regex help please

thevoiceofcheese · 08-01-2011, 11:33 AM

i just discovered calibre and now i try to work into it, but regular expressions are a obstacle i can't break through until now. i have no clue about programming whatsoever and after hours of trying i give up. i have a huge collection of mainly scientific books, the filenames are in this format: <author> <year> <tiltle>, e.g. "tabachnick 2007 using multivariate statistics.pdf". what i want to do is to extract metadata from filenames. i used this regex: (?P<author>[^_]+) (?P<published>\d\d\d\d) (?P<title>.+). it correctly extracts author and title

, but in the published-field it extracts 2007-07-31

any ideas what is wrong with the regex? thanks in advance!

jackie_w · 08-01-2011, 11:57 AM

I stand to be corrected but I'm not sure anything is wrong. The 'published' field is expecting a valid date. Your filename only contains the 'year' portion so Calibre has created the 'month' and 'day' portions as today's month and day.

DoctorOhh · 08-01-2011, 11:27 PM

If you change the Tweak to display the year only, you would only see 2007. It works for me, YMMV.

# Control how dates are displayed

gui_pubdate_display_format = 'yyyy'

08-01-2011, 11:33 AM	#1
thevoiceofcheese Junior Member Posts: 1 Karma: 10 Join Date: Aug 2011 Device: none	regex help please i just discovered calibre and now i try to work into it, but regular expressions are a obstacle i can't break through until now. i have no clue about programming whatsoever and after hours of trying i give up. i have a huge collection of mainly scientific books, the filenames are in this format: <author> <year> <tiltle>, e.g. "tabachnick 2007 using multivariate statistics.pdf". what i want to do is to extract metadata from filenames. i used this regex: (?P<author>[^_]+) (?P<published>\d\d\d\d) (?P<title>.+). it correctly extracts author and title , but in the published-field it extracts 2007-07-31 any ideas what is wrong with the regex? thanks in advance!

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08-01-2011, 11:57 AM	#2
jackie_w Grand Sorcerer Posts: 6,208 Karma: 16534692 Join Date: Sep 2009 Location: UK Device: Kobo: KA1, ClaraHD, Forma, Libra2, Clara2E. PocketBook: TouchHD3	I stand to be corrected but I'm not sure anything is wrong. The 'published' field is expecting a valid date. Your filename only contains the 'year' portion so Calibre has created the 'month' and 'day' portions as today's month and day.

08-01-2011, 11:27 PM	#3
DoctorOhh US Navy, Retired Posts: 9,864 Karma: 13806776 Join Date: Feb 2009 Location: North Carolina Device: Icarus Illumina XL HD, Nexus 7	If you change the Tweak to display the year only, you would only see 2007. It works for me, YMMV. # Control how dates are displayed gui_pubdate_display_format = 'yyyy'

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