compiler: Add error output to the compiler

The `[a:-b]` syntax for index selection in arrays is valid in IDL and
matches the heuristic for Prolog. Update the Prolog heuristic to
exclude `[`.

.gitmodules

@@ -439,9 +439,6 @@
 [submodule "vendor/grammars/sublime-golo"]
 	path = vendor/grammars/sublime-golo
 	url = https://github.com/TypeUnsafe/sublime-golo
-[submodule "vendor/grammars/JSyntax"]
-	path = vendor/grammars/JSyntax
-	url = https://github.com/bcj/JSyntax
 [submodule "vendor/grammars/TXL"]
 	path = vendor/grammars/TXL
 	url = https://github.com/MikeHoffert/Sublime-Text-TXL-syntax
@@ -868,6 +865,9 @@
 [submodule "vendor/grammars/language-ballerina"]
 	path = vendor/grammars/language-ballerina
 	url = https://github.com/ballerinalang/plugin-vscode
+[submodule "vendor/grammars/language-yara"]
+	path = vendor/grammars/language-yara
+	url = https://github.com/blacktop/language-yara
 [submodule "vendor/grammars/language-ruby"]
 	path = vendor/grammars/language-ruby
 	url = https://github.com/atom/language-ruby
@@ -883,3 +883,15 @@
 [submodule "vendor/grammars/atom-language-julia"]
 	path = vendor/grammars/atom-language-julia
 	url = https://github.com/JuliaEditorSupport/atom-language-julia
+[submodule "vendor/grammars/language-cwl"]
+	path = vendor/grammars/language-cwl
+	url = https://github.com/manabuishii/language-cwl
+[submodule "vendor/grammars/Syntax-highlighting-for-PostCSS"]
+	path = vendor/grammars/Syntax-highlighting-for-PostCSS
+	url = https://github.com/hudochenkov/Syntax-highlighting-for-PostCSS
+[submodule "vendor/grammars/javadoc.tmbundle"]
+	path = vendor/grammars/javadoc.tmbundle
+	url = https://github.com/textmate/javadoc.tmbundle
+[submodule "vendor/grammars/JSyntax"]
+	path = vendor/grammars/JSyntax
+	url = https://github.com/tikkanz/JSyntax

CONTRIBUTING.md

@@ -93,6 +93,7 @@ Linguist is maintained with :heart: by:
 - **@BenEddy** (GitHub staff)
 - **@Caged** (GitHub staff)
 - **@grantr** (GitHub staff)
+- **@kivikakk** (GitHub staff)
 - **@larsbrinkhoff**
 - **@lildude** (GitHub staff)
 - **@pchaigno**

Rakefile

@@ -47,15 +47,10 @@ task :samples => :compile do
   File.write 'lib/linguist/samples.json', json
 end
 
-FLEX_MIN_VER = [2, 5, 39]
 task :flex do
-  if `flex -V` !~ /^flex (\d+)\.(\d+)\.(\d+)/
+  if `flex -V` !~ /^flex \d+\.\d+\.\d+/
     fail "flex not detected"
   end
-  maj, min, rev = $1.to_i, $2.to_i, $3.to_i
-  if maj < FLEX_MIN_VER[0] || (maj == FLEX_MIN_VER[0] && (min < FLEX_MIN_VER[1] || (min == FLEX_MIN_VER[1] && rev < FLEX_MIN_VER[2])))
-    fail "building linguist's lexer requires at least flex #{FLEX_MIN_VER.join(".")}"
-  end
   system "cd ext/linguist && flex tokenizer.l"
 end
 

ext/linguist/lex.linguist_yy.h

@@ -11,7 +11,7 @@
 #define FLEX_SCANNER
 #define YY_FLEX_MAJOR_VERSION 2
 #define YY_FLEX_MINOR_VERSION 5
-#define YY_FLEX_SUBMINOR_VERSION 39
+#define YY_FLEX_SUBMINOR_VERSION 35
 #if YY_FLEX_SUBMINOR_VERSION > 0
 #define FLEX_BETA
 #endif
@@ -49,6 +49,7 @@ typedef int16_t flex_int16_t;
 typedef uint16_t flex_uint16_t;
 typedef int32_t flex_int32_t;
 typedef uint32_t flex_uint32_t;
+typedef uint64_t flex_uint64_t;
 #else
 typedef signed char flex_int8_t;
 typedef short int flex_int16_t;
@@ -56,6 +57,7 @@ typedef int flex_int32_t;
 typedef unsigned char flex_uint8_t; 
 typedef unsigned short int flex_uint16_t;
 typedef unsigned int flex_uint32_t;
+#endif /* ! C99 */
 
 /* Limits of integral types. */
 #ifndef INT8_MIN
@@ -86,8 +88,6 @@ typedef unsigned int flex_uint32_t;
 #define UINT32_MAX             (4294967295U)
 #endif
 
-#endif /* ! C99 */
-
 #endif /* ! FLEXINT_H */
 
 #ifdef __cplusplus
@@ -130,15 +130,7 @@ typedef void* yyscan_t;
 
 /* Size of default input buffer. */
 #ifndef YY_BUF_SIZE
-#ifdef __ia64__
-/* On IA-64, the buffer size is 16k, not 8k.
- * Moreover, YY_BUF_SIZE is 2*YY_READ_BUF_SIZE in the general case.
- * Ditto for the __ia64__ case accordingly.
- */
-#define YY_BUF_SIZE 32768
-#else
 #define YY_BUF_SIZE 16384
-#endif /* __ia64__ */
 #endif
 
 #ifndef YY_TYPEDEF_YY_BUFFER_STATE
@@ -277,10 +269,6 @@ int linguist_yyget_lineno (yyscan_t yyscanner );
 
 void linguist_yyset_lineno (int line_number ,yyscan_t yyscanner );
 
-int linguist_yyget_column  (yyscan_t yyscanner );
-
-void linguist_yyset_column (int column_no ,yyscan_t yyscanner );
-
 /* Macros after this point can all be overridden by user definitions in
  * section 1.
  */
@@ -307,12 +295,7 @@ static int yy_flex_strlen (yyconst char * ,yyscan_t yyscanner);
 
 /* Amount of stuff to slurp up with each read. */
 #ifndef YY_READ_BUF_SIZE
-#ifdef __ia64__
-/* On IA-64, the buffer size is 16k, not 8k */
-#define YY_READ_BUF_SIZE 16384
-#else
 #define YY_READ_BUF_SIZE 8192
-#endif /* __ia64__ */
 #endif
 
 /* Number of entries by which start-condition stack grows. */
@@ -345,9 +328,9 @@ extern int linguist_yylex (yyscan_t yyscanner);
 #undef YY_DECL
 #endif
 
-#line 117 "tokenizer.l"
+#line 118 "tokenizer.l"
 
 
-#line 352 "lex.linguist_yy.h"
+#line 335 "lex.linguist_yy.h"
 #undef linguist_yyIN_HEADER
 #endif /* linguist_yyHEADER_H */

ext/linguist/linguist.c

@@ -2,6 +2,9 @@
 #include "linguist.h"
 #include "lex.linguist_yy.h"
 
+// Anything longer is unlikely to be useful.
+#define MAX_TOKEN_LEN 32
+
 int linguist_yywrap(yyscan_t yyscanner) {
 	return 1;
 }
@@ -32,19 +35,27 @@ static VALUE rb_tokenizer_extract_tokens(VALUE self, VALUE rb_data) {
 		case NO_ACTION:
 			break;
 		case REGULAR_TOKEN:
-			rb_ary_push(ary, rb_str_new2(extra.token));
+			len = strlen(extra.token);
+			if (len <= MAX_TOKEN_LEN)
+				rb_ary_push(ary, rb_str_new(extra.token, len));
 			free(extra.token);
 			break;
 		case SHEBANG_TOKEN:
-			s = rb_str_new2("SHEBANG#!");
+			len = strlen(extra.token);
-			rb_str_cat2(s, extra.token);
+			if (len <= MAX_TOKEN_LEN) {
-			rb_ary_push(ary, s);
+				s = rb_str_new2("SHEBANG#!");
+				rb_str_cat(s, extra.token, len);
+				rb_ary_push(ary, s);
+			}
 			free(extra.token);
 			break;
 		case SGML_TOKEN:
-			s = rb_str_new2(extra.token);
+			len = strlen(extra.token);
-			rb_str_cat2(s, ">");
+			if (len <= MAX_TOKEN_LEN) {
-			rb_ary_push(ary, s);
+				s = rb_str_new(extra.token, len);
+				rb_str_cat2(s, ">");
+				rb_ary_push(ary, s);
+			}
 			free(extra.token);
 			break;
 		}

ext/linguist/tokenizer.l

@@ -9,25 +9,25 @@
 
 #define eat_until_eol() do { \
     int c; \
-    while ((c = input(yyscanner)) != '\n' && c != EOF); \
+    while ((c = input(yyscanner)) != '\n' && c != EOF && c); \
-    if (c == EOF) \
+    if (c == EOF || !c) \
-      yyterminate(); \
+      return 0; \
   } while (0)
 
 #define eat_until_unescaped(q) do { \
     int c; \
-    while ((c = input(yyscanner)) != EOF) { \
+    while ((c = input(yyscanner)) != EOF && c) { \
       if (c == '\n') \
         break; \
       if (c == '\\') { \
         c = input(yyscanner); \
-        if (c == EOF) \
+        if (c == EOF || !c) \
-          yyterminate(); \
+          return 0; \
       } else if (c == q) \
         break; \
     } \
-    if (c == EOF) \
+    if (c == EOF || !c) \
-      yyterminate(); \
+      return 0; \
   } while (0)
 
 %}
@@ -84,7 +84,7 @@
 \"                                { eat_until_unescaped('"'); }
 '                                 { eat_until_unescaped('\''); }
 (0x[0-9a-fA-F]([0-9a-fA-F]|\.)*|[0-9]([0-9]|\.)*)([uU][lL]{0,2}|([eE][-+][0-9]*)?[fFlL]*) { /* nothing */ }
-\<[^ \t\n\r<>]+/>|" "[^<>\n]{0,2048}>               {
+\<[[:alnum:]_!./?-]+              {
     if (strcmp(yytext, "<!--") == 0) {
      BEGIN(xml_comment);
     } else {
@@ -93,8 +93,8 @@
       return 1;
     }
   }
-<sgml>[[:alnum:]_]+=/\"           { feed_token(strdup(yytext), REGULAR_TOKEN); input(yyscanner); eat_until_unescaped('"'); return 1; }
+<sgml>[[:alnum:]_]+=\"            { feed_token(strndup(yytext, strlen(yytext) - 1), REGULAR_TOKEN); eat_until_unescaped('"'); return 1; }
-<sgml>[[:alnum:]_]+=/'            { feed_token(strdup(yytext), REGULAR_TOKEN); input(yyscanner); eat_until_unescaped('\''); return 1; }
+<sgml>[[:alnum:]_]+='             { feed_token(strndup(yytext, strlen(yytext) - 1), REGULAR_TOKEN); eat_until_unescaped('\''); return 1; }
 <sgml>[[:alnum:]_]+=[[:alnum:]_]* { feed_token(strdup(yytext), REGULAR_TOKEN); *(strchr(yyextra->token, '=') + 1) = 0; return 1; }
 <sgml>[[:alnum:]_]+               { feed_token(strdup(yytext), REGULAR_TOKEN); return 1; }
 <sgml>\>                          { BEGIN(INITIAL); }

