rust/validation.md

Fixmes:

* Fix `is_whitespace`, add more tests
* Add more thorough tests for idents for XID_Start & XID_Continue
* Validate that float and integer literals use digits only of the appropriate
  base, and are in range
Cleanup character classes 2017-12-30 00:48:47 +03:00			`Fixmes:`

Lexer: start numbers 2017-12-30 15:22:40 +03:00			* Fix `is_whitespace`, add more tests
Lexer: underscore 2017-12-30 01:01:57 +03:00			`* Add more thorough tests for idents for XID_Start & XID_Continue`
Lexer: start numbers 2017-12-30 15:22:40 +03:00			`* Validate that float and integer literals use digits only of the appropriate`
			`base, and are in range`
Cleanup character classes 2017-12-30 00:48:47 +03:00