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CHANGELOG.md
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### Version 4.0.0 (2018-01-28) ### - Added: Support for ES2018. The only change needed was recognizing the `s` regex flag. - Changed: _All_ tokens returned by the `matchToToken` function now have a `closed` property. It is set to `undefined` for the tokens where “closed” doesn’t make sense. This means that all tokens objects have the same shape, which might improve performance. These are the breaking changes: - `'/a/s'.match(jsTokens)` no longer returns `['/', 'a', '/', 's']`, but `['/a/s']`. (There are of course other variations of this.) - Code that rely on some token objects not having the `closed` property could now behave differently. ### Version 3.0.2 (2017-06-28) ### - No code changes. Just updates to the readme. ### Version 3.0.1 (2017-01-30) ### - Fixed: ES2015 unicode escapes with more than 6 hex digits are now matched correctly. ### Version 3.0.0 (2017-01-11) ### This release contains one breaking change, that should [improve performance in V8][v8-perf]: > So how can you, as a JavaScript developer, ensure that your RegExps are fast? > If you are not interested in hooking into RegExp internals, make sure that > neither the RegExp instance, nor its prototype is modified in order to get the > best performance: > > ```js > var re = /./g; > re.exec(''); // Fast path. > re.new_property = 'slow'; > ``` This module used to export a single regex, with `.matchToToken` bolted on, just like in the above example. This release changes the exports of the module to avoid this issue. Before: ```js import jsTokens from "js-tokens" // or: var jsTokens = require("js-tokens") var matchToToken = jsTokens.matchToToken ``` After: ```js import jsTokens, {matchToToken} from "js-tokens" // or: var jsTokens = require("js-tokens").default var matchToToken = require("js-tokens").matchToToken ``` [v8-perf]: http://v8project.blogspot.se/2017/01/speeding-up-v8-regular-expressions.html ### Version 2.0.0 (2016-06-19) ### - Added: Support for ES2016. In other words, support for the `**` exponentiation operator. These are the breaking changes: - `'**'.match(jsTokens)` no longer returns `['*', '*']`, but `['**']`. - `'**='.match(jsTokens)` no longer returns `['*', '*=']`, but `['**=']`. ### Version 1.0.3 (2016-03-27) ### - Improved: Made the regex ever so slightly smaller. - Updated: The readme. ### Version 1.0.2 (2015-10-18) ### - Improved: Limited npm package contents for a smaller download. Thanks to @zertosh! ### Version 1.0.1 (2015-06-20) ### - Fixed: Declared an undeclared variable. ### Version 1.0.0 (2015-02-26) ### - Changed: Merged the 'operator' and 'punctuation' types into 'punctuator'. That type is now equivalent to the Punctuator token in the ECMAScript specification. (Backwards-incompatible change.) - Fixed: A `-` followed by a number is now correctly matched as a punctuator followed by a number. It used to be matched as just a number, but there is no such thing as negative number literals. (Possibly backwards-incompatible change.) ### Version 0.4.1 (2015-02-21) ### - Added: Support for the regex `u` flag. ### Version 0.4.0 (2015-02-21) ### - Improved: `jsTokens.matchToToken` performance. - Added: Support for octal and binary number literals. - Added: Support for template strings. ### Version 0.3.1 (2015-01-06) ### - Fixed: Support for unicode spaces. They used to be allowed in names (which is very confusing), and some unicode newlines were wrongly allowed in strings and regexes. ### Version 0.3.0 (2014-12-19) ### - Changed: The `jsTokens.names` array has been replaced with the `jsTokens.matchToToken` function. The capturing groups of `jsTokens` are no longer part of the public API; instead use said function. See this [gist] for an example. (Backwards-incompatible change.) - Changed: The empty string is now considered an “invalid” token, instead an “empty” token (its own group). (Backwards-incompatible change.) - Removed: component support. (Backwards-incompatible change.) [gist]: https://gist.github.com/lydell/be49dbf80c382c473004 ### Version 0.2.0 (2014-06-19) ### - Changed: Match ES6 function arrows (`=>`) as an operator, instead of its own category (“functionArrow”), for simplicity. (Backwards-incompatible change.) - Added: ES6 splats (`...`) are now matched as an operator (instead of three punctuations). (Backwards-incompatible change.) ### Version 0.1.0 (2014-03-08) ### - Initial release.