grammars.yml

@@ -1,4 +1,3 @@
----
 https://bitbucket.org/Clams/sublimesystemverilog/get/default.tar.gz:
 - source.systemverilog
 - source.ucfconstraints
@@ -128,6 +127,9 @@ vendor/grammars/SublimePuppet:
 - source.puppet
 vendor/grammars/SublimeXtend:
 - source.xtend
+vendor/grammars/Syntax-highlighting-for-PostCSS:
+- source.css.postcss.sugarss
+- source.postcss
 vendor/grammars/TLA:
 - source.tla
 vendor/grammars/TXL:
@@ -341,6 +343,8 @@ vendor/grammars/java.tmbundle:
 - source.java-properties
 - text.html.jsp
 - text.junit-test-report
+vendor/grammars/javadoc.tmbundle:
+- text.html.javadoc
 vendor/grammars/javascript-objective-j.tmbundle:
 - source.js.objj
 vendor/grammars/jflex.tmbundle:
@@ -387,6 +391,8 @@ vendor/grammars/language-csound:
 - source.csound-score
 vendor/grammars/language-css:
 - source.css
+vendor/grammars/language-cwl:
+- source.cwl
 vendor/grammars/language-emacs-lisp:
 - source.emacs.lisp
 vendor/grammars/language-fontforge:
@@ -501,6 +507,8 @@ vendor/grammars/language-yaml:
 - source.yaml
 vendor/grammars/language-yang:
 - source.yang
+vendor/grammars/language-yara:
+- source.yara
 vendor/grammars/latex.tmbundle:
 - text.bibtex
 - text.log.latex
@@ -567,7 +575,7 @@ vendor/grammars/opa.tmbundle:
 - source.opa
 vendor/grammars/openscad.tmbundle:
 - source.scad
-vendor/grammars/oz-tmbundle/Syntaxes/Oz.tmLanguage:
+vendor/grammars/oz-tmbundle:
 - source.oz
 vendor/grammars/parrot:
 - source.parrot.pir

lib/linguist/generated.rb

@@ -52,6 +52,8 @@ module Linguist
     # Return true or false
     def generated?
       xcode_file? ||
+      cocoapods? ||
+      carthage_build? ||
       generated_net_designer_file? ||
       generated_net_specflow_feature_file? ||
       composer_lock? ||
@@ -95,6 +97,20 @@ module Linguist
       ['.nib', '.xcworkspacedata', '.xcuserstate'].include?(extname)
     end
 
+    # Internal: Is the blob part of Pods/, which contains dependencies not meant for humans in pull requests.
+    #
+    # Returns true or false.
+    def cocoapods?
+      !!name.match(/(^Pods|\/Pods)\//)
+    end
+
+    # Internal: Is the blob part of Carthage/Build/, which contains dependencies not meant for humans in pull requests.
+    #
+    # Returns true or false.
+    def carthage_build?
+      !!name.match(/(^|\/)Carthage\/Build\//)
+    end
+
     # Internal: Is the blob minified files?
     #
     # Consider a file minified if the average line length is

lib/linguist/heuristics.rb

@@ -73,7 +73,6 @@ module Linguist
     end
 
     # Common heuristics
-    ObjectiveCRegex = /^\s*(@(interface|class|protocol|property|end|synchronised|selector|implementation)\b|#import\s+.+\.h[">])/
     CPlusPlusRegex = Regexp.union(
         /^\s*#\s*include <(cstdint|string|vector|map|list|array|bitset|queue|stack|forward_list|unordered_map|unordered_set|(i|o|io)stream)>/,
         /^\s*template\s*</,
@@ -82,6 +81,9 @@ module Linguist
         /^[ \t]*(class|(using[ \t]+)?namespace)\s+\w+/,
         /^[ \t]*(private|public|protected):$/,
         /std::\w+/)
+    ObjectiveCRegex = /^\s*(@(interface|class|protocol|property|end|synchronised|selector|implementation)\b|#import\s+.+\.h[">])/
+    Perl5Regex = /\buse\s+(?:strict\b|v?5\.)/
+    Perl6Regex = /^\s*(?:use\s+v6\b|\bmodule\b|\b(?:my\s+)?class\b)/
 
     disambiguate ".as" do |data|
       if /^\s*(package\s+[a-z0-9_\.]+|import\s+[a-zA-Z0-9_\.]+;|class\s+[A-Za-z0-9_]+\s+extends\s+[A-Za-z0-9_]+)/.match(data)
@@ -359,17 +361,17 @@ module Linguist
     disambiguate ".pl" do |data|
       if /^[^#]*:-/.match(data)
         Language["Prolog"]
-      elsif /use strict|use\s+v?5\./.match(data)
+      elsif Perl5Regex.match(data)
         Language["Perl"]
-      elsif /^(use v6|(my )?class|module)/.match(data)
+      elsif Perl6Regex.match(data)
         Language["Perl 6"]
       end
     end
 
     disambiguate ".pm" do |data|
-      if /\buse\s+(?:strict\b|v?5\.)/.match(data)
+      if Perl5Regex.match(data)
         Language["Perl"]
-      elsif /^\s*(?:use\s+v6\s*;|(?:\bmy\s+)?class|module)\b/.match(data)
+      elsif Perl6Regex.match(data)
         Language["Perl 6"]
       elsif /^\s*\/\* XPM \*\//.match(data)
         Language["XPM"]
@@ -377,7 +379,7 @@ module Linguist
     end
 
     disambiguate ".pro" do |data|
-      if /^[^#]+:-/.match(data)
+      if /^[^\[#]+:-/.match(data)
         Language["Prolog"]
       elsif data.include?("last_client=")
         Language["INI"]
@@ -459,12 +461,12 @@ module Linguist
     end
     
     disambiguate ".t" do |data|
-      if /^\s*%[ \t]+|^\s*var\s+\w+\s*:=\s*\w+/.match(data)
+      if Perl5Regex.match(data)
-        Language["Turing"]
-      elsif /^\s*(?:use\s+v6\s*;|\bmodule\b|\b(?:my\s+)?class\b)/.match(data)
-        Language["Perl 6"]
-      elsif /\buse\s+(?:strict\b|v?5\.)/.match(data)
         Language["Perl"]
+      elsif Perl6Regex.match(data)
+        Language["Perl 6"]
+      elsif /^\s*%[ \t]+|^\s*var\s+\w+\s*:=\s*\w+/.match(data)
+        Language["Turing"]
       end
     end
     

lib/linguist/language.rb

@@ -110,7 +110,7 @@ module Linguist
     # Returns the Language or nil if none was found.
     def self.find_by_name(name)
       return nil if !name.is_a?(String) || name.to_s.empty?
-      name && (@name_index[name.downcase] || @name_index[name.split(',').first.downcase])
+      name && (@name_index[name.downcase] || @name_index[name.split(',', 2).first.downcase])
     end
 
     # Public: Look up Language by one of its aliases.
@@ -125,7 +125,7 @@ module Linguist
     # Returns the Language or nil if none was found.
     def self.find_by_alias(name)
       return nil if !name.is_a?(String) || name.to_s.empty?
-      name && (@alias_index[name.downcase] || @alias_index[name.split(',').first.downcase])
+      name && (@alias_index[name.downcase] || @alias_index[name.split(',', 2).first.downcase])
     end
 
     # Public: Look up Languages by filename.
@@ -219,10 +219,7 @@ module Linguist
       lang = @index[name.downcase]
       return lang if lang
 
-      name = name.split(',').first
+      @index[name.split(',', 2).first.downcase]
-      return nil if name.to_s.empty?
-
-      @index[name.downcase]
     end
 
     # Public: A List of popular languages

lib/linguist/languages.yml

@@ -807,6 +807,19 @@ Common Lisp:
   codemirror_mode: commonlisp
   codemirror_mime_type: text/x-common-lisp
   language_id: 66
+Common Workflow Language:
+  alias: cwl
+  type: programming
+  ace_mode: yaml
+  codemirror_mode: yaml
+  codemirror_mime_type: text/x-yaml
+  extensions:
+  - ".cwl"
+  interpreters:
+  - cwl-runner
+  color: "#B5314C"
+  tm_scope: source.cwl
+  language_id: 988547172
 Component Pascal:
   type: programming
   color: "#B0CE4E"
@@ -1147,7 +1160,7 @@ Ecere Projects:
 Edje Data Collection:
   type: data
   extensions:
-   - ".edc"
+  - ".edc"
   tm_scope: source.json
   ace_mode: json
   codemirror_mode: javascript
@@ -2245,9 +2258,9 @@ Kotlin:
   language_id: 189
 LFE:
   type: programming
+  color: "#4C3023"
   extensions:
   - ".lfe"
-  group: Erlang
   tm_scope: source.lisp
   ace_mode: lisp
   codemirror_mode: commonlisp
@@ -3427,6 +3440,14 @@ Pony:
   tm_scope: source.pony
   ace_mode: text
   language_id: 290
+PostCSS:
+  type: markup
+  tm_scope: source.postcss
+  group: CSS
+  extensions:
+  - ".pcss"
+  ace_mode: text
+  language_id: 262764437
 PostScript:
   type: markup
   color: "#da291c"
@@ -3592,6 +3613,7 @@ Python:
   - ".gclient"
   - BUCK
   - BUILD
+  - BUILD.bazel
   - SConscript
   - SConstruct
   - Snakefile
@@ -4413,6 +4435,14 @@ Sublime Text Config:
   - ".sublime_metrics"
   - ".sublime_session"
   language_id: 423
+SugarSS:
+  type: markup
+  tm_scope: source.css.postcss.sugarss
+  group: CSS
+  extensions:
+  - ".sss"
+  ace_mode: text
+  language_id: 826404698
 SuperCollider:
   type: programming
   color: "#46390b"
@@ -5119,6 +5149,14 @@ YANG:
   tm_scope: source.yang
   ace_mode: text
   language_id: 408
+YARA:
+  type: data
+  ace_mode: text
+  extensions:
+  - ".yar"
+  - ".yara"
+  tm_scope: source.yara
+  language_id: 805122868
 Yacc:
   type: programming
   extensions:

lib/linguist/vendor.yml

@@ -19,9 +19,7 @@
 - (^|/)dist/
 
 # C deps
-#  https://github.com/joyent/node
 - ^deps/
-- ^tools/
 - (^|/)configure$
 - (^|/)config.guess$
 - (^|/)config.sub$
@@ -65,6 +63,7 @@
 
 # Font Awesome
 - (^|/)font-awesome\.(css|less|scss|styl)$
+- (^|/)font-awesome/.*\.(css|less|scss|styl)$
 
 # Foundation css
 - (^|/)foundation\.(css|less|scss|styl)$
@@ -242,10 +241,7 @@
 - \.imageset/
 
 # Carthage
-- ^Carthage/
+- (^|/)Carthage/
-
-# Cocoapods
-- ^Pods/
 
 # Sparkle
 - (^|/)Sparkle/

lib/linguist/version.rb

@@ -1,3 +1,3 @@
 module Linguist
-  VERSION = "5.3.2"
+  VERSION = "5.3.3"
 end

package.json

@@ -1,7 +0,0 @@
-{
-  "repository": "https://github.com/github/linguist",
-  "dependencies": {
-    "season": "~>5.4"
-  },
-  "license": "MIT"
-}

samples/Common Workflow Language/trunk-peak-score.cwl

@@ -0,0 +1,36 @@
+#!/usr/bin/env cwl-runner
+# Originally from
+# https://github.com/Duke-GCB/GGR-cwl/blob/54e897263a702ff1074c8ac814b4bf7205d140dd/utils/trunk-peak-score.cwl
+# Released under the MIT License:
+# https://github.com/Duke-GCB/GGR-cwl/blob/54e897263a702ff1074c8ac814b4bf7205d140dd/LICENSE
+# Converted to CWL v1.0 syntax using
+# https://github.com/common-workflow-language/cwl-upgrader
+# and polished by Michael R. Crusoe <mrc@commonwl.org>
+# All modifications also released under the MIT License
+cwlVersion: v1.0
+class: CommandLineTool
+doc: Trunk scores in ENCODE bed6+4 files
+
+hints:
+  DockerRequirement:
+    dockerPull: dukegcb/workflow-utils
+
+inputs:
+  peaks:
+    type: File
+  sep:
+    type: string
+    default: \t
+
+outputs:
+  trunked_scores_peaks:
+    type: stdout
+
+baseCommand: awk
+
+arguments:
+- -F $(inputs.sep)
+- BEGIN{OFS=FS}$5>1000{$5=1000}{print}
+- $(inputs.peaks.path)
+
+stdout: $(inputs.peaks.nameroot).trunked_scores$(inputs.peaks.nameext)

