[PATCH 0/6] API for iterating over all messages in a thread

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+From: Austin Clements <amdragon@MIT.EDU>\r
+To: notmuch@notmuchmail.org\r
+Subject: [PATCH 0/6] API for iterating over all messages in a thread\r
+Date: Sat, 24 Nov 2012 23:57:01 -0500\r
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+\r
+This series adds a library API for iterating over all messages in a\r
+thread in sorted order.  This is easy for the library to provide and\r
+difficult to obtain from the current API.  Plus, if you don't count\r
+the code added to the bindings, this series is actually a net\r
+decrease of 4 lines of code because of simplifications it enables.\r
+\r
+Do we want the API to do more?  Currently it's very minimal, but I can\r
+imagine two ways it could be generalized.  It could take an argument\r
+to indicate which message list to return, which could be all messages,\r
+matched messages, top-level messages, or maybe even unmatched messages\r
+(possibly all in terms of message flags).  It could also take an\r
+argument indicating the desired sort order.  Currently, the caller can\r
+use existing message flag APIs to distinguish matched and unmatched\r
+messages and there's a separate function for the top-level messages.\r
+However, if the API could do all of these things, it would subsume\r
+various other API functions, such as notmuch_thread_get_*_date.\r
+\r
+Also, is this the right name for the new API?  In particular, if we do\r
+later want to add a function that returns, say, the list of matched\r
+messages, we'll have a convention collision with\r
+notmuch_thread_get_matched_messages, which returns only a count.\r
+\r