From: Dave Hoefler <dhoefler@...>
Date: 2007-02-13T06:36:04+09:00
Subject: What's the best way of parsing this string?

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Hi there,

I have a question about string search and replacement. Let's say I have this
string that contains 2 <object> links for embedding youtube videos amongst
some other random text.

string = "We've got some junk text here" +
         "<object width=\"425\" height=\"350\"><param name=\"movie\"
value=\"http://www.youtube.com/v/qqsyXdj_p_I\"></param>" +
         "<param name=\"wmode\" value=\"transparent\"></param><embed src=\"
http://www.youtube.com/v/qqsyXdj_p_I\"
type=\"application/x-shockwave-flash\"" +
         "wmode=\"transparent\" width=\"425\"
height=\"350\"></embed></object>" +
         "And we've got some more junk text right here" +
         "<object width=\"425\" height=\"350\"><param name=\"movie\"
value=\"http://www.youtube.com/v/yYqACgndOQA\"></param>" +
         "<param name=\"wmode\" value=\"transparent\"></param><embed src=\"
http://www.youtube.com/v/yYqACgndOQA\"
type=\"application/x-shockwave-flash\"" +
         "wmode=\"transparent\" width=\"425\"
height=\"350\"></embed></object>" +
         "more garbage text here"

I'd like to get the value of the 'value' attributes ("
http://www.youtube.com/v/qqsyXdj_p_I" and "
http://www.youtube.com/v/yYqACgndOQA" respectively) and convert the string
into the following:

We've got some junk text here
<div id="youtube_qqsyXdj_p_I"></div>
<script type="text/javascript">
    var so = new SWFObject("http://www.youtube.com/v/qqsyXdj_p_I",
"qqsyXdj_p_I", "425", "350", "6","","","","","");
    so.write("youtube_qqsyXdj_p_I");
</script>
And we've got some more junk text right here
<div id="youtube_yYqACgndOQA"></div>
<script type="text/javascript">
    var so = new SWFObject("http://www.youtube.com/v/yYqACgndOQA",
"yYqACgndOQA", "425", "350", "6","","","","","");
    so.write("youtube_yYqACgndOQA");
</script>
more garbage text here


What would be the best library to use for parsing and replacing certain
values in a string? I've done simple .gsub'ing before, but this seems to be
a little more complicated ;-)

Thanks,
Dave Hoefler

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