samples/PostCSS/sample.pcss

@@ -0,0 +1,13 @@
+@define-mixin size $size {
+  width: $size;
+}
+
+$big: 100px;
+
+/* Main block */
+.block {
+  &_logo {
+    background: inline("./logo.png");
+    @mixin size $big;
+  }
+}

samples/SugarSS/sample.sss

@@ -0,0 +1,10 @@
+@define-mixin size $size
+  width: $size
+
+$big: 100px
+
+// Main block
+.block
+  &_logo
+    background: inline("./logo.png")
+    @mixin size $big

samples/YARA/OfExample.yar

@@ -0,0 +1,23 @@
+rule OfExample2
+{
+    strings:
+        $foo1 = "foo1"
+        $foo2 = "foo2"
+        $foo3 = "foo3"
+
+    condition:
+        2 of ($foo*)  // equivalent to 2 of ($foo1,$foo2,$foo3)
+}
+
+rule OfExample3
+{
+    strings:
+        $foo1 = "foo1"
+        $foo2 = "foo2"
+
+        $bar1 = "bar1"
+        $bar2 = "bar2"
+
+    condition:
+        3 of ($foo*,$bar1,$bar2)
+}

samples/YARA/example.yara

@@ -0,0 +1,13 @@
+rule silent_banker : banker
+{
+    meta:
+        description = "This is just an example"
+        thread_level = 3
+        in_the_wild = true
+    strings:
+        $a = {6A 40 68 00 30 00 00 6A 14 8D 91}
+        $b = {8D 4D B0 2B C1 83 C0 27 99 6A 4E 59 F7 F9}
+        $c = "UVODFRYSIHLNWPEJXQZAKCBGMT"
+    condition:
+        $a or $b or $c
+}

samples/YARA/true.yar

@@ -0,0 +1 @@
+rule test { condition: true }

script/add-grammar

@@ -1,6 +1,7 @@
 #!/usr/bin/env ruby
 
 require "optparse"
+require "open3"
 
 ROOT = File.expand_path("../../", __FILE__)
 
@@ -42,6 +43,17 @@ def log(msg)
   puts msg if $verbose
 end
 
+def command(*args)
+  log "$ #{args.join(' ')}"
+  output, status = Open3.capture2e(*args)
+  if !status.success?
+    output.each_line do |line|
+      log "  > #{line}"
+    end
+    warn "Command failed. Aborting."
+    exit 1
+  end
+end
 
 usage = """Usage:
   #{$0} [-v|--verbose] [--replace grammar] url
@@ -51,12 +63,12 @@ Examples:
 """
 
 $replace = nil
-$verbose = false
+$verbose = true
 
 OptionParser.new do |opts|
   opts.banner = usage
-  opts.on("-v", "--verbose", "Print verbose feedback to STDOUT") do
+  opts.on("-q", "--quiet", "Do not print output unless there's a failure") do
-    $verbose = true
+    $verbose = false
   end
   opts.on("-rSUBMODULE", "--replace=SUBMODDULE", "Replace an existing grammar submodule.") do |name|
     $replace = name
@@ -82,23 +94,22 @@ Dir.chdir(ROOT)
 
 if repo_old
   log "Deregistering: #{repo_old}"
-  `git submodule deinit #{repo_old}`
+  command('git', 'submodule', 'deinit', repo_old)
-  `git rm -rf #{repo_old}`
+  command('git', 'rm', '-rf', repo_old)
-  `script/convert-grammars`
+  command('script/grammar-compiler', 'update', '-f')
 end
 
 log "Registering new submodule: #{repo_new}"
-`git submodule add -f #{https} #{repo_new}`
+command('git', 'submodule', 'add', '-f', https, repo_new)
-exit 1 if $?.exitstatus > 0
+command('script/grammar-compiler', 'add', repo_new)
-`script/convert-grammars --add #{repo_new}`
 
 log "Confirming license"
 if repo_old
-  `script/licensed`
+  command('script/licensed')
 else
-  `script/licensed --module "#{repo_new}"`
+  command('script/licensed', '--module', repo_new)
 end
 
 log "Updating grammar documentation in vendor/README.md"
-`bundle exec rake samples`
+command('bundle', 'exec', 'rake', 'samples')
-`script/list-grammars`
+command('script/list-grammars')

script/convert-grammars

@@ -1,319 +0,0 @@
-#!/usr/bin/env ruby
-
-require 'bundler/setup'
-require 'json'
-require 'net/http'
-require 'optparse'
-require 'plist'
-require 'set'
-require 'thread'
-require 'tmpdir'
-require 'uri'
-require 'yaml'
-
-ROOT = File.expand_path("../..", __FILE__)
-GRAMMARS_PATH = File.join(ROOT, "grammars")
-SOURCES_FILE = File.join(ROOT, "grammars.yml")
-CSONC = File.join(ROOT, "node_modules", ".bin", "csonc")
-
-$options = {
-  :add => false,
-  :install => true,
-  :output => SOURCES_FILE,
-  :remote => true,
-}
-
-class SingleFile
-  def initialize(path)
-    @path = path
-  end
-
-  def url
-    @path
-  end
-
-  def fetch(tmp_dir)
-    [@path]
-  end
-end
-
-class DirectoryPackage
-  def self.fetch(dir)
-    Dir["#{dir}/**/*"].select do |path|
-      case File.extname(path.downcase)
-      when '.plist'
-        path.split('/')[-2] == 'Syntaxes'
-      when '.tmlanguage', '.yaml-tmlanguage'
-        true
-      when '.cson', '.json'
-        path.split('/')[-2] == 'grammars'
-      else
-        false
-      end
-    end
-  end
-
-  def initialize(directory)
-    @directory = directory
-  end
-
-  def url
-    @directory
-  end
-
-  def fetch(tmp_dir)
-    self.class.fetch(File.join(ROOT, @directory))
-  end
-end
-
-class TarballPackage
-  def self.fetch(tmp_dir, url)
-    `curl --silent --location --max-time 30 --output "#{tmp_dir}/archive" "#{url}"`
-    raise "Failed to fetch GH package: #{url} #{$?.to_s}" unless $?.success?
-
-    output = File.join(tmp_dir, 'extracted')
-    Dir.mkdir(output)
-    `tar -C "#{output}" -xf "#{tmp_dir}/archive"`
-    raise "Failed to uncompress tarball: #{tmp_dir}/archive (from #{url}) #{$?.to_s}" unless $?.success?
-
-    DirectoryPackage.fetch(output)
-  end
-
-  attr_reader :url
-
-  def initialize(url)
-    @url = url
-  end
-
-  def fetch(tmp_dir)
-    self.class.fetch(tmp_dir, url)
-  end
-end
-
-class SingleGrammar
-  attr_reader :url
-
-  def initialize(url)
-    @url = url
-  end
-
-  def fetch(tmp_dir)
-    filename = File.join(tmp_dir, File.basename(url))
-    `curl --silent --location --max-time 10 --output "#{filename}" "#{url}"`
-    raise "Failed to fetch grammar: #{url}: #{$?.to_s}" unless $?.success?
-    [filename]
-  end
-end
-
-class SVNPackage
-  attr_reader :url
-
-  def initialize(url)
-    @url = url
-  end
-
-  def fetch(tmp_dir)
-    `svn export -q "#{url}/Syntaxes" "#{tmp_dir}/Syntaxes"`
-    raise "Failed to export SVN repository: #{url}: #{$?.to_s}" unless $?.success?
-    Dir["#{tmp_dir}/Syntaxes/*.{plist,tmLanguage,tmlanguage,YAML-tmLanguage}"]
-  end
-end
-
-class GitHubPackage
-  def self.parse_url(url)
-    url, ref = url.split("@", 2)
-    path = URI.parse(url).path.split('/')
-    [path[1], path[2].chomp('.git'), ref || "master"]
-  end
-
-  attr_reader :user
-  attr_reader :repo
-  attr_reader :ref
-
-  def initialize(url)
-    @user, @repo, @ref = self.class.parse_url(url)
-  end
-
-  def url
-    suffix = "@#{ref}" unless ref == "master"
-    "https://github.com/#{user}/#{repo}#{suffix}"
-  end
-
-  def fetch(tmp_dir)
-    url = "https://github.com/#{user}/#{repo}/archive/#{ref}.tar.gz"
-    TarballPackage.fetch(tmp_dir, url)
-  end
-end
-
-def load_grammar(path)
-  case File.extname(path.downcase)
-  when '.plist', '.tmlanguage'
-    Plist::parse_xml(path)
-  when '.yaml-tmlanguage'
-    content = File.read(path)
-    # Attempt to parse YAML file even if it has a YAML 1.2 header
-    if content.lines[0] =~ /^%YAML[ :]1\.2/
-      content = content.lines[1..-1].join
-    end
-    begin
-      YAML.load(content)
-    rescue Psych::SyntaxError => e
-      $stderr.puts "Failed to parse YAML grammar '#{path}'"
-    end
-  when '.cson'
-    cson = `"#{CSONC}" "#{path}"`
-    raise "Failed to convert CSON grammar '#{path}': #{$?.to_s}" unless $?.success?
-    JSON.parse(cson)
-  when '.json'
-    JSON.parse(File.read(path))
-  else
-    raise "Invalid document type #{path}"
-  end
-end
-
-def load_grammars(tmp_dir, source, all_scopes)
-  is_url = source.start_with?("http:", "https:")
-  return [] if is_url && !$options[:remote]
-  return [] if !is_url && !File.exist?(source)
-
-  p = if !is_url
-        if File.directory?(source)
-          DirectoryPackage.new(source)
-        else
-          SingleFile.new(source)
-        end
-      elsif source.end_with?('.tmLanguage', '.plist', '.YAML-tmLanguage')
-        SingleGrammar.new(source)
-      elsif source.start_with?('https://github.com')
-        GitHubPackage.new(source)
-      elsif source.start_with?('http://svn.textmate.org')
-        SVNPackage.new(source)
-      elsif source.end_with?('.tar.gz')
-        TarballPackage.new(source)
-      else
-        nil
-      end
-
-  raise "Unsupported source: #{source}" unless p
-
-  p.fetch(tmp_dir).map do |path|
-    grammar = load_grammar(path)
-    scope = grammar['scopeName'] || grammar['scope']
-
-    if all_scopes.key?(scope)
-      unless all_scopes[scope] == p.url
-        $stderr.puts "WARN: Duplicated scope #{scope}\n" +
-          "  Current package: #{p.url}\n" +
-          "  Previous package: #{all_scopes[scope]}"
-      end
-      next
-    end
-    all_scopes[scope] = p.url
-    grammar
-  end.compact
-end
-
-def install_grammars(grammars, path)
-  installed = []
-
-  grammars.each do |grammar|
-    scope = grammar['scopeName'] || grammar['scope']
-    File.write(File.join(GRAMMARS_PATH, "#{scope}.json"), JSON.pretty_generate(grammar))
-    installed << scope
-  end
-
-  $stderr.puts("OK #{path} (#{installed.join(', ')})")
-end
-
-def run_thread(queue, all_scopes)
-  Dir.mktmpdir do |tmpdir|
-    loop do
-      source, index = begin
-        queue.pop(true)
-      rescue ThreadError
-        # The queue is empty.
-        break
-      end
-
-      dir = "#{tmpdir}/#{index}"
-      Dir.mkdir(dir)
-
-      grammars = load_grammars(dir, source, all_scopes)
-      install_grammars(grammars, source) if $options[:install]
-    end
-  end
-end
-
-def generate_yaml(all_scopes, base)
-  yaml = all_scopes.each_with_object(base) do |(key,value),out|
-    out[value] ||= []
-    out[value] << key
-  end
-
-  yaml = Hash[yaml.sort]
-  yaml.each { |k, v| v.sort! }
-  yaml
-end
-
-def main(sources)
-  begin
-    Dir.mkdir(GRAMMARS_PATH)
-  rescue Errno::EEXIST
-  end
-
-  `npm install`
-
-  all_scopes = {}
-
-  if source = $options[:add]
-    Dir.mktmpdir do |tmpdir|
-      grammars = load_grammars(tmpdir, source, all_scopes)
-      install_grammars(grammars, source) if $options[:install]
-    end
-    generate_yaml(all_scopes, sources)
-  else
-    queue = Queue.new
-
-    sources.each do |url, scopes|
-      queue.push([url, queue.length])
-    end
-
-    threads = 8.times.map do
-      Thread.new { run_thread(queue, all_scopes) }
-    end
-    threads.each(&:join)
-    generate_yaml(all_scopes, {})
-  end
-end
-
-OptionParser.new do |opts|
-  opts.banner = "Usage: #{$0} [options]"
-
-  opts.on("--add GRAMMAR", "Add a new grammar. GRAMMAR may be a file path or URL.") do |a|
-    $options[:add] = a
-  end
-
-  opts.on("--[no-]install", "Install grammars into grammars/ directory.") do |i|
-    $options[:install] = i
-  end
-
-  opts.on("--output FILE", "Write output to FILE. Use - for stdout.") do |o|
-    $options[:output] = o == "-" ? $stdout : o
-  end
-
-  opts.on("--[no-]remote", "Download remote grammars.") do |r|
-    $options[:remote] = r
-  end
-end.parse!
-
-sources = File.open(SOURCES_FILE) do |file|
-  YAML.load(file)
-end
-
-yaml = main(sources)
-
-if $options[:output].is_a?(IO)
-  $options[:output].write(YAML.dump(yaml))
-else
-  File.write($options[:output], YAML.dump(yaml))
-end

