Merge pull request #22 from erizocosmico/feature/generated

implement IsGenerated helper to filter out generated files
2024-12-05 00:00:34 +00:00 · 2020-05-28 10:34:37 +02:00 · 2020-05-28 10:34:37 +02:00 · e1f1b57a84
commit e1f1b57a84
parent bda45fdc8e 8ff885a3a8
54 changed files with 4513 additions and 98 deletions
--- a/README.md
+++ b/README.md
@ -1,26 +1,26 @@
 # go-enry [![GoDoc](https://godoc.org/github.com/go-enry/go-enry?status.svg)](https://pkg.go.dev/github.com/go-enry/go-enry/v2) [![Test](https://github.com/go-enry/go-enry/workflows/Test/badge.svg)](https://github.com/go-enry/go-enry/actions?query=workflow%3ATest+branch%3Amaster) [![codecov](https://codecov.io/gh/go-enry/go-enry/branch/master/graph/badge.svg)](https://codecov.io/gh/go-enry/go-enry)

-Programming language detector and toolbox to ignore binary or vendored files. *enry*, started as a port to _Go_ of the original [Linguist](https://github.com/github/linguist) _Ruby_ library, that has an improved *2x performance*.
+Programming language detector and toolbox to ignore binary or vendored files. _enry_, started as a port to _Go_ of the original [Linguist](https://github.com/github/linguist) _Ruby_ library, that has an improved _2x performance_.

-* [CLI](#cli)
-* [Library](#library)
-    * [Use cases](#use-cases)
-        * [By filename](#by-filename)
-        * [By text](#by-text)
-        * [By file](#by-file)
-        * [Filtering](#filtering-vendoring-binaries-etc)
-        * [Coloring](#language-colors-and-groups)
-    * [Languages](#languages)
-        * [Go](#go)
-        * [Java bindings](#java-bindings)
-        * [Python bindings](#python-bindings)
-* [Divergences from linguist](#divergences-from-linguist)
-* [Benchmarks](#benchmarks)
-* [Why Enry?](#why-enry)
-* [Development](#development)
-    * [Sync with github/linguist upstream](#sync-with-githublinguist-upstream)
-* [Misc](#misc)
-* [License](#license)
+- [CLI](#cli)
+- [Library](#library)
+  - [Use cases](#use-cases)
+    - [By filename](#by-filename)
+    - [By text](#by-text)
+    - [By file](#by-file)
+    - [Filtering](#filtering-vendoring-binaries-etc)
+    - [Coloring](#language-colors-and-groups)
+  - [Languages](#languages)
+    - [Go](#go)
+    - [Java bindings](#java-bindings)
+    - [Python bindings](#python-bindings)
+- [Divergences from linguist](#divergences-from-linguist)
+- [Benchmarks](#benchmarks)
+- [Why Enry?](#why-enry)
+- [Development](#development)
+  - [Sync with github/linguist upstream](#sync-with-githublinguist-upstream)
+- [Misc](#misc)
+- [License](#license)

 # CLI

@ -28,51 +28,62 @@ The CLI binary is hosted in a separate repository [go-enry/enry](https://github.

 # Library

-*enry* is also a Go library for guessing a programming language that exposes API through FFI to multiple programming environments.
+_enry_ is also a Go library for guessing a programming language that exposes API through FFI to multiple programming environments.

 ## Use cases

-*enry* guesses a programming language using a sequence of matching *strategies* that are
-applied progressively to narrow down the possible options. Each *strategy* varies on the type
+_enry_ guesses a programming language using a sequence of matching _strategies_ that are
+applied progressively to narrow down the possible options. Each _strategy_ varies on the type
 of input data that it needs to make a decision: file name, extension, the first line of the file, the full content of the file, etc.

 Depending on available input data, enry API can be roughly divided into the next categories or use cases.

 ### By filename
-Next functions require only a name of the file to make a guess:
- - `GetLanguageByExtension` uses only file extension (wich may be ambiguous)
- - `GetLanguageByFilename` useful for cases like `.gitignore`, `.bashrc`, etc
- - all [filtering helpers](#filtering)

- Please note that such guesses are expected not to be very accurate.
+Next functions require only a name of the file to make a guess:
+
+- `GetLanguageByExtension` uses only file extension (wich may be ambiguous)
+- `GetLanguageByFilename` useful for cases like `.gitignore`, `.bashrc`, etc
+- all [filtering helpers](#filtering)
+
+Please note that such guesses are expected not to be very accurate.

 ### By text
+
 To make a guess only based on the content of the file or a text snippet, use
- - `GetLanguageByShebang` reads only the first line of text to identify the [shebang](https://en.wikipedia.org/wiki/Shebang_(Unix)).
- - `GetLanguageByModeline` for cases when Vim/Emacs modeline e.g. `/* vim: set ft=cpp: */` may be present at a head or a tail of the text.
- - `GetLanguageByClassifier` uses a Bayesian classifier trained on all the `./samples/` from Linguist.
+
+- `GetLanguageByShebang` reads only the first line of text to identify the [shebang](<https://en.wikipedia.org/wiki/Shebang_(Unix)>).
+- `GetLanguageByModeline` for cases when Vim/Emacs modeline e.g. `/* vim: set ft=cpp: */` may be present at a head or a tail of the text.
+- `GetLanguageByClassifier` uses a Bayesian classifier trained on all the `./samples/` from Linguist.

  It usually is a last-resort strategy that is used to disambiguate the guess of the previous strategies, and thus it requires a list of "candidate" guesses. One can provide a list of all known languages - keys from the `data.LanguagesLogProbabilities` as possible candidates if more intelligent hypotheses are not available, at the price of possibly suboptimal accuracy.

 ### By file
+
 The most accurate guess would be one when both, the file name and the content are available:
- - `GetLanguagesByContent` only uses file extension and a set of regexp-based content heuristics.
- - `GetLanguages` uses the full set of matching strategies and is expected to be most accurate.
+
+- `GetLanguagesByContent` only uses file extension and a set of regexp-based content heuristics.
+- `GetLanguages` uses the full set of matching strategies and is expected to be most accurate.

 ### Filtering: vendoring, binaries, etc
-*enry* expose a set of file-level helpers `Is*` to simplify filtering out the files that are less interesting for the purpose of source code analysis:
- - `IsBinary`
- - `IsVendor`
- - `IsConfiguration`
- - `IsDocumentation`
- - `IsDotFile`
- - `IsImage`
- - `IsTest`
+
+_enry_ expose a set of file-level helpers `Is*` to simplify filtering out the files that are less interesting for the purpose of source code analysis:
+
+- `IsBinary`
+- `IsVendor`
+- `IsConfiguration`
+- `IsDocumentation`
+- `IsDotFile`
+- `IsImage`
+- `IsTest`
+- `IsGenerated`

 ### Language colors and groups
-*enry* exposes function to get language color to use for example in presenting statistics in graphs:
- - `GetColor`
- - `GetLanguageGroup` can be used to group similar languages together e.g. for `Less` this function will return `CSS`
+
+_enry_ exposes function to get language color to use for example in presenting statistics in graphs:
+
+- `GetColor`
+- `GetLanguageGroup` can be used to group similar languages together e.g. for `Less` this function will return `CSS`

 ## Languages

@ -137,39 +148,36 @@ Generated Python bindings using a C shared library and cffi are WIP under [src-d
 A library is going to be published on pypi as [enry](https://pypi.org/project/enry/) for
 macOS and linux platforms. Windows support is planned under [src-d/enry#150](https://github.com/src-d/enry/issues/150).

-Divergences from Linguist
------------
+## Divergences from Linguist

 The `enry` library is based on the data from `github/linguist` version **v7.9.0**.

 Parsing [linguist/samples](https://github.com/github/linguist/tree/master/samples) the following `enry` results are different from the Linguist:

-* [Heuristics for ".es" extension](https://github.com/github/linguist/blob/e761f9b013e5b61161481fcb898b59721ee40e3d/lib/linguist/heuristics.yml#L103) in JavaScript could not be parsed, due to unsupported backreference in RE2 regexp engine.
+- [Heuristics for ".es" extension](https://github.com/github/linguist/blob/e761f9b013e5b61161481fcb898b59721ee40e3d/lib/linguist/heuristics.yml#L103) in JavaScript could not be parsed, due to unsupported backreference in RE2 regexp engine.

-* [Heuristics for ".rno" extension](https://github.com/github/linguist/blob/3a1bd3c3d3e741a8aaec4704f782e06f5cd2a00d/lib/linguist/heuristics.yml#L365) in RUNOFF could not be parsed, due to unsupported lookahead in RE2 regexp engine.
+- [Heuristics for ".rno" extension](https://github.com/github/linguist/blob/3a1bd3c3d3e741a8aaec4704f782e06f5cd2a00d/lib/linguist/heuristics.yml#L365) in RUNOFF could not be parsed, due to unsupported lookahead in RE2 regexp engine.

-* [Heuristics for ".inc" extension](https://github.com/github/linguist/blob/f0e2d0d7f1ce600b2a5acccaef6b149c87d8b99c/lib/linguist/heuristics.yml#L222) in NASL could not be parsed, due to unsupported possessive quantifier in RE2 regexp engine.
+- [Heuristics for ".inc" extension](https://github.com/github/linguist/blob/f0e2d0d7f1ce600b2a5acccaef6b149c87d8b99c/lib/linguist/heuristics.yml#L222) in NASL could not be parsed, due to unsupported possessive quantifier in RE2 regexp engine.

-* As of [Linguist v5.3.2](https://github.com/github/linguist/releases/tag/v5.3.2) it is using [flex-based scanner in C for tokenization](https://github.com/github/linguist/pull/3846). Enry still uses [extract_token](https://github.com/github/linguist/pull/3846/files#diff-d5179df0b71620e3fac4535cd1368d15L60) regex-based algorithm. See [#193](https://github.com/src-d/enry/issues/193).
+- As of [Linguist v5.3.2](https://github.com/github/linguist/releases/tag/v5.3.2) it is using [flex-based scanner in C for tokenization](https://github.com/github/linguist/pull/3846). Enry still uses [extract_token](https://github.com/github/linguist/pull/3846/files#diff-d5179df0b71620e3fac4535cd1368d15L60) regex-based algorithm. See [#193](https://github.com/src-d/enry/issues/193).

-* Bayesian classifier can't distinguish "SQL" from "PLpgSQL. See [#194](https://github.com/src-d/enry/issues/194).
+- Bayesian classifier can't distinguish "SQL" from "PLpgSQL. See [#194](https://github.com/src-d/enry/issues/194).

-* Detection of [generated files](https://github.com/github/linguist/blob/bf95666fc15e49d556f2def4d0a85338423c25f3/lib/linguist/generated.rb#L53) is not supported yet.
+- Detection of [generated files](https://github.com/github/linguist/blob/bf95666fc15e49d556f2def4d0a85338423c25f3/lib/linguist/generated.rb#L53) is not supported yet.
  (Thus they are not excluded from CLI output). See [#213](https://github.com/src-d/enry/issues/213).

-* XML detection strategy is not implemented. See [#192](https://github.com/src-d/enry/issues/192).
+- XML detection strategy is not implemented. See [#192](https://github.com/src-d/enry/issues/192).

-* Overriding languages and types though `.gitattributes` is not yet supported. See [#18](https://github.com/src-d/enry/issues/18).
+- Overriding languages and types though `.gitattributes` is not yet supported. See [#18](https://github.com/src-d/enry/issues/18).

-* `enry` CLI output does NOT exclude `.gitignore`ed files and git submodules, as Linguist does
+- `enry` CLI output does NOT exclude `.gitignore`ed files and git submodules, as Linguist does

 In all the cases above that have an issue number - we plan to update enry to match Linguist behavior.

+## Benchmarks

-Benchmarks
------------
-
-Enry's language detection has been compared with Linguist's on [*linguist/samples*](https://github.com/github/linguist/tree/master/samples).
+Enry's language detection has been compared with Linguist's on [_linguist/samples_](https://github.com/github/linguist/tree/master/samples).

 We got these results:

@ -183,9 +191,7 @@ Go regexp engine being slower than Ruby's on, wich is based on [oniguruma](https

 See [instructions](#misc) for running enry with oniguruma.

-
-Why Enry?
------------
+## Why Enry?

 In the movie [My Fair Lady](https://en.wikipedia.org/wiki/My_Fair_Lady), [Professor Henry Higgins](http://www.imdb.com/character/ch0011719/) is a linguist who at the very beginning of the movie enjoys guessing the origin of people based on their accent.

@ -200,10 +206,9 @@ To run the tests use:
 Setting `ENRY_TEST_REPO` to the path to existing checkout of Linguist will avoid cloning it and sepeed tests up.
 Setting `ENRY_DEBUG=1` will provide insight in the Bayesian classifier building done by `make code-generate`.

