commit 8a4f81c5b30edd4e62d222a17f4e0e2140bfd99d
author Hans Boehm <hboehm@google.com> Thu Jul 09 10:41:25 2015 -0700
committer Hans Boehm <hboehm@google.com> Mon Jul 20 16:30:43 2015 -0700
tree ef2d97689c3e94231222a3ceb88df04c206b2477
parent 22c0a189febb3ee2d0149f6babc3a84e25e3594d

More correctly pronounce advanced operators in Talkback

Bug: 19190211
Bug: 19202945
Bug: 21052751
Bug: 19165054
Bug: 22594908

Add TtsSpans for operators that are otherwise misread by TalkBack.
Force correct reading for some individual characters.

This greatly improves Talkback for advanced operators in Calculator.

This is imperfect. There is no guarantee that the strings I'm
using will work in all languages.  But they're almost certainly better than
what we have now.  And it makes parentheses and factorial usable,
though perhaps a bit verbose.

We also no longer pronounce "sine" as "sin".

Removed some now obsolete TODO comments.

Change-Id: I5236f682be828699e08dca04ee6fa073269964f6