script/grammar-compiler

@@ -0,0 +1,12 @@
+#!/bin/sh
+
+set -e
+cd "$(dirname "$0")/.."
+
+image="linguist/grammar-compiler:latest"
+mkdir -p grammars
+
+exec docker run --rm \
+    -u $(id -u $USER):$(id -g $USER) \
+    -v $PWD:/src/linguist \
+    -w /src/linguist $image "$@"

script/prune-grammars

@@ -1,60 +0,0 @@
-#!/usr/bin/env ruby
-
-require "bundler/setup"
-require "json"
-require "linguist"
-require "set"
-require "yaml"
-
-ROOT = File.expand_path("../../", __FILE__)
-
-def find_includes(json)
-  case json
-  when Hash
-    result = []
-    if inc = json["include"]
-      result << inc.split("#", 2).first unless inc.start_with?("#", "$")
-    end
-    result + json.values.flat_map { |v| find_includes(v) }
-  when Array
-    json.flat_map { |v| find_includes(v) }
-  else
-    []
-  end
-end
-
-def transitive_includes(scope, includes)
-  scopes = Set.new
-  queue = includes[scope] || []
-  while s = queue.shift
-    next if scopes.include?(s)
-    scopes << s
-    queue += includes[s] || []
-  end
-  scopes
-end
-
-includes = {}
-Dir[File.join(ROOT, "grammars/*.json")].each do |path|
-  scope = File.basename(path).sub(/\.json/, '')
-  json = JSON.load(File.read(path))
-  incs = find_includes(json)
-  next if incs.empty?
-  includes[scope] ||= []
-  includes[scope] += incs
-end
-
-yaml = YAML.load(File.read(File.join(ROOT, "grammars.yml")))
-language_scopes = Linguist::Language.all.map(&:tm_scope).to_set
-
-# The set of used scopes is the scopes for each language, plus all the scopes
-# they include, transitively.
-used_scopes = language_scopes + language_scopes.flat_map { |s| transitive_includes(s, includes).to_a }.to_set
-
-unused = yaml.reject { |repo, scopes| scopes.any? { |scope| used_scopes.include?(scope) } }
-
-puts "Unused grammar repos"
-puts unused.map { |repo, scopes| sprintf("%-100s %s", repo, scopes.join(", ")) }.sort.join("\n")
-
-yaml.delete_if { |k| unused.key?(k) }
-File.write(File.join(ROOT, "grammars.yml"), YAML.dump(yaml))

test/test_file_blob.rb

@@ -188,6 +188,17 @@ class TestFileBlob < Minitest::Test
     assert fixture_blob("Binary/MainMenu.nib").generated?
     assert !sample_blob("XML/project.pbxproj").generated?
 
+    # Cocoapods
+    assert sample_blob('Pods/blah').generated?
+    assert !sample_blob('My-Pods/blah').generated?
+
+    # Carthage
+    assert sample_blob('Carthage/Build/blah').generated?
+    assert !sample_blob('Carthage/blah').generated?
+    assert !sample_blob('Carthage/Checkout/blah').generated?
+    assert !sample_blob('My-Carthage/Build/blah').generated?
+    assert !sample_blob('My-Carthage/Build/blah').generated?
+
     # Gemfile.lock is NOT generated
     assert !sample_blob("Gemfile.lock").generated?
 
@@ -313,8 +324,6 @@ class TestFileBlob < Minitest::Test
     assert sample_blob("deps/http_parser/http_parser.c").vendored?
     assert sample_blob("deps/v8/src/v8.h").vendored?
 
-    assert sample_blob("tools/something/else.c").vendored?
-
     # Chart.js
     assert sample_blob("some/vendored/path/Chart.js").vendored?
     assert !sample_blob("some/vendored/path/chart.js").vendored?
@@ -490,9 +499,9 @@ class TestFileBlob < Minitest::Test
 
     # Carthage
     assert sample_blob('Carthage/blah').vendored?
-
+    assert sample_blob('iOS/Carthage/blah').vendored?
-    # Cocoapods
+    assert !sample_blob('My-Carthage/blah').vendored?
-    assert sample_blob('Pods/blah').vendored?
+    assert !sample_blob('iOS/My-Carthage/blah').vendored?
 
     # Html5shiv
     assert sample_blob("Scripts/html5shiv.js").vendored?

test/test_generated.rb

@@ -42,6 +42,24 @@ class TestGenerated < Minitest::Test
     generated_sample_without_loading_data("Dummy/foo.xcworkspacedata")
     generated_sample_without_loading_data("Dummy/foo.xcuserstate")
 
+    # Cocoapods
+    generated_sample_without_loading_data("Pods/Pods.xcodeproj")
+    generated_sample_without_loading_data("Pods/SwiftDependency/foo.swift")
+    generated_sample_without_loading_data("Pods/ObjCDependency/foo.h")
+    generated_sample_without_loading_data("Pods/ObjCDependency/foo.m")
+    generated_sample_without_loading_data("Dummy/Pods/Pods.xcodeproj")
+    generated_sample_without_loading_data("Dummy/Pods/SwiftDependency/foo.swift")
+    generated_sample_without_loading_data("Dummy/Pods/ObjCDependency/foo.h")
+    generated_sample_without_loading_data("Dummy/Pods/ObjCDependency/foo.m")
+
+    # Carthage
+    generated_sample_without_loading_data("Carthage/Build/.Dependency.version")
+    generated_sample_without_loading_data("Carthage/Build/iOS/Dependency.framework")
+    generated_sample_without_loading_data("Carthage/Build/Mac/Dependency.framework")
+    generated_sample_without_loading_data("src/Carthage/Build/.Dependency.version")
+    generated_sample_without_loading_data("src/Carthage/Build/iOS/Dependency.framework")
+    generated_sample_without_loading_data("src/Carthage/Build/Mac/Dependency.framework")
+
     # Go-specific vendored paths
     generated_sample_without_loading_data("go/vendor/github.com/foo.go")
     generated_sample_without_loading_data("go/vendor/golang.org/src/foo.c")

test/test_grammars.rb

@@ -94,19 +94,6 @@ class TestGrammars < Minitest::Test
     assert nonexistent_submodules.empty? && unlisted_submodules.empty?, message.sub(/\.\Z/, "")
   end
 
-  def test_local_scopes_are_in_sync
-    actual = YAML.load(`"#{File.join(ROOT, "script", "convert-grammars")}" --output - --no-install --no-remote`)
-    assert $?.success?, "script/convert-grammars failed"
-
-    # We're not checking remote grammars. That can take a long time and make CI
-    # flaky if network conditions are poor.
-    @grammars.delete_if { |k, v| k.start_with?("http:", "https:") }
-
-    @grammars.each do |k, v|
-      assert_equal v, actual[k], "The scopes listed for #{k} in grammars.yml don't match the scopes found in that repository"
-    end
-  end
-
   def test_readme_file_is_in_sync
     current_data = File.read("#{ROOT}/vendor/README.md").to_s.sub(/\A.+?<!--.+?-->\n/ms, "")
     updated_data = `script/list-grammars --print`

test/test_language.rb

@@ -470,5 +470,7 @@ class TestLanguage < Minitest::Test
 
   def test_non_crash_on_comma
     assert_nil Language[',']
+    assert_nil Language.find_by_name(',')
+    assert_nil Language.find_by_alias(',')
   end
 end

tools/grammars/.gitignore

@@ -0,0 +1 @@
+/vendor

tools/grammars/Dockerfile

@@ -0,0 +1,35 @@
+FROM golang:1.9.2
+
+RUN apt-get update
+RUN apt-get upgrade -y
+RUN apt-get install -y curl gnupg
+
+RUN curl -sL https://deb.nodesource.com/setup_6.x | bash -
+RUN apt-get install -y nodejs
+RUN npm install -g season
+
+RUN apt-get install -y cmake
+RUN cd /tmp && git clone https://github.com/vmg/pcre
+RUN mkdir -p /tmp/pcre/build && cd /tmp/pcre/build && \
+	cmake .. \
+		-DPCRE_SUPPORT_JIT=ON \
+		-DPCRE_SUPPORT_UTF=ON \
+		-DPCRE_SUPPORT_UNICODE_PROPERTIES=ON \
+		-DBUILD_SHARED_LIBS=OFF \
+		-DCMAKE_C_FLAGS="-fPIC $(EXTRA_PCRE_CFLAGS)" \
+		-DCMAKE_BUILD_TYPE=RelWithDebInfo \
+		-DPCRE_BUILD_PCRECPP=OFF \
+		-DPCRE_BUILD_PCREGREP=OFF \
+		-DPCRE_BUILD_TESTS=OFF \
+		-G "Unix Makefiles" && \
+    make && make install
+RUN rm -rf /tmp/pcre
+
+RUN go get -u github.com/golang/dep/cmd/dep
+WORKDIR /go/src/github.com/github/linguist/tools/grammars
+COPY . .
+
+RUN dep ensure
+RUN go install ./cmd/grammar-compiler
+
+ENTRYPOINT ["grammar-compiler"]

