Changes between Initial Version and Version 1 of Transform2

Timestamp:

2009-06-13 20:47:43 (11 years ago)

Author:

speck

Comment:

--

Transform2

@@ +1 @@
+= How transformation script works =
+
+The transform javascript is executed by !GlimmerBlocker and ''not by Safari.'' The script is never sent to Safari but only the result of running the script inside the !GlimmerBlocker proxy.
+
+How the transformation works:
+ 1. !GlimmerBlocker retrieves the html document from the server.
+ 1. The html is stored as a simple string in the global variable {{{t}}}. It is not stored as a DOM object like browsers do.
+ 1. The transform script is executed. The script should modify the global variable to its liking by e.g. removing all <script> elements.
+ 1. The updated value of the {{{t}}} variable extracted and used for the following steps.
+ 1. Any css/js from the css/js tabs are added.
+ 1. !GlimmerBlocker sends the result to Safari.
+
+== Reference ==
+
+The content is stored in the global {{{t}}} object. See the [wiki:ObjectReference Object Reference] for all the utilities and information that !GlimmerBlocker provides.
+
+
+== Html transformation examples ==
+
+Simple subsitution of contents:
+{{{
+#!js
+t = t.replace(/documentation/, "pure void");
+}}}
+
+A convenience method is provided for this, so the above code can be reduced to:
+{{{
+#!js
+replace(/documentation/, "pure void");
+}}}
+
+Some sites don't provide a desciptive <title> but uses the company name for all pages. This can be fixed by extracting a resonable name from the html body and updating the <title> using the convenience function {{{gb.setDocumentTitle()}}}:
+{{{
+#!js
+var m = t.match(/<h1><span id="item_name">(.+?)<\/span><\/h1>/i);
+if (m)
+        gb.setDocumentTitle(m[1]);
+}}}
+
+Some sites works best without Javascript at all because they do awful things like using Flash™ where a simple <img> would suffice. A simple convenience function fixes this:
+{{{
+#!js
+gb.zapScriptElements();
+}}}
+
+
+Got a good example which would improve this page?  Send it to: [feedback@glimmerblocker.org]
+
+== xml samples ==
+
+Look at the feedburner rule in the 'Site-specific ad removal' filter.