Why don't you do something like this:

<servimg:name.jpg:This is the alt text Buddy>

Then search for a regx something like <servimg*>  (I am not sure of the 
exact syntax).
Then parse the found tag, generate your <img tag and replace the original 
tag with the generated tag.

I hope it gives you some good ideas.

-Jason Garber

At 12:11 PM 10/18/2001 -0400, John A. Grant wrote:
>I'm reading some HTML text from a file and echoing it to
>stdout. The HTML text contains <IMG> but I would rather
>have the server do the work of looking up the image size.
>I know how to lookup the image size with getimagesize().
>My problem is in coming up with a good format for embedding
>a reference to the image in the text and then writing the code
>to parse it.
>So instead of this:
>     here is some text <img src=bird.gif width=100 height=20
>     alt="this is a bird"> and here is more text and another
>     image <img src=plane.gif width=123 height=23
>     alt="this is a plane"> and more text
>I would like to have something like this:
>     here is some text [bird.gif,this is a bird] and here
>     is more text and another image [plane.gif, this is a plane]
>     and more text
>Crossing line boundaries is not an issue - each text string
>is complete. I need to be able to dump out the string until I
>see a reference to an image, then extract the name and alt text,
>handle it (by emitting <IMG>) and continue to echo text from
>the string until I encounter another image reference.
>My problem is in coming up with a syntax for this and then
>to write the code to extract the information.
>In the above example, I'm using the syntax:
>     [filename,text]
>but it's conceivable that the HTML text might also contain
>     [some plain text not related to images]
>so I thought about some of these:
>     {filename,alt text} - not good, text might contain {plain text]
>     @filename, alt text@
>     img(filename,alt text)
>Using the same @ delimiter at each end might make it easier
>to use explode() to split the text.  But perhaps img(filename,text)
>is more elegant, but it might need more skills than I have in using
>regex to recognize it and extract it.  Also I need to figure out how
>to extract and echo the plain text around it.
>Any ideas are appreciated. Thanks.
>John A. Grant  * I speak only for myself *  (remove 'z' to reply)
>Radiation Geophysics, Geological Survey of Canada, Ottawa
>If you followup, please do NOT e-mail me a copy: I will read it here
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