tools/grammars/Gopkg.lock

@@ -0,0 +1,51 @@
+# This file is autogenerated, do not edit; changes may be undone by the next 'dep ensure'.
+
+
+[[projects]]
+  branch = "master"
+  name = "github.com/golang/protobuf"
+  packages = ["proto"]
+  revision = "1e59b77b52bf8e4b449a57e6f79f21226d571845"
+
+[[projects]]
+  branch = "master"
+  name = "github.com/groob/plist"
+  packages = ["."]
+  revision = "7b367e0aa692e62a223e823f3288c0c00f519a36"
+
+[[projects]]
+  name = "github.com/mattn/go-runewidth"
+  packages = ["."]
+  revision = "9e777a8366cce605130a531d2cd6363d07ad7317"
+  version = "v0.0.2"
+
+[[projects]]
+  branch = "master"
+  name = "github.com/mitchellh/mapstructure"
+  packages = ["."]
+  revision = "06020f85339e21b2478f756a78e295255ffa4d6a"
+
+[[projects]]
+  name = "github.com/urfave/cli"
+  packages = ["."]
+  revision = "cfb38830724cc34fedffe9a2a29fb54fa9169cd1"
+  version = "v1.20.0"
+
+[[projects]]
+  name = "gopkg.in/cheggaaa/pb.v1"
+  packages = ["."]
+  revision = "657164d0228d6bebe316fdf725c69f131a50fb10"
+  version = "v1.0.18"
+
+[[projects]]
+  branch = "v2"
+  name = "gopkg.in/yaml.v2"
+  packages = ["."]
+  revision = "287cf08546ab5e7e37d55a84f7ed3fd1db036de5"
+
+[solve-meta]
+  analyzer-name = "dep"
+  analyzer-version = 1
+  inputs-digest = "ba2e3150d728692b49e3e2d652b6ea23db82777c340e0c432cd4af6f0eef9f55"
+  solver-name = "gps-cdcl"
+  solver-version = 1

tools/grammars/Gopkg.toml

@@ -0,0 +1,23 @@
+[[constraint]]
+  branch = "v2"
+  name = "gopkg.in/yaml.v2"
+
+[[constraint]]
+  branch = "master"
+  name = "github.com/groob/plist"
+
+[[constraint]]
+  branch = "master"
+  name = "github.com/golang/protobuf"
+
+[[constraint]]
+  branch = "master"
+  name = "github.com/mitchellh/mapstructure"
+
+[[constraint]]
+  name = "gopkg.in/cheggaaa/pb.v1"
+  version = "1.0.18"
+
+[[constraint]]
+  name = "github.com/urfave/cli"
+  version = "1.20.0"

tools/grammars/cmd/grammar-compiler/main.go

@@ -0,0 +1,120 @@
+package main
+
+import (
+	"os"
+
+	"github.com/github/linguist/tools/grammars/compiler"
+	"github.com/urfave/cli"
+)
+
+func cwd() string {
+	cwd, _ := os.Getwd()
+	return cwd
+}
+
+func wrap(err error) error {
+	return cli.NewExitError(err, 255)
+}
+
+func main() {
+	app := cli.NewApp()
+	app.Name = "Linguist Grammars Compiler"
+	app.Usage = "Compile user-submitted grammars and check them for errors"
+
+	app.Flags = []cli.Flag{
+		cli.StringFlag{
+			Name:  "linguist-path",
+			Value: cwd(),
+			Usage: "path to Linguist root",
+		},
+	}
+
+	app.Commands = []cli.Command{
+		{
+			Name:  "add",
+			Usage: "add a new grammar source",
+			Flags: []cli.Flag{
+				cli.BoolFlag{
+					Name:  "force, f",
+					Usage: "ignore compilation errors",
+				},
+			},
+			Action: func(c *cli.Context) error {
+				conv, err := compiler.NewConverter(c.String("linguist-path"))
+				if err != nil {
+					return wrap(err)
+				}
+				if err := conv.AddGrammar(c.Args().First()); err != nil {
+					if !c.Bool("force") {
+						return wrap(err)
+					}
+				}
+				if err := conv.WriteGrammarList(); err != nil {
+					return wrap(err)
+				}
+				return nil
+			},
+		},
+		{
+			Name:  "update",
+			Usage: "update grammars.yml with the contents of the grammars library",
+			Flags: []cli.Flag{
+				cli.BoolFlag{
+					Name:  "force, f",
+					Usage: "write grammars.yml even if grammars fail to compile",
+				},
+			},
+			Action: func(c *cli.Context) error {
+				conv, err := compiler.NewConverter(c.String("linguist-path"))
+				if err != nil {
+					return wrap(err)
+				}
+				if err := conv.ConvertGrammars(true); err != nil {
+					return wrap(err)
+				}
+				if err := conv.Report(); err != nil {
+					if !c.Bool("force") {
+						return wrap(err)
+					}
+				}
+				if err := conv.WriteGrammarList(); err != nil {
+					return wrap(err)
+				}
+				return nil
+			},
+		},
+		{
+			Name:  "compile",
+			Usage: "convert the grammars from the library",
+			Flags: []cli.Flag{
+				cli.StringFlag{Name: "proto-out, P"},
+				cli.StringFlag{Name: "out, o"},
+			},
+			Action: func(c *cli.Context) error {
+				conv, err := compiler.NewConverter(c.String("linguist-path"))
+				if err != nil {
+					return cli.NewExitError(err, 1)
+				}
+				if err := conv.ConvertGrammars(false); err != nil {
+					return cli.NewExitError(err, 1)
+				}
+				if out := c.String("proto-out"); out != "" {
+					if err := conv.WriteProto(out); err != nil {
+						return cli.NewExitError(err, 1)
+					}
+				}
+				if out := c.String("out"); out != "" {
+					if err := conv.WriteJSON(out); err != nil {
+						return cli.NewExitError(err, 1)
+					}
+				}
+				if err := conv.Report(); err != nil {
+					return wrap(err)
+				}
+				return nil
+			},
+		},
+	}
+
+	app.Run(os.Args)
+}

tools/grammars/compiler/converter.go

@@ -0,0 +1,261 @@
+package compiler
+
+import (
+	"encoding/json"
+	"fmt"
+	"io/ioutil"
+	"os"
+	"path"
+	"runtime"
+	"sort"
+	"strings"
+	"sync"
+
+	grammar "github.com/github/linguist/tools/grammars/proto"
+	"github.com/golang/protobuf/proto"
+	pb "gopkg.in/cheggaaa/pb.v1"
+	yaml "gopkg.in/yaml.v2"
+)
+
+type Converter struct {
+	root string
+
+	modified bool
+	grammars map[string][]string
+	Loaded   map[string]*Repository
+
+	progress *pb.ProgressBar
+	wg       sync.WaitGroup
+	queue    chan string
+	mu       sync.Mutex
+}
+
+func (conv *Converter) Load(src string) *Repository {
+	if strings.HasPrefix(src, "http://") || strings.HasPrefix(src, "https://") {
+		return LoadFromURL(src)
+	}
+	return LoadFromFilesystem(conv.root, src)
+}
+
+func (conv *Converter) work() {
+	for source := range conv.queue {
+		repo := conv.Load(source)
+
+		conv.mu.Lock()
+		conv.Loaded[source] = repo
+		conv.mu.Unlock()
+
+		conv.progress.Increment()
+	}
+
+	conv.wg.Done()
+}
+
+func (conv *Converter) tmpScopes() map[string]bool {
+	scopes := make(map[string]bool)
+	for _, ary := range conv.grammars {
+		for _, s := range ary {
+			scopes[s] = true
+		}
+	}
+	return scopes
+}
+
+func (conv *Converter) AddGrammar(source string) error {
+	repo := conv.Load(source)
+	if len(repo.Files) == 0 {
+		return fmt.Errorf("source '%s' contains no grammar files", source)
+	}
+
+	conv.grammars[source] = repo.Scopes()
+	conv.modified = true
+
+	knownScopes := conv.tmpScopes()
+	repo.FixRules(knownScopes)
+
+	if len(repo.Errors) > 0 {
+		fmt.Fprintf(os.Stderr, "The new grammar %s contains %d errors:\n",
+			repo, len(repo.Errors))
+		for _, err := range repo.Errors {
+			fmt.Fprintf(os.Stderr, "    - %s\n", err)
+		}
+		fmt.Fprintf(os.Stderr, "\n")
+		return fmt.Errorf("failed to compile the given grammar")
+	}
+
+	fmt.Printf("OK! added grammar source '%s'\n", source)
+	for scope := range repo.Files {
+		fmt.Printf("\tnew scope: %s\n", scope)
+	}
+	return nil
+}
+
+func (conv *Converter) AllScopes() map[string]bool {
+	// Map from scope -> Repository first to error check
+	// possible duplicates
+	allScopes := make(map[string]*Repository)
+	for _, repo := range conv.Loaded {
+		for scope := range repo.Files {
+			if original := allScopes[scope]; original != nil {
+				repo.Fail(&DuplicateScopeError{original, scope})
+			} else {
+				allScopes[scope] = repo
+			}
+		}
+	}
+
+	// Convert to scope -> bool
+	scopes := make(map[string]bool)
+	for s := range allScopes {
+		scopes[s] = true
+	}
+	return scopes
+}
+
+func (conv *Converter) ConvertGrammars(update bool) error {
+	conv.Loaded = make(map[string]*Repository)
+	conv.queue = make(chan string, 128)
+
+	conv.progress = pb.New(len(conv.grammars))
+	conv.progress.Start()
+
+	for i := 0; i < runtime.NumCPU(); i++ {
+		conv.wg.Add(1)
+		go conv.work()
+	}
+
+	for src := range conv.grammars {
+		conv.queue <- src
+	}
+
+	close(conv.queue)
+	conv.wg.Wait()
+
+	done := fmt.Sprintf("done! processed %d grammars\n", len(conv.Loaded))
+	conv.progress.FinishPrint(done)
+
+	if update {
+		conv.grammars = make(map[string][]string)
+		conv.modified = true
+	}
+
+	knownScopes := conv.AllScopes()
+
+	for source, repo := range conv.Loaded {
+		repo.FixRules(knownScopes)
+
+		if update {
+			conv.grammars[source] = repo.Scopes()
+		} else {
+			expected := conv.grammars[source]
+			repo.CompareScopes(expected)
+		}
+	}
+
+	return nil
+}
+
+func (conv *Converter) WriteProto(path string) error {
+	library := grammar.Library{
+		Grammars: make(map[string]*grammar.Rule),
+	}
+
+	for _, repo := range conv.Loaded {
+		for scope, file := range repo.Files {
+			library.Grammars[scope] = file.Rule
+		}
+	}
+
+	pb, err := proto.Marshal(&library)
+	if err != nil {
+		return err
+	}
+
+	return ioutil.WriteFile(path, pb, 0666)
+}
+
+func (conv *Converter) writeJSONFile(path string, rule *grammar.Rule) error {
+	j, err := os.Create(path)
+	if err != nil {
+		return err
+	}
+	defer j.Close()
+
+	enc := json.NewEncoder(j)
+	enc.SetIndent("", "  ")
+	return enc.Encode(rule)
+}
+
+func (conv *Converter) WriteJSON(rulePath string) error {
+	if err := os.MkdirAll(rulePath, os.ModePerm); err != nil {
+		return err
+	}
+
+	for _, repo := range conv.Loaded {
+		for scope, file := range repo.Files {
+			p := path.Join(rulePath, scope+".json")
+			if err := conv.writeJSONFile(p, file.Rule); err != nil {
+				return err
+			}
+		}
+	}
+
+	return nil
+}
+
+func (conv *Converter) WriteGrammarList() error {
+	if !conv.modified {
+		return nil
+	}
+
+	outyml, err := yaml.Marshal(conv.grammars)
+	if err != nil {
+		return err
+	}
+
+	ymlpath := path.Join(conv.root, "grammars.yml")
+	return ioutil.WriteFile(ymlpath, outyml, 0666)
+}
+
+func (conv *Converter) Report() error {
+	var failed []*Repository
+	for _, repo := range conv.Loaded {
+		if len(repo.Errors) > 0 {
+			failed = append(failed, repo)
+		}
+	}
+
+	sort.Slice(failed, func(i, j int) bool {
+		return failed[i].Source < failed[j].Source
+	})
+
+	total := 0
+	for _, repo := range failed {
+		fmt.Fprintf(os.Stderr, "- [ ] %s (%d errors)\n", repo, len(repo.Errors))
+		for _, err := range repo.Errors {
+			fmt.Fprintf(os.Stderr, "    - [ ] %s\n", err)
+		}
+		fmt.Fprintf(os.Stderr, "\n")
+		total += len(repo.Errors)
+	}
+
+	if total > 0 {
+		return fmt.Errorf("the grammar library contains %d errors", total)
+	}
+	return nil
+}
+
+func NewConverter(root string) (*Converter, error) {
+	yml, err := ioutil.ReadFile(path.Join(root, "grammars.yml"))
+	if err != nil {
+		return nil, err
+	}
+
+	conv := &Converter{root: root}
+
+	if err := yaml.Unmarshal(yml, &conv.grammars); err != nil {
+		return nil, err
+	}
+
+	return conv, nil
+}

