5 Commits

Author	SHA1	Message	Date
Julian Yap	a95dbabb34	Fix spelling	2015-12-03 10:49:19 -10:00
Dmitri Hrybenko	313cfcaaa7	Unicode trie generator: add tests for the generator itself that use non-default ... trie parameters and fix a few bugs The bugs did not affect correctness of the particular instance of trie created for grapheme cluster property, because trie parameters that were confused with each other happened to be equal. Also, fix a trie size bug: we were creating a trie large enough to store information for 0x200000 code points, but there are only 0x10ffff. It saved only 15 bytes in the grapheme cluster tree, because that extra information was compressed with some supplementary planes that also had default values. This also improved trie generation time by almost 2x. Swift SVN r19457	2014-07-02 10:29:52 +00:00
Dmitri Hrybenko	d33a09920d	Unicode trie generator: improve comments and function names ... Swift SVN r19398	2014-07-01 13:18:26 +00:00
Dmitri Hrybenko	ff37a42920	Unicode tables: DRY in GraphemeClusterBreakPropertyTable.symbolic_values ... Swift SVN r19397	2014-07-01 13:18:24 +00:00
Dmitri Hrybenko	4814e00fda	stdlib/String: implement Unicode extended grapheme cluster segmentation ... algorithm The implementation uses a specialized trie that has not been tuned to the table data. I tried guessing parameter values that should work well, but did not do any performance measurements. There is no efficient way to initialize arrays with static data in Swift. The required tables are being generated as C++ code in the runtime library. rdar://16013860 Swift SVN r19340	2014-06-30 14:38:53 +00:00