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* lib: Rename iterator functions to prepare for reverse iteration.Carl Worth2010-03-09
| | | | | | | | We rename 'has_more' to 'valid' so that it can function whether iterating in a forward or reverse direction. We also rename 'advance' to 'move_to_next' to setup parallel naming with the proposed functions 'move_to_first', 'move_to_last', and 'move_to_previous'.
* notmuch_tags_advance: Make safe against excessive calls.Carl Worth2009-11-14
| | | | | | Previously, an excess call would have caused a crash. Now it simply does nothing. Also, make notmuch_tags_get use a similar, consistent early return for a NULL iterator.
* libify: Move library sources down into lib directory.Carl Worth2009-11-09
A "make" invocation still works from the top-level, but not from down inside the lib directory yet.