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chaley · 06-25-2011, 04:42 AM

This got complicated. Two problems:

1) must check each author in the author_sort, but that means a complicated regexp that checks for ampersands. Didn't need to do this for authors.
2) must build a character class to handle letter equivalences in some languages.

For an example or the second problem, in some locales the letters S and Š are to sort as equivalent letters. The search must find either letter whether it is a first or later author (later authors are identified by the & character). The regex that calibre now generates to do that is

Code:

author_sort:"~(^[ŠS])|(&\\s*[ŠS])"

Code changes submitted.

06-25-2011, 04:42 AM	#3
chaley Grand Sorcerer Posts: 12,449 Karma: 8012886 Join Date: Jan 2010 Location: Notts, England Device: Kobo Libra 2	This got complicated. Two problems: 1) must check each author in the author_sort, but that means a complicated regexp that checks for ampersands. Didn't need to do this for authors. 2) must build a character class to handle letter equivalences in some languages. For an example or the second problem, in some locales the letters S and Š are to sort as equivalent letters. The search must find either letter whether it is a first or later author (later authors are identified by the & character). The regex that calibre now generates to do that is Code: author_sort:"~(^[ŠS])\|(&\\s*[ŠS])" Code changes submitted.