA_SIGNATURE (default when using OpenSSL).}}
 </p>