tools/grammars/compiler/cson.go

@@ -0,0 +1,21 @@
+package compiler
+
+import (
+	"bytes"
+	"os/exec"
+)
+
+func ConvertCSON(data []byte) ([]byte, error) {
+	stdin := bytes.NewBuffer(data)
+	stdout := &bytes.Buffer{}
+
+	cmd := exec.Command("csonc")
+	cmd.Stdin = stdin
+	cmd.Stdout = stdout
+
+	if err := cmd.Run(); err != nil {
+		return nil, err
+	}
+
+	return stdout.Bytes(), nil
+}

tools/grammars/compiler/data.go

@@ -0,0 +1,29 @@
+package compiler
+
+var GrammarAliases = map[string]string{
+	"source.erb":         "text.html.erb",
+	"source.cpp":         "source.c++",
+	"source.less":        "source.css.less",
+	"text.html.markdown": "source.gfm",
+	"text.md":            "source.gfm",
+	"source.php":         "text.html.php",
+	"text.plain":         "",
+	"source.asciidoc":    "text.html.asciidoc",
+	"source.perl6":       "source.perl6fe",
+	"source.css.scss":    "source.scss",
+}
+
+var KnownFields = map[string]bool{
+	"comment":            true,
+	"uuid":               true,
+	"author":             true,
+	"comments":           true,
+	"macros":             true,
+	"fileTypes":          true,
+	"firstLineMatch":     true,
+	"keyEquivalent":      true,
+	"foldingStopMarker":  true,
+	"foldingStartMarker": true,
+	"foldingEndMarker":   true,
+	"limitLineLength":    true,
+}

tools/grammars/compiler/errors.go

@@ -0,0 +1,85 @@
+package compiler
+
+import "fmt"
+import "strings"
+
+type ConversionError struct {
+	Path string
+	Err  error
+}
+
+func (err *ConversionError) Error() string {
+	return fmt.Sprintf(
+		"Grammar conversion failed. File `%s` failed to parse: %s",
+		err.Path, err.Err)
+}
+
+type DuplicateScopeError struct {
+	Original  *Repository
+	Duplicate string
+}
+
+func (err *DuplicateScopeError) Error() string {
+	return fmt.Sprintf(
+		"Duplicate scope in repository: scope `%s` was already defined in %s",
+		err.Duplicate, err.Original)
+}
+
+type MissingScopeError struct {
+	Scope string
+}
+
+func (err *MissingScopeError) Error() string {
+	return fmt.Sprintf(
+		"Missing scope in repository: `%s` is listed in grammars.yml but cannot be found",
+		err.Scope)
+}
+
+type UnexpectedScopeError struct {
+	File  *LoadedFile
+	Scope string
+}
+
+func (err *UnexpectedScopeError) Error() string {
+	return fmt.Sprintf(
+		"Unexpected scope in repository: `%s` declared in %s was not listed in grammars.yml",
+		err.Scope, err.File)
+}
+
+type MissingIncludeError struct {
+	File    *LoadedFile
+	Include string
+}
+
+func (err *MissingIncludeError) Error() string {
+	return fmt.Sprintf(
+		"Missing include in grammar: %s attempts to include `%s` but the scope cannot be found",
+		err.File, err.Include)
+}
+
+type UnknownKeysError struct {
+	File *LoadedFile
+	Keys []string
+}
+
+func (err *UnknownKeysError) Error() string {
+	var keys []string
+	for _, k := range err.Keys {
+		keys = append(keys, fmt.Sprintf("`%s`", k))
+	}
+
+	return fmt.Sprintf(
+		"Unknown keys in grammar: %s contains invalid keys (%s)",
+		err.File, strings.Join(keys, ", "))
+}
+
+type InvalidRegexError struct {
+	File *LoadedFile
+	Err  error
+}
+
+func (err *InvalidRegexError) Error() string {
+	return fmt.Sprintf(
+		"Invalid regex in grammar: %s contains a malformed regex (%s)",
+		err.File, err.Err)
+}

tools/grammars/compiler/loader.go

@@ -0,0 +1,124 @@
+package compiler
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+	"sort"
+	"strings"
+
+	grammar "github.com/github/linguist/tools/grammars/proto"
+)
+
+type LoadedFile struct {
+	Path string
+	Rule *grammar.Rule
+}
+
+func (f *LoadedFile) String() string {
+	return fmt.Sprintf("`%s` (in `%s`)", f.Rule.ScopeName, f.Path)
+}
+
+type Repository struct {
+	Source   string
+	Upstream string
+	Files    map[string]*LoadedFile
+	Errors   []error
+}
+
+func newRepository(src string) *Repository {
+	return &Repository{
+		Source: src,
+		Files:  make(map[string]*LoadedFile),
+	}
+}
+
+func (repo *Repository) String() string {
+	str := fmt.Sprintf("repository `%s`", repo.Source)
+	if repo.Upstream != "" {
+		str = str + fmt.Sprintf(" (from %s)", repo.Upstream)
+	}
+	return str
+}
+
+func (repo *Repository) Fail(err error) {
+	repo.Errors = append(repo.Errors, err)
+}
+
+func (repo *Repository) AddFile(path string, rule *grammar.Rule, uk []string) {
+	file := &LoadedFile{
+		Path: path,
+		Rule: rule,
+	}
+
+	repo.Files[rule.ScopeName] = file
+	if len(uk) > 0 {
+		repo.Fail(&UnknownKeysError{file, uk})
+	}
+}
+
+func toMap(slice []string) map[string]bool {
+	m := make(map[string]bool)
+	for _, s := range slice {
+		m[s] = true
+	}
+	return m
+}
+
+func (repo *Repository) CompareScopes(scopes []string) {
+	expected := toMap(scopes)
+
+	for scope, file := range repo.Files {
+		if !expected[scope] {
+			repo.Fail(&UnexpectedScopeError{file, scope})
+		}
+	}
+
+	for scope := range expected {
+		if _, ok := repo.Files[scope]; !ok {
+			repo.Fail(&MissingScopeError{scope})
+		}
+	}
+}
+
+func (repo *Repository) FixRules(knownScopes map[string]bool) {
+	for _, file := range repo.Files {
+		w := walker{
+			File:    file,
+			Known:   knownScopes,
+			Missing: make(map[string]bool),
+		}
+
+		w.walk(file.Rule)
+		repo.Errors = append(repo.Errors, w.Errors...)
+
+	}
+}
+
+func (repo *Repository) Scopes() (scopes []string) {
+	for s := range repo.Files {
+		scopes = append(scopes, s)
+	}
+	sort.Strings(scopes)
+	return
+}
+
+func isValidGrammar(path string, info os.FileInfo) bool {
+	if info.IsDir() {
+		return false
+	}
+
+	dir := filepath.Dir(path)
+	ext := filepath.Ext(path)
+
+	switch strings.ToLower(ext) {
+	case ".plist":
+		return strings.HasSuffix(dir, "/Syntaxes")
+	case ".tmlanguage", ".yaml-tmlanguage":
+		return true
+	case ".cson", ".json":
+		return strings.HasSuffix(dir, "/grammars")
+	default:
+		return false
+	}
+}

tools/grammars/compiler/loader_fs.go

@@ -0,0 +1,80 @@
+package compiler
+
+import (
+	"io/ioutil"
+	"os"
+	"os/exec"
+	"path"
+	"path/filepath"
+	"strings"
+)
+
+type fsLoader struct {
+	*Repository
+	abspath string
+}
+
+func (l *fsLoader) findGrammars() (files []string, err error) {
+	err = filepath.Walk(l.abspath,
+		func(path string, info os.FileInfo, err error) error {
+			if err == nil && isValidGrammar(path, info) {
+				files = append(files, path)
+			}
+			return nil
+		})
+	return
+}
+
+func (l *fsLoader) load() {
+	grammars, err := l.findGrammars()
+	if err != nil {
+		l.Fail(err)
+		return
+	}
+
+	for _, path := range grammars {
+		data, err := ioutil.ReadFile(path)
+		if err != nil {
+			l.Fail(err)
+			continue
+		}
+
+		if rel, err := filepath.Rel(l.abspath, path); err == nil {
+			path = rel
+		}
+
+		rule, unknown, err := ConvertProto(filepath.Ext(path), data)
+		if err != nil {
+			l.Fail(&ConversionError{path, err})
+			continue
+		}
+
+		if _, ok := l.Files[rule.ScopeName]; ok {
+			continue
+		}
+
+		l.AddFile(path, rule, unknown)
+	}
+}
+
+func gitRemoteName(path string) (string, error) {
+	remote, err := exec.Command("git", "-C", path, "remote", "get-url", "origin").Output()
+	if err != nil {
+		return "", err
+	}
+	return strings.TrimSpace(string(remote)), nil
+}
+
+func LoadFromFilesystem(root, src string) *Repository {
+	loader := fsLoader{
+		Repository: newRepository(src),
+		abspath:    path.Join(root, src),
+	}
+	loader.load()
+
+	if ups, err := gitRemoteName(loader.abspath); err == nil {
+		loader.Repository.Upstream = ups
+	}
+
+	return loader.Repository
+}

tools/grammars/compiler/loader_url.go

@@ -0,0 +1,93 @@
+package compiler
+
+import (
+	"archive/tar"
+	"compress/gzip"
+	"io"
+	"io/ioutil"
+	"net/http"
+	"path/filepath"
+	"strings"
+)
+
+type urlLoader struct {
+	*Repository
+}
+
+func (l *urlLoader) loadTarball(r io.Reader) {
+	gzf, err := gzip.NewReader(r)
+	if err != nil {
+		l.Fail(err)
+		return
+	}
+	defer gzf.Close()
+
+	tarReader := tar.NewReader(gzf)
+	for true {
+		header, err := tarReader.Next()
+
+		if err != nil {
+			if err != io.EOF {
+				l.Fail(err)
+			}
+			return
+		}
+
+		if isValidGrammar(header.Name, header.FileInfo()) {
+			data, err := ioutil.ReadAll(tarReader)
+			if err != nil {
+				l.Fail(err)
+				return
+			}
+
+			ext := filepath.Ext(header.Name)
+			rule, unknown, err := ConvertProto(ext, data)
+			if err != nil {
+				l.Fail(&ConversionError{header.Name, err})
+				continue
+			}
+
+			if _, ok := l.Files[rule.ScopeName]; ok {
+				continue
+			}
+
+			l.AddFile(header.Name, rule, unknown)
+		}
+	}
+}
+
+func (l *urlLoader) load() {
+	res, err := http.Get(l.Source)
+	if err != nil {
+		l.Fail(err)
+		return
+	}
+	defer res.Body.Close()
+
+	if strings.HasSuffix(l.Source, ".tar.gz") {
+		l.loadTarball(res.Body)
+		return
+	}
+
+	data, err := ioutil.ReadAll(res.Body)
+	if err != nil {
+		l.Fail(err)
+		return
+	}
+
+	ext := filepath.Ext(l.Source)
+	filename := filepath.Base(l.Source)
+	rule, unknown, err := ConvertProto(ext, data)
+	if err != nil {
+		l.Fail(&ConversionError{filename, err})
+		return
+	}
+
+	l.AddFile(filename, rule, unknown)
+}
+
+func LoadFromURL(src string) *Repository {
+	loader := urlLoader{newRepository(src)}
+	loader.load()
+	return loader.Repository
+}

