Add Books - regular expression required

[Boats95]

I apologize if this has been answered before, but I've searched and not found or understood the answer.

I wish to add books to calibre that are in the following format,

Lucky Shot (Joshua James).txt

but I am unable to separate title and author.

Regards

Mike

[kacir]

(?P<title>.+) [(](?P<author>[^)]+)[)]

There are much more elaborate Regular Expressions, but this one does what you need and is simple enough to read.

Since the parenthesis is used to enclose fields like (?P<title>.+) or other groups of characters in Regular Expression I choose to "escape" the parenthesis used in filename as an author delimiter by creating character class [(] and [)]. I think you could also "escape" parenthesis by a slash like \( and \). Generally [(] is safer choice, because some programs with Regular Expressions use naked parenthesis for grouping, other escaped ones.

Here is one of more elaborate examples that would process file with name. Every time I found a file name it couldn't process I tried to refine it:
Author [(- Series #)] - Title
Series is either in [] parenthesis or ()

^(?P<author>((?!\s-\s).)+)\s-\s(?:(?:[[(]\s*)?(?P<series>.+)\s(?P<series_index>[\d\.]+)(?:\s*[])])?\s-\s)?(?P<title>[^(]+)(?:\(.*\))?

Do not worry, I wrote it, but now, after several years it is very difficult for me to read it without analysis and formatting to several lines ;-)

[Boats95]

Thank you very much Kacir, much appreciated.

Regards

Mike

[Thalia Helikon]

Originally Posted by kacir

(?P<title>.+) [(](?P<author>[^)]+)[)]

Here is one of more elaborate examples that would process file with name. Every time I found a file name it couldn't process I tried to refine it:
Author [(- Series #)] - Title
Series is either in [] parenthesis or ()

^(?P<author>((?!\s-\s).)+)\s-\s(?:(?:[[(]\s*)?(?P<series>.+)\s(?P<series_index>[\d\.]+)(?:\s*[])])?\s-\s)?(?P<title>[^(]+)(?:\(.*\))?

Do not worry, I wrote it, but now, after several years it is very difficult for me to read it without analysis and formatting to several lines ;-)

this worked beautifully for me!