-
 ### Sync with github/linguist upstream

-*enry* re-uses parts of the original [github/linguist](https://github.com/github/linguist) to generate internal data structures.
+_enry_ re-uses parts of the original [github/linguist](https://github.com/github/linguist) to generate internal data structures.
 In order to update to the latest release of linguist do:

 ```bash
@ -218,10 +223,10 @@ $ make code-generate

 To stay in sync, enry needs to be updated when a new release of the linguist includes changes to any of the following files:

-* [languages.yml](https://github.com/github/linguist/blob/master/lib/linguist/languages.yml)
-* [heuristics.yml](https://github.com/github/linguist/blob/master/lib/linguist/heuristics.yml)
-* [vendor.yml](https://github.com/github/linguist/blob/master/lib/linguist/vendor.yml)
-* [documentation.yml](https://github.com/github/linguist/blob/master/lib/linguist/documentation.yml)
+- [languages.yml](https://github.com/github/linguist/blob/master/lib/linguist/languages.yml)
+- [heuristics.yml](https://github.com/github/linguist/blob/master/lib/linguist/heuristics.yml)
+- [vendor.yml](https://github.com/github/linguist/blob/master/lib/linguist/vendor.yml)
+- [documentation.yml](https://github.com/github/linguist/blob/master/lib/linguist/documentation.yml)

 There is no automation for detecting the changes in the linguist project, so this process above has to be done manually from time to time.

@ -230,8 +235,6 @@ the generated files (in [data](https://github.com/go-enry/go-enry/blob/master/da

 Separating all the necessary "manual" code changes to a different PR that includes some background description and an update to the documentation on ["divergences from linguist"](#divergences-from-linguist) is very much appreciated as it simplifies the maintenance (review/release notes/etc).

-
-
 ## Misc

 <details>
@ -239,19 +242,20 @@ Separating all the necessary "manual" code changes to a different PR that includ

 ### Benchmark

-All benchmark scripts are in [*benchmarks*](https://github.com/go-enry/go-enry/blob/master/benchmarks) directory.
-
+All benchmark scripts are in [_benchmarks_](https://github.com/go-enry/go-enry/blob/master/benchmarks) directory.

 #### Dependencies
-As benchmarks depend on Ruby and Github-Linguist gem make sure you have:
- - Ruby (e.g using [`rbenv`](https://github.com/rbenv/rbenv)), [`bundler`](https://bundler.io/) installed
- - Docker
- - [native dependencies](https://github.com/github/linguist/#dependencies) installed
- - Build the gem `cd .linguist && bundle install && rake build_gem && cd -`
- - Install it `gem install --no-rdoc --no-ri --local .linguist/github-linguist-*.gem`

+As benchmarks depend on Ruby and Github-Linguist gem make sure you have:
+
+- Ruby (e.g using [`rbenv`](https://github.com/rbenv/rbenv)), [`bundler`](https://bundler.io/) installed
+- Docker
+- [native dependencies](https://github.com/github/linguist/#dependencies) installed
+- Build the gem `cd .linguist && bundle install && rake build_gem && cd -`
+- Install it `gem install --no-rdoc --no-ri --local .linguist/github-linguist-*.gem`

 #### Quick benchmark
+
 To run quicker benchmarks

    make benchmarks
@ -260,19 +264,20 @@ to get average times for the primary detection function and strategies for the w

    make benchmarks-samples

-
 #### Full benchmark
+
 If you want to reproduce the same benchmarks as reported above:
- - Make sure all [dependencies](#benchmark-dependencies) are installed
- - Install [gnuplot](http://gnuplot.info) (in order to plot the histogram)
- - Run `ENRY_TEST_REPO="$PWD/.linguist" benchmarks/run.sh` (takes ~15h)
+
+- Make sure all [dependencies](#benchmark-dependencies) are installed
+- Install [gnuplot](http://gnuplot.info) (in order to plot the histogram)
+- Run `ENRY_TEST_REPO="$PWD/.linguist" benchmarks/run.sh` (takes ~15h)

 It will run the benchmarks for enry and Linguist, parse the output, create csv files and plot the histogram.

 ### Faster regexp engine (optional)

 [Oniguruma](https://github.com/kkos/oniguruma) is CRuby's regular expression engine.
-It is very fast and performs better than the one built into Go runtime. *enry* supports swapping
+It is very fast and performs better than the one built into Go runtime. _enry_ supports swapping
 between those two engines thanks to [rubex](https://github.com/moovweb/rubex) project.
 The typical overall speedup from using Oniguruma is 1.5-2x. However, it requires CGo and the external shared library.
 On macOS with [Homebrew](https://brew.sh/), it is:
@ -297,8 +302,6 @@ and then rebuild the project.

 </details>

-
-License
------------
+## License

 Apache License, Version 2.0. See [LICENSE](LICENSE)
--- a/_testdata/C/image.c
+++ b/_testdata/C/image.c
@ -0,0 +1,42 @@
+/* GIMP RGB C-Source image dump (image.c) */
+
+static const struct {
+  guint  	 width;
+  guint  	 height;
+  guint  	 bytes_per_pixel; /* 2:RGB16, 3:RGB, 4:RGBA */ 
+  guint8 	 pixel_data[16 * 16 * 3 + 1];
+} gimp_image = {
+  16, 16, 3,
+  "\377\063\000\377T\001\377\207\001\377\272\000\377\354\000\341\377\001\256\377\000{\377\001"
+  "Z\377\000(\377\000\000\377\014\001\377>\000\377q\001\377\243\000\377\325\001\377\367\377T"
+  "\001\377\207\001\377\271\000\377\354\000\341\377\001\256\377\001{\377\001Z\377\001(\377\001"
+  "\000\377\014\001\377>\001\377q\001\377\243\000\377\325\001\377\367\001\325\377\377\207\000"
+  "\377\272\001\377\354\000\341\377\001\257\377\001|\377\000[\377\001(\377\000\001\377\013\001"
+  "\377>\000\377q\000\377\244\000\377\325\000\377\367\000\325\377\001\243\377\377\272\001"
+  "\377\354\001\340\377\001\256\377\000|\377\001Z\377\000(\377\000\001\377\014\001\377>\000\377"
+  "q\000\377\243\001\377\326\000\377\370\001\325\377\001\243\377\000q\377\377\354\000\341"
+  "\377\001\257\377\000|\377\000Z\377\001(\377\000\000\377\013\000\377?\001\377q\001\377\243\000"
+  "\377\325\001\377\370\000\326\377\000\243\377\001q\377\000>\377\340\377\001\257\377\001"
+  "{\377\001Z\377\000(\377\001\000\377\014\001\377>\001\377q\000\377\243\000\377\325\000\377\367"
+  "\001\325\377\000\243\377\000p\377\001?\377\000\014\377\256\377\000|\377\000Z\377\001'\377"
+  "\001\001\377\014\001\377>\000\377p\001\377\243\001\377\326\001\377\367\000\326\377\000\243\377"
+  "\000q\377\000>\377\000\014\377(\000\377|\377\001J\377\001(\377\001\001\377\013\000\377>\001\377"
+  "q\000\377\243\000\377\325\000\377\367\001\326\377\000\243\377\000p\377\000>\377\001\014\377"
+  "'\000\377J\001\377I\377\001'\377\000\001\377\013\001\377>\001\377p\000\377\243\000\377\326\001"
+  "\367\377\000\326\377\000\243\377\000q\377\001>\377\001\014\377(\001\377I\001\377|\001\377"
+  "'\377\001\000\377\014\000\377>\001\377p\000\377\243\000\377\326\000\367\377\000\325\377\000"
+  "\243\377\001p\377\001?\377\001\014\377(\000\377Z\000\377|\000\377\256\000\377\001\377\013\000"
+  "\377>\001\377p\000\377\243\001\377\325\001\367\377\001\326\377\000\243\377\000p\377\001?"
+  "\377\001\013\377(\000\377Z\000\377|\000\377\256\000\377\341\001\377\000\377?\001\377p\001\377"
+  "\243\001\377\326\000\367\377\001\326\377\001\243\377\001q\377\001>\377\000\014\377(\000\377"
+  "Z\001\377|\000\377\256\001\377\341\000\377\377\000\354\000\377p\000\377\243\001\377\326\001"
+  "\367\377\001\326\377\000\243\377\001q\377\000>\377\001\013\377(\001\377Z\000\377|\001\377"
+  "\257\000\377\341\000\377\377\000\354\377\001\271\000\377\243\000\377\326\001\367\377\001"
+  "\326\377\001\243\377\000q\377\000>\377\000\014\377'\001\377Z\000\377{\001\377\256\000\377"
+  "\341\001\377\377\001\354\377\001\271\377\000\207\000\377\325\001\367\377\000\326\377\000"
+  "\243\377\001q\377\001>\377\001\014\377(\000\377Z\001\377|\000\377\256\000\377\340\000\377"
+  "\377\000\354\377\001\271\377\000\207\377\000T\000\367\377\001\325\377\000\243\377\000p\377"
+  "\001>\377\001\014\377(\001\377Z\000\377|\001\377\256\000\377\341\001\377\377\000\354\377\000"
+  "\271\377\000\207\377\000T\377\001\063",
+};
+
--- a/_testdata/C/image.h
+++ b/_testdata/C/image.h
@ -0,0 +1,31 @@
+/*  GIMP header image file format (RGB): image.h  */
+
+static unsigned int width = 16;
+static unsigned int height = 16;
+
+/*  Call this macro repeatedly.  After each use, the pixel data can be extracted  */
+
+#define HEADER_PIXEL(data,pixel) {\
+pixel[0] = (((data[0] - 33) << 2) | ((data[1] - 33) >> 4)); \
+pixel[1] = ((((data[1] - 33) & 0xF) << 4) | ((data[2] - 33) >> 2)); \
+pixel[2] = ((((data[2] - 33) & 0x3) << 6) | ((data[3] - 33))); \
+data += 4; \
+}
+static char *header_data =
+	"`T-!`V1\"`Y=\"`\\I!`_Q!Y@]\"LP]!?`]\"7P]!+0]!!0]-!@]_!0^R!@_D!0`6!@`X"
+	"`V1\"`Y=\"`\\E!`_Q!Y@]\"LP]\"?`]\"7P]\"+0]\"!0]-!@]_!@^R!@_D!0`6!@`X!>8`"
+	"`Y=!`\\I\"`_Q!Y@]\"L`]\"@0]!7`]\"+0]!!@],!@]_!0^R!0_E!0`6!0`X!.8`!;0`"
+	"`\\I\"`_Q\"Y0]\"LP]!@0]\"7P]!+0]!!@]-!@]_!0^R!0_D!@`7!0`Y!>8`!;0`!((`"
+	"`_Q!Y@]\"L`]!@0]!7P]\"+0]!!0],!0]`!@^R!@_D!0`6!@`Y!.<`!+0`!8(`!$\\`"
+	"Y0]\"L`]\"?`]\"7P]!+0]\"!0]-!@]_!@^R!0_D!0`6!0`X!>8`!+0`!($`!4``!!T`"
+	"LP]!@0]!7P]\"*`]\"!@]-!@]_!0^Q!@_D!@`7!@`X!.<`!+0`!((`!$\\`!!T`+!$`"
+	"@0]\"3P]\"+0]\"!@],!0]_!@^R!0_D!0`6!0`X!><`!+0`!($`!$\\`!1T`*Q$`3A(`"
+	"3@]\"*`]!!@],!@]_!@^Q!0_D!0`7!@@`!.<`!+0`!((`!4\\`!1T`+!(`31(`@!(`"
+	"*`]\"!0]-!0]_!@^Q!0_D!0`7!0@`!.8`!+0`!8$`!4``!1T`+!$`7A$`@!$`LA$`"
+	"!@],!0]_!@^Q!0_D!@`6!@@`!><`!+0`!($`!4``!1P`+!$`7A$`@!$`LA$`Y1(`"
+	"!0]`!@^Q!@_D!@`7!0@`!><`!;0`!8(`!4\\`!!T`+!$`7A(`@!$`LA(`Y1$``Q$M"
+	"!0^Q!0_D!@`7!@@`!><`!+0`!8(`!$\\`!1P`+!(`7A$`@!(`LQ$`Y1$``Q$M`Q'Z"
+	"!0_D!0`7!@@`!><`!;0`!((`!$\\`!!T`*Q(`7A$`?Q(`LA$`Y1(``Q(M`Q'Z`Q#("
+	"!0`6!@@`!.<`!+0`!8(`!4\\`!1T`+!$`7A(`@!$`LA$`Y!$``Q$M`Q'Z`Q#(`Q\"5"
+	"!0@`!>8`!+0`!($`!4\\`!1T`+!(`7A$`@!(`LA$`Y1(``Q$M`Q#Z`Q#(`Q\"5`Q%T"
+	"";
--- a/_testdata/Data/bootstrap.css.map
+++ b/_testdata/Data/bootstrap.css.map
--- a/_testdata/Data/sourcemap.v1.map
+++ b/_testdata/Data/sourcemap.v1.map
@ -0,0 +1,12 @@
+/** Begin line maps. **/{ “file”:”out.js”, "count": 2 }
+[0,0,0,0,0,0,1,1,1,1,2]
+[2,2,2,2,2,2,3,4,4,4,4,4]
+/** Begin file information. **/
+[“a.js”, “b.js”]
+[“b.js”, “c.js”, “d.js”]
+/** Begin mapping definitions. **/
+["a.js", 1, 34]
+["a.js", 5, 2]
+["b.js", 1, 3, "event"]
+["c.js", 1, 4]
+["d.js", 3, 78, "foo"]
--- a/_testdata/Data/sourcemap.v3.map
+++ b/_testdata/Data/sourcemap.v3.map
@ -0,0 +1 @@
+{"version":3,"file":"out.js","sourceRoot":"","sources":["foo.js","bar.js"],"sourcesContent":[null,null],"names":["src","maps","are","fun"],"mappings":"A,AAAB;;ABCDE;"}
--- a/_testdata/Generated/Haxe/Main.cpp
+++ b/_testdata/Generated/Haxe/Main.cpp
@ -0,0 +1,86 @@
+// Generated by Haxe 4.0.5
+#include <hxcpp.h>
+
+#ifndef INCLUDED_Main
+#include <Main.h>
+#endif
+#ifndef INCLUDED_haxe_Log
+#include <haxe/Log.h>
+#endif
+
+HX_LOCAL_STACK_FRAME(_hx_pos_e47a9afac0942eb9_3_main,"Main","main",0xed0e206e,"Main.main","Main.hx",3,0x087e5c05)
+
+void Main_obj::__construct() { }
+
+Dynamic Main_obj::__CreateEmpty() { return new Main_obj; }
+
+void *Main_obj::_hx_vtable = 0;
+
+Dynamic Main_obj::__Create(hx::DynamicArray inArgs)
+{
+	hx::ObjectPtr< Main_obj > _hx_result = new Main_obj();
+	_hx_result->__construct();
+	return _hx_result;
+}
+
+bool Main_obj::_hx_isInstanceOf(int inClassId) {
+	return inClassId==(int)0x00000001 || inClassId==(int)0x332f6459;
+}
+
+void Main_obj::main(){
+            	HX_STACKFRAME(&_hx_pos_e47a9afac0942eb9_3_main)
+HXDLIN(   3)		::haxe::Log_obj::trace(HX_("Hello World",84,f6,db,6f),hx::SourceInfo(HX_("source/Main.hx",91,d3,a7,40),3,HX_("Main",59,64,2f,33),HX_("main",39,38,56,48)));
+            	}
+
+
+STATIC_HX_DEFINE_DYNAMIC_FUNC0(Main_obj,main,(void))
+
+
+Main_obj::Main_obj()
+{
+}
+
+bool Main_obj::__GetStatic(const ::String &inName, Dynamic &outValue, hx::PropertyAccess inCallProp)
+{
+	switch(inName.length) {
+	case 4:
+		if (HX_FIELD_EQ(inName,"main") ) { outValue = main_dyn(); return true; }
+	}
+	return false;
+}
+
+#ifdef HXCPP_SCRIPTABLE
+static hx::StorageInfo *Main_obj_sMemberStorageInfo = 0;
+static hx::StaticInfo *Main_obj_sStaticStorageInfo = 0;
+#endif
+
+hx::Class Main_obj::__mClass;
+
+static ::String Main_obj_sStaticFields[] = {
+	HX_("main",39,38,56,48),
+	::String(null())
+};
+
+void Main_obj::__register()
+{
+	Main_obj _hx_dummy;
+	Main_obj::_hx_vtable = *(void **)&_hx_dummy;
+	hx::Static(__mClass) = new hx::Class_obj();
+	__mClass->mName = HX_("Main",59,64,2f,33);
+	__mClass->mSuper = &super::__SGetClass();
+	__mClass->mConstructEmpty = &__CreateEmpty;
+	__mClass->mConstructArgs = &__Create;
+	__mClass->mGetStaticField = &Main_obj::__GetStatic;
+	__mClass->mSetStaticField = &hx::Class_obj::SetNoStaticField;
+	__mClass->mStatics = hx::Class_obj::dupFunctions(Main_obj_sStaticFields);
+	__mClass->mMembers = hx::Class_obj::dupFunctions(0 /* sMemberFields */);
+	__mClass->mCanCast = hx::TCanCast< Main_obj >;
+#ifdef HXCPP_SCRIPTABLE
+	__mClass->mMemberStorageInfo = Main_obj_sMemberStorageInfo;
+#endif
+#ifdef HXCPP_SCRIPTABLE
+	__mClass->mStaticStorageInfo = Main_obj_sStaticStorageInfo;
+#endif
+	hx::_hx_RegisterClass(__mClass->mName, __mClass);
+}
+
--- a/_testdata/Generated/Haxe/Main.cs
+++ b/_testdata/Generated/Haxe/Main.cs
@ -0,0 +1,37 @@
+// Generated by Haxe 4.0.5
+
+#pragma warning disable 109, 114, 219, 429, 168, 162
+public class EntryPoint__Main {
+	public static void Main() {
+		global::cs.Boot.init();
+		{
+			global::Main.main();
+		}
+	}
+}
+
+public class Main : global::haxe.lang.HxObject {
+	
+	public Main(global::haxe.lang.EmptyObject empty) {
+	}
+	
+	
+	public Main() {
+		global::Main.__hx_ctor__Main(this);
+	}
+	
+	
+	protected static void __hx_ctor__Main(global::Main __hx_this) {
+	}
+	
+	
+	public static void main() {
+		unchecked {
+			global::haxe.Log.trace.__hx_invoke2_o(default(double), "Hello World", default(double), new global::haxe.lang.DynamicObject(new int[]{302979532, 1547539107, 1648581351}, new object[]{"main", "Main", "source/Main.hx"}, new int[]{1981972957}, new double[]{((double) (3) )}));
+		}
+	}
+	
+	
+}
+
+
--- a/_testdata/Generated/Haxe/Main.h
+++ b/_testdata/Generated/Haxe/Main.h
@ -0,0 +1,58 @@
+// Generated by Haxe 4.0.5
+#ifndef INCLUDED_Main
+#define INCLUDED_Main
+
+#ifndef HXCPP_H
+#include <hxcpp.h>
+#endif
+
+HX_DECLARE_CLASS0(Main)
+
+
+
+class HXCPP_CLASS_ATTRIBUTES Main_obj : public hx::Object
+{
+	public:
+		typedef hx::Object super;
+		typedef Main_obj OBJ_;
+		Main_obj();
+
+	public:
+		enum { _hx_ClassId = 0x332f6459 };
+
+		void __construct();
+		inline void *operator new(size_t inSize, bool inContainer=false,const char *inName="Main")
+			{ return hx::Object::operator new(inSize,inContainer,inName); }
+		inline void *operator new(size_t inSize, int extra)
+			{ return hx::Object::operator new(inSize+extra,false,"Main"); }
+
+		inline static hx::ObjectPtr< Main_obj > __new() {
+			hx::ObjectPtr< Main_obj > __this = new Main_obj();
+			__this->__construct();
+			return __this;
+		}
+
+		inline static hx::ObjectPtr< Main_obj > __alloc(hx::Ctx *_hx_ctx) {
+			Main_obj *__this = (Main_obj*)(hx::Ctx::alloc(_hx_ctx, sizeof(Main_obj), false, "Main"));
+			*(void **)__this = Main_obj::_hx_vtable;
+			return __this;
+		}
+
+		static void * _hx_vtable;
+		static Dynamic __CreateEmpty();
+		static Dynamic __Create(hx::DynamicArray inArgs);
+		//~Main_obj();
+
+		HX_DO_RTTI_ALL;
+		static bool __GetStatic(const ::String &inString, Dynamic &outValue, hx::PropertyAccess inCallProp);
+		static void __register();
+		bool _hx_isInstanceOf(int inClassId);
+		::String __ToString() const { return HX_("Main",59,64,2f,33); }
+
+		static void main();
+		static ::Dynamic main_dyn();
+
+};
+
+
+#endif /* INCLUDED_Main */ 
--- a/_testdata/Generated/Haxe/Main.java
+++ b/_testdata/Generated/Haxe/Main.java
@ -0,0 +1,41 @@
+// Generated by Haxe 4.0.5
+package haxe.root;
+
+import haxe.root.*;
+
+@SuppressWarnings(value={"rawtypes", "unchecked"})
+public class Main extends haxe.lang.HxObject
+{
+	public static void main(String[] args)
+	{
+		haxe.java.Init.init();
+		{
+			haxe.root.Main.main();
+		}
+	}
+	
+	public Main(haxe.lang.EmptyObject empty)
+	{
+	}
+	
+	
+	public Main()
+	{
+		haxe.root.Main.__hx_ctor__Main(this);
+	}
+	
+	
+	protected static void __hx_ctor__Main(haxe.root.Main __hx_this)
+	{
+	}
+	
+	
+	public static void main()
+	{
+		haxe.Log.trace.__hx_invoke2_o(0.0, "Hello World", 0.0, new haxe.lang.DynamicObject(new java.lang.String[]{"className", "fileName", "methodName"}, new java.lang.Object[]{"Main", "source/Main.hx", "main"}, new java.lang.String[]{"lineNumber"}, new double[]{((double) (((double) (3) )) )}));
+	}
+	
+	
+}
+
+
--- a/_testdata/Generated/Haxe/Main.php
+++ b/_testdata/Generated/Haxe/Main.php
@ -0,0 +1,31 @@
+<?php
+/**
+ * Generated by Haxe 4.0.5
+ */
+
+use \php\_Boot\HxAnon;
+use \php\Boot;
+use \haxe\Log;
+
+class Main {
+	/**
+	 * @return void
+	 */
+	public static function main () {
+		#source/Main.hx:3: characters 3-8
+		(Log::$trace)("Hello World", new HxAnon([
+			"fileName" => "source/Main.hx",
+			"lineNumber" => 3,
+			"className" => "Main",
+			"methodName" => "main",
+		]));
+	}
+
+	/**
+	 * @return void
+	 */
+	public function __construct () {
+	}
+}
+
+Boot::registerClass(Main::class, 'Main');
--- a/_testdata/Generated/Haxe/main.js
+++ b/_testdata/Generated/Haxe/main.js
@ -0,0 +1,8 @@
+// Generated by Haxe 4.0.5
+(function ($global) { "use strict";
+var Main = function() { };
+Main.main = function() {
+	console.log("source/Main.hx:3:","Hello World");
+};
+Main.main();
+})({});
--- a/_testdata/Generated/Haxe/main.lua
+++ b/_testdata/Generated/Haxe/main.lua
@ -0,0 +1,816 @@
+-- Generated by Haxe 4.0.5
+local _hx_array_mt = {
+	__newindex = function(t,k,v)
+	  local len = t.length
+	  t.length =  k >= len and (k + 1) or len
+	  rawset(t,k,v)
+	end
+  }
+  
+  local function _hx_tab_array(tab,length)
+	tab.length = length
+	return setmetatable(tab, _hx_array_mt)
+  end
+  
+  local function _hx_anon_newindex(t,k,v) t.__fields__[k] = true; rawset(t,k,v); end
+  local _hx_anon_mt = {__newindex=_hx_anon_newindex}
+  local function _hx_a(...)
+	local __fields__ = {};
+	local ret = {__fields__ = __fields__};
+	local max = select('#',...);
+	local tab = {...};
+	local cur = 1;
+	while cur < max do
+	  local v = tab[cur];
+	  __fields__[v] = true;
+	  ret[v] = tab[cur+1];
