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From: Arno Welzel <usenet@arnowelzel.de>
Newsgroups: alt.computer,comp.lang.javascript,sci.electronics.design
Subject: Re: How get windows FIND() to work?
Date: Wed, 5 Aug 2020 07:55:25 +0200
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Robert Baer:

> Arno Welzel wrote:
>> Robert Baer:
>>
>>>     Environment: Win7.1 Firefox 78
>>>
>>>      Sample line used:
>>> <a href="downhole-measurements.html?find=able">Downhole Measurements</a>
>>>
>>>      At least execution transfers from the calling HTML to the desired
>>> destination HTML.
>>>
>>>      BUT. the keyword does NOT get underlined or highlighted in any way.
>>
>> If course not. Why should adding "?find=able" do that?
>>
>> Technically calling "downhole-measurements.html?find=able" will just
>> open the document referred by "downhole-measurements.html" and pass the
>> querystring "find=able" to the server.
>>
>> If the document was opened locally as file and not via HTTP then adding
>> "?find=able" does nothing at all.
>>
>>>      It would be particularly nice if all the keywords got highlighted
>>> and the first keyword was presented on the screen (think loong document
>>> and keyword was in middle).
>>
>> Then you need to build some server side script which reads the document
>> and *adds* elements to highlight the places where the searched text was
>> found. For example if you use PHP on the server the URL could be:
>>
>> find.php?document=downhole-measurements.html&text=able
>>
>> Then the script "find.php" will get the paramters "document" and "text",
>> where "document" tells it which file to read and "text" which text to
>> search for.
>>
>    Sounds like that approach requires me to edit a few thousand FINDs at 
> minimum.
>    What added fuss is required for the document?
> 
>    Also, what does this find.php script look like?

It will open the file, read the content, does a strpos() on the search
term and add <span class="found">...</span> around the found word. You
may also need to add the "found" CSS rule like this:

.found {
  background-color: #ff0;
}

If you want to keep the URL "downhole-measurements.html?find=able" you
can also do this with a script in the document itself which takes the
URL (window.location.href), extracts the "find" parameter and calls
either window.find() or walks the DOM tree to add a <span
class="found">...</span> around the search hits - but in any case you
need *code* to do the finding. There is no solution which just works by
adding something to the URL.

-- 
Arno Welzel
https://arnowelzel.de