|
|
|
|
0.8.0
|
|
|
|
|
-----
|
|
|
|
|
|
|
|
|
|
Released: December 24, 2013
|
|
|
|
|
|
|
|
|
|
### Big Changes
|
|
|
|
|
|
|
|
|
|
* Completely rewrote the code generator. Among other things, it allows
|
|
|
|
|
optimizing generated parsers for parsing speed or code size using the
|
|
|
|
|
`optimize` option of the `PEG.buildParser` method or the `--optimize`/`-o`
|
|
|
|
|
option on the command-line. All internal identifiers in generated code now
|
|
|
|
|
also have a `peg$` prefix to discourage their use and avoid conflicts.
|
|
|
|
|
[[#35](https://github.com/dmajda/pegjs/issues/35),
|
|
|
|
|
[#92](https://github.com/dmajda/pegjs/issues/92)]
|
|
|
|
|
|
|
|
|
|
* Completely redesigned error handling. Instead of returning `null` inside
|
|
|
|
|
actions to indicate match failure, new `expected` and `error` functions can
|
|
|
|
|
be called to trigger an error. Also, expectation inside the `SyntaxError`
|
|
|
|
|
exceptions are now structured to allow easier machine processing.
|
|
|
|
|
[[#198](https://github.com/dmajda/pegjs/issues/198)]
|
|
|
|
|
|
|
|
|
|
* Implemented a plugin API. The list of plugins to use can be specified using
|
|
|
|
|
the `plugins` option of the `PEG.buildParser` method or the `--plugin`
|
|
|
|
|
option on the command-line. Also implemented the `--extra-options` and
|
|
|
|
|
`--extra-options-file` command-line options, which are mainly useful to pass
|
|
|
|
|
additional options to plugins.
|
|
|
|
|
[[#106](https://github.com/dmajda/pegjs/issues/106)]
|
|
|
|
|
|
|
|
|
|
* Made `offset`, `line` and `column` functions, not variables. They are now
|
|
|
|
|
available in all parsers and return lazily-computed position data. Removed
|
|
|
|
|
now useless `trackLineAndColumn` option of the `PEG.buildParser` method and
|
|
|
|
|
the `--track-line-and-column` option on the command-line.
|
|
|
|
|
|
|
|
|
|
* Added a new `text` function. When called inside an action, it returns the
|
|
|
|
|
text matched by action's expression.
|
|
|
|
|
[[#131](https://github.com/dmajda/pegjs/issues/131)]
|
|
|
|
|
|
|
|
|
|
* Added a new `$` operator. It extracts matched strings from expressions.
|
|
|
|
|
|
|
|
|
|
* The `?` operator now returns `null` on unsuccessful match.
|
|
|
|
|
|
|
|
|
|
* Predicates now always return `undefined`.
|
|
|
|
|
|
|
|
|
|
* Replaced the `startRule` parameter of the `parse` method in generated
|
|
|
|
|
parsers with more generic `options` parameter. The start rule can now be
|
|
|
|
|
specified as the `startRule` option. The `options` parameter can be also
|
|
|
|
|
used to pass custom options to the parser because it is visible as the
|
|
|
|
|
`options` variable inside parser code.
|
|
|
|
|
[[#37](https://github.com/dmajda/pegjs/issues/37)]
|
|
|
|
|
|
|
|
|
|
* The list of allowed start rules of a generated parser now has to be
|
|
|
|
|
specified explicitly using the `allowedStartRules` option of the
|
|
|
|
|
`PEG.buildParser` method or the `--allowed-start-rule` option on the
|
|
|
|
|
command-line. This will make certain optimizations like rule inlining easier
|
|
|
|
|
in the future.
|
|
|
|
|
|
|
|
|
|
* Removed the `toSource` method of generated parsers and introduced a new
|
|
|
|
|
`output` option of the `PEG.buildParser` method. It allows callers to
|
|
|
|
|
specify whether they want to get back the parser object or its source code.
|
|
|
|
|
|
|
|
|
|
* The source code is now a valid npm package. This makes using development
|
|
|
|
|
versions easier.