+	  cur = cur + 2
+	end
+	return setmetatable(ret, _hx_anon_mt)
+  end
+  
+  local function _hx_e()
+	return setmetatable({__fields__ = {}}, _hx_anon_mt)
+  end
+  
+  local function _hx_o(obj)
+	return setmetatable(obj, _hx_anon_mt)
+  end
+  
+  local function _hx_new(prototype)
+	return setmetatable({__fields__ = {}}, {__newindex=_hx_anon_newindex, __index=prototype})
+  end
+  
+  local _hxClasses = {}
+  local Int = _hx_e();
+  local Dynamic = _hx_e();
+  local Float = _hx_e();
+  local Bool = _hx_e();
+  local Class = _hx_e();
+  local Enum = _hx_e();
+  
+  local Array = _hx_e()
+  __lua_lib_luautf8_Utf8 = _G.require("lua-utf8")
+  local Main = _hx_e()
+  local Math = _hx_e()
+  local String = _hx_e()
+  local Std = _hx_e()
+  __haxe_Log = _hx_e()
+  __lua_Boot = _hx_e()
+  
+  local _hx_bind, _hx_bit, _hx_staticToInstance, _hx_funcToField, _hx_maxn, _hx_print, _hx_apply_self, _hx_box_mr, _hx_bit_clamp, _hx_table, _hx_bit_raw
+  local _hx_pcall_default = {};
+  local _hx_pcall_break = {};
+  
+  Array.new = function() 
+	local self = _hx_new(Array.prototype)
+	Array.super(self)
+	return self
+  end
+  Array.super = function(self) 
+	_hx_tab_array(self, 0);
+  end
+  Array.prototype = _hx_a();
+  Array.prototype.concat = function(self,a) 
+	local _g = _hx_tab_array({}, 0);
+	local _g1 = 0;
+	local _g2 = self;
+	while (_g1 < _g2.length) do 
+	  local i = _g2[_g1];
+	  _g1 = _g1 + 1;
+	  _g:push(i);
+	end;
+	local ret = _g;
+	local _g3 = 0;
+	while (_g3 < a.length) do 
+	  local i1 = a[_g3];
+	  _g3 = _g3 + 1;
+	  ret:push(i1);
+	end;
+	do return ret end
+  end
+  Array.prototype.join = function(self,sep) 
+	local tbl = ({});
+	local _gthis = self;
+	local cur_length = 0;
+	local i = _hx_o({__fields__={hasNext=true,next=true},hasNext=function(self) 
+	  do return cur_length < _gthis.length end;
+	end,next=function(self) 
+	  cur_length = cur_length + 1;
+	  do return _gthis[cur_length - 1] end;
+	end});
+	while (i:hasNext()) do 
+	  local i1 = i:next();
+	  _G.table.insert(tbl, Std.string(i1));
+	end;
+	do return _G.table.concat(tbl, sep) end
+  end
+  Array.prototype.pop = function(self) 
+	if (self.length == 0) then 
+	  do return nil end;
+	end;
+	local ret = self[self.length - 1];
+	self[self.length - 1] = nil;
+	self.length = self.length - 1;
+	do return ret end
+  end
+  Array.prototype.push = function(self,x) 
+	self[self.length] = x;
+	do return self.length end
+  end
+  Array.prototype.reverse = function(self) 
+	local tmp;
+	local i = 0;
+	while (i < Std.int(self.length / 2)) do 
+	  tmp = self[i];
+	  self[i] = self[(self.length - i) - 1];
+	  self[(self.length - i) - 1] = tmp;
+	  i = i + 1;
+	end;
+  end
+  Array.prototype.shift = function(self) 
+	if (self.length == 0) then 
+	  do return nil end;
+	end;
+	local ret = self[0];
+	if (self.length == 1) then 
+	  self[0] = nil;
+	else
+	  if (self.length > 1) then 
+		self[0] = self[1];
+		_G.table.remove(self, 1);
+	  end;
+	end;
+	local tmp = self;
+	tmp.length = tmp.length - 1;
+	do return ret end
+  end
+  Array.prototype.slice = function(self,pos,_end) 
+	if ((_end == nil) or (_end > self.length)) then 
+	  _end = self.length;
+	else
+	  if (_end < 0) then 
+		_end = _G.math.fmod((self.length - (_G.math.fmod(-_end, self.length))), self.length);
+	  end;
+	end;
+	if (pos < 0) then 
+	  pos = _G.math.fmod((self.length - (_G.math.fmod(-pos, self.length))), self.length);
+	end;
+	if ((pos > _end) or (pos > self.length)) then 
+	  do return _hx_tab_array({}, 0) end;
+	end;
+	local ret = _hx_tab_array({}, 0);
+	local _g = pos;
+	local _g1 = _end;
+	while (_g < _g1) do 
+	  _g = _g + 1;
+	  local i = _g - 1;
+	  ret:push(self[i]);
+	end;
+	do return ret end
+  end
+  Array.prototype.sort = function(self,f) 
+	local i = 0;
+	local l = self.length;
+	while (i < l) do 
+	  local swap = false;
+	  local j = 0;
+	  local max = (l - i) - 1;
+	  while (j < max) do 
+		if (f(self[j], self[j + 1]) > 0) then 
+		  local tmp = self[j + 1];
+		  self[j + 1] = self[j];
+		  self[j] = tmp;
+		  swap = true;
+		end;
+		j = j + 1;
+	  end;
+	  if (not swap) then 
+		break;
+	  end;
+	  i = i + 1;
+	end;
+  end
+  Array.prototype.splice = function(self,pos,len) 
+	if ((len < 0) or (pos > self.length)) then 
+	  do return _hx_tab_array({}, 0) end;
+	else
+	  if (pos < 0) then 
+		pos = self.length - (_G.math.fmod(-pos, self.length));
+	  end;
+	end;
+	len = Math.min(len, self.length - pos);
+	local ret = _hx_tab_array({}, 0);
+	local _g = pos;
+	local _g1 = pos + len;
+	while (_g < _g1) do 
+	  _g = _g + 1;
+	  local i = _g - 1;
+	  ret:push(self[i]);
+	  self[i] = self[i + len];
+	end;
+	local _g2 = pos + len;
+	local _g3 = self.length;
+	while (_g2 < _g3) do 
+	  _g2 = _g2 + 1;
+	  local i1 = _g2 - 1;
+	  self[i1] = self[i1 + len];
+	end;
+	local tmp = self;
+	tmp.length = tmp.length - len;
+	do return ret end
+  end
+  Array.prototype.toString = function(self) 
+	local tbl = ({});
+	_G.table.insert(tbl, "[");
+	_G.table.insert(tbl, self:join(","));
+	_G.table.insert(tbl, "]");
+	do return _G.table.concat(tbl, "") end
+  end
+  Array.prototype.unshift = function(self,x) 
+	local len = self.length;
+	local _g = 0;
+	local _g1 = len;
+	while (_g < _g1) do 
+	  _g = _g + 1;
+	  local i = _g - 1;
+	  self[len - i] = self[(len - i) - 1];
+	end;
+	self[0] = x;
+  end
+  Array.prototype.insert = function(self,pos,x) 
+	if (pos > self.length) then 
+	  pos = self.length;
+	end;
+	if (pos < 0) then 
+	  pos = self.length + pos;
+	  if (pos < 0) then 
+		pos = 0;
+	  end;
+	end;
+	local cur_len = self.length;
+	while (cur_len > pos) do 
+	  self[cur_len] = self[cur_len - 1];
+	  cur_len = cur_len - 1;
+	end;
+	self[pos] = x;
+  end
+  Array.prototype.remove = function(self,x) 
+	local _g = 0;
+	local _g1 = self.length;
+	while (_g < _g1) do 
+	  _g = _g + 1;
+	  local i = _g - 1;
+	  if (self[i] == x) then 
+		local _g2 = i;
+		local _g11 = self.length - 1;
+		while (_g2 < _g11) do 
+		  _g2 = _g2 + 1;
+		  local j = _g2 - 1;
+		  self[j] = self[j + 1];
+		end;
+		self[self.length - 1] = nil;
+		self.length = self.length - 1;
+		do return true end;
+	  end;
+	end;
+	do return false end
+  end
+  Array.prototype.indexOf = function(self,x,fromIndex) 
+	local _end = self.length;
+	if (fromIndex == nil) then 
+	  fromIndex = 0;
+	else
+	  if (fromIndex < 0) then 
+		fromIndex = self.length + fromIndex;
+		if (fromIndex < 0) then 
+		  fromIndex = 0;
+		end;
+	  end;
+	end;
+	local _g = fromIndex;
+	local _g1 = _end;
+	while (_g < _g1) do 
+	  _g = _g + 1;
+	  local i = _g - 1;
+	  if (x == self[i]) then 
+		do return i end;
+	  end;
+	end;
+	do return -1 end
+  end
+  Array.prototype.lastIndexOf = function(self,x,fromIndex) 
+	if ((fromIndex == nil) or (fromIndex >= self.length)) then 
+	  fromIndex = self.length - 1;
+	else
+	  if (fromIndex < 0) then 
+		fromIndex = self.length + fromIndex;
+		if (fromIndex < 0) then 
+		  do return -1 end;
+		end;
+	  end;
+	end;
+	local i = fromIndex;
+	while (i >= 0) do 
+	  if (self[i] == x) then 
+		do return i end;
+	  else
+		i = i - 1;
+	  end;
+	end;
+	do return -1 end
+  end
+  Array.prototype.copy = function(self) 
+	local _g = _hx_tab_array({}, 0);
+	local _g1 = 0;
+	local _g2 = self;
+	while (_g1 < _g2.length) do 
+	  local i = _g2[_g1];
+	  _g1 = _g1 + 1;
+	  _g:push(i);
+	end;
+	do return _g end
+  end
+  Array.prototype.map = function(self,f) 
+	local _g = _hx_tab_array({}, 0);
+	local _g1 = 0;
+	local _g2 = self;
+	while (_g1 < _g2.length) do 
+	  local i = _g2[_g1];
+	  _g1 = _g1 + 1;
+	  _g:push(f(i));
+	end;
+	do return _g end
+  end
+  Array.prototype.filter = function(self,f) 
+	local _g = _hx_tab_array({}, 0);
+	local _g1 = 0;
+	local _g2 = self;
+	while (_g1 < _g2.length) do 
+	  local i = _g2[_g1];
+	  _g1 = _g1 + 1;
+	  if (f(i)) then 
+		_g:push(i);
+	  end;
+	end;
+	do return _g end
+  end
+  Array.prototype.iterator = function(self) 
+	local _gthis = self;
+	local cur_length = 0;
+	do return _hx_o({__fields__={hasNext=true,next=true},hasNext=function(self) 
+	  do return cur_length < _gthis.length end;
+	end,next=function(self) 
+	  cur_length = cur_length + 1;
+	  do return _gthis[cur_length - 1] end;
+	end}) end
+  end
+  Array.prototype.resize = function(self,len) 
+	if (self.length < len) then 
+	  self.length = len;
+	else
+	  if (self.length > len) then 
+		local _g = len;
+		local _g1 = self.length;
+		while (_g < _g1) do 
+		  _g = _g + 1;
+		  local i = _g - 1;
+		  self[i] = nil;
+		end;
+		self.length = len;
+	  end;
+	end;
+  end
+  
+  Main.new = {}
+  Main.main = function() 
+	__haxe_Log.trace("Hello World", _hx_o({__fields__={fileName=true,lineNumber=true,className=true,methodName=true},fileName="source/Main.hx",lineNumber=3,className="Main",methodName="main"}));
+  end
+  
+  Math.new = {}
+  Math.isNaN = function(f) 
+	do return f ~= f end;
+  end
+  Math.isFinite = function(f) 
+	if (f > -_G.math.huge) then 
+	  do return f < _G.math.huge end;
+	else
+	  do return false end;
+	end;
+  end
+  Math.min = function(a,b) 
+	if (Math.isNaN(a) or Math.isNaN(b)) then 
+	  do return (0/0) end;
+	else
+	  do return _G.math.min(a, b) end;
+	end;
+  end
+  
+  String.new = function(string) 
+	local self = _hx_new(String.prototype)
+	String.super(self,string)
+	self = string
+	return self
+  end
+  String.super = function(self,string) 
+  end
+  String.__index = function(s,k) 
+	if (k == "length") then 
+	  do return __lua_lib_luautf8_Utf8.len(s) end;
+	else
+	  local o = String.prototype;
+	  local field = k;
+	  if ((function() 
+		local _hx_1
+		if ((_G.type(o) == "string") and ((String.prototype[field] ~= nil) or (field == "length"))) then 
+		_hx_1 = true; elseif (o.__fields__ ~= nil) then 
+		_hx_1 = o.__fields__[field] ~= nil; else 
+		_hx_1 = o[field] ~= nil; end
+		return _hx_1
+	  end )()) then 
+		do return String.prototype[k] end;
+	  else
+		if (String.__oldindex ~= nil) then 
+		  if (_G.type(String.__oldindex) == "function") then 
+			do return String.__oldindex(s, k) end;
+		  else
+			if (_G.type(String.__oldindex) == "table") then 
+			  do return String.__oldindex[k] end;
+			end;
+		  end;
+		  do return nil end;
+		else
+		  do return nil end;
+		end;
+	  end;
+	end;
+  end
+  String.fromCharCode = function(code) 
+	do return __lua_lib_luautf8_Utf8.char(code) end;
+  end
+  String.prototype = _hx_a();
+  String.prototype.toUpperCase = function(self) 
+	do return __lua_lib_luautf8_Utf8.upper(self) end
+  end
+  String.prototype.toLowerCase = function(self) 
+	do return __lua_lib_luautf8_Utf8.lower(self) end
+  end
+  String.prototype.indexOf = function(self,str,startIndex) 
+	if (startIndex == nil) then 
+	  startIndex = 1;
+	else
+	  startIndex = startIndex + 1;
+	end;
+	local r = __lua_lib_luautf8_Utf8.find(self, str, startIndex, true);
+	if ((r ~= nil) and (r > 0)) then 
+	  do return r - 1 end;
+	else
+	  do return -1 end;
+	end;
+  end
+  String.prototype.lastIndexOf = function(self,str,startIndex) 
+	local i = 0;
+	local ret = -1;
+	if (startIndex == nil) then 
+	  startIndex = __lua_lib_luautf8_Utf8.len(self);
+	end;
+	while (true) do 
+	  local startIndex1 = ret + 1;
+	  if (startIndex1 == nil) then 
+		startIndex1 = 1;
+	  else
+		startIndex1 = startIndex1 + 1;
+	  end;
+	  local r = __lua_lib_luautf8_Utf8.find(self, str, startIndex1, true);
+	  local p = (function() 
+		local _hx_1
+		if ((r ~= nil) and (r > 0)) then 
+		_hx_1 = r - 1; else 
+		_hx_1 = -1; end
+		return _hx_1
+	  end )();
+	  if ((p == -1) or (p > startIndex)) then 
+		break;
+	  end;
+	  ret = p;
+	end;
+	do return ret end
+  end
+  String.prototype.split = function(self,delimiter) 
+	local idx = 1;
+	local ret = _hx_tab_array({}, 0);
+	local delim_offset = (function() 
+	  local _hx_1
+	  if (__lua_lib_luautf8_Utf8.len(delimiter) > 0) then 
+	  _hx_1 = __lua_lib_luautf8_Utf8.len(delimiter); else 
+	  _hx_1 = 1; end
+	  return _hx_1
+	end )();
+	while (idx ~= nil) do 
+	  local newidx = 0;
+	  if (__lua_lib_luautf8_Utf8.len(delimiter) > 0) then 
+		newidx = __lua_lib_luautf8_Utf8.find(self, delimiter, idx, true);
+	  else
+		if (idx >= __lua_lib_luautf8_Utf8.len(self)) then 
+		  newidx = nil;
+		else
+		  newidx = idx + 1;
+		end;
+	  end;
+	  if (newidx ~= nil) then 
+		local match = __lua_lib_luautf8_Utf8.sub(self, idx, newidx - 1);
+		ret:push(match);
+		idx = newidx + __lua_lib_luautf8_Utf8.len(delimiter);
+	  else
+		ret:push(__lua_lib_luautf8_Utf8.sub(self, idx, __lua_lib_luautf8_Utf8.len(self)));
+		idx = nil;
+	  end;
+	end;
+	do return ret end
+  end
+  String.prototype.toString = function(self) 
+	do return self end
+  end
+  String.prototype.substring = function(self,startIndex,endIndex) 
+	if (endIndex == nil) then 
+	  endIndex = __lua_lib_luautf8_Utf8.len(self);
+	end;
+	if (endIndex < 0) then 
+	  endIndex = 0;
+	end;
+	if (startIndex < 0) then 
+	  startIndex = 0;
+	end;
+	if (endIndex < startIndex) then 
+	  do return __lua_lib_luautf8_Utf8.sub(self, endIndex + 1, startIndex) end;
+	else
+	  do return __lua_lib_luautf8_Utf8.sub(self, startIndex + 1, endIndex) end;
+	end;
+  end
+  String.prototype.charAt = function(self,index) 
+	do return __lua_lib_luautf8_Utf8.sub(self, index + 1, index + 1) end
+  end
+  String.prototype.charCodeAt = function(self,index) 
+	do return __lua_lib_luautf8_Utf8.byte(self, index + 1) end
+  end
+  String.prototype.substr = function(self,pos,len) 
+	if ((len == nil) or (len > (pos + __lua_lib_luautf8_Utf8.len(self)))) then 
+	  len = __lua_lib_luautf8_Utf8.len(self);
+	else
+	  if (len < 0) then 
+		len = __lua_lib_luautf8_Utf8.len(self) + len;
+	  end;
+	end;
+	if (pos < 0) then 
+	  pos = __lua_lib_luautf8_Utf8.len(self) + pos;
+	end;
+	if (pos < 0) then 
+	  pos = 0;
+	end;
+	do return __lua_lib_luautf8_Utf8.sub(self, pos + 1, pos + len) end
+  end
+  
+  Std.new = {}
+  Std.string = function(s) 
+	do return __lua_Boot.__string_rec(s) end;
+  end
+  Std.int = function(x) 
+	if (not Math.isFinite(x) or Math.isNaN(x)) then 
+	  do return 0 end;
+	else
+	  do return _hx_bit_clamp(x) end;
+	end;
+  end
+  
+  __haxe_Log.new = {}
+  __haxe_Log.formatOutput = function(v,infos) 
+	local str = Std.string(v);
+	if (infos == nil) then 
+	  do return str end;
+	end;
+	local pstr = Std.string(Std.string(infos.fileName) .. Std.string(":")) .. Std.string(infos.lineNumber);
+	if (infos.customParams ~= nil) then 
+	  local _g = 0;
+	  local _g1 = infos.customParams;
+	  while (_g < _g1.length) do 
+		local v1 = _g1[_g];
+		_g = _g + 1;
+		str = Std.string(str) .. Std.string((Std.string(", ") .. Std.string(Std.string(v1))));
+	  end;
+	end;
+	do return Std.string(Std.string(pstr) .. Std.string(": ")) .. Std.string(str) end;
+  end
+  __haxe_Log.trace = function(v,infos) 
+	local str = __haxe_Log.formatOutput(v, infos);
+	_hx_print(str);
+  end
+  
+  __lua_Boot.new = {}
+  __lua_Boot.isArray = function(o) 
+	if (_G.type(o) == "table") then 
+	  if ((o.__enum__ == nil) and (_G.getmetatable(o) ~= nil)) then 
+		do return _G.getmetatable(o).__index == Array.prototype end;
+	  else
+		do return false end;
+	  end;
+	else
+	  do return false end;
+	end;
+  end
+  __lua_Boot.printEnum = function(o,s) 
+	if (o.length == 2) then 
+	  do return o[0] end;
+	else
+	  local str = Std.string(Std.string(o[0])) .. Std.string("(");
+	  s = Std.string(s) .. Std.string("\t");
+	  local _g = 2;
+	  local _g1 = o.length;
+	  while (_g < _g1) do 
+		_g = _g + 1;
+		local i = _g - 1;
+		if (i ~= 2) then 
+		  str = Std.string(str) .. Std.string((Std.string(",") .. Std.string(__lua_Boot.__string_rec(o[i], s))));
+		else
+		  str = Std.string(str) .. Std.string(__lua_Boot.__string_rec(o[i], s));
+		end;
+	  end;
+	  do return Std.string(str) .. Std.string(")") end;
+	end;
+  end
+  __lua_Boot.printClassRec = function(c,result,s) 
+	if (result == nil) then 
+	  result = "";
+	end;
+	local f = __lua_Boot.__string_rec;
+	for k,v in pairs(c) do if result ~= '' then result = result .. ', ' end result = result .. k .. ':' .. f(v, s.. '	') end;
+	do return result end;
+  end
+  __lua_Boot.__string_rec = function(o,s) 
+	if (s == nil) then 
+	  s = "";
+	end;
+	if (__lua_lib_luautf8_Utf8.len(s) >= 5) then 
+	  do return "<...>" end;
+	end;
+	local _g = type(o);
+	if (_g) == "boolean" then 
+	  do return tostring(o) end;
+	elseif (_g) == "function" then 
+	  do return "<function>" end;
+	elseif (_g) == "nil" then 
+	  do return "null" end;
+	elseif (_g) == "number" then 
+	  if (o == _G.math.huge) then 
+		do return "Infinity" end;
+	  else
+		if (o == -_G.math.huge) then 
+		  do return "-Infinity" end;
+		else
+		  if (o == 0) then 
+			do return "0" end;
+		  else
+			if (o ~= o) then 
+			  do return "NaN" end;
+			else
+			  do return tostring(o) end;
+			end;
+		  end;
+		end;
+	  end;
+	elseif (_g) == "string" then 
+	  do return o end;
+	elseif (_g) == "table" then 
+	  if (o.__enum__ ~= nil) then 
+		do return __lua_Boot.printEnum(o, s) end;
+	  else
+		if ((_hx_wrap_if_string_field(o,'toString') ~= nil) and not __lua_Boot.isArray(o)) then 
+		  do return _hx_wrap_if_string_field(o,'toString')(o) end;
+		else
+		  if (__lua_Boot.isArray(o)) then 
+			local o2 = o;
+			if (__lua_lib_luautf8_Utf8.len(s) > 5) then 
+			  do return "[...]" end;
+			else
+			  local _g1 = _hx_tab_array({}, 0);
+			  local _g11 = 0;
+			  while (_g11 < o2.length) do 
+				local i = o2[_g11];
+				_g11 = _g11 + 1;
+				_g1:push(__lua_Boot.__string_rec(i, Std.string(s) .. Std.string(1)));
+			  end;
+			  do return Std.string(Std.string("[") .. Std.string(_g1:join(","))) .. Std.string("]") end;
+			end;
+		  else
+			if (o.__class__ ~= nil) then 
+			  do return Std.string(Std.string("{") .. Std.string(__lua_Boot.printClassRec(o, "", Std.string(s) .. Std.string("\t")))) .. Std.string("}") end;
+			else
+			  local fields = __lua_Boot.fieldIterator(o);
+			  local buffer = ({});
+			  local first = true;
+			  _G.table.insert(buffer, "{ ");
+			  local f = fields;
+			  while (f:hasNext()) do 
+				local f1 = f:next();
+				if (first) then 
+				  first = false;
+				else
+				  _G.table.insert(buffer, ", ");
+				end;
+				_G.table.insert(buffer, Std.string(Std.string(Std.string("") .. Std.string(Std.string(f1))) .. Std.string(" : ")) .. Std.string(__lua_Boot.__string_rec(o[f1], Std.string(s) .. Std.string("\t"))));
