More on XMP Extraction

Dan Lyke wrote about the Perl regular expression for extracting XMP from Adobe files:

In the XML extractor, try replacing the grouping for $3, currently “(.*)”, with “(.*?)”. “*” and “+” are default greedy, so the rest of the match will match the last occurrence of that in the document. The “?” makes them non-greedy. Almost always people mean “.*?” rather than “.*”.

So that expression becomes:


m/id='W5M0MpCehiHzreSzNTczkc9d'\s* \

(bytes=')*([^']*)'?\?> \

(.*?)<\?xpacket end='([^']*)'\?>/sg

Note that I split the expression across three lines.

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This entry was written by Bill Humphries and posted on November 20, 2002 at 12:00 am and filed under Uncategorized. Bookmark the permalink. Follow any comments here with the Atom feed for this post. Both comments and trackbacks are currently closed.