Match e-mail addresses not contained in HTML tag
I need to highlight an email addresses in text but not highlight them if contained in HTML tags, content, or attributes.
For example, the string example@example.com
must be converted to <a href="mailto:example@example.com">example@example.com</a>
开发者_Python百科
But email addresses in the string <a href="mailto:example@example.com">example@example.com</a>
must not be processed.
I've tried something like this regexp:
(?<![":])[a-zA-Z0-9._%-+]+@[a-zA-Z0-9._%-]+.[a-zA-Z]{2,6}(?!")
but it doesn't work properly.
I'll guessing that your source text is an HTML file which is missing anchor tags for only some of the contained e-mail addresses. If this is true, then you will not be able to use a regexp to reliably match only untagged e-mail addresses. For example, given the input:
...
<P>You'll find a lot more written by <A
href="mailto:SvartaIF@example.com"
title="some text including an@sign.org">
SvartaIF@example.com
</A>.
</P>
...
it becomes impossible to lexically associate the href
with the address and also exclude an@sign.org
. You need to use an HTML parser; BeautifulSoup is pretty popular.
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