+			  end;
+			  _G.table.insert(buffer, " }");
+			  do return _G.table.concat(buffer, "") end;
+			end;
+		  end;
+		end;
+	  end;
+	elseif (_g) == "thread" then 
+	  do return "<thread>" end;
+	elseif (_g) == "userdata" then 
+	  local mt = _G.getmetatable(o);
+	  if ((mt ~= nil) and (mt.__tostring ~= nil)) then 
+		do return _G.tostring(o) end;
+	  else
+		do return "<userdata>" end;
+	  end;else
+	_G.error("Unknown Lua type",0); end;
+  end
+  __lua_Boot.fieldIterator = function(o) 
+	if (_G.type(o) ~= "table") then 
+	  do return _hx_o({__fields__={next=true,hasNext=true},next=function(self) 
+		do return nil end;
+	  end,hasNext=function(self) 
+		do return false end;
+	  end}) end;
+	end;
+	local tbl = (function() 
+	  local _hx_1
+	  if (o.__fields__ ~= nil) then 
+	  _hx_1 = o.__fields__; else 
+	  _hx_1 = o; end
+	  return _hx_1
+	end )();
+	local cur = _G.pairs(tbl);
+	local next_valid = function(tbl1,val) 
+	  while (__lua_Boot.hiddenFields[val] ~= nil) do 
+		val = cur(tbl1, val);
+	  end;
+	  do return val end;
+	end;
+	local cur_val = next_valid(tbl, cur(tbl, nil));
+	do return _hx_o({__fields__={next=true,hasNext=true},next=function(self) 
+	  local ret = cur_val;
+	  cur_val = next_valid(tbl, cur(tbl, cur_val));
+	  do return ret end;
+	end,hasNext=function(self) 
+	  do return cur_val ~= nil end;
+	end}) end;
+  end
+  _hx_bit_clamp = function(v)
+	if v <= 2147483647 and v >= -2147483648 then
+	  if v > 0 then return _G.math.floor(v)
+	  else return _G.math.ceil(v)
+	  end
+	end
+	if v > 2251798999999999 then v = v*2 end;
+	if (v ~= v or math.abs(v) == _G.math.huge) then return nil end
+	return _hx_bit.band(v, 2147483647 ) - math.abs(_hx_bit.band(v, 2147483648))
+  end
+  
+  -- require this for lua 5.1
+  pcall(require, 'bit')
+  if bit then
+	_hx_bit = bit
+  else
+	local _hx_bit_raw = _G.require('bit32')
+	_hx_bit = setmetatable({}, { __index = _hx_bit_raw });
+	-- lua 5.2 weirdness
+	_hx_bit.bnot = function(...) return _hx_bit_clamp(_hx_bit_raw.bnot(...)) end;
+	_hx_bit.bxor = function(...) return _hx_bit_clamp(_hx_bit_raw.bxor(...)) end;
+  end
+  
+  _hx_array_mt.__index = Array.prototype
+  
+  local _hx_static_init = function()
+	__lua_Boot.hiddenFields = {__id__=true, hx__closures=true, super=true, prototype=true, __fields__=true, __ifields__=true, __class__=true, __properties__=true}
+	
+	
+  end
+  
+  _hx_print = print or (function() end)
+  
+  _hx_wrap_if_string_field = function(o, fld)
+	if _G.type(o) == 'string' then
+	  if fld == 'length' then
+		return _G.string.len(o)
+	  else
+		return String.prototype[fld]
+	  end
+	else
+	  return o[fld]
+	end
+  end
+  
+  _hx_static_init();
+  Main.main()
+  
--- a/_testdata/Generated/Haxe/main.py
+++ b/_testdata/Generated/Haxe/main.py
@ -0,0 +1,28 @@
+# Generated by Haxe 4.0.5
+# coding: utf-8
+import sys
+
+
+
+class Main:
+    __slots__ = ()
+
+    @staticmethod
+    def main():
+        print("Hello World")
+
+
+class python_internal_MethodClosure:
+    __slots__ = ("obj", "func")
+
+    def __init__(self,obj,func):
+        self.obj = obj
+        self.func = func
+
+    def __call__(self,*args):
+        return self.func(self.obj,*args)
+
+
+
+
+Main.main()
--- a/_testdata/Generated/inline.css
+++ b/_testdata/Generated/inline.css
@ -0,0 +1,2 @@
+.accordion{padding:0;margin:0;position:relative;list-style:none}.accordion>*{position:absolute;overflow:hidden;padding:0;margin:0}.accordion .accordion,.accordion.edge-visible,.accordion>*{-webkit-transition:.3s ease all;-moz-transition:.3s ease all;-o-transition:.3s ease all;transition:.3s ease all}.accordion,.accordion>*{will-change:height,transform;-webkit-perspective:90em;-moz-perspective:90em;perspective:90em;-webkit-backface-visibility:hidden;-moz-backface-visibility:hidden;backface-visibility:hidden;-webkit-transform:translate3d(0,0,0);-moz-transform:translate3d(0,0,0);-ms-transform:translateY(0);-o-transform:translate3d(0,0,0);transform:translate3d(0,0,0)}.snap.accordion .accordion,.snap.accordion>*{-webkit-transition:none!important;-moz-transition:none!important;-o-transition:none!important;transition:none!important}.accordion>*>:first-child{cursor:pointer;margin:0;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none}.accordion>*>:last-child{overflow:hidden;-webkit-transition:.3s ease height,.3s step-start visibility;-moz-transition:.3s ease height,.3s step-start visibility;-o-transition:.3s ease height,.3s step-start visibility;transition:.3s ease height,.3s step-start visibility}.accordion>.closed .accordion>.open>:last-child,.accordion>.closed>:last-child{-webkit-transition-timing-function:ease,step-end;-moz-transition-timing-function:ease,step-end;-o-transition-timing-function:ease,step-end;transition-timing-function:ease,step-end;visibility:hidden}
+/*# sourceMappingURL=data:application/json;charset=utf-8;base64,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 */
--- a/_testdata/Generated/inline.js
+++ b/_testdata/Generated/inline.js
@ -0,0 +1,13 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", { value: true });
+
+class Foo {
+	constructor(){
+		this.name = "Foo";
+	}
+}
+
+exports.Foo = Foo;
+
+//# sourceMappingURL=data:application/json;charset=utf-8;base64,eyJ2ZXJzaW9uIjozLCJmaWxlIjoiZXNtLmpzIiwic291cmNlcyI6WyJlc20ubWpzIl0sInNvdXJjZXNDb250ZW50IjpbImV4cG9ydCBjbGFzcyBGb28ge1xuXHRjb25zdHJ1Y3Rvcigpe1xuXHRcdHRoaXMubmFtZSA9IFwiRm9vXCI7XG5cdH1cbn07XG4iXSwibmFtZXMiOltdLCJtYXBwaW5ncyI6Ijs7OztBQUFPLE1BQU0sR0FBRyxDQUFDO0NBQ2hCLFdBQVcsRUFBRTtFQUNaLElBQUksQ0FBQyxJQUFJLEdBQUcsS0FBSyxDQUFDO0VBQ2xCO0NBQ0Q7Ozs7In0=
--- a/_testdata/Generated/linked.css
+++ b/_testdata/Generated/linked.css
@ -0,0 +1,2 @@
+.accordion{padding:0;margin:0;position:relative;list-style:none}.accordion>*{position:absolute;overflow:hidden;padding:0;margin:0}.accordion .accordion,.accordion.edge-visible,.accordion>*{-webkit-transition:.3s ease all;-moz-transition:.3s ease all;-o-transition:.3s ease all;transition:.3s ease all}.accordion,.accordion>*{will-change:height,transform;-webkit-perspective:90em;-moz-perspective:90em;perspective:90em;-webkit-backface-visibility:hidden;-moz-backface-visibility:hidden;backface-visibility:hidden;-webkit-transform:translate3d(0,0,0);-moz-transform:translate3d(0,0,0);-ms-transform:translateY(0);-o-transform:translate3d(0,0,0);transform:translate3d(0,0,0)}.snap.accordion .accordion,.snap.accordion>*{-webkit-transition:none!important;-moz-transition:none!important;-o-transition:none!important;transition:none!important}.accordion>*>:first-child{cursor:pointer;margin:0;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none}.accordion>*>:last-child{overflow:hidden;-webkit-transition:.3s ease height,.3s step-start visibility;-moz-transition:.3s ease height,.3s step-start visibility;-o-transition:.3s ease height,.3s step-start visibility;transition:.3s ease height,.3s step-start visibility}.accordion>.closed .accordion>.open>:last-child,.accordion>.closed>:last-child{-webkit-transition-timing-function:ease,step-end;-moz-transition-timing-function:ease,step-end;-o-transition-timing-function:ease,step-end;transition-timing-function:ease,step-end;visibility:hidden}
+/*# sourceMappingURL=linked.css.map */
--- a/_testdata/Generated/linked.css.map
+++ b/_testdata/Generated/linked.css.map
@ -0,0 +1 @@
+{"version":3,"sources":["accordion.css"],"names":[],"mappings":"AACA,WACC,QAAS,EACT,OAAS,EACT,SAAU,SACV,WAAY,KAEZ,aACC,SAAU,SACV,SAAU,OACV,QAAS,EACT,OAAS,EAIT,sBADA,wBADA,aAGC,mBAAoB,IAAI,KAAK,IAC7B,gBAAoB,IAAI,KAAK,IAC7B,cAAoB,IAAI,KAAK,IAC7B,WAAoB,IAAI,KAAK,IAI9B,WACA,aACC,YAAa,MAAM,CAAE,UACrB,oBAAqB,KACrB,iBAAqB,KACrB,YAAqB,KAErB,4BAA6B,OAC7B,yBAA6B,OAC7B,oBAA6B,OAE7B,kBAAoB,mBACpB,eAAoB,mBACpB,cAAoB,cACpB,aAAoB,mBACpB,UAAoB,mBAKrB,2BADA,kBAEC,mBAAoB,eACpB,gBAAoB,eACpB,cAAoB,eACpB,WAAoB,eAIrB,0BACC,OAAQ,QACR,OAAQ,EAER,oBAAqB,KACrB,iBAAqB,KACrB,gBAAqB,KACrB,YAAqB,KAItB,yBACC,SAAU,OACV,mBAAoB,IAAI,KAAK,MAAM,CAAE,IAAI,WAAW,WACpD,gBAAoB,IAAI,KAAK,MAAM,CAAE,IAAI,WAAW,WACpD,cAAoB,IAAI,KAAK,MAAM,CAAE,IAAI,WAAW,WACpD,WAAoB,IAAI,KAAK,MAAM,CAAE,IAAI,WAAW,WAGpD,gDADA,+BAEC,mCAAoC,IAAI,CAAE,SAC1C,gCAAoC,IAAI,CAAE,SAC1C,8BAAoC,IAAI,CAAE,SAC1C,2BAAoC,IAAI,CAAE,SAC1C,WAAY"}
--- a/_testdata/Generated/options_main.inherited.yy
+++ b/_testdata/Generated/options_main.inherited.yy
@ -0,0 +1,7 @@
+1.0.0←ed6a955d-5826-4f98-a450-10b414266c27←ed6a955d-5826-4f98-a450-10b414266c27|{
+    "option_gameguid": "e429c80a-2ae4-494a-bee0-f7ed5e39ec9b"
+}←1225f6b0-ac20-43bd-a82e-be73fa0b6f4f|{
+    "targets": 461609314234257646
+}←7b2c4976-1e09-44e5-8256-c527145e03bb|{
+    "targets": 461609314234257646
+}
--- a/_testdata/Generated/ppport.h
+++ b/_testdata/Generated/ppport.h
@ -0,0 +1,30 @@
+#if 0
+<<'SKIP';
+#endif
+/*
+----------------------------------------------------------------------
+
+    ppport.h -- Perl/Pollution/Portability Version 3.36
+
+    Automatically created by Devel::PPPort running under perl 5.026002.
+
+    Do NOT edit this file directly! -- Edit PPPort_pm.PL and the
+    includes in parts/inc/ instead.
+
+    Use 'perldoc ppport.h' to view the documentation below.
+
+----------------------------------------------------------------------
+
+SKIP
+
+=pod
+
+=head1 NAME
+
+ppport.h - Perl/Pollution/Portability version 3.36
+
+=head1 SYNOPSIS
+
+  perl ppport.h [options] [source files]
+
+<< TRUNCATED >>
--- a/_testdata/HTML/attr-swapped.html
+++ b/_testdata/HTML/attr-swapped.html
@ -0,0 +1,8 @@
+<!DOCTYPE html>
+<html>
+<head>
+<meta
+content = "Org mode"
+name = "generator" >
+</head>
+</html>
--- a/_testdata/HTML/extra-attr.html
+++ b/_testdata/HTML/extra-attr.html
@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+<head>
+<meta
+	data-foo="Bar"
+	http-equiv="Content-Type: text/html; charset=UTF-8"
+	content = "Org mode"
+	id="Some wicked id"
+	wrong-content="whoops"
+	name = "generator" >
+</head>
+</html>
--- a/_testdata/HTML/extra-spaces.html
+++ b/_testdata/HTML/extra-spaces.html
@ -0,0 +1,6 @@
+<!DOCTYPE html>
+<html>
+<head>
+<meta name = "generator"   content = "Org mode" />
+</head>
+</html>
--- a/_testdata/HTML/extra-tags.html
+++ b/_testdata/HTML/extra-tags.html
@ -0,0 +1,7 @@
+<!DOCTYPE html>
+<html>
+<meta >
+<meta name="generator" content="something invalid">
+<meta name="generator" content="makeinfo 4.8"
+/>
+</html>
--- a/_testdata/HTML/grohtml.html
+++ b/_testdata/HTML/grohtml.html
@ -0,0 +1,21 @@
+<!-- Creator     : groff version 1.22.4 -->
+<!-- CreationDate: Tue Jul  2 20:06:41 2019 -->
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
+"http://www.w3.org/TR/html4/loose.dtd">
+<html>
+<head>
+<meta name="generator" content="groff -Thtml, see www.gnu.org">
+<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII">
+<meta name="Content-Style" content="text/css">
+<style type="text/css">
+       p       { margin-top: 0; margin-bottom: 0; vertical-align: top }
+       pre     { margin-top: 0; margin-bottom: 0; vertical-align: top }
+       table   { margin-top: 0; margin-bottom: 0; vertical-align: top }
+       h1      { text-align: center }
+</style>
+<title></title>
+</head>
+<body>
+... document truncated
+</body>
+</html>
--- a/_testdata/HTML/grohtml.xhtml
+++ b/_testdata/HTML/grohtml.xhtml
@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="us-ascii"?>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1 plus MathML 2.0//EN"
+ "http://www.w3.org/TR/MathML2/dtd/xhtml-math11-f.dtd"
+ [<!ENTITY mathml "http://www.w3.org/1998/Math/MathML">]>
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
+<head>
+<meta name="generator" content="groff -Txhtml, see www.gnu.org"/>
+<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII"/>
+<meta name="Content-Style" content="text/css"/>
+<style type="text/css">
+       .center { text-align: center }
+       .right  { text-align: right }
+       p       { margin-top: 0; margin-bottom: 0; vertical-align: top }
+       pre     { margin-top: 0; margin-bottom: 0; vertical-align: top }
+       table   { margin-top: 0; margin-bottom: 0; vertical-align: top }
+       h1      { text-align: center }
+</style>
+<!-- Creator     : groff version 1.22.4 -->
+<!-- CreationDate: Tue Jul  2 20:08:09 2019 -->
+<title></title>
+</head>
+<body>
+... truncated
+</body>
+</html>
--- a/_testdata/HTML/makeinfo.html
+++ b/_testdata/HTML/makeinfo.html
@ -0,0 +1,47 @@
+<html lang="en">
+<head>
+<title>Asm Mode - GNU Emacs Manual</title>
+<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+<meta name="description" content="GNU Emacs Manual">
+<meta name="generator" content="makeinfo 4.8">
+<link title="Top" rel="start" href="index.html#Top">
+<link rel="up" href="Programs.html#Programs" title="Programs">
+<link rel="prev" href="C-Modes.html#C-Modes" title="C Modes">
+<link rel="next" href="Fortran.html#Fortran" title="Fortran">
+<link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage">
+<!--
+This is the `GNU Emacs Manual',
+updated for Emacs version {No value for `EMACSVER'}.
+
+Copyright (C) 1985--1987, 1993--2019 Free Software Foundation, Inc.
+
+     Permission is granted to copy, distribute and/or modify this
+     document under the terms of the GNU Free Documentation License,
+     Version 1.3 or any later version published by the Free Software
+     Foundation; with the Invariant Sections being ``The GNU
+     Manifesto,'' ``Distribution'' and ``GNU GENERAL PUBLIC LICENSE,''
+     with the Front-Cover Texts being ``A GNU Manual,'' and with the
+     Back-Cover Texts as in (a) below.  A copy of the license is
+     included in the section entitled ``GNU Free Documentation
+     License.''
+
+     (a) The FSF's Back-Cover Text is: ``You have the freedom to copy
+     and modify this GNU manual.  Buying copies from the FSF supports
+     it in developing GNU and promoting software freedom.''
+   -->
+<meta http-equiv="Content-Style-Type" content="text/css">
+<style type="text/css"><!--
+  pre.display { font-family:inherit }
+  pre.format  { font-family:inherit }
+  pre.smalldisplay { font-family:inherit; font-size:smaller }
+  pre.smallformat  { font-family:inherit; font-size:smaller }
+  pre.smallexample { font-size:smaller }
+  pre.smalllisp    { font-size:smaller }
+  span.sc    { font-variant:small-caps }
+  span.roman { font-family:serif; font-weight:normal; } 
+  span.sansserif { font-family:sans-serif; font-weight:normal; } 
+--></style>
+</head>
+<body>
+</body>
+</html>
--- a/_testdata/HTML/mandoc.html
+++ b/_testdata/HTML/mandoc.html
@ -0,0 +1,40 @@
+<!DOCTYPE html>
+<html>
+<!-- This is an automatically generated file.  Do not edit.
+  	$OpenBSD: mandoc.1,v 1.161 2019/02/23 18:52:45 schwarze Exp $
+  
+   Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
+   Copyright (c) 2012, 2014-2018 Ingo Schwarze <schwarze@openbsd.org>
+  
+   Permission to use, copy, modify, and distribute this software for any
+   purpose with or without fee is hereby granted, provided that the above
+   copyright notice and this permission notice appear in all copies.
+  
+   THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+   WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+   MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+   ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+   WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+   ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+   -->
+<head>
+  <meta charset="utf-8"/>
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+<TITLE>Quality/Complexity metric plugins</TITLE>
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+<BR>
+<B> Next:</B> <A NAME="tex2html1238"
+  HREF="node79.html">Time signal generator</A>
+<B> Up:</B> <A NAME="tex2html1234"
+  HREF="node74.html">Additional simulator components</A>
+<B> Previous:</B> <A NAME="tex2html1228"
+  HREF="node77.html">Weather scenario ()</A>
+ &nbsp; <B>  <A NAME="tex2html1236"
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+<BR>
+<BR>
+<!--End of Navigation Panel-->
+
+<H3><A NAME="SECTION000101400000000000000">
+Quality/Complexity metric plugins</A>
+</H3>
+Various plugins to measure schedule quality and problem complexity to suit the application.
+
+<P>
+<BR><HR>
+<ADDRESS>
+Steve Fraser
+2008-01-31
+</ADDRESS>
+</BODY>
+</HTML>
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+        {
+            "Key": "cc3b80a7-5d09-4bea-b9c8-b093f1b244c8",
+            "Value": {
+                "id": "ac219fd8-ba00-4bff-857c-93d7cdb409c8",
+                "resourcePath": "views\\cc3b80a7-5d09-4bea-b9c8-b093f1b244c8.yy",
+                "resourceType": "GMFolder"
+            }
+        },
+        {
+            "Key": "cc98d028-7bdd-4680-85f3-c87a7baa481e",
+            "Value": {
+                "id": "a84e7ce1-a928-4a86-bd79-8355f266e12e",
+                "resourcePath": "options\\windows\\options_windows.yy",
+                "resourceType": "GMWindowsOptions"
+            }
+        },
+        {
+            "Key": "d3e83dba-5be8-436f-866d-9a5a2120adb1",
+            "Value": {
+                "id": "ca2f0120-77ec-4bb4-8b0b-c12af28e2db0",
+                "resourcePath": "views\\d3e83dba-5be8-436f-866d-9a5a2120adb1.yy",
+                "resourceType": "GMFolder"
+            }
+        },
+        {
+            "Key": "d74cdac8-2717-46a5-a8ed-5f732e02a268",
+            "Value": {
+                "id": "3b26d2bb-6a56-4a30-9c5a-47c3bcc83bb9",
+                "resourcePath": "views\\d74cdac8-2717-46a5-a8ed-5f732e02a268.yy",
+                "resourceType": "GMFolder"
+            }
+        },
+        {
+            "Key": "e3e41b8b-b981-42ce-aab7-e6265764c7a8",
+            "Value": {
+                "id": "a24e4fd7-f4da-4da0-aff1-da1bb864c0b4",
+                "resourcePath": "views\\e3e41b8b-b981-42ce-aab7-e6265764c7a8.yy",
+                "resourceType": "GMFolder"
+            }
+        },
+        {
+            "Key": "f1fbb653-bca3-4725-9e81-6a3556760d0c",
+            "Value": {
+                "id": "76dcd643-64fe-49d6-83ff-e15184b56150",
+                "resourcePath": "objects\\obj_scout\\obj_scout.yy",
+                "resourceType": "GMObject"
+            }
+        },
+        {
