Thread: Regular expressions, Calibre and you- an introduction (Archived)
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Old 11-10-2010, 02:29 AM   #77
bucsie
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Hi

Could you please explain the regular expression used for detecting headers?

Quote:
(?i)(?<=<hr>)((\s*<a name=\d+></a>((<img.+?>)*<br>\s*)?\d+<br>\s*.*?\s*)|(\s*<a name=\d+></a>((<img.+?>)*<br>\s*)?.*?<br>\s*\d+))(?=<br>)
I am not a newbie with regex-es, but it's difficult to follow, and there are a couple of things I don't understand, like what is this for: (?<= or this one: (?=
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