|
|
|
|
|
[[#32](https://github.com/dmajda/pegjs/issues/32)]
|
|
|
|
|
|
|
|
|
|
* Generated parsers are now ~25% faster and ~62%/~3% smaller (when optimized
|
|
|
|
|
for size/speed) than those generated by 0.7.0.
|
|
|
|
|
|
|
|
|
|
* Requires Node.js 0.8.0+.
|
|
|
|
|
|
|
|
|
|
### Small Changes
|
|
|
|
|
|
|
|
|
|
* `bin/pegjs` now outputs just the parser source if the value of the
|
|
|
|
|
`--export-var` option is empty. This makes embedding generated parsers into
|
|
|
|
|
other files easier.
|
|
|
|
|
[[#143](https://github.com/dmajda/pegjs/issues/143)]
|
|
|
|
|
|
|
|
|
|
* Changed the value of the `name` property of `PEG.GrammarError` instances
|
|
|
|
|
from “PEG.GrammarError” to just “GrammarError”. This better reflects the
|
|
|
|
|
fact that PEG.js can get required with different variable name than `PEG`.
|
|
|
|
|
|
|
|
|
|
* Setup prototype chain for `PEG.GrammarError` correctly.
|
|
|
|
|
|
|
|
|
|
* Setup prototype chain for `SyntaxError` in generated parsers correctly.
|
|
|
|
|
|
|
|
|
|
* Fixed error messages in certain cases with trailing input
|
|
|
|
|
[[#119](https://github.com/dmajda/pegjs/issues/119)]
|
|
|
|
|
|
|
|
|
|
* Fixed code generated for classes starting with `\^`.
|
|
|
|
|
[[#125](https://github.com/dmajda/pegjs/issues/125)]
|
|
|
|
|
|
|
|
|
|
* Fixed too eager proxy rules removal.
|
|
|
|
|
[[#137](https://github.com/dmajda/pegjs/issues/137)]
|
|
|
|
|
|
|
|
|
|
* Added a license to all vendored libraries.
|
|
|
|
|
[[#207](https://github.com/dmajda/pegjs/issues/207)]
|
|
|
|
|
|
|
|
|
|
* Converted the test suite from QUnit to Jasmine, cleaning it up on the way.
|
|
|
|
|
|
|
|
|
|
* Travis CI integration.
|
|
|
|
|
|
|
|
|
|
* Various internal code improvements and fixes.
|
|
|
|
|
|
|
|
|
|
* Various generated code improvements and fixes.
|
|
|
|
|
|
|
|
|
|
* Various example grammar improvements and fixes.
|
|
|
|
|
|
|
|
|
|
* Improved `README.md`.
|
|
|
|
|
|
|
|
|
|
* Converted `CHANGELOG` to Markdown.
|
|
|
|
|
|
|
|
|
|
0.7.0
|
|
|
|
|
-----
|
|
|
|
|
|
|
|
|
|
Released: April 18, 2012
|
|
|
|
|
|
|
|
|
|
### Big Changes
|
|
|
|
|
|
|
|
|
|
* Added ability to pass options to `PEG.buildParser`.
|
|
|
|
|
|
|
|
|
|
* Implemented the `trackLineAndColumn` option for `PEG.buildParser` (together
|
|
|
|
|
with the `--track-line-and-column` command-line option). It makes the
|
|
|
|
|
generated parser track line and column during parsing. These are made
|
|
|
|
|
available inside actions and predicates as `line` and `column` variables.
|
|
|
|
|
|
|
|
|
|
* Implemented the `cache` option for `PEG.buildParser` (together with the
|
|
|
|
|
`--cache` command-line option). This option enables/disables the results
|
|
|
|
|
cache in generated parsers, resulting in dramatic speedup when the cache is
|
|
|
|
|
disabled (the default now). The cost is breaking the linear parsing time
|
|
|
|
|
guarantee.
|
|
|
|
|
|
|
|
|
|
* The current parse position is visible inside actions and predicates as the
|
|
|
|
|
`offset` variable.
|
|
|
|
|
|
|
|
|
|
* Exceptions thrown by the parser have `offset`, `expected` and `found`
|
|
|
|
|
properties containing machine-readable information about the parse failure
|
|
|
|
|
(based on a patch by Marcin Stefaniuk).
