Workaround for Chrome bug https://code.google.com/p/chromium/issues/detail?id=269679 : switch statement I added in isspace to make it faster seemed to cause the whole function to be optimized away. Replace with simple range checks in conditional expression.
Merge pull request #1479 from j4m3z0r/fast_isspace

Workaround for Chrome bug https://code.google.com/p/chromium/issues/deta...