Date: Sat, 11 Feb 2017 18:59:38 -0500 From: Rich Felker <dalias@...c.org> To: musl@...ts.openwall.com Subject: Re: Re: a bug in bindtextdomain() and strip '.UTF-8' On Sat, Feb 11, 2017 at 02:00:56PM +0800, He X wrote: > fresh patch :) > 1. It's easier that just stopping at dot, and i think this should be > commented in the wiki or somewhere. > 2. I read your first part of reply for 20mins, but im not sure; If i > understand right, you mean, let the __locale_map* and strcut binding* be > the id-card for msgcat list instead of the long name string, not only > faster, but also more easy to construct pathname string. Yes. The values needed for the "id-card" (key) for the lookup are: 1. loc->cat[category] 2. category 3. The struct binding * active for domainname; gettextdir should be replaced with a function to lookup the binding rather than just returning the dir name. These three pointer/integer values uniquely determine the pathname(s) to try, and thus the mapped translation file to use. > But there's some > questions: > + I removed name from msgcat, i can't find its use there, is it safe? I think that's fine. > + gettextdir() is replaced by a new loop, since i need the pointer of > struct binding not only the dirname, but then, gettextdir() is only called > by bindtextdomain(), is there a need to keep it? Or we have a better way to > get the pointer of struct binding? It could be replaced with a function calle getdomainbinding that returns the struct binding * for the domain argument. Then the caller can use the returned pointer to lookup an existing mapped msgcat, or read out the ->dirname member if it needs to construct a path to map a new one. > + you said msgcat's indexed by ( struct __locale_map *, struct binding *, > category ), but i found lm(locale_map) is located by category, so if > category is different, then we can't get the same lm, so we can just > compare lm, right? If LC_TIME and LC_MESSAGES are both the same locale, then loc->cat[LC_TIME] and loc->cat[LC_MESSAGES] will both be the same pointer. Thus category also needs to be kept for the lookup (and path expansion). Does this help? I'll review the patch code separately. Rich
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