tools/grammars/compiler/pcre.go

@@ -0,0 +1,68 @@
+package compiler
+
+import (
+	"fmt"
+
+	"github.com/github/linguist/tools/grammars/pcre"
+)
+
+type replacement struct {
+	pos int
+	len int
+	val string
+}
+
+func fixRegex(re string) (string, bool) {
+	var (
+		replace     []replacement
+		escape      = false
+		hasBackRefs = false
+	)
+
+	for i, ch := range re {
+		if escape {
+			if ch == 'h' {
+				replace = append(replace, replacement{i - 1, 2, "[[:xdigit:]]"})
+			}
+			if '0' <= ch && ch <= '9' {
+				hasBackRefs = true
+			}
+		}
+		escape = !escape && ch == '\\'
+	}
+
+	if len(replace) > 0 {
+		reb := []byte(re)
+		offset := 0
+		for _, repl := range replace {
+			reb = append(
+				reb[:offset+repl.pos],
+				append([]byte(repl.val), reb[offset+repl.pos+repl.len:]...)...)
+			offset += len(repl.val) - repl.len
+		}
+		return string(reb), hasBackRefs
+	}
+
+	return re, hasBackRefs
+}
+
+func CheckPCRE(re string) (string, error) {
+	hasBackRefs := false
+
+	if re == "" {
+		return "", nil
+	}
+	if len(re) > 32*1024 {
+		return "", fmt.Errorf(
+			"regex %s: definition too long (%d bytes)",
+			pcre.RegexPP(re), len(re))
+	}
+
+	re, hasBackRefs = fixRegex(re)
+	if !hasBackRefs {
+		if err := pcre.CheckRegexp(re, pcre.DefaultFlags); err != nil {
+			return "", err
+		}
+	}
+	return re, nil
+}

tools/grammars/compiler/pcre_test.go

@@ -0,0 +1,27 @@
+package compiler
+
+import (
+	"testing"
+)
+
+func Test_fixRegex(t *testing.T) {
+	tests := []struct {
+		re   string
+		want string
+	}{
+		{"foobar", "foobar"},
+		{`testing\h`, "testing[[:xdigit:]]"},
+		{`\htest`, `[[:xdigit:]]test`},
+		{`abc\hdef`, `abc[[:xdigit:]]def`},
+		{`\\\htest`, `\\[[:xdigit:]]test`},
+		{`\\htest`, `\\htest`},
+		{`\h\h\h\h`, `[[:xdigit:]][[:xdigit:]][[:xdigit:]][[:xdigit:]]`},
+		{`abc\hdef\hghi\h`, `abc[[:xdigit:]]def[[:xdigit:]]ghi[[:xdigit:]]`},
+	}
+	for _, tt := range tests {
+		got, _ := fixRegex(tt.re)
+		if got != tt.want {
+			t.Errorf("fixRegex() got = %v, want %v", got, tt.want)
+		}
+	}
+}

tools/grammars/compiler/proto.go

@@ -0,0 +1,96 @@
+package compiler
+
+import (
+	"encoding/json"
+	"fmt"
+	"reflect"
+	"strings"
+
+	grammar "github.com/github/linguist/tools/grammars/proto"
+	"github.com/groob/plist"
+	"github.com/mitchellh/mapstructure"
+	yaml "gopkg.in/yaml.v2"
+)
+
+func looseDecoder(f reflect.Kind, t reflect.Kind, data interface{}) (interface{}, error) {
+	dataVal := reflect.ValueOf(data)
+	switch t {
+	case reflect.Bool:
+		switch f {
+		case reflect.Bool:
+			return dataVal.Bool(), nil
+		case reflect.Float32, reflect.Float64:
+			return (int(dataVal.Float()) != 0), nil
+		case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+			return (dataVal.Int() != 0), nil
+		case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
+			return (dataVal.Uint() != 0), nil
+		case reflect.String:
+			switch dataVal.String() {
+			case "1":
+				return true, nil
+			case "0":
+				return false, nil
+			}
+		}
+	}
+
+	return data, nil
+}
+
+func filterUnusedKeys(keys []string) (out []string) {
+	for _, k := range keys {
+		parts := strings.Split(k, ".")
+		field := parts[len(parts)-1]
+		if !KnownFields[field] {
+			out = append(out, k)
+		}
+	}
+	return
+}
+
+func ConvertProto(ext string, data []byte) (*grammar.Rule, []string, error) {
+	var (
+		raw map[string]interface{}
+		out grammar.Rule
+		err error
+		md  mapstructure.Metadata
+	)
+
+	switch strings.ToLower(ext) {
+	case ".plist", ".tmlanguage":
+		err = plist.Unmarshal(data, &raw)
+	case ".yaml-tmlanguage":
+		err = yaml.Unmarshal(data, &raw)
+	case ".cson":
+		data, err = ConvertCSON(data)
+		if err == nil {
+			err = json.Unmarshal(data, &raw)
+		}
+	case ".json":
+		err = json.Unmarshal(data, &raw)
+	default:
+		err = fmt.Errorf("grammars: unsupported extension '%s'", ext)
+	}
+
+	if err != nil {
+		return nil, nil, err
+	}
+
+	config := mapstructure.DecoderConfig{
+		Result:     &out,
+		Metadata:   &md,
+		DecodeHook: looseDecoder,
+	}
+
+	decoder, err := mapstructure.NewDecoder(&config)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	if err := decoder.Decode(raw); err != nil {
+		return nil, nil, err
+	}
+
+	return &out, filterUnusedKeys(md.Unused), nil
+}

tools/grammars/compiler/walker.go

@@ -0,0 +1,79 @@
+package compiler
+
+import (
+	"strings"
+
+	grammar "github.com/github/linguist/tools/grammars/proto"
+)
+
+func (w *walker) checkInclude(rule *grammar.Rule) {
+	include := rule.Include
+
+	if include == "" || include[0] == '#' || include[0] == '$' {
+		return
+	}
+
+	if alias, ok := GrammarAliases[include]; ok {
+		rule.Include = alias
+		return
+	}
+
+	include = strings.Split(include, "#")[0]
+	ok := w.Known[include]
+	if !ok {
+		if !w.Missing[include] {
+			w.Missing[include] = true
+			w.Errors = append(w.Errors, &MissingIncludeError{w.File, include})
+		}
+		rule.Include = ""
+	}
+}
+
+func (w *walker) checkRegexps(rule *grammar.Rule) {
+	check := func(re string) string {
+		re2, err := CheckPCRE(re)
+		if err != nil {
+			w.Errors = append(w.Errors, &InvalidRegexError{w.File, err})
+		}
+		return re2
+	}
+
+	rule.Match = check(rule.Match)
+	rule.Begin = check(rule.Begin)
+	rule.While = check(rule.While)
+	rule.End = check(rule.End)
+}
+
+func (w *walker) walk(rule *grammar.Rule) {
+	w.checkInclude(rule)
+	w.checkRegexps(rule)
+
+	for _, rule := range rule.Patterns {
+		w.walk(rule)
+	}
+	for _, rule := range rule.Captures {
+		w.walk(rule)
+	}
+	for _, rule := range rule.BeginCaptures {
+		w.walk(rule)
+	}
+	for _, rule := range rule.WhileCaptures {
+		w.walk(rule)
+	}
+	for _, rule := range rule.EndCaptures {
+		w.walk(rule)
+	}
+	for _, rule := range rule.Repository {
+		w.walk(rule)
+	}
+	for _, rule := range rule.Injections {
+		w.walk(rule)
+	}
+}
+
+type walker struct {
+	File    *LoadedFile
+	Known   map[string]bool
+	Missing map[string]bool
+	Errors  []error
+}

tools/grammars/docker/build

@@ -0,0 +1,11 @@
+#!/bin/sh
+
+set -ex
+cd "$(dirname "$0")/.."
+
+image=linguist/grammar-compiler
+docker build -t $image .
+
+if [ "$1" = "--push" ]; then
+    docker push $image
+fi

tools/grammars/pcre/pcre.go

@@ -0,0 +1,53 @@
+package pcre
+
+/*
+#cgo LDFLAGS: -lpcre
+#include <pcre.h>
+*/
+import "C"
+
+import (
+	"fmt"
+	"strings"
+	"unsafe"
+)
+
+func RegexPP(re string) string {
+	if len(re) > 32 {
+		re = fmt.Sprintf("\"`%s`...\"", re[:32])
+	} else {
+		re = fmt.Sprintf("\"`%s`\"", re)
+	}
+	return strings.Replace(re, "\n", "", -1)
+}
+
+type CompileError struct {
+	Pattern string
+	Message string
+	Offset  int
+}
+
+func (e *CompileError) Error() string {
+	return fmt.Sprintf("regex %s: %s (at offset %d)",
+		RegexPP(e.Pattern), e.Message, e.Offset)
+}
+
+const DefaultFlags = int(C.PCRE_DUPNAMES | C.PCRE_UTF8 | C.PCRE_NEWLINE_ANYCRLF)
+
+func CheckRegexp(pattern string, flags int) error {
+	pattern1 := C.CString(pattern)
+	defer C.free(unsafe.Pointer(pattern1))
+
+	var errptr *C.char
+	var erroffset C.int
+	ptr := C.pcre_compile(pattern1, C.int(flags), &errptr, &erroffset, nil)
+	if ptr == nil {
+		return &CompileError{
+			Pattern: pattern,
+			Message: C.GoString(errptr),
+			Offset:  int(erroffset),
+		}
+	}
+	C.free(unsafe.Pointer(ptr))
+	return nil
+}

