Hi Monks

I have doubt in negative lookahead assertion.

<sec>here the text goes <pg> and text continues

I want to fetch the text from <sec> tag to <pg> tag, but the text fetched should not have <pg> tag. I used the following coding for the above text. is this correct? If not please clarify my doubts.

$str =~ /<sec>.*(?!<pg>)<pg>/si;

Also i need to study the negative and positive look ahead and look behind assertions, where can i find the study material with good examples

Thanks in advance

In reply to negative look ahead by prasadbabu

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
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