* Implemented value plucking (e.g. When `grammar = "-" @$[a-z]i* "-"` is given `-PEGjs-`, it returns `PEGjs`)
* [Implemented value plucking](https://github.com/pegjs/pegjs/commit/460f0cc5bc9e7b12e7830a13a9afa5026a5f20f4): e.g. When `grammar = "-" @$[a-z]i* "-"` is given `-PEGjs-`, it returns `PEGjs`
* Upgraded JavaScript support:
- Parser's are generated in ES5
- Source code for PEG.js and scripts in the repository are written in ES2015, for Node 6+
@ -18,8 +18,8 @@
- better explanation about error messages
- added documentation for case-insensitivity in grammar
- added documentation for backtracking in grammar
- clarify details for the execution environment for actions
- added a clear explanation of balanced braces
- clarify details for the execution environment for actions ([#531](https://github.com/pegjs/pegjs/pull/531))
- added a clear explanation of balanced braces ([#533](https://github.com/pegjs/pegjs/pull/533))
- updated documentation for the JavaScript API
- added a guide for plugins
- added documentation for tracer usage
@ -31,15 +31,16 @@
- added aliases for some CLI options; Check them out using `pegjs -h`
- added "bare" to accepted module formats
* Updated the helpers providable to the generated parsers:
- added `offset()` (was removed in a previous release)
- reintroduced `offset()` which was removed in a previous release ([#528](https://github.com/pegjs/pegjs/pull/528))
- added `range()`; returns `[starting offset, current offset]`
- `location()` also returns a `filename` property if one was passed to the generated parser as an option
- `location()` also returns a `filename` property if one was passed to the generated parser as an option ([#421](https://github.com/pegjs/pegjs/issues/421))
- helpers can be disabled via the new `features` option (e.g. `{ text: false }` will remove the `text()` helper)
* Parser returns an instance of the new Grammar class instead of a plain JavaScript object
* Added the ASTVisitor class (usable from either `peg.ast.visitor.ASTVisitor` or `session.visitor.ASTVisitor`)
* Moved all code generation from the `generateBytecode` pass to the `generateJs` pass
* Added the ASTVisitor class ([#451](https://github.com/pegjs/pegjs/issues/451))
* Moved all code generation from the `generateBytecode` pass to the `generateJs` pass ([#459](https://github.com/pegjs/pegjs/pull/459))
* Use `.js` files with the `--extra-options-file` (aliased by `-c` and `--config`) option on CLI
* Added the Session API (`peg.compiler.Session`); this should simplify extending PEG.js using plugins
* Implemented warning and error emitters: `session.warn`, `session.error` and `session.fatal` ([#327](https://github.com/pegjs/pegjs/issues/327), [#430](https://github.com/pegjs/pegjs/issues/430), [#431](https://github.com/pegjs/pegjs/issues/431))
### Minor Changes
@ -49,27 +50,27 @@
- the PEG.js API: `pegjs/typings/api.d.ts`
- the PEG.js modules: `pegjs/typings/modules.d.ts`
* Added `ASTVisitor.on.{property,children}`; these are helper's to create visitor's for use with the new ASTVisitor class
* Merged ast utility functions into the new Grammar class; faster and simpler to use now.
* Pass `options.parser` from `peg.generate` to the PEG.js parser (`peg.parser`, or a custom parser)
* Implemented warning and error emitters (`session.warn`, `session.error` and `session.fatal`)
* Added a pass for the compiler to warn when unused rules are found
* Added a pass for the compiler to warn when unused rules are found ([#200](https://github.com/pegjs/pegjs/issues/200))
* Added a `header` option to the compiler; Adds custom comments to the header of the generated parser
* CLI restores original output file (if it already exists) when parser generation fails
* Added an optional feature to the PEG.js parser to extract comments from grammar if given the option `extractComments`
* Added the option `extractComments` to the PEG.js parser which if _true_ will extract comments from the grammar ([#511](https://github.com/pegjs/pegjs/pull/511))
* Made the default tracer optional (disabled like so `peg.generate(grammar, { features: { DefaultTracer: false } })`)
* Pass variables to generated parsers via the new `context` option (only used when `output: "parser"`)
* Pass variables to generated parsers through the `context` option when `output: "parser"` ([#517](https://github.com/pegjs/pegjs/issues/517))
* On the CLI added the use of `input` and `output` from the _config file_ instead of passing them as arguments
* Updated examples
* Upgraded support for Unicode (from _v8_ to _v11_)
* Do not indent backtick quoted strings in code blocks ([#492](https://github.com/pegjs/pegjs/pull/492))
* Fix shadowing issue for UMD generated parsers ([#499](https://github.com/pegjs/pegjs/issues/499))
* Check rules from `options.allowedStartRules` exist within the grammar ([#524](https://github.com/pegjs/pegjs/issues/524))
@ -77,15 +78,15 @@
### Internal
* Use ESLint to enforce code style
* Switch from Jasmine to Mocha & Chai
* Switch from Jasmine to Mocha & Chai ([#409](https://github.com/pegjs/pegjs/issues/409))
* Removed Makefile (Had switched to Gulp, but removed that as well); Using the _scripts_ field of `package.json` instead
* Rewrote `tools/impact` (a bash script, dependent on external tools) as `test/impact` (a cross-platform Node script)
* Added code coverage ([Istanbul](https://www.npmjs.com/package/nyc) and [coveralls.io](https://coveralls.io/github/pegjs/pegjs))
* Rewrote `tools/impact`; previously a bash script that required external programs, it's now a cross-platform Node script
* Added code coverage via [Istanbul](https://www.npmjs.com/package/nyc) and [coveralls.io](https://coveralls.io/github/pegjs/pegjs) ([#546](https://github.com/pegjs/pegjs/pull/546))
* Updated spec tests
* Switched to Yarn for workspace based development (_NOTE:_ Yarn should not be required for production use)
* Updated keywords for the [NPM package](https://www.npmjs.com/package/pegjs)
* Moved source code for the [website](https://pegjs.org/) into the main repository; the website is updated as repo is updated now
* Added the [spec](https://pegjs.org/spec) and [benchmark](https://pegjs.org/benchmark) tests to the website
* Added the [spec](https://pegjs.org/development/test) and [benchmark](https://pegjs.org/development/benchmark) tests to the website
* Switch from [Browserify](https://github.com/browserify/browserify) to [Rollup](https://rollupjs.org/)
* Auto-import PEG.js version using `require("pegjs/package.json")`, and on dist generation use [rollup-plugin-json](https://www.npmjs.com/package/rollup-plugin-json)
* Added https://pegjs.org/development/try; an editor that uses the latest source files for PEG.js
Futago-za Ryuu
6 years ago