tools/grammars/proto/grammar.pb.go

@@ -0,0 +1,239 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// source: proto/grammar.proto
+
+/*
+Package grammar is a generated protocol buffer package.
+
+It is generated from these files:
+	proto/grammar.proto
+
+It has these top-level messages:
+	Rule
+	Library
+*/
+package grammar
+
+import proto "github.com/golang/protobuf/proto"
+import fmt "fmt"
+import math "math"
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = proto.Marshal
+var _ = fmt.Errorf
+var _ = math.Inf
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the proto package it is being compiled against.
+// A compilation error at this line likely means your copy of the
+// proto package needs to be updated.
+const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package
+
+type Rule struct {
+	Name                string           `protobuf:"bytes,1,opt,name=name" json:"name,omitempty"`
+	ScopeName           string           `protobuf:"bytes,2,opt,name=scopeName" json:"scopeName,omitempty"`
+	ContentName         string           `protobuf:"bytes,3,opt,name=contentName" json:"contentName,omitempty"`
+	Match               string           `protobuf:"bytes,4,opt,name=match" json:"match,omitempty"`
+	Begin               string           `protobuf:"bytes,5,opt,name=begin" json:"begin,omitempty"`
+	While               string           `protobuf:"bytes,6,opt,name=while" json:"while,omitempty"`
+	End                 string           `protobuf:"bytes,7,opt,name=end" json:"end,omitempty"`
+	Include             string           `protobuf:"bytes,8,opt,name=include" json:"include,omitempty"`
+	Patterns            []*Rule          `protobuf:"bytes,9,rep,name=patterns" json:"patterns,omitempty"`
+	Captures            map[string]*Rule `protobuf:"bytes,10,rep,name=captures" json:"captures,omitempty" protobuf_key:"bytes,1,opt,name=key" protobuf_val:"bytes,2,opt,name=value"`
+	BeginCaptures       map[string]*Rule `protobuf:"bytes,11,rep,name=beginCaptures" json:"beginCaptures,omitempty" protobuf_key:"bytes,1,opt,name=key" protobuf_val:"bytes,2,opt,name=value"`
+	WhileCaptures       map[string]*Rule `protobuf:"bytes,12,rep,name=whileCaptures" json:"whileCaptures,omitempty" protobuf_key:"bytes,1,opt,name=key" protobuf_val:"bytes,2,opt,name=value"`
+	EndCaptures         map[string]*Rule `protobuf:"bytes,13,rep,name=endCaptures" json:"endCaptures,omitempty" protobuf_key:"bytes,1,opt,name=key" protobuf_val:"bytes,2,opt,name=value"`
+	Repository          map[string]*Rule `protobuf:"bytes,14,rep,name=repository" json:"repository,omitempty" protobuf_key:"bytes,1,opt,name=key" protobuf_val:"bytes,2,opt,name=value"`
+	Injections          map[string]*Rule `protobuf:"bytes,15,rep,name=injections" json:"injections,omitempty" protobuf_key:"bytes,1,opt,name=key" protobuf_val:"bytes,2,opt,name=value"`
+	Disabled            bool             `protobuf:"varint,16,opt,name=disabled" json:"disabled,omitempty"`
+	ApplyEndPatternLast bool             `protobuf:"varint,17,opt,name=applyEndPatternLast" json:"applyEndPatternLast,omitempty"`
+	IncludeResetBase    bool             `protobuf:"varint,18,opt,name=includeResetBase" json:"includeResetBase,omitempty"`
+}
+
+func (m *Rule) Reset()                    { *m = Rule{} }
+func (m *Rule) String() string            { return proto.CompactTextString(m) }
+func (*Rule) ProtoMessage()               {}
+func (*Rule) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{0} }
+
+func (m *Rule) GetName() string {
+	if m != nil {
+		return m.Name
+	}
+	return ""
+}
+
+func (m *Rule) GetScopeName() string {
+	if m != nil {
+		return m.ScopeName
+	}
+	return ""
+}
+
+func (m *Rule) GetContentName() string {
+	if m != nil {
+		return m.ContentName
+	}
+	return ""
+}
+
+func (m *Rule) GetMatch() string {
+	if m != nil {
+		return m.Match
+	}
+	return ""
+}
+
+func (m *Rule) GetBegin() string {
+	if m != nil {
+		return m.Begin
+	}
+	return ""
+}
+
+func (m *Rule) GetWhile() string {
+	if m != nil {
+		return m.While
+	}
+	return ""
+}
+
+func (m *Rule) GetEnd() string {
+	if m != nil {
+		return m.End
+	}
+	return ""
+}
+
+func (m *Rule) GetInclude() string {
+	if m != nil {
+		return m.Include
+	}
+	return ""
+}
+
+func (m *Rule) GetPatterns() []*Rule {
+	if m != nil {
+		return m.Patterns
+	}
+	return nil
+}
+
+func (m *Rule) GetCaptures() map[string]*Rule {
+	if m != nil {
+		return m.Captures
+	}
+	return nil
+}
+
+func (m *Rule) GetBeginCaptures() map[string]*Rule {
+	if m != nil {
+		return m.BeginCaptures
+	}
+	return nil
+}
+
+func (m *Rule) GetWhileCaptures() map[string]*Rule {
+	if m != nil {
+		return m.WhileCaptures
+	}
+	return nil
+}
+
+func (m *Rule) GetEndCaptures() map[string]*Rule {
+	if m != nil {
+		return m.EndCaptures
+	}
+	return nil
+}
+
+func (m *Rule) GetRepository() map[string]*Rule {
+	if m != nil {
+		return m.Repository
+	}
+	return nil
+}
+
+func (m *Rule) GetInjections() map[string]*Rule {
+	if m != nil {
+		return m.Injections
+	}
+	return nil
+}
+
+func (m *Rule) GetDisabled() bool {
+	if m != nil {
+		return m.Disabled
+	}
+	return false
+}
+
+func (m *Rule) GetApplyEndPatternLast() bool {
+	if m != nil {
+		return m.ApplyEndPatternLast
+	}
+	return false
+}
+
+func (m *Rule) GetIncludeResetBase() bool {
+	if m != nil {
+		return m.IncludeResetBase
+	}
+	return false
+}
+
+type Library struct {
+	Grammars map[string]*Rule `protobuf:"bytes,1,rep,name=grammars" json:"grammars,omitempty" protobuf_key:"bytes,1,opt,name=key" protobuf_val:"bytes,2,opt,name=value"`
+}
+
+func (m *Library) Reset()                    { *m = Library{} }
+func (m *Library) String() string            { return proto.CompactTextString(m) }
+func (*Library) ProtoMessage()               {}
+func (*Library) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{1} }
+
+func (m *Library) GetGrammars() map[string]*Rule {
+	if m != nil {
+		return m.Grammars
+	}
+	return nil
+}
+
+func init() {
+	proto.RegisterType((*Rule)(nil), "grammar.Rule")
+	proto.RegisterType((*Library)(nil), "grammar.Library")
+}
+
+func init() { proto.RegisterFile("proto/grammar.proto", fileDescriptor0) }
+
+var fileDescriptor0 = []byte{
+	// 486 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xa4, 0x54, 0xcb, 0x8e, 0xd3, 0x30,
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+	0x37, 0xb9, 0x40, 0x84, 0x9e, 0xe4, 0x6b, 0xc1, 0x82, 0x28, 0x98, 0x0d, 0x63, 0x5a, 0xe3, 0x43,
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+	0xd0, 0x99, 0x29, 0x54, 0xc5, 0xee, 0x52, 0xc0, 0xa3, 0x76, 0x40, 0x5c, 0xf3, 0xce, 0xdf, 0x30,
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+	0x4e, 0xde, 0x04, 0xd3, 0x6f, 0x80, 0x87, 0x57, 0xde, 0x31, 0xf0, 0xf0, 0xee, 0xbb, 0x04, 0x7e,
+	0x81, 0xc9, 0x7e, 0x0d, 0xba, 0xc4, 0x2d, 0xe1, 0x7c, 0xaf, 0x14, 0x1d, 0xd3, 0xf6, 0x3a, 0xd2,
+	0x21, 0xed, 0xf2, 0x6f, 0x00, 0x83, 0x65, 0xb6, 0x52, 0x5c, 0x55, 0x78, 0x05, 0xa1, 0x97, 0x69,
+	0x16, 0xec, 0xbd, 0x0d, 0xaf, 0x99, 0x7f, 0xf4, 0x02, 0xff, 0xd4, 0xb7, 0x7a, 0x5b, 0x90, 0x16,
+	0xd5, 0x61, 0x4f, 0xab, 0x33, 0xfa, 0xeb, 0xbe, 0xfa, 0x1f, 0x00, 0x00, 0xff, 0xff, 0x2b, 0x2e,
+	0xec, 0x55, 0x8c, 0x05, 0x00, 0x00,
+}

vendor/README.md

@@ -70,6 +70,7 @@ This is a list of grammars that Linguist selects to provide syntax highlighting
 - **ColdFusion CFC:** [SublimeText/ColdFusion](https://github.com/SublimeText/ColdFusion)
 - **COLLADA:** [textmate/xml.tmbundle](https://github.com/textmate/xml.tmbundle)
 - **Common Lisp:** [textmate/lisp.tmbundle](https://github.com/textmate/lisp.tmbundle)
+- **Common Workflow Language:** [manabuishii/language-cwl](https://github.com/manabuishii/language-cwl)
 - **Component Pascal:** [textmate/pascal.tmbundle](https://github.com/textmate/pascal.tmbundle)
 - **Cool:** [anunayk/cool-tmbundle](https://github.com/anunayk/cool-tmbundle)
 - **Coq:** [mkolosick/Sublime-Coq](https://github.com/mkolosick/Sublime-Coq)
@@ -168,7 +169,7 @@ This is a list of grammars that Linguist selects to provide syntax highlighting
 - **Ioke:** [vic/ioke-outdated](https://github.com/vic/ioke-outdated)
 - **Isabelle:** [lsf37/Isabelle.tmbundle](https://github.com/lsf37/Isabelle.tmbundle)
 - **Isabelle ROOT:** [lsf37/Isabelle.tmbundle](https://github.com/lsf37/Isabelle.tmbundle)
-- **J:** [bcj/JSyntax](https://github.com/bcj/JSyntax)
+- **J:** [tikkanz/JSyntax](https://github.com/tikkanz/JSyntax)
 - **Jasmin:** [atmarksharp/jasmin-sublime](https://github.com/atmarksharp/jasmin-sublime)
 - **Java:** [textmate/java.tmbundle](https://github.com/textmate/java.tmbundle)
 - **Java Server Pages:** [textmate/java.tmbundle](https://github.com/textmate/java.tmbundle)
@@ -277,6 +278,7 @@ This is a list of grammars that Linguist selects to provide syntax highlighting
 - **PLpgSQL:** [textmate/sql.tmbundle](https://github.com/textmate/sql.tmbundle)
 - **PogoScript:** [featurist/PogoScript.tmbundle](https://github.com/featurist/PogoScript.tmbundle)
 - **Pony:** [CausalityLtd/sublime-pony](https://github.com/CausalityLtd/sublime-pony)
+- **PostCSS:** [hudochenkov/Syntax-highlighting-for-PostCSS](https://github.com/hudochenkov/Syntax-highlighting-for-PostCSS)
 - **PostScript:** [textmate/postscript.tmbundle](https://github.com/textmate/postscript.tmbundle)
 - **POV-Ray SDL:** [c-lipka/language-povray](https://github.com/c-lipka/language-povray)
 - **PowerShell:** [SublimeText/PowerShell](https://github.com/SublimeText/PowerShell)
@@ -349,6 +351,7 @@ This is a list of grammars that Linguist selects to provide syntax highlighting
 - **Stylus:** [billymoon/Stylus](https://github.com/billymoon/Stylus)
 - **Sublime Text Config:** [atom/language-javascript](https://github.com/atom/language-javascript)
 - **SubRip Text:** [314eter/atom-language-srt](https://github.com/314eter/atom-language-srt)
+- **SugarSS:** [hudochenkov/Syntax-highlighting-for-PostCSS](https://github.com/hudochenkov/Syntax-highlighting-for-PostCSS)
 - **SuperCollider:** [supercollider/language-supercollider](https://github.com/supercollider/language-supercollider)
 - **SVG:** [textmate/xml.tmbundle](https://github.com/textmate/xml.tmbundle)
 - **Swift:** [textmate/swift.tmbundle](https://github.com/textmate/swift.tmbundle)
@@ -405,4 +408,5 @@ This is a list of grammars that Linguist selects to provide syntax highlighting
 - **Yacc:** [textmate/bison.tmbundle](https://github.com/textmate/bison.tmbundle)
 - **YAML:** [atom/language-yaml](https://github.com/atom/language-yaml)
 - **YANG:** [DzonyKalafut/language-yang](https://github.com/DzonyKalafut/language-yang)
+- **YARA:** [blacktop/language-yara](https://github.com/blacktop/language-yara)
 - **Zephir:** [phalcon/zephir-sublime](https://github.com/phalcon/zephir-sublime)

vendor/licenses/grammar/Syntax-highlighting-for-PostCSS.txt

@@ -0,0 +1,25 @@
+---
+type: grammar
+name: Syntax-highlighting-for-PostCSS
+license: mit
+---
+The MIT License (MIT)
+
+Copyright 2017 Aleks Hudochenkov <aleks@hudochenkov.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

vendor/licenses/grammar/javadoc.tmbundle.txt

@@ -1,10 +1,9 @@
 ---
 type: grammar
-name: ruby.tmbundle
+name: javadoc.tmbundle
 license: permissive
 curated: true
 ---
-
 If not otherwise specified (see below), files in this repository fall under the following license:
 
 	Permission to copy, use, modify, sell and distribute this

vendor/licenses/grammar/language-cwl.txt

@@ -0,0 +1,26 @@
+---
+type: grammar
+name: language-cwl
+license: mit
+---
+MIT License
+
+Copyright (c) 2017 Manabu Ishii RIKEN Bioinformatics Research Unit
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

vendor/licenses/grammar/language-yara.txt

@@ -0,0 +1,26 @@
+---
+type: grammar
+name: language-yara
+license: mit
+---
+The MIT License (MIT)
+
+Copyright (c) 2014-2016 Blacktop
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.