+            "Key": "f418569b-3bdd-4706-a0e4-364317f54032",
+            "Value": {
+                "id": "1292899d-f280-4f75-93b4-b2ad6099dd3d",
+                "resourcePath": "options\\mac\\options_mac.yy",
+                "resourceType": "GMMacOptions"
+            }
+        },
+        {
+            "Key": "f48fa589-53e5-4ce0-a010-c16b38192e31",
+            "Value": {
+                "id": "e950beb0-3503-4c3d-9cb9-8743c91d7c94",
+                "resourcePath": "views\\f48fa589-53e5-4ce0-a010-c16b38192e31.yy",
+                "resourceType": "GMFolder"
+            }
+        },
+        {
+            "Key": "fd46d5b1-fe49-4ecf-b809-0a2449808fbe",
+            "Value": {
+                "id": "09d46108-701a-4592-906f-bcb479008507",
+                "resourcePath": "sprites\\spr_tree\\spr_tree.yy",
+                "resourceType": "GMSprite"
+            }
+        }
+    ],
+    "script_order": [
+        
+    ],
+    "tutorial": ""
+}
--- a/_testdata/Java/GrammarKit.java
+++ b/_testdata/Java/GrammarKit.java
@ -0,0 +1,625 @@
+// This is a generated file. Not intended for manual editing.
+package org.intellij.grammar.parser;
+
+import com.intellij.lang.PsiBuilder;
+import com.intellij.lang.PsiBuilder.Marker;
+import static org.intellij.grammar.psi.BnfTypes.*;
+import static org.intellij.grammar.parser.GeneratedParserUtilBase.*;
+import com.intellij.psi.tree.IElementType;
+import com.intellij.lang.ASTNode;
+import com.intellij.psi.tree.TokenSet;
+import com.intellij.lang.PsiParser;
+import com.intellij.lang.LightPsiParser;
+
+@SuppressWarnings({"SimplifiableIfStatement", "UnusedAssignment"})
+public class GrammarParser implements PsiParser, LightPsiParser {
+
+  public ASTNode parse(IElementType t, PsiBuilder b) {
+    parseLight(t, b);
+    return b.getTreeBuilt();
+  }
+
+  public void parseLight(IElementType t, PsiBuilder b) {
+    boolean r;
+    b = adapt_builder_(t, b, this, EXTENDS_SETS_);
+    Marker m = enter_section_(b, 0, _COLLAPSE_, null);
+    if (t == BNF_ATTR) {
+      r = attr(b, 0);
+    }
+    else if (t == BNF_ATTR_PATTERN) {
+      r = attr_pattern(b, 0);
+    }
+    else if (t == BNF_ATTR_VALUE) {
+      r = attr_value(b, 0);
+    }
+    else if (t == BNF_ATTRS) {
+      r = attrs(b, 0);
+    }
+    else if (t == BNF_CHOICE) {
+      r = choice(b, 0);
+    }
+    else if (t == BNF_EXPRESSION) {
+      r = expression(b, 0);
+    }
+    else if (t == BNF_LITERAL_EXPRESSION) {
+      r = literal_expression(b, 0);
+    }
+    else if (t == BNF_MODIFIER) {
+      r = modifier(b, 0);
+    }
+    else if (t == BNF_PAREN_EXPRESSION) {
+      r = paren_expression(b, 0);
+    }
+    else if (t == BNF_PREDICATE) {
+      r = predicate(b, 0);
+    }
+    else if (t == BNF_PREDICATE_SIGN) {
+      r = predicate_sign(b, 0);
+    }
+    else if (t == BNF_QUANTIFIED) {
+      r = quantified(b, 0);
+    }
+    else if (t == BNF_QUANTIFIER) {
+      r = quantifier(b, 0);
+    }
+    else if (t == BNF_REFERENCE_OR_TOKEN) {
+      r = reference_or_token(b, 0);
+    }
+    else if (t == BNF_RULE) {
+      r = rule(b, 0);
+    }
+    else if (t == BNF_SEQUENCE) {
+      r = sequence(b, 0);
+    }
+    else if (t == BNF_STRING_LITERAL_EXPRESSION) {
+      r = string_literal_expression(b, 0);
+    }
+    else {
+      r = parse_root_(t, b, 0);
+    }
+    exit_section_(b, 0, m, t, r, true, TRUE_CONDITION);
+  }
+
+  protected boolean parse_root_(IElementType t, PsiBuilder b, int l) {
+    return grammar(b, l + 1);
+  }
+
+  public static final TokenSet[] EXTENDS_SETS_ = new TokenSet[] {
+    create_token_set_(BNF_LITERAL_EXPRESSION, BNF_STRING_LITERAL_EXPRESSION),
+    create_token_set_(BNF_CHOICE, BNF_EXPRESSION, BNF_LITERAL_EXPRESSION, BNF_PAREN_EXPRESSION,
+      BNF_PREDICATE, BNF_QUANTIFIED, BNF_REFERENCE_OR_TOKEN, BNF_SEQUENCE,
+      BNF_STRING_LITERAL_EXPRESSION),
+  };
+
+  /* ********************************************************** */
+  // id attr_pattern? '=' attr_value ';'?
+  public static boolean attr(PsiBuilder b, int l) {
+    if (!recursion_guard_(b, l, "attr")) return false;
+    boolean r, p;
+    Marker m = enter_section_(b, l, _NONE_, "<attr>");
+    r = consumeToken(b, BNF_ID);
+    p = r; // pin = 1
+    r = r && report_error_(b, attr_1(b, l + 1));
+    r = p && report_error_(b, consumeToken(b, BNF_OP_EQ)) && r;
+    r = p && report_error_(b, attr_value(b, l + 1)) && r;
+    r = p && attr_4(b, l + 1) && r;
+    exit_section_(b, l, m, BNF_ATTR, r, p, attr_recover_until_parser_);
+    return r || p;
+  }
+
+  // attr_pattern?
+  private static boolean attr_1(PsiBuilder b, int l) {
+    if (!recursion_guard_(b, l, "attr_1")) return false;
+    attr_pattern(b, l + 1);
+    return true;
+  }
+
+  // ';'?
+  private static boolean attr_4(PsiBuilder b, int l) {
+    if (!recursion_guard_(b, l, "attr_4")) return false;
+    consumeToken(b, BNF_SEMICOLON);
+    return true;
+  }
+
+  /* ********************************************************** */
+  // '(' string ')'
+  public static boolean attr_pattern(PsiBuilder b, int l) {
+    if (!recursion_guard_(b, l, "attr_pattern")) return false;
+    if (!nextTokenIs(b, BNF_LEFT_PAREN)) return false;
+    boolean r;
+    Marker m = enter_section_(b);
+    r = consumeToken(b, BNF_LEFT_PAREN);
+    r = r && consumeToken(b, BNF_STRING);
+    r = r && consumeToken(b, BNF_RIGHT_PAREN);
+    exit_section_(b, m, BNF_ATTR_PATTERN, r);
+    return r;
+  }
+
+  /* ********************************************************** */
+  // !'}'
+  static boolean attr_recover_until(PsiBuilder b, int l) {
+    if (!recursion_guard_(b, l, "attr_recover_until")) return false;
+    boolean r;
+    Marker m = enter_section_(b, l, _NOT_, null);
+    r = !consumeToken(b, BNF_RIGHT_BRACE);
+    exit_section_(b, l, m, null, r, false, null);
+    return r;
+  }
+
+  /* ********************************************************** */
+  // (reference_or_token | literal_expression) !'='
+  public static boolean attr_value(PsiBuilder b, int l) {
+    if (!recursion_guard_(b, l, "attr_value")) return false;
+    boolean r;
+    Marker m = enter_section_(b, l, _NONE_, "<attr value>");
+    r = attr_value_0(b, l + 1);
+    r = r && attr_value_1(b, l + 1);
+    exit_section_(b, l, m, BNF_ATTR_VALUE, r, false, null);
+    return r;
+  }
+
+  // reference_or_token | literal_expression
+  private static boolean attr_value_0(PsiBuilder b, int l) {
+    if (!recursion_guard_(b, l, "attr_value_0")) return false;
+    boolean r;
+    Marker m = enter_section_(b);
+    r = reference_or_token(b, l + 1);
+    if (!r) r = literal_expression(b, l + 1);
+    exit_section_(b, m, null, r);
+    return r;
+  }
+
+  // !'='
+  private static boolean attr_value_1(PsiBuilder b, int l) {
+    if (!recursion_guard_(b, l, "attr_value_1")) return false;
+    boolean r;
+    Marker m = enter_section_(b, l, _NOT_, null);
+    r = !consumeToken(b, BNF_OP_EQ);
+    exit_section_(b, l, m, null, r, false, null);
+    return r;
+  }
+
+  /* ********************************************************** */
+  // '{' attr* '}'
+  public static boolean attrs(PsiBuilder b, int l) {
+    if (!recursion_guard_(b, l, "attrs")) return false;
+    if (!nextTokenIs(b, BNF_LEFT_BRACE)) return false;
+    boolean r, p;
+    Marker m = enter_section_(b, l, _NONE_, null);
+    r = consumeToken(b, BNF_LEFT_BRACE);
+    p = r; // pin = 1
+    r = r && report_error_(b, attrs_1(b, l + 1));
+    r = p && consumeToken(b, BNF_RIGHT_BRACE) && r;
+    exit_section_(b, l, m, BNF_ATTRS, r, p, null);
+    return r || p;
+  }
+
+  // attr*
+  private static boolean attrs_1(PsiBuilder b, int l) {
+    if (!recursion_guard_(b, l, "attrs_1")) return false;
+    int c = current_position_(b);
+    while (true) {
+      if (!attr(b, l + 1)) break;
+      if (!empty_element_parsed_guard_(b, "attrs_1", c)) break;
+      c = current_position_(b);
+    }
+    return true;
+  }
+
+  /* ********************************************************** */
+  // '{' sequence ('|' sequence)* '}' | sequence choice_tail*
+  public static boolean choice(PsiBuilder b, int l) {
+    if (!recursion_guard_(b, l, "choice")) return false;
+    boolean r;
+    Marker m = enter_section_(b, l, _COLLAPSE_, "<choice>");
+    r = choice_0(b, l + 1);
+    if (!r) r = choice_1(b, l + 1);
+    exit_section_(b, l, m, BNF_CHOICE, r, false, null);
+    return r;
+  }
+
+  // '{' sequence ('|' sequence)* '}'
+  private static boolean choice_0(PsiBuilder b, int l) {
+    if (!recursion_guard_(b, l, "choice_0")) return false;
+    boolean r;
+    Marker m = enter_section_(b);
+    r = consumeToken(b, BNF_LEFT_BRACE);
+    r = r && sequence(b, l + 1);
+    r = r && choice_0_2(b, l + 1);
+    r = r && consumeToken(b, BNF_RIGHT_BRACE);
+    exit_section_(b, m, null, r);
+    return r;
+  }
+
+  // ('|' sequence)*
+  private static boolean choice_0_2(PsiBuilder b, int l) {
+    if (!recursion_guard_(b, l, "choice_0_2")) return false;
+    int c = current_position_(b);
+    while (true) {
+      if (!choice_0_2_0(b, l + 1)) break;
+      if (!empty_element_parsed_guard_(b, "choice_0_2", c)) break;
+      c = current_position_(b);
+    }
+    return true;
+  }
+
+  // '|' sequence
+  private static boolean choice_0_2_0(PsiBuilder b, int l) {
+    if (!recursion_guard_(b, l, "choice_0_2_0")) return false;
+    boolean r;
+    Marker m = enter_section_(b);
+    r = consumeToken(b, BNF_OP_OR);
+    r = r && sequence(b, l + 1);
+    exit_section_(b, m, null, r);
+    return r;
+  }
+
+  // sequence choice_tail*
+  private static boolean choice_1(PsiBuilder b, int l) {
+    if (!recursion_guard_(b, l, "choice_1")) return false;
+    boolean r;
+    Marker m = enter_section_(b);
+    r = sequence(b, l + 1);
+    r = r && choice_1_1(b, l + 1);
+    exit_section_(b, m, null, r);
+    return r;
+  }
+
+  // choice_tail*
+  private static boolean choice_1_1(PsiBuilder b, int l) {
+    if (!recursion_guard_(b, l, "choice_1_1")) return false;
+    int c = current_position_(b);
+    while (true) {
+      if (!choice_tail(b, l + 1)) break;
+      if (!empty_element_parsed_guard_(b, "choice_1_1", c)) break;
+      c = current_position_(b);
+    }
+    return true;
+  }
+
+  /* ********************************************************** */
+  // '|' sequence
+  static boolean choice_tail(PsiBuilder b, int l) {
+    if (!recursion_guard_(b, l, "choice_tail")) return false;
+    if (!nextTokenIs(b, BNF_OP_OR)) return false;
+    boolean r, p;
+    Marker m = enter_section_(b, l, _NONE_, null);
+    r = consumeToken(b, BNF_OP_OR);
+    p = r; // pin = 1
+    r = r && sequence(b, l + 1);
+    exit_section_(b, l, m, null, r, p, null);
+    return r || p;
+  }
+
+  /* ********************************************************** */
+  // choice?
+  public static boolean expression(PsiBuilder b, int l) {
+    if (!recursion_guard_(b, l, "expression")) return false;
+    Marker m = enter_section_(b, l, _COLLAPSE_, "<expression>");
+    choice(b, l + 1);
+    exit_section_(b, l, m, BNF_EXPRESSION, true, false, null);
+    return true;
+  }
+
+  /* ********************************************************** */
+  // (attrs | rule) *
+  static boolean grammar(PsiBuilder b, int l) {
+    if (!recursion_guard_(b, l, "grammar")) return false;
+    int c = current_position_(b);
+    while (true) {
+      if (!grammar_0(b, l + 1)) break;
+      if (!empty_element_parsed_guard_(b, "grammar", c)) break;
+      c = current_position_(b);
+    }
+    return true;
+  }
+
+  // attrs | rule
+  private static boolean grammar_0(PsiBuilder b, int l) {
+    if (!recursion_guard_(b, l, "grammar_0")) return false;
+    boolean r;
+    Marker m = enter_section_(b);
+    r = attrs(b, l + 1);
+    if (!r) r = rule(b, l + 1);
+    exit_section_(b, m, null, r);
+    return r;
+  }
+
+  /* ********************************************************** */
+  // string_literal_expression | number
+  public static boolean literal_expression(PsiBuilder b, int l) {
+    if (!recursion_guard_(b, l, "literal_expression")) return false;
+    if (!nextTokenIs(b, "<literal expression>", BNF_NUMBER, BNF_STRING)) return false;
+    boolean r;
+    Marker m = enter_section_(b, l, _COLLAPSE_, "<literal expression>");
+    r = string_literal_expression(b, l + 1);
+    if (!r) r = consumeToken(b, BNF_NUMBER);
+    exit_section_(b, l, m, BNF_LITERAL_EXPRESSION, r, false, null);
+    return r;
+  }
+
+  /* ********************************************************** */
+  // 'private' | 'external' | 'wrapped'
+  public static boolean modifier(PsiBuilder b, int l) {
+    if (!recursion_guard_(b, l, "modifier")) return false;
+    boolean r;
+    Marker m = enter_section_(b, l, _NONE_, "<modifier>");
+    r = consumeToken(b, "private");
+    if (!r) r = consumeToken(b, "external");
+    if (!r) r = consumeToken(b, "wrapped");
+    exit_section_(b, l, m, BNF_MODIFIER, r, false, null);
+    return r;
+  }
+
+  /* ********************************************************** */
+  // quantified | predicate
+  static boolean option(PsiBuilder b, int l) {
+    if (!recursion_guard_(b, l, "option")) return false;
+    boolean r;
+    Marker m = enter_section_(b);
+    r = quantified(b, l + 1);
+    if (!r) r = predicate(b, l + 1);
+    exit_section_(b, m, null, r);
+    return r;
+  }
+
+  /* ********************************************************** */
+  // '(' expression ')'
+  public static boolean paren_expression(PsiBuilder b, int l) {
+    if (!recursion_guard_(b, l, "paren_expression")) return false;
+    if (!nextTokenIs(b, BNF_LEFT_PAREN)) return false;
+    boolean r, p;
+    Marker m = enter_section_(b, l, _NONE_, null);
+    r = consumeToken(b, BNF_LEFT_PAREN);
+    p = r; // pin = 1
+    r = r && report_error_(b, expression(b, l + 1));
+    r = p && consumeToken(b, BNF_RIGHT_PAREN) && r;
+    exit_section_(b, l, m, BNF_PAREN_EXPRESSION, r, p, null);
+    return r || p;
+  }
+
+  /* ********************************************************** */
+  // predicate_sign  simple
+  public static boolean predicate(PsiBuilder b, int l) {
+    if (!recursion_guard_(b, l, "predicate")) return false;
+    if (!nextTokenIs(b, "<predicate>", BNF_OP_NOT, BNF_OP_AND)) return false;
+    boolean r;
+    Marker m = enter_section_(b, l, _NONE_, "<predicate>");
+    r = predicate_sign(b, l + 1);
+    r = r && simple(b, l + 1);
+    exit_section_(b, l, m, BNF_PREDICATE, r, false, null);
+    return r;
+  }
+
+  /* ********************************************************** */
+  // '&' | '!'
+  public static boolean predicate_sign(PsiBuilder b, int l) {
+    if (!recursion_guard_(b, l, "predicate_sign")) return false;
+    if (!nextTokenIs(b, "<predicate sign>", BNF_OP_NOT, BNF_OP_AND)) return false;
+    boolean r;
+    Marker m = enter_section_(b, l, _NONE_, "<predicate sign>");
+    r = consumeToken(b, BNF_OP_AND);
+    if (!r) r = consumeToken(b, BNF_OP_NOT);
+    exit_section_(b, l, m, BNF_PREDICATE_SIGN, r, false, null);
+    return r;
+  }
+
+  /* ********************************************************** */
+  // '[' expression ']' | simple quantifier?
+  public static boolean quantified(PsiBuilder b, int l) {
+    if (!recursion_guard_(b, l, "quantified")) return false;
+    boolean r;
+    Marker m = enter_section_(b, l, _COLLAPSE_, "<quantified>");
+    r = quantified_0(b, l + 1);
+    if (!r) r = quantified_1(b, l + 1);
+    exit_section_(b, l, m, BNF_QUANTIFIED, r, false, null);
+    return r;
+  }
+
+  // '[' expression ']'
+  private static boolean quantified_0(PsiBuilder b, int l) {
+    if (!recursion_guard_(b, l, "quantified_0")) return false;
+    boolean r;
+    Marker m = enter_section_(b);
+    r = consumeToken(b, BNF_LEFT_BRACKET);
+    r = r && expression(b, l + 1);
+    r = r && consumeToken(b, BNF_RIGHT_BRACKET);
+    exit_section_(b, m, null, r);
+    return r;
+  }
+
+  // simple quantifier?
+  private static boolean quantified_1(PsiBuilder b, int l) {
+    if (!recursion_guard_(b, l, "quantified_1")) return false;
+    boolean r;
+    Marker m = enter_section_(b);
+    r = simple(b, l + 1);
+    r = r && quantified_1_1(b, l + 1);
+    exit_section_(b, m, null, r);
+    return r;
+  }
+
+  // quantifier?
+  private static boolean quantified_1_1(PsiBuilder b, int l) {
+    if (!recursion_guard_(b, l, "quantified_1_1")) return false;
+    quantifier(b, l + 1);
+    return true;
+  }
+
+  /* ********************************************************** */
+  // '?' | '+' | '*'
+  public static boolean quantifier(PsiBuilder b, int l) {
+    if (!recursion_guard_(b, l, "quantifier")) return false;
+    boolean r;
+    Marker m = enter_section_(b, l, _NONE_, "<quantifier>");
+    r = consumeToken(b, BNF_OP_OPT);
+    if (!r) r = consumeToken(b, BNF_OP_ONEMORE);
+    if (!r) r = consumeToken(b, BNF_OP_ZEROMORE);
+    exit_section_(b, l, m, BNF_QUANTIFIER, r, false, null);
+    return r;
+  }
+
+  /* ********************************************************** */
+  // id
+  public static boolean reference_or_token(PsiBuilder b, int l) {
+    if (!recursion_guard_(b, l, "reference_or_token")) return false;
+    if (!nextTokenIs(b, BNF_ID)) return false;
+    boolean r;
+    Marker m = enter_section_(b);
+    r = consumeToken(b, BNF_ID);
+    exit_section_(b, m, BNF_REFERENCE_OR_TOKEN, r);
+    return r;
+  }
+
+  /* ********************************************************** */
+  // modifier* id '::=' expression attrs? ';'?
+  public static boolean rule(PsiBuilder b, int l) {
+    if (!recursion_guard_(b, l, "rule")) return false;
+    boolean r, p;
+    Marker m = enter_section_(b, l, _NONE_, "<rule>");
+    r = rule_0(b, l + 1);
+    r = r && consumeToken(b, BNF_ID);
+    r = r && consumeToken(b, BNF_OP_IS);
+    p = r; // pin = 3
+    r = r && report_error_(b, expression(b, l + 1));
+    r = p && report_error_(b, rule_4(b, l + 1)) && r;
+    r = p && rule_5(b, l + 1) && r;
+    exit_section_(b, l, m, BNF_RULE, r, p, rule_recover_until_parser_);
+    return r || p;
+  }
+
+  // modifier*
+  private static boolean rule_0(PsiBuilder b, int l) {
+    if (!recursion_guard_(b, l, "rule_0")) return false;
+    int c = current_position_(b);
+    while (true) {
+      if (!modifier(b, l + 1)) break;