|
|
|
|
|
|
|
|
|
|
* Semantic predicates have access to preceding labels.
|
|
|
|
|
[[GH-69](https://github.com/dmajda/pegjs/issues/69)]
|
|
|
|
|
|
|
|
|
|
* Implemented case-insensitive literal and class matching.
|
|
|
|
|
[[GH-34](https://github.com/dmajda/pegjs/issues/34)]
|
|
|
|
|
|
|
|
|
|
* Rewrote the code generator — split some computations into separate passes
|
|
|
|
|
and based it on a proper templating system (Codie).
|
|
|
|
|
|
|
|
|
|
* Rewrote variable handling in generated parsers in a stack-like fashion,
|
|
|
|
|
simplifying the code and making the parsers smaller and faster.
|
|
|
|
|
|
|
|
|
|
* Adapted to Node.js 0.6.6+ (no longer supported in older versions).
|
|
|
|
|
|
|
|
|
|
* Dropped support for IE < 8.
|
|
|
|
|
|
|
|
|
|
* As a result of several optimizations, parsers generated by 0.7.0 are ~6.4
|
|
|
|
|
times faster and ~19% smaller than those generated by 0.6.2 (as reported by
|
|
|
|
|
`/tools/impact`).
|
|
|
|
|
|
|
|
|
|
### Small Changes
|
|
|
|
|
|
|
|
|
|
* Fixed reported error position when part of the input is not consumed.
|
|
|
|
|
[[GH-48](https://github.com/dmajda/pegjs/issues/48)]
|
|
|
|
|
|
|
|
|
|
* Fixed incorrect disjunction operator in `computeErrorPosition` (original
|
|
|
|
|
patch by Wolfgang Kluge).
|
|
|
|
|
|
|
|
|
|
* Fixed regexp for detecting command-line options in `/bin/pegjs`.
|
|
|
|
|
[[GH-51](https://github.com/dmajda/pegjs/issues/51)]
|
|
|
|
|
|
|
|
|
|
* Generate more efficient code for empty literals (original patch by Wolfgang
|
|
|
|
|
Kluge).
|
|
|
|
|
|
|
|
|
|
* Fixed comment typos (patches by Wolfgang Kluge and Jason Davies).
|
|
|
|
|
[[GH-59](https://github.com/dmajda/pegjs/issues/59)]
|
|
|
|
|
|
|
|
|
|
* Fixed a typo in JavaScript example grammar.
|
|
|
|
|
[[GH-62](https://github.com/dmajda/pegjs/issues/62)]
|
|
|
|
|
|
|
|
|
|
* Made copy & paste inclusion of the PEG.js library into another code easier
|
|
|
|
|
by changing how the library is exported.
|
|
|
|
|
|
|
|
|
|
* Improved the copyright comment and the “Generated by...” header.
|
|
|
|
|
|
|
|
|
|
* Replaced `Jakefile` with `Makefile`.
|
|
|
|
|
|
|
|
|
|
* Added `make hint` task that checks all JavaScript files using JSHint and
|
|
|
|
|
resolved all issues it reported. All JavaScript files and also generated
|
|
|
|
|
parsers are JSHint-clean now.
|
|
|
|
|
|
|
|
|
|
* Fixed output printed during test failures (expected value was being printed
|
|
|
|
|
instead of the actual one). Original patch by Wolfgang Kluge.
|
|
|
|
|
|
|
|
|
|
* Added a `/tools/impact` script to measure speed and size impact of commits.
|
|
|
|
|
|
|
|
|
|
* Various generated code improvements and fixes.
|
|
|
|
|
|
|
|
|
|
* Various internal code improvements and fixes.
|
|
|
|
|
|
|
|
|
|
* Improved `README.md`.
|
|
|
|
|
|
|
|
|
|
0.6.2
|
|
|
|
|
-----
|
|
|
|
|
|
|
|
|
|
Released: August 20, 2011
|
|
|
|
|
|
|
|
|
|
### Small Changes
|
|
|
|
|
|
|
|
|
|
* Reset parser position when action returns `null`.
|
|
|
|
|
|
|
|
|
|
* Fixed typo in JavaScript example grammar.
