All notable changes to this project will be documented in this file.

The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).

## [0.7.4] - 2019-05-04
- Npm audit fix

## [0.7.3] - 2019-05-04
- Fix token order issue
- Fix EOF not returned unless trailing whitespace is present in the input.

## [0.7.2] - 2018-10-08
- Npm audit fix

## [0.7.1] - 2018-01-03
- Move token pop to top of scan method. Simplify scan while statment.
- Improve multiple token spec to check token order.

## [0.7.0] - 2018-01-03
- Allow EOF token to be nulled.

## [0.6.5] - 2018-01-03
- Add tests for non-numeric and n < 1 rule function return types.
- Documentation updates.

## [0.6.4] - 2018-01-03
- Add build badge to readme.

## [0.6.3] - 2018-01-03
- Add tests and improve code coverage

## [0.6.2] - 2018-01-03
- Add no-arguments constructor test.
- Remove _destroy method and call.
- Test 'done' against cursor only.

## [0.6.1] - 2018-01-03
- Add unit tests.

## [0.6.0] - 2018-01-03
- Change onToken function behavior so that if it doesn't return a token no token is returned from lex.

## [0.5.0] - 2018-01-03
- Change error options to multiple choice (throw, tokenize, ignore).
- Restructure error handling code.
- Call rule functions with 'this' as context.
- Constructor doesn't throw when rules is not an array.

## [0.4.1] - 2018-01-02
- The returned token may be a string in addition to a token tuple.

## [0.4.0] - 2018-01-02
- TinyLex is on 'window' when script is loaded browser style.
- Throw 'lexer is exhausted' when lex() is called on a spent lexer.

## [0.3.0] - 2018-01-02
- Make onToken a function instead of a property setter.
- Return this in onToken.
- Clear _onToken member on destroy.
- Pass the last match to onToken function.
- Allow onToken to modify or replace the token.

## [0.2.6] - 2018-01-02
- Add onToken callback functionality.

## [0.2.5] - 2018-01-02
- Make class member variables private.
- Fix RuleFn argument types.

## [0.2.4] - 2018-01-02
- Remove redundant tokens list check in _scan method.
- Fix type annotation on option member.
- Protect rule function return value by assuring it's a positive whole number greater than zero.

## [0.2.3] - 2018-01-02
- Single character fallback tokens are converted to upper case.
- Allow empty rulesets.
- Type annotation fixes

## [0.2.2] - 2018-01-02
- Documentation formatting fix

## [0.2.1] - 2018-01-02
- Documentation and example updates

## [0.2.0] - 2018-01-02
- Add options and 'throwOnMismatch' option
- Add better lex error reporting
- Null out member variables when lexer is consumed
- Fix last token undefined issue.
- Restructure 'lex' to call scan in a loop and return 'EOF' as the last token.
- Generate source maps
- Null check match[1] in string specifier
- Return false from _handleMatches if tokens list is empty

## [0.1.0] - 2018-01-01
Initial version