+      if (!empty_element_parsed_guard_(b, "rule_0", c)) break;
+      c = current_position_(b);
+    }
+    return true;
+  }
+
+  // attrs?
+  private static boolean rule_4(PsiBuilder b, int l) {
+    if (!recursion_guard_(b, l, "rule_4")) return false;
+    attrs(b, l + 1);
+    return true;
+  }
+
+  // ';'?
+  private static boolean rule_5(PsiBuilder b, int l) {
+    if (!recursion_guard_(b, l, "rule_5")) return false;
+    consumeToken(b, BNF_SEMICOLON);
+    return true;
+  }
+
+  /* ********************************************************** */
+  // !'{'
+  static boolean rule_recover_until(PsiBuilder b, int l) {
+    if (!recursion_guard_(b, l, "rule_recover_until")) return false;
+    boolean r;
+    Marker m = enter_section_(b, l, _NOT_, null);
+    r = !consumeToken(b, BNF_LEFT_BRACE);
+    exit_section_(b, l, m, null, r, false, null);
+    return r;
+  }
+
+  /* ********************************************************** */
+  // option +
+  public static boolean sequence(PsiBuilder b, int l) {
+    if (!recursion_guard_(b, l, "sequence")) return false;
+    boolean r;
+    Marker m = enter_section_(b, l, _COLLAPSE_, "<sequence>");
+    r = option(b, l + 1);
+    int c = current_position_(b);
+    while (r) {
+      if (!option(b, l + 1)) break;
+      if (!empty_element_parsed_guard_(b, "sequence", c)) break;
+      c = current_position_(b);
+    }
+    exit_section_(b, l, m, BNF_SEQUENCE, r, false, null);
+    return r;
+  }
+
+  /* ********************************************************** */
+  // !(modifier* id '::=' ) reference_or_token | literal_expression | paren_expression
+  static boolean simple(PsiBuilder b, int l) {
+    if (!recursion_guard_(b, l, "simple")) return false;
+    boolean r;
+    Marker m = enter_section_(b);
+    r = simple_0(b, l + 1);
+    if (!r) r = literal_expression(b, l + 1);
+    if (!r) r = paren_expression(b, l + 1);
+    exit_section_(b, m, null, r);
+    return r;
+  }
+
+  // !(modifier* id '::=' ) reference_or_token
+  private static boolean simple_0(PsiBuilder b, int l) {
+    if (!recursion_guard_(b, l, "simple_0")) return false;
+    boolean r;
+    Marker m = enter_section_(b);
+    r = simple_0_0(b, l + 1);
+    r = r && reference_or_token(b, l + 1);
+    exit_section_(b, m, null, r);
+    return r;
+  }
+
+  // !(modifier* id '::=' )
+  private static boolean simple_0_0(PsiBuilder b, int l) {
+    if (!recursion_guard_(b, l, "simple_0_0")) return false;
+    boolean r;
+    Marker m = enter_section_(b, l, _NOT_, null);
+    r = !simple_0_0_0(b, l + 1);
+    exit_section_(b, l, m, null, r, false, null);
+    return r;
+  }
+
+  // modifier* id '::='
+  private static boolean simple_0_0_0(PsiBuilder b, int l) {
+    if (!recursion_guard_(b, l, "simple_0_0_0")) return false;
+    boolean r;
+    Marker m = enter_section_(b);
+    r = simple_0_0_0_0(b, l + 1);
+    r = r && consumeToken(b, BNF_ID);
+    r = r && consumeToken(b, BNF_OP_IS);
+    exit_section_(b, m, null, r);
+    return r;
+  }
+
+  // modifier*
+  private static boolean simple_0_0_0_0(PsiBuilder b, int l) {
+    if (!recursion_guard_(b, l, "simple_0_0_0_0")) return false;
+    int c = current_position_(b);
+    while (true) {
+      if (!modifier(b, l + 1)) break;
+      if (!empty_element_parsed_guard_(b, "simple_0_0_0_0", c)) break;
+      c = current_position_(b);
+    }
+    return true;
+  }
+
+  /* ********************************************************** */
+  // string
+  public static boolean string_literal_expression(PsiBuilder b, int l) {
+    if (!recursion_guard_(b, l, "string_literal_expression")) return false;
+    if (!nextTokenIs(b, BNF_STRING)) return false;
+    boolean r;
+    Marker m = enter_section_(b);
+    r = consumeToken(b, BNF_STRING);
+    exit_section_(b, m, BNF_STRING_LITERAL_EXPRESSION, r);
+    return r;
+  }
+
+  final static Parser attr_recover_until_parser_ = new Parser() {
+    public boolean parse(PsiBuilder b, int l) {
+      return attr_recover_until(b, l + 1);
+    }
+  };
+  final static Parser rule_recover_until_parser_ = new Parser() {
+    public boolean parse(PsiBuilder b, int l) {
+      return rule_recover_until(b, l + 1);
+    }
+  };
+}
--- a/_testdata/Java/JFlexLexer.java
+++ b/_testdata/Java/JFlexLexer.java
@ -0,0 +1,482 @@
+/* The following code was generated by JFlex 1.4.3 on 28/01/16 11:27 */
+
+package test;
+import com.intellij.lexer.*;
+import com.intellij.psi.tree.IElementType;
+import static org.intellij.grammar.psi.BnfTypes.*;
+
+
+/**
+ * This class is a scanner generated by 
+ * <a href="http://www.jflex.de/">JFlex</a> 1.4.3
+ * on 28/01/16 11:27 from the specification file
+ * <tt>/home/abigail/code/intellij-grammar-kit-test/src/test/_GrammarLexer.flex</tt>
+ */
+public class _GrammarLexer implements FlexLexer {
+  /** initial size of the lookahead buffer */
+  private static final int ZZ_BUFFERSIZE = 16384;
+
+  /** lexical states */
+  public static final int YYINITIAL = 0;
+
+  /**
+   * ZZ_LEXSTATE[l] is the state in the DFA for the lexical state l
+   * ZZ_LEXSTATE[l+1] is the state in the DFA for the lexical state l
+   *                  at the beginning of a line
+   * l is of the form l = 2*k, k a non negative integer
+   */
+  private static final int ZZ_LEXSTATE[] = { 
+     0, 0
+  };
+
+  /** 
+   * Translates characters to character classes
+   */
+  private static final String ZZ_CMAP_PACKED = 
+    "\11\0\1\1\1\1\1\0\1\1\1\1\22\0\1\1\101\0\1\13"+
+    "\1\0\1\3\1\14\1\0\1\10\1\0\1\2\3\0\1\12\1\7"+
+    "\3\0\1\6\1\4\1\5\1\11\uff8a\0";
+
+  /** 
+   * Translates characters to character classes
+   */
+  private static final char [] ZZ_CMAP = zzUnpackCMap(ZZ_CMAP_PACKED);
+
+  /** 
+   * Translates DFA states to action switch labels.
+   */
+  private static final int [] ZZ_ACTION = zzUnpackAction();
+
+  private static final String ZZ_ACTION_PACKED_0 =
+    "\1\0\1\1\1\2\3\1\1\3\10\0\1\4\1\5";
+
+  private static int [] zzUnpackAction() {
+    int [] result = new int[17];
+    int offset = 0;
+    offset = zzUnpackAction(ZZ_ACTION_PACKED_0, offset, result);
+    return result;
+  }
+
+  private static int zzUnpackAction(String packed, int offset, int [] result) {
+    int i = 0;       /* index in packed string  */
+    int j = offset;  /* index in unpacked array */
+    int l = packed.length();
+    while (i < l) {
+      int count = packed.charAt(i++);
+      int value = packed.charAt(i++);
+      do result[j++] = value; while (--count > 0);
+    }
+    return j;
+  }
+
+
+  /** 
+   * Translates a state to a row index in the transition table
+   */
+  private static final int [] ZZ_ROWMAP = zzUnpackRowMap();
+
+  private static final String ZZ_ROWMAP_PACKED_0 =
+    "\0\0\0\15\0\32\0\47\0\64\0\101\0\15\0\116"+
+    "\0\133\0\150\0\165\0\202\0\217\0\234\0\251\0\15"+
+    "\0\15";
+
+  private static int [] zzUnpackRowMap() {
+    int [] result = new int[17];
+    int offset = 0;
+    offset = zzUnpackRowMap(ZZ_ROWMAP_PACKED_0, offset, result);
+    return result;
+  }
+
+  private static int zzUnpackRowMap(String packed, int offset, int [] result) {
+    int i = 0;  /* index in packed string  */
+    int j = offset;  /* index in unpacked array */
+    int l = packed.length();
+    while (i < l) {
+      int high = packed.charAt(i++) << 16;
+      result[j++] = high | packed.charAt(i++);
+    }
+    return j;
+  }
+
+  /** 
+   * The transition table of the DFA
+   */
+  private static final int [] ZZ_TRANS = zzUnpackTrans();
+
+  private static final String ZZ_TRANS_PACKED_0 =
+    "\1\2\1\3\1\4\1\2\1\5\2\2\1\6\5\2"+
+    "\16\0\1\3\16\0\1\7\16\0\1\10\20\0\1\11"+
+    "\11\0\1\12\20\0\1\13\4\0\1\14\25\0\1\15"+
+    "\10\0\1\16\21\0\1\17\10\0\1\20\12\0\1\21"+
+    "\6\0";
+
+  private static int [] zzUnpackTrans() {
+    int [] result = new int[182];
+    int offset = 0;
+    offset = zzUnpackTrans(ZZ_TRANS_PACKED_0, offset, result);
+    return result;
+  }
+
+  private static int zzUnpackTrans(String packed, int offset, int [] result) {
+    int i = 0;       /* index in packed string  */
+    int j = offset;  /* index in unpacked array */
+    int l = packed.length();
+    while (i < l) {
+      int count = packed.charAt(i++);
+      int value = packed.charAt(i++);
+      value--;
+      do result[j++] = value; while (--count > 0);
+    }
+    return j;
+  }
+
+
+  /* error codes */
+  private static final int ZZ_UNKNOWN_ERROR = 0;
+  private static final int ZZ_NO_MATCH = 1;
+  private static final int ZZ_PUSHBACK_2BIG = 2;
+  private static final char[] EMPTY_BUFFER = new char[0];
+  private static final int YYEOF = -1;
+  private static java.io.Reader zzReader = null; // Fake
+
+  /* error messages for the codes above */
+  private static final String ZZ_ERROR_MSG[] = {
+    "Unkown internal scanner error",
+    "Error: could not match input",
+    "Error: pushback value was too large"
+  };
+
+  /**
+   * ZZ_ATTRIBUTE[aState] contains the attributes of state <code>aState</code>
+   */
+  private static final int [] ZZ_ATTRIBUTE = zzUnpackAttribute();
+
+  private static final String ZZ_ATTRIBUTE_PACKED_0 =
+    "\1\0\1\11\4\1\1\11\10\0\2\11";
+
+  private static int [] zzUnpackAttribute() {
+    int [] result = new int[17];
+    int offset = 0;
+    offset = zzUnpackAttribute(ZZ_ATTRIBUTE_PACKED_0, offset, result);
+    return result;
+  }
+
+  private static int zzUnpackAttribute(String packed, int offset, int [] result) {
+    int i = 0;       /* index in packed string  */
+    int j = offset;  /* index in unpacked array */
+    int l = packed.length();
+    while (i < l) {
+      int count = packed.charAt(i++);
+      int value = packed.charAt(i++);
+      do result[j++] = value; while (--count > 0);
+    }
+    return j;
+  }
+
+  /** the current state of the DFA */
+  private int zzState;
+
+  /** the current lexical state */
+  private int zzLexicalState = YYINITIAL;
+
+  /** this buffer contains the current text to be matched and is
+      the source of the yytext() string */
+  private CharSequence zzBuffer = "";
+
+  /** this buffer may contains the current text array to be matched when it is cheap to acquire it */
+  private char[] zzBufferArray;
+
+  /** the textposition at the last accepting state */
+  private int zzMarkedPos;
+
+  /** the textposition at the last state to be included in yytext */
+  private int zzPushbackPos;
+
+  /** the current text position in the buffer */
+  private int zzCurrentPos;
+
+  /** startRead marks the beginning of the yytext() string in the buffer */
+  private int zzStartRead;
+
+  /** endRead marks the last character in the buffer, that has been read
+      from input */
+  private int zzEndRead;
+
+  /**
+   * zzAtBOL == true <=> the scanner is currently at the beginning of a line
+   */
+  private boolean zzAtBOL = true;
+
+  /** zzAtEOF == true <=> the scanner is at the EOF */
+  private boolean zzAtEOF;
+
+  /* user code: */
+  public _GrammarLexer() {
+    this((java.io.Reader)null);
+  }
+
+
+  /**
+   * Creates a new scanner
+   *
+   * @param   in  the java.io.Reader to read input from.
+   */
+  public _GrammarLexer(java.io.Reader in) {
+    this.zzReader = in;
+  }
+
+
+  /** 
+   * Unpacks the compressed character translation table.
+   *
+   * @param packed   the packed character translation table
+   * @return         the unpacked character translation table
+   */
+  private static char [] zzUnpackCMap(String packed) {
+    char [] map = new char[0x10000];
+    int i = 0;  /* index in packed string  */
+    int j = 0;  /* index in unpacked array */
+    while (i < 52) {
+      int  count = packed.charAt(i++);
+      char value = packed.charAt(i++);
+      do map[j++] = value; while (--count > 0);
+    }
+    return map;
+  }
+
+  public final int getTokenStart(){
+    return zzStartRead;
+  }
+
+  public final int getTokenEnd(){
+    return getTokenStart() + yylength();
+  }
+
+  public void reset(CharSequence buffer, int start, int end,int initialState){
+    zzBuffer = buffer;
+    zzBufferArray = com.intellij.util.text.CharArrayUtil.fromSequenceWithoutCopying(buffer);
+    zzCurrentPos = zzMarkedPos = zzStartRead = start;
+    zzPushbackPos = 0;
+    zzAtEOF  = false;
+    zzAtBOL = true;
+    zzEndRead = end;
+    yybegin(initialState);
+  }
+
+  /**
+   * Refills the input buffer.
+   *
+   * @return      <code>false</code>, iff there was new input.
+   *
+   * @exception   java.io.IOException  if any I/O-Error occurs
+   */
+  private boolean zzRefill() throws java.io.IOException {
+    return true;
+  }
+
+
+  /**
+   * Returns the current lexical state.
+   */
+  public final int yystate() {
+    return zzLexicalState;
+  }
+
+
+  /**
+   * Enters a new lexical state
+   *
+   * @param newState the new lexical state
+   */
+  public final void yybegin(int newState) {
+    zzLexicalState = newState;
+  }
+
+
+  /**
+   * Returns the text matched by the current regular expression.
+   */
+  public final CharSequence yytext() {
+    return zzBuffer.subSequence(zzStartRead, zzMarkedPos);
+  }
+
+
+  /**
+   * Returns the character at position <tt>pos</tt> from the
+   * matched text.
+   *
+   * It is equivalent to yytext().charAt(pos), but faster
+   *
+   * @param pos the position of the character to fetch.
+   *            A value from 0 to yylength()-1.
+   *
+   * @return the character at position pos
+   */
+  public final char yycharat(int pos) {
+    return zzBufferArray != null ? zzBufferArray[zzStartRead+pos]:zzBuffer.charAt(zzStartRead+pos);
+  }
+
+
+  /**
+   * Returns the length of the matched text region.
+   */
+  public final int yylength() {
+    return zzMarkedPos-zzStartRead;
+  }
+
+
+  /**
+   * Reports an error that occured while scanning.
+   *
+   * In a wellformed scanner (no or only correct usage of
+   * yypushback(int) and a match-all fallback rule) this method
+   * will only be called with things that "Can't Possibly Happen".
+   * If this method is called, something is seriously wrong
+   * (e.g. a JFlex bug producing a faulty scanner etc.).
+   *
+   * Usual syntax/scanner level error handling should be done
+   * in error fallback rules.
+   *
+   * @param   errorCode  the code of the errormessage to display
+   */
+  private void zzScanError(int errorCode) {
+    String message;
+    try {
+      message = ZZ_ERROR_MSG[errorCode];
+    }
+    catch (ArrayIndexOutOfBoundsException e) {
+      message = ZZ_ERROR_MSG[ZZ_UNKNOWN_ERROR];
+    }
+
+    throw new Error(message);
+  }
+
+
+  /**
+   * Pushes the specified amount of characters back into the input stream.
+   *
+   * They will be read again by then next call of the scanning method
+   *
+   * @param number  the number of characters to be read again.
+   *                This number must not be greater than yylength()!
+   */
+  public void yypushback(int number)  {
+    if ( number > yylength() )
+      zzScanError(ZZ_PUSHBACK_2BIG);
+
+    zzMarkedPos -= number;
+  }
+
+
+  /**
+   * Resumes scanning until the next regular expression is matched,
+   * the end of input is encountered or an I/O-Error occurs.
+   *
+   * @return      the next token
+   * @exception   java.io.IOException  if any I/O-Error occurs
+   */
+  public IElementType advance() throws java.io.IOException {
+    int zzInput;
+    int zzAction;
+
+    // cached fields:
+    int zzCurrentPosL;
+    int zzMarkedPosL;
+    int zzEndReadL = zzEndRead;
+    CharSequence zzBufferL = zzBuffer;
+    char[] zzBufferArrayL = zzBufferArray;
+    char [] zzCMapL = ZZ_CMAP;
+
+    int [] zzTransL = ZZ_TRANS;
+    int [] zzRowMapL = ZZ_ROWMAP;
+    int [] zzAttrL = ZZ_ATTRIBUTE;
+
+    while (true) {
+      zzMarkedPosL = zzMarkedPos;
+
+      zzAction = -1;
+
+      zzCurrentPosL = zzCurrentPos = zzStartRead = zzMarkedPosL;
+
+      zzState = ZZ_LEXSTATE[zzLexicalState];
+
+
+      zzForAction: {
+        while (true) {
+
+          if (zzCurrentPosL < zzEndReadL)
+            zzInput = (zzBufferArrayL != null ? zzBufferArrayL[zzCurrentPosL++] : zzBufferL.charAt(zzCurrentPosL++));
+          else if (zzAtEOF) {
+            zzInput = YYEOF;
+            break zzForAction;
+          }
+          else {
+            // store back cached positions
+            zzCurrentPos  = zzCurrentPosL;
+            zzMarkedPos   = zzMarkedPosL;
+            boolean eof = zzRefill();
+            // get translated positions and possibly new buffer
+            zzCurrentPosL  = zzCurrentPos;
+            zzMarkedPosL   = zzMarkedPos;
+            zzBufferL      = zzBuffer;
+            zzEndReadL     = zzEndRead;
+            if (eof) {
+              zzInput = YYEOF;
+              break zzForAction;
+            }
+            else {
+              zzInput = (zzBufferArrayL != null ? zzBufferArrayL[zzCurrentPosL++] : zzBufferL.charAt(zzCurrentPosL++));
+            }
+          }
+          int zzNext = zzTransL[ zzRowMapL[zzState] + zzCMapL[zzInput] ];
+          if (zzNext == -1) break zzForAction;
+          zzState = zzNext;
+
+          int zzAttributes = zzAttrL[zzState];
+          if ( (zzAttributes & 1) == 1 ) {
+            zzAction = zzState;
+            zzMarkedPosL = zzCurrentPosL;
+            if ( (zzAttributes & 8) == 8 ) break zzForAction;
+          }
+
+        }
+      }
+
+      // store back cached position
+      zzMarkedPos = zzMarkedPosL;
+
+      switch (zzAction < 0 ? zzAction : ZZ_ACTION[zzAction]) {
+        case 1: 
+          { return com.intellij.psi.TokenType.BAD_CHARACTER;
+          }
+        case 6: break;
+        case 4: 
+          { return BNF_STRING;
+          }
+        case 7: break;
+        case 5: 
+          { return BNF_NUMBER;
+          }
+        case 8: break;
+        case 3: 
+          { return BNF_ID;
+          }
+        case 9: break;
+        case 2: 
+          { return com.intellij.psi.TokenType.WHITE_SPACE;
+          }
+        case 10: break;
+        default:
+          if (zzInput == YYEOF && zzStartRead == zzCurrentPos) {
+            zzAtEOF = true;
+            return null;
+          }
+          else {
+            zzScanError(ZZ_NO_MATCH);
+          }
+      }
+    }
+  }
+
+
+}
--- a/_testdata/JavaScript/jquery-1.6.1.min.js