|
|
|
|
|
|
|
|
|
|
0.6.1
|
|
|
|
|
-----
|
|
|
|
|
|
|
|
|
|
Released: April 14, 2011
|
|
|
|
|
|
|
|
|
|
### Small Changes
|
|
|
|
|
|
|
|
|
|
* Use `--ascii` option when generating a minified version.
|
|
|
|
|
|
|
|
|
|
0.6.0
|
|
|
|
|
-----
|
|
|
|
|
|
|
|
|
|
Released: April 14, 2011
|
|
|
|
|
|
|
|
|
|
### Big Changes
|
|
|
|
|
|
|
|
|
|
* Rewrote the command-line mode to be based on Node.js instead of Rhino — no
|
|
|
|
|
more Java dependency. This also means that PEG.js is available as a Node.js
|
|
|
|
|
package and can be required as a module.
|
|
|
|
|
|
|
|
|
|
* Version for the browser is built separately from the command-line one in two
|
|
|
|
|
flavors (normal and minified).
|
|
|
|
|
|
|
|
|
|
* Parser variable name is no longer required argument of `bin/pegjs` — it is
|
|
|
|
|
`module.exports` by default and can be set using the `-e`/`--export-var`
|
|
|
|
|
option. This makes parsers generated by `/bin/pegjs` Node.js modules by
|
|
|
|
|
default.
|
|
|
|
|
|
|
|
|
|
* Added ability to start parsing from any grammar rule.
|
|
|
|
|
|
|
|
|
|
* Added several compiler optimizations — 0.6 is ~12% faster than 0.5.1 in the
|
|
|
|
|
benchmark on V8.
|
|
|
|
|
|
|
|
|
|
### Small Changes
|
|
|
|
|
|
|
|
|
|
* Split the source code into multiple files combined together using a build
|
|
|
|
|
system.
|
|
|
|
|
|
|
|
|
|
* Jake is now used instead of Rake for build scripts — no more Ruby
|
|
|
|
|
dependency.
|
|
|
|
|
|
|
|
|
|
* Test suite can be run from the command-line.
|
|
|
|
|
|
|
|
|
|
* Benchmark suite can be run from the command-line.
|
|
|
|
|
|
|
|
|
|
* Benchmark browser runner improvements (users can specify number of runs,
|
|
|
|
|
benchmarks are run using `setTimeout`, table is centered and fixed-width).
|
|
|
|
|
|
|
|
|
|
* Added PEG.js version to “Generated by...” line in generated parsers.
|
|
|
|
|
|
|
|
|
|
* Added PEG.js version information and homepage header to `peg.js`.
|
|
|
|
|
|
|
|
|
|
* Generated code improvements and fixes.
|
|
|
|
|
|
|
|
|
|
* Internal code improvements and fixes.
|
|
|
|
|
|
|
|
|
|
* Rewrote `README.md`.
|
|
|
|
|
|
|
|
|
|
0.5.1
|
|
|
|
|
-----
|
|
|
|
|
|
|
|
|
|
Released: November 28, 2010
|
|
|
|
|
|
|
|
|
|
### Small Changes
|
|
|
|
|
|
|
|
|
|
* Fixed a problem where “SyntaxError: Invalid range in character class.” error
|
|
|
|
|
appeared when using command-line version on Widnows
|
|
|
|
|
([GH-13](https://github.com/dmajda/pegjs/issues/13)).
|
|
|
|
|
|
|
|
|
|
* Fixed wrong version reported by `bin/pegjs --version`.
|
|
|
|
|
|
|
|
|
|
* Removed two unused variables in the code.
|
|
|
|
|
|
|
|
|
|
* Fixed incorrect variable name on two places.
|
|
|
|
|
|
|
|
|
|
0.5
|
|
|
|
|
---
|
|
|
|
|
|
|
|
|
|
Released: June 10, 2010
|
|
|
|
|
|
|
|
|
|
### Big Changes
|
|
|
|
|
|
|
|
|
|
* Syntax change: Use labeled expressions and variables instead of `$1`, `$2`,
|
|
|
|
|
etc.
|
|
|
|
|
|
|
|
|
|
* Syntax change: Replaced `:` after a rule name with `=`.
