Is there a search engine that will search the html code of web pages,
rather than their actual displayed content?
 
I know about view source, this is not what I want. Also, although
search engines do search html, they don't for example search html
comments. Or I can't search web pages to see which were built in
Fusion. Or if they contain a non-displayed link to a particular
website (eg an image link to amazon).

So I need a search engine that really searches the html code.

I require a method of searchng the code of web apges. Eg if I want to
find a word in a comment that wont show up in the web page but is in
the html code.

What sort of things you really want. If you would like to catch the
some text in others site, then I will recomend you to used some tools.
And many of them are free.

Second, search engine only read html right, but when any one submit
the site, then basis on the key word, crawl search in the internet,
then fetch up some words, and give you the link.

No search engine will read full page and display. imagine then how
many times required to doing so.

I hope this clear your confusion.

Actuall Yahoo indexes up to 800kb of a page. Even if they only indexed
the first 10kb, I still want to search the html code, not the
displayed text, of those 10kb. If you put a comment in the html code,
I want to find it. Yahoo and Google dont let me.

No one search engine indexes the whole content.
The graphics link (indexing) , you describe isn't really possible.
Imagine that search engine indexes trillions of image links (using OCR
algorithm which is very CPU-intensive)

From the user point of view there are no need to index comments
because comments arent the usable infromational content of the site.

If you just trying to search for pages that were built by fusion just
make use of any web site downloader like WebZip(www.spidersoft.com),
Downloader(http://downloader.snowseed.com) to download the entier site
and search for the words using any Multifile opening editor like
Editpad(www.editpadpro.com) and search out.

I can guide you further if you want.