+++ b/_testdata/JavaScript/jquery-1.6.1.min.js
--- a/_testdata/JavaScript/namespace.js
+++ b/_testdata/JavaScript/namespace.js
@ -0,0 +1,93 @@
+(function(root, factory) {
+  if (typeof define === 'function' && define.amd) {
+    define(['lodash'], factory);
+  } else if (typeof exports !== 'undefined') {
+    module.exports = factory(require('lodash'));
+  } else {
+    root.Namespace = factory(root._);
+  }
+})(this, function(_) {
+  'use strict';
+
+  /**
+   * @module namespace
+   * @class namespace
+   */
+  function Namespace() {}
+  
+  /**
+   * Regex for splitting keypaths into arrays.
+   *
+   * @private
+   * @const {RegExp}
+   * @type
+   */
+  var KEYPATH_SPLITTER = /\./g;
+  
+  /**
+   * An internal cache to avoid calculating a keypath more than once.
+   *
+   * @private
+   * @type {Object}
+   */
+  var _keypaths = {};
+  
+  _.extend(Namespace.prototype, {
+  
+    /**
+     * Adds a definition to the namespace object.
+     *
+     * @public
+     * @instance
+     * @method add
+     * @param {String} keypath - The keypath for the definition to be added at.
+     * @param {Function|Object} definition - The definition to be added.
+     * @return {Function|Object} - The definition.
+     */
+    add: function(keypath, definition) {
+      return this._walk(keypath, function(memo, name, index, keypath) {
+        if (index + 1 === keypath.length) {
+          memo[name] = _.extend(definition, memo[name]);
+        }
+        return memo[name] || (memo[name] = {});
+      });
+    },
+  
+    /**
+     * Retrieves a definition from the namespace safely.
+     *
+     * @public
+     * @instance
+     * @method get
+     * @param {String} keypath - The keypath to lookup a definition for.
+     * @returns {Function|Object|undefined} - The definition if it exists, otherwise `undefined`.
+     */
+    get: function(keypath) {
+      return this._walk(keypath);
+    },
+  
+    /**
+     * An internal function for walking a keypath.
+     *
+     * @private
+     * @instance
+     * @method _walk
+     * @param {String} keypath - The keypath to walk through.
+     * @param {Function} [callback] - An optional callback to be called at each item in the path.
+     * @returns {function|Object|undefined} - The reduced keypath.
+     */
+    _walk: function(keypath, callback) {
+      return _.reduce(
+        _keypaths[keypath] || (_keypaths[keypath] = keypath.split(KEYPATH_SPLITTER)),
+        callback || function(memo, name) {
+          return memo && memo[name];
+        },
+        this
+      );
+    }
+  });
+  
+  return Namespace;
+});
+
+//# sourceMappingURL=namespace.js.map
--- a/_testdata/PostScript/lambda.pfa
+++ b/_testdata/PostScript/lambda.pfa
@ -0,0 +1,78 @@
+%!PS-AdobeFont-1.0: Greek_Lambda_Character-Regular 020.017
+%%Title: Greek_Lambda_Character-Regular
+%Version: 020.017
+%%CreationDate: Sun Jul 23 23:14:02 2017
+%%Creator: John Gardner /ThatGuyLinguistWatchersAreSickOf
+%Copyright: NONE. NADA. PUBLIC DOMAIN, BOI
+% Generated by FontForge 20170719 (http://fontforge.sf.net/)
+%%EndComments
+
+10 dict begin
+/FontType 1 def
+/FontMatrix [0.000488281 0 0 0.000488281 0 0 ]readonly def
+/FontName /Greek_Lambda_Character-Regular def
+/FontBBox {68 -362 1158 1556 }readonly def
+/PaintType 0 def
+/FontInfo 11 dict dup begin
+ /version (020.017) readonly def
+ /Notice (NONE. NADA. PUBLIC DOMAIN, BOI) readonly def
+ /FullName (Greek_Lambda_Character Regular) readonly def
+ /FamilyName (Greek_Lambda_Character) readonly def
+ /Weight (Regular) readonly def
+ /FSType 8 def
+ /ItalicAngle 0 def
+ /isFixedPitch false def
+ /UnderlinePosition -175 def
+ /UnderlineThickness 90 def
+ /ascent 1556 def
+end readonly def
+/Encoding 256 array
+ 0 1 255 { 1 index exch /.notdef put} for
+dup 13/uni000D put
+dup 32/space put
+readonly def
+currentdict end
+currentfile eexec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+0000000000000000000000000000000000000000000000000000000000000000
+0000000000000000000000000000000000000000000000000000000000000000
+0000000000000000000000000000000000000000000000000000000000000000
+0000000000000000000000000000000000000000000000000000000000000000
+0000000000000000000000000000000000000000000000000000000000000000
+0000000000000000000000000000000000000000000000000000000000000000
+0000000000000000000000000000000000000000000000000000000000000000
+0000000000000000000000000000000000000000000000000000000000000000
+cleartomark
--- a/_testdata/R/import.Rd
+++ b/_testdata/R/import.Rd
@ -0,0 +1,72 @@
+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/hello.R
+\name{import}
+\alias{import}
+\title{Import a module into the current scope}
+\usage{
+import(module, attach, attach_operators = TRUE)
+}
+\arguments{
+\item{module}{an identifier specifying the full module path}
+
+\item{attach}{if \code{TRUE}, attach the newly loaded module to the object
+search path (see \code{Details})}
+
+\item{attach_operators}{if \code{TRUE}, attach operators of module to the
+object search path, even if \code{attach} is \code{FALSE}}
+}
+\value{
+the loaded module environment (invisible)
+}
+\description{
+\code{module = import('module')} imports a specified module and makes its
+code available via the environment-like object it returns.
+}
+\details{
+Modules are loaded in an isolated environment which is returned, and
+optionally attached to the object search path of the current scope (if
+argument \code{attach} is \code{TRUE}).
+\code{attach} defaults to \code{FALSE}. However, in interactive code it is
+often helpful to attach packages by default. Therefore, in interactive code
+invoked directly from the terminal only (i.e. not within modules),
+\code{attach} defaults to the value of \code{options('import.attach')}, which
+can be set to \code{TRUE} or \code{FALSE} depending on the user’s preference.
+
+\code{attach_operators} causes \emph{operators} to be attached by default,
+because operators can only be invoked in R if they re found in the search
+path. Not attaching them therefore drastically limits a module’s usefulness.
+
+Modules are searched in the module search path \code{options('import.path')}.
+This is a vector of paths to consider, from the highest to the lowest
+priority. The current directory is \emph{always} considered first. That is,
+if a file \code{a.r} exists both in the current directory and in a module
+search path, the local file \code{./a.r} will be loaded.
+
+Module names can be fully qualified to refer to nested paths. See
+\code{Examples}.
+}
+\note{
+Unlike for packages, attaching happens \emph{locally}: if
+\code{import} is executed in the global environment, the effect is the same.
+Otherwise, the imported module is inserted as the parent of the current
+\code{environment()}. When used (globally) \emph{inside} a module, the newly
+imported module is only available inside the module’s search path, not
+outside it (nor in other modules which might be loaded).
+}
+\examples{
+# `a.r` is a file in the local directory containing a function `f`.
+a = import('a')
+a$f()
+
+# b/c.r is a file in path `b`, containing a function `g`.
+import('b/c', attach = TRUE)
+g() # No module name qualification necessary
+
+}
+\seealso{
+\code{unload}
+
+\code{reload}
+
+\code{module_name}
+}
--- a/common.go
+++ b/common.go
@ -328,15 +328,13 @@ func getInterpreter(data []byte) (interpreter string) {
 	return
 }

-func getFirstLine(data []byte) []byte {
-	buf := bufio.NewScanner(bytes.NewReader(data))
-	buf.Scan()
-	line := buf.Bytes()
-	if err := buf.Err(); err != nil {
-		return nil
+func getFirstLine(content []byte) []byte {
+	nlpos := bytes.IndexByte(content, '\n')
+	if nlpos < 0 {
+		return content
 	}

-	return line
+	return content[:nlpos]
 }

 func hasShebang(line []byte) bool {
--- a/data/generated.go
+++ b/data/generated.go
@ -0,0 +1,806 @@
+package data
+
+import (
+	"bytes"
+	"strings"
+
+	"github.com/go-enry/go-enry/v2/regex"
+)
+
+// GeneratedCodeExtensions contains all extensions that belong to generated
+// files for sure.
+var GeneratedCodeExtensions = map[string]struct{}{
+	// XCode files
+	".nib":             {},
+	".xcworkspacedata": {},
+	".xcuserstate":     {},
+}
+
+// GeneratedCodeNameMatcher is a function that tells whether the file with the
+// given name is generated.
+type GeneratedCodeNameMatcher func(string) bool
+
+func nameMatches(pattern string) GeneratedCodeNameMatcher {
+	r := regex.MustCompile(pattern)
+	return func(name string) bool {
+		return r.MatchString(name)
+	}
+}
+
+func nameContains(pattern string) GeneratedCodeNameMatcher {
+	return func(name string) bool {
+		return strings.Contains(name, pattern)
+	}
+}
+
+func nameEndsWith(pattern string) GeneratedCodeNameMatcher {
+	return func(name string) bool {
+		return strings.HasSuffix(name, pattern)
+	}
+}
+
+// GeneratedCodeNameMatchers are all the matchers that check whether the code
+// is generated based only on the file name.
+var GeneratedCodeNameMatchers = []GeneratedCodeNameMatcher{
+	// Cocoa pods
+	nameMatches(`(^Pods|\/Pods)\/`),
+
+	// Carthage build
+	nameMatches(`(^|\/)Carthage\/Build\/`),
+
+	// NET designer file
+	nameMatches(`(?i)\.designer\.(cs|vb)$`),
+
+	// Generated NET specflow feature file
+	nameEndsWith(".feature.cs"),
+
+	// Node modules
+	nameContains("node_modules/"),
+
+	// Go vendor
+	nameMatches(`vendor\/([-0-9A-Za-z]+\.)+(com|edu|gov|in|me|net|org|fm|io)`),
+
+	// Go lock
+	nameEndsWith("Gopkg.lock"),
+	nameEndsWith("glide.lock"),
+
+	// Esy lock
+	nameMatches(`(^|\/)(\w+\.)?esy.lock$`),
+
+	// NPM shrinkwrap
+	nameEndsWith("npm-shrinkwrap.json"),
+
+	// NPM package lock
+	nameEndsWith("package-lock.json"),
+
+	// Yarn plugnplay
+	nameMatches(`(^|\/)\.pnp\.(c|m)?js$`),
+
+	// Godeps
+	nameContains("Godeps/"),
+
+	// Composer lock
+	nameEndsWith("composer.lock"),
+
+	// Generated by zephir
+	nameMatches(`.\.zep\.(?:c|h|php)$`),
+
+	// Cargo lock
+	nameEndsWith("Cargo.lock"),
+
+	// Pipenv lock
+	nameEndsWith("Pipfile.lock"),
+
+	// GraphQL relay
+	nameContains("__generated__/"),
+}
+
+// GeneratedCodeMatcher checks whether the file with the given data is
+// generated code.
+type GeneratedCodeMatcher func(path, ext string, content []byte) bool
+
+// GeneratedCodeMatchers is the list of all generated code matchers that
+// rely on checking the content of the file to make the guess.
+var GeneratedCodeMatchers = []GeneratedCodeMatcher{
+	isMinifiedFile,
+	hasSourceMapReference,
+	isSourceMap,
+	isCompiledCoffeeScript,
+	isGeneratedNetDocfile,
+	isGeneratedJavaScriptPEGParser,
+	isGeneratedPostScript,
+	isGeneratedGo,
+	isGeneratedProtobuf,
+	isGeneratedJavaScriptProtocolBuffer,
+	isGeneratedApacheThrift,
+	isGeneratedJNIHeader,
+	isVCRCassette,
+	isCompiledCythonFile,
+	isGeneratedModule,
+	isGeneratedUnity3DMeta,
+	isGeneratedRacc,
+	isGeneratedJFlex,
+	isGeneratedGrammarKit,
+	isGeneratedRoxygen2,
+	isGeneratedJison,
+	isGeneratedGRPCCpp,
+	isGeneratedDart,
+	isGeneratedPerlPPPortHeader,
+	isGeneratedGameMakerStudio,
+	isGeneratedGimp,
+	isGeneratedVisualStudio6,
+	isGeneratedHaxe,
+	isGeneratedHTML,
+	isGeneratedJooq,
+}
+
+func canBeMinified(ext string) bool {
+	return ext == ".js" || ext == ".css"
+}
+
+// isMinifiedFile returns whether the file may be minified.
+// We consider a minified file any css or js file whose average number of chars
+// per line is more than 110.
+func isMinifiedFile(path, ext string, content []byte) bool {
+	if !canBeMinified(ext) {
+		return false
+	}
+
+	var chars, lines uint64
+	forEachLine(content, func(line []byte) {
+		chars += uint64(len(line))
+		lines++
+	})
+
+	if lines == 0 {
+		return false
+	}
+
+	return chars/lines > 110
+}
+
+var sourceMapRegex = regex.MustCompile(`^\/[*\/][\#@] source(?:Mapping)?URL|sourceURL=`)
+
+// hasSourceMapReference returns whether the file contains a reference to a
+// source-map file.
+func hasSourceMapReference(_ string, ext string, content []byte) bool {
+	if !canBeMinified(ext) {
+		return false
+	}
+
+	for _, line := range getLines(content, -2) {
+		if sourceMapRegex.Match(line) {
+			return true
+		}
+	}
+
+	return false
+}
+
+var sourceMapRegexps = []regex.EnryRegexp{
+	regex.MustCompile(`^{"version":\d+,`),
+	regex.MustCompile(`^\/\*\* Begin line maps\. \*\*\/{`),
+}
+
+// isSourceMap returns whether the file itself is a source map.
+func isSourceMap(path, _ string, content []byte) bool {
+	if strings.HasSuffix(path, ".js.map") || strings.HasSuffix(path, ".css.map") {
+		return true
+	}
+
+	firstLine := getLines(content, 1)[0]
+	for _, r := range sourceMapRegexps {
+		if r.Match(firstLine) {
+			return true
+		}
+	}
+
+	return false
+}
+
+func isCompiledCoffeeScript(path, ext string, content []byte) bool {
+	if ext != ".js" {
+		return false
+	}
+
+	firstLine := getLines(content, 1)[0]
+	lastLines := getLines(content, -2)
+
+	if string(firstLine) == "(function() {" &&
+		string(lastLines[1]) == "}).call(this);" &&
+		string(lastLines[0]) == "" {
+		score := 0
+
+		forEachLine(content, func(line []byte) {
+			if bytes.Contains(line, []byte("var ")) {
+				// Underscored temp vars are likely to be Coffee
+				score += 1 * countAppearancesInLine(line, "_fn", "_i", "_len", "_ref", "_results")
+
+				// bind and extend functions are very Coffee specific
+				score += 3 * countAppearancesInLine(line, "__bind", "__extends", "__hasProp", "__indexOf", "__slice")
+			}
+		})
+
+		// Require a score of 3. This is fairly abritrary. Consider tweaking later.
+		// See: https://github.com/github/linguist/blob/master/lib/linguist/generated.rb#L176-L213
+		return score >= 3
+	}
+
+	return false
+}
+
+func isGeneratedNetDocfile(_, ext string, content []byte) bool {
+	if ext != ".xml" {
+		return false
+	}
+
+	lines := bytes.Split(content, []byte{'\n'})
+	if len(lines) <= 3 {
+		return false
+	}
+
+	return bytes.Contains(lines[1], []byte("<doc>")) &&
+		bytes.Contains(lines[2], []byte("<assembly>")) &&
+		bytes.Contains(lines[len(lines)-2], []byte("</doc>"))
+}
+
+var pegJavaScriptGeneratedRegex = regex.MustCompile(`^(?:[^\/]|\/[^\*])*\/\*(?:[^\*]|\*[^\/])*Generated by PEG.js`)
+
+func isGeneratedJavaScriptPEGParser(_, ext string, content []byte) bool {
+	if ext != ".js" {
+		return false
+	}
+
+	// PEG.js-generated parsers include a comment near the top  of the file
+	// that marks them as such.
+	return pegJavaScriptGeneratedRegex.Match(bytes.Join(getLines(content, 5), []byte("")))
+}
+
+var postScriptType1And42Regex = regex.MustCompile(`(\n|\r\n|\r)\s*(?:currentfile eexec\s+|\/sfnts\s+\[)`)
+
+var postScriptRegexes = []regex.EnryRegexp{
+	regex.MustCompile(`[0-9]|draw|mpage|ImageMagick|inkscape|MATLAB`),
+	regex.MustCompile(`PCBNEW|pnmtops|\(Unknown\)|Serif Affinity|Filterimage -tops`),
+}
+
+func isGeneratedPostScript(_, ext string, content []byte) bool {
+	if ext != ".ps" && ext != ".eps" && ext != ".pfa" {
+		return false
+	}
+
+	// Type 1 and Type 42 fonts converted to PostScript are stored as hex-encoded byte streams; these
+	// streams are always preceded the `eexec` operator (if Type 1), or the `/sfnts` key (if Type 42).
+	if postScriptType1And42Regex.Match(content) {
+		return true
+	}
+
+	// We analyze the "%%Creator:" comment, which contains the author/generator
+	// of the file. If there is one, it should be in one of the first few lines.
+	var creator []byte
+	for _, line := range getLines(content, 10) {
+		if bytes.HasPrefix(line, []byte("%%Creator: ")) {
+			creator = line
+			break
+		}
+	}
+
+	if len(creator) == 0 {
+		return false
+	}
+
+	// EAGLE doesn't include a version number when it generates PostScript.
+	// However, it does prepend its name to the document's "%%Title" field.
+	if bytes.Contains(creator, []byte("EAGLE")) {
+		for _, line := range getLines(content, 5) {
+			if bytes.HasPrefix(line, []byte("%%Title: EAGLE Drawing ")) {
+				return true
+			}
+		}
+	}
+
+	// Most generators write their version number, while human authors' or companies'
+	// names don't contain numbers. So look if the line contains digits. Also
+	// look for some special cases without version numbers.
+	for _, r := range postScriptRegexes {
+		if r.Match(creator) {
+			return true
+		}
+	}
+
+	return false
+}
+
+func isGeneratedGo(_, ext string, content []byte) bool {
+	if ext != ".go" {
+		return false
+	}
+
+	lines := getLines(content, 40)
+	if len(lines) <= 1 {
+		return false
+	}
+
+	for _, line := range lines {
+		if bytes.Contains(line, []byte("Code generated by")) {
+			return true
+		}
+	}
+
+	return false
+}
+
+var protoExtensions = map[string]struct{}{
+	".py":   {},
+	".java": {},
+	".h":    {},
+	".cc":   {},
+	".cpp":  {},
+	".m":    {},
+	".rb":   {},
+	".php":  {},
+}
+
+func isGeneratedProtobuf(_, ext string, content []byte) bool {
+	if _, ok := protoExtensions[ext]; !ok {
+		return false
+	}
+
+	lines := getLines(content, 3)
+	if len(lines) <= 1 {
+		return false
+	}
+
+	for _, line := range lines {
+		if bytes.Contains(line, []byte("Generated by the protocol buffer compiler.  DO NOT EDIT!")) {
+			return true
+		}
+	}
+
+	return false
+}
+
+func isGeneratedJavaScriptProtocolBuffer(_, ext string, content []byte) bool {
+	if ext != ".js" {
+		return false
+	}
+
+	lines := getLines(content, 6)
+	if len(lines) < 6 {
+		return false
+	}
+
+	return bytes.Contains(lines[5], []byte("GENERATED CODE -- DO NOT EDIT!"))
+}
+
+var apacheThriftExtensions = map[string]struct{}{
+	".rb":   {},
+	".py":   {},
+	".go":   {},
+	".js":   {},
+	".m":    {},
+	".java": {},
+	".h":    {},
+	".cc":   {},
+	".cpp":  {},
+	".php":  {},
+}
+
+func isGeneratedApacheThrift(_, ext string, content []byte) bool {
+	if _, ok := apacheThriftExtensions[ext]; !ok {
+		return false
+	}
+
+	for _, line := range getLines(content, 6) {
+		if bytes.Contains(line, []byte("Autogenerated by Thrift Compiler")) {
+			return true
+		}
+	}
+
+	return false
+}
+
+func isGeneratedJNIHeader(_, ext string, content []byte) bool {
+	if ext != ".h" {
+		return false
+	}
+
+	lines := getLines(content, 2)
+	if len(lines) < 2 {
+		return false
+	}
+
+	return bytes.Contains(lines[0], []byte("/* DO NOT EDIT THIS FILE - it is machine generated */")) &&
+		bytes.Contains(lines[1], []byte("#include <jni.h>"))
+}
+
+func isVCRCassette(_, ext string, content []byte) bool {