|
|
|
|
|
|
|
|
|
|
* Syntax change: Allow trailing semicolon (`;`) for rules
|
|
|
|
|
|
|
|
|
|
* Semantic change: Start rule of the grammar is now implicitly its first rule.
|
|
|
|
|
|
|
|
|
|
* Implemented semantic predicates.
|
|
|
|
|
|
|
|
|
|
* Implemented initializers.
|
|
|
|
|
|
|
|
|
|
* Removed ability to change the start rule when generating the parser.
|
|
|
|
|
|
|
|
|
|
* Added several compiler optimizations — 0.5 is ~11% faster than 0.4 in the
|
|
|
|
|
benchmark on V8.
|
|
|
|
|
|
|
|
|
|
### Small Changes
|
|
|
|
|
|
|
|
|
|
* `PEG.buildParser` now accepts grammars only in string format.
|
|
|
|
|
|
|
|
|
|
* Added “Generated by ...” message to the generated parsers.
|
|
|
|
|
|
|
|
|
|
* Formatted all grammars more consistently and transparently.
|
|
|
|
|
|
|
|
|
|
* Added notes about ECMA-262, 5th ed. compatibility to the JSON example
|
|
|
|
|
grammar.
|
|
|
|
|
|
|
|
|
|
* Guarded against redefinition of `undefined`.
|
|
|
|
|
|
|
|
|
|
* Made `bin/pegjs` work when called via a symlink
|
|
|
|
|
([issue #1](https://github.com/dmajda/pegjs/issues/1)).
|
|
|
|
|
|
|
|
|
|
* Fixed bug causing incorrect error messages
|
|
|
|
|
([issue #2](https://github.com/dmajda/pegjs/issues/2)).
|
|
|
|
|
|
|
|
|
|
* Fixed error message for invalid character range.
|
|
|
|
|
|
|
|
|
|
* Fixed string literal parsing in the JavaScript grammar.
|
|
|
|
|
|
|
|
|
|
* Generated code improvements and fixes.
|
|
|
|
|
|
|
|
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|
* Internal code improvements and fixes.
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* Improved `README.md`.
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0.4
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---
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Released: April 17, 2010
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### Big Changes
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* Improved IE compatibility — IE6+ is now fully supported.
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* Generated parsers are now standalone (no runtime is required).
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* Added example grammars for JavaScript, CSS and JSON.
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* Added a benchmark suite.
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* Implemented negative character classes (e.g. `[^a-z]`).
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* Project moved from BitBucket to GitHub.
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### Small Changes
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* Code generated for the character classes is now regexp-based (= simpler and
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more scalable).
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* Added `\uFEFF` (BOM) to the definition of whitespace in the metagrammar.
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* When building a parser, left-recursive rules (both direct and indirect) are
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reported as errors.
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* When building a parser, missing rules are reported as errors.
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* Expected items in the error messages do not contain duplicates and they are
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sorted.
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* Fixed several bugs in the example arithmetics grammar.
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* Converted `README` to GitHub Flavored Markdown and improved it.
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* Added `CHANGELOG`.
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* Internal code improvements.
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0.3
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---
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Released: March 14, 2010
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* Wrote `README`.
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* Bootstrapped the grammar parser.
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* Metagrammar recognizes JavaScript-like comments.
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* Changed standard grammar extension from `.peg` to `.pegjs` (it is more
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specific).
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* Simplified the example arithmetics grammar + added comment.
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* Fixed a bug with reporting of invalid ranges such as `[b-a]` in the
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metagrammar.
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* Fixed `--start` vs. `--start-rule` inconsistency between help and actual
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option processing code.
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* Avoided ugliness in QUnit output.
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* Fixed typo in help: `parserVar` → `parser_var`.
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* Internal code improvements.
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0.2.1
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-----
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Released: March 8, 2010
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* Added `pegjs-` prefix to the name of the minified runtime file.
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0.2
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---
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Released: March 8, 2010
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* Added `Rakefile` that builds minified runtime using Google Closure Compiler
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API.
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* Removed trailing commas in object initializers (Google Closure does not like
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them).
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0.1
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---
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Released: March 8, 2010
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* Initial release.
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