+	if ext != ".yml" {
+		return false
+	}
+
+	lines := getLines(content, -2)
+	if len(lines) < 2 {
+		return false
+	}
+
+	return bytes.Contains(lines[1], []byte("recorded_with: VCR"))
+}
+
+func isCompiledCythonFile(_, ext string, content []byte) bool {
+	if ext != ".c" && ext != ".cpp" {
+		return false
+	}
+
+	lines := getLines(content, 1)
+	if len(lines) < 1 {
+		return false
+	}
+
+	return bytes.Contains(lines[0], []byte("Generated by Cython"))
+}
+
+func isGeneratedModule(_, ext string, content []byte) bool {
+	if ext != ".mod" {
+		return false
+	}
+
+	lines := getLines(content, 1)
+	if len(lines) < 1 {
+		return false
+	}
+
+	return bytes.Contains(lines[0], []byte("PCBNEW-LibModule-V")) ||
+		bytes.Contains(lines[0], []byte("GFORTRAN module version '"))
+}
+
+func isGeneratedUnity3DMeta(_, ext string, content []byte) bool {
+	if ext != ".meta" {
+		return false
+	}
+
+	lines := getLines(content, 1)
+	if len(lines) < 1 {
+		return false
+	}
+
+	return bytes.Contains(lines[0], []byte("fileFormatVersion: "))
+}
+
+func isGeneratedRacc(_, ext string, content []byte) bool {
+	if ext != ".rb" {
+		return false
+	}
+
+	lines := getLines(content, 3)
+	if len(lines) < 3 {
+		return false
+	}
+
+	return bytes.HasPrefix(lines[2], []byte("# This file is automatically generated by Racc"))
+}
+
+func isGeneratedJFlex(_, ext string, content []byte) bool {
+	if ext != ".java" {
+		return false
+	}
+
+	lines := getLines(content, 1)
+	if len(lines) < 1 {
+		return false
+	}
+
+	return bytes.HasPrefix(lines[0], []byte("/* The following code was generated by JFlex "))
+}
+
+func isGeneratedGrammarKit(_, ext string, content []byte) bool {
+	if ext != ".java" {
+		return false
+	}
+
+	lines := getLines(content, 1)
+	if len(lines) < 1 {
+		return false
+	}
+
+	return bytes.Contains(lines[0], []byte("// This is a generated file. Not intended for manual editing."))
+}
+
+func isGeneratedRoxygen2(_, ext string, content []byte) bool {
+	if ext != ".rd" {
+		return false
+	}
+
+	lines := getLines(content, 1)
+	if len(lines) < 1 {
+		return false
+	}
+
+	return bytes.Contains(lines[0], []byte("% Generated by roxygen2: do not edit by hand"))
+}
+
+func isGeneratedJison(_, ext string, content []byte) bool {
+	if ext != ".js" {
+		return false
+	}
+
+	lines := getLines(content, 1)
+	if len(lines) < 1 {
+		return false
+	}
+
+	return bytes.Contains(lines[0], []byte("/* parser generated by jison ")) ||
+		bytes.Contains(lines[0], []byte("/* generated by jison-lex "))
+}
+
+func isGeneratedGRPCCpp(_, ext string, content []byte) bool {
+	switch ext {
+	case ".cpp", ".hpp", ".h", ".cc":
+		lines := getLines(content, 1)
+		if len(lines) < 1 {
+			return false
+		}
+
+		return bytes.Contains(lines[0], []byte("// Generated by the gRPC"))
+	default:
+		return false
+	}
+}
+
+var dartRegex = regex.MustCompile(`generated code\W{2,3}do not modify`)
+
+func isGeneratedDart(_, ext string, content []byte) bool {
+	if ext != ".dart" {
+		return false
+	}
+
+	lines := getLines(content, 1)
+	if len(lines) < 1 {
+		return false
+	}
+
+	return dartRegex.Match(bytes.ToLower(lines[0]))
+}
+
+func isGeneratedPerlPPPortHeader(name, _ string, content []byte) bool {
+	if !strings.HasSuffix(name, "ppport.h") {
+		return false
+	}
+
+	lines := getLines(content, 10)
+	if len(lines) < 10 {
+		return false
+	}
+
+	return bytes.Contains(lines[8], []byte("Automatically created by Devel::PPPort"))
+}
+
+var (
+	gameMakerStudioFirstLineRegex = regex.MustCompile(`^\d\.\d\.\d.+\|\{`)
+	gameMakerStudioThirdLineRegex = regex.MustCompile(`\"modelName\"\:\s*\"GM`)
+)
+
+func isGeneratedGameMakerStudio(_, ext string, content []byte) bool {
+	if ext != ".yy" && ext != ".yyp" {
+		return false
+	}
+
+	lines := getLines(content, 3)
+	if len(lines) < 3 {
+		return false
+	}
+
+	return gameMakerStudioThirdLineRegex.Match(lines[2]) ||
+		gameMakerStudioFirstLineRegex.Match(lines[0])
+}
+
+var gimpRegexes = []regex.EnryRegexp{
+	regex.MustCompile(`\/\* GIMP [a-zA-Z0-9\- ]+ C\-Source image dump \(.+?\.c\) \*\/`),
+	regex.MustCompile(`\/\*  GIMP header image file format \([a-zA-Z0-9\- ]+\)\: .+?\.h  \*\/`),
+}
+
+func isGeneratedGimp(_, ext string, content []byte) bool {
+	if ext != ".c" && ext != ".h" {
+		return false
+	}
+
+	lines := getLines(content, 1)
+	if len(lines) < 1 {
+		return false
+	}
+
+	for _, r := range gimpRegexes {
+		if r.Match(lines[0]) {
+			return true
+		}
+	}
+
+	return false
+}
+
+func isGeneratedVisualStudio6(_, ext string, content []byte) bool {
+	if ext != ".dsp" {
+		return false
+	}
+
+	for _, l := range getLines(content, 3) {
+		if bytes.Contains(l, []byte("# Microsoft Developer Studio Generated Build File")) {
+			return true
+		}
+	}
+
+	return false
+}
+
+var haxeExtensions = map[string]struct{}{
+	".js":   {},
+	".py":   {},
+	".lua":  {},
+	".cpp":  {},
+	".h":    {},
+	".java": {},
+	".cs":   {},
+	".php":  {},
+}
+
+func isGeneratedHaxe(_, ext string, content []byte) bool {
+	if _, ok := haxeExtensions[ext]; !ok {
+		return false
+	}
+
+	for _, l := range getLines(content, 3) {
+		if bytes.Contains(l, []byte("Generated by Haxe")) {
+			return true
+		}
+	}
+
+	return false
+}
+
+var (
+	doxygenRegex         = regex.MustCompile(`<!--\s+Generated by Doxygen\s+[.0-9]+\s*-->`)
+	htmlMetaRegex        = regex.MustCompile(`<meta(\s+[^>]+)>`)
+	htmlMetaContentRegex = regex.MustCompile(`\s+(name|content|value)\s*=\s*("[^"]+"|'[^']+'|[^\s"']+)`)
+	orgModeMetaRegex     = regex.MustCompile(`org\s+mode`)
+)
+
+func isGeneratedHTML(_, ext string, content []byte) bool {
+	if ext != ".html" && ext != ".htm" && ext != ".xhtml" {
+		return false
+	}
+
+	lines := getLines(content, 30)
+
+	// Pkgdown
+	for _, l := range lines[:2] {
+		if bytes.Contains(l, []byte("<!-- Generated by pkgdown: do not edit by hand -->")) {
+			return true
+		}
+	}
+
+	// Mandoc
+	if len(lines) > 2 &&
+		bytes.HasPrefix(lines[2], []byte("<!-- This is an automatically generated file.")) {
+		return true
+	}
+
+	// Doxygen
+	for _, l := range lines {
+		if doxygenRegex.Match(l) {
+			return true
+		}
+	}
+
+	// HTML tag: <meta name="generator" content="" />
+	part := bytes.ToLower(bytes.Join(lines, []byte{' '}))
+	part = bytes.ReplaceAll(part, []byte{'\n'}, []byte{})
+	part = bytes.ReplaceAll(part, []byte{'\r'}, []byte{})
+	matches := htmlMetaRegex.FindAll(part, -1)
+	if len(matches) == 0 {
+		return false
+	}
+
+	for _, m := range matches {
+		var name, value, content string
+		ms := htmlMetaContentRegex.FindAllStringSubmatch(string(m), -1)
+		for _, m := range ms {
+			switch m[1] {
+			case "name":
+				name = m[2]
+			case "value":
+				value = m[2]
+			case "content":
+				content = m[2]
+			}
+		}
+
+		var val = value
+		if val == "" {
+			val = content
+		}
+
+		name = strings.Trim(name, `"'`)
+		val = strings.Trim(val, `"'`)
+
+		if name != "generator" || val == "" {
+			continue
+		}
+
+		if strings.Contains(val, "jlatex2html") ||
+			strings.Contains(val, "latex2html") ||
+			strings.Contains(val, "groff") ||
+			strings.Contains(val, "makeinfo") ||
+			strings.Contains(val, "texi2html") ||
+			strings.Contains(val, "ronn") ||
+			orgModeMetaRegex.MatchString(val) {
+			return true
+		}
+	}
+
+	return false
+}
+
+func isGeneratedJooq(_, ext string, content []byte) bool {
+	if ext != ".java" {
+		return false
+	}
+
+	for _, l := range getLines(content, 2) {
+		if bytes.Contains(l, []byte("This file is generated by jOOQ.")) {
+			return true
+		}
+	}
+
+	return false
+}
+
+// getLines returns up to the first n lines. A negative index will return up to
+// the last n lines in reverse order.
+func getLines(content []byte, n int) [][]byte {
+	var result [][]byte
+	if n < 0 {
+		for pos := len(content); pos > 0 && len(result) < -n; {
+			nlpos := bytes.LastIndexByte(content[:pos], '\n')
+			if nlpos+1 < len(content)-1 {
+				result = append(result, content[nlpos+1:pos])
+			}
+			pos = nlpos
+		}
+	} else {
+		for pos := 0; pos < len(content) && len(result) < n; {
+			nlpos := bytes.IndexByte(content[pos:], '\n')
+			if nlpos < 0 && pos < len(content) {
+				nlpos = len(content)
+			} else if nlpos >= 0 {
+				nlpos += pos
+			}
+
+			result = append(result, content[pos:nlpos])
+			pos = nlpos + 1
+		}
+	}
+
+	return result
+}
+
+func forEachLine(content []byte, cb func([]byte)) {
+	var pos int
+	for pos < len(content) {
+		nlpos := bytes.IndexByte(content[pos:], '\n')
+		if nlpos < 0 && pos < len(content) {
+			nlpos = len(content)
+		} else if nlpos >= 0 {
+			nlpos += pos
+		}
+
+		cb(content[pos:nlpos])
+		pos = nlpos + 1
+	}
+}
+
+func countAppearancesInLine(line []byte, targets ...string) int {
+	var count int
+	for _, t := range targets {
+		count += bytes.Count(line, []byte(t))
+	}
+	return count
+}
--- a/data/generated_test.go
+++ b/data/generated_test.go
@ -0,0 +1,50 @@
+package data
+
+import (
+	"fmt"
+	"strings"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestForEachLine(t *testing.T) {
+	const sample = "foo\nbar\nboomboom\nbleepbloop\n"
+	var lines = strings.Split(sample, "\n")
+
+	var result []string
+	forEachLine([]byte(sample), func(l []byte) {
+		result = append(result, string(l))
+	})
+
+	require.Equal(t, lines[:len(lines)-1], result)
+}
+
+func TestGetLines(t *testing.T) {
+	const sample = "foo\nbar\nboomboom\nbleepbloop\n"
+
+	testCases := []struct {
+		lines    int
+		expected []string
+	}{
+		{1, []string{"foo"}},
+		{2, []string{"foo", "bar"}},
+		{10, []string{"foo", "bar", "boomboom", "bleepbloop"}},
+		{-1, []string{"bleepbloop"}},
+		{-2, []string{"bleepbloop", "boomboom"}},
+		{-10, []string{"bleepbloop", "boomboom", "bar", "foo"}},
+	}
+
+	for _, tt := range testCases {
+		t.Run(fmt.Sprint(tt.lines), func(t *testing.T) {
+			lines := getLines([]byte(sample), tt.lines)
+
+			var result = make([]string, len(lines))
+			for i, l := range lines {
+				result[i] = string(l)
+			}
+
+			require.Equal(t, tt.expected, result)
+		})
+	}
+}
--- a/java/src/main/java/tech/sourced/enry/Enry.java
+++ b/java/src/main/java/tech/sourced/enry/Enry.java
@ -217,6 +217,17 @@ public class Enry {
        return toJavaBool(nativeLib.IsVendor(toGoString(path)));
    }

+    /**
+     * Reports whether the given file is a generated file.
+     *
+     * @param path of the file
+     * @param content of the file
+     * @return whether it's autogenerated or not
+     */
+    public static synchronized boolean isGenerated(String path, byte[] content) {
+        return toJavaBool(nativeLib.IsGenerated(toGoString(path), toGoByteSlice(content)));
+    }
+
    /**
     * Returns a color code for given language.
     *
--- a/python/enry.py
+++ b/python/enry.py
@ -51,6 +51,12 @@ def is_vendor(filename: str) -> bool:
    guess = lib.IsVendor(fName)
    return go_bool_to_py(guess)

+def is_generated(filename: str, content: bytes) -> bool:
+    fname, c_str = py_str_to_go(filename)
+    fcontent, c_bytes = py_bytes_to_go(content)
+    guess = lib.IsGenerated(fname, fcontent)
+    return go_bool_to_py(guess)
+

 ## Tests
 from collections import namedtuple
--- a/shared/enry.go
+++ b/shared/enry.go
@ -126,6 +126,11 @@ func IsVendor(path string) bool {
 	return enry.IsVendor(path)
 }

+//export IsGenerated
+func IsGenerated(path string, content []byte) bool {
+	return enry.IsGenerated(path, content)
+}
+
 //export GetColor
 func GetColor(language string) string {
 	return enry.GetColor(language)
--- a/utils.go
+++ b/utils.go
@ -11,8 +11,13 @@ import (

 const binSniffLen = 8000

-var configurationLanguages = map[string]bool{
-	"XML": true, "JSON": true, "TOML": true, "YAML": true, "INI": true, "SQL": true,
+var configurationLanguages = map[string]struct{}{
+	"XML":  {},
+	"JSON": {},
+	"TOML": {},
+	"YAML": {},
+	"INI":  {},
+	"SQL":  {},
 }

 // IsConfiguration tells if filename is in one of the configuration languages.
@ -102,3 +107,27 @@ func matchRegexSlice(exprs []regex.EnryRegexp, str string) bool {

 	return false
 }
+
+// IsGenerated returns whether the file with the given path and content is a
+// generated file.
+func IsGenerated(path string, content []byte) bool {
+	ext := strings.ToLower(filepath.Ext(path))
+	if _, ok := data.GeneratedCodeExtensions[ext]; ok {
+		return true
+	}
+
+	for _, m := range data.GeneratedCodeNameMatchers {
+		if m(path) {
+			return true
+		}
+	}
+
+	path = strings.ToLower(path)
+	for _, m := range data.GeneratedCodeMatchers {
+		if m(path, ext, content) {
+			return true
+		}
+	}
+
+	return false
+}
--- a/utils_test.go
+++ b/utils_test.go
@ -3,9 +3,12 @@ package enry
 import (
 	"bytes"
 	"fmt"
+	"io/ioutil"
+	"path/filepath"
 	"testing"

 	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
 )

 func TestIsVendor(t *testing.T) {
@ -192,3 +195,171 @@ func TestGetColor(t *testing.T) {
 		assert.Equal(t, test.expected, color, fmt.Sprintf("%v: is = %v, expected: %v", test.name, color, test.expected))
 	}
 }
+
+func TestIsGenerated(t *testing.T) {
+	testCases := []struct {
+		file      string
+		load      bool
+		generated bool
+	}{
+		// Xcode project files
+		{"Binary/MainMenu.nib", false, true},
+		{"Dummy/foo.xcworkspacedata", false, true},
+		{"Dummy/foo.xcuserstate", false, true},
+
+		//Cocoapods
+		{"Pods/Pods.xcodeproj", false, true},
+		{"Pods/SwiftDependency/foo.swift", false, true},
+		{"Pods/ObjCDependency/foo.h", false, true},
+		{"Pods/ObjCDependency/foo.m", false, true},
+		{"Dummy/Pods/Pods.xcodeproj", false, true},
+		{"Dummy/Pods/SwiftDependency/foo.swift", false, true},
+		{"Dummy/Pods/ObjCDependency/foo.h", false, true},
+		{"Dummy/Pods/ObjCDependency/foo.m", false, true},
+
+		//Carthage
+		{"Carthage/Build/.Dependency.version", false, true},
+		{"Carthage/Build/iOS/Dependency.framework", false, true},
+		{"Carthage/Build/Mac/Dependency.framework", false, true},
+		{"src/Carthage/Build/.Dependency.version", false, true},
+		{"src/Carthage/Build/iOS/Dependency.framework", false, true},
+		{"src/Carthage/Build/Mac/Dependency.framework", false, true},
+
+		//Go-specific vendored paths
+		{"go/vendor/github.com/foo.go", false, true},
+		{"go/vendor/golang.org/src/foo.c", false, true},
+		{"go/vendor/gopkg.in/some/nested/path/foo.go", false, true},
+
+		//.NET designer file
+		{"Dummy/foo.designer.cs", false, true},
+		{"Dummy/foo.Designer.cs", false, true},
+		{"Dummy/foo.designer.vb", false, true},
+		{"Dummy/foo.Designer.vb", false, true},
+
+		//Composer generated composer.lock file
+		{"JSON/composer.lock", false, true},
+
+		//Node modules
+		{"Dummy/node_modules/foo.js", false, true},
+
+		//npm shrinkwrap file
+		{"Dummy/npm-shrinkwrap.json", false, true},
+		{"Dummy/package-lock.json", false, true},
+		{"JavaScript/jquery-1.6.1.min.js", true, true},
+
+		//Yarn Plug'n'Play file
+		{".pnp.js", false, true},
+		{".pnp.cjs", false, true},
+		{".pnp.mjs", false, true},
+
+		//Godep saved dependencies
+		{"Godeps/Godeps.json", false, true},
+		{"Godeps/_workspace/src/github.com/kr/s3/sign.go", false, true},
+
+		//Generated by Zephir
+		{"C/exception.zep.c", false, true},
+		{"C/exception.zep.h", false, true},
+		{"PHP/exception.zep.php", false, true},
+
+		//Minified files
+		{"JavaScript/jquery-1.6.1.min.js", true, true},
+
+		//JavaScript with source-maps
+		{"JavaScript/namespace.js", true, true},
+		{"Generated/inline.js", true, true},
+
+		//CSS with source-maps
+		{"Generated/linked.css", true, true},
+		{"Generated/inline.css", true, true},
+
+		//Source-map
+		{"Data/bootstrap.css.map", true, true},
+		{"Generated/linked.css.map", true, true},
+		{"Data/sourcemap.v3.map", true, true},
+		{"Data/sourcemap.v1.map", true, true},
+
+		//Specflow
+		{"Features/BindingCulture.feature.cs", false, true},
+
+		//JFlex
+		{"Java/JFlexLexer.java", true, true},
+
+		//GrammarKit
+		{"Java/GrammarKit.java", true, true},
+
+		//roxygen2
+		{"R/import.Rd", true, true},
+
+		//PostScript
+		{"PostScript/lambda.pfa", true, true},
+
+		//Perl ppport.h
+		{"Generated/ppport.h", true, true},
+
+		//Graphql Relay
+		{"Javascript/__generated__/App_user.graphql.js", false, true},
+
+		//Game Maker Studio 2
+		{"JSON/GMS2_Project.yyp", true, true},
+		{"JSON/2ea73365-b6f1-4bd1-a454-d57a67e50684.yy", true, true},
+		{"Generated/options_main.inherited.yy", true, true},
+
+		//Pipenv
+		{"Dummy/Pipfile.lock", false, true},
+
+		//HTML
+		{"HTML/attr-swapped.html", true, true},
+		{"HTML/extra-attr.html", true, true},
+		{"HTML/extra-spaces.html", true, true},
+		{"HTML/extra-tags.html", true, true},
+		{"HTML/grohtml.html", true, true},
+		{"HTML/grohtml.xhtml", true, true},
+		{"HTML/makeinfo.html", true, true},
+		{"HTML/mandoc.html", true, true},
+		{"HTML/node78.html", true, true},
+		{"HTML/org-mode.html", true, true},
+		{"HTML/quotes-double.html", true, true},
+		{"HTML/quotes-none.html", true, true},
+		{"HTML/quotes-single.html", true, true},
+		{"HTML/uppercase.html", true, true},
+		{"HTML/ronn.html", true, true},
+		{"HTML/unknown.html", true, false},
+		{"HTML/no-content.html", true, false},
+		{"HTML/pages.html", true, true},
+
+		//GIMP
+		{"C/image.c", true, true},
+		{"C/image.h", true, true},
+
+		//Haxe
+		{"Generated/Haxe/main.js", true, true},
+		{"Generated/Haxe/main.py", true, true},
+		{"Generated/Haxe/main.lua", true, true},
+		{"Generated/Haxe/Main.cpp", true, true},
+		{"Generated/Haxe/Main.h", true, true},
+		{"Generated/Haxe/Main.java", true, true},
+		{"Generated/Haxe/Main.cs", true, true},
+		{"Generated/Haxe/Main.php", true, true},
+	}
+
+	for _, tt := range testCases {
+		t.Run(tt.file, func(t *testing.T) {
+			var content []byte
+			if tt.load {
+				var err error
+				content, err = ioutil.ReadFile(filepath.Join("_testdata", tt.file))
+				require.NoError(t, err)
+			}
+
+			result := IsGenerated(tt.file, content)
+			require.Equal(t, tt.generated, result)
+		})
+	}
+}
+
+func TestFoo(t *testing.T) {
+	file := "HTML/uppercase.html"
+	content, err := ioutil.ReadFile("_testdata/" + file)
+	require.NoError(t, err)
+	require.True(t, IsGenerated(file, content))
+}
				`@ -0,0 +1 @@`
				`{"version":3,"file":"out.js","sourceRoot":"","sources":["foo.js","bar.js"],"sourcesContent":[null,null],"names":["src","maps","are","fun"],"mappings":"A,AAAB;;ABCDE;"}`
				`@